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Home > Outboard > Mercury Outboard

Mercury Outboard Parts

Shop OEM and aftermarket Mercury outboard parts for maintenance, repair, troubleshooting, and complete engine rebuild projects. Browse Mercury marine parts by system, including cooling, fuel delivery, electrical and ignition, internal engine components, lower unit parts, steering, trim, and routine service items.

Pro Marine USA carries Mercury outboard engine parts for a wide range of 2-stroke, FourStroke, EFI, Optimax, Pro XS, SeaPro, and Verado applications. Use your engine horsepower, model, serial number, or OEM part number whenever possible to confirm fitment before ordering.

Shop Mercury Outboard Parts by System

Find the Correct Mercury Outboard Part

Mercury outboard parts can vary by horsepower, engine family, model year, and serial number range. If you are unsure which component fits your engine, use the OEM parts lookup to locate the original Mercury part number from an engine diagram.

Once you have the OEM part number, search Pro Marine to find available genuine Mercury and aftermarket replacement options.

Use Our OEM Parts Lookup »

Common Mercury Outboard Engine Families

Pro Marine supports many Mercury outboard applications across a wide horsepower range. Always confirm the engine serial number and model information before ordering parts.

Portable and Midrange: Mercury 2.5HP through 60HP 2-stroke and FourStroke applications
FourStroke and EFI: common 75HP through 300HP Mercury EFI and FourStroke platforms
Pro XS: performance-oriented Mercury Pro XS outboards across multiple engine families
Optimax: direct-injected 2-stroke Mercury Optimax engines, commonly 75HP through 250HP
Verado: supercharged and naturally aspirated Mercury Verado applications from 135HP through current high-horsepower platforms
SeaPro: commercial-duty Mercury SeaPro outboards used in professional and high-hour applications

Common Mercury Outboard Repair Areas

Overheating: inspect the water pump, impeller, thermostat, poppet valve, cooling passages, and related cooling components.
Hard starting or rough running: inspect fuel pumps, filters, injectors or carburetors, spark plugs, coils, sensors, and intake components.
No spark or intermittent ignition: check ignition coils, stators, switch boxes, trigger assemblies, sensors, grounds, and wiring.
Low compression or power loss: inspect pistons, rings, cylinders, bearings, gaskets, reeds, and internal engine components.
Lower unit noise or water intrusion: inspect seals, bearings, gears, shafts, bearing carriers, and gear lube condition.
Trim or steering problems: inspect trim motors, pumps, hydraulic components, steering cylinders, hoses, and related rigging parts.

Why Buy Mercury Outboard Parts from Pro Marine USA?

OEM Mercury and aftermarket replacement options for many common applications.
Parts for maintenance, repair, engine rebuilding, lower units, electrical systems, fuel systems, steering, trim, and rigging.
OEM diagram and part-number lookup tools to help identify the correct part before ordering.
Dealer pricing available for qualified marine repair businesses and dealers.
Large inventory of Mercury service parts and hard-to-find marine engine components.
Fast weekday shipping on qualifying in-stock orders.

Frequently Asked Questions

How do I find the correct Mercury outboard part?

Use the engine horsepower, model, serial number, and year whenever available. Mercury frequently uses serial-number ranges to identify engine families, so the serial number is often the most reliable way to confirm fitment.

Can I search Mercury parts by OEM part number?

Yes. Enter the Mercury OEM part number into the Pro Marine site search to locate available OEM and aftermarket replacement options. If you do not know the part number, use the OEM parts lookup first.

Do Mercury outboard parts vary by serial number?

Yes. Many Mercury components change by serial-number range even within the same horsepower or model family. Always compare the serial range listed for the part with your engine before ordering.

Do you carry parts for Mercury Optimax and Verado engines?

Yes. Pro Marine carries parts for many Mercury Optimax, Verado, Pro XS, EFI, FourStroke, and SeaPro applications, including maintenance, fuel, electrical, cooling, internal engine, lower unit, steering, and rigging components.

Do you carry both OEM and aftermarket Mercury parts?

Yes. Pro Marine offers genuine Mercury parts along with aftermarket replacement parts for many common Mercury outboard maintenance, repair, and rebuild applications.

What Mercury outboard parts are commonly replaced during routine maintenance?

Common maintenance items include engine oil, oil filters, fuel filters, spark plugs, water pump kits, impellers, thermostats, gear lube, drain plug seals, anodes, and manufacturer-specific service kit components.

Fitment Tip: Mercury outboard parts often vary by serial-number range. Confirm your engine serial number and OEM part number whenever possible before ordering.

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Mercury 65-150HP EFI / 4.5L-6.2L MPI Low Pressure Fuel Pump

Mercury 8M0245917 FSM Low-Pressure Pump

Mercury Low-Pressure Fuel Supply Module Pump

Mercury 65-150HP EFI & 4.5L / 6.2L MPI Low-Pressure Fuel Pump - 8M0245917

The Mercury 8M0245917 Low-Pressure Fuel Pump is used inside compatible Mercury Fuel Supply Module (FSM) assemblies. Verified applications include select Mercury 65-150HP EFI outboards as well as numerous 4.5L and 6.2L MerCruiser sterndrive, MIE, TowSports, and jet-drive engines.

The low-pressure pump supplies fuel into and through the Fuel Supply Module so the high-pressure pump has an adequate and consistent fuel supply. When servicing the FSM, inspect the 8M0245916 high-pressure pump and the module seals at the same time. Both are linked below.

Mercury Outboard Fitment

Engine	Serial Range
65HP EFI Jet	2B095049 & Present
75HP EFI	2B095049 & Present
75HP EFI SeaPro	2B095049 & Present
80HP EFI	2B095049 & Present
80HP EFI Jet	2B095049 & Present
90HP EFI	2B095049 & Present
90HP EFI SeaPro	2B095049 & Present
100HP EFI	2B095049 & Present
105HP EFI Jet	3B672358 & Present
115HP EFI	2B095049 & Present
115HP EFI SeaPro	2B095049 & Present
115HP EFI Pro XS	2B225488 & Present
135HP EFI	2B131942 & Present
150HP EFI	1B905505 & Present
150HP EFI SeaPro	2B139139 & Present
150HP EFI Pro XS	2B550139 & Present

MerCruiser 4.5L Sterndrive Fitment

Engine	Serial Range
4.5L MPI 200 Alpha / Bravo	2A530778 & Present
4.5L MPI 200 Alpha / Bravo EC	2A530778 & Present
4.5L MPI 250 Alpha / Bravo	2A530778 & Present
4.5L MPI 250 Alpha / Bravo EC	2A530778 & Present

MerCruiser 6.2L Sterndrive Fitment

Engine	Serial Range
6.2L MPI 300	2A530776 & Present
6.2L MPI 300 EC	2A530776 & Present
6.2L MPI 350	2A530776 & Present
6.2L MPI 350 EC	2A530776 & Present

Mercury TowSports Fitment

Engine	Serial Range
6.2L MPI TOW 320	2A530774 & Present
6.2L MPI EC TOW 320	2A530774 & Present
6.2L MPI TOW 370	2A530774 & Present
6.2L MPI EC TOW 370	2A530774 & Present

Mercury MIE Inboard Fitment

Engine	Serial Range
6.2L MPI MIE 300	2A530774 & Present
6.2L MPI MIE EC 300	2A530774 & Present
6.2L MPI MIE 350	2A530774 & Present
6.2L MPI MIE EC 350	2A530774 & Present
6.2L MPI MIE EC Jet 370	2A674166 & Present

Important Fitment Note:

Mercury used multiple Fuel Supply Module configurations across similar engine families. Always verify your engine serial number and confirm that the Fuel Supply Module calls for low-pressure pump 8M0245917 before ordering.

OEM & Cross Reference Numbers

Brand / Type	Part Number
Mercury OEM	8M0245917

Related Fuel Supply Module Service Parts

The low-pressure pump works together with the high-pressure pump inside the Mercury Fuel Supply Module. When diagnosing an FSM fuel problem, test both sides of the system and inspect the internal seals before replacing parts.

Mercury 8M0245916 High-Pressure Fuel Pump

The matching high-pressure fuel pump used in compatible Mercury Fuel Supply Module applications. It provides the fuel pressure required by the engine's electronic fuel-injection system.

View Mercury 8M0245916 High-Pressure Pump

Mercury Fuel Supply Module Seal Kit - 7333

Opening the Fuel Supply Module to replace a pump? Inspect the seals and O-rings while the module is apart. The 7333 FSM Seal Kit is available for compatible Mercury Fuel Supply Module service.

View Mercury FSM Seal Kit

What This Part is Used For

The 8M0245917 low-pressure fuel pump supplies fuel into and through the Fuel Supply Module. Its job is to maintain an adequate supply of fuel for the high-pressure side of the EFI system.

The associated 8M0245916 high-pressure pump then produces the higher fuel pressure required by the engine's fuel-injection system. Both pumps must function correctly for the engine to maintain consistent fuel delivery.

Low-Pressure vs. High-Pressure FSM Pump

Pump	Function
8M0245917 Low-Pressure Pump	Supplies fuel into and through the Fuel Supply Module so the high-pressure pump has an adequate fuel supply.
8M0245916 High-Pressure Pump	Produces the high fuel pressure required by the engine's EFI system.

Common Signs of Low-Pressure Fuel Pump Problems

Hard starting or extended cranking
Fuel Supply Module is not receiving adequate fuel
Loss of power during acceleration
Engine hesitation under load
Engine may run normally at lower RPM but lose power at higher RPM
Insufficient fuel supply feeding the high-pressure pump
Low-pressure pump fails electrical or fuel-delivery testing

Why Test Both FSM Pumps?

Problems on the low-pressure side can create symptoms that appear to be a failing high-pressure pump. If the 8M0245917 low-pressure pump cannot keep the Fuel Supply Module supplied, the 8M0245916 high-pressure pump may not be able to maintain proper fuel pressure.

For this reason, fuel delivery and fuel pressure should be tested before replacing either pump. If the FSM must be opened, inspect the other pump, electrical connections, internal passages, and module seals while it is disassembled.

Key Features and Benefits

Mercury low-pressure Fuel Supply Module pump
Mercury OEM part number 8M0245917
Used on select 65-150HP EFI outboards
Fits select 65HP and 80HP EFI Jet models
Fits select 75, 80, 90, 100, 115, 135, and 150HP EFI engines
Applications include SeaPro and Pro XS models
Fits select 4.5L MPI MerCruiser 200HP and 250HP engines
Fits select 6.2L MPI MerCruiser 300HP and 350HP engines
Fits select 6.2L TowSports 320HP and 370HP engines
Fits select 6.2L MIE 300HP, 350HP, and Jet 370 applications
Matching 8M0245916 high-pressure pump linked above
FSM seal kit linked above

FAQ

What is Mercury 8M0245917?
8M0245917 is the low-pressure electric fuel pump used inside compatible Mercury Fuel Supply Module assemblies.

Is 8M0245917 the low-pressure or high-pressure pump?
It is the low-pressure pump. The associated high-pressure pump is Mercury 8M0245916, which is linked above.

Does 8M0245917 fit Mercury 75-115HP outboards?
Yes. Verified applications include select 75, 80, 90, 100, and 115HP EFI engines beginning with serial number 2B095049, along with the SeaPro, Jet, and Pro XS applications shown above.

Does it fit Mercury 115 Pro XS?
Yes. Verified fitment includes the 115HP EFI Pro XS beginning with serial number 2B225488.

Does it fit Mercury 150HP EFI?
Yes. Verified fitment includes standard 150HP EFI beginning at 1B905505, 150HP EFI SeaPro beginning at 2B139139, and 150HP EFI Pro XS beginning at 2B550139.

Does it fit MerCruiser 4.5L engines?
Yes. Verified applications include select 4.5L MPI 200HP and 250HP Alpha / Bravo engines beginning at serial number 2A530778.

Does it fit MerCruiser 6.2L engines?
Yes. Verified applications include select 6.2L MPI 300HP and 350HP sterndrive engines beginning at serial number 2A530776, along with the MIE and TowSports versions shown above.

What high-pressure pump goes with this pump?
Mercury 8M0245916 is the high-pressure FSM pump linked above for compatible applications.

Should I replace both fuel pumps together?
Not automatically. Test both the low- and high-pressure sides before replacing components. Replace the pump or pumps that fail fuel-delivery, pressure, or electrical testing.

Should I replace the FSM seals while changing this pump?
Inspect the seals whenever the Fuel Supply Module is opened. The 7333 FSM Seal Kit is linked above for convenient service.

How do I verify fitment?
Match the engine model and serial number to the application table above and confirm that the Mercury Fuel Supply Module parts diagram specifies 8M0245917.

Dealer Discounts & Store Policies

Dealer / Marine Industry Discounts

Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.

Apply for a Dealer Account

Shipping Policy

Free shipping on orders over $100 continental U.S.
Orders ship via UPS, USPS, and FedEx.
Orders received before 5:30 PM EST ship the same business day.
Typical delivery time is 1-5 business days.

30-Day Return Policy

Returns accepted within 30 days of delivery.
Parts must be new, unused, and in original packaging.
Installed parts are not returnable.
Return authorization is required before sending items back.

Need help with a return or order question?
Contact Us
Phone: 941-721-3000

Searchable Terms

8M0245917, Mercury 8M0245917, Mercury low pressure fuel pump, Mercury FSM low pressure pump, Mercury Fuel Supply Module pump, Mercury 75 EFI fuel pump, Mercury 75 SeaPro fuel pump, Mercury 80 EFI fuel pump, Mercury 80 Jet fuel pump, Mercury 90 EFI fuel pump, Mercury 90 SeaPro fuel pump, Mercury 100 EFI fuel pump, Mercury 105 Jet fuel pump, Mercury 115 EFI fuel pump, Mercury 115 SeaPro fuel pump, Mercury 115 Pro XS fuel pump, Mercury 135 EFI fuel pump, Mercury 150 EFI fuel pump, Mercury 150 SeaPro fuel pump, Mercury 150 Pro XS fuel pump, MerCruiser 4.5L fuel pump, MerCruiser 4.5 MPI low pressure pump, MerCruiser 6.2L fuel pump, MerCruiser 6.2 MPI low pressure pump, Mercury TowSports fuel pump, Mercury MIE fuel pump, 8M0245916, Mercury high pressure fuel pump, 7333, Mercury FSM seal kit

Item#:

8M0245917

Cross Reference#:

8M0245917

Manufacturer Item:

8M0245917

Manufacturer:

Mercury Marine

Available:

In Stock

229.7000

Your Price:

202.68

Each

Qty:

Mercury MerCruiser Neutral Safety Switch - 52939P

Pro Marine Shift Switch for Outboard, Verado, Pro XS and MerCruiser

Pro Marine Mercury / MerCruiser Neutral Safety Switch

Mercury MerCruiser Neutral Safety / Shift Switch - 52939P

Pro Marine 52939P is an aftermarket replacement neutral safety / shift position switch used across a wide range of Mercury Marine applications.

Applications shown in Mercury parts data include select Mercury and Mariner outboards, Verado, Pro XS, racing outboards, MerCruiser sterndrives, inboards and TowSports engines.

Cross-references Mercury / MerCruiser numbers 8M0207794, 8M0052939, 889514A01, 879150T94 and 814281A7. Because this switch appears in several different shift systems, always verify the OEM number and engine serial range before ordering.

Pro Marine 52939P Switch

Part Type: Neutral Safety / Shift Position Switch
Brand: Pro Marine
OEM or Aftermarket: Aftermarket
Applications: Mercury Outboard and MerCruiser
Outboard Families: Mercury, Mariner, Verado, Pro XS and Racing
MerCruiser Applications: Sterndrive, Inboard and TowSports
Current Mercury Reference: 8M0207794
Pro Marine Item #: 52939P

Compatible Applications

The following applications are taken from the supplied Mercury fitment information. Because this switch is used across multiple engine and shift systems, serial number is important.

Mercury / Mariner 3.0L Outboards

Model	Serial Range
200 HP 3.0L	0T750164 thru 0T800999; 0T801000 thru 1B417701; 1B417702 thru 1B504988; 1B504989 thru 2B528096
225 HP 3.0L	0T409000 thru 0T800999; 0T801000 thru 1B417701; 1B417702 thru 1B504988; 1B504989 thru 2B528096
250 HP 3.0L	0T409000 thru 0T800999; 0T801000 thru 1B417701; 1B417702 thru 1B504988; 1B504989 thru 2B528096
3.0L Marathon	0T409000 thru 0T800999
3.0L SeaPro	0T409000 thru 0T800999
225 HP 3.0L Marathon	0T801000 thru 1B417701
225 HP 3.0L SeaPro	0T801000 thru 1B417701

Mercury 3.0L DFI / Pro XS / Sport XS Applications

Model	Serial Range
200 HP DFI 3.0L	0T980000 thru 1B417701; 1B417702 thru 1B504988; 1B504989 thru 1B912785; 1B912786 thru 2B535571
225 HP DTS 3.0L	0T599000 thru 1B417701; 1B417702 thru 1B504988; 1B504989 thru 1B964735
200 HP DTS 3.0L	0T980000 thru 1B417701; 1B417702 thru 1B504988; 1B504989 thru 1B964735
200 HP Pro XS 3.0L	1B504989 thru 1B912785; 1B912786 thru 2B535571
225 HP Pro XS 3.0L	1B104549 thru 1B426560; 1B426561 thru 1B752546; 1B752547 thru 2B535608
250 HP Pro XS 3.0L	1B752547 thru 2B535608
250 HP XS 3.0L	0T615945 thru 0T818042; 0T818043 thru 0T997973; 0T997974 thru 1E000796; 1E000797 thru 1E002341; 1E002342 thru 1E051113; 1E053158 thru 1E053958
250 HP Sport XS 2.5L	1E002342 thru 1E051823; 1E051824 thru 1E052994
225 HP Sport XS 2.5L	1E002584 thru 1E050825
225 HP XS 2.5L	1E002584 thru 1B792195
225 HP Pro XS 3.0L	1B752547 thru 2B535608

Mercury Racing / Special Performance Applications

Model	Serial Range
300X 3.0L Pro Max	0T429940 thru 0T999587
300 HP XS 6 Cyl 3.2L	1E001867 thru 1E052057; 1E052058 thru 1E053987
200 HP XS 6 Cyl 2.5L	1E000797 thru 1E002110
200 HP XS 6 Cyl 2.5L ROS	1E050852 thru 1E053876
200 HP XS SST 6 Cyl 2.5L	1E050629 thru 1E053875
2.5XS 2.5L	0T997974 thru 1E000796
JP 3.0L	0T997974 thru 1E003045; 1E003046 thru 1E052824
110 Jet 2.5L	1B690542 thru 1B974227
150 HP Pro XS 2.5L	1B690542 thru 2B535572

Mercury V6 2.5L Applications

Model	Serial Range
135 HP V6 2.5L	1B227000 thru 1B417701; 1B417702 thru 1B737495
150 HP V6 2.5L	1B227000 thru 1B417701; 1B417702 thru 1B580029
175 HP V6 2.5L	1B227000 thru 1B417701; 1B417702 thru 1B508457

Mercury Verado Applications

Model	Serial Range
135 HP EFI Verado 4 Cyl	1B227000 thru 1B381711; 1B381712 thru 1B517158; 1B517159 thru 2B576734; Belgium 0P419487 thru 0P464487, 0P464488 thru 0P514868, 0P514869 thru 0P593020
150 HP EFI Verado 4 Cyl	1B227000 thru 1B381711; 1B381712 thru 1B517158; 1B517159 thru 2B576734; Belgium 0P419487 thru 0P464487, 0P464488 thru 0P514868, 0P514869 thru 0P593020
175 HP EFI Verado 4 Cyl	1B227000 thru 1B381711; 1B381712 thru 1B517158; 1B517159 thru 2B576734; Belgium 0P419487 thru 0P464487, 0P464488 thru 0P514868, 0P514869 thru 0P593020
200 HP Verado 4 Cyl	1B517159 thru 2B576734; Belgium 0P514869 thru 0P593020
200 HP Verado 6 Cyl	0T980000 thru 1B226999; 1B227000 thru 1B381711; 1B381712 thru 1B517433; 1B517434 thru 2B144122; Belgium 0P409357 thru 0P464487, 0P464488 thru 0P520552, 0P520553 thru 2B144122
225 HP Verado 6 Cyl	0T980000 thru 1B226999; 1B227000 thru 1B381711; 1B381712 thru 1B517433; 1B517434 thru 2B144122; Belgium 0P409357 thru 0P464487, 0P464488 thru 0P520552, 0P520553 thru 2B144122
250 HP Verado 6 Cyl	0T980000 thru 1B226999; 1B227000 thru 1B381711; 1B381712 thru 1B517433; 1B517434 thru 2B144122; Belgium 0P409357 thru 0P464487, 0P464488 thru 0P520552, 0P520553 thru 2B144122
275 HP Verado 6 Cyl	0T980000 thru 1B226999; 1B227000 thru 1B381711; 1B381712 thru 1B517433; 1B517434 thru 2B144122; Belgium 0P409357 thru 0P464487, 0P464488 thru 0P520552, 0P520553 thru 2B144122
300 HP Verado 6 Cyl	1B517434 thru 2B144122; Belgium 0P520553 thru 2B144122
350 HP SCi Verado	1B716557 thru 2B143542
200 HP Pro Verado 6 Cyl	2B034840 thru 2B144122
250 HP Pro Verado 6 Cyl	1B830170 thru 2B144122
300 HP Pro Verado 6 Cyl	1B830170 thru 2B144122

Mercury 75-115 HP EFI Applications

Model	Serial Range
75 HP EFI	1B366823 thru 2B094995
80 HP EFI	1B366823 thru 2B094995; Belgium 0P459572 thru 2B094995
90 HP EFI	1B366823 thru 2B094995
100 HP EFI	1B366823 thru 2B094995; Belgium 0P459572 thru 2B094995
115 HP EFI	1B366823 thru 2B094995

MerCruiser Sterndrive Applications

The supplied Mercury fitment also shows this switch in multiple MerCruiser Digital Throttle and Shift shift-bracket and actuator assemblies.

MerCruiser Model	Serial Range Shown
496 MAG Base / H.O.	0M025000 thru 0M687082/143; 0M687083/144 thru 0W059999; 0W060000 thru 0W309999; 0W310000 thru 0W649999; 0W650000 thru 1A066165; 1A066166 thru 1A350678; 1A350679 and later applications shown
5.0L MPI Alpha / Bravo	0W310000 thru 0W649999; 0W650000 thru 1A299999; 1A300000 thru 1A611927; 1A611928 thru 1A623184; 1A623185 and later applications shown
5.0L MPI Alpha / Bravo EC	1A300000 thru 1A611927; 1A611928 thru 1A623184; 1A623185 and later applications shown
350 MAG MPI Alpha / Bravo	0W310000 thru 0W649999; 0W650000 thru 1A299999; 1A300000 thru 1A611927; 1A611928 thru 1A623184; 1A623185 and later applications shown
350 MAG MPI Horizon Alpha / Bravo	0W310000 thru 0W649999; 0W650000 thru 1A299999; 1A300000 thru 1A611927; 1A611928 thru 1A623184; 1A623185 and later applications shown
350 MAG MPI Alpha / Bravo EC	1A300000 thru 1A611927; 1A611928 thru 1A623184; 1A623185 and later applications shown
377 MAG MPI Bravo	1A300000 thru 1A611927; 1A611928 thru 1A623184; later applications shown
377 MAG MPI Bravo EC	1A343300 thru 1A611927; 1A611928 thru 1A623184; later applications shown
MX 6.2L MPI Bravo / Horizon Bravo	0W310000 thru 0W649999
8.2L Mag / Mag EC Base and H.O.	1A350340/478/497 thru 2A041664; 2A041665 thru 2A051740/741; 2A051742/743 and later applications shown
565 EFI	0M967821 and later applications shown
520	0M970122 and later applications shown
540	0M970866 and later applications shown

Mercury Diesel / CMD Applications

Model	Application / Serial Range
CMD QSD 2.0 ES 115 / 130 / 150 / 170	Multiple sterndrive and inboard/TowSports serial ranges shown in supplied fitment
CMD QSD 2.8 ES 170 / 210 / 220 / 230	Multiple sterndrive and inboard/TowSports serial ranges shown in supplied fitment
CMD QSD 4.2 ES 270 / 320 / 350	Multiple sterndrive and inboard/TowSports serial ranges shown in supplied fitment
TDI 4.2L 335 MIE / MCM	CMC000200 and later applications shown
TDI 4.2L 370 MIE / MCM	CMC000200 and later applications shown
3.0L TDI 100 SD	All serials shown
3.0L TDI 230 SD / IB	All serials shown
3.0L TDI 260 SD / IB	All serials shown

Important Fitment Note

This switch is used in many different Mercury Marine shift systems. The engine horsepower by itself is not enough to determine fitment.

Verify your engine model, serial number and OEM switch number before ordering.

Depending on the application, Mercury parts diagrams may show this switch under throttle linkage, shift linkage, shift components, upper shift components, DTS shift brackets, shift actuators or related assemblies.

OEM and Cross Reference Numbers

Brand / Type	Part Number
Pro Marine	52939P
Current Mercury Reference	8M0207794
Mercury OEM	8M0052939
Mercury OEM	889514A01
Mercury OEM	814281A7
Mercury Cross Reference	879150T94

OEM Mercury Version Available

Mercury OEM Switch - 8M0052939

Prefer the genuine Mercury version? Pro Marine USA also stocks the OEM Mercury switch for this application.

View Mercury OEM 8M0052939 Switch

What This Part is Used For

The neutral safety / shift position switch provides the engine or control system with information about the position of the shift mechanism.

In applications where it functions as the neutral safety switch, it is part of the starting-safety circuit designed to prevent the engine from being started when the shift mechanism is in gear.

Mercury also uses this switch within several mechanical and Digital Throttle and Shift (DTS) systems, which explains the wide variety of outboard, sterndrive and inboard applications shown in the fitment data.

Common Symptoms of a Faulty Neutral Safety / Shift Switch

Engine will not crank even though the control is in neutral
Intermittent no-crank condition
Starting issue changes when the control lever is moved slightly
Incorrect or inconsistent shift-position signal
DTS or shift-related fault after other causes have been ruled out
Physical damage to the switch or actuator
Corrosion or damaged electrical connections

These symptoms can also be caused by wiring, adjustment, control or starting-system problems. Diagnose the system before replacing the switch.

Installation and Replacement Tips

Disconnect battery power before servicing the shift or starting circuit.
Confirm the OEM switch number before removing the original part.
Note the position and adjustment of the original switch before removal.
Inspect the switch connector and wiring for corrosion or damage.
Check the shift linkage for excessive wear or improper adjustment.
Install and adjust the switch according to the applicable Mercury service procedure.
Verify that the engine starts only in the intended neutral position where applicable.
Verify proper forward, neutral and reverse operation after installation.
On DTS applications, follow the appropriate Mercury diagnostic and setup procedures.

Key Features and Benefits

Pro Marine aftermarket replacement switch
Fits numerous Mercury Marine shift-system applications
Applications include Mercury and Mariner outboards
Fits select Mercury Verado and Pro Verado models
Fits select Mercury Pro XS, XS and racing outboards
Fits select MerCruiser sterndrive applications
Fits select MerCruiser inboard and TowSports applications
Used in mechanical and DTS-related shift systems depending on application
Crosses to Mercury 8M0207794
Crosses to Mercury 8M0052939
Crosses to 889514A01, 814281A7 and 879150T94
Pro Marine item number 52939P

FAQ

What does Pro Marine 52939P fit?
It fits a wide range of select Mercury Marine applications including Mercury and Mariner outboards, Verado, Pro XS and racing outboards, plus numerous MerCruiser sterndrive, inboard and TowSports applications. Use the model and serial-number tables above for fitment.

Is 52939P a neutral safety switch?
Yes. It is commonly identified as a neutral safety / shift position switch. Its exact role varies with the Mercury shift system in which it is installed.

Does 52939P replace Mercury 8M0207794?
Yes. 8M0207794 is the current Mercury reference associated with this switch application.

What happened to Mercury 8M0052939?
Mercury parts data shows 8M0052939 superseded by 8M0207794.

Does this replace 889514A01?
Yes. 889514A01 is an earlier Mercury switch assembly in the verified supersession family.

Does this replace 814281A7?
Yes. 814281A7 is also an earlier Mercury switch number in the verified supersession family.

Does it fit Mercury Verado?
Yes. The supplied Mercury fitment includes numerous 135-350 HP Verado applications, including 4-cylinder, 6-cylinder and Pro Verado models. Serial number must be verified.

Does it fit Mercury Pro XS?
Yes. The supplied fitment includes several Pro XS applications, including 2.5L and 3.0L models. Refer to the model and serial ranges above.

Does it fit MerCruiser engines?
Yes. The supplied Mercury fitment includes numerous MerCruiser sterndrive and inboard applications, including 496 MAG, 5.0L MPI, 350 MAG, 377 MAG, 8.2L and several CMD / TDI diesel applications.

Can I select this switch by horsepower?
No. This switch spans many engine families and shift systems. Verify the engine model, serial number and OEM part number before ordering.

Do you also carry the genuine Mercury switch?
Yes. Pro Marine USA also stocks the Mercury OEM 8M0052939 switch .

Dealer Discounts & Store Policies

Dealer / Marine Industry Discounts

Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.

Apply for a Dealer Account

Shipping Policy

Free shipping on orders over $100 continental U.S.
Orders ship via UPS, USPS, and FedEx.
Orders received before 5:30 PM EST ship the same business day.
Typical delivery time is 1-5 business days.

30-Day Return Policy

Returns accepted within 30 days of delivery.
Parts must be new, unused, and in original packaging.
Installed parts are not returnable.
Return authorization is required before sending items back.

Need help with a return or order question?
Contact Us
Phone: 941-721-3000

Searchable Part Numbers

52939P, 8M0207794, 8M0052939, 889514A01, 814281A7, 879150T94

Searchable Terms

Mercury neutral safety switch, Mercury shift switch, Mercury shift position switch, Mercury neutral switch, Mercury outboard neutral safety switch, Mercury Pro XS shift switch, Mercury Verado shift switch, Verado neutral safety switch, Mercury 3.0L shift switch, Mercury DTS shift switch, MerCruiser neutral safety switch, MerCruiser shift switch, MerCruiser DTS switch, 8M0207794 switch, 8M0052939 switch, Pro Marine 52939P

Item#:

52939P

Cross Reference#:

8M0052939
8M0207794
814281A7
879150T94
889514A01

Manufacturer Item:

8M0207794

Manufacturer:

Pro Marine

Available:

In Stock

49.9500

Your Price:

42.95

Each

Qty:

Mercury Verado Gen A/B Power Steering Pump Reman Replacement

Pro Marine replacement pump for Gen A and Gen B Verado systems

Pro Marine Mercury Verado Power Steering

Pro Marine Mercury Verado Gen A / Gen B Reman Power Steering Pump 8M0134736P

The Pro Marine 8M0134736P Remanufactured Power Steering Pump is an aftermarket replacement for Mercury Verado Gen A and Gen B power steering systems. It cross references Mercury part numbers 8M0134359 and 8M0134736.

This replacement allows customers to service an existing Gen A or Gen B steering system without purchasing all the additional components required for a complete Gen C conversion.

Important: Installation requires reusing the original case from your existing power steering pump.

Warranty: 1 year. Warranty coverage is void if gelled power steering fluid is found inside the pump. See the important steering system inspection and warranty information below before installing your replacement.

IMPORTANT INFORMATION BEFORE REPLACING YOUR VERADO POWER STEERING PUMP

Why Mercury Verado Power Steering Pumps Fail

One of the primary causes of premature Verado power steering pump failure is overheating caused by restricted hydraulic fluid flow.

A problem we frequently encounter is Mercury power steering fluid becoming thick, gel-like, or contaminated. This material can accumulate inside the hydraulic steering system, particularly in the steering cylinder, restricting the movement of hydraulic fluid.

As the steering cylinder becomes restricted, the power steering pump must work harder to move hydraulic fluid through the system. This increased workload can cause the pump to overheat, operate under excessive strain, and eventually fail.

Replacing the Pump Alone May Not Fix the Problem

If the original pump failed because of restricted hydraulic flow or gelled steering fluid, installing another pump without addressing the underlying problem can cause the replacement pump to overheat and fail as well.

Before installing a replacement pump, inspect the steering cylinder, hoses, fluid reservoir, and hydraulic system for gelled fluid, contamination, or restrictions. Correct any problems before operating the replacement pump.

Watch Our Verado Power Steering Repair Video

Watch our video for information about Verado steering system problems and servicing the steering cylinder. Understanding the condition of the hydraulic system before replacing the pump can help prevent another failure.

Watch Pro Marine Verado power steering repair and steering cylinder service video

Watch Verado Power Steering Repair Video

IMPORTANT WARRANTY WARNING

WARRANTY WILL BE VOID IF GELLED POWER STEERING FLUID IS FOUND INSIDE THE PUMP.

The replacement pump must be installed into a properly functioning hydraulic steering system. Gelled fluid, contamination, or restrictions in the steering cylinder or hydraulic lines must be addressed before installing the replacement pump. Failure to correct these conditions can result in overheating and premature pump failure.

VERADO STEERING CYLINDER SERVICE AND REPAIR

Parts and Tools for Servicing Your Verado Steering Cylinder

If gelled power steering fluid or restricted hydraulic flow contributed to the failure of your original pump, the steering cylinder should be inspected and serviced as necessary before installing a replacement.

Pro Marine offers steering cylinder seal kits, replacement seals, service tools, and remanufactured steering cylinders to help repair the underlying steering system problem. Verify component compatibility with your steering cylinder before ordering.

Pro Marine Verado Steering Cylinder Seal Kit

Part Number: 2700P

Replacement seal kit for servicing compatible Mercury Verado hydraulic steering cylinders. Replaces Mercury 896173A01.

View Steering Cylinder Seal Kit

Pro Marine Verado Steering Cylinder Mounting Seal

Part Number: 880667

Replacement steering cylinder seal for compatible Mercury Verado steering systems. Replaces Mercury 8M0155530.

View Steering Cylinder Seal

Mercury Verado Remanufactured Steering Cylinder

Part Number: 896500R01

Remanufactured steering cylinder for compatible Mercury Verado and Racing outboard steering applications. An alternative when the existing steering cylinder requires replacement.

View Reman Steering Cylinder

Verado Steering Cylinder End Cap Removal Tool

Part Number: 8M0078614

Spanner tool used for steering cylinder end cap removal during compatible Mercury Verado steering cylinder service.

View End Cap Removal Tool

Recommended Before Installing Your Replacement Pump

Inspect the existing steering cylinder for restrictions and contaminated or gelled fluid. Repair or replace components as needed, clean the hydraulic system using the appropriate service procedure, and confirm proper fluid circulation before operating the replacement pump.

Watch Our Verado Steering System Repair Video →

PRO MARINE TECHNICAL RESOURCES

Mercury Verado Power Steering Technical Center

Need help identifying your Verado power steering generation, selecting replacement components, or determining whether to repair your existing Gen A / Gen B system or upgrade to Gen C?

Verado Power Steering Technical Center

Explore Pro Marine's technical information, steering system components, installation resources, and parts for Mercury Verado hydraulic power steering systems.

Visit Verado Power Steering Tech Center

Gen A / Gen B to Gen C Conversion Guide

Considering a Gen C upgrade instead of replacing your existing Gen A or Gen B pump? Review the conversion requirements and additional components needed for the upgrade.

View Gen A / B to Gen C Conversion

Compatible Applications

System	Application	Fitment Note
Mercury Verado Gen A	Power steering pump replacement	Confirm current pump generation and reuse the existing case.
Mercury Verado Gen B	Power steering pump replacement	Replacement option for Gen A / Gen B pump service where Mercury 8M0134736 is being replaced.

Important Fitment and Installation Note

This Pro Marine replacement pump requires the original case from your existing pump. Before ordering, identify whether your boat has a Gen A, Gen B, or Gen C Verado power steering system.

Compare your existing pump number with the cross references below. This product is intended for the specified Gen A / Gen B replacement applications and is not a direct Gen C replacement.

Before installation: Check the hydraulic system for gelled fluid, contaminated fluid, steering cylinder restrictions, or other conditions that may have contributed to the original pump failure.

OEM and Cross Reference Numbers

Pro Marine Item Number	8M0134736P
Mercury OEM Number	8M0134736
Cross Reference Numbers	8M0134359, 8M0134736
Brand	Pro Marine
Warranty	1 year; void if gelled fluid is found in the pump

Gen A / Gen B Replacement vs. Gen C Conversion

Replacing the existing Gen A / Gen B pump may be a more economical option than converting the entire steering system to Gen C. A complete conversion can require several additional components.

Gen C Conversion Item	Previously Listed Cost
Pump Assembly	$1,050.00
Adapter Hose	$217.88
Power Steering Harness with Fuse	$84.24
Signal Wire Conversion	$50.23
Automatic Power Source for Applicable Multi-Engine Systems	$268.43

Costs shown are historical reference amounts from this product's existing description and are subject to change. Actual conversion requirements vary by steering configuration.

Compare Gen A / B Replacement and Gen C Conversion

Related Verado Power Steering Parts

Explore additional Mercury Verado steering system components for maintenance, repair, and system configuration.

Automatic Power Source

Mercury Verado automatic power source for applicable multi-engine steering systems.

View 8M0149746

Signal Drive Harness Assembly

Mercury power steering signal drive harness assembly for Verado steering system service.

View 8M0026568

Standard Power Steering Helm

Mercury Verado non-tilt hydraulic power steering helm.

View 8M0137449

Tilt Power Steering Helm

Mercury Verado hydraulic power steering helm with tilt.

View 8M0137451

Gen B Damper Hose Kit

Mercury Verado Gen B power steering damper hose kit for hydraulic steering service.

View 897643A01

Mercury Power Steering Fluid

Mercury full synthetic power steering fluid for applicable Verado hydraulic steering systems.

Special Order Verado Steering Hoses

The following Mercury Verado steering hoses are special-order items. Call Pro Marine USA at 941-721-3000 to order. Confirm the required hose length and steering configuration before purchasing.

Helm to Power Steering Pump

Special Order — Must Call to Order

8M0150604 — 2 Foot
8M0150605 — 3 Foot
8M0150606 — 4 Foot
8M0150607 — 5 Foot
8M0150608 — 6 Foot
8M0150610 — 7 Foot
8M0150612 — 8 Foot
8M0150613 — 10 Foot
8M0150614 — 12 Foot
8M0150615 — 14 Foot
8M0150616 — 16 Foot
8M0150617 — 18 Foot
8M0150618 — 20 Foot
8M0150619 — 22 Foot
8M0150620 — 24 Foot
8M0150621 — 26 Foot
8M0150622 — 28 Foot
8M0150623 — 30 Foot
8M0150624 — 32 Foot

Cylinder to Helm

Special Order — Must Call to Order

8M0167281 — 2 Foot
8M0167282 — 3 Foot
8M0167283 — 4 Foot
8M0167284 — 5 Foot
8M0167285 — 6 Foot
8M0167286 — 7 Foot
8M0167287 — 8 Foot
8M0167288 — 10 Foot
8M0167289 — 12 Foot
8M0167290 — 14 Foot
8M0167291 — 16 Foot
8M0167292 — 18 Foot
8M0167293 — 20 Foot
8M0167294 — 22 Foot
8M0167295 — 24 Foot
8M0167296 — 26 Foot
8M0167297 — 28 Foot
8M0167298 — 30 Foot
8M0167299 — 32 Foot

Key Features and Benefits

Pro Marine Remanufactured Replacement: Aftermarket replacement for compatible Mercury Verado Gen A and Gen B power steering pumps.
OEM Cross References: Mercury 8M0134359 and 8M0134736.
Repair Existing Steering System: Provides a replacement option without purchasing every component required for a Gen C conversion.
Reuse Existing Pump Case: Installation requires the original case from the current pump assembly.
1-Year Warranty: Subject to warranty conditions. Coverage is void if gelled fluid is found inside the pump.
Steering Cylinder Repair Resources: Linked seal kits, replacement cylinder, and end cap removal tool.
Repair Video: Direct link to Pro Marine's Verado power steering repair video.
Technical Support Resources: Access to the Verado Power Steering Technical Center and Gen A / B to Gen C conversion guide.

Product Details

Item Number	8M0134736P
Product Type	Verado Power Steering Pump Replacement
Brand	Pro Marine
OEM or Aftermarket	Aftermarket — Remanufactured
Required Reuse Item	Original Case from Existing Pump
Warranty	1 Year
Warranty Exclusion	Warranty void if gelled power steering fluid is found inside the pump.

Frequently Asked Questions

Is this a replacement for Mercury Verado Gen A and Gen B power steering pumps?

Yes. Pro Marine 8M0134736P is an aftermarket replacement for compatible Mercury Verado Gen A and Gen B power steering pumps. It cross references Mercury 8M0134359 and 8M0134736.

Do I need to reuse my old pump case?

Yes. This replacement requires the original case from your existing power steering pump.

Why do Mercury Verado power steering pumps overheat?

One common cause is restricted hydraulic fluid flow. We frequently encounter systems where power steering fluid has become thick or gel-like and accumulated inside the steering cylinder. These restrictions can force the pump to work harder, leading to overheating and premature failure.

Can gelled power steering fluid damage a replacement pump?

Yes. If gelled fluid or a restriction remains in the hydraulic steering system, a replacement pump can experience the same excessive workload and overheating that damaged the original pump.

Should I inspect the steering cylinder before replacing the pump?

Yes. Inspect the steering cylinder and hydraulic system for gelled fluid, contamination, and restrictions. Correct any problems before operating the replacement pump.

Does gelled power steering fluid void the pump warranty?

Yes. The warranty is void if gelled power steering fluid is found inside the pump. Inspect and service the hydraulic system before installation to help prevent repeat failure.

Does Pro Marine have a video explaining Verado steering problems?

Yes. Watch our Verado Power Steering Repair Video for additional information about steering system service.

Can I rebuild my existing Verado steering cylinder?

Depending on the cylinder's condition and compatibility, repair may be possible using the Pro Marine 2700P Steering Cylinder Seal Kit . Inspect the cylinder for internal damage before deciding whether to repair or replace it.

Is a remanufactured steering cylinder available?

Yes. Pro Marine offers the 896500R01 Remanufactured Verado Steering Cylinder for compatible applications.

Should I replace my Gen A / Gen B pump or upgrade to Gen C?

Replacing the existing pump may be the simpler option when the remainder of the steering system is serviceable. A Gen C conversion requires additional components and configuration checks. Review our Gen A / Gen B to Gen C Conversion Guide to compare the options.

Where can I find Verado power steering technical information?

Visit the Pro Marine Verado Power Steering Technical Center for steering system information, replacement parts, and technical resources.

Are some Verado steering hoses special order?

Yes. Various helm-to-pump and cylinder-to-helm hose lengths are special-order items. Call Pro Marine USA at 941-721-3000 to confirm availability and order.

Dealer Discounts & Store Policies

Wholesale Marine Parts Pricing

Pro Marine USA supplies genuine OEM and aftermarket marine engine parts, hydraulic steering components, and maintenance products to professional marine technicians, repair shops, dealerships, boat builders, and retail customers.

Qualified marine businesses can apply for a Pro Marine dealer account to access wholesale pricing on eligible products.

Apply for Dealer Pricing

Shipping Information

Free shipping on orders over $100 within the continental United States.
In-stock orders received before 5:30 PM EST ship the same business day, Monday–Friday.
Shipping options available through UPS, USPS, and FedEx.
Typical delivery time is 1–5 business days.
Shipping times may vary based on destination, carrier service, and availability.

30-Day Return Policy

Eligible returns are accepted within 30 days of delivery.
Products must be new, unused, and in original packaging.
Installed parts are not returnable.
Return authorization is required before returning merchandise.

Power Steering Pump Warranty

1-YEAR WARRANTY — GELLED FLUID EXCLUSION

This Pro Marine replacement pump includes a 1-year warranty.

Warranty coverage will be void if gelled power steering fluid is found inside the pump.

Customers should inspect the hydraulic steering system, including the steering cylinder, for fluid contamination and restrictions before installing the replacement pump. Repair any underlying hydraulic problems before operating the replacement.

Need Help With Your Verado Power Steering System?

Have questions about pump compatibility, steering cylinder repairs, or Gen C conversions?

Contact Pro Marine USA or call 941-721-3000.

Searchable Part Numbers

8M0134736P, 8M0134736, 8M0134359, 2700P, 896173A01, 880667, 8M0155530, 896500R01, 8M0078614, 8M0149746, 8M0026568, 8M0137449, 8M0137451, 897643A01, 858077, 858002K01, 858077KC1, 858077K01

Searchable Terms

Mercury Verado power steering pump, Pro Marine Verado power steering pump, Verado Gen A power steering pump, Verado Gen B power steering pump, Mercury Verado remanufactured pump, Mercury Verado replacement steering pump, Verado hydraulic steering pump, Mercury Verado steering pump overheating, Verado steering pump failure, Mercury power steering fluid gel, gelled Mercury steering fluid, Verado gelled hydraulic fluid, Mercury Verado steering cylinder clogged, Verado steering cylinder restriction, Verado steering cylinder rebuild, Verado steering cylinder seal kit, Verado steering cylinder mounting seal, Mercury Verado steering cylinder end cap tool, Mercury Verado reman steering cylinder, Verado steering cylinder repair video, Verado power steering repair, Mercury Verado hydraulic steering problems, Verado Gen A to Gen C conversion, Verado Gen B to Gen C conversion, Mercury Verado power steering technical center, Verado hydraulic steering system maintenance, Pro Marine Verado steering components

Item#:

8M0134736P

Cross Reference#:

8M0134359
8M0134736

Manufacturer Item:

8M0134736

Manufacturer:

Pro Marine

Available:

In Stock

Your Price:

875.25

Each

Qty:

Mercury MerCruiser Oil Drain Plug O-Ring 863006

OEM Oil Drain Plug Seal for Mercury & MerCruiser Engines

OEM Mercury & MerCruiser Oil Drain Plug Seal

Mercury MerCruiser Oil Drain Plug O-Ring 863006

The Mercury MerCruiser 863006 Oil Drain Plug O-Ring is an OEM replacement seal used across a wide range of Mercury outboards, Verado engines, MerCruiser sterndrives, and inboard marine engines.

This O-ring seals the oil drain plug assembly and helps prevent oil leaks during operation and after routine oil service.

Fitment Overview

OEM part number 863006 is used across numerous Mercury and MerCruiser oil drain plug applications. Unlike the drain plug assembly itself, this seal is shared across multiple engine families and marine platforms.

This includes Mercury EFI outboards, Verado engines, V6/V8/V10 outboards, MerCruiser sterndrive engines, and select inboard marine engines.

Compatibility

Application	Models / Engine Families
Mercury EFI 4-Stroke Outboards	65HP through 150HP EFI models
Mercury V6 Outboards	3.4L V6 175HP and 200HP
Mercury V8 Outboards	4.6L V8 200HP through 300HP
Mercury V10 Outboards	350HP 400HP 425HP models
Mercury Racing	300R 450R 500R Verado applications
MerCruiser Sterndrive Engines	Multiple GM-based marine engine platforms
MerCruiser Inboard Engines	Select inboard oil drain plug applications

Always verify fitment using your engine serial number or existing part number before ordering.

Associated Oil Drain Plug Assemblies

Important: If your oil drain plug assembly is cracked, damaged, stripped, or leaking around the housing itself, replacing only the O-ring may not solve the problem.

In those cases, replacing the complete drain plug assembly is recommended:

View Mercury 8M0112869 Oil Drain Plug Assembly

Part Numbers and Cross References

Type	Part Number
Mercury OEM	863006
Associated Drain Plug Assembly	8M0112869
Related Drain Plug Assemblies	8M0064964, 8M0045813

What This O-Ring Is Used For

This O-ring seals the oil drain plug assembly to prevent oil leaks and seepage. Over time, heat cycles, oil exposure, and repeated removal during oil changes can flatten or damage the seal.

Seals engine oil drain plug assemblies
Helps prevent oil leaks after service
OEM Mercury and MerCruiser replacement seal
Often replaced during routine oil maintenance

Replacing the O-ring during oil service is often the easiest and most affordable way to prevent future leaks.

System Function and Connections

System Type: Engine lubrication / oil drain system
Component Type: Oil drain plug O-ring seal
Associated Components: Oil drain plug assemblies and oil pan drain systems
Location: Oil drain plug sealing surface

FAQ

What does the 863006 O-ring fit?
It fits many Mercury and MerCruiser oil drain plug applications including EFI outboards, Verado engines, V6/V8/V10 outboards, and select sterndrive and inboard engines.

Can I replace just the O-ring instead of the entire drain plug assembly?
Yes. If the drain plug assembly itself is still in good condition and only the seal is leaking, replacing the O-ring is often the simplest repair.

When should I replace the full drain plug assembly?
Replace the entire assembly if the plug is cracked, stripped, damaged, or leaking around the plug body itself.

What drain plug assembly commonly uses this O-ring?
One common associated assembly is the Mercury 8M0112869 Oil Drain Plug Assembly .

Dealer Discounts & Store Policies

Dealer / Marine Industry Discounts

Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.

Apply for a Dealer Account

Shipping Policy

Free shipping on orders over $100 (continental U.S.).
Orders ship via UPS, USPS, and FedEx.
Orders received before 5:30 PM EST ship the same business day.
Typical delivery time is 1–5 business days.

30-Day Return Policy

Returns accepted within 30 days of delivery.
Items must be new, unused, and in original packaging.
Return authorization is required before sending items back.

Need help with a return or order question?
Contact Us
Phone: 941-721-3000

Searchable Part Numbers

863006, Mercury oil drain plug o-ring, Mercury oil plug seal, MerCruiser oil drain seal, Mercury Verado oil plug o-ring, Mercury V6 oil seal, Mercury V8 oil drain plug seal, Mercury V10 oil plug seal, 8M0112869, Mercury oil drain plug gasket

Item#:

863006

Manufacturer Item:

863006

Manufacturer:

Mercury Marine

Available:

In Stock

Your Price:

2.59

Each

Qty:

Hydraulic Helm Steering Fluid

Mercury

Item#:

858078Q01

Cross Reference#:

826485A1
858078Q01
862014Q1

Manufacturer Item:

858078Q01

Manufacturer:

Mercury Marine

Available:

In Stock

Your Price:

30.99

Each

Qty:

Tilt Helm Hi Performance 2.0ci

Uflex Silver Steer 1500 psi w/Tilt Mechanism

Item#:

UP33T-SVS-X70

Manufacturer Item:

UP33T-SVS-X40

Manufacturer:

Uflex

Available:

Special Order

1203.2800

Your Price:

0.00

Each

Lifting Eye, Engine

Mercury/Forc/Sportjet/Honda

Item#:

904

Cross Reference#:

18-9896
47448A1
75132
878232
90455
90455T
90455T1
904551

Manufacturer Item:

904551

Manufacturer:

Pro Marine

Available:

In Stock

Your Price:

47.41

Each

Qty:

Lifting Eye, Engine OE

Mercury/Forc/Sportjet/Honda

Item#:

904-1

Cross Reference#:

47448A1
75132
878232
90455
90455T
90455T1
904551

Manufacturer Item:

904551

Manufacturer:

Mercury Marine

Available:

In Stock

Your Price:

57.99

Each

Qty:

Drive Gear 9 Tooth

Nissan Tohatsu Suzuki DT30/40, DT115-140

Item#:

DV512

Cross Reference#:

31320-94400
31320-96300
5033146

Manufacturer:

Arco

Available:

In Stock

Your Price:

55.12

Each

Qty:

Yamaha F90 F115 Mercury 115 EFI Vertex .010 Piston 24228025

.25mm Oversize Vertex Piston for Yamaha F115 & Mercury 115 EFI

Vertex Yamaha / Mercury 4-Stroke .010 Oversize Piston Kit

Yamaha F90-F115 & Mercury 115 EFI Vertex .010 Oversize Piston Kit - 24228025

The Vertex 24228025 Piston Kit is a .010 oversize / .25mm oversize piston for select Yamaha four-stroke and Mercury 115HP EFI outboards.

Verified engine families include extensive Yamaha F115 and LF115 applications, select Yamaha F75 and F90 engines, and select Mercury 115HP EFI four-stroke outboards.

This piston is part of the same engine family as the Yamaha 60C-W1164 and 68V-W1164 piston assemblies and Mercury 880895 piston assemblies.

IMPORTANT - .010 / .25MM OVERSIZE PISTON

This is NOT a standard-size piston.

The cylinder must be measured and properly machined for the .010 / .25mm oversize piston before installation.

Do not install this piston into a standard 79.00mm bore.

Piston Size & Application

Specification	Details
Brand	Vertex
Part Number	24228025
Piston Size	.010 Oversize
Metric Oversize	.25mm Oversize
Standard Bore Reference	79.00mm

OEM & Cross Reference Piston Family

Brand / Type	Part Number
Vertex	24228025
First OEM Reference	60C-W1164-10-00
Yamaha OEM Family	60C-W1164-00-00
Yamaha OEM Family	60C-W1164-01-00
Yamaha OEM Family	68V-W1164-00-00
Yamaha OEM Family	68V-W1164-01-00
Yamaha OEM Family	68V-W1164-02-00
Mercury OEM Family	880895A05
Mercury OEM Family	880895A14
Mercury OEM Family	880895T1

Yamaha Outboard Fitment

Engine Family	Verified Applications
Yamaha F75	F75TLRB - 2003 and F75TLRC - 2004.
Yamaha F90	F90TJRB / F90TLRB - 2003 and F90TJRC / F90TLRC - 2004.
Yamaha F115 - Early Models	F115TLRY / F115TXRY - 2000, F115TLRZ / F115TXRZ - 2001, F115TJRA / F115TLRA / F115TXRA - 2002, F115TJRB / F115TLRB / F115TXRB - 2003, F115TJRC / F115TLRC / F115TXRC - 2004, and F115TJRD / F115TLRD / F115TXRD - 2005.
Yamaha F115 - Later Models	F115JA, F115LA, F115TJR, F115TLR, F115TXR and F115XA, including the supplied 04, 011, 061 and 0405-0411 suffix variants.
Yamaha LF115	LF115TXRY - 2000, LF115TXRZ - 2001, LF115TXRA - 2002, LF115TXRB - 2003, LF115TXRC - 2004, LF115TXRD - 2005, plus later LF115TXR and LF115XA applications.

Mercury 115HP EFI Fitment

Engine	Serial Number Range
Mercury 115HP EFI	0T178500 thru 0T800999
Mercury 115HP EFI	0T801000 thru 1B226999
Mercury 115HP EFI	1B227000 thru 1B366822

Measure Before Ordering

Oversize piston selection should always be based on actual cylinder measurements.

If the bore remains within standard-size limits, use a 79.00mm standard piston. If machining is required, choose the correct .010 or .020 piston based on the finished bore size.

Other Piston Options

Vertex Standard Piston - 24228STD

Size: 79.00mm Standard

Standard-size Vertex piston for cylinders that remain within standard bore specifications.

First OEM: 68V-W1164-02-00

View Vertex Standard Piston

Vertex .020 Oversize Piston - 24228050

Size: .020 / .50mm Oversize

Larger oversize Vertex piston option where cylinder condition requires machining beyond .010.

View Vertex .020 Piston

Wiseco Standard Piston - 3207PS

Size: 79.00mm Standard

Alternate Wiseco standard-size piston for compatible Yamaha F115 and Mercury 115 EFI applications.

View Wiseco Standard Piston

Wiseco .020 Oversize Piston - 3207P2

Size: 79.5mm / .020 Oversize

Wiseco .020 oversize alternative for correctly machined cylinders.

View Wiseco .020 Piston

Yamaha OEM Piston Ring Options

Yamaha OEM Standard Ring Kit - 11605

Size: Standard 79mm

First OEM: 6D8-11603-00-00

View Standard OEM Rings

Yamaha OEM .25mm Oversize Ring Kit - 11606

Size: .25mm / approximately .010 Oversize

First OEM: 6D8-11604-00-00

This is the OEM Yamaha oversize ring option to review for the corresponding .25mm / .010 oversize piston configuration.

View .25mm OEM Rings

Replacement Cylinder Sleeves

If cylinder damage cannot be corrected with an oversize bore, replacement cylinder sleeves may be required.

Advanced Sleeve 1185SC

Straight 4-stroke replacement sleeve for compatible powerhead rebuilds.

Verify sleeve dimensions and block machining requirements before installation.

View 1185SC Sleeve

Advanced Sleeve 1185SA

Alternate straight 4-stroke cylinder sleeve option for compatible Yamaha / Mercury engine rebuilding.

Compare sleeve dimensions to the block before machining.

View 1185SA Sleeve

Main & Connecting Rod Bearings

Pro Marine Main Bearing Set - 4CYLSSMAIN

Complete one-size crankshaft main bearing set for compatible Yamaha four-cylinder engines.

First OEM Reference: 6D8-11416-00-00

Eliminates factory Yamaha bearing color-code selection and Plastigauge sizing.

View Main Bearing Set

Pro Marine F115 Rod Bearing Set - 4CYLSSROD

Complete one-size connecting rod bearing set for compatible Yamaha F115 four-stroke applications.

First OEM Reference: 68V-11656-00-00

Eliminates the factory Yamaha rod-bearing color selection process.

View Rod Bearing Set

Complete Powerhead Gasket Kit

Pro Marine Powerhead Gasket Kit - 6803

Complete gasket kit for compatible Yamaha F75-F115 powerhead rebuilds.

Recommended when the engine is disassembled for piston replacement, cylinder machining, bearing replacement or other major internal repairs.

OEM Families: 6D8-W0001, 67F-W0001 and 68V-W0001

View Powerhead Gasket Kit

Piston Size Guide

Finished Cylinder Size	Piston Options
79.00mm Standard	Vertex 24228STD or Wiseco 3207PS
.25mm / .010 Oversize	Vertex 24228025
.50mm / .020 Oversize	Vertex 24228050 or Wiseco 3207P2
Cylinder Requires Sleeving	Inspect 1185SA / 1185SC sleeve options and machine the finished cylinder to the specification required by the selected piston.

Shop Yamaha Engine Rebuild Parts by Model

Find additional pistons, rings, bearings, valves, gaskets, sleeves and internal engine components in the Yamaha Engine Rebuild Parts by Model section.

Shop Yamaha Engine Rebuild Parts by Model

When to Use a .010 Oversize Piston

A .010 oversize piston can be used when cylinder wear or damage requires machining beyond the standard bore but does not require a full .020 overbore.

The cylinder should be measured for diameter, taper and out-of-round before machining. The finished bore and piston-to-wall clearance should follow the piston manufacturer's specifications.

Parts to Inspect During an Engine Rebuild

Cylinder diameter and bore condition
Cylinder taper and out-of-round
Piston-to-wall clearance
Piston rings and ring end gap
Connecting rod condition
Connecting rod bolts
Connecting rod bearings
Crankshaft main bearings
Crankshaft journals
Cylinder head and valves
Valve stem seals
Oil passages and lubrication system
Powerhead gaskets and seals

Key Features and Benefits

Vertex oversize piston kit
Vertex part number 24228025
.010 / .25mm oversize
Fits extensive Yamaha F115 and LF115 applications
Fits select Yamaha F75 and F90 applications
Fits select Mercury 115HP EFI engines
Standard Vertex piston linked above
Vertex .020 piston linked above
Wiseco standard and .020 piston options linked above
Matching Yamaha OEM .25mm oversize rings linked above
Replacement cylinder sleeves linked above
Main and connecting rod bearings linked above
Complete powerhead gasket kit linked above

FAQ

What size is Vertex 24228025?
It is a .010 / .25mm oversize piston.

Is this a standard-size piston?
No. The standard Vertex piston is the 24228STD 79.00mm piston linked above.

Can I install this piston in a standard 79mm cylinder?
No. The cylinder must be correctly machined and finished for the .25mm / .010 oversize piston.

Does this fit Yamaha F115?
Yes. The supplied engine fitment includes extensive F115 and LF115 applications.

Does it fit Mercury 115 EFI?
Yes. Supplied Mercury fitment includes 0T178500 thru 0T800999, 0T801000 thru 1B226999, and 1B227000 thru 1B366822.

What rings go with the .010 oversize piston?
The Yamaha OEM 11606 .25mm oversize ring kit is linked above for the corresponding oversize piston configuration.

Do you have a .020 oversize Vertex piston?
Yes. The Vertex 24228050 is the .020 oversize option.

Do you have Wiseco piston options?
Yes. The Wiseco 3207PS standard 79mm and 3207P2 .020 / 79.5mm pistons are linked above.

Are cylinder sleeves available?
Yes. Advanced Sleeve 1185SA and 1185SC options are linked above.

What main bearings are available?
The Pro Marine 4CYLSSMAIN main bearing set is linked above.

What connecting rod bearings are available?
The Pro Marine 4CYLSSROD rod bearing set is linked above.

Is a complete gasket kit available?
Yes. The Pro Marine 6803 Powerhead Gasket Kit is linked above.

Dealer Discounts & Store Policies

Dealer / Marine Industry Discounts

Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.

Apply for a Dealer Account

Shipping Policy

Free shipping on orders over $100 continental U.S.
Orders received before 5:30 PM EST ship the same business day.
Typical delivery time is 1-5 business days.

30-Day Return Policy

Returns accepted within 30 days of delivery.
Parts must be new, unused, and in original packaging.
Installed parts are not returnable.
Return authorization is required before sending items back.

Need help with an order or return?
Contact Pro Marine
Phone: 941-721-3000

Searchable Terms

24228025, Vertex 24228025, Yamaha F115 .010 piston, Yamaha F115 .25mm piston, Yamaha F115 oversize piston, Yamaha LF115 .010 piston, Yamaha F90 oversize piston, Mercury 115 EFI .010 piston, Mercury 115 oversize piston, Yamaha .010 piston, Yamaha .25mm piston, 60C-W1164-10-00, 60C-W1164-00-00, 60C-W1164-01-00, 68V-W1164-00-00, 68V-W1164-01-00, 68V-W1164-02-00, 880895A05, 880895A14, 880895T1, Yamaha 60C-W1164, Yamaha 68V-W1164, Mercury 880895, 24228STD, Vertex standard piston, 24228050, Vertex .020 piston, 3207PS, Wiseco standard piston, 3207P2, Wiseco .020 piston, 11605, Yamaha standard rings, 11606, 6D8-11604-00-00, Yamaha .010 rings, 1185SA, 1185SC, Yamaha F115 cylinder sleeve, 4CYLSSMAIN, Yamaha F115 main bearings, 4CYLSSROD, Yamaha F115 rod bearings, 6803, Yamaha F115 gasket kit, Yamaha F115 rebuild, Mercury 115 EFI rebuild

Item#:

24228025

Cross Reference#:

60C-W1164-10-00
60C-W1164-11-00
68V-W1164-10-00
68V-W1164-11-00
68V-W1164-12-00
880895A12
880895A16
880895T10

Manufacturer Item:

68V-W1164-12-00

Manufacturer:

Vertex

Available:

In Stock

Your Price:

145.22

Each

Qty:

Yamaha F75-F130 Mercury 115 EFI Connecting Rod Bolt RB115

Rod Bolt Replaces Yamaha K1C-A3275-00-00 and Mercury 880896

Yamaha / Mercury Connecting Rod Bolt

Yamaha F75-F130 & Mercury 115 EFI Connecting Rod Bolt - RB115

The RB115 Connecting Rod Bolt is used in select Yamaha F75, F90, F115, F130, VF90 and VF115 four-stroke outboards, as well as select Mercury 115HP EFI engines.

This connecting rod bolt cross references Yamaha K1C-A3275-00-00 and Mercury 880896.

If you are rebuilding one of the compatible Yamaha engines, Pro Marine also stocks the matching F75SSROD one-size connecting rod bearing set, linked below.

OEM & Cross Reference Numbers

Brand / Type	Part Number
Pro Marine Item	RB115
Yamaha OEM	K1C-A3275-00-00
Mercury OEM	880896

Yamaha Outboard Fitment

Yamaha uses this connecting rod bolt across several generations of four-cylinder four-stroke outboards. Verified applications include F75, F90, F115, F130, LF115, LF130, VF90 and VF115 engine families.

Engine Family	Verified Applications
Yamaha F75	F75LA, F75LB, F75TLR, F75XB and related suffix configurations.
Yamaha F90	F90JA, F90JB, F90LA, F90LB, F90LB2, F90LB3, F90TJR, F90TLR, F90TXR, F90XA, F90XB and F90XB2.
Yamaha F115	F115JA, F115JB, F115LA, F115LB, F115LB2, F115LB3, F115TJR, F115TLR, F115TXR, F115XA, F115XB and F115XB2.
Yamaha LF115	LF115TXR, LF115XA, LF115XB, LF115XB2 and related counter-rotation configurations.
Yamaha F130 / LF130	F130LA, F130XA and LF130XA applications.
Yamaha VF90 SHO	VF90LA, VF90LB, VF90XA, VF90XB and related V MAX SHO variants.
Yamaha VF115 SHO	VF115LA, VF115LB, VF115XA, VF115XB and related V MAX SHO configurations.

Detailed Yamaha F115 Coverage

The supplied application information includes Yamaha F115 fitment from early F115 four-stroke models through later-generation engines.

Model Family	Coverage
F115TLR / F115TXR	Includes 2000, 2001, 2002, 2003, 2004, 2005 and later applications.
F115TJR	Includes 2002-2005 and later TJR applications.
F115JA / LA / XA	Later-generation F115 applications and associated suffix configurations.
F115JB / LB / XB	Later F115 engine families including multiple 2020-2023 model-code variants.
LF115	Counter-rotation LF115TXR, LF115XA and later LF115XB families.

Mercury 115HP EFI Fitment

Mercury also uses the 880896 connecting rod bolt on select 115HP EFI four-stroke applications. The supplied Mercury catalog information identifies the following serial-number ranges:

Engine	Serial Range
Mercury 115HP EFI	0T178500 thru 0T800999
Mercury 115HP EFI	0T801000 thru 1B226999
Mercury 115HP EFI	1B227000 thru 1B366822

Important Fitment Note:

Connecting rod bolts can change within the same horsepower family. Do not order by horsepower alone.

For Yamaha applications, verify the engine model and confirm that the connecting rod assembly calls for K1C-A3275-00-00.

For Mercury applications, verify the engine serial number and confirm that the engine calls for 880896.

Matching Yamaha Connecting Rod Bearing Set

Rebuilding a Yamaha F75-F115 engine? Pro Marine offers a matching one-size connecting rod bearing set that eliminates the traditional Yamaha color-code selection process.

Pro Marine Yamaha F75-F115 Connecting Rod Bearing Set - F75SSROD

Pro Marine one-size connecting rod bearing set for compatible Yamaha four-stroke engines. This bearing system eliminates the need to select individual factory bearing colors.

When rebuilding the connecting rods, inspect the rod bolts and bearings together before reassembly.

View Yamaha Connecting Rod Bearing Set

Yamaha Engine Rebuild & Maintenance Resources

Need more than the connecting rod bolt? Use the Pro Marine Yamaha sections below to find additional internal engine parts, complete maintenance kits and oil-change kits.

Yamaha Engine Rebuild Parts by Model

Shop pistons, rings, bearings, valves, gaskets, sleeves and other internal Yamaha powerhead components organized by engine family.

Shop Yamaha Engine Rebuild Parts

Yamaha 4-Stroke Service Kits

Shop Yamaha four-stroke maintenance kits with the commonly needed filters, spark plugs, seals and service components for scheduled maintenance.

Shop Yamaha Service Kits

Yamaha Oil Change Kits

Shop Yamaha oil-change kits organized by engine model, including engine oil and the service components needed for routine oil changes.

Shop Yamaha Oil Change Kits

What the Connecting Rod Bolt Does

Connecting rod bolts secure the connecting rod cap to the connecting rod. The assembly surrounds the crankshaft journal and must remain securely clamped while the piston and rod repeatedly change direction at engine speed.

Rod bolts are highly stressed engine fasteners. Correct bolt condition, installation procedure and tightening specification are critical during a powerhead rebuild.

Why Inspect or Replace Connecting Rod Bolts During a Rebuild?

Connecting rod bolts are subjected to repeated tensile loading every time the engine operates. During a powerhead rebuild, inspect the bolts and connecting rod assembly carefully for damage, thread problems, corrosion, stretching or other signs that could compromise clamping force.

Follow the applicable Yamaha or Mercury service procedure for the exact engine being assembled. Torque specifications and whether a fastener should be reused can vary by engine family.

Related Parts to Inspect During Connecting Rod Service

Connecting rod bearings
Connecting rod journals
Connecting rod and cap mating surfaces
Pistons and piston pins
Piston rings
Crankshaft main bearings
Crankshaft journals
Oil passages and lubrication system

Key Features and Benefits

Connecting rod bolt for Yamaha and Mercury applications
Pro Marine item number RB115
Replaces Yamaha K1C-A3275-00-00
Replaces Mercury 880896
Fits select Yamaha F75 four-stroke engines
Fits select Yamaha F90 four-stroke engines
Fits extensive Yamaha F115 / LF115 applications
Fits select Yamaha F130 / LF130 applications
Fits select Yamaha VF90 V MAX SHO engines
Fits select Yamaha VF115 V MAX SHO engines
Fits select Mercury 115HP EFI serial ranges
Matching Yamaha connecting rod bearing set linked above
Yamaha rebuild parts section linked above
Yamaha service and oil-change kit sections linked above

FAQ

What OEM numbers does RB115 replace?
RB115 cross references Yamaha K1C-A3275-00-00 and Mercury 880896.

Does RB115 fit Yamaha F75?
Yes. Verified applications include select F75LA, F75LB, F75TLR and F75XB configurations.

Does this fit Yamaha F90?
Yes. The supplied fitment includes extensive F90JA, F90JB, F90LA, F90LB, F90TJR, F90TLR, F90TXR, F90XA and F90XB applications.

Does it fit Yamaha F115?
Yes. This bolt is used across a broad range of Yamaha F115 engines, including early F115TLR / TXR models and later JA, JB, LA, LB, XA and XB engine families.

Does it fit Yamaha LF115?
Yes. Verified counter-rotation applications include LF115TXR, LF115XA, LF115XB and related variants.

Does this fit Yamaha F130?
Yes. The supplied fitment includes F130LA, F130XA and LF130XA.

Does RB115 fit Yamaha V MAX SHO?
Yes. Verified applications include select VF90 and VF115 V MAX SHO engine families.

Does this fit Mercury 115HP EFI?
Yes. The supplied Mercury fitment includes 0T178500 thru 0T800999, 0T801000 thru 1B226999, and 1B227000 thru 1B366822.

What connecting rod bearings go with this bolt?
For compatible Yamaha F75-F115 applications, the Pro Marine F75SSROD connecting rod bearing set is linked above.

Where can I find the other parts needed to rebuild my Yamaha?
Use the Yamaha Engine Rebuild Parts by Model section to shop internal engine components organized by application.

Do you have complete Yamaha maintenance kits?
Yes. Pro Marine has dedicated Yamaha 4-Stroke Service Kits and Yamaha Oil Change Kits .

Dealer Discounts & Store Policies

Dealer / Marine Industry Discounts

Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.

Apply for a Dealer Account

Shipping Policy

Free shipping on orders over $100 continental U.S.
Orders ship via UPS, USPS, and FedEx.
Orders received before 5:30 PM EST ship the same business day.
Typical delivery time is 1-5 business days.

30-Day Return Policy

Returns accepted within 30 days of delivery.
Parts must be new, unused, and in original packaging.
Installed parts are not returnable.
Return authorization is required before sending items back.

Need help with a return or order question?
Contact Us
Phone: 941-721-3000

Searchable Terms

RB115, K1C-A3275-00-00, Yamaha K1C-A3275-00-00, 880896, Mercury 880896, Yamaha rod bolt, Yamaha connecting rod bolt, Mercury rod bolt, Mercury connecting rod bolt, Yamaha F75 rod bolt, Yamaha F90 rod bolt, Yamaha F115 rod bolt, Yamaha LF115 rod bolt, Yamaha F130 rod bolt, Yamaha LF130 rod bolt, Yamaha VF90 rod bolt, Yamaha VF115 rod bolt, Yamaha V MAX SHO rod bolt, Mercury 115 EFI rod bolt, Mercury 115 four stroke rod bolt, F115TLR rod bolt, F115TXR rod bolt, F115JA rod bolt, F115JB rod bolt, F115LA rod bolt, F115LB rod bolt, F115XA rod bolt, F115XB rod bolt, F90LA rod bolt, F90LB rod bolt, F90XA rod bolt, F90XB rod bolt, VF90LA rod bolt, VF90XA rod bolt, VF115LA rod bolt, VF115XA rod bolt, F75SSROD, Yamaha F75 rod bearings, Yamaha F90 rod bearings, Yamaha F115 rod bearings, Yamaha engine rebuild parts, Yamaha 4 stroke service kit, Yamaha oil change kit

Item#:

RB115

Cross Reference#:

K1C-A3275-00-00
880896

Manufacturer Item:

880896

Manufacturer:

Mercury Marine

Available:

In Stock

Your Price:

3.39

Each

Qty:

Yamaha F75-F115 Mercury 75-115HP Head Gasket 67111-1

Genuine Yamaha OEM Cylinder Head Gasket | 67F-11181 Series

Genuine Yamaha OEM Cylinder Head Gasket

Yamaha F75-F115 & Mercury 75-115HP Cylinder Head Gasket - 67111-1

The Yamaha OEM 67111-1 Cylinder Head Gasket is a genuine Yamaha replacement head gasket used across a broad range of Yamaha four-stroke outboards including select F75, F80, F90, F100, F115 and LF115 engines.

This gasket family also appears in Mercury applications including select 75HP and 90HP carbureted engines and 75HP, 80HP, 90HP, 100HP and 115HP EFI four-stroke outboards.

It cross references Yamaha 67F-11181-00-00, 67F-11181-01-00, 67F-11181-02-00 and 67F-11181-03-00, Sierra 18-99094, and Mercury 804115 / 8041151.

OEM & Cross Reference Numbers

Brand / Type	Part Number
Pro Marine Item	67111-1
Yamaha OEM	67F-11181-00-00
Yamaha OEM	67F-11181-01-00
Yamaha OEM	67F-11181-02-00
Yamaha OEM	67F-11181-03-00
Sierra	18-99094
Mercury OEM	804115
Mercury OEM	8041151

Yamaha Outboard Fitment

Verified Yamaha applications span multiple generations of 75HP through 115HP four-stroke outboards, including early F80/F100 engines, later F75/F90 applications and extensive F115 / LF115 coverage.

Engine Family	Verified Applications
Yamaha F75	F75TLRB, F75TLRC, F75TLRD, F75TLR, F75TLR_041, F75LA and F75LA_0112.
Yamaha F80	F80TLRX, F80TLRY, F80TLRZ, F80TXRX, F80TXRY, F80TJRA, F80TJRB, F80TLRA and F80TLRB.
Yamaha F90	F90TJRB, F90TJRC, F90TJRD, F90TJR, F90TLRB, F90TLRC, F90TLRD, F90TLR, F90TXRD, F90TXR, F90JA, F90LA and F90XA, including related later suffix configurations.
Yamaha F100	F100TLRX, F100TLRY, F100TLRZ, F100TXRX, F100TXRY, F100TXRZ, F100TLRA, F100TLRB, F100TXRA and F100TXRB.
Yamaha F115	F115TLRY, F115TLRZ, F115TLRA/B/C/D, F115TXRY, F115TXRZ, F115TXRA/B/C/D, F115TJRA/B/C/D and later F115TJR, F115TLR, F115TXR, F115JA, F115LA and F115XA applications.
Yamaha LF115	LF115TXRY, LF115TXRZ, LF115TXRA/B/C/D, later LF115TXR and LF115XA counter-rotation applications.

Representative Yamaha Model-Year Coverage

Model Years	Examples
1999-2001	Select F80, F100, F115 and LF115 four-stroke applications.
2002-2003	Extensive F80, F90, F100, F115 and LF115 applications.
2004	F75TLRC, F90TJRC, F90TLRC, F115TJRC, F115TLRC, F115TXRC and LF115TXRC.
2005	F75TLRD, F90TJRD, F90TLRD, F90TXRD, F115TJRD, F115TLRD, F115TXRD and LF115TXRD.
Later Applications	Select F75, F90, F115 and LF115 applications listed in the supplied fitment as 2006 and later.

Mercury Outboard Fitment

Mercury catalog information supplied for this gasket confirms both carbureted and EFI four-stroke applications.

Mercury Engine	Serial Range
75HP Carb	0G960500 thru 0T800999
75HP Carb Bodensee	0G960500 thru 0T800999
90HP Carb	0G960500 thru 0T800999
75HP Carb	0T801000 thru 1B226999
75HP Carb Bodensee	0T801000 thru 1B226999
90HP Carb	0T801000 thru 1B226999
75HP EFI	1B172291 thru 1B366822
80HP EFI	1B227000 thru 1B366822
90HP EFI	1B172291 thru 1B366822
100HP EFI	1B227000 thru 1B366822
115HP EFI	0T178500 thru 0T800999
115HP EFI	0T801000 thru 1B226999
115HP EFI	1B172291 thru 1B366822
115HP EFI	1B227000 thru 1B366822

Important Fitment Note:

Cylinder head gasket fitment can vary within the same horsepower family. Do not order by horsepower alone.

For Yamaha applications, verify the complete engine model and confirm that the original head gasket cross references one of the 67F-11181 numbers listed above.

For Mercury applications, verify the engine serial number and confirm that the head gasket cross references 804115 or 8041151.

Head Gasket & Powerhead Rebuild Options

Pro Marine stocks both an aftermarket version of this individual cylinder head gasket and a complete powerhead gasket kit for compatible engines.

Pro Marine Cylinder Head Gasket - 67111

Pro Marine aftermarket replacement for compatible Yamaha and Mercury applications using the 67F-11181 / 804115 gasket family.

A cost-effective alternative when an OEM Yamaha gasket is not required.

View Pro Marine Head Gasket

Pro Marine Powerhead Gasket Kit - 6803

Rebuilding the complete engine? The 6803 powerhead gasket kit contains the major gaskets and sealing components used during compatible powerhead disassembly and reassembly.

This is usually the better choice for a complete rebuild rather than purchasing only the individual cylinder head gasket.

View Complete Powerhead Gasket Kit

What the Cylinder Head Gasket Does

The cylinder head gasket seals the mating surface between the cylinder head and engine block. It must maintain a seal around the combustion chambers while also separating oil and cooling passages where applicable.

A properly sealing head gasket is critical for maintaining cylinder compression and preventing combustion pressure, cooling water or engine oil from leaking between passages.

Common Signs of a Failed Head Gasket

Low compression in one or more cylinders
Overheating
Cooling-water intrusion into the cylinder
Combustion gases entering the cooling system
Visible gasket failure after cylinder-head removal
Corrosion or erosion around the combustion sealing surface
Uneven or damaged cylinder-head sealing surface

During Cylinder Head Service

When a cylinder head is removed, inspect both the cylinder head and block sealing surfaces before installing the new gasket. Check for corrosion, erosion, warpage and other damage that could prevent the new gasket from sealing correctly.

Follow the applicable Yamaha or Mercury service manual for bolt tightening sequence, torque specifications and any required inspection or machining procedures.

Individual Head Gasket or Complete Gasket Kit?

Repair	Recommended Option
Cylinder head is being removed only	Individual OEM Yamaha 67111-1 head gasket may be appropriate.
Need a lower-cost individual replacement	Consider the Pro Marine 67111 cylinder head gasket linked above.
Complete powerhead rebuild	Consider the Pro Marine 6803 powerhead gasket kit so the other disturbed engine gaskets are available during assembly.

Key Features and Benefits

Genuine Yamaha OEM cylinder head gasket
Fits select Yamaha F75 four-stroke engines
Fits select Yamaha F80 four-stroke engines
Fits select Yamaha F90 four-stroke engines
Fits select Yamaha F100 four-stroke engines
Fits extensive Yamaha F115 and LF115 applications
Fits select Mercury 75HP carbureted engines
Fits select Mercury 90HP carbureted engines
Fits select Mercury 75HP, 80HP, 90HP and 100HP EFI engines
Fits select Mercury 115HP EFI applications
Replaces Yamaha 67F-11181-00-00 through 67F-11181-03-00
Cross references Sierra 18-99094
Cross references Mercury 804115 / 8041151
Pro Marine aftermarket gasket linked above
Complete Pro Marine powerhead gasket kit linked above

FAQ

Is 67111-1 a genuine Yamaha head gasket?
Yes. This listing is for the genuine Yamaha OEM version. The Pro Marine aftermarket 67111 gasket is linked above.

What Yamaha OEM numbers does this gasket replace?
It cross references 67F-11181-00-00, 67F-11181-01-00, 67F-11181-02-00 and 67F-11181-03-00.

Does this fit Yamaha F75?
Yes. Verified applications include select F75TLR and F75LA models.

Does this fit Yamaha F90?
Yes. The supplied fitment includes numerous F90 TJR, TLR, TXR, JA, LA and XA applications.

Does this fit Yamaha F100?
Yes. Verified applications include several F100TLR and F100TXR engines from 1999 through 2003.

Does this fit Yamaha F115?
Yes. The fitment includes extensive F115 TJR, TLR, TXR, JA, LA and XA applications, plus LF115 counter-rotation engines.

Does this fit Mercury 75HP and 90HP carbureted engines?
Yes. Verified Mercury fitment includes both 75HP and 90HP carbureted applications from 0G960500 thru 1B226999.

Does this fit Mercury EFI engines?
Yes. The supplied Mercury data includes select 75HP, 80HP, 90HP, 100HP and 115HP EFI applications.

Does it fit Mercury 115HP EFI?
Yes. Mercury catalog fitment includes 115HP EFI applications in 0T178500 thru 0T800999, 0T801000 thru 1B226999, and later 1B-series applications through 1B366822.

Is there an aftermarket version available?
Yes. The Pro Marine 67111 cylinder head gasket is linked above.

Do you sell a complete gasket kit?
Yes. The Pro Marine 6803 Powerhead Gasket Kit is linked above for compatible applications where a complete engine rebuild or major powerhead repair is being performed.

Should I reuse the old cylinder head gasket?
A cylinder head gasket should be replaced when the cylinder head has been removed. Follow the applicable Yamaha or Mercury service procedure during reassembly.

Dealer Discounts & Store Policies

Dealer / Marine Industry Discounts

Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.

Apply for a Dealer Account

Shipping Policy

Free shipping on orders over $100 continental U.S.
Orders ship via UPS, USPS, and FedEx.
Orders received before 5:30 PM EST ship the same business day.
Typical delivery time is 1-5 business days.

30-Day Return Policy

Returns accepted within 30 days of delivery.
Parts must be new, unused, and in original packaging.
Installed parts are not returnable.
Return authorization is required before sending items back.

Need help with a return or order question?
Contact Us
Phone: 941-721-3000

Searchable Terms

67111-1, Yamaha 67111-1, 67F-11181-00-00, 67F-11181-01-00, 67F-11181-02-00, 67F-11181-03-00, Yamaha 67F-11181, 18-99094, Sierra 18-99094, 804115, 8041151, Yamaha cylinder head gasket, Yamaha F75 head gasket, Yamaha F80 head gasket, Yamaha F90 head gasket, Yamaha F100 head gasket, Yamaha F115 head gasket, Yamaha LF115 head gasket, Mercury 75 carb head gasket, Mercury 90 carb head gasket, Mercury 75 EFI head gasket, Mercury 80 EFI head gasket, Mercury 90 EFI head gasket, Mercury 100 EFI head gasket, Mercury 115 EFI head gasket, Mercury 804115 head gasket, F115TLR head gasket, F115TXR head gasket, F115TJR head gasket, F115JA head gasket, F115LA head gasket, F115XA head gasket, LF115TXR head gasket, 67111, Pro Marine 67111, 6803, Yamaha powerhead gasket kit

Item#:

67111-1

Cross Reference#:

18-99094
67F-11181-00-00
67F-11181-01-00
67F-11181-02-00
67F-11181-03-00
804115
8041151

Manufacturer Item:

8041151

Manufacturer:

Yamaha Outboard

Available:

In Stock

Your Price:

147.99

Each

Qty:

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