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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
- Complete Powerheads
- Control Cables & Boxes
- Cooling System
- Cowlings & Components
- Electrical System
- Engine Oil
- Engine Rebuild Kits
- Fuel & Carburetion System
- Intake System
- Internal Engine Components
- Lower Unit Components
- Oiling System
- Paints
- Service & Oil Change Kits
- Service Manuals
- Steering Systems
- Throttle Components
- Transom & Midsection
- Trim System
- Wizard Performance Parts
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.
822189
3R3074060M
5041203
895146
814496M
82263M
93210-09156-00
93210-09165-00
93210-09350-00
93210-09729-00
93210-09754-00
93210-09811-00
3H6602180M
5041015
875208
Mercury Fuel Supply Module / VST Seal Kit
Mercury FSM / VST Seal Kit - Pro Marine 7333 - Replaces 8M0133370
The Pro Marine 7333 Fuel Supply Module Seal Kit replaces Mercury OEM 8M0133370 and is used when servicing compatible Mercury Fuel Supply Module (FSM) / VST assemblies.
Fitment covers an unusually broad range of Mercury products including select 65-150HP EFI outboards, L6 Verado, 3.4L V6, 4.6L V8, 5.7L V10, 7.6L V12, Mercury Racing, MerCruiser 4.5L / 6.2L, MIE and TowSports engines.
Because Mercury uses different fuel pumps inside these modules depending on engine family and serial range, the correct low-pressure, high-pressure, feed and lift pump options are organized further down this page.
OEM & Cross Reference Numbers
| Brand / Type | Part Number |
|---|---|
| Pro Marine | 7333 |
| Mercury OEM | 8M0133370 |
Mercury FSM / VST Seal Kit Fitment
The 7333 / 8M0133370 seal kit fits all of the engine families listed below. The individual fuel pumps inside the module vary by model and serial range, but this seal kit is common across these compatible Fuel Supply Module applications.
| Engine Family | Verified Applications | Serial Information |
|---|---|---|
| Mercury 65-115HP EFI | 65 EFI Jet, 75 EFI, 75 SeaPro, 80 EFI, 80 EFI Jet, 90 EFI, 90 SeaPro, 100 EFI, 115 EFI, 115 SeaPro and 115 Pro XS | Most applications 2B095049 & Present; 115 Pro XS 2B225488 & Present |
| Mercury 105-150HP EFI | 105 EFI Jet, 135 EFI, 150 EFI, 150 EFI SeaPro and 150 EFI Pro XS | Includes 1B905505 & Present, 2B131942 & Present, 2B139139 & Present, 2B550139 & Present and later applications |
| Mercury L6 Verado | 200, 225, 250, 275 and 300HP Verado; 200, 250 and 300HP Pro Verado | Includes 2B144123 thru 2B577715 / 2B578935 depending on configuration |
| Mercury 2.6L L6 Verado / Racing | 350 Verado, 350 Pro Verado, 400 Verado and 400R Racing | Includes 2B141124 / 2B141617 / 2B618256 thru 3B342962 |
| Mercury 3.4L V6 | 175, 200 and 225HP; 200 SeaPro and 175 Pro XS | 2B529482 & Present |
| Mercury 3.4L V6 Racing | 150R, 200R, 200R 15-inch Midsection and 200 ROS | 3B547096 & Present on standard Racing models; select 15-inch models 1E054618 & Present |
| Mercury 4.6L V8 | 250 and 300HP standard V8; 225 / 250 SeaPro; 300 CMS SeaPro and AMS SeaPro | 2B529482 & Present |
| Mercury 4.6L V8 Pro XS / Verado | 200, 225, 250 and 300 Pro XS; 250 and 300 Verado | 2B529482 & Present |
| Mercury 4.6L V8 Racing | 250R, 300R, 300R AMS Racing, 300R / 300 ROS 15-inch and 450R | Includes 1E080500 & Present, 1E081459 & Present, 1E054618 & Present and 1E083006 thru 1E099720 |
| Mercury 500R 4.6L V8 Racing | 500R Racing | 1E099432 & Present |
| Mercury 5.7L V10 | 350 Verado, 350 SeaPro, 400 Verado, 400R Racing and 425 Verado | Includes 3B266064, 3B272954 and later serial ranges |
| Mercury 7.6L V12 SeaPro | 500HP and 600HP SeaPro | 3B060047 & Present |
| MerCruiser 4.5L MPI | 200 and 250HP Alpha / Bravo including EC versions | Multiple FSM generations including 2A441953 thru 2A530777 and later |
| MerCruiser 6.2L MPI | 300 and 350HP including EC versions | Multiple FSM generations including 2A456613 thru 2A530775 and later |
| Mercury 6.2L TowSports | 320 and 370HP including EC versions | Includes 2A456613 thru 2A530773 and later applications |
| Mercury 6.2L MIE / Inboard | MIE 300, MIE 350, EC 300, EC 350 and Jet 370 | Multiple Fuel Supply Module generations |
Mercury changed the fuel pumps inside the FSM at different serial breaks while continuing to use this seal kit on many applications.
Use the engine family and serial number to select the correct pump from the guide below. Do not choose an FSM pump by horsepower alone.
Mercury FSM Fuel Pump Selection Guide
Use this section to identify the pumps commonly found inside the Fuel Supply Module that uses the 7333 / 8M0133370 seal kit.
Low-Pressure Fuel Pumps
The low-pressure pump keeps the Fuel Supply Module supplied with fuel so the high-pressure side can operate correctly.
65-150 EFI - FSM Range 2B494019 thru 3B694498
Also used in compatible 200-300R 4.6L V8, 200-400HP L6 Verado, 175-225HP V6 and 200-300HP V8 applications.
Mercury OEM 883202 Low-Pressure Fuel Pump
Genuine Mercury low-pressure electric fuel pump for compatible FSM applications.
Pro Marine Replacement for 883202
Pro Marine aftermarket low-pressure FSM fuel pump for compatible Mercury applications.
65-150 EFI - 3B681565 & Present
Mercury 8M0245917 Low-Pressure Fuel Pump
Later low-pressure FSM pump used on select 65-150HP EFI applications, including the later FSM configuration.
View Mercury 8M0245917 Pump450R 4.6L V8 Racing
Special Order - Contact Pro Marine for availability.
High-Pressure Fuel Pumps
The high-pressure pump supplies the fuel pressure required by the electronic fuel-injection system.
200-300R 4.6L V8 & 200-400HP L6 Verado
Pro Marine 3288P High-Pressure Fuel Pump
High-pressure FSM pump for compatible L6 Verado and modern Mercury V6 / V8 applications.
View Pro Marine 3288P65-150 EFI - FSM Range 2B494019 thru 3B694498
EMP 39612 High-Pressure Fuel Pump
High-pressure FSM fuel pump for select 65-150HP EFI applications using the earlier compatible FSM configuration.
View EMP 39612 High-Pressure Pump65-150 EFI - 3B681565 & Present
Mercury 8M0245916 High-Pressure Fuel Pump
Later high-pressure Fuel Supply Module pump for compatible 65-150HP EFI, MerCruiser 4.5L / 6.2L, MIE and TowSports applications.
View Mercury 8M0245916 Pump450R 4.6L V8 Racing
Special Order - Contact Pro Marine for availability.
500R & V12 Fuel Pumps
Later high-output Racing and V12 engines use separate feed and lift pump configurations.
Feed Pump - Mercury 8M0179359
Applications:
Mercury 500R 4.6L V8 Racing
Mercury 500-600HP 7.6L V12
Special Order - Contact Pro Marine for availability.
Lift Pump - Mercury 8M0179358
Applications:
Mercury 500R 4.6L V8 Racing
Mercury 500-600HP 7.6L V12
Special Order - Contact Pro Marine for availability.
What This Seal Kit is Used For
Mercury Fuel Supply Modules contain electric fuel pumps, fuel passages, regulators and sealing surfaces that must remain fuel-tight. Whenever the module is disassembled for pump replacement or internal service, the O-rings and seals should be carefully inspected.
The Pro Marine 7333 / Mercury 8M0133370 seal kit provides replacement seals for compatible FSM assemblies so the module can be properly resealed during service.
When Should I Replace the FSM Seals?
- Whenever the Fuel Supply Module is opened for major service
- When replacing a high-pressure fuel pump
- When replacing a low-pressure fuel pump
- When existing seals are flattened, swollen, cracked or damaged
- When repairing an FSM fuel leak
- When contamination or deterioration is found during disassembly
Why Service the Entire Fuel Supply Module?
Fuel-pressure problems can originate on either side of the FSM. A weak low-pressure pump can starve a perfectly good high-pressure pump, while a failed high-pressure pump may prevent the EFI system from reaching operating pressure even when the module has plenty of fuel.
Before replacing components, test both fuel delivery and fuel pressure. If the module must be opened, inspect both pumps, electrical connections, fuel passages and all seals while access is available.
Key Features and Benefits
- Pro Marine Fuel Supply Module / VST seal kit
- Replaces Mercury OEM 8M0133370
- Fits a broad range of Mercury FSM applications
- Fits select 65-150HP EFI outboards
- Fits L6 Verado 200-400HP applications
- Fits modern Mercury 3.4L V6 engines
- Fits modern Mercury 4.6L V8 engines
- Fits select Mercury Racing 150R-500R applications
- Fits select Mercury 5.7L V10 applications
- Fits select 500-600HP 7.6L V12 applications
- Fits select MerCruiser 4.5L and 6.2L engines
- Fits select MIE and TowSports Fuel Supply Modules
- Low-pressure and high-pressure pump options organized above
FAQ
What OEM number does Pro Marine 7333 replace?
Pro Marine 7333 replaces Mercury FSM seal kit
8M0133370.
Is this a VST seal kit or an FSM seal kit?
It is used to reseal compatible Mercury Fuel Supply Module assemblies.
These fuel modules are also commonly referred to as VST / fuel module
assemblies when discussing marine EFI fuel-system service.
Does this fit Mercury L6 Verado?
Yes. Fitment includes numerous 200-400HP L6 Verado, Pro Verado and Racing
applications shown above.
Does this fit Mercury 3.4L V6 and 4.6L V8 engines?
Yes. The verified fitment includes multiple V6, V8, SeaPro, Pro XS,
Verado and Racing configurations.
Does it fit the Mercury V10?
Yes. The supplied Mercury catalog fitment includes select 5.7L V10
Verado, SeaPro and Racing applications.
Does it fit Mercury V12 engines?
Yes. Verified fitment includes select 500HP and 600HP 7.6L V12 SeaPro
applications.
Does it fit MerCruiser engines?
Yes. The fitment includes select 4.5L MPI and 6.2L MPI MerCruiser,
MIE and TowSports Fuel Supply Modules.
Which fuel pump goes with this seal kit?
There is no single pump for every application. The correct low-pressure
and high-pressure pumps vary by engine family and FSM serial range.
Use the Fuel Pump Selection Guide above.
Should the seals be replaced when changing an FSM pump?
Inspect the seals whenever the Fuel Supply Module is opened. Replacing worn,
damaged or disturbed seals while the module is apart helps prevent having to
disassemble the FSM again for a leak.
How do I confirm fitment?
Verify the engine model and serial number and confirm that the Mercury
Fuel Supply Module diagram calls for seal kit
8M0133370.
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.
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
7333, Pro Marine 7333, 8M0133370, Mercury 8M0133370, Mercury FSM seal kit, Mercury VST seal kit, Mercury Fuel Supply Module seal kit, Verado FSM seal kit, Verado VST seal kit, Mercury fuel module O ring kit, Mercury fuel module gasket kit, Mercury 65 EFI FSM seal kit, Mercury 75 EFI FSM seal kit, Mercury 90 EFI FSM seal kit, Mercury 115 EFI FSM seal kit, Mercury 150 EFI FSM seal kit, Mercury L6 Verado FSM seal kit, Mercury 200 Verado seal kit, Mercury 250 Verado seal kit, Mercury 300 Verado seal kit, Mercury 350 Verado seal kit, Mercury 400 Verado seal kit, Mercury 400R FSM seal kit, Mercury 450R FSM seal kit, Mercury 500R FSM seal kit, Mercury 3.4L V6 FSM seal kit, Mercury 4.6L V8 FSM seal kit, Mercury 5.7L V10 FSM seal kit, Mercury 7.6L V12 FSM seal kit, Mercury 500 V12 seal kit, Mercury 600 V12 seal kit, MerCruiser 4.5L FSM seal kit, MerCruiser 6.2L FSM seal kit, Mercury MIE FSM seal kit, Mercury TowSports FSM seal kit, 883202, 1-32-883202, 8M0245917, 3288P, 39612, 8M0245916, 8M0161399, 8M0161400, 8M0179358, 8M0179359
Mercury Verado Power Steering Helm
Mercury Verado 50cm Non-Tilt Power Steering Helm
This OEM Mercury 50cm power steering helm is the standard non-tilt helm for Mercury Verado power steering systems. It is used when the boat requires a fixed steering wheel position instead of an adjustable tilt helm.
Match your original helm number, steering setup, and cross-reference numbers before ordering. For Verado pump service, Gen A/B replacement and Gen C pump options are linked below, along with Pro Marine's Gen B to Gen C conversion walkthrough.
Compatible Applications
| System | Helm Type | Fitment Note |
|---|---|---|
| Mercury Verado power steering systems | 50cm standard non-tilt helm | Verify the current helm number, steering configuration, and OEM cross-reference before ordering. |
Important Fitment Note
This is the non-tilt Mercury Verado helm. If the boat uses or needs a tilt steering wheel position, order the Mercury Verado 50cm tilt helm, item 8M0137451.
OEM & Cross Reference Numbers
| Type | Part Numbers |
|---|---|
| Pro Marine Item Number | 8M0137449 |
| Mercury Manufacturer Item | 8M0137449 |
| Cross Reference Numbers | 8M0134643, 8M0137449, 8M0151565, 8M0240081, 892558A01, 892558A02, 892558K12, 892558K32 |
What This Part is Used For
The helm is the steering control unit mounted behind the steering wheel at the dash. This Mercury 8M0137449 helm is used when replacing the standard fixed-position helm in a compatible Verado power steering system.
If the steering system has been converted, repaired, or mixed with later-generation pump components, verify the helm, hose, pump, and harness requirements before ordering.
Related Verado Power Steering Parts
Helm Power Steering With Tilt
Mercury Verado 50cm power steering helm with tilt. Order this version when the application requires a tilt steering wheel position.
Item #: 8M0137451
View Tilt Helm
Power Steering Fluid
Mercury full synthetic power steering fluid for compatible Mercury and Verado power steering service.
Item #: 858077
View Power Steering Fluid
Mercury Verado Gen A/B Power Steering Pump Replacement
Pro Marine replacement pump for Gen A and Gen B Verado power steering systems. Cross references 8M0134359 and 8M0134736.
Item #: 8M0134736P
View Gen A/B Pump
Power Steering Pump
OEM Mercury Verado Gen C power steering pump. Pump only; hoses and conversion parts are sold separately when required.
Item #: 8M0199048
View Gen C PumpGen B to Gen C Conversion Help
If you are replacing a Verado power steering pump and need to identify whether your boat has a Gen A/B or Gen C system, review Pro Marine's conversion walkthrough before ordering pump, harness, hose, or steering components.
Read the Verado Gen B to Gen C Power Steering Conversion GuideKey Features and Benefits
- OEM Mercury Marine 50cm power steering helm.
- Standard non-tilt design for a fixed steering wheel position.
- Fits Verado power steering systems when the original application calls for this non-tilt helm.
- Cross references common Mercury helm numbers including 892558A01, 892558A02, 892558K12, and 892558K32.
- Related tilt helm, power steering fluid, Gen A/B pump, Gen C pump, and conversion guide are linked for easier steering system service planning.
Product Details
| Product | Helm Power Steering Std 50Cm |
| Application | Mercury Verado power steering systems |
| Manufacturer | Mercury Marine |
| OEM or Aftermarket | OEM |
| Helm Style | Standard non-tilt |
FAQ
Is this the tilt helm?
No. This is the standard non-tilt Mercury Verado helm. For the tilt version, order item 8M0137451.
What does this helm fit?
This helm fits Verado power steering systems that require the 50cm standard non-tilt helm. Verify your original helm part number and steering configuration before ordering.
Which pump should I order with Verado steering service?
Identify the pump generation first. Pro Marine offers a Gen A/B replacement pump, item 8M0134736P, and an OEM Mercury Gen C pump, item 8M0199048. Use the Gen B to Gen C conversion walkthrough if you are planning an upgrade.
Is power steering fluid linked for this system?
Yes. Mercury full synthetic power steering fluid is available separately as item 858077.
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.
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
Mercury Verado power steering helm, Mercury Verado non-tilt helm, standard 50cm helm, fixed position Verado helm, OEM Mercury steering helm, Verado hydraulic power steering helm, Verado Gen B to Gen C conversion, Verado Gen C pump, Verado Gen A B pump.
Searchable Part Numbers
8M0137449, 8M0134643, 8M0151565, 8M0240081, 892558A01, 892558A02, 892558K12, 892558K32, 8M0137451, 858077, 858077K01, 858002K01, 858077KC1, 8M0134736P, 8M0134736, 8M0134359, 8M0199048.
8M0137449
8M0137449
8M0151565
8M0240081
892558A01
892558A02
892558K12
892558K12
892558K32
3B2873220
3B2873220M
3B2873220M
3B2873221
3B2873221M
3B2873222
3B2873222M
5040537
803748K01
803748Q01
18458A4
18458Q12
18458Q4
18458T12
18458T4
184584
184585
18-7968
18458A4
18458A4
18458Q12
18458Q4
18458T12
18458T4
184584
184585
9-37806