S2K Commerce - Products Dropdown
Actions
S2K Commerce - Order Entry
Actions
Mercury Propeller Hardware
Mercury Heavy Duty Propeller Washer 8M0204711
Mercury 8M0204711 is a propeller washer used during propeller installation on select Mercury outboards, MerCruiser sterndrives, and Mercury Racing applications. It is commonly used as part of the propeller hardware stack to help retain the prop nut on the shaft.
This washer supersedes Mercury part numbers 8403831 and 840383 and may also be shown as 12-8M0204711. Fitment varies by gearcase, drive, prop shaft size, and propeller hardware setup, so verify by model and serial number before ordering.
Compatible Applications
| Brand | Engine / System | Application | Fitment Note |
|---|---|---|---|
| Mercury | Select outboards | Propeller shaft hardware | Common on larger or heavy-duty prop shaft applications where this washer is listed |
| Mercury Racing | Select Sport Master and Torque Master style gearcases | Prop nut retaining washer | Often associated with heavy-duty propeller hardware and larger prop shafts |
| MerCruiser / Mercury Racing | Select performance sterndrives | Propeller installation hardware | Common on Bravo XR and similar heavy-duty prop shaft applications where specified |
Important Fitment Note
Propeller washers vary by prop shaft size, gearcase, drive type, and propeller hardware kit. Always confirm compatibility using your engine or drive serial number, prop shaft size, and existing hardware before ordering.
OEM & Cross Reference Numbers
| Current Mercury Number | 8M0204711, 12-8M0204711 |
| Superseded Mercury Numbers | 8403831, 840383 |
| Description | Propeller washer / retaining washer |
What This Part Is Used For
This propeller washer is installed with the propeller hardware on select Mercury and MerCruiser propeller shafts. It helps support proper prop nut retention and is often used as part of the propeller hardware kit.
Replace damaged, bent, corroded, or missing propeller washers during prop service. Reusing worn prop hardware can increase the chance of improper nut retention or hardware loosening during operation.
Key Features and Benefits
- Current Mercury number 8M0204711
- Also listed as 12-8M0204711
- Supersedes Mercury 8403831 and 840383
- Used as propeller retaining hardware on select Mercury and MerCruiser applications
- Common service item during propeller changes, gearcase service, or prop hardware replacement
- Helps maintain proper prop nut retention when installed with the correct hardware stack
FAQ
Is 8M0204711 the same as 8403831 and 840383?
Yes. Mercury 8M0204711 is the current number and supersedes 8403831 and 840383.
Where does this washer install?
It installs on the propeller shaft as part of the propeller hardware stack and helps retain or lock the prop nut, depending on the application.
Does this fit all Mercury propellers?
No. Fitment depends on the gearcase, drive model, prop shaft size, and hardware kit. Verify your serial number and existing prop hardware before ordering.
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 propeller washer, Mercury prop washer, Mercury retaining washer, Mercury tab washer, MerCruiser propeller washer, Mercury Racing prop hardware, Sport Master prop washer, Torque Master prop washer, Bravo XR prop washer, heavy duty prop shaft washer, prop nut washer
Searchable Part Numbers
8M0204711, 12-8M0204711, 8403831, 840383
840383
8403831
884329T
807929A1
807929A2
815922A1
815922A5
821759A1
821759A2
821759A3
821759A4
Mercury Marine OEM Verado Power Steering Fitting
Mercury 8M0147795 Verado Gen B Power Steering Adapter Fitting
The Mercury 8M0147795 Adapter Fitting is a male-to-male hydraulic fitting used to connect a Mercury Verado pressure-side steering hose to a Gen B power steering pump or damper hose.
This fitting adapts the different connection styles found between the Verado pressure hose and Gen B steering components. It features a male Saginaw-flare connection on one side and male ORFS connection on the other, allowing the pressure-side components to be properly connected.
Part Type: Hydraulic Power Steering Adapter Fitting
Manufacturer: Mercury Marine
OEM or Aftermarket: OEM
Application: Mercury Verado Gen B Power Steering
Connection: Male Saginaw Flare to Male ORFS
System Location: Pressure Side
Manufacturer Item #: 8M0147795
OEM and Cross Reference Numbers
| Reference Type | Part Number | Manufacturer |
|---|---|---|
| OEM Part Number | 8M0147795 | Mercury Marine |
What This Part is Used For
Mercury part 8M0147795 is used on the pressure side of a Mercury Verado hydraulic power steering system when the pressure hose and Gen B steering component have different fitting styles.
The adapter provides the connection needed between the Verado pressure-side steering hose and the Gen B power steering pump or 897643A01 damper hose, depending on how the steering system is configured.
Mercury identifies this fitting as a male Saginaw-flare to male ORFS adapter. It is particularly useful when servicing or updating an existing Gen B Verado steering system with the later-style pressure hose connection.
The 8M0147795 is used on the pressure side of the Verado hydraulic steering system. It is an adapter fitting and should not be confused with the pressure hose or the 897643A01 damper hose.
Verify the existing pump, pressure hose, damper hose, and fitting configuration before ordering.
Compatible Applications
| Brand | System | Connection | Application |
|---|---|---|---|
| Mercury Marine | Verado Gen B Power Steering | Male Saginaw Flare to Male ORFS | Pressure Hose to Gen B Steering Component |
Mercury Verado steering systems can have different pressure-side hose and fitting designs. The 8M0147795 adapts the newer ORFS-style pressure hose connection to the Saginaw-style fitting used with the Gen B steering configuration.
Related Mercury Verado Power Steering Parts
Mercury 897643A01 Verado Damper Hose
The Mercury 897643A01 damper hose is used on the pressure side of Gen A / Gen B Verado power steering systems to help dampen hydraulic pulsations and reduce steering-system noise.
The 8M0147795 adapter fitting may be used to make the required pressure-side connection when the newer ORFS-style Verado pressure hose is being connected to the Gen B damper hose configuration.
View 897643A01 Damper Hose
Pro Marine Gen A/B Verado Power Steering Pump
Replacement power steering pump for Mercury Verado systems using the earlier Gen A / Gen B hydraulic steering configuration.
View Gen A/B Power Steering PumpInstallation and Service Tips
- Confirm that the steering system requires the Saginaw-flare to ORFS conversion before installing this adapter.
- The 8M0147795 is installed on the pressure side of the hydraulic steering system.
- Inspect the pressure hose, damper hose, pump fittings, and sealing surfaces whenever the connection is opened.
- Replace damaged or deteriorated sealing components as required during service.
- Use the correct Mercury-approved power steering fluid.
- Properly bleed the hydraulic steering system after opening the pressure-side hydraulic circuit.
- Inspect the completed system for hydraulic leaks before operating the boat.
Key Features and Benefits
- OEM Mercury Part: Genuine Mercury Marine hydraulic steering fitting.
- Gen B Steering Application: Designed for use with Mercury Verado Gen B power steering configurations.
- Pressure-Side Adapter: Allows different generations of Verado pressure-side components to connect correctly.
- Male-to-Male Design: Male Saginaw-flare connection on one side and male ORFS connection on the other.
- Service Solution: Useful when installing a later-style pressure hose into an existing Gen B Verado steering system.
FAQ
What is Mercury part 8M0147795?
It is an OEM Mercury male-to-male hydraulic adapter fitting used in Verado power steering systems. The fitting adapts a male Saginaw-flare connection to a male ORFS connection.
What does 8M0147795 connect?
It is used to connect the Verado pressure-side steering hose to the Gen B power steering pump or damper-hose configuration when the two components use different fitting styles.
Is 8M0147795 a hose?
No. The 8M0147795 is an adapter fitting. It connects the pressure hose to the appropriate Gen B steering component.
What fitting styles does 8M0147795 adapt?
Mercury identifies the fitting as a male Saginaw-flare to male ORFS adapter.
Can 8M0147795 be used with the 897643A01 damper hose?
Yes, when the steering configuration requires the adapter to connect the ORFS-style pressure hose to the Gen B damper-hose connection.
Can the Verado pressure hose connect directly to the Gen B pump?
The exact connection depends on the pressure hose and pump configuration. Some installations require the 8M0147795 adapter fitting, and a 897643A01 damper hose may also be installed in the pressure circuit to help reduce steering-system noise.
How do I know if I need this adapter?
Check the fitting on your Verado pressure hose and the fitting on the Gen B pump or damper hose. The 8M0147795 is used when a male Saginaw-flare to male ORFS connection is required.
Dealer Discounts & Store Policies
Dealer / Marine Industry Discounts
Are you a marine dealer, technician, boat builder, repair facility, or marine industry professional? Pro Marine USA offers dealer pricing for qualified businesses.
Shipping Policy
- Free shipping on orders over $100 in the 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 are accepted within 30 days.
- Parts must be new, unused, and in original packaging.
- Installed parts are not returnable.
- Return authorization is required before sending items back.
Need help determining whether your Verado steering system requires this adapter? Contact Pro Marine USA or call 941-721-3000.
Searchable Part Numbers
8M0147795, Mercury 8M0147795
Searchable Terms
Mercury Verado adapter fitting, Verado pressure hose adapter, Mercury power steering adapter, Verado Gen B adapter, Gen B power steering fitting, Saginaw flare to ORFS adapter, male Saginaw fitting, male ORFS fitting, Mercury steering hose adapter, Verado pump adapter, Verado damper hose adapter, Gen B pump pressure fitting
Mercury Engine Cradle and Mounting
Mercury 8M0142936 Front Cradle Cover
Mercury 8M0142936 is a front cradle cover used in the engine cradle or mounting area on select Mercury 4.6L V8 outboards with AMS, including 250, 300, and 300R applications.
This cover helps protect and finish the front cradle area. Because this is a model and serial specific structural or rigging-area part, always confirm fitment by engine serial number before ordering.
Compatible Applications
| Brand | Engine / System | Application | Fitment Note |
|---|---|---|---|
| Mercury | 4.6L V8 AMS Outboards | 250, 300, and 300R models with Advanced Midsection | Verify by serial number and engine configuration |
| Mercury Racing | V8 AMS Performance Applications | Front cradle / mounting cover location | Confirm with parts diagram for your serial number |
Important Fitment Note
Always confirm compatibility using your engine serial number, model, and existing part number before ordering. This part is specific to certain Mercury 4.6L V8 AMS cradle and mounting configurations.
OEM & Cross Reference Numbers
| Mercury OEM Number | 8M0142936 |
| Description | Cover, Cradle Front |
| Other References | Front cradle cover, mounting cover, cradle front cover |
What This Part Is Used For
The front cradle cover is used in the engine cradle or mounting area of select Mercury V8 AMS outboards. It helps cover, shield, or finish the front cradle section depending on the engine configuration.
Replacement may be needed if the original cover is cracked, missing, damaged during service, or no longer securing properly in the cradle area.
Key Features and Benefits
- Genuine Mercury OEM part number 8M0142936
- Front cradle cover for select Mercury 4.6L V8 AMS applications
- Used in the engine cradle or mounting cover area
- Helps protect and finish the front cradle section
- Best matched by engine serial number and parts diagram
FAQ
What is Mercury 8M0142936?
8M0142936 is a Mercury front cradle cover used in the engine cradle or mounting area on select Mercury V8 AMS outboards.
Does this fit all Mercury V8 outboards?
No. This part is associated with select 4.6L V8 AMS applications, including 250, 300, and 300R models. Verify by serial number before ordering.
Is this a service maintenance part?
This is not a routine maintenance part. It is normally replaced when the original cradle cover is missing, cracked, damaged, or removed during repair.
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 front cradle cover, Mercury cradle front cover, Mercury mounting cover, Mercury AMS cradle cover, 4.6L V8 AMS cover, Mercury 300R front cradle cover, Mercury V8 mounting area cover
Searchable Part Numbers
8M0142936, Mercury 8M0142936
OEM Mercury 300-Hour Service Kit with Oil & Gear Lube
Mercury 8M0149931-L Service Kit for 4.6L V8 CMS SeaPro & ProXS Outboards
The Mercury 8M0149931-L 300-Hour Service Kit is an OEM maintenance kit for Mercury 4.6L V8 CMS (Conventional Mid Section) SeaPro and ProXS 4-stroke outboards.
This complete version includes the major 300-hour service replacement items, plus Mercury 10W30 engine oil and Mercury gear lube for a more complete maintenance package.
Compatible Applications
| Engine Family | Horsepower / Type | Midsection | Application Notes |
|---|---|---|---|
| Mercury SeaPro | 4.6L V8 FourStroke | CMS / Conventional Mid Section | Fits compatible Mercury V8 CMS SeaPro outboards |
| Mercury ProXS | 4.6L V8 FourStroke | CMS / Conventional Mid Section | Fits compatible Mercury V8 CMS ProXS outboards |
CMS stands for Conventional Mid Section. Always verify your engine model, serial number, and owner’s manual before ordering service kits or maintenance parts.
What is Included
- OEM Mercury oil filter
- OEM Mercury fuel filter
- Oil drain seal
- Spark plugs
- Thermostat
- Alternator belt
- Water pump repair kit
- Anodes
- Mercury 10W30 engine oil
- Mercury gear lube
OEM Part Numbers & Cross References
| Brand / Type | Part Number |
|---|---|
| Mercury OEM | 8M0149931-L |
| Related Kit Without Oil | 8M0149931 |
| Application | 300-Hour V8 CMS Service Kit with Oil & Gear Lube |
Prefer to Choose Your Own Oil?
This kit includes Mercury 10W30 engine oil and gear lube. Some customers prefer to choose a different Mercury oil viscosity or purchase fluids separately.
If you want the same 300-hour kit without oil and gear lube, see:
Related Anode Kit
This V8 CMS application uses the Mercury CMS aluminum anode kit. If you are replacing anodes separately or want a complete corrosion protection kit, see:
Mercury 8M0205953 Aluminum Anode Kit for CMS V6 / V8 Outboards
What This Service Kit is Used For
This Mercury 300-hour service kit is used for scheduled maintenance on compatible V8 CMS SeaPro and ProXS 4-stroke outboards.
Periodic maintenance helps protect your investment, support reliable operation, and keep your engine running longer and stronger.
Mercury packages the required 300-hour service replacement items together so customers do not have to order each part separately.
Key Features and Benefits
- Genuine OEM Mercury 300-hour maintenance kit
- Fits Mercury 4.6L V8 CMS SeaPro and ProXS 4-stroke outboards
- Includes oil filter, fuel filter, and oil drain seal
- Includes spark plugs, thermostat, and alternator belt
- Includes water pump repair kit and anodes
- Includes Mercury 10W30 engine oil and gear lube
- Convenient all-in-one maintenance package
- Produced to Mercury OEM specifications
Service Kit Details
- Brand: Mercury / Quicksilver
- Part Number: 8M0149931-L
- Part Type: 300-Hour Service Kit with Oil & Gear Lube
- Application: Mercury 4.6L V8 CMS SeaPro and ProXS FourStroke Outboards
- Midsection: CMS / Conventional Mid Section
- Includes Oil: Yes
- Includes Gear Lube: Yes
- Quantity Sold: Kit
FAQ
What engines does Mercury 8M0149931-L fit?
This kit fits Mercury 4.6L V8 CMS SeaPro and ProXS 4-stroke outboards.
Does this kit include engine oil?
Yes. This version includes Mercury 10W30 engine oil.
Does this kit include gear lube?
Yes. This version includes Mercury gear lube.
What parts are included in this 300-hour kit?
The kit includes an oil filter, fuel filter, oil drain seal, spark plugs,
thermostat, alternator belt, water pump repair kit, anodes, engine oil,
and gear lube.
Is there a version without oil?
Yes. Mercury 8M0149931 includes the same 300-hour service parts without
engine oil and gear lube.
Which anode kit goes with this engine?
This CMS application uses Mercury aluminum anode kit 8M0205953.
Is this an OEM Mercury kit?
Yes. This is a genuine Mercury / Quicksilver service kit produced to
Mercury OEM specifications.
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.
- Service kits should be verified for correct fitment before installation.
- 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 Terms
8M0149931-L, Mercury 300 hour service kit with oil, Mercury V8 CMS service kit, Mercury 4.6L V8 service kit, Mercury SeaPro 300 hour kit with oil, Mercury ProXS 300 hour kit with oil, Mercury CMS maintenance kit, Mercury oil filter fuel filter kit, Mercury spark plug service kit, Mercury water pump repair kit, Mercury thermostat service kit, Mercury alternator belt kit, Mercury anode service kit, Mercury 10W30 oil kit, Mercury gear lube kit, 8M0149931, 8M0205953
8M6003194
878187
OEM Mercury 75-115HP 2.1L 100 Hour Service Kit
Mercury 75-115HP 2.1L EFI 100 Hour Kit - Serial 2B094996-Present
The Mercury 8M0097854 100 hour service kit is designed for Mercury 75HP, 90HP, and 115HP 2.1L FourStroke EFI outboards with serial numbers 2B094996 and higher.
This OEM Mercury maintenance kit includes the routine 100 hour service components commonly replaced during scheduled maintenance. This version does not include engine oil or gear lube.
Compatible Applications
| Brand | Horsepower | Engine Type | Serial Range |
|---|---|---|---|
| Mercury | 75HP, 90HP, 115HP | 2.1L FourStroke EFI Outboard | 2B094996 & Higher |
This 100 hour service kit is for Mercury 75HP, 90HP, and 115HP 2.1L FourStroke EFI outboards with serial numbers 2B094996 and higher.
Always verify your engine serial number before ordering maintenance parts.
What is Included
| Included Component | Application |
|---|---|
| Oil Filter | Engine oil filtration service |
| Fuel Filter | Fuel system maintenance |
| Gearcase Drain Seal | Gearcase lubricant service |
Oil Capacity & Recommended Oil Options
These Mercury 75-115HP 2.1L engines use approximately 6 quarts of engine oil, or 1 gallon plus 2 quarts.
This kit does not include engine oil.
| Oil Type | Product | Quantity Required |
|---|---|---|
| Mercury 10W30 | Mercury 10W30 Engine Oil - Quart | 6 quarts |
| Mercury 10W30 | Mercury 10W30 Engine Oil - Gallon | 1 gallon + 2 quarts |
| Mercury 10W30 Synthetic Blend | Mercury 10W30 Synthetic Blend - Quart | 6 quarts |
| Mercury 10W30 Synthetic Blend | Mercury 10W30 Synthetic Blend - Gallon | 1 gallon + 2 quarts |
| Mercury 10W30 Full Synthetic | Mercury 10W30 Full Synthetic - Gallon | 1 gallon + 2 quarts |
| Mercury 25W40 | Mercury 25W40 Engine Oil - Quart | 6 quarts |
| Mercury 25W40 Synthetic Blend | Mercury 25W40 Synthetic Blend - Quart | 6 quarts |
| Mercury 25W40 Synthetic Blend | Mercury 25W40 Synthetic Blend - Gallon | 1 gallon + 2 quarts |
Gear Lube Recommendations
This service requires approximately 1 quart of gear lube.
This kit does not include gear lube.
| Gear Lube Type | Product | Quantity Required |
|---|---|---|
| Mercury Premium Gear Lube 80W90 | Mercury Premium Gear Lube - Quart | 1 quart |
| Mercury High Performance Gear Lube | Mercury High Performance Gear Lube - Quart | 1 quart |
Want the Complete Kit With Oil & Gear Lube?
100 Hour Kit With 10W30 Oil & Gear Lube
The complete Mercury maintenance kit with 10W30 engine oil and gear lube is available separately for customers who want a complete service package.
View Kit With Oil & Gear LubeComplete Your Service
Side Pocket Anode Kit
Aluminum side pocket anode kit used on compatible Mercury 2.1L EFI outboards.
View Product
Transom Anode Bar Kit
Aluminum transom anode bar kit for corrosion protection on compatible Mercury outboards.
View Product
Mercury Aluminum Anode Kit
Complete aluminum anode kit option for compatible Mercury FourStroke outboards.
View ProductWhat This Service Kit is Used For
The Mercury 8M0097854 service kit is used for routine 100 hour maintenance on compatible Mercury 75-115HP 2.1L FourStroke EFI outboards with serial numbers 2B094996 and higher.
Routine service helps support fuel system cleanliness, oil filtration, gearcase lubricant service, and long-term engine reliability.
Key Features and Benefits
- OEM Mercury 100 hour service kit
- Fits Mercury 75HP, 90HP, and 115HP 2.1L FourStroke EFI outboards
- For serial numbers 2B094996 and higher
- Includes oil filter, fuel filter, and gearcase drain seal
- Does not include engine oil or gear lube
- Compatible with Mercury 10W30 and 25W40 oils
- Supports routine 100 hour maintenance intervals
Service Kit Details
- Part Number: 8M0097854
- Application: Mercury 75-115HP 2.1L FourStroke EFI Outboards
- Serial Range: 2B094996 & Higher
- Service Interval: 100 Hour Maintenance
- Oil Included: No
- Gear Lube Included: No
- Oil Capacity: Approximately 6 quarts, or 1 gallon plus 2 quarts
- Gear Lube Quantity: Approximately 1 quart
FAQ
What engines does this service kit fit?
This kit fits Mercury 75HP, 90HP, and 115HP 2.1L FourStroke EFI outboards with serial numbers 2B094996 and higher.
Does this kit include engine oil?
No. Engine oil is sold separately.
Does this kit include gear lube?
No. Gear lube is sold separately.
How much engine oil does the engine use?
Approximately 6 quarts, or 1 gallon plus 2 quarts.
How much gear lube is required?
Approximately 1 quart of gear lube is required.
Is there a version with oil and gear lube included?
Yes. A complete kit with 10W30 oil and gear lube 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.
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.
- Maintenance kits must be new, unused, and in original packaging.
- Opened oil and lubricants may not be 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
8M0097854, Mercury 75HP 2.1L service kit, Mercury 90HP 2.1L service kit, Mercury 115HP 2.1L service kit, Mercury 2.1L FourStroke maintenance kit, Mercury serial 2B094996, Mercury EFI maintenance, Mercury 100 hour service, Mercury oil filter, Mercury fuel filter, Mercury gearcase drain seal, Mercury 10W30 oil, Mercury 25W40 oil, Mercury Premium Gear Lube, Mercury High Performance Gear Lube, 6068K, 6249K, 8M0107549
OEM Mercury 75-115HP 1.7L 300 Hour Service Kit
Mercury 75-115HP 1.7L FourStroke 300 Hour Kit - Serial 1B366823-2B094995
The Mercury 8M0097857 300 hour service kit is designed for Mercury 75HP, 90HP, and 115HP 1.7L FourStroke outboards with serial numbers 1B366823 through 2B094995.
This OEM Mercury maintenance kit includes the major components commonly replaced during scheduled 300 hour maintenance intervals. This version does not include engine oil or gear lube.
Compatible Applications
| Brand | Horsepower | Engine Type | Serial Range |
|---|---|---|---|
| Mercury | 75HP, 90HP, 115HP | 1.7L FourStroke Outboard | 1B366823-2B094995 |
This 300 hour service kit is for Mercury 75HP, 90HP, and 115HP 1.7L FourStroke outboards with serial numbers 1B366823 through 2B094995.
Always verify your engine serial number before ordering maintenance parts.
What is Included
| Included Component | Application |
|---|---|
| Oil Filter | Engine oil filtration service |
| Fuel Filter | Fuel system maintenance |
| Gearcase Drain Seals | Gearcase lubricant service |
| Spark Plugs (4) | Ignition system maintenance |
| Thermostat Kit | Cooling system maintenance |
| Water Pump Impeller Kit | Water pump service |
| Alternator Belt | Charging system maintenance |
| Anodes | Corrosion protection |
Oil Capacity & Recommended Oil Options
These Mercury 75-115HP 1.7L engines use approximately 6 quarts of engine oil, or 1 gallon plus 2 quarts.
This kit does not include engine oil.
| Oil Type | Product | Quantity Required |
|---|---|---|
| Mercury 10W30 | Mercury 10W30 Engine Oil - Quart | 6 quarts |
| Mercury 10W30 | Mercury 10W30 Engine Oil - Gallon | 1 gallon + 2 quarts |
| Mercury 10W30 Synthetic Blend | Mercury 10W30 Synthetic Blend - Quart | 6 quarts |
| Mercury 10W30 Synthetic Blend | Mercury 10W30 Synthetic Blend - Gallon | 1 gallon + 2 quarts |
| Mercury 10W30 Full Synthetic | Mercury 10W30 Full Synthetic - Gallon | 1 gallon + 2 quarts |
| Mercury 25W40 | Mercury 25W40 Engine Oil - Quart | 6 quarts |
| Mercury 25W40 Synthetic Blend | Mercury 25W40 Synthetic Blend - Quart | 6 quarts |
| Mercury 25W40 Synthetic Blend | Mercury 25W40 Synthetic Blend - Gallon | 1 gallon + 2 quarts |
Gear Lube Recommendations
This service requires approximately 1 quart of gear lube.
This kit does not include gear lube.
| Gear Lube Type | Product | Quantity Required |
|---|---|---|
| Mercury Premium Gear Lube 80W90 | Mercury Premium Gear Lube - Quart | 1 quart |
| Mercury High Performance Gear Lube | Mercury High Performance Gear Lube - Quart | 1 quart |
Want the Complete Kit With Oil & Gear Lube?
300 Hour Kit With 10W30 Oil & Gear Lube
The complete Mercury 8M0097857-L service kit includes 10W30 engine oil and gear lube along with the major 300 hour maintenance components.
View Kit With Oil & Gear LubeWhat This Service Kit is Used For
The Mercury 8M0097857 service kit is used for major 300 hour maintenance on compatible Mercury 75-115HP 1.7L FourStroke outboards with serial numbers 1B366823 through 2B094995.
This maintenance interval commonly includes ignition system maintenance, cooling system service, water pump service, fuel filtration, corrosion protection, and gearcase service.
Key Features and Benefits
- OEM Mercury 300 hour service kit
- Fits Mercury 75HP, 90HP, and 115HP 1.7L FourStroke outboards
- For serial numbers 1B366823 through 2B094995
- Includes spark plugs, thermostat kit, impeller kit, alternator belt, and anodes
- Includes all parts Mercury recommends for scheduled 300 hour service
- Produced to Mercury Marine OEM specifications
- Does not include oil or gear lube
- Allows customers to choose preferred Mercury oil options separately
Service Kit Details
- Part Number: 8M0097857
- Application: Mercury 75-115HP 1.7L FourStroke Outboards
- Serial Range: 1B366823-2B094995
- Service Interval: 300 Hour Maintenance
- Oil Included: No
- Gear Lube Included: No
- Oil Capacity: Approximately 6 quarts, or 1 gallon plus 2 quarts
- Gear Lube Quantity: Approximately 1 quart
FAQ
What engines does this service kit fit?
This kit fits Mercury 75HP, 90HP, and 115HP 1.7L FourStroke outboards with serial numbers 1B366823 through 2B094995.
Does this kit include engine oil?
No. Engine oil is sold separately.
Does this kit include gear lube?
No. Gear lube is sold separately.
What maintenance items are included?
This kit includes an oil filter, fuel filter, gearcase drain seals, spark plugs,
thermostat kit, water impeller kit, alternator belt, and anodes.
How much oil does the engine use?
Approximately 6 quarts, or 1 gallon plus 2 quarts.
Is there a version with oil and gear lube included?
Yes. The Mercury 8M0097857-L kit with 10W30 oil and gear lube 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.
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.
- Maintenance kits must be new, unused, and in original packaging.
- Opened oil and lubricants may not be 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
8M0097857, Mercury 75HP 300 hour service kit, Mercury 90HP 300 hour service kit, Mercury 115HP 300 hour service kit, Mercury 1.7L FourStroke maintenance kit, Mercury serial 1B366823, Mercury serial 2B094995, Mercury spark plug kit, Mercury thermostat kit, Mercury impeller kit, Mercury alternator belt, Mercury anodes, Mercury 10W30 oil, Mercury 25W40 oil, Mercury Premium Gear Lube, Mercury High Performance Gear Lube, 8M0097857-L