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Outboard Motor Parts | OEM & Aftermarket
Shop OEM and aftermarket outboard motor parts for Mercury, Yamaha, Suzuki, Honda, Johnson / Evinrude / E-TEC, Tohatsu / Nissan, and Chrysler / Force engines. Pro Marine USA carries parts for routine maintenance, troubleshooting, repair, and complete marine engine rebuilds.
Browse by outboard manufacturer or engine system, or use our OEM parts lookup to identify the correct part number before ordering. Find cooling, fuel, ignition, electrical, internal engine, lower unit, steering, trim, service kit, gasket, seal, and rebuild parts in one place.
Shop Outboard Parts by Manufacturer
Chrysler / Force Outboard Parts for Chrysler and Force outboard repair 
Honda Outboard Honda cooling, fuel, electrical, and engine parts 
Johnson / Evinrude / E-TEC Outboard Johnson, Evinrude, E-TEC, and OMC replacement parts 
Mercury Outboard Mercury and Mariner maintenance, repair, and rebuild parts 
Suzuki Outboard Suzuki service, lower unit, fuel, and engine parts 
Tohatsu / Nissan Outboard Tohatsu and Nissan outboard replacement parts 
Yamaha Outboard Yamaha maintenance, repair, lower unit, and rebuild parts Find the Correct Outboard Part
Not sure which part fits your engine? Start with the engine manufacturer, horsepower, model number, serial number, and year whenever available.
Our OEM parts lookup lets you view factory parts diagrams and identify the original part number for many popular outboard engines. Once you have the OEM number, search Pro Marine to find available OEM and aftermarket replacement options.
Use Our OEM Parts Lookup »Shop Outboard Parts by Engine System
Outboard engines use several interconnected systems. Select your manufacturer above to browse the exact categories available for your engine, including the following common repair and maintenance areas.
Common Outboard Problems and Where to Start
- Engine overheating: inspect the water pump, impeller, thermostat, pressure-control components, cooling passages, and engine anodes.
- Hard starting or rough idle: check fuel delivery, carburetor or injector operation, spark plugs, ignition components, filters, and intake sealing.
- Weak spark or no spark: test ignition coils, stators, switch boxes or ignition modules, sensors, wiring, grounds, and related electrical components.
- Low compression or poor power: inspect pistons, rings, cylinder condition, head and powerhead gaskets, bearings, and other internal engine components.
- Milky gear lube: inspect prop shaft, driveshaft, shift shaft, bearing carrier, and other lower unit seals for water intrusion.
- Lower unit or gearcase noise: inspect bearings, gears, clutch components, shafts, and gear lube condition before continued operation.
- Trim or steering problems: inspect hydraulic fluid level, seals, hoses, trim motors, pumps, steering cylinders, and mechanical connections.
Why Buy Outboard Parts from Pro Marine USA?
- OEM and aftermarket replacement options for major outboard engine brands.
- Marine engine parts for routine maintenance, professional repair, and complete rebuild projects.
- OEM diagram and part-number lookup tools to help identify the correct component before ordering.
- Dealer pricing available for qualified marine repair businesses and dealers.
- Large selection of service kits, engine parts, lower unit components, fuel system parts, electrical parts, steering, and rigging products.
- Same-day weekday shipping available on qualifying in-stock orders placed before the shipping cutoff.
OEM and Aftermarket Outboard Parts
OEM parts are supplied by the original engine manufacturer and are designed for the specific engine application. Aftermarket parts are replacement components produced by independent marine parts manufacturers and may provide additional availability or value for many common repairs.
Pro Marine carries both genuine OEM parts and quality aftermarket replacement parts for many outboard maintenance, repair, and rebuild applications. Always confirm fitment using the engine model, serial number, horsepower, year range, or OEM part number when available.
Frequently Asked Questions
How do I find the correct parts for my outboard motor?
Start by identifying the engine manufacturer, horsepower, model number, serial number, and year. Select the manufacturer above to browse by engine system, or use the OEM parts lookup to locate the original part number from a factory diagram.
Can I search Pro Marine by OEM part number?
Yes. If you already have the OEM part number, enter it 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.
What information should I have before ordering an outboard part?
Have the engine manufacturer, horsepower, model number, serial number, and year whenever possible. An OEM part number from the original component or parts diagram is especially helpful because visually similar parts may fit different engine families.
What is the difference between OEM and aftermarket outboard parts?
OEM parts come from the original engine manufacturer. Aftermarket parts are replacement components manufactured by other marine parts companies for compatible applications. Pro Marine carries both OEM and aftermarket options across many common outboard engine systems.
Are aftermarket outboard motor parts reliable?
Quality aftermarket marine parts are commonly used for maintenance, professional repair, and engine rebuilding. The best option depends on the application, manufacturer, availability, and customer preference.
Do you carry parts for older outboard motors?
Yes. Pro Marine carries parts for many older Mercury, Mariner, Johnson, Evinrude, Chrysler, Force, Yamaha, Honda, Suzuki, Nissan, and Tohatsu outboards. Availability varies by engine family and component.
What outboard parts are commonly replaced during routine maintenance?
Common maintenance items include engine oil, oil filters, fuel filters, spark plugs, water pump impellers, complete water pump kits, thermostats, gear lube, drain plug seals, anodes, and manufacturer-specific service kit components.
Fitment Tip: Outboard parts can vary by model, serial range, horsepower, and production year. Confirm the OEM part number or engine identification information whenever possible before ordering.
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
OEM Mercury 100 Hour Service Kit
Mercury L6 Verado 200HP-300HP Serial 2B144122 & Below Maintenance Kit
This genuine OEM Mercury maintenance kit contains routine service components for compatible Mercury L6 Verado 200HP-300HP FourStroke outboards.
Designed for scheduled 100 hour maintenance service on earlier L6 Verado models with serial numbers 2B144122 and below. This version does NOT include engine oil or gear lube.
Compatible Applications
| Engine Platform | Horsepower Range | Serial Range | Application Notes |
|---|---|---|---|
| Mercury L6 Verado EFI FourStroke | 200HP-300HP | 2B144122 & Below | Earlier L6 Verado models |
If your Mercury L6 Verado uses serial number 2B144123 and newer, you will typically need the newer service kit:
View Mercury L6 Verado 2B144123-Up Service Kit Without Oil & Gear Lube
Complete Kit With Oil & Gear Lube
If you would like the complete kit with Mercury 10W30 engine oil and Mercury High Performance gear lube, use this version:
View Complete Mercury 100 Hour Service Kit With Oil & Gear Lube
What is Included
| Qty | Included Component | Application |
|---|---|---|
| 1 | OEM Mercury Oil Filter | Routine engine oil service |
| 1 | OEM Mercury Fuel Filter | Fuel system maintenance |
| 1 | Drain Seals & Service Components | Routine maintenance service |
Recommended Gear Lube
Mercury High Performance Gear Lube Quart
Quantity Required: 2 Quarts
Recommended Engine Oil Options
| Oil Type | Product | Quantity Required |
|---|---|---|
| Mercury SAE 10W30 | Mercury 10W30 Engine Oil Gallon | 2 Gallons |
| Mercury 10W30 Synthetic Blend | Mercury 10W30 Synthetic Blend Gallon | 2 Gallons |
| Mercury 25W40 Synthetic Blend | Mercury 25W40 Synthetic Blend Gallon | 2 Gallons |
| Mercury 25W40 Engine Oil | Mercury 25W40 Engine Oil | 8 Quarts |
What This Service Kit is Used For
This OEM Mercury service kit provides the routine maintenance components needed for scheduled 100 hour service on compatible earlier Mercury L6 Verado 200HP-300HP FourStroke outboards.
Regular service helps support fuel system cleanliness, proper engine lubrication, cooling system reliability, and long-term offshore performance.
This kit is ideal for customers who want the OEM Mercury service components but prefer to choose engine oil and gear lube separately.
Some customers prefer to customize their maintenance kit and can use the lubricant links above to build the oil and gear lube combination that best matches their service preference.
Key Features and Benefits
- Genuine OEM Mercury 100 hour maintenance kit
- Fits Mercury L6 Verado 200HP-300HP outboards
- Designed for serial numbers 2B144122 and below
- Includes OEM Mercury service components
- Does not include engine oil or gear lube
- Allows customers to select preferred Mercury lubricants separately
- Ideal for routine 100 hour or annual service
- Helps support reliable offshore engine operation
Service Kit Details
- Kit Part Number: 8M0097858
- Brand: Mercury Marine
- Application: Mercury L6 Verado EFI FourStroke
- Horsepower Range: 200HP-300HP
- Serial Range: 2B144122 & Below
- Service Interval: 100 Hour Maintenance
- Oil Included: No
- Gear Lube Included: No
FAQ
What engines does this service kit fit?
This kit fits compatible Mercury L6 Verado EFI FourStroke 200HP-300HP outboards with serial numbers 2B144122 and below.
Does this kit include engine oil?
No. Engine oil must be purchased separately.
Does this kit include gear lube?
No. Gear lube must be purchased separately.
Which kit do I need for serial number 2B144123 and newer?
For Mercury L6 Verado models with serial number 2B144123 and newer, use the newer 8M0120657 service kit.
Is there a complete version of this kit with oil and gear lube?
Yes. The 8M0097858-L version includes Mercury 10W30 engine oil and Mercury High Performance gear lube.
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.
- 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
8M0097858, Mercury L6 Verado service kit, Mercury Verado 100 hour kit, Mercury 200HP Verado maintenance kit, Mercury 225HP Verado maintenance kit, Mercury 250HP Verado maintenance kit, Mercury 275HP Verado maintenance kit, Mercury 300HP Verado maintenance kit, Mercury Verado serial 2B144122 and below, Mercury 100 hour maintenance kit, Mercury Verado kit without oil, Mercury gear lube, Mercury 10W30 oil, Mercury 25W40 oil, Mercury High Performance Gear Lube
OEM Mercury 75-115HP 1.7L 100 Hour Service Kit
Mercury 75-115HP 1.7L 100 Hour Kit - Serial 1B366823-2B094995
The Mercury 8M0097856 100 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 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 | 1.7L FourStroke Outboard | 1B366823-2B094995 |
This 100 hour service kit is for Mercury 75-115HP 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 |
| Oil Drain Seal | Engine oil drain service |
| Gearcase Drain Seals | Gearcase lubricant service |
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 uses 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
For customers who want a more complete service package, the Mercury 8M0097856-L kit includes the 100 hour service components with 10W30 engine oil and gear lube.
View Kit With Oil & Gear LubeComplete Your Service
100 Hour Kit With Oil & Gear Lube
Mercury 100 hour service kit with 10W30 oil and gear lube for compatible 75-115HP 1.7L outboards.
View Product
300 Hour Kit Without Oil
Mercury 300 hour service kit for compatible 75-115HP 1.7L outboards. Oil and gear lube sold separately.
View Product
300 Hour Kit With Oil & Gear Lube
Mercury 300 hour service kit with 10W30 oil and gear lube for compatible 75-115HP 1.7L outboards.
View Product
Side Pocket Anode Kit
Aluminum side pocket anode kit used in this service application. Quantity used: 2.
View Product
Transom Anode Bar Kit
Aluminum transom anode bar kit used in this service application. Quantity used: 1.
View Product
Mercury Aluminum Anode Kit
Complete aluminum anode kit option for compatible Mercury outboards. Helps protect against galvanic corrosion.
View ProductWhat This Service Kit is Used For
The Mercury 8M0097856 service kit is used for routine 100 hour maintenance on compatible Mercury 75-115HP 1.7L FourStroke outboards with serial numbers 1B366823 through 2B094995.
Routine service helps support oil filtration, fuel system maintenance, gearcase lubricant service, and long-term engine reliability.
Key Features and Benefits
- OEM Mercury 100 hour service kit
- Fits Mercury 75-115HP 1.7L FourStroke outboards
- For serial numbers 1B366823 through 2B094995
- Includes oil filter, fuel filter, oil drain seal, and gearcase drain seals
- Does not include engine oil
- Does not include gear lube
- Allows customers to choose 10W30, 25W40, synthetic blend, or full synthetic oil separately
- Pairs with 300 hour service kits and aluminum anode options
Service Kit Details
- Part Number: 8M0097856
- Application: Mercury 75-115HP 1.7L FourStroke Outboards
- Serial Range: 1B366823-2B094995
- 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
- Related Kit With Oil & Gear Lube: 8M0097856-L
FAQ
What engines does this service kit fit?
This kit fits Mercury 75-115HP 1.7L FourStroke outboards with serial numbers 1B366823 through 2B094995.
Does this kit include oil?
No. This version does not include engine oil.
Does this kit include gear lube?
No. Gear lube is sold separately.
What parts are included?
This kit includes an oil filter, fuel filter, oil drain seal, and gearcase drain seals.
How much oil does the engine use?
Approximately 6 quarts, or 1 gallon plus 2 quarts.
How much gear lube is needed?
Approximately 1 quart of gear lube is used for the gearcase service.
Is there a version with oil and gear lube included?
Yes. The Mercury 8M0097856-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
8M0097856, Mercury 75HP service kit, Mercury 90HP service kit, Mercury 115HP service kit, Mercury 75-115HP 100 hour kit, Mercury 1.7L FourStroke service kit, Mercury serial 1B366823, Mercury serial 2B094995, Mercury 100 hour maintenance kit, oil filter, fuel filter, oil drain seal, gearcase drain seals, Mercury 10W30 oil, Mercury 25W40 oil, Mercury Premium Gear Lube, Mercury High Performance Gear Lube, 8M0097856-L, 8M0097857, 8M0097857-L, 6068K, 6249K, 8M0107549
OEM Mercury 25W40 Synthetic Blend Oil Change Kit
Mercury L4 150HP, 175HP & 200HP Verado Oil Change Kit
This OEM Mercury oil change kit contains the routine maintenance components needed to service compatible Mercury L4 150HP, 175HP, and 200HP Verado outboards.
The kit includes six liters of Mercury SAE 25W40 Synthetic Blend 4-stroke marine engine oil, premium Mercury oil filter, drain plug seal, and service instructions to help simplify routine engine oil maintenance.
Compatible Applications
| Brand | Horsepower | Engine Type | Application Notes |
|---|---|---|---|
| Mercury | 150HP | L4 Verado FourStroke | Select compatible models |
| Mercury | 175HP | L4 Verado FourStroke | Select compatible models |
| Mercury | 200HP | L4 Verado FourStroke | Select compatible models |
What is Included
| Qty | Included Part | Part Number |
|---|---|---|
| 1 | Premium Mercury Oil Filter | Included |
| 6 | Mercury SAE 25W40 Synthetic Blend 4-Stroke Marine Engine Oil | Included |
| 1 | Drain Plug Seal | Included |
| 1 | Mercury Oil Change Instructions | Included |
What This Kit is Used For
This Mercury oil change kit provides the routine maintenance parts needed to perform an engine oil and oil filter service on compatible Mercury L4 Verado FourStroke outboards.
Mercury SAE 25W40 Synthetic Blend marine engine oil is formulated specifically for marine environments and includes advanced corrosion inhibitors designed to help protect internal engine components during operation and storage.
The synthetic blend formulation helps maintain lubricity and viscosity retention during high-temperature operation and demanding RPM ranges common in high-performance marine applications.
Regular oil and filter maintenance helps support proper lubrication, reduce internal engine wear, and maintain long-term engine reliability.
Key Features and Benefits
- OEM Mercury oil change kit for L4 Verado FourStroke outboards
- Fits Mercury 150HP, 175HP, and 200HP Verado models
- Includes six liters of Mercury SAE 25W40 Synthetic Blend marine engine oil
- Includes premium Mercury oil filter
- Includes drain plug seal and service instructions
- Marine-specific additive package with advanced corrosion inhibitors
- Synthetic blend formulation designed for demanding marine operation
- Convenient all-in-one maintenance kit
Oil Kit Details
- Kit Part Number: 8M0188358
- Engine Compatibility: Mercury L4 150HP, 175HP & 200HP Verado
- Oil Type: Mercury SAE 25W40 Synthetic Blend 4-Stroke Marine Engine Oil
- Oil Quantity: 6 Liters
- Included Components: Oil filter, engine oil, drain plug seal, and instructions
- Service Type: Routine engine oil and oil filter maintenance
FAQ
What engines does this oil change kit fit?
This kit fits compatible Mercury L4 150HP, 175HP, and 200HP Verado outboards.
What oil is included in this kit?
This kit includes Mercury SAE 25W40 Synthetic Blend 4-stroke marine engine oil.
Why use synthetic blend marine engine oil?
Synthetic blend marine oils help provide improved lubrication stability,
corrosion protection, and viscosity retention during high-load and
high-temperature marine operation.
Does this kit include a Mercury oil filter?
Yes. This kit includes a premium Mercury oil filter for compatible
L4 Verado outboards.
Can I perform this oil change service myself?
Yes. Many boat owners perform routine oil and filter maintenance themselves
using basic hand tools and the proper service parts. Always follow your
engine manufacturer’s service procedures and verify proper oil capacity
before operation.
If you do not feel comfortable performing maintenance yourself, a Mercury-certified marine technician can typically complete this service quickly and help verify your engine is operating properly.
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.
- 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
8M0188358, Mercury Verado oil kit, Mercury 150HP Verado oil change kit, Mercury 175HP Verado oil change kit, Mercury 200HP Verado oil change kit, Mercury L4 Verado maintenance kit, Mercury 25W40 synthetic blend oil kit
8M0169542
8M0188358
OEM Mercury 10W30 Synthetic Blend Oil Change Kit
Mercury & Mariner 150HP FourStroke Oil Change Kit
This OEM Mercury oil change kit contains the routine maintenance components needed to service compatible Mercury and Mariner 150HP FourStroke outboards.
The kit includes six liters of Mercury SAE 10W30 Synthetic Blend 4-stroke marine engine oil, premium Mercury oil filter, oil drain hose, and service instructions to help simplify routine engine oil maintenance.
Compatible Applications
| Brand | Horsepower | Engine Type | Application Notes |
|---|---|---|---|
| Mercury | 150HP | FourStroke | Select compatible models |
| Mariner | 150HP | FourStroke | Select compatible models |
What is Included
| Qty | Included Part | Part Number |
|---|---|---|
| 1 | Premium Mercury Oil Filter | Included |
| 6 | Mercury SAE 10W30 Synthetic Blend 4-Stroke Marine Engine Oil | Included |
| 1 | Oil Drain Hose | Included |
| 1 | Mercury Oil Change Instructions | Included |
We also stock the Quicksilver version of this oil change kit using standard SAE 10W30 marine engine oil.
View Quicksilver 10W30 Oil Change Kit
What This Kit is Used For
This Mercury oil change kit provides the routine maintenance parts needed to perform an engine oil and oil filter service on compatible Mercury and Mariner 150HP FourStroke outboards.
Mercury SAE 10W30 Synthetic Blend marine engine oil is formulated specifically for marine environments and includes advanced corrosion inhibitors designed to help protect internal engine components during operation and storage.
The synthetic blend oil formulation helps maintain lubricity and viscosity retention during high-temperature operation and demanding RPM ranges common in marine environments.
Some customers prefer OEM Mercury maintenance kits while others choose Quicksilver service kits depending on maintenance preferences and budget.
Key Features and Benefits
- OEM Mercury oil change kit for Mercury and Mariner 150HP FourStroke outboards
- Includes six liters of Mercury SAE 10W30 Synthetic Blend marine engine oil
- Includes premium Mercury oil filter
- Includes oil drain hose and service instructions
- Marine-specific additive package with advanced corrosion inhibitors
- Synthetic blend formulation designed for demanding marine operation
- Supports proper lubrication and long-term engine protection
- Convenient all-in-one maintenance kit
Oil Kit Details
- Kit Part Number: 8M0188357
- Engine Compatibility: Mercury & Mariner 150HP FourStroke
- Oil Type: Mercury SAE 10W30 Synthetic Blend 4-Stroke Marine Engine Oil
- Oil Quantity: 6 Liters
- Included Components: Oil filter, engine oil, oil drain hose, and instructions
- Service Type: Routine engine oil and oil filter maintenance
FAQ
What engines does this oil change kit fit?
This kit fits compatible Mercury and Mariner 150HP FourStroke outboards.
What is the difference between this kit and the Quicksilver version?
This OEM Mercury kit includes Mercury SAE 10W30 Synthetic Blend marine engine oil, while the Quicksilver version uses standard SAE 10W30 marine engine oil.
How much oil is included in this kit?
This kit includes six liters of Mercury SAE 10W30 Synthetic Blend 4-stroke marine engine oil.
Does this kit include a drain hose?
Yes. This kit includes an oil drain hose to help make routine oil service cleaner and easier.
Can I perform this oil change service myself?
Yes. Many boat owners perform routine oil and filter maintenance themselves using basic hand tools and the proper service parts. Always follow your engine manufacturer’s service procedures and verify proper oil capacity before operation.
If you do not feel comfortable performing maintenance yourself, a Mercury-certified marine technician can typically complete this service quickly and help verify your engine is operating properly.
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.
- 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
8M0188357, Mercury 150HP oil change kit, Mariner 150HP oil change kit, Mercury synthetic blend oil kit, Mercury 10W30 oil change kit, Mercury FourStroke oil kit, Mercury oil drain hose kit, Mercury synthetic blend maintenance kit
8M0107513
8M0188357
859905
92901-14200-00
92902-14200-00
92903-14200-00
92990-14200-00
OEM Mercury 150HP EFI 300 Hour Service Kit With 10W30 Oil & Gear Lube
Mercury 150HP FourStroke EFI 300 Hour Kit - Serial 1B905505-Present
The Mercury 8M0094233-L 300 hour service kit is designed for Mercury 150HP FourStroke EFI outboards with serial numbers 1B905505 and higher.
This complete OEM Mercury maintenance kit includes the major components commonly replaced during scheduled 300 hour service intervals along with Mercury 10W30 engine oil and Mercury gear lube.
Compatible Applications
| Brand | Horsepower | Engine Type | Serial Range |
|---|---|---|---|
| Mercury | 150HP | FourStroke EFI Outboard | 1B905505 & Higher |
This 300 hour service kit is for Mercury 150HP FourStroke EFI outboards with serial numbers 1B905505 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 Filters | 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 |
| Mercury 10W30 Engine Oil | 1 gallon plus 3 quarts included |
| Mercury Gear Lube | Gearcase lubricant included |
Oil & Gear Lube Included
Engine oil included: Mercury 10W30 engine oil - 1 gallon plus 3 quarts.
Gear lube included: Mercury gear lube for gearcase service.
Want to Use a Different Oil?
300 Hour Kit Without Oil
Some customers prefer using a different oil viscosity, synthetic blend, full synthetic oil, or already have oil and gear lube available. The standard Mercury 8M0094233 300 hour service kit without oil or gear lube is available separately.
View Kit Without OilWhat This Service Kit is Used For
The Mercury 8M0094233-L service kit is used for major 300 hour maintenance on compatible Mercury 150HP FourStroke EFI outboards with serial numbers 1B905505 and higher.
This service interval commonly includes ignition system maintenance, cooling system service, water pump service, corrosion protection, fuel filtration, and engine oil service.
Key Features and Benefits
- OEM Mercury 300 hour service kit
- Fits Mercury 150HP FourStroke EFI outboards
- For serial numbers 1B905505 and higher
- Includes spark plugs, thermostat kit, impeller kit, and anodes
- Premium Mercury oil and fuel filters
- Heavy-duty corrosion-resistant filter housings
- Includes Mercury 10W30 engine oil
- Includes Mercury gear lube
- Convenient all-in-one maintenance package
Service Kit Details
- Part Number: 8M0094233-L
- Base Mercury Kit Number: 8M0094233
- Application: Mercury 150HP FourStroke EFI Outboards
- Serial Range: 1B905505 & Higher
- Service Interval: 300 Hour Maintenance
- Oil Included: Yes - Mercury 10W30
- Oil Quantity Included: 1 gallon plus 3 quarts
- Gear Lube Included: Yes
- Included Components: Oil filter, fuel filters, gearcase drain seals, spark plugs, thermostat kit, water impeller kit, alternator belt, anodes, 10W30 oil, gear lube
FAQ
What engines does this service kit fit?
This kit fits Mercury 150HP FourStroke EFI outboards with serial numbers 1B905505 and higher.
Does this kit include engine oil?
Yes. This version includes Mercury 10W30 engine oil.
How much oil is included?
This kit includes 1 gallon plus 3 quarts of Mercury 10W30 engine oil.
Does this kit include gear lube?
Yes. Mercury gear lube is included for the gearcase service.
Is there a version without oil and gear lube?
Yes. The Mercury 8M0094233 service kit without oil is linked above.
What maintenance items are included?
This kit includes oil and fuel filters, spark plugs, thermostat kit,
impeller kit, alternator belt, anodes, gearcase seals, oil, and gear lube.
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
8M0094233-L, 8M0094233, Mercury 150HP 300 hour kit with oil, Mercury 150HP EFI maintenance kit, Mercury FourStroke service kit, Mercury 150HP serial 1B905505, Mercury thermostat kit, Mercury impeller kit, Mercury spark plugs, Mercury alternator belt, Mercury anode kit, Mercury 10W30 oil, Mercury gear lube, Mercury EFI 300 hour maintenance
OEM Mercury 100-Hour Service Kit with Oil & Gear Lube
Mercury 8M0149929-L Service Kit for 175HP-300HP V6 & V8 Outboards
The Mercury 8M0149929-L 100-Hour Service Kit is made for newer Mercury 3.4L V6 and 4.6L V8 175HP-300HP FourStroke outboards.
This complete version includes the service kit, Mercury 10W30 engine oil, and gear lube, making it a convenient all-in-one 100-hour maintenance package.
Compatible Applications
| Engine Family | Horsepower | Engine Size | Application Notes |
|---|---|---|---|
| Mercury FourStroke | 175HP-225HP | 3.4L V6 | Fits new-generation Mercury V6 FourStroke outboards |
| Mercury FourStroke | 225HP-300HP | 4.6L V8 | Fits new-generation Mercury V8 FourStroke outboards |
This version includes engine oil and gear lube. Always follow your owner’s manual for the correct service schedule, oil capacity, and maintenance procedure for your exact model.
What is Included
- OEM Mercury oil filter
- OEM Mercury fuel filter
- Gearcase drain plug seals
- Mercury 10W30 engine oil
- Mercury gear lube
OEM Part Numbers & Cross References
| Brand / Type | Part Number |
|---|---|
| Mercury OEM | 8M0149929-L |
| Related Kit Without Oil | 8M0149929 |
| Application | 100-Hour Service Kit with Oil & Gear Lube |
Want to Choose a Different Oil?
This kit includes Mercury 10W30 engine oil. Some customers prefer to choose a different Mercury oil option or build their own oil quantity.
If you would rather purchase the service kit without oil, see:
Choose the Correct Anode Kit
These engines use different anode kits depending on whether your outboard has a CMS (Conventional MidSection) or AMS (Advanced MidSection) configuration.
CMS Midsection Anode Kit
Fits compatible Mercury 3.4L V6 CMS, 4.6L V8 CMS, and Mercury Racing outboards.
AMS Midsection Anode Kit
Fits compatible Mercury 4.6L V8 Verado AMS and V8 Racing outboards.
Complete Your Service
300 Hour V8 CMS Service Kit
OEM Mercury 300-hour maintenance kit for compatible V8 CMS outboards.
View / Add to Cart
300 Hour V8 AMS Service Kit
OEM Mercury 300-hour maintenance kit for compatible V8 AMS outboards.
View / Add to Cart
300 Hour V6 Service Kit
OEM Mercury 300-hour maintenance kit for compatible V6 outboards.
View / Add to Cart
300 Hour V8 CMS Kit With Oil
Complete 300-hour Mercury V8 CMS service kit including engine oil.
View / Add to Cart
300 Hour V8 AMS Kit With Oil
Complete 300-hour Mercury V8 AMS service kit including engine oil.
View / Add to Cart
300 Hour V6 Kit With Oil
Complete 300-hour Mercury V6 service kit including engine oil.
View / Add to CartWhat This Service Kit is Used For
This Mercury 100-hour maintenance kit helps simplify routine service by combining the common replacement items, engine oil, and gear lube needed for scheduled maintenance.
Periodic service helps protect your engine, maintain performance, and support long-term reliability.
Always follow your owner’s manual for the correct service interval, fluid quantities, and maintenance procedure.
Key Features and Benefits
- Genuine OEM Mercury 100-hour maintenance kit
- Includes Mercury 10W30 engine oil
- Includes Mercury gear lube
- Fits Mercury 3.4L V6 175-225HP FourStroke outboards
- Fits Mercury 4.6L V8 225-300HP FourStroke outboards
- Includes oil filter, fuel filter, and gearcase drain seals
- Convenient all-in-one maintenance package
- Produced to Mercury OEM specifications
Service Kit Details
- Brand: Mercury / Quicksilver
- Part Number: 8M0149929-L
- Part Type: 100-Hour Service Kit with Oil & Gear Lube
- Application: Mercury 3.4L V6 & 4.6L V8 FourStroke Outboards
- Horsepower Range: 175HP-300HP
- Includes Oil: Yes
- Includes Gear Lube: Yes
- Quantity Sold: Kit
FAQ
What engines does Mercury 8M0149929-L fit?
This kit fits new-generation Mercury 3.4L V6 175-225HP and 4.6L V8 225-300HP FourStroke 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 maintenance items are included?
The kit includes an oil filter, fuel filter, gearcase drain plug seals, engine oil, and gear lube.
What if I want to use a different oil?
The related Mercury 8M0149929 kit does not include oil, allowing customers to choose their preferred Mercury oil separately.
Which anode kit should I use with this service?
Use the correct anode kit based on your midsection: CMS uses 8M0205953 and AMS uses 8M0205955.
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
8M0149929-L, Mercury 100 hour service kit with oil, Mercury V6 service kit, Mercury V8 service kit, Mercury 3.4L V6 maintenance kit, Mercury 4.6L V8 maintenance kit, Mercury 175HP service kit, Mercury 200HP service kit, Mercury 225HP service kit, Mercury 250HP service kit, Mercury 300HP service kit, Mercury oil filter fuel filter kit, Mercury service kit with gear lube, Mercury 10W30 oil kit, Mercury gear lube kit, 8M0149929, 8M0205953, 8M0205955
Mercury Verado Power Steering
Pro Marine Mercury Verado Gen A / Gen B Reman Power Steering Pump 8M0134736P
This Pro Marine replacement pump is built for Mercury Verado Gen A / Gen B power steering pump applications. It replaces the Gen B / A Verado power steering pump and cross references Mercury numbers 8M0134359 and 8M0134736.
This replacement is designed to help customers service an existing Gen A / B system without buying all of the parts required for a Gen C conversion. You must reuse the old case from your current unit. Includes a 1-year warranty. Â
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 | Direct replacement option for Gen B / A pump service where 8M0134736 is being replaced. |
Important Fitment Note
This Pro Marine replacement pump requires the old case from your current unit. Before ordering, identify whether your boat has a Gen A, Gen B, or Gen C Verado power steering system and compare the current pump number to the cross references below.
OEM & Cross Reference Numbers
| Pro Marine Item Number | 8M0134736P |
|---|---|
| Manufacturer Item | 8M0134736 |
| Cross Reference Numbers | 8M0134359, 8M0134736 |
| Manufacturer | Pro Marine |
| Warranty | 1 year |
Gen B Replacement vs. Gen C Conversion
Converting a Gen A / Gen B Verado steering system to Gen C can require several additional parts. Current conversion items listed on the product page include a pump assembly, adapter hose, power steering harness with fuse, signal wire conversion, and an automatic power source for some multi-engine boats.
| Gen C Conversion Item | 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 twins, triples, or other multi-engine rigs | $268.43 |
Want to compare both paths before ordering? Visit the Gen A / B to Gen C Verado Power Steering Conversion Walkthrough.
Related Verado Steering Parts
Automatic Power Source
Mercury Verado automatic power source used on some multi-engine steering systems and Gen C conversion checks.
View 8M0149746
Signal Drive Harness Assembly
Mercury power steering signal drive harness assembly for Verado steering system service.
View 8M0026568
Helm Power Steering Std 50Cm
Mercury Verado non-tilt power steering helm for Verado hydraulic steering systems.
View 8M0137449
Helm Power Steering With Tilt
Mercury Verado 50cm power steering helm with tilt for Verado steering systems.
View 8M0137451
Damper Hose Kit Gen B
Mercury Verado Gen B power steering damper hose kit for steering hose service.
View 897643A01
Mercury Power Steering Fluid
Mercury full synthetic power steering fluid for Verado steering system service and refill.
View 858077Special Order Hose Numbers
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 aftermarket replacement for Mercury Verado Gen A / Gen B power steering pumps.
- Cross references Mercury 8M0134359 and 8M0134736.
- Designed to help avoid purchasing every part required for a full Gen C conversion.
- Requires reuse of the old case from the current pump unit.
- Includes 1-year warranty.
- Gen C conversion walkthrough and related steering components are linked for planning a full upgrade.
Product Details
| Item Number | 8M0134736P |
|---|---|
| Product Type | Verado power steering pump replacement |
| Brand | Pro Marine |
| OEM or Aftermarket | Aftermarket |
| Required Reuse Item | Old case from current pump unit |
FAQ
Is this a Gen A / Gen B Verado replacement pump?
Yes. This Pro Marine pump is listed as a Mercury Verado Gen B / A direct replacement and cross references 8M0134359 and 8M0134736.
Do I need to reuse my old pump case?
Yes. This replacement requires the old case from your current unit.
Should I replace this pump or convert to Gen C?
If you want to compare both options, review the Gen A / B to Gen C conversion walkthrough. A Gen C conversion can require multiple added parts, while this pump is intended as a Gen A / B replacement option.
Are some hoses special order?
Yes. Helm-to-pump and cylinder-to-helm hose lengths are listed as special order and must be ordered by calling Pro Marine.
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 pump, Verado Gen B pump, Verado Gen A pump, Pro Marine Verado steering pump, Gen B to Gen C Verado conversion, Verado hydraulic steering pump.
Searchable Part Numbers
8M0134736P, 8M0134736, 8M0134359, 8M0149746, 8M0026568, 8M0137449, 8M0137451, 897643A01, 858077, 858002K01, 858077KC1, 858077K01
8M0134736
OEM Mercury 40-60HP 300 Hour Service Kit
Mercury 40-60HP 300 Hour Kit BigFoot / Command Thrust
The Mercury 8M0090559 300 Hour Service Kit is for compatible Mercury 40HP, 50HP, and 60HP FourStroke EFI outboards with serial numbers 1C000001 and higher equipped with BigFoot or Command Thrust gearcases.
This 300 hour maintenance kit includes the service components commonly replaced during extended scheduled maintenance. Oil and gear lube are sold separately.
Compatible Applications
| Brand | Horsepower | Engine Type | Gearcase Type | Serial Range |
|---|---|---|---|---|
| Mercury | 40HP | FourStroke EFI Outboard | BigFoot / Command Thrust | 1C000001 & Higher |
| Mercury | 50HP | FourStroke EFI Outboard | BigFoot / Command Thrust | 1C000001 & Higher |
| Mercury | 60HP | FourStroke EFI Outboard | BigFoot / Command Thrust | 1C000001 & Higher |
This Mercury 300 hour service kit fits Mercury 40-60HP FourStroke EFI outboards with serial numbers 1C000001 and higher and BigFoot or Command Thrust gearcases only.
If your motor has a standard gearcase, use the standard gearcase 300 hour kit linked below instead.
Prefer to Buy the Kit with Oil & Gear Lube?
Mercury 300 Hour Kit With Oil & Gear Lube - BigFoot / Command Thrust
Prefer a complete maintenance package? Order the Mercury 8M0090559-L 300 Hour Service Kit with engine oil and gear lube included.
View Complete KitOil Capacity & Recommended Oil Options
Mercury 40-60HP FourStroke EFI engines use approximately 4 quarts of engine oil, or 1 gallon.
| Oil Type | Product | Quantity Required |
|---|---|---|
| Mercury 10W30 | Mercury 10W30 Engine Oil - Quart | 4 quarts |
| Mercury 10W30 | Mercury 10W30 Engine Oil - Gallon | 1 gallon |
| Mercury 10W30 Synthetic Blend | Mercury 10W30 Synthetic Blend - Quart | 4 quarts |
| Mercury 10W30 Synthetic Blend | Mercury 10W30 Synthetic Blend - Gallon | 1 gallon |
| Mercury 10W30 Full Synthetic | Mercury 10W30 Full Synthetic - Gallon | 1 gallon |
| Mercury 25W40 | Mercury 25W40 Engine Oil - Quart | 4 quarts |
| Mercury 25W40 Synthetic Blend | Mercury 25W40 Synthetic Blend - Quart | 4 quarts |
| Mercury 25W40 Synthetic Blend | Mercury 25W40 Synthetic Blend - Gallon | 1 gallon |
Recommended Gear Lube
Gear Lube Quantity:
BigFoot and Command Thrust gearcases may require more gear lube than standard gearcases.
Always verify the fill quantity in your Mercury owner's manual before servicing.
| Gear Lube Type | Product |
|---|---|
| Mercury High Performance Gear Lube | Mercury High Performance Gear Lube - Quart |
| Mercury Premium Gear Lube 80W90 | Mercury Premium Gear Lube 80W90 - Quart |
Standard Gearcase 300 Hour Kits
300 Hour Kit - Standard Gearcase
Use this 300 hour kit for compatible Mercury 40-60HP EFI models with standard gearcases. Oil and gear lube sold separately.
View Product
300 Hour Kit With Oil - Standard Gearcase
Complete 300 hour kit with 10W30 oil and gear lube for compatible standard gearcase models.
View ProductWhat This Service Kit is Used For
The Mercury 8M0090559 service kit is used for 300 hour maintenance on compatible Mercury 40HP, 50HP, and 60HP FourStroke EFI outboards with serial numbers 1C000001 and higher equipped with BigFoot or Command Thrust gearcases.
A 300 hour service is a more complete maintenance interval than a basic 100 hour service and helps support fuel system performance, cooling system reliability, ignition performance, lubrication service, and long-term outboard protection.
Key Features and Benefits
- OEM Mercury 300 hour service kit
- Fits Mercury 40HP, 50HP, and 60HP FourStroke EFI outboards
- For serial numbers 1C000001 and higher
- For BigFoot and Command Thrust gearcase models
- Oil and gear lube sold separately
- Kit with oil and gear lube available separately
- Standard gearcase 300 hour kits linked above
Service Kit Details
- Part Number: 8M0090559
- Application: Mercury 40-60HP FourStroke EFI Outboards
- Serial Range: 1C000001 & Higher
- Gearcase Type: BigFoot / Command Thrust
- Service Interval: 300 Hour Maintenance
- Oil and Gear Lube: Sold Separately
FAQ
What engines does this 300 hour kit fit?
This kit fits Mercury 40HP, 50HP, and 60HP FourStroke EFI outboards
with serial numbers 1C000001 and higher equipped with BigFoot or
Command Thrust gearcases.
Does this kit fit standard gearcase models?
No. This kit is for BigFoot and Command Thrust gearcase models.
Standard gearcase 300 hour kits are linked above.
Does this kit include oil and gear lube?
Oil and gear lube are sold separately.
Is there a version with oil and gear lube included?
Yes. The Mercury 8M0090559-L kit with oil and gear lube is linked above.
How do I know which 300 hour kit to order?
Choose this kit for BigFoot or Command Thrust gearcases. Choose the
standard gearcase kit if your motor does not have a BigFoot or Command
Thrust gearcase.
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
8M0090559, 8M0090559-L, 8M0113483, 8M0113483-L, Mercury 40HP 300 hour kit, Mercury 50HP 300 hour kit, Mercury 60HP 300 hour kit, Mercury 40-60HP 300 hour service kit, Mercury BigFoot 300 hour kit, Mercury Command Thrust 300 hour kit, Mercury 40-60HP BigFoot service kit, Mercury 40-60HP Command Thrust service kit, Mercury serial 1C000001 300 hour kit, Mercury 1C000001 and higher maintenance kit, Mercury standard gearcase 300 hour kit, Mercury 300 hour kit oil and gear lube sold separately