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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.
Mercury Racing 2 Stroke Oil 8M0078011
The Mercury Racing 2 Stroke Oil 8M0078011 is a high-performance synthetic blend 2-stroke marine engine oil designed for demanding racing and high-output applications. Sold in a 1 gallon container, this formula is built to protect against heat, wear, and carbon buildup while helping two-stroke engines run clean and strong.
Product Overview
This oil is made for high-performance 2-stroke engines where extra protection matters. Mercury Racing describes it as a low-smoke, ashless formula designed to maximize horsepower while helping reduce deposits and wear in extreme operating conditions. It is recommended for use in oil-injected or premix applications.Â
Applications
| Application Type | Use |
|---|---|
| Marine Racing Engines | High performance 2-stroke outboard and marine racing applications |
| Premix Systems | Can be used in premix applications where racing 2-stroke oil is required |
| Oil Injection Systems | Can be used in compatible oil-injected 2-stroke engines |
| Other High Performance 2-Stroke Engines | Also recommended by Mercury Racing for certain air- or liquid-cooled 2-stroke powersports applications |
Product Features
- Synthetic blend high performance 2-stroke formula
- Low-smoke, ashless chemistry
- Helps protect against heat and wear
- Helps reduce carbon buildup and deposit formation
- Supports strong performance in high-load racing conditions
- Works in premix or oil-injected applications
Specifications and Standards
| Specification | Details |
|---|---|
| Part Number | 8M0078011 |
| Alternate OEM Format | 92-8M0078011 |
| Container Size | 1 Gallon |
| Formula Type | Synthetic Blend 2-Stroke Oil |
| Standards | TC-W3, JASO FD, ISO EGD |
What This Oil Is Used For
This oil is used to lubricate and protect high-performance 2-stroke engines operating under heavy load and high temperature conditions. It is a strong choice for customers running performance-oriented marine engines that need clean burn characteristics, reduced deposits, and dependable protection at high RPM. Mercury Racing states that the formula is intended to help maximize horsepower while controlling carbon buildup and wear.Â
FAQ
Is 8M0078011 a premix oil?
Yes. Mercury Racing says this oil can be used in premix applications as well as compatible oil-injected systems.Â
What type of oil is this?
It is a synthetic blend high performance 2-stroke marine engine oil made for racing and high-output 2-stroke applications.Â
What certifications does it meet?
Mercury Racing states that this oil exceeds TC-W3, JASO FD, and ISO EGD standards.Â
What size container is this?
This part number is sold as a 1 gallon container.Â
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 Part Numbers
8M0078011, 92-8M0078011, Mercury Racing 2 Stroke Oil, Mercury synthetic blend racing oil, Quicksilver racing 2 stroke oil, 1 gallon 2 stroke racing oil
813743A2
858085K01
858101Q01
858102Q01
99493A2
36382
8M0146206
886638
0502905
0765543
3050044
502905
765543
8M0061975
8M0154763
8M6013460
802426
802426Q
802426Q12
9-37803
