S2K Commerce - Products Dropdown
Actions
S2K Commerce - Order Entry
Actions
Yamaha Outboard Parts
Shop OEM and aftermarket Yamaha outboard parts for maintenance, repair, troubleshooting, and complete engine rebuild projects. Browse Yamaha marine parts by system, including cooling, fuel, electrical, internal engine, lower unit, steering, trim, and routine service parts.
Pro Marine USA carries parts for Yamaha 2-stroke, Four Stroke, VMAX SHO, HPDI, and offshore outboards. Verify your engine model code, serial information, or OEM part number whenever possible before ordering.
Shop Yamaha Outboard Parts by System
- Complete Powerheads
- Control Cables & Boxes
- Cooling System
- Cowlings & Components
- Electrical System
- Engine Oil
- Engine Rebuild Kits
- Fuel & Carburetion System
- Intake System
- Internal Engine Components
- Lower Unit Components
- Oiling System
- Paints
- Service & Oil Change Kits
- Service Manuals
- Steering Systems
- Throttle Components
- Transom & Midsection
- Trim System
Rebuilding a Yamaha Outboard?
Shop internal Yamaha engine rebuild parts by engine family to quickly find pistons, rings, cylinder sleeves, bearings, connecting rods, gaskets, valves, and other powerhead components for your application.
Shop Engine Rebuild Parts by Model »Find the Correct Yamaha Outboard Part
Yamaha parts can vary by horsepower, model code, production year, and engine family. Use the OEM parts lookup to identify the original Yamaha part number from the factory diagram before ordering.
Once you have the OEM number, search Pro Marine USA for available genuine Yamaha and aftermarket replacement options.
Use Our OEM Parts Lookup »Common Yamaha Outboard Engine Families
Pro Marine USA supports many popular Yamaha outboards across a wide horsepower range. Always confirm your exact model information before ordering parts.
- Portable and Midrange: Yamaha 2HP through 60HP 2-stroke and Four Stroke applications
- Inline Four-Cylinder: popular Yamaha F70 through F150 platforms
- V6 Four Stroke: Yamaha V6 engine families across multiple horsepower ranges
- VMAX SHO: performance-oriented Yamaha SHO applications
- HPDI: high-pressure direct-injection Yamaha 2-stroke applications
- High-Horsepower Offshore: large-displacement Yamaha offshore platforms
Common Yamaha Outboard Repair Areas
- Engine overheating: water pumps, impellers, thermostats, cooling passages, and engine anodes.
- Hard starting or rough running: fuel pumps, filters, injectors, carburetors, spark plugs, ignition components, and intake components.
- Charging or ignition problems: ignition coils, stators, rectifier/regulators, sensors, wiring, and grounds.
- Low compression or power loss: pistons, rings, cylinders, valves, bearings, gaskets, and other internal engine components.
- Lower unit problems: seals, bearings, gears, shafts, and gear lube components.
- Trim or steering problems: trim motors, hydraulic components, steering cylinders, hoses, and seals.
Why Buy Yamaha Outboard Parts from Pro Marine USA?
- Genuine Yamaha OEM and aftermarket replacement options for many applications.
- Parts for maintenance, professional repair, engine rebuilds, lower units, fuel systems, electrical systems, steering, and trim.
- OEM diagram and part-number lookup tools to help identify the correct component.
- Dealer pricing available for qualified marine businesses.
- Large selection of Yamaha service kits and repair components.
- Fast weekday shipping on qualifying in-stock orders.
Frequently Asked Questions
How do I find the correct Yamaha outboard part?
Start with the engine horsepower, model code, production year, and available identification information. Use the OEM parts lookup to identify the original Yamaha part number whenever possible.
Can I search Yamaha parts by OEM part number?
Yes. Enter the Yamaha OEM part number into the Pro Marine USA site search to locate available OEM and aftermarket replacement options.
Do Yamaha outboard parts vary by model and year?
Yes. Yamaha may use different components on engines with the same horsepower depending on model code, engine family, and production range.
Do you carry Yamaha engine rebuild parts?
Yes. Pro Marine USA carries pistons, rings, bearings, connecting rods, cylinder sleeves, gaskets, valves, and other internal engine components for many Yamaha applications. You can also shop our Engine Rebuild Parts by Model section to narrow parts by engine family.
Do you carry both OEM and aftermarket Yamaha parts?
Yes. Pro Marine USA offers genuine Yamaha parts along with aftermarket replacement options for many Yamaha maintenance, repair, and rebuild applications.
What Yamaha parts are commonly replaced during routine maintenance?
Common maintenance items include engine oil, oil filters, fuel filters, spark plugs, water pump kits, impellers, thermostats, gear lube, drain plug seals, anodes, and model-specific service kit components.
Fitment Tip: Yamaha parts can vary by model code, engine family, production year, and horsepower. Confirm the OEM part number or complete engine identification information whenever possible before ordering.
6CE-44352-00-00
6CE-44352P
8M0175392
8M6010334
Pro Marine Thermostat Assembly
Aftermarket Yamaha 4.2L V6 Thermostat
This Pro Marine thermostat assembly is an aftermarket replacement for Yamaha OEM part number 6CE-12411-00-00 and Mercury cross reference 8M6012799.
The thermostat regulates engine cooling system temperature to help maintain proper engine operating temperature, fuel efficiency, corrosion protection, and reliable engine performance.
Compatible Applications
| Engine Range | Engine Type | System | Application Notes |
|---|---|---|---|
| Yamaha F225 / LF225 | 4.2L FourStroke V6 | Cooling System | Select models using thermostat 6CE-12411-00-00 |
| Yamaha F250 / LF250 | 4.2L FourStroke V6 | Cooling System | Select offshore and standard rotation applications |
| Yamaha F300 / LF300 | 4.2L FourStroke V6 | Cooling System | Used in compatible offshore cooling systems |
| Yamaha VF250 | V MAX SHO 4.2L | Cooling System | Select SHO cooling system applications |
Mercury OEM number 8M6012799 cross references this Yamaha thermostat for compatible Mercury-branded Yamaha powerhead applications.
Always verify your model number, serial number, and cooling system diagram before ordering thermostats and cooling system components.
OEM Part Numbers & Cross References
| Brand / Type | Part Number |
|---|---|
| Pro Marine | 6CE-12411P |
| Replaces Yamaha OEM | 6CE-12411-00-00 |
| Replaces Mercury OEM | 8M6012799 |
| Alternate Search Format | 6CE124110000 |
OEM and EMP Alternatives
What This Thermostat is Used For
This thermostat is used in compatible Yamaha and Mercury FourStroke cooling systems to regulate engine operating temperature.
The thermostat controls coolant flow through the engine to help the engine warm up properly and maintain consistent operating temperature.
A faulty thermostat may contribute to overheating, improper engine temperature, poor fuel efficiency, or excessive engine wear.
Replacing worn thermostats during cooling system maintenance helps maintain reliable engine performance and cooling system operation.
Key Features and Benefits
- Pro Marine aftermarket thermostat assembly
- Replaces Yamaha thermostat 6CE-12411-00-00
- Fits select Yamaha F225, F250, F300, LF-series, and VF250 models
- Designed for Yamaha 4.2L V6 cooling systems
- Helps maintain proper engine operating temperature
- Supports cooling system performance and engine efficiency
- Aftermarket alternative to OEM Yamaha thermostat
Thermostat Details
- Brand: Pro Marine
- Part Type: Thermostat Assembly
- Pro Marine Part Number: 6CE-12411P
- Replaces OEM: Yamaha 6CE-12411-00-00
- Mercury Cross Reference: 8M6012799
- Application: Yamaha 4.2L V6 Cooling Systems
- System: Cooling System
- Use: Engine temperature regulation
- Quantity Sold: Each
FAQ
What does Pro Marine 6CE-12411P replace?
This thermostat replaces Yamaha OEM thermostat 6CE-12411-00-00 and Mercury thermostat 8M6012799.
What engines does this thermostat fit?
This thermostat fits select Yamaha F225, F250, F300, LF-series, and VF250 4.2L V6 outboards.
What does this thermostat do?
It regulates engine cooling system temperature and coolant flow.
Can a bad thermostat cause overheating?
Yes. A faulty thermostat may restrict coolant flow or prevent proper engine temperature regulation.
Is this an OEM Yamaha thermostat?
No. This is a Pro Marine aftermarket replacement thermostat.
Are OEM and EMP versions available?
Yes. OEM Yamaha and EMP replacement versions are also available.
Should I verify fitment before ordering?
Yes. Yamaha used multiple thermostat configurations depending on model and production range.
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.
- Cooling system components should be installed only after confirming correct fitment.
- 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
6CE-12411P, 6CE-12411-00-00, 8M6012799, Pro Marine thermostat, Yamaha thermostat, Yamaha 4.2 thermostat, Yamaha F225 thermostat, Yamaha F250 thermostat, Yamaha F300 thermostat, Yamaha LF250 thermostat, Yamaha LF300 thermostat, Yamaha VF250 thermostat, Mercury thermostat, Mercury 8M6012799, offshore thermostat, cooling system thermostat, FourStroke thermostat
6CE-12411-00-00
8M6012799
