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47-84797M
689-44352-00-00
689-44352-01-00
689-44352-02-00
8M0175388
8M6010331
81604M
84797M
89890
11919001
119196001
6E5-12411-00-00
6E5-12411-01-00
6E5-12411-02-00
6DA-12411-01-00
8M0175324
8M6010299
EMP Thermostat Assembly
Aftermarket Yamaha 4.2L V6 Thermostat
This EMP 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 |
|---|---|
| EMP | 6CE-12411E |
| Replaces Yamaha OEM | 6CE-12411-00-00 |
| Replaces Mercury OEM | 8M6012799 |
| Alternate Search Format | 6CE124110000 |
OEM and Pro Marine 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
- EMP 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: EMP
- Part Type: Thermostat Assembly
- EMP Part Number: 6CE-12411E
- 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 EMP 6CE-12411E 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 an EMP aftermarket replacement thermostat.
Are OEM and Pro Marine versions available?
Yes. OEM Yamaha and Pro Marine 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-12411E, 6CE-12411-00-00, 8M6012799, EMP 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
90280-03M07-00
90280-03003-00
90280-03024-00
90820-03024-00
90280-04M02-00
90280-04M04-00
90280-04M00-00
Genuine Yamaha 60° Thermostat for F75 F90 VF90
Genuine Yamaha thermostat 6FP-12411-00-00 is a factory OEM 60°C thermostat for select Yamaha F75, F90 and VF90 FourStroke outboards. It helps regulate coolant flow so the engine can warm up properly and maintain its designed operating temperature.
Genuine Yamaha Factory Replacement
This is the genuine Yamaha OEM version, not an aftermarket thermostat. Use it when your engine parts diagram calls for Yamaha part number 6FP-12411-00-00.
Compatible Applications
This OEM thermostat fits the following Yamaha four-stroke outboard families when the engine diagram specifies part number 6FP-12411-00-00.
| Engine Family | Applicable Variants | Catalog Range |
|---|---|---|
| Yamaha F75LB Series | F75LB and applicable _0120 through _0123 variants | 2006-Present |
| Yamaha F75XB Series | F75XB and applicable _0120 through _0123 variants | 2006-Present |
| Yamaha F90JB Series | F90JB and applicable _0120 through _0123 variants | 2006-Present |
| Yamaha F90LB Series | F90LB, F90LB2, F90LB3 and applicable catalog variants | 2006-Present |
| Yamaha F90XB Series | F90XB, F90XB2 and applicable catalog variants | 2006-Present |
| Yamaha VF90LA and VF90LB | VF90LA, VF90LB and applicable _0120 through _0324 variants | 2006-Present |
| Yamaha VF90XA and VF90XB | VF90XA, VF90XB and applicable _0120 through _0324 variants | 2006-Present |
Fitment includes applicable catalog suffixes such as _0120, _0121, _0122, _0123 and _0324. Always confirm the complete engine model and OEM number before ordering.
OEM and Cross Reference Numbers
| Brand | Part Number | Reference Type |
|---|---|---|
| Yamaha | 6FP-12411-00-00 | Genuine OEM part number |
| Mercury | 8M0175325 | OEM cross reference |
| Mercury | 8M6010300 | OEM cross reference |
What This Thermostat is Used For
The thermostat controls coolant flow through the engine. When the engine is cold, it remains closed to help the powerhead reach operating temperature. As the engine warms, the thermostat opens to allow cooling water to circulate.
A properly functioning thermostat supports consistent engine temperature, clean combustion, dependable idle quality and correct cooling-system operation.
Reasons to Inspect or Replace the Thermostat
A thermostat stuck closed can restrict coolant flow and contribute to overheating.
A thermostat stuck open can prevent the engine from reaching its intended temperature.
Thermostats are commonly inspected during water-pump and cooling-system maintenance.
Salt, scale and debris can interfere with thermostat movement and sealing.
Aftermarket Option Available
Pro Marine 60° Thermostat 6FP-12411P
Looking for a cost-effective alternative? The Pro Marine version fits the same verified Yamaha applications and replaces OEM number 6FP-12411-00-00.
View Pro Marine ThermostatKey Features and Benefits
Factory Yamaha replacement for applications calling for 6FP-12411-00-00.
Designed to regulate operating temperature in the listed Yamaha engines.
Fits select Yamaha F75, F90 and VF90 FourStroke outboards.
Suitable for scheduled service or replacement of a sticking or corroded thermostat.
Frequently Asked Questions
Is this a genuine Yamaha part?
Yes. This page is for the genuine Yamaha OEM thermostat, part number 6FP-12411-00-00.
What temperature is this thermostat?
This is a 60°C thermostat for the listed Yamaha F75, F90 and VF90 applications.
What Mercury numbers cross to this thermostat?
Mercury references associated with this thermostat include 8M0175325 and 8M6010300.
How should I confirm fitment?
Confirm your complete Yamaha engine model and verify that the OEM parts diagram specifies 6FP-12411-00-00 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 Part Numbers
6FP-12411-00-00, 6FP124110000, 8M0175325, 8M6010300, Yamaha F75 thermostat, Yamaha F90 thermostat, Yamaha VF90 thermostat, genuine Yamaha thermostat, Yamaha 60 degree thermostat, F75LB thermostat, F75XB thermostat, F90LB thermostat, F90XB thermostat, VF90 SHO thermostat
6FP-12411-00-00
8M0175325
8M6010300