Description
The Yamaha 6AW-12411-00-00 Thermostat is a genuine OEM cooling system component designed to regulate engine temperature in Yamaha outboard motors.
By controlling coolant flow, this thermostat ensures proper engine warm-up and maintains optimal operating temperature, preventing overheating and improving overall engine efficiency and longevity. Built to Yamaha’s exact specifications, it delivers reliable performance in demanding marine environments.
Key Features
- Genuine Yamaha OEM part
- Maintains proper engine operating temperature
- Ensures consistent cooling system performance
- Direct replacement fit and function
- Corrosion-resistant marine construction
Engine Compatibility
Yamaha Outboard Engines
Commonly used on:
- Yamaha F150
- Yamaha F175
- Yamaha F200 (inline 4-cylinder models)
Also used across various Yamaha 4-stroke outboards in the 2.7L platform
Serial Number Fitment Notice
Fitment depends on:
- Engine model and year
- Cooling system configuration
Always confirm compatibility using your engine model and serial number before ordering.
Specifications
- Part Number: 6AW-12411-00-00
- Type: Engine thermostat
- Function: Regulates coolant temperature
- Construction: Marine-grade metal housing with internal valve
What’s Included
- Thermostat (seal/gasket sold separately unless specified)
When This Part Needs Replacement
Replace the thermostat if you notice:
- Engine overheating
- Engine running too cold
- Fluctuating temperature readings
- Reduced fuel efficiency
Installation Notes
- Replace gasket or seal during installation
- Ensure correct orientation
- Inspect thermostat housing for corrosion
- Test cooling system after install
Alternate / Superseded Part Numbers
OEM Cross References
- Yamaha: 6AW-12411-00-00
Shipping
Shipping: Ships same or next day for fast Canada wide shipping.
Parts Desk Insight
On Yamaha 4-strokes, thermostats often fail open, not closed—so if your motor won’t reach temp, this is usually the culprit
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