NEW OEM YAMAHA Outboard Thermostat

 6AH-12411-00

［APPLICABLE MODEL SERIES］

• F20B 

What is the Outboard Engine Thermostat?

The thermostat in your outboard engine is a temperature-sensitive valve.

Its main role is to regulate the flow of coolant based on the engine's temperature.

When the engine is cold, the thermostat remains closed, allowing the engine to warm up quickly.

As the engine temperature rises, the thermostat starts to open, letting coolant flow through

And maintain the engine at an optimal temperature.

Symptoms of a problematic Thermostat?

• The overheating rate of the engine is abnormal.
• The engine does not reach the correct operating temperature (engine overheating).
• Performance is poor in cold weather.

Upgrade your boat's performance with this top-quality OEM Yamaha outboard Thermostat.