YAMAHA THERMOSTAT 52°C

Function and technical context

The Yamaha 6CE-12411-00 thermostat regulates the coolant temperature in four-stroke engines, keeping it in the optimal operating range. This component is part of the cooling system and acts as a thermostatic valve that opens and closes according to the thermal needs of the engine, guaranteeing a balanced distribution of the coolant flow. Its correct operation is essential to avoid overheating, which can cause damage to the gaskets, cylinder and head, as well as to ensure that the engine quickly reaches its optimal working temperature in cold start conditions.

When to replace this part?

The thermostat should be replaced when the engine experiences persistent overheating, abnormal temperature gauge readings, or irregular cooling fan operation. Although there is no fixed maintenance interval as with other components, the recommended practice is to inspect its condition during each seasonal inspection and replace it preventively if the engine has been exposed to salt water or sediment, as corrosion can affect its thermostatic response. Replacing the thermostat preventively before it fails is the best guarantee to avoid emergency repairs at sea and prolong the life of the engine.

Equivalent manufacturer part numbers