Description:

Never used, directly replaces the old one and easy installation.. Fitment: for Yamaha 2 stroke 3-250HP. OE Number: 688-12411-10-00, 688-12411-11-00, 6H3-12411-11-00, 6E5-12411-30-00, 6E5-12411-20-00, 6E5-12411-10-00, 6E5-12411-02, 6E5-12411-00, 6E5-12411. Good Replacement: The engine's thermostat regulates the temperature of the engine by controlling coolant flow. A bad or failing thermostat: high temperature reading and engine overheating, low temperature reading and underheated engine, temperature changing erratically, coolant leaks around thermostat housing or under the vehicle. How to fine thermostat: You can find your car's thermostat by starting at the upper radiator hose and following it to where it enters the top of the engine.. Package Included: 2 x Thermostat Housing Assembly.