Sierra thermostat kits for Yamaha outboard engines.

Sierra Marine Engine Parts & Drive Parts   Sierra Marine is a trusted name in aftermarket replacement boat engine and drive parts. Sierra’s products are designed and engineered to exceed the high horsepower demands of today’s engines in the harshest marine environments. All Sierra products meet or exceed the original equipment part it replaces.   If you need help finding a part, we need, Make, Model, Year, Horsepower, and Serial number of your engine.   Warning: We can no longer ship engine parts International or to California Due to Prop 65.

Sierra thermostat kits for Yamaha outboard engines.

Sierra cover gaskets.

Sierra replacement plates for cooling systems.

Sierra replacement plates for cooling systems.

Sierra replacement plates for cooling systems.

Sierra water pump kits for Yamaha outboards. Kit includes housing.

Miscellaneous Sierra cooling system parts for Yamaha outboard engines.

Sierra replacement thermostats for Yamaha outboard engines.

Sierra fuel pumps for Yamaha outboards.

Sierra lower unit seal kit for Yamaha engines.

Sierra carburetor mounting gaskets.

Sierra water pump housings and bases for various outboard and inboard/outdrive engines.

Sierra head gaskets for Yamaha outboard engines.