Sierra plugs, taps and elbows Mercruiser exhaust manifolds.

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 pipe plugs used in I/O and Inboard engine cooling systems. Pipe sealant with Teflon® is recommended for use on pipe plugs.

Sierra pipe plugs used in I/O and Inboard engine cooling systems. Pipe sealant with Teflon® is recommended for use on pipe plugs.

Sierra pipe plugs used in I/O and Inboard engine cooling systems. Pipe sealant with Teflon® is recommended for use on pipe plugs.

Sierra replacement plates for cooling systems.

Sierra plugs, taps and elbows Mercruiser exhaust manifolds.

Sierra plugs, taps and elbows Mercruiser exhaust manifolds.

Sierra replacement drain screws and gaskets for Mercury and Mercruiser.

Sierra plugs, taps and elbows Mercruiser exhaust manifolds.

Sierra replacement engine couplers for Mercruiser engines.

Sierra replacement plates for cooling systems.

Sierra replacement plates for cooling systems.

Sierra replacement plates for cooling systems.

Miscellaneous Sierra cooling system parts for Mercury and Mariner outboard and Mercruiser engines.