Sierra manifolds are painted, packaged and leak tested. Includes exhaust manifold gasket set.

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 replacement engine couplers for OMC Sterndrive, Cobra and Volvo engines.

Sierra replacement plug off caps for OMC Sterndrive/Cobra and Volvo engines.

Sierra replacement plates for cooling systems.

Sierra head gaskets Mercruiser and OMC Sterndrive engines.

Sierra intake manifold gaskets Mercruiser engines.

Sierra replacement gimbal bearings for Mercruiser and OMC Sterndrive and Cobra engines.

Sierra replacement engine couplers for OMC Sterndrive, Cobra and Volvo engines.

Sierra u-joints for Mercruiser engines.

Sierra replacement distributor caps for inboard and inboard/outdrive engines.

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

Sierra water pump mounting gaskets.

Sierra replacement bellows and boots for OMC Sterndrive, Cobra and Volvo engines.

Sierra replacement bellows and boots for OMC Sterndrive, Cobra and Volvo engines.