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 o-rings for various applications on outboard and inboard/outdrive engines.

Suggested for high horsepower engines (115HP and up). Built for extreme use. May be used in either freshwater or saltwater on stainless propellers.

Suggested for high horsepower engines (115HP and up). Built for extreme use. May be used in either freshwater or saltwater on stainless propellers.

Sierra o-rings for various applications on outboard and inboard/outdrive engines.

Sierra o-rings for various applications on outboard and inboard/outdrive engines.

Sierra o-rings for various applications on outboard and inboard/outdrive engines.

Sierra lower unit seal kit for Johnson, Evinrude and BRP outboard engines and OMC/Cobra sterndrive engines.

Sierra o-rings for various applications on outboard and inboard/outdrive engines.

Sierra o-rings for various applications on outboard and inboard/outdrive engines.

Sierra seals for Johnson, Evinrude and BRP outboard engines.

Sierra replacement thermostats for Johnson, Evinrude, BRP, Chrysler and Force outboards.

Sierra replacement thermostats for Johnson, Evinrude, BRP, Chrysler and Force outboards.

Sierra lower unit seal kit for Johnson, Evinrude and BRP outboard engines and OMC/Cobra sterndrive engines.

Sierra lower unit seal kit for Johnson, Evinrude and BRP outboard engines and OMC/Cobra sterndrive engines.