Products

The 70-SM51180 is a zinc bow thruster anode kit for select Side-Power / Sleipner thruster applications. It is designed to help protect the thruster...

The SIERRA Riser Block Off Gasket - is designed to provide a dependable seal when an exhaust riser is removed, blocked off, or temporarily taken ou...

The Sierra 18-3549 Thermostat (120°F) is a premium aftermarket replacement designed for Johnson, Evinrude, and OMC outboard engines. It regulates e...

The Sierra 18-3552 Thermostat is a high-quality aftermarket replacement designed for Mercury MerCruiser engines, providing reliable temperature reg...

Sierra premium 25W-40 4-stroke marine engine oil engineered for superior protection and performance in marine gasoline engines. This high-quality o...

Sierra SIE-18-5244 is a marine distributor cap and rotor kit for selected late-model GM V8 marine ignition applications. Current listings describe ...

Sierra SIE-18-5403 is a marine distributor rotor identified as AP-873 for Prestolite distributor applications with screw-down caps. Current listing...

Sierra SIE-18-5404-1 is a marine distributor rotor for Mallory V8 tall cap distributor applications. Current aftermarket listings consistently plac...

The Sierra 18-7845 is a marine fuel/water separating spin-on filter designed for gasoline applications and built to help protect the fuel system fr...

Premium aftermarket gasket engineered for Mercury outboard motors. This precision-cut gasket provides reliable sealing for critical engine componen...

Sierra SIE-18-5408 is an ignition rotor identified as AP-3065 for GM V6 marine engines using the newer Delco EST / HEI module-in-cap distributor se...

Sierra SIE-18-5407 is an ignition rotor identified as AP-866 for marine V8 applications using Prestolite distributors with clip-down distributor ca...

Sierra SIE-18-5428 ignition rotor for Volvo Penta marine gasoline engines with Bosch-style distributors. Replaces Volvo Penta 243903 / 243903-2. Ma...

Sierra SIE-18-5411 is an ignition rotor for selected OMC stern drive, Volvo Penta, Crusader, and Chris-Craft marine distributor applications. Curre...

Sierra SIE-18-5425 is an ignition rotor for selected Volvo Penta marine distributor applications. Current aftermarket listings consistently identif...

The Sierra 18-3056 Impeller (AP-1814) is a direct replacement raw water pump impeller designed for Mercury and Mariner outboards. This impeller is ...

The Sierra 18-3065 Impeller (AP-2174) is a high-quality raw water pump impeller designed for Mercury and Mariner outboards. This impeller is respon...

The Sierra 18-3068 Impeller (AP-2009) is a direct replacement raw water pump impeller designed for Mercury and Mariner outboards. This impeller pla...

The Sierra 18-3086 Impeller (AP-007) is a direct replacement raw water pump impeller designed for Yamaha outboards. This impeller is responsible fo...

The Sierra 18-3016-1 Impeller Kit is a complete raw water pump service kit designed for Mercury and Mariner outboards. This kit includes the impell...

The Sierra 18-3077 Impeller Kit (AP-1933) is a complete raw water pump service kit designed for Mercury and Mariner outboards. This kit includes th...

The Sierra 23-3304 Impeller Kit is a complete water pump service kit designed for Volvo Penta SX and DP-S sterndrive lower units. This kit restores...

The Sierra 18-8808-2 is a MagForce premium marine 4-cylinder spark plug wire set for select vintage MerCruiser inline-4 sterndrive engines using co...

Sierra marine alternator engineered for reliable electrical charging system performance. This high-quality alternator ensures consistent power gene...