Specifically formulated for marine applications. Premium lithium formula provides optimum corrosion protection in both freshwater and saltwater applications. Ideal for trailer wheel bearings, universal joints and outdrive pivot joints. Operating temp -40° to +350°F. WHILE QUANTITIES LAST.

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.

Recommended for all general marine applications requiring a GL-5 class lubricant. 80W90. Ideal for replacing all old hypoid 90 applications needs. Formulated for use in freshwater or saltwater conditions and all standard marine applications under 75HP. Reduces friction and protects gears, bearings and other Gearcase components. Lower Unit Kit contains: two(2) 10 oz. tubes of Lower Unit Gear Lube and one(1) Flush & fill tool for small gearcases.

Improves engine performance by removing gum, varnish, and carbon deposits from internal engine components. Thoroughly cleans intake ports, valves, combustion chambers, pistons, and frees sticky rings. Designed for regular maintenance of 2-cycle and 4- cycle marine engine. Not for use as a fogging oil. Priced each.

Sierra replacement shift cables Mercruiser engines.

Sierra replacement shift cables Mercruiser engines.

Specifically formulated for marine applications. Premium lithium formula provides optimum corrosion protection in both freshwater and saltwater applications. Ideal for trailer wheel bearings, universal joints and outdrive pivot joints. Operating temp -40° to +350°F.

Specifically formulated for marine applications. Premium lithium formula provides optimum corrosion protection in both freshwater and saltwater applications. Ideal for trailer wheel bearings, universal joints and outdrive pivot joints. Operating temp -40° to +350°F.

Sierra replacement engine couplers for Mercruiser engines.

Improves engine performance and efficiency. Dissolves gum and varnish from entire fuel system - carbureted or injected. Removes internal carbon deposits from intake ports, valves, combustion chambers, pistons, and frees sticky rings. Displaces moisture and stabilizes fuel during storage periods. Designed for use in 2-cycle and 4-cycle marine engines. WHILE QUANTITIES LAST.

Synthetic marine formulation reduces operating friction for increased performance and protection of gears, bearings and other Gearcase components. Recommended for use in high performance and high load operating conditions in both outboard and I/O lower unit gear cases, 75HP and above, where a GL-5 class lubricant is required. 80W90

Formulated for high operating pressure. Anti-foam additives assures uniform flow with reduced air contamination in hydraulic systems. Designed for heavy duty use at high operating pressures in applications subject to varied temperature ranges. Provides proper lubrication and corrosion protection for internal hydraulic components.

Stabilizes E10 gasoline for up to 12 months, prevents fuel system corrosion from water attracted by E10 fuels. Cleans fuel system and improves performance. Contains non-alcohol water remover that helps to reduce the chance of phase separation. Easy to use precision measuring package. Safe for use in all gasoline powered engines including generators and outdoor power equipment and in 2-cycle and 4-cycle engines. Prevents gum and varnish formation for optimum performance and quick starts.

Sierra TC-W3 is a high performance lubricant that has been designed to meet and exceed all (Domestic & Import) engine manufacturers warranties. Exceeds JASO, ISO, API and NMMA for advanced generation 2 cycle lubricants. Priced each, sold in case quantities only.

Sierra TC-W3 is a high performance lubricant that has been designed to meet and exceed all (Domestic & Import) engine manufacturers warranties. Exceeds JASO, ISO, API and NMMA for advanced generation 2 cycle lubricants. Priced each, sold in case quantities only.