Sierra screws and washers for Johnson, Evinrude and OMC drive systems.

Sierra screws and washers for Johnson, Evinrude and OMC drive systems.

Sierra screws and washers for Johnson, Evinrude and OMC drive systems.

Sierra replacement drain screws and gaskets for Mercury and Mercruiser.

Premium quality motor oil formulated to meet or exceed warranty requirements for 2-cycle outboard engines. Protects engine against heat, friction and rust. Formulated specifically for Mercury Optimax, Yamaha HPDI, BRP Ficht, DI and other high performance injection type engines. Exceeds JASO, ISO, API and NMMA for advanced generation 2 cycle lubricants. Priced each, sold in case quantities only.

Specially designed to meet the unique requirements of modern 4-stroke recreational engines with or without catalyst systems. ZDDP anti-wear additive prevents phosphorus depletion to extend catalyst life and provide excellent anti-wear protection. Sierra Catalyst Compatible Oils provide leading wear protection and deposit control for engine longevity, corrosion protection from infrequent use and environmental contamination, enhanced detergent properties to prevent sludge formation, and reduced ending friction to maintain performance. Priced each, sold in case quantities only.

Specially designed to meet the unique requirements of modern 4-stroke recreational engines with or without catalyst systems. ZDDP anti-wear additive prevents phosphorus depletion to extend catalyst life and provide excellent anti-wear protection. Sierra Catalyst Compatible Oils provide leading wear protection and deposit control for engine longevity, corrosion protection from infrequent use and environmental contamination, enhanced detergent properties to prevent sludge formation, and reduced ending friction to maintain performance. Priced each, sold in case quantities only.

Specifically formulated for the heavy duty inboard marine market, including cruisers and towboats calling for a 15W-40. Suitable for fuels on any sulfur level. Not for use in gasoline engines equipped with catalytic converters. Meets API Service classification up to CK-4 and performance specifications for API service classification SM. Replaces Shell Rotella T4, Delo 400, MerCruiser, Indmar, Pleasurecraft, Crusader, Volvo Penta and MasterCraft. Priced each, sold in case quantities only.

Sierra gaskets for Mercury outboard water pumps and impellers.

Sierra o-rings for Johnson, Evinrude and BRP outboards and OMC Sterndrive and Cobra engines.

Sierra adapter gaskets for outboard engines.

Sierra carburetor gaskets.

Sierra exhaust elbow gaskets.

Sierra exhaust elbow gaskets.

Sierra exhaust plate gaskets.