Boat Engine Maintenance

Sierra's Hi-Performance Synthetic Blend Gear Lube features a synthetic blended marine formulation that reduces operating friction for increased performance. It protects gears, bearings and other gear case components. For use in high performance and high load operating conditions in both outboard and I/O lower...

Removes deposits, gum, and varnish from carburetors, throttles, and fuel injectors. For use with outboard motors. Improves gas mileage and engine performance. Comes in a 13 oz. aerosol can.

Star Tron Enzyme Fuel Treatment is a multifunctional fuel additive which uses a unique enzyme technology that allows all engines to start easily and run smoothly, even when using ethanol-blended fuel or after sitting idle for months. Star Tron allows fuel to burn more...

Sierra's SAE 30 Full Synthetic Marine Engine Oil offers a special blend of synthetic base oil and a balanced additive system that exceeds FC-W requirements. Recommended for gasoline and diesel inboard and sterndrive engines. Superior engine protection during startups, operation and storage. Reduces friction...

SAE 25W-40; Premium Blend 4-Stroke Catalyst Engine Oil; 55 Gallon Drum; Single; NMMA FC-W Certified

SAE 10W-40; Semi Synthetic; 55 Gallon Drum; Single; NMMA FC-W/ API-SL Certified

1157 Stainless Steel Thimble KitIncludes: 2 stainless steel thimbles 4 heavy-duty brass connector sleeves 4 brass connector sleeves

Original Equipment Quality Replacement Tilt Trim Motor for Yamaha 2007-2019Replacement outboard tilt trim motor that will fit Yamaha 2007-2019 300-350 HP 4-stroke.ARCO advises cleaning all connections: A corroded connection creates resistance, lowering the amperage required to operate the motor.Features: Tilt trim motors are dynamically...

Original Equipment Quality Replacement Tilt Trim Motor for Yamaha 2014-2021Replacement outboard tilt trim motor that will fit Yamaha 90-130HP (fit for 4T F75 F80 F90 F100 F115 FL115 F125 F130).ARCO advises cleaning all connections: A corroded connection creates resistance, lowering the amperage required to...

Original Equipment Quality Replacement Tilt Trim Motor for Yamaha 2011-2021Replacement outboard tilt trim motor that will fit Yamaha 150-250HP, 2011-2021 4 Stroke.ARCO advises cleaning all connections: A corroded connection creates resistance, lowering the amperage required to operate the motor.Features: Tilt trim motors are dynamically...

Original Equipment Quality Replacement Tilt Trim Motor for Late Model Volvo Penta with Oildyne Pump - 2 WireReplacement tilt trim motor that will fit 6227, Late model Volvo Penta, w/Oildyne pump, 2-wire connection. ARCO advises cleaning all connections: A corroded connection creates resistance, lowering the...

Original Equipment Quality Replacement Tilt Trim Motor for Early Model Yamaha - 3 Wire, 3-Bolt MountReplacement tilt trim motor that will fit Yamaha Early 70, 90,115,150-200 HP, 3-wire connection, 3-bolt mount, Ring Terminal Ends, 4-mm thick shaft blade with 68.3-mm mounting collar. Includes O-ring. ARCO...

Original Equipment Quality Replacement Outboard Starter for Evinrude 40, 50, 75 & 90 HP E-TEC ModelsThis outboard starter will fit Evinrude 40, 50, 75, and 90 HP E-Tec Models, 9-tooth drive gear. ARCO advises using a fully charged battery - A weak battery can damage...

Premium Replacement Alternator with Single-Groove Pulley - 12V, 70AReplacement alternator that will fit Mercruiser 3.0L, 1999-Up, 12 Volt, 70 AMP, Internal Fan, Single groove pulley included. Features: All alternators are engineered for performance and reliability All alternators are engineered and manufactured with precision and quality...

Premium Replacement Throttle Position Sensor for Mercruiser Inboard Engines 1997-PresentThis throttle position sensor fits GM 5.7L, and 6.2L MPI Mercruiser inboard engines (1997-Up).Replaces: MERCRUISER Throttle Position Sensor 803148 OMC STERN DRIVE Throttle Position Sensor 3855296 VOLVO PENTA Throttle Position Sensor 3855296 SIERRA Throttle Position...

Premium Replacement Distributor Cap f/Mercruiser Inboard Engines - GM-StyleThis distributor cap fits GM-Style (module in the cap) distributors - V8 Applications excluding MPI engines with ECM 555.Replaces: INDMAR Distributor Cap 556038 CRUSADER Distributor Cap 38070 MERCRUISER Distributor Cap 804418 MERCRUISER Distributor Cap 808483 MERCRUISER...

Premium Replacement Distributor Cap f/Mercruiser, Volvo Penta & OMC Inboard Engines - GM-StyleThis distributor cap fits GM-Style "Module in Cap" Distributors - V6 Application.Replaces: MERCRUISER Distributor Cap 804420 MERCRUISER Distributor Cap 850484 MERCRUISER Distributor Cap 850484T MERCRUISER Distributor Cap 850484T2 OMC STERN DRIVE Distributor...

Premium Replacement Distributor Cap for Mercruiser Inboard Engines (Late Model)This distributor cap fits Late model (V6) 4.3L Alpha/Bravo Mercruiser Volvo Penta HVS V-6 Distributors.Replaces: MERCRUISER Distributor Cap 888731 MERCRUISER Distributor Cap 898253T23 VOLVO PENTA Distributor Cap 3859019 SIERRA Distributor Cap 18-5243 CDI ELECTRONICS Distributor...

Premium Replacement Distributor Cap for Mercruiser Inboard Engines with MPI MotorsThis distributor cap fits Mercruiser V8: 5.0L, 5.7L, 6.2L MPI motors with 555 ECM, PleasureCraft Models MP 5.0L and 5.7L (2002-05), and Volvo Engines with Delco HVS V-8 Distributors.Replaces: MERCRUISER Distributor Cap 884792 MERCRUISER...

Premium Replacement Distributor Cap for Mercruiser Inboard Engines with Thunderbolt IV & V HEIThis distributor cap fits GM V-8 Motors with Thunderbolt IV and V HEI Ignitions.Replaces: MERCRUISER Distributor Cap 16457A4 MERCRUISER Distributor Cap 43557 MERCRUISER Distributor Cap 43557A1 MERCRUISER Distributor Cap 805759A2 MERCRUISER...