Quick view Add to Cart Sierra 18-4218 Drain Tap Replaces 22-16951Q1 $9.99 Sierra 18-4218 Drain Tap for Mercruiser, Volvo, OMC Sierra high-quality engine parts are designed to meet OEM specifications. Used with most OEM Manifolds. Fits Mercruiser cylinder blocks & exhaust manifolds Material: Brass Size: 1/4"... Add to Cart
Quick view Add to Cart Sierra 18-4456 Exhaust Protector Valve Replaces 34765A2 $26.99 Sierra 18-4456 Universal 3" Exhaust Flapper Includes 3" stainless steel clamp. Features: Compounded rubber flapper valves stops water from entering the exhaust system Constructed with weather resistant EPDM with U/V... Add to Cart
Quick view Add to Cart Sierra 18-0604 Exhaust Manifold Gasket Set $26.99 Barr Exhaust Manifold Gasket Set by Sierra For GM 305/350 CID Engines and Barr Exhaust Systems. Use with Manifold 18-1997-1. Add to Cart
Quick view Add to Cart Sierra 18-0603 Exhaust Manifold Gasket Set $28.49 Sierra 18-0603 Exhaust Manifold Gasket Set for Mercruiser, Volvo, OMC Sierra high-quality engine parts are designed to meet OEM specifications. For Ford 302/351 CID Engines and Indmar Inboard V8 Engines. Use with 18-1998-1 Manifold Set... Add to Cart
Quick view Add to Cart Sierra 18-0418 Exhaust Manifold Mounting Gasket $14.49 Sierra 18-0418 Exhaust Manifold Mounting Gasket Sierra high-quality engine parts are designed to meet OEM specifications. Fits MCM/MIE GM V-8 (454, 482, 496, 502 & 504 CID) engines. Fits Volvo 7.4L, GL, GI, GSI, and 8.2L, GL, GI,... Add to Cart
Quick view Add to Cart Sierra 18-4458 Exhaust Protector Valve Replaces 700-834800A5 $50.99 Sierra 18-4458 Universal 5" Exhaust Protector Valve Sierra high-quality engine parts are designed to meet OEM specifications. Fits both 5" & 6" Exhaust and includes stainless steel clamp. Compounded rubber flapper valves prevent water from... Add to Cart
Quick view Add to Cart Sierra 18-4457 Exhaust Protector Valve Replaces 12644A1 $25.99 Sierra 18-4457 Mercruiser Exhaust Protector Valve - Replaces 12644A1 The Sierra 18-4457 Exhaust protector valve is a compounded rubber flapper valve that prevents water from entering the exhaust system. This valve is made with weather-resistant EPDM... Add to Cart
Quick view Add to Cart Sierra 18-0475-1 Exhaust Elbow Gasket $10.49 Sierra Exhaust Elbow Gasket Special Order est. 10 Days For use with Crusader Inboard engines Used with: Riser: sie-18-1938 Used with: Manifold:... Add to Cart
Quick view Add to Cart Sierra 18-4364 Exhaust Elbow Mounting Package $13.49 Sierra 18-4364 Exhaust Elbow Mounting Package - Open Sierra high-quality engine parts are designed to meet OEM specifications. Use with: 18-1907 Riser 18-1939 Riser 18-1999 Elbow 18-1971 Elbow Mounting Package Includes: (1) 18-2854-1... Add to Cart
Quick view Add to Cart Sierra 18-4461 Hose Barb $9.99 3/4" - 14 NPT Straight Hose Barb Replaces: Mercury 22-866725 GLM 13984 Corrosion Resistant Brass Fitting Add to Cart
Quick view Add to Cart Sierra 18-0309-1 Exhaust Elbow Gasket $7.49 Sierra Exhaust Elbow Gasket Special Order est. 10 Days For use with Crusader - Inboard Use with: Exhaust Elbow: 18-1928 ... Add to Cart
Quick view Add to Cart Sierra 18-0305-1 Exhaust Elbow Gasket $7.99 Sierra Exhaust Elbow Gasket Special Order est. 10 Days For use on Crusader/Inboard Use with: Exhaust Manifold: 18-1929 Replaces: 96108 Add to Cart
Quick view Add to Cart Sierra 18-8524 Exhaust Manifold Mounting Kit $26.49 Sierra 18-8524 Exhaust Manifold Mounting Kit The Sierra Exhaust Manifold Mounting Kit is for Crusader GM Big Block V8 454 cu. in. engines. Includes 18-0418 Exhaust Manifold Mounting Gasket. Use With: 18-1929 Manifold 18-1933... Add to Cart
Quick view Add to Cart Sierra 18-1917 Block Off Manifold Plate $17.49 Sierra 18-1917 Block Off Manifold Plate Sierra replacement stainless block off manifold plate. Sierra Marine engine parts are manufactured to meet or exceed OEM requirements. Material: Stainless For Crusader Small Block V8 305-350 cu. in. (Models... Add to Cart
Quick view Add to Cart Sierra 18-8535 Exhaust Manifold Elbow Mounting Kit $11.99 Sierra 18-8535 Exhaust Manifold Elbow Mounting Kit Sierra replacement exhaust manifold elbow mounting kit (blocked). Barr, Indmar & Marine Power Ford Small Block V8 302-351 cu. in. GM Big Block V8 454 cu. in. GM Small Block V8 305-350 cu. in... Add to Cart
Quick view Add to Cart Sierra 18-8523 Exhaust Elbow Mounting Kit $56.99 Exhaust Elbow Mounting Kit - Special Order est. 10 Days Add to Cart
Quick view Add to Cart Sierra 18-1933 Manifold $326.49 Sierra 18-1933 Manifold Sierra high-quality port manifold. Interchangeable with: Barr CR-1-97993 Crusader 97993 97115 Mallory 9-40402 Osco 7993 Use With: 18-0418: Exhaust Manifold Mounting Gasket 18-8524: Exhaust... Add to Cart
Quick view Add to Cart Sierra 18-8519 Exhaust Elbow Mounting Kit $46.99 Sierra 18-8519 Exhaust Elbow Mounting Kit Sierra replacement exhaust elbow mounting kit. Includes 18-0305-1 Exhaust Elbow Gasket. Crusader GM Small Block V8 305, 350 Crusader GM Big Block V8 454 Use with: 18-1916 Riser Interchangeable... Add to Cart
Quick view Add to Cart Sierra 18-8547 Exhaust Elbow Mounting Kit $22.49 Sierra 18-8547 Exhaust Elbow Mounting Kit Sierra mounting kit for center outlet exhaust elbow. For: GM Small Block V8 305- 350 cu. in For: GM Big Block 454 cu. in Interchangeable with: Mallory 9-40478 9-40479 Osco 9015-MK Add to Cart
