Quick view Add to Cart Sierra 18-4218 Brass 1/4" Drain Tap $14.69 $12.49 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. Features: Fits MerCruiser cylinder... Add to Cart
Quick view Add to Cart Sierra 18-4456 Exhaust Protector Valve Replaces 34765A2 $44.89 $32.29 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... Add to Cart
Quick view Add to Cart Sierra 18-0418 Exhaust Manifold Mounting Gasket $22.99 $16.59 Sierra 18-0418 Exhaust Manifold Mounting Gasket Sierra high-quality engine parts are designed to meet OEM specifications. Features: Fits MCM/MIE GM V-8 (454, 482, 496, 502 & 504 CID) engines... Add to Cart
Quick view Add to Cart Sierra 18-4458 Exhaust Protector Valve Replaces 700-834800A5 $86.29 $62.19 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... Add to Cart
Quick view Add to Cart Sierra 18-4457 Exhaust Protector Valve Replaces 12644A1 $44.19 $31.79 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... Add to Cart
Quick view Add to Cart Sierra 18-4364 Exhaust Elbow Mounting Package $22.09 $15.89 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... Add to Cart
Quick view Add to Cart Sierra 18-4461 Hose Barb $15.29 $10.99 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 18-0183-1 Exhaust Manifold Gasket $18.79 $15.89 Sierra 18-0183-1 Exhaust Manifold Gasket for Mercruiser, OMC Sierra Exhaust Manifold Gasket for use on Mercruiser and OMC Stern Drives. Fits MCM/MIE Ford V-8 engines Use With: 18-1996... Add to Cart
Quick view Add to Cart Sierra 18-0309-1 Exhaust Elbow Gasket $12.59 $8.99 Sierra Exhaust Elbow Gasket Special Order est. 10 Days For use with Crusader - Inboard Use with: Exhaust Elbow: 18-1928 V-6/V-8 Replaces: Add to Cart
Quick view Add to Cart Sierra 18-0305-1 Exhaust Elbow Gasket $12.99 $10.09 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 18-8523 Exhaust Elbow Mounting Kit $93.99 $67.69 Exhaust Elbow Mounting Kit - Special Order est. 10 Days Add to Cart
Quick view Add to Cart Sierra 18-8524 Exhaust Manifold Mounting Kit $43.19 $31.09 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... Add to Cart
Quick view Add to Cart Sierra 18-1917 Block Off Manifold Plate $29.19 $20.99 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:... Add to Cart
Quick view Add to Cart Sierra 18-8535 Exhaust Manifold Elbow Mounting Kit $19.39 $13.99 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... Add to Cart
Quick view Add to Cart Sierra 18-8538 Exhaust Manifold Mounting Kit $37.29 $26.89 Sierra 18-8538 Exhaust Manifold Mounting Kit Ford Small Block V-8 Barr and Indmar Ford Small Block V8 302-351cu.in. Use With: 18-1904 Manifold 18-1998-1 Manifold Add to Cart
Quick view Add to Cart Sierra 18-1933 Manifold $506.99 $365.09 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: Add to Cart
Quick view Add to Cart Sierra 18-8547 Exhaust Elbow Mounting Kit $37.39 $26.89 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... Add to Cart
CLEARANCE Quick view Add to Cart Sierra 18-8519 Exhaust Elbow Mounting Kit $77.29 $51.79 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... Add to Cart
Quick view Add to Cart Sierra 18-8515 Exhaust Manifold Mounting Kit $23.39 $16.79 Sierra 18-8515 Exhaust Manifold Mounting Kit Sierra exhaust manifold mounting kit. Includes 18-0309-1 Exhaust Elbow Gasket. Use with: 18-1918 Elbow 18-1928 Elbow w/ 4" Outlet 18-1934 Elbow w/... Add to Cart
Quick view Add to Cart Sierra 18-8521 Exhaust Manifold Mounting Kit $35.49 $25.59 Exhaust Manifold Mounting Kit - Special Order est. 10 Days Add to Cart
