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 blocks & exhaust manifolds Material: Brass Size:... 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 resistant EPDM with U/V... 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. Compounded rubber flapper valves prevent water from... 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 system. This valve is made with weather-resistant EPDM... Add to Cart
Quick view Add to Cart Sierra 18-0956 Exhaust Manifold Gasket Replaces 27-68715 $26.19 $20.49 Sierra 18-0956-1 Mercruiser, OMC, Volvo Exhaust Manifold Gasket For Ford 460 cid V-8 & 3.7L (4 cyl) Interchangeable with: Chrysler Inboard 118-614 GLM 33800 Mallory 9-61418 Mercruiser Stern Drive 27-68715 OMC Stern... 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 Elbow Mounting Package Includes: (1) 18-2854-1... 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 18-1945 Riser $217.29 $152.09 Sierra 18-1945 Riser Sierra high-quality engine parts are designed to meet OEM specifications. Interchangeable with: Barr CM-20-6674 Chrysler Inboard 2846689 Mallory 9-40312 Osco 689 Add to Cart
Quick view Add to Cart Sierra 18-2941-9 End Cap Gasket (Pkg Of 2) $19.29 $13.49 Sierra 18-2941-9 End Cap Gasket (Pkg Of 2) Sierra replacement end cap gasket. Sierra aftermarket engine parts are manufactured to meet or exceed OEM requirements. For: 318 CID Engines Package of 2 Interchangeable with: Barr CM 1... Add to Cart
Quick view Add to Cart Sierra 18-4361 Exhaust Elbow Mounting Package $16.99 $12.49 Sierra 18-4361 Exhaust Elbow Mounting Package Sierra exhaust elbow mounting package for raw water cooled manifolds. Contains: 18-2941 manifold end cap (open) gasket 18-4263 Pipe plug 18-4257 Pipe plug Interchangeable... Add to Cart
CLEARANCE Quick view Add to Cart Sierra 18-8506 Exhaust Elbow Mounting Kit $21.79 $14.59 Sierra 18-8506 Exhaust Elbow Mounting Kit Sierra high-quality engine parts are designed to meet OEM specifications. For Chrysler Small Block V8 318-360 cu. in. For all models 1966 & up w/ swivel & fixed exhaust Use With: 18-1913... Add to Cart
Quick view Add to Cart Sierra 18-8527 Exhaust Manifold Mounting Kit $81.79 $58.89 Sierra 18-8527 Exhaust Manifold Mounting Kit Sierra replacement exhaust manifold mounting kit. Kit contains stainless steel bolts and nuts. For Chrysler Small Block V8 318-360 cu. in. For All models 1966 & up w/ swivel & fixed exhaust Use... Add to Cart
Quick view Add to Cart Sierra 18-1942 Manifold End Plate $47.19 $33.99 Manifold End Plate - Special Order est. 10 Days 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 V8 454 cu. in. GM Small Block V8 305-350 cu. in... Add to Cart
Quick view Add to Cart Sierra 18-8526 Exhaust Manifold Mounting Kit $32.69 $23.49 Sierra 18-8526 Exhaust Manifold Mounting Kit Sierra Exhaust Manifold Mounting Kit for Chrysler Small Block V8 318-360 cu. in. Also for all Models 1966 & up with swivel & fixed exhaust. Sierra Marine aftermarket engine parts are manufactured to... 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 18-1907 Riser Kit Includes: (1) 18-0183-1... Add to Cart
Quick view Add to Cart Sierra 18-0471 Exhaust Elbow Gasket $18.69 $15.89 Sierra 18-0471 Exhaust Elbow Gasket Sierra replacement exhaust elbow gasket. Use With: 18-1911 Manifold End Plate 18-1948 Elbow Interchangeable with: Mallory 9-65301 Osco 121 Add to Cart
Quick view Add to Cart Sierra 18-0607 Intake Manifold Gasket Set $78.29 $56.39 Sierra 18-0607 Intake Manifold Gasket Set Sierra replacement intake manifold gasket set for Chrysler Inboards. For: 318 CID Engines 1969-1982 Interchangeable with: Chrysler Inboard 3745217 Mallory 9-61208 Add to Cart
Quick view Add to Cart Sierra 18-8216 Brass Hose Fitting $37.19 $26.79 Sierra 18-8216 Brass Hose Fitting Sierra replacement brass hose fitting for OMC and Chrysler engines. Fits: Chrysler Small Block V8 (318-360ci), Big block V8 (383-440) Fits: OMC - In-Line 6 cylinders Material: Brass Thread Size: 3/4" - 14 NPT x 1"... Add to Cart
CLEARANCE Quick view Add to Cart Sierra 18-0474 Exhaust Elbow Gasket $12.99 $8.99 Sierra 18-0474 Exhaust Elbow Gasket Sierra replacement exhaust elbow gasket for use with Sierra 18-1915 Manifold. Interchangeable with: Barr CM-1-5972P Mallory 9-65303 Osco 7081-GH Add to Cart
