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    Sierra 18-1904 Manifold OMC

    Sierra
    Original price $525.00
    Original price $525.00 - Original price $525.00
    Original price $525.00
    Current price $327.99
    $327.99 - $327.99
    Current price $327.99

    OMC Sterndrive / Cobra Cooling System ManifoldPort and StarboardReplaces: Sterndrive/Cobra Inboard/Outboard #980959 Fits most Ford V-8 302 & 35...

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    Original price $525.00
    Original price $525.00 - Original price $525.00
    Original price $525.00
    Current price $327.99
    $327.99 - $327.99
    Current price $327.99
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    Sierra 18-1921 Manifold Elbow for GM V8 SB Engines (Most Models)

    Sierra
    Original price $325.00
    Original price $325.00 - Original price $325.00
    Original price $325.00
    Current price $209.99
    $209.99 - $209.99
    Current price $209.99

    Sierra 18-1921 V-8 Small Block Exhaust Elbow Sierra replacement exhaust elbow fits most GM V8 Small Blocks. Use with: 18-1902 Manifold 18-1903 Man...

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    Original price $325.00
    Original price $325.00 - Original price $325.00
    Original price $325.00
    Current price $209.99
    $209.99 - $209.99
    Current price $209.99
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  • Save $155.01 Save $0.00

    Sierra 18-1922 OMC/Volvo Four Cylinder Riser

    Sierra
    Original price $375.00
    Original price $375.00 - Original price $375.00
    Original price $375.00
    Current price $219.99
    $219.99 - $219.99
    Current price $219.99

    Sierra's 18-1922 Manifold Elbow is a replacement part for OMC Stern Drives. All Sierra aftermarket parts are manufactured to meet or exceed OEM req...

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    Original price $375.00
    Original price $375.00 - Original price $375.00
    Original price $375.00
    Current price $219.99
    $219.99 - $219.99
    Current price $219.99
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  • Save $192.01 Save $0.00

    Sierra 18-1930-2 Exhaust Manifold Volvo

    Sierra
    Original price $547.00
    Original price $547.00 - Original price $547.00
    Original price $547.00
    Current price $354.99
    $354.99 - $354.99
    Current price $354.99

    Sierra 18-1930-1 Exhaust Manifold Volvo Fits AQ120B 125A 140A 145A BB140A Supplied with mounting package Use with Sierra exhaust manifold gasket 1...

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    Original price $547.00
    Original price $547.00 - Original price $547.00
    Original price $547.00
    Current price $354.99
    $354.99 - $354.99
    Current price $354.99
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  • Save $150.01 Save $0.00

    Sierra 18-1932 Exhaust Manifold Volvo Penta V6 Center Rise

    Sierra
    Original price $375.00
    Original price $375.00 - Original price $375.00
    Original price $375.00
    Current price $224.99
    $224.99 - $224.99
    Current price $224.99

    Sierra 18-1932 Exhaust Manifold Volvo Penta V6 Center Rise Volvo Penta V6 Center Rise Exhaust Manifold For both port and starboard sides of the en...

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    Original price $375.00
    Original price $375.00 - Original price $375.00
    Original price $375.00
    Current price $224.99
    $224.99 - $224.99
    Current price $224.99
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  • Save $191.01 Save $0.00

    Sierra 18-1953-2 Mercruiser GM Small Block Exhaust Manifold

    Sierra
    Original price $499.00
    Original price $499.00 - Original price $499.00
    Original price $499.00
    Current price $307.99
    $307.99 - $307.99
    Current price $307.99

    Sierra 18-1953-2 Mercruiser V8 Exhaust Manifold For Mercruiser GM Small Block V8 engines with center riser. Fits most Mercruiser (6m) small blocks ...

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    Original price $499.00
    Original price $499.00 - Original price $499.00
    Original price $499.00
    Current price $307.99
    $307.99 - $307.99
    Current price $307.99
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  • Save $249.01 Save $0.00

    Sierra 18-1954-1 Exhaust/Intake Manifold Mercruiser 4 Cylinder

    Sierra
    Original price $799.00
    Original price $799.00 - Original price $799.00
    Original price $799.00
    Current price $549.99
    $549.99 - $549.99
    Current price $549.99

    Sierra 18-1954-1 Exhaust/Intake Manifold Mercruiser 4 Cylinder Mercruiser 4 Cylinder Exhaust/Intake Manifold Fits most late model 2.5L 153 cu. in....

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    Original price $799.00
    Original price $799.00 - Original price $799.00
    Original price $799.00
    Current price $549.99
    $549.99 - $549.99
    Current price $549.99
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  • Save $153.01 Save $0.00

    Sierra 18-1970-2 Exhaust Manifold Elbow

    Sierra
    Original price $325.00
    Original price $325.00 - Original price $325.00
    Original price $325.00
    Current price $171.99
    $171.99 - $171.99
    Current price $171.99

    Sierra 18-1970-2 Exhaust Manifold Elbow Sierra exhaust elbow Fits Mercruiser GM 185; 200; 205; 228; 230; 260; 330; 340; and 898 model engines For ...

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    Original price $325.00
    Original price $325.00 - Original price $325.00
    Original price $325.00
    Current price $171.99
    $171.99 - $171.99
    Current price $171.99
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  • Save $93.01 Save $0.00

    Sierra 18-1971 Exhaust Manifold Elbow

    Sierra
    Original price $245.00
    Original price $245.00 - Original price $245.00
    Original price $245.00
    Current price $151.99
    $151.99 - $151.99
    Current price $151.99

    Sierra 18-1971 Exhaust Manifold Elbow Sierra exhaust elbow For 3 in. ID hose 3 in. x 2 3/4 in. mounting pattern For Mercruiser 140 GM 181 CID engi...

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    Original price $245.00
    Original price $245.00 - Original price $245.00
    Original price $245.00
    Current price $151.99
    $151.99 - $151.99
    Current price $151.99
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  • Save $123.01 Save $0.00

    Sierra 18-1972 Exhaust Manifold Elbow

    Sierra
    Original price $325.00
    Original price $325.00 - Original price $325.00
    Original price $325.00
    Current price $201.99
    $201.99 - $201.99
    Current price $201.99

    Replaces OEM part #MERCURY MARINE 76325A2For: most late Model 120;140 HP Mercruiser applicationsUse with:Manifold: 18-1955-1; 18-1954-1; 18-1956-1;...

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    Original price $325.00
    Original price $325.00 - Original price $325.00
    Original price $325.00
    Current price $201.99
    $201.99 - $201.99
    Current price $201.99
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  • Save $126.01 Save $0.00

    Sierra 18-1973 Exhaust Manifold Riser

    Sierra
    Original price $325.00
    Original price $325.00 - Original price $325.00
    Original price $325.00
    Current price $198.99
    $198.99 - $198.99
    Current price $198.99

    Sierra 18-1973 Exhaust Manifold Riser 2 1/2 in. Exhaust Riser 90 degree down angle Fits most early model 120HP Mercrusier applications Replaces Me...

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    Original price $325.00
    Original price $325.00 - Original price $325.00
    Original price $325.00
    Current price $198.99
    $198.99 - $198.99
    Current price $198.99
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  • Save $149.01 Save $0.00

    Sierra 18-1976-2 Exhaust Manifold Elbow

    Sierra
    Original price $375.00
    Original price $375.00 - Original price $375.00
    Original price $375.00
    Current price $225.99
    $225.99 - $225.99
    Current price $225.99

    Sierra 18-1976-2 Exhaust Manifold Elbow Sierra 4 inch exhaust elbow Fits most Mercruiser V6 & V8 applications Accepts 4 in. inside diameter ex...

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    Original price $375.00
    Original price $375.00 - Original price $375.00
    Original price $375.00
    Current price $225.99
    $225.99 - $225.99
    Current price $225.99
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  • Save $84.01 Save $0.00

    Sierra 18-1991 Elbow Adapter

    Sierra
    Original price $165.00
    Original price $165.00 - Original price $165.00
    Original price $165.00
    Current price $80.99
    $80.99 - $80.99
    Current price $80.99

    Sierra 18-1991 Elbow Adapter Sierra 18-1991 30° Exhaust Elbow Adapter Sierra high-quality exhaust elbow adapter for use with 3" I.D. Exhaust Hose. ...

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    Original price $165.00
    Original price $165.00 - Original price $165.00
    Original price $165.00
    Current price $80.99
    $80.99 - $80.99
    Current price $80.99
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  • Save $83.01 Save $0.00

    Sierra 18-1993 Thermostat Housing

    Sierra
    Original price $325.00
    Original price $325.00 - Original price $325.00
    Original price $325.00
    Current price $241.99
    $241.99 - $241.99
    Current price $241.99

    Thermostat Housing. Housing; T-Stat - End Rise. Replaces OEM part #•MERCURY MARINE 78984A1 Fits MCM/MIE 198/898, 228, 250, 260 & 280 Intercha...

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    Original price $325.00
    Original price $325.00 - Original price $325.00
    Original price $325.00
    Current price $241.99
    $241.99 - $241.99
    Current price $241.99
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    Sierra 18-1994 Thermostat Housing

    Sierra
    Original price $275.00
    Original price $275.00 - Original price $275.00
    Original price $275.00
    Current price $168.99
    $168.99 - $168.99
    Current price $168.99

    Mercruiser Design #1 Lower Thermostat Housing Only with Brass T Valve for Small Block GM Engines.Replaces Merc 87290A4

    Original price $275.00
    Original price $275.00 - Original price $275.00
    Original price $275.00
    Current price $168.99
    $168.99 - $168.99
    Current price $168.99
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    Sierra 18-21005 Mercruiser Gimbal Bearing

    Sierra
    Original price $165.00
    Original price $165.00 - Original price $165.00
    Original price $165.00
    Current price $72.99
    $72.99 - $72.99
    Current price $72.99

    Sierra high-quality gimbal bearings are greasable and fit all Bravo, and Alpha One Gen II (1998 & up). Interchangeable with: Mallory 9-72412 ...

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    Original price $165.00
    Original price $165.00 - Original price $165.00
    Original price $165.00
    Current price $72.99
    $72.99 - $72.99
    Current price $72.99
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  • Save $73.01 Save $0.00

    Sierra 18-2128 Center Socket

    Sierra
    Original price $145.00
    Original price $145.00 - Original price $145.00
    Original price $145.00
    Current price $71.99
    $71.99 - $71.99
    Current price $71.99

    Fits : All OMC Cobra Fits : Bravo (0M111207 & Below), MC II & TS Fits : IA/IB/IC & EZ, MC-I, R, MR, Alpha One, Gen II (0L949778 & ...

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    Original price $145.00
    Original price $145.00 - Original price $145.00
    Original price $145.00
    Current price $71.99
    $71.99 - $71.99
    Current price $71.99
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  • Save $114.01 Save $0.00

    Sierra 18-2601-1 Mercruiser Alpha One Transom Seal Kit

    Sierra
    Original price $275.00
    Original price $275.00 - Original price $275.00
    Original price $275.00
    Current price $160.99
    $160.99 - $160.99
    Current price $160.99

    Sierra 18-2601-1 Mercruiser Alpha One Transom Seal Kit Sierra Alpha One transom service kit For Mercruiser R; MR and Alpha 1 drives with exhaust b...

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    Original price $275.00
    Original price $275.00 - Original price $275.00
    Original price $275.00
    Current price $160.99
    $160.99 - $160.99
    Current price $160.99
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    Sierra 18-2743 Outdrive Mounting Gasket for Mercruiser Stern Drive

    Sierra
    Original price $21.00
    Original price $21.00 - Original price $21.00
    Original price $21.00
    Current price $11.99
    $11.99 - $11.99
    Current price $11.99

    Sierra 18-2743 Mercruiser Outdrive Housing Gasket Sierra high-quality engine parts are designed to meet OEM specifications. Fits R, MR, Alpha One ...

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    Original price $21.00
    Original price $21.00 - Original price $21.00
    Original price $21.00
    Current price $11.99
    $11.99 - $11.99
    Current price $11.99
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  • Save $66.01 Save $0.00

    Sierra 18-3078 Marine Neoprene Impeller Kit with 9 Fins for Volvo Penta Stern Drive

    Sierra
    Original price $141.00
    Original price $141.00 - Original price $141.00
    Original price $141.00
    Current price $74.99
    $74.99 - $74.99
    Current price $74.99

    Sierra 18-3078 Impeller Kit Diameter Size: 3-3/4" or 95.3mm Width: 2-1/2" or 63.5mm Material: Neoprene Splines: 12 Fins: 9 Interchangeable with: ...

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    Original price $141.00
    Original price $141.00 - Original price $141.00
    Original price $141.00
    Current price $74.99
    $74.99 - $74.99
    Current price $74.99
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  • Save $15.01 Save $0.00

    Sierra 18-3317 Water Pump Kit

    Sierra
    Original price $54.00
    Original price $54.00 - Original price $54.00
    Original price $54.00
    Current price $38.99
    $38.99 - $38.99
    Current price $38.99

    These kits contain all the necessary parts to completely service the water pump system. They include gaskets; o-rings; grommets; water tube guide; ...

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    Original price $54.00
    Original price $54.00 - Original price $54.00
    Original price $54.00
    Current price $38.99
    $38.99 - $38.99
    Current price $38.99
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    Sierra 18-5445 Ignition Coil OMC

    Sierra
    Original price $54.00
    Original price $54.00 - Original price $54.00
    Original price $54.00
    Current price $36.99
    $36.99 - $36.99
    Current price $36.99

    Ignition Coil OMC 3854161 987680 Ignition Coil is a direct replacement for OMC 987680, 3854161, and interchangeable with GLM 72116.  This Ignition ...

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    Original price $54.00
    Original price $54.00 - Original price $54.00
    Original price $54.00
    Current price $36.99
    $36.99 - $36.99
    Current price $36.99
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  • Sold out

    Sierra 18-5513 V-6 DELCO EST CONVERSION KIT

    Sierra
    Original price $699.00
    Original price $699.00 - Original price $699.00
    Original price $699.00
    Current price $474.99
    $474.99 - $474.99
    Current price $474.99

    V-6 DELCO EST CONVERSION KIT. Converts GM V6 engines to electronic ignition. Sierra Marine Delco EST kits include:* Delco EST Distibutor* Coil* Ign...

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    Original price $699.00
    Original price $699.00 - Original price $699.00
    Original price $699.00
    Current price $474.99
    $474.99 - $474.99
    Current price $474.99
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    Sierra 18-5609 Starter

    Sierra
    Original price $325.00
    Original price $325.00 - Original price $325.00
    Original price $325.00
    Current price $190.99
    $190.99 - $190.99
    Current price $190.99

    Replaces: OE # 50-86976Fits:•V200 (1978 & up)•V-2000 (1978-88)•V225 (1980-81)

    Original price $325.00
    Original price $325.00 - Original price $325.00
    Original price $325.00
    Current price $190.99
    $190.99 - $190.99
    Current price $190.99
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