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      • Sierra 18-15520 V-Belt Replaces 0912714
        $35.99
        $25.49

        OMC, Mercruiser V-Belt - Effective Length 52", Top Width 29/64" Replaces: Mallory 9-55001 Mercury 57-34359, 57-37619Q, 57-37619 OMC 0912714, 0509287, 0509288 Details: High strength synthetic cords resist shockload...

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      • Sierra 18-4258 Pipe Plug
        $5.99
        $4.99

        Sierra 18-4258 MerCruiser Pipe Plug Sierra stainless steel pipe plug with square drive. Note: Pipe sealant with Teflon is recommended for use on plug threads. Thread Size: 3/4" - 14 NPT Use With: 18-1949 Manifold Spacer 18-1984 Manifold...

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      • Sierra 18-0398-9 Thermostat Gasket (Priced Per Pkg Of 2)
        $6.99
        $5.49

        Sierra 18-0398-9 Thermostat Gasket (Priced Per Pkg Of 2) Sierra replacement thermostat gasket for Mercruiser, Volvo Penta, and OMC Stern Drives. Use with aluminum exhaust manifold. Fits: 110/120 & 140/150/160 (I/L 6 cyl.) also MCM 3.0L/LX...

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      • Sierra 18-3349 Water Pump Housing Kit
        $62.99
        $43.99

        Sierra 18-3349 OMC Water Pump Housing Kit Sierra high-quality engine parts are designed to meet OEM specifications. For All OMC Cobra Drives-2.3 (1987-90), 2.5 (1986), 3.0 (1986-93), 4.6 (1989) For All OMC Cobra Drives 5.0 (1986-93), 5.7 (1986-93),...

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      • Sierra 18-0183-1 Exhaust Manifold Gasket
        $16.99
        $12.99

        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 Manifold 18-1998-1 Manifold 18-1962-1...

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      • Sierra 18-2859 Manifold End Cap Gasket
        $5.49
        $3.99

        Sierra 18-2859 Manifold End Cap Gasket for OMC Stern Drive Sierra high-quality engine parts are designed to meet OEM specifications. Interchangeable with: Barr OMC47311131 OMC Stern Drive 311131

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      • Sierra 18-3086 Impeller Replaces 9-45281
        $40.99
        $28.49

        Sierra 18-3086 OMC/ Johnson Evinrude Water Pump Impeller Sierra replacement water pump impeller for OMC Stern Drives. Use with: 18-3286 Impeller Kit 18-3386 Water Pump Kit Interchangeable with: GLM 89760 Mallory 9-45281 OMC Stern...

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      • Sierra 18-4264 Pipe Plug
        $4.99
        $3.99

        Sierra 18-4264 Pipe Plug Sierra high-quality engine parts are designed to meet OEM specifications. For use on Mercruiser Stern Drives and Mercury Marine engines. Using Pipe Sealant with Teflon is recommended for use on plug threads. Thread Size:...

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      • Sierra 18-8502 Exhaust Manifold Mounting Kit
        $73.49
        $51.49

        Sierra 18-8502 Exhaust Manifold Mounting Kit for V-8 Small Block Sierra high-quality engine parts are designed to meet OEM specifications. OMC GM Small Block V8 305-350cu.in. (1979-89)  OMC/Volvo...

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      • Sierra 18-3206 Water Pump Housing Replaces 0984744
        $41.49
        $28.99

        Sierra 18-3206 OMC Water Pump Housing Sierra high-quality engine parts are designed to meet OEM specifications. For OMC Cobra engines Interchangeable with: GLM 12405 Johnson/Evinrude Outboard 984744 Mallory 9-43200 OMC Stern...

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      • Sierra 18-8534 Exhaust Elbow Mounting Kit
        $18.49
        $12.99

        Sierra 18-8534 Exhaust Elbow Mounting Kit Sierra replacement exhaust elbow mounting kit for use on OMC GM Small Block engines. OMC GM Small Block V8 305-350 cu. in. (1979-1989) & multi application for Ford & GM risers Use with: 18-1921...

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      • EMP 26-01644 OMC Cap
        $11.03
        $9.19

        EMP 26-01644 OMC Cap This cap is intended for use with OMC & Cobra engines and meets all OEM requirements. Cap Application: For OMC, Stringer, Cobra & Cobra SX 5.0-8.2L V8 185-280HP...

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      • Sierra 18-2861-1 Manifold End Cap Gasket Replaces 0311121
        $11.49
        $10.49

        Sierra 18-2861-1 Manifold End Cap Gasket for Older OMC 4 Cyl Sierra replacement manifold end cap gasket for OMC Stern Drives. For: 1977 140 HP 1974-76 140 HP 1973 100,120,140 HP 1973 165 HP 1972 100,120 HP 1965-71 120 HP Interchangeable...

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      • Sierra 18-0893 Water Pump Back-In Plate Gasket
        $0.89
        $0.72

        Water Pump Back-in Plate Gasket for 4.3/5.0/5.7L GM by Sierra - Special Order est. 10 Days For use on Mercruiser I/O, OMC Sterndrive/Cobra, & Volvo Penta, GM 4.3L, 5.0L & 5.7L, engines Replaces:   Mercury 27-35380 OMC 3850595...

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      • Sierra 18-2541 Rubber Seal
        $9.99
        $7.49

        Sierra 18-2541 Rubber Impeller Housing Seal for OMC Cobra Sierra replacement rubber seal for OMC Stern Drives. Interchangeable with: GLM 86630 Johnson/Evinrude Outboard 911704 OMC Stern Drive 911704

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      OMC Sterndrive Cooling System Components