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OMC Internal Engine Parts

7463
guidebook

Parts Selection Guide

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Prop Selection Guide

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      • Sierra 18-2945-9 Drain Screw Gasket (2Pk) Replaces 12-191833
        Starting At: $1.99

        Sierra 18-2945-9 Drain Screw Gasket (2 pack) This Sierra 18-2945 Drain Screw Gasket is used with 3/8-16 drain/fill screw found on all Mercruiser and most Mercury/Mariner O/Bs. This gasket is used in most lower units and sea water pumps. Sold as a 2...

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      • Sierra 18-4248 Drain/Fill Plug Washer Replaces 0311598
        List Price: $0.94
        Starting At: $0.71

        Sierra 18-4248 Drain/Fill Plug Washer for Johnson, Evinrude, OMC Sierra high-quality engine parts are designed to meet OEM specifications. Plastic plug used with Drain Screw 18-2387. Interchangeable with: Johnson/Evinrude...

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      • Sierra 18-0549 Plug Off Cap Replaces 3852476
        List Price: $10.99
        Starting At: $8.49

        Sierra 18-0549 Plug Off Cap 1" I.D. Sierra high quality engine parts are designed to meet OEM specifications. For V8 Stern Drives and Inboards 1977 - present. Interchangeable with: GLM 22290 Johnson/Evinrude...

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      • Sierra 18-1402 Hydraulic Lifter Replaces 72638
        List Price: $11.99
        Starting At: $8.99

        Sierra 18-1402 Hydraulic Lifter Sierra high-quality replacement parts are designed to meet OEM specifications. For OMC & Volvo 3.0L/181 CID. Fits MCM/MIE GM 4 cyl. V-6 & V-8 (283, 305, 327, 350, 454 & 482 cid) engines. Interchangeable...

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      • Sierra 18-7145 O-Ring Replaces 25-64068
        List Price: $0.98
        Starting At: $0.75

        Sierra 18-7145 O-Ring Sierra high-quality engine parts are designed to meet OEM specifications. I.D.: 0.250" Width: 0.100" Interchangeable with: GLM 81080 Johnson/Evinrude Outboard 333572 Mallory 9-76500 Mercruiser Stern...

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      • Sierra 18-0182 Thermostat Gasket Replaces 27-62386001
        List Price: $1.99
        Starting At: $1.49

        Sierra 18-0182 Thermostat Gasket Thermostat Gasket for Johnson/Evinrude Outboards, Mercury engines, Mercury Race Outboards and Mercury Sport Jet engines. Interchangeable with: GLM 30610 Johnson/Evinrude...

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      • Sierra 18-0868 Intake Manifold Gasket Set Replaces 27-17145
        List Price: $29.99
        Starting At: $20.99

        Sierra 18-0868 Intake Manifold Gasket Set Sierra replacement intake manifold gasket set for OMC Stern Drives, Mercruiser Stern Drives, and Volvo Penta engines. For OMC 5.7L 1994, 1996-97 Fits MCM/MIE GM V-8 (305 & 350 cid) engines (1975 &...

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      • Sierra 18-4253-9 Drain Screw O-Ring (5Pk) Replaces 0336982
        List Price: $2.49
        Starting At: $1.99

        Drain Screw O-Ring (5 pk) for Johnson, Evinrude, OMC Used with Drain Screw 18-1236 and is a special order - est. 10 Days. Replaces: OMC - 336982 Mallory 9-76653 GLM 45290  

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      • Sierra 18-1308 Rod Bearing Replaces 23-85701
        List Price: $11.49
        Starting At: $8.99

        Sierra 18-1308 Standard Rod Bearing for Mercruiser Stern Drives Sierra high-quality engine parts are designed to meet OEM specifications. Standard size Interchangeable with: Mercruiser Stern...

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      • Sierra 18-3879 Head Gasket Replaces 27-879150140
        List Price: $42.99
        Starting At: $29.99

        Sierra 18-3879 Head Gasket Sierra replacement head gasket for Mercruiser Stern Drives, OMC Stern Drives, and Volvo Penta engines. Fits: GM 262 (4.3L) CID Engines Interchangeable with: Crusader 33408 GLM 36100 Johnson/Evinrude...

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      • Sierra 18-1237 Oil Pan Gasket Replaces 27-13865
        List Price: $46.49
        Starting At: $32.49

        Sierra 18-1237 Oil Pan Gasket for 265 - 400 hp Sierra replacement oil pan gasket for Mercruiser Stern Drives, OMC Stern Drives and Volvo Penta engines. Fits MCM/MIE GM V-8 (305, 350 & 377 cid) engines w/ 1 pc. RM seal (1985 &...

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      • Sierra 18-1213 Timing Cover Seal
        List Price: $29.99
        Starting At: $20.99

        Timing Cover Seal for most GM Based Engines - Special Order est. 10 Days Fits: 2.5L/153 CID 3.0L/181 CID I-6/230CID I-6/250CID 4.3L/V-6 5.0L/305 CID 5.7L/350 CID Replaces: Crusader 7080310 Mallory 9-61610 Mercury 59341A 1, 26-97335...

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      • Sierra 18-2673 Upper Unit Seal Kit Replaces 0987603
        List Price: $55.49
        Starting At: $38.99

        Sierra 18-2673 OMC Cobra Upper Unit Seal Kit Sierra replacement engine parts are designed to meet OEM specifications. For Use On All Cobras (1986-89). Interchangeable with: GLM 87654 Johnson/Evinrude Outboard 984459 986364 987603 OMC...

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      • Sierra 18-2996 Outdrive Seal Replaces 3852560
        List Price: $2.99
        Starting At: $2.49

        Outdrive Seal for Volvo, OMC Replaces: OMC - 3852560, 0911823 GLM - 86300 Mallory - 9-76508 Volvo 3852560 Aqua Power 473 GLM 86300 Redline RL2996  

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      • Sierra 18-4024 Valve Stem Seal
        List Price: $2.99
        Starting At: $2.49

        Sierra 18-4024 Intake Valve Stem Seal for 4.3L/5.0L/5.7L Sierra high-quality engine parts are designed to meet OEM specifications. For Mercruiser, OMC, and Volvo Penta applications. For: Chevy 4.3L/5.0L/5.7L Interchangeable...

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      OMC Sterndrive Gaskets and Seals are here and in stock.