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      Mercruiser Gearcase & Drive Parts Product Listings

      • Sierra 18-2128 Center Socket Replaces 393831
        $130.39
        $93.89

        Sierra 18-2128 Mercruiser, OMC, and Volvo Center Socket Fits: IA/IB/IC & EZ, MC-I, R,MR, Alpha One Gen II (Serial No.OL949778 & below) Bravo (Serial No. OM111207 & below) MC II & TS All OMC Cobra Interchangeable...

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      • Mercury - Mercruiser 18-54929 Cotter Pin
        $6.99
        $6.49

        Mercury - Mercruiser 18-54929 Cotter Pin Genuine OEM Mercury - Mercruiser part. Replacement cotter pin for Mercruiser Sterndrives. . Supersedes: 18-34212Special Order Item: This product is ordered specifically for your application. To help ensure proper...

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      • EMP 94-00801 MerCruiser/Volvo U-Joint
        $60.00
        $50.00

        EMP 94-00801 MerCruiser/Volvo/OMC U-Joint This U-joint is intended for use on MerCruiser, Volvo, OMC engines and meets all OEM requirements. U-Joint Application: For MerCruiser 1962-1998 1-Drive (s# 1684188-0B418818), MC-2/TR/TRS, Alpha One & SSM...

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      • Quicksilver 25-8M0204651 O-Ring Image
        $3.99
        $3.49

        Quicksilver 25-8M0204651 O-Ring MerCruiser Thermostat Housing O-Ring 8M0204651 is for use on MerCruiser marinized sterndrive or inboard V6 and V8 engines made by General Motors. Genuine OEM Mercury - Mercruiser part. Application: Fits MCM/MIE GM...

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      • Sierra 18-2140 Engine Mount Bolt Kit
        $42.49
        $30.59

        Sierra 18-2140 Engine Mount Bolt Kit Sierra high-quality engine parts are designed to meet OEM specifications. For Mercruiser I engines. Kit Includes: (1) 18-0681 Washer (1) 18-3729 Motor Mount Bolt Interchangeable with: GLM 21811

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      • Mercury - Mercruiser 26-823894 Seal - Oil
        $29.99
        $26.49

        Mercury - Mercruiser 26-823894 Seal - Oil Genuine OEM Mercury - Mercruiser part. Application: Alpha One Gen II (1998 and up) - s/n #0L100040 & up Alpha One Gen II - (1991 - 1995) - s/n #0D469859 thru 0F679999 Alpha One Gen II - (1996 - 1997) -...

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      • Sierra 18-7157 O-Ring
        $5.19
        $4.49

        Sierra 18-7157 O-Ring I.D.: 3.500" or 88.9mm Width: 0.210" or 5.3mm Interchangeable with: GLM 83410 Mallory 9-76542 Mercruiser Stern Drive 25-29976 Mercury Marine 25-29976

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      • Sierra 18-3719 Pinion Nut Replaces 11-35921
        $5.99
        $4.69

        3/8" (18mm) Pinion Nut for Mercury, Mercruiser, OMC 3/8"-18mm Replaces: OMC - 0314730 Mallory - 9-78013 GLM - 11190 Pro Marine - 18-3719 Sterndrive Engineering - 98-102-37 Mercury 11-35921  

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      • Sierra 18-3752 Retaining Nut Replaces 8168112
        $40.99
        $31.99

        Sierra 18-3752 Mercruiser Drive Shaft Housing Retaining Nut Sierra high-quality engine parts are designed to meet OEM specifications. For Mercruiser Stern Drives. Interchangeable with: GLM 28350 Mallory 9-72154 Mercruiser Stern...

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      • Sierra 18-2617 Outdrive Gasket Set Replaces 27-35996A1
        $15.89
        $13.49

        Sierra 18-2617 Mercruiser Outdrive Gasket Set For Old Style Outdrives 1A/1B/1C And EZ Shift 1964-1966 Kit Includes: (1) 18-2556 Drive Shaft Housing To Bell Housing Gasket (1) 18-2840 Bell Housing Gasket (1) 18-7153 O-Ring (1) 18-7170...

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      • Mercury - Mercruiser 25-85549 O Ring @2
        $4.49
        $3.99

        Mercury - Mercruiser 25-85549 O Ring @2 Genuine OEM Mercury-Mercruiser part. - Minimum Order Quantity 2.Special Order Item: This product is ordered specifically for your application. To help ensure proper fitment, please confirm compatibility with your...

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      • Mercury - Mercruiser 26-38970 Water Tube Seal @5
        $4.49
        $3.99

        Mercury - Mercruiser 26-38970 Water Tube Seal @5 This is a genuine OEM replacement part sold in a pack of 5. Fits MC I, R, MR, & Alpha One drives Replaces: GLM 12830 Mallory 9-43604 OMC 0508474 Redline RL3110 Sierra 18-3110...

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      • Sterndrive Engineering Repl Lower Unit Mercruiser Bravo One
        $1,783.80
        $1,486.50

        Sterndrive Engineering Repl Lower Unit Mercruiser Bravo One It can be modified to back fit 1988 - 1991 90-121-02 has a side water pick up 90-122-02 has a side and low water pick up Item is subject to a 20% restocking fee (Boat Covers, Bimini...

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      • CLEARANCE
        Mercury - Mercruiser 26-54927 Seal
        $29.49
        $25.99

        Mercury - Mercruiser 26-54927 SealSpecial Order Item: This product is ordered specifically for your application. To help ensure proper fitment, please confirm compatibility with your engine model using our Parts Finder & Schematics Guide before...

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      • Mercury - Mercruiser 27-54014Q-1 Gasket Set
        $11.99
        $10.99

        Mercury - Mercruiser 27-54014Q-1 Gasket SetSpecial Order Item: This product is ordered specifically for your application. To help ensure proper fitment, please confirm compatibility with your engine model using our Parts Finder & Schematics Guide...

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      Mercruiser OEM Engine Parts Finder

      MerCruiser Gearcase

      Shims, yokes, and spools may throw your head in a whirl. Just the idea of “gearcase” is an intimidating one, especially for newer boaters and those just taking on the do-it-yourself route. You’ve made a wise choice with your MerCruiser engine, but are now hoping to perform preventative maintenance or repair a busted part. Wholesale Marine has all that you need for your MerCruiser gearcase for pre-Alpha, Alpha, and Bravo drives.

      Shop for Your MerCruiser Gearcase and Drive Part Needs

      Whether a pro boater or a casual weekend cruiser, your MerCruiser gearcase needs attention from time to time. The delicate intricacies of the gearcase are not to be taken lightly, and we recommend referring to your engine’s manual, manufacturer’s website, or a number of other resources as you diagnose or update your boat’s engine. Once you know what you are looking for, we strive to make it as easy as possible to locate it, beginning with our Parts Selection Guide. You can depend on Wholesale Marine to provide high quality Mercury outboard parts and Mercury sterndrive parts from the top brands in the industry. We offer a wide array of MerCruiser gearcase components. Both upper and lower gear housing seal kits are offered, each one meeting OEM standards and including all that you need. Upper unit gears, shift spools, replacement drives, shims, O-rings, and seals make this an excellent comprehensive site for all of your MerCruiser gearcase needs.

      Whether an engine expert or a newer novice, we want to assist you in your MerCruiser gearcase journey. We have a highly-trained team full of experienced boaters who have been in your shoes and can help you choose the right part from the get-go. We are here Monday through Friday, 9:00 AM to 6:00 PM EST, at (877) 388-2628 to help you narrow down your search and select just the right part for the job. Our Captain’s Club Rewards Program, shipping perks, and price match guarantee are added bonuses to ensure each and every customers’ satisfaction. Remember you can always depend on Wholesale Marine for high quality Mercury outboard parts and Mercury sterndrive parts from the top brands in the industry. So plan to call us for all your boating needs today!