Mercruiser Gearcase & Drive Parts

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Parts Selection Guide

Find the parts you need

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      • Sierra 18-9861 MerCruiser Hinge Pin Tool Replaces 78310
        $27.99
        $19.49

        Sierra 18-9861 MerCruiser Hinge Pin Tool Replaces 78310 This Sierra hinge pin tool is designed to remove and install hinge pins from all MerCruiser drive units. Replaces: Mercury 91-78310 Mallory 9-79805 GLM 90200 Pro...

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      • Sierra 18-2190 Shift Cable Replaces 865436A02
        $94.99
        $66.99

        Sierra 18-2190 MerCruiser Aft Installation Shift Cable Sierra high-quality parts are designed to meet OEM specifications. Mercruiser 1 drives s/n 6225577 & Up for AFT installation into bell housing For use in applications using core wire with...

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      • Sierra 18-21001 Gimbal Bearing Replaces 30-879194A02
        $94.49
        $65.99

        Sierra Marine 18-21001 Mercruiser Gimbal Bearing Non-greasable Mercruiser gimbal bearing from Sierra Marine. Sierra engine parts are designed to meet or exceed OEM requirements. Fits: MC-1, R, MR, and Aplha (1974-97), Gen II Aplha (1991-97), Bravo...

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      • Sierra 18-2751 MerCruiser Alpha One Gen I U-Joint Bellows Replaces 60932A4
        $69.49
        $48.99

        Sierra 18-2751 MerCruiser Alpha One Gen I U-Joint Bellows Replaces 60932A4 This Sierra u-joint bellows is designed for use with MerCruiser Alpha One Gen I drives. Application Info: Fits MerCruiser Alpha One Gen I drives from 1983-1991 with serial...

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      • Mercruiser Alpha One Gen II Outdrive 300 HR Service Kit
        $596.99
        $497.49

        Mercruiser Alpha One Gen II Outdrive 300 Hour Service Kit This Mercruiser Alpha One Gen II Outdrive 300 Hour Service Kit has everything needed to service your outdrive in one convenient kit. For Alpha One Gen II Outdrives (1992 and Newer) Kit...

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      • Sierra 18-1705 Alpha Gimbal Housing Hinge Pin Replaces 77123
        $28.49
        $19.99

        Sierra 18-1705 Alpha Gimbal Housing Hinge Pin Replaces 77123 This Sierra gimbal housing hinge pin is designed for use with MerCruiser Alpha Gen I & II drives with a grease port. Application Info: Fits MerCruiser Alpha One Gen I drives from...

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      • Sierra 18-1710 MerCruiser Bravo Bellows Flange Ring Replaces 862209
        $8.49
        $6.49

        Sierra 18-1710 MerCruiser Bravo Bellows Flange Ring Replaces 862209 This Sierra bellows flange ring is for MerCruiser Bravo drives. Application Info: Fits Bravo I, Bravo II, & Bravo III drives from 1988-1998 with serial numbers 0B664190 and...

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      • Sierra 18-2756 MerCruiser Bravo U-Joint Bellows Replaces 8M0062406
        $78.99
        $54.99

        Sierra 18-2756 MerCruiser Bravo U-Joint Bellows Replaces 8M0062406 This Sierra U-joint bellows is designed for use with MerCruiser Bravo drives and comes with a clamp. Application Info: Fits MerCruiser Bravo I, Bravo II, Bravo III drives from...

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      • Sierra 18-9099 MerCruiser Trailering Clips Replaces 817019Q2
        $41.99
        $29.49

        Sierra 18-9099 MerCruiser Trailering Clips Replaces 817019Q2 These Sierra trailering clips are designed for use with MerCruiser drives. I.D.: 3/4" Length: 11-1/8" Application Info: Fits Alpha One Gen I drives from 1983-1991 with serial numbers...

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      • Sierra 18-2100K Seal & Bearing Kit
        $97.99
        $68.99

        Sierra 18-2100K Seal & Bearing Kit Sierra replacement greasable seal and bearing kit for Mercruiser Stern Drives. Sierra aftermarket engine parts are manufactured to meet or exceed OEM requirements. Includes a heavy duty gimbal bearing and oil seal...

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      • Sterndrive Engineering Repl Lower Unit Merc Alpha One GenII
        $1,529.99
        $1,274.99

        Sterndrive Engineering Replacement Lower Unit Mercruiser Alpha One Gen II Looking for a reliable replacement lower unit for your Mercruiser Alpha One Gen II sterndrive? Sterndrive Engineering offers high-quality replacement units designed to fit models...

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      • Quicksilver OEM MerCruiser Hinge Pin Tool 78310
        $32.49
        $27.99

        Quicksilver OEM MerCruiser Hinge Pin Tool 78310 This OEM hinge pin tool is designed to remove and install hinge pins from all MerCruiser drive units. Replaces: Sierra 18-9861 Mallory 9-79805 GLM 90200 Pro...

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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!