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      Mercruiser Gearcase & Drive Parts Product Listings

      • Mercruiser 15-35980A-1 Shim Set
        $16.99
        $15.49

        Mercruiser 15-35980A-1 Shim Set Genuine OEM Mercruiser Stern Drive shim set. .Special Order Mercury Marine Information: Additional Handling Time: Item transfers from an alternate warehouse requires an additional 1–3 business days to ship. Non...

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      • Sierra 18-2163 Shift Slide Screw
        $2.39
        $1.99

        Sierra 18-2163 Mercruiser Shift Slide Screw This high-quality Sierra replacement part fits MC-I, R, MR, Alpha One & Gen II engines. Interchangeable with: GLM 21090 Mallory 9-72152 Mercruiser Stern Drive 10-31700

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      • Sierra 18-2847 Outdrive Gasket
        $19.29
        $13.89

        Sierra 18-2847 Outdrive Gasket Sierra high-quality engine parts are designed to meet OEM specifications. Fits 215E, 215H, TR and TRS drives. Interchangeable with: Barr MC472754014 GLM 31120 Mercruiser Stern...

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      • Mercruiser 15-36178A02 Shim Set
        $14.99
        $13.99

        Mercruiser 15-36178A02 Shim Set Genuine OEM Mercruiser stern drive upper bearing shim set. Special Order Mercury Marine Information: Additional Handling Time: Item transfers from an alternate warehouse requires an additional 1–3 business days to...

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      • Mercruiser Gen II Replacement Upper Unit 1.81
        $1,409.99
        $1,174.99

        Sterndrive Engineering Mercruiser Gen II Replacement Upper Unit 1.81 Ratio Replacement Upper Unit for Mercruiser Alpha One Gen II Sterndrives 1991- Current. SE116 1.81 Ratio replaces the 1.84 Ratio Click to Download Sterndrive Engineering...

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      • Mercruiser 33981A06 Shift Cable Assembly
        $156.99
        $137.99

        Mercury - Mercruiser 33981A06 Shift Cable Assembly Genuine OEM Mercury-Mercruiser part. Fits: Vazer Special Order Mercury Marine Information: Additional Handling Time: Item transfers from an alternate warehouse requires an additional 1–3 business...

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      • Mercury - Mercruiser 39-802559 Ring Set-Std
        $167.99
        $147.99

        Mercury - Mercruiser 39-802559 Ring Set-Std Genuine OEM Mercury-Mercruiser part. Special Order Mercury Marine Information: Additional Handling Time: Item transfers from an alternate warehouse requires an additional 1–3 business days to ship. Non...

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      • Mercury Automatic Transmission Fluid - 1 Gal
        $39.49
        $34.99

        Mercury 8M0173230 Automatic Transmission Fluid - 1 Gal Engineered for harsh marine environments. Specifically formulated and recommended for use in Mercury Outboards, MerCruiser Inboards, and Tow Sport transmissions requiring DexronIII fluid...

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      • Quicksilver OEM MerCruiser Bellows Clamp 54-8M0204733
        $6.49
        $5.99

        Quicksilver OEM MerCruiser Bellows Clamp 54-8M0204733 This genuine OEM part is designed for use with MerCruiser bellows. This bellows clamp supersedes 54-866507. Application Info: MerCruiser Alpha One Gen I from 1983-1990 serial numbers 06225577 thru...

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      • Sierra 18-6352 Upper Gear Kit
        $294.19
        $211.79

        Gen II & Vazer (1.94:1 & 2.40:1 Ratios) Upper Gear Set For Alpha Gen II and Vazer 1.94:1 and 2.40:1 Ratios (20 - 24 Teeth) Used with 18-2411 Drive Shaft Housing Assembly and 18-2419 Complete Upper Gear Case Replaces: Mercury 43-853642A 2 GLM 11244

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      • Mercruiser 43-853640A-2 Upper Gear Set - 1.62/2.0
        $594.49
        $499.49

        Mercruiser 43-853640A-2 Upper Gear Set - 1.62/2.0 Genuine OEM Mercury-Mercruiser part. Fits: Alpha One Gen II (s/n 0L000040 and above) (1998 & newer) 24-24 Teeth 1.62 & 2.00 Ratio .Special Order Item: This product is ordered specifically...

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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!