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      Mercruiser Gearcase & Drive Parts Product Listings

      • Sierra 18-7153-9 O-Ring (Priced Per Pkg Of 5)
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        $10.89
        $8.49

        Sierra 18-7153-9 O-Ring (Priced Per Pkg Of 5) Special Order est. 10 Days Supersedes 18-7153

      • Mercruiser Gen II Replacement Upper Unit 1.47
        $1,409.99
        $1,174.99

        Sterndrive Engineering Mercruiser Alpha One Gen II Replacement Upper Unit 1.47 Ratio For Mercruiser Alpha One Gen II Sterndrives 1991 - Present. SE116 1.47 Ratio also replaces the 1.5 Ratio

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      • Mercury - Mercruiser 8M0137263 Upper Shift Shaft
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        $83.49
        $73.49

        Mercury-MerCruiser 8M0137263 Upper Shift Shaft for Alpha One Gen II The Mercury-MerCruiser 8M0137263 Upper Shift Shaft is a genuine OEM Mercury-MerCruiser replacement part for compatible Alpha One...

      • Sierra 18-2076 Oil Seal
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        $22.29
        $17.39

        Sierra 18-2076 Oil Seal O.D.: 1.690" or 42.9mm Shaft Size: 1.188" or 30.2mm Width: 0.360" or 9.1mm Type: Line Cutter Seal Interchangeable with: Chrysler/Force/US...

      • Sierra 18-2349 Shift Shaft Sleeve
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        $9.19
        $7.79

        Sierra 18-2349 Shift Shaft Sleeve Sierra replacement shift shaft sleeve for Mercruiser Stern Drives. For: Ratios: 1:47, 1:62, 1:81 & 1:94 For: Gen II (1998 & Up), (0L100040 & Up) Thickness:...

      • Sierra 18-2357 Cross Pin
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        $8.59
        $6.99

        Sierra 18-2357 Cross Pin for Mercury and Mercruiser Sierra replacement cross pin for Mercury Outboards and Mercruiser Stern Drives. Fits: I, MC-I, R, MR, Alpha One, Alpha One Gen II and...

      • Sierra 18-2404 Gear Repair Kit
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        $659.19
        $474.59

        Gear Repair Kit - Special Order est. 10 Days

      • MerCruiser 5-5010181CP Alpha One Gen I 1.81 Standard Rotation Outdrive
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        $5,082.59
        $4,235.49

        MerCruiser 5-5010181CP Alpha One Gen I 1.81 Standard Rotation Outdrive This is a replacement for MerCruiser Alpha One Gen I (1983-1990) outdrives with a 1.81 gear ratio, 6216687-0F386995 ,...

      • Mercury - Mercruiser 15-8M0063267 Shim Set
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        $27.99
        $24.49

        Mercury - Mercruiser 15-8M0063267 Shim Set Genuine OEM Mercury-Mercruiser part. Supersedes: 15-42637A-1Special Order Mercury Marine Information: Additional Handling Time: Item transfers from an...

      • Mercruiser 43-883479A-2 Upper Unit Gear Set - (30/23)
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        $2,070.99
        $1,739.49

        Mercruiser 43-883479A-2 Upper Unit Gear Set - (30/23) Genuine OEM Mercury-Mercruiser part. Replacement upper unit gear set for Mercruiser sterndrives. Fits: Bravo I & Perf. (1.65), II (2.20) & III (2...

      • Mercury - Mercruiser 848061-1 Prop Shaft Cover
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        $29.49
        $24.99

        Mercury - Mercruiser 848061-1 Prop Shaft Cover Genuine OEM Mercury-Mercruiser part. .Special Order Item: This product is ordered specifically for your application. To help ensure proper fitment,...

      • Sierra 18-2396 Trim Cylinder Pivot Pin
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        $95.59
        $68.79

        Sierra 18-2396 Trim Cylinder Pivot Pin Sierra Trim Cylinder Pivot Pin for Mercruiser Bravo Drives. For: Rear Bravo Overall Length: 9-1/4" Shaft Length: 7-1/2" Interchangeable...

      • Sierra 18-3236 Housing Align Bushing
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        $32.59
        $23.49

        Sierra 18-3236 Mercruiser Housing Align Bushing Sierra replacement housing align bushing for Mercruiser Stern Drives. Fits: #1R/MR/Alpha Interchangeable with: GLM 21423 Mercruiser...

      • SHIM Volvo Penta 941832-8
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        $14.04
        $11.70

        Volvo Penta VOL-941832-8 ShimSpecial Order Volvo Penta Marine Information: Additional Handling Time: Item transfers from an alternate warehouse requires an additional 3–5 business days to ship. Non...

      • Mercruiser 15-45691A-1 Shim Set
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        $11.99
        $11.49

        Mercruiser 15-45691A-1 Shim Set Genuine OEM Mercruiser shim set. .Special Order Mercury Marine Information: Additional Handling Time: Item transfers from an alternate warehouse requires an...

      • Mercury - Mercruiser 26-38452 Seal
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        $3.99

        Mercury - Mercruiser 26-38452 Seal Genuine OEM Mercury/Mercruiser part. This item is sold in interval quantities of 2 .Special Order Item: This product is ordered specifically for your application...

      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 Wholesale 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!