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Parts Selection Guide

Find the parts you need

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Prop Selection Guide

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      Mercruiser Gearcase & Drive Parts

      • Sierra 18-1404 Mercruiser Bearing Repair Kit
        $172.49
        $134.49

        Sierra 18-1404 Mercruiser Bearing Repair Kit Sierra bearing repair kit for Mercruiser Alpha I Gen II gearcases. Fits: All Alpha 1/Gen II Gearcases 1998 and Newer Features all seals/bearings/o-rings for exact OE Fit OE Quality manufactured...

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      • Sierra 18-2077 Oil Seal
        $17.49
        $12.49

        Sierra 18-2077 Oil Seal O.D.: 1.689" or 43mm Shaft Size: 1.188" or 30.2mm Width: 0.247" or 6.3mm Interchangeable with: Chrysler/Force/US Marine 26-F697555 GLM 85130 Mallory 9-76119 Mercruiser Stern...

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      • Sierra 18-2160 Shift Cable Support Tube
        $12.99
        $8.99

        Sierra 18-2160 Shift Cable Support Tube Sierra replacement shift cable support tube for Mercruiser Stern Drives. Fits MC-I, R, MR & Alpha One Use with: 18-2157 Shift Cable Assembly 18-2158 Shift Cable Assembly 18-2159 Inner Shift...

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      • Sierra 18-2163 Shift Slide Screw
        $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 18-6353 Upper Gear Kit
        $352.99
        $246.99

        Sierra 18-6353 Upper Gear Kit Sierra replacement upper gear kit for Mercruiser Vazer, and Alpha I Gen II 1998 & Up (s/n 0L00040 & up) Interchangeable with: GLM 11238 Mercruiser Stern Drive 43-853643A2 Application: Mercruiser...

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      • Sierra 18-8370 Complete Lower Gearcase Rebuild Kit
        $181.99
        $127.49

        Sierra 18-8370 Mercruiser Complete Lower Gearcase Rebuild Kit Includes water pump and complete seal kits. Fits Mercruiser R/MR/Alpha I.  Kit Includes: (2) 18-2945 Drain Screw Gasket (1) 18-2340 Shift Shaft Washer (1) 18-2076 Oil Seal (1)...

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      • Mercruiser Gen II Replacement Upper Unit 1.47
        $1,289.99
        $1,074.99

        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 Click to Download Sterndrive Engineering SE116...

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      • Mercruiser Gen II Replacement Upper Unit 1.81
        $1,289.99
        $1,074.99

        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 43-883479A-2 Upper Unit Gear Set - (30/23)
        $1,601.99
        $1,393.49

        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 (2.20 & 2.43) - s/n 0M100001 -...

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      • Mercruiser 8M0098795 Engine Coupler Assembly
        $858.59
        $715.49

        Mercury - Mercruiser 8M0098795 Engine Coupler Assembly Genuine OEM Mercury-Mercruiser part. Fits: MCM 4.5L MPI, 6.2L MPI (Mercury) & GM V‑8 engines with Bravo drive Round shape Flywheel mount Special Order Item

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      • Sierra 18-1182 Roller Bearing Kit
        $92.49
        $64.99

        Sierra 18-1182 Roller Bearing Kit Sierra aftermarket roller bearing kit for Mercruiser Stern Drives. All of Sierra's aftermarket engine parts are manufactured to meet or exceed OEM requirements. For: Alpha I (Gen II) (1998 & up) (0L100040 &...

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      • Sierra 18-2076 Oil Seal
        $19.49
        $14.99

        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...

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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.

      Where to Begin?

      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. 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 loyalty rewards program, shipping perks, and price match guarantee are added bonuses to ensure each and every customers’ satisfaction