Mercruiser Gearcase & Drive Parts

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Parts Selection Guide

Find the parts you need

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Prop Selection Guide

Find the right prop for your boat

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      • Quicksilver OEM MerCruiser Exhaust Bellows 8M0124227
        $44.99
        $37.49

        Quicksilver OEM MerCruiser Exhaust Bellows 8M0124227 This OEM exhaust bellows is designed for use with MerCruiser drives. Application Info: Fits MerCruiser Alpha One Gen I drives from 1983-1991 with serial numbers 06225577 thru 0D469858 Fits...

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      • EMP 10-02683 Mercury MerCruiser Drain Screw
        $6.23
        $5.19

        EMP 10-02683 Mercury MerCruiser Drain Screw This drain screw gasket is intended for use with Mercury & MerCruiser applications and meets all OEM requirements. Drain Screw Application: For Mercury/Mariner 1988 & later 2-Cyl 18-40HP; 3-Cyl...

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      • Sierra 18-2145E Shift Cable Replaces 865437A02
        $225.49
        $157.99

        Sierra 18-2145E TfXreme Shift Cable for Bravo Drives For use on: Bravo One, Two, & Three (All Ratios) Bravo One X/Two X, Three X (All Ratios) Bravo One XR/XZ(All Ratios) Bravo One XR Sportmaster (All Ratios) & Integrated...

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      • Sierra 18-2820 Outdrive Gasket Replaces 27-64818Q4
        $6.99
        $4.99

        Sierra 18-2820 Mercruiser Outdrive Gasket Sierra high-quality engine parts are designed to meet OEM specifications. For use on Mercruiser Stern Drives. Fits MC-I drives (s/n 6225576 & below) (1967-1982)  Interchangeable...

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      • Sierra 18-2414 Engine Coupler Replaces 97432A2
        $634.99
        $444.99

        Sierra 18-2414 Mercruiser Engine Coupler Sierra replacement engine coupler for Mercruiser Stern Drives. Sierra aftermarket engine parts are manufactured to meet or exceed OEM requirements. Fits: 165, 170, 470, 3.7 L s/n 6170297 & Up...

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      • Sierra 18-2645 Lower Unit Seal Kit Replaces 26-76868A04
        $159.99
        $100.99

        Sierra 18-2645-1 Mercruiser Lower Unit Seal Kit Sierra high-quality engine parts are designed to meet OEM specifications. Features all new and enhanced oil seals/o-rings for Bravo III drive compatibility. Matched to exceed OE form/fit/function...

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      • Sierra 18-2752 Alpha One Gen I U-Joint Bellows Replaces 36223A2
        $74.49
        $52.49

        Sierra 18-2752 Alpha One Gen I U-Joint Bellows Replaces 36223A2 This Sierra U-Joint bellows is for use with MerCruiser drives without ridge serial number 3443920 & below. Interchangeable with: GLM 89040 Mallory 9-72700 Mercruiser...

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      • Sierra 18-2345 Drive Shaft Bearing E-Ring
        $2.49
        $1.99

        Sierra 18-2345 Mercruiser Drive Shaft Bearing E-Ring Sierra replacement Drive Shaft Bearing E-Ring for Mercruiser Alpha One Gen II Stern Drives. Interchangeable with: GLM 21771 Mercruiser Stern Drive 53-815949 Application: Mercruiser...

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      • Sierra 18-2643 Upper Unit Seal Kit Replaces 26-16709A2
        $112.49
        $78.99

        Sierra 18-2643 Mercruiser Bravo Blackhawk Upper Gear Case Seal Kit Sierra high-quality engine parts are designed to meet OEM specifications. For Bravo - Blackhawk engines  Kit Includes: (1) 18-1240 Outdrive Seal (1) 18-2010 Oil Seal (1)...

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      • Sierra 18-2169 Shift Arm Replaces 45589A3
        $104.99
        $73.49

        Sierra 18-2169 Mercruiser Shift Arm Sierra replacement shift arm for Mercruiser Stern Drives. Fits MC-I, R, MR & Alpha One Interchangeable with: GLM 21420 Mallory 9-72475 Mercruiser Stern Drive 45589A3 45589A1  

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      • Sierra 18-7170 O-Ring Replaces 25-33504
        $1.99
        $1.49

        Sierra 18-7170 O-Ring Replaces 25-33504 I.D.: 1.365" or 34.7mm Width: 0.135" or 3.4mm Interchangeable with: Chrysler/Force/US Marine 25-33504 GLM 82200 Johnson/Evinrude Outboard 307239 Mallory 9-76502 Mercruiser Stern...

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      • Mercruiser 8M0204685 Washer
        $5.99
        $4.99

        Mercruiser 8M0204685 Washer Genuine OEM Mercury - Mercruiser part. Replacement bell housing washer for Mercruiser Bravo drives. Supersedes: 12-806241 Special Order Item.

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      • Sierra 18-2340 Shift Shaft Washer
        $1.99
        $1.49

        Sierra 18-2340 Shift Shaft Washer Sierra high-quality engine parts are designed to meet OEM specifications. For use on Mercruiser Stern Drives and Mercury Marine engines. Thickness: 1/16" Fits 1A/IB/IC & EZ Shift, MC-I, R, MR & Alpha One...

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      • Mercury - Mercruiser 8M0176523 Shift Cable Assembly
        $175.19
        $145.99

        Mercury - Mercruiser 8M0176523 Shift Cable Assembly Genuine OEM Mercury-Mercruiser part. Replacement shift cable for Mercruiser Bravo sterndrives.  Application Info: Fits Bravo I, Bravo II, & Bravo III - s/n 0B664190 &...

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      • Quicksilver OEM MerCruiser Alpha One Gen I Bellows Seal Kit 803097T1
        $335.99
        $279.99

        Quicksilver OEM MerCruiser Alpha One Gen I Bellows Seal Kit 803097T1 This OEM bellows kit is designed for use with Mercruiser Alpha I Gen II Sterndrives from 1991 - Current. Application Info: Fits MerCruiser Alpha One Gen II drives from 1991 to the...

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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!