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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

      • Mercury - Mercruiser 8M0176524 Shift Cable Assembly
        $126.59
        $110.99

        Mercury - Mercruiser 8M0176524 Shift Cable Assembly Genuine OEM Mercury-Mercruiser part. Replacement Mercruiser shift cable assembly. Fits: MC‑I, R, MR, Alpha One & Gen II (1978 & newer) Supersedes: 865436A02

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      • Sierra 18-21006 Gimbal Bearing
        $110.99
        $77.99

        Sierra 18-21006 Gimbal Bearing Non-greasable gimbal bearing for Mercruiser Stern Drives. Fits Gen II (1998 -2010), Bravo I/II/III & X/XR/XZ (1996-2010) Interchangeable with: Mallory 9-72415 Mercruiser Stern...

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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 18-7160 O-Ring
        $0.89
        $0.67

        Sierra 18-7160 O-Ring I.D.: 2.635" or 67mm Width: 0.210" or 5.3mm Interchangeable with: GLM 83340 Mallory 9-76545 Mercruiser Stern Drive 25-31986 Mercury Marine 25-31986 Superseded to 18-7160-9

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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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      • Sierra 18-2430-9 Gasket Drain Screw (Priced Per Pkg Of 5)
        $17.99
        $13.49

        Sierra 18-2430-9 Gasket Drain Screw (Pkg Of 5) Used with: 3/8-16 drain/fill screw found on all MerCruiser and most Mercury/Mariner O/B gearcases Rubber coated, stainless steel washer Forms a tear resistant gearcase drain screw seal Package of...

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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 18-2643 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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      • Sterndrive Engineering Replacement Drive, Old Style R , MR , Alpha One
        $2,225.99
        $1,854.99

        Sterndrive Engineering Replacement Drive, Old Style R , MR , Alpha One Replaces most Mercruiser Sterndrives 160/165 HP from 1967-1977 Comes with a 8-1/8 old style input yoke Ships in two boxes Does NOT include install kit or anode kit Up to 300HP...

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      • Sierra 18-0577 Carrier Oil Seal Assembly
        $64.99
        $45.49

        Sierra 18-0577 Mercruiser Carrier Oil Seal Assembly Sierra Carrier Oil Seal Assembly fits IA/IB/IC & EZ Shift, MC-I, R, MR, Alpha One & Gen II. Interchangeable with: GLM 28370 Mallory 9-78100 Mercruiser Stern...

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      • Sierra 18-2604E Lower Shift Cable Kit Replaces 815471T1
        $257.99
        $180.99

        Mercruiser Bravo TFXtreme Lower Shift Cable Kit By Sierra Product Details: Uses: 18-2145E shift cable For: Bravo Kit Includes: SIE-18-2145 Bravo Shift Cable SIE-18-2149 Shift Cable End Kit SIE-18-2753-1 Shift Cable Bellows SIE-18-2615...

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      • Mercury - Mercruiser 8M0095485 Transom Repair Kit
        $532.79
        $443.99

        Mercury - Mercruiser 8M0095485 Transom Repair Kit Genuine OEM Mercury - Mercruiser part. Transom repair kit for Mercruiser Stern Drives. Fits: Mercruiser Bravo One, Bravo Two, Bravo Three - s/n 0B664190 thru 0F729999 Mercruiser Bravo One, Bravo...

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      • Sierra 18-2158 Shift Cable Assembly
        $111.99
        $78.49

        Sierra 18-2158 Shift Cable Assembly for Mercruiser Sierra 18-2158 Shift Cable Assembly has an old style stranded core wire with soldered tip. For Mercruiser #1 drives s/n 1562900-6225576 for forward installation into bell housing. Conduit Size:...

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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