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Mercruiser Gearcase & Drive Parts

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guidebook

Parts Selection Guide

Find the parts you need

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  • 1) Engine Manufacturer:
  • 2) Part Type:
  • 3) Select Model:

Prop Selection Guide

Find the right prop for your boat

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  • Engine Horsepower:
  • Engine Model:
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      • Mercury - Mercruiser 19-889725 PVS Vent Plug
        $3.99
        $2.49

        Mercury - Mercruiser 19-889725 PVS Vent Plug Genuine OEM Mercury - Mercruiser propeller vent plug. Solid PVS vent plug (A46 A47 A48 P/N suffix) Solid PVS plug (A46, A47, A48 P/N suffix) Priced individually, sold @ multiples of 5. Supersedes: 19-856622

        Add to Cart
      • Sierra 18-2945-9 Drain Screw Gasket (2Pk) Replaces 12-191833
        $2.49
        $1.99

        Sierra 18-2945-9 Drain Screw Gasket (2 pack) This Sierra 18-2945 Drain Screw Gasket is used with 3/8-16 drain/fill screw found on all Mercruiser and most Mercury/Mariner O/Bs. This gasket is used in most lower units and sea water pumps. Sold as a 2...

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      • Sierra 18-2619-1 Outdrive Gasket Set Replaces 27-94966Q2
        $8.49
        $6.49

        Sierra 18-2619-1 Mercruiser Outdrive Gasket Set Sierra high quality engine parts are designed to meet or exceed OEM requirements. For Mercruiser R, MR, Alpha and Alpha One Gen II Outdrives (1983 and Newer) (s/n 6225577 & up). Kit...

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      • Prop PVS Vent Plug, Mercury - Mercruiser 19-889725T28
        $3.99
        $2.99

        Mercury - Mercruiser 19-889725T28 Prop PVS Vent Plug Genuine OEM Mercury-Mercruiser propeller vent plug. Small PVS Vent Plug (.280/7mm) Replaces: 19-889725047, 19-889725028, A46, A47, A48 suffix  

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      • Sierra 18-2614 Outdrive Gasket Set Replaces 27-64818Q4
        $6.99
        $5.49

        Sierra 18-2614 Outdrive Gasket Set Sierra replacement outdrive gasket set for Mercruiser Stern Drives. Sierra aftermarket engine parts are manufactured to meet or exceed OEM requirements. Fits: MC-I drives (s/n 6225576 & below) (1967-1982) Set...

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      • Sierra 18-2753-2 Shift Cable Bellows Replaces 74639A2
        $16.99
        $11.99

        Sierra 18-2753-2 Shift Cable Bellows Sierra replacement shift cable bellows for use with Mercruiser Stern Drives. Includes bellows clamp and hose clamp. Sierra aftermarket engine parts are manufactured to meet or exceed OEM requirements. For: All #1,...

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      • Sierra 18-2601-1 Transom Seal Kit
        $228.99
        $160.49

        Sierra 18-2601-1 Transom Seal Kit Sierra high quality replacement engine parts are designed to meet or exceed OEM requirements. Features Greasable Gimbal Bearing. Fits: R, MR, Alpha I (1983-1990) s/n 6225577 & Up, Alpha I SS (1986-1989) s/n...

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      • Sierra 18-2750 Exhaust Bellows Replaces 18654A1
        $30.99
        $21.49

        Sierra 18-2750 Exhaust Bellows Sierra replacement exhaust bellows for Mercruiser Stern Drives. The 18-2750 Exhaust Bellows includes a clamp and is manufactured to meet OEM requirements. Fits: MC-I, R, MR, Alpha One & Gen II, Vazer, Bravo &...

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      • Sierra 18-2100 Gimbal Bearing Replaces 30-879194A02
        $75.59
        $62.99

        Sierra 18-2100 Heavy Duty Gimbal Bearing Sierra replacement heavy duty gimbal bearing. Sierra engine parts are manufactured to meet or exceed OEM requirements. Key Features: Link Belt Greasable Fits all OMC, Cobra, and King Cobra...

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      • Sierra 18-2174 U-Joint Replaces 75832T1
        $61.99
        $46.99

        Sierra 18-2174 Heavy Duty U-Joint Cross and Bearing Sierra replacement heavy duty u-joint includes both a straight and a 90 degree grease fitting. Fits: Alpha I Units s/n B418819 & Above, also fits Alpha I SS & Bravo Interchangeable...

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      • Sierra 18-2615 Outdrive Gasket Set Replaces 16755Q1
        $6.49
        $4.99

        Sierra 18-2615 Mercruiser Bravo Outdrive Gasket Set Sierra high-quality replacement engine parts are designed to meet OEM specifications. For All Bravo Outdrives. Interchangeable with: GLM 39640 Mallory 9-62604 Mercruiser Stern...

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      • Sierra 18-2648 Upper Unit Seal Kit Replaces 26-32511A1
        $26.99
        $18.99

        Sierra 18-2648 Upper Unit Seal Kit Sierra replacement upper unit seal kit for Mercruiser Stern Drives. Sierra replacement engine parts are manufactured to meet or exceed OEM requirements. For: #1 Units (Including Alpha) (Also fits 888 stern drive)...

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      • Sierra 18-8206 Transom Seal Kit Replaces 30-803099T1
        $269.99
        $205.49

        Sierra 18-8206-1 Mercruiser Alpha I Gen II Transom Seal Kit Sierra replacement transom seal kit for all Mercruiser Alpha I Gen II Sterndrives from 1991 - Current. Includes greasable gimbal bearing. Interchangeable...

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      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