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      Mercury Outboard Gearcase & Drive Parts Product Listings

      • Quicksilver 12-8M0187157 Drain Screw Gasket - Blue Image
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        $1.19
        $0.99

        Mercury - Mercruiser 12-8M0187157 Drain Screw Gasket - Blue Used with the 3/8 - 16 drain/fill screw found on all Mercruiser and most Mercury/Mariner outboards except those of Japanese origin...

      • Sierra 18-2945-9 Drain Screw Gasket (2Pk) Replaces 12-191833
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        $2.69
        $2.29

        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...

      • Sierra 18-2244 Drain Screw
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        $4.29
        $3.59

        Sierra 18-2244 Drain Screw for Mercury and MerCruiser This Sierra 18-2244 Drain Screw is for use with the following: MerCruiser I, R, MR, Alpha One, TR, TRS & all O/Bs with 3/8-16 non-magnetic gear...

      • Mercury - Mercruiser 23-8M0187255 Propeller Bore Sleeve
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        $6.99
        $6.49

        Mercury 23-8M0187255 Propeller Bore Sleeve The Mercury 23-8M0187255 Propeller Bore Sleeve is a genuine OEM replacement sleeve for select Mercury outboard propeller applications. This propeller bore...

      • Quicksilver 8M0082880 Drain Plug Seal
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        $5.39
        $4.49

        Quicksilver 8M0082880 Drain Plug Seal Quicksilver 8M0082880 Gear Case Seal Washer Kit is designed for select Mercury small horsepower outboards to help maintain proper gear case sealing during gear...

      • Sierra 18-2375 Drain Plug Magnet Replaces 22-8M0058389
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        $7.99
        $6.79

        Sierra 18-2375 Drain Plug Screw with Magnet for Mercruiser, Mercury, & Chrysler Sierra engine parts are designed to meet OEM Specifications. Fits MerCruiser I, R, MR, Alpha One, TR, and TRS engines...

      • Sierra 18-4698 Drain Fill Washer Replaces 27-81987
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        $2.69
        $2.29

        Sierra 18-4698 Yamaha & Mercury Drain Fill Washer Sierra high-quality engine parts are designed to meet OEM specifications. Use with 18-2374 Magnetic Drain Screw Interchangeable...

      • Mercury - Mercruiser 8M0204680 Seal
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        $3.99
        $3.49

        Mercury-MerCruiser 26-8M0204680 Gear Housing Seal The Mercury-MerCruiser 26-8M0204680 Gear Housing Seal is a genuine OEM replacement seal for select MerCruiser sterndrive applications. This seal is...

      • Sierra 18-2646-1 Lower Unit Seal Kit Replaces 26-816575A3
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        $68.89
        $49.59

        Sierra 18-2646-1 MerCruiser Alpha One Gen II Lower Unit Seal Kit Used On All MerCruiser Alpha I Gen II Lower Units 1991-Up Kit Includes: Sie-18-2599 Face Seal And Tool Sie-18-2564 Water...

      • Sierra 18-7116 O-Ring
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        $1.29
        $1.00

        Sierra 18-7116 O-Ring Replaces 25-62704 I.D.: 0.360" or 9.1mm Width: 0.100" or 2.5mm Interchangeable with: Chrysler/Force/US...

      • Sierra 18-2430-9 Gasket Drain Screw (Priced Per Pkg Of 5)
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        $20.79
        $16.19

        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...

      • Mercury 8M0215105 Flush Valve Plug
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        $13.79
        $11.49

        Mercury 8M0215105 Flush Valve Plug The Mercury 8M0215105 Flush Valve Plug is a genuine replacement plug designed to fit the flush valves on a range of Mercury and Mercury Racing FourStroke outboards...

      • SEI Mercury Outboard 3.0L Replacement Lower Unit 1.75, 20"
        $1,670.52
        $1,392.10

        Sterndrive Engineering Mercury Outboard 3.0L Replacement Lower Unit 1.75:1, 20" Driveshaft Note for purchasing: You must verify your Gear Ratio. Call for application assistance if needed, and have...

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      • Sierra 18-2654 Lower Unit Seal Kit Replaces 26-79831A1
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        $101.19
        $72.89

        Sierra 18-2654 Mercury Lower Unit Seal Kit Sierra high-quality replacement engine parts are designed to meet OEM specifications. Interchangeable...

      • Mercury - Mercruiser 26-8M0204670 Seal Image
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        $15.99
        $14.99

        Quicksilver 26-8M0204670 Seal Quicksilver 8M0204670 Bearing Carrier Seal is a genuine replacement seal designed for outboard and MerCruiser engine bearing carrier applications. It helps seal the...

      • Sierra 18-3751 Spanner Nut Replaces 8M2011027
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        $33.79
        $24.29

        Sierra 18-3751 Spanner Nut for Mercury & Mercruiser Engines For IA/IB/IC & EZ Shift, MC-I, R, MR, Alpha One, Gen II, Vazer, TRS, Bravo I & IX Interchangeable...

      • Mercury 895146 Mercruiser Washer Image
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        $2.99

        Mercury-MerCruiser 895146 Washer The Mercury-MerCruiser 895146 Washer is a genuine OEM replacement part for compatible Mercury and MerCruiser applications. This washer is designed to replace the...

      • Mercury - Mercruiser 23-8M0215006 Bushing
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        $11.99
        $10.99

        Mercury-MerCruiser 23-8M0215006 Bushing The Mercury-MerCruiser 23-8M0215006 Bushing is a genuine OEM replacement component for compatible Mercury and MerCruiser applications. This bushing is...

      • Mercury 38609 Mercruiser Plug Thumbnail Image
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        $15.99
        $14.49

        Mercury-MerCruiser 38609 Plug The Mercury-MerCruiser 38609 Plug is a genuine OEM replacement part for compatible Mercury and MerCruiser applications. This plug is designed to replace the original...

      Mercury OEM Engine Parts Finder

      Mercury Outboard Gearcase & Drive Parts

      Have you ever gone to a big box store with a marine department and had the feeling that the sales clerk had no idea what you needed? Or thought that automotive and marine parts are interchangeable? That will never be the case when you shop at Wholesale Marine. We have whatever you need from the best brands in OEM and aftermarket manufacturers like Mercury, Quicksilver, Moeller, and Sierra to get you your Mercury outboard gearcase parts you require - from gearcase seal kits, o-rings and seals, propeller shafts, carrier bearings, gear sets, gearcase bearings, even replacement lower units, if your boat needs it, Wholesale Marine will have it all!

      We know that it can sometimes be difficult to locate which Mercury outboard gearcase parts you require. Know that at Wholesale Marine, you have two options: you or your marine technician can use Wholesale Marine’s Parts Selection Finder, or you can call and have a conversation with one of our knowledgeable staff. Whichever option you use to find the right part(s) you need, your Mercury outboard gearcase components will soon be on their way to you!

      When you need to upgrade or replace Mercury outboard gearcase-related components it does not matter if you are buying o-rings and seals, gearcase bearings, propeller shafts, or an entire Mercury outboard lower unit replacement- you’ll always receive great customer service from our staff. In addition to carrying the best brands, we offer a competitive pricing guarantee. We ship daily so you’ll have your parts before you know it. Returns are easy as well. If you are not already a regular Wholesale Marine customer, we’ll do our best to convince you to become one! After all, thousands of boat owners and marine technicians already make us their one-stop shopping destination for all their boating needs! Plan to give us a call soon. We’re here Monday through Friday from 8:30 AM until 4:30 PM EST at (877) 388-2628. Don’t forget to ask about our Wholesale Rewards Program for extra savings the next time you shop at Wholesale Marine!