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      Product Listing

      • Sierra 18-2050 Oil Seal
        $16.99
        $11.99

        Sierra 18-2050 Mercury Oil Seal Sierra replacement oil seal for Mercury Outboards. O.D.: 1.253" Shaft Size: 1.000" Width: 0.125" Interchangeable with: Mallory 9-76112 Mercury Marine 26-55682

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      • Sierra 18-7115 O-Ring
        $2.49
        $1.99

        Sierra 18-7115 O-Ring Sierra replacement O-ring for marine engines. Width: 0.135" or 3.4mm I.D.: 1.735" or 44.1mm Package of 1 Interchangeable with: GLM 82240 Johnson/Evinrude Outboard 302588 Mercruiser Stern...

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      • Sierra 18-7155 O-Ring
        $2.99
        $1.99

        Sierra 18-7155 O-Ring I.D.: 1.620" or 41.1mm Width: 0.135" or 3.4mm Interchangeable with: Chrysler/Force/US Marine 25-26855 GLM 82230 Johnson/Evinrude Outboard 305270 Mallory 9-76541 Mercruiser Stern Drive 25-26855 Mercury Marine 25-26855

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      • Sierra 18-7160-9 O-Ring (Priced Per Pkg Of 5)
        $16.49
        $11.49

        Sierra 18-7160-9 O-Ring (Pkg Of 5) Sierra replacement O-ring for Mercury and Mercruiser engines. I.D.: 2.635" or 67mm Width: 0.210" or 5.3mm Package of 5 Interchangeable with: GLM 83340 Mallory 9-76545 Mercruiser Stern...

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      • Mercury - Mercruiser 17-8M0100263 Pin
        $3.99
        $3.49

        Mercury - Mercruiser 17-8M0100263 Pin  Genuine OEM Mercury-Mercruiser part. Replacement Cross Pin for Mercury Outboards. Special Order Item - Minimum Order Quantity 3. Supersedes: 17-30632  

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      • Mercury 8M0099218 4-Stroke Gearcase Assembly 1.921 20"
        $5,302.49
        $4,612.99

        Mercury 8M0099218 4-Stroke Gearcase Assembly 1.92:1 20" - 150 HP Genuine OEM Mercury part. 100% genuine OEM complete gear housing assembly for Mercury and Mariner 4-Stroke engines. Fits: Mercury 150 hp 4‑Cylinder, 4‑Stroke Outboards. (s/n 2B138363...

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      • Mercury 9148T82 V-6 Gear Housing Assembly 2:1 25"
        $3,723.99
        $3,239.99

        Mercury 9148T82 V-6 Gear Housing Assembly 2:1 25" Genuine OEM Mercury part. 100% genuine OEM complete gear housing assembly for Mercury and Mariner V-6 engines. Fits: Mercury 135‑200 (2.5L) V‑6 outboards Specifications: Color: Black Gear...

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      • SEI Mercury Outboard Replacement Lower Unit 2.07:1, 25"
        $1,670.52
        $1,392.10

        SEI Mercury Outboard Replacement Lower Unit 2.07:1, 25" 2 Stroke Driveshaft Note for purchasing: You must verify your Gear Ratio. Call for application assistance if needed, and have your engine serial number ready when calling. Replaces OE#...

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      • Sierra 18-1150 Needle Roller Bearing
        $70.99
        $49.49

        Sierra 18-1150 Mercruiser Needle Roller Bearing Sierra high-quality engine parts are designed to meet OEM specifications. Fits MC-I & R drives Interchangeable with: GLM 21600 Mercruiser Stern...

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      • Sierra 18-1550 Complete Gear Set-4 Cyl
        $1,189.99
        $832.99

        Complete Gear Set-4 cyl - Special Order est. 10 Days Contains: Reverse Gear 18-1560 Clutch 18-1562 Replaces Mallory 9-73420 9-73431 Mercury Marine 43-8812960A3 43-850036T 52-850048T

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      • Sierra 18-2357 Cross Pin
        $8.49
        $6.49

        Sierra 18-2357 Cross Pin for Mercury and Mercruiser Sierra replacement cross pin for Mercury Outboards and Mercruiser Stern Drives. Fits: I, MC-I, R, MR, Alpha One, Alpha One Gen II and Vazer Interchangeable...

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      • Sierra 18-7143-9 O-Ring (Priced Per Pkg Of 5)
        $10.49
        $7.99

        Sierra 18-7143-9 O-Ring (Priced Per Pkg Of 5) Sierra replacement O-ring. I.D.: 1.310" or 33.3mm Width: 0.100" or 2.5mm Package of 5 Interchangeable with: GLM 81250 Johnson/Evinrude Outboard 331188 Mallory 9-76537 Mercruiser...

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      • Sierra 18-7161-9 O-Ring (Pkg Of 5)
        $16.49
        $12.49

        Sierra 18-7161-9 O-Ring (Pkg Of 5) Sierra replacement O-ring for Mercruiser and Mercury engines. I.D.: 3.250" or 82.6mm Width: 0.070" or 1.8mm Package of 5 Interchangeable with: GLM 80420 Mallory 9-76546 Mercruiser Stern...

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      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 Captain’s Club Rewards program for extra savings the next time you shop at Wholesale Marine!