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      Mercury Outboard Internal Engine Parts Product Listings

      • Sierra 18-2611 Inner Exhaust Plate Gasket
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        $71.99
        $51.89

        Inner Exhaust Plate Gasket - Special Order est. 10 Days

      • Sierra 18-2806-9 Cylinder Cover Gasket (Priced Per Pkg Of 2)
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        $29.09
        $20.99

        Sierra 18-2806-9 Cylinder Cover Gasket (Priced Per Pkg Of 2) Sierra high-quality engine parts are designed to meet OEM specifications. Interchangeable with: GLM 30680 Mercury...

      • Sierra 18-2835-9 Powerhead Base Gasket (Pkg Of 2)
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        $16.99
        $11.99

        Sierra 18-2835-9 Powerhead Base Gasket (Pkg Of 2) Sierra replacement powerhead base gasket for Mercury Outboards. Fits: Mercury 75-90-115-140 Hp Package of 2 Interchangeable...

      • Sierra 18-2839-9 Exhaust Cover Gasket (Priced Per Pkg Of 2)
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        $28.49
        $20.49

        Sierra 18-2839-9 Exhaust Cover Gasket (Priced Per Pkg Of 2) Sierra high-quality engine parts are designed to meet OEM specifications. For use on Mercury Marine engines. Interchangeable...

      • Sierra 18-3828 Head Gasket
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        $27.69
        $21.59

        Sierra 18-3828 Head Gasket For Model 9.9C (S/N code 682) & Model 15C (S/N code 684) Interchangeable with: GLM 33890 Mallory 9-63962 Mercury Marine 27-18937M 27-18937 27-83899M 27-98990M Yamaha...

      • Sierra 18-3844 Head Gasket
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        $42.29
        $30.49

        Head Gasket - Special Order est. 10 Days

      • Sierra 18-3911 Piston Rings
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        $15.09
        $11.79

        Sierra 18-3911 Piston Rings Sierra replacement piston rings for Johnson/Evinrude Outboards. Bore Size: 3.020 .020 O.S. Interchangeable with: GLM 24260 Johnson/Evinrude...

      • Sierra 18-4018 Piston Kit
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        $66.69
        $47.99

        Sierra 18-4018 Piston Kit Sierra replacement piston kit for Mercury Marine Outboards. Bore Size: 2.985 / .030 O.S. Interchangeable with: Mallory 9-53210 Mercury...

      • Sierra 18-4019 Piston Rings
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        $83.89
        $60.39

        Sierra 18-4019 Mercury Piston Rings Sierra replacement piston rings for Mercury Marine engines. Bore Size: 2.875 Standard Interchangeable with: Mercury (3) of Sierra 18-4019 = (1)...

      • CLEARANCE
        Sierra 18-4037 Needle Bearing
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        $0.18
        $0.12

        Sierra Needle Bearings Special Order est. 10 Days For Use on Mercury/Mariner Engines Replaces:  29-71422 Description:  Main Bearing Priced Per Piece

      • Sierra 18-4638 Piston Kit
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        $80.79
        $62.99

        Piston Kit - Special Order est. 10 Days

      • Sierra 18-7156-9 O-Ring (Pkg Of 5)
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        $17.49
        $14.89

        Sierra 18-7156-9 O-Ring (Pkg Of 5) Sierra replacement O-ring for Mercury, Mercruiser, Johnson/Evinrude, and OMC engines. Supersedes 18-7156 I.D.: 1.185" or 30.1mm Width: 0.100" or 2...

      • CLEARANCE
        Sierra 18-7414 O-Ring
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        $0.28
        $0.19

        Sierra 18-7414 O-Ring I.D.: 1.989" or 50.5mm Width: 0.070" or 1.8mm Interchangeable with: GLM 80330 Mercury Marine 25-62384 25-64067 25-823683 Mercury Sport Jet 25-823683

      Mercury OEM Engine Parts Finder

      Mercury Outboard Internal Engine Parts

      When your outboard engine is being overhauled or repaired, all you can think about is the cost. That should not be a major headache 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 the Mercury outboard internal engine parts your outboard needs - from powerhead gasket kits, crankshaft seals, head gaskets, seals and o-rings, pistons for every model sold singly or in kits, main bearings and more. Whatever your outboard engine or your boat requires, Wholesale Marine will have it in stock at competitive prices, and ready to be sent directly to you!

      With so many models and different types of components, it can be difficult to locate which Mercury outboard internal engine parts your engine needs. However, at Wholesale Marine, you have two ways to find what you need: you or your marine technician can use Wholesale Marine’s Parts Selection Finder, or you can call and have a call with one of our knowledgeable staff. Whichever option you use to find the right part(s) you need, your Mercury outboard internal engine partswill be on your doorstep before you know it!

      When you need to upgrade or replace your Mercury outboard internal engine parts,it does not matter if you are buying outboard gaskets, crankshaft seals, or a new set of pistons and rings- it is our pleasure to serve and so you’ll always receive great customer service from our staff. In addition to carrying the best brands, our competitive pricing guarantee means you can shop with complete peace of mind. We ship daily so you’ll have your parts before you know it.

      Returns are easy as well. Wholesale Marine stands by what we sell. If you are not happy with your purchase, just return it, no questions asked. You see, 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!