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Parts Selection Guide

Find the parts you need

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Prop Selection Guide

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Mercury Outboard Water Pumps & Impellers

Mercury Outboard Thermostats & Gaskets

Mariner Outboard Water Pumps & Impellers

      Mercury Outboard Cooling System

      • Sierra 18-3549 Thermostat Replaces 14586
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        Sierra 18-3549 Thermostat Replaces 14586

        $27.49
        $19.49

        Sierra 18-3549 Thermostat for Mercury Sierra replacement thermostat for Mercury Marine engines. Temperature Rating: 120°F Use with: 18-3569 Thermostat Kit 18-43052 Thermostat Kit Interchangeable...

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      • Sierra 18-3293 Impeller Key Replaces 28-8M0032833
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        Sierra 18-3293 Impeller Key Replaces 28-8M0032833

        $6.49
        $5.99

        Sierra 18-3293 Impeller Key Sierra high-quality engine parts are designed to meet OEM specifications.  Use with: 47-43026 series long vane impeller Fits MCM Alpha One Gen II & various O/B applications Interchangeable...

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      • Sierra 18-3062 Water Pump Impeller Replaces 47-42038Q02
        Quick view Out of stock

        Sierra 18-3062 Water Pump Impeller Replaces 47-42038Q02

        $19.99
        $13.99

        Sierra 18-3062 Water Pump Impeller Sierra high-quality engine parts are designed to meet OEM specifications. Fits 6-15 hp 2 cylcle outboards w/ standard gearcases (0A197112 & Up) Fits 8/9.9 4-Stroke outboards (2004 & prior) w/ standard...

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      • Sierra 18-5896 Temperature Sender Replaces 12415
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        Sierra 18-5896 Temperature Sender Replaces 12415

        $31.99
        $22.49

        Sierra 18-5896 Mercury Temperature Sender Sierra replacement engine parts are designed to meet OEM specifications.  Sender Code "D" Thread Size: 1/8" - 27 NPT Range: 240° Terminal Type: 10-32 stud Interchangeable...

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      • Sierra 18-7997 Air Filter
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        Sierra 18-7997 Air Filter

        $17.99
        $13.49

        Sierra 18-7997 Air Filter for Mercury DFI Outboards Sierra high-quality air filter designed for use on Mercury Marine and Mercury Sport Jet engines. Fits: V115 DFI (2.5L) (2000) V-135 DFI (2...

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      • Mercury - Mercruiser 47-42038Q02 Impeller
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        Quicksilver 47-42038Q02 Impeller

        $27.59
        $22.99

        Mercury - Mercruiser 47-42038Q02 Impeller Genuine OEM Mercury - Mercruiser part. Replacement impeller for Mercury Outboards. Supersedes: 47-42038-2  

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      • Sierra 18-3314 Water Pump Kit
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        Sierra 18-3314 Water Pump Kit

        $82.49
        $57.99

        Sierra 18-3314 Mercury Water Pump Kit Sierra engine parts are designed to meet OEM specifications. For use on Mercury Marine engines. Kit Includes: (1) 18-2801 Water Pump Gasket (1) 18-2826 Water Pump Base Gasket (1) 18-2914 Water Pump Gasket (1)...

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      • Sierra 18-3606 Thermostat Kit
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        Sierra 18-3606 Thermostat Kit

        $172.49
        $130.99

        Sierra 18-3606 Mercury Thermostat Kit Sierra high quality replacement engine parts are designed to meet OEM specifications. Temperature Rating: 130° F Kit Includes: (2) 18-3535 Thermostat (2) 18-3675 Thermostat Cover Gasket

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      • Mercury - Mercruiser 47-89981 Impeller
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        Quicksilver 47-89981 Impeller

        $27.59
        $22.99

        Mercury - Mercruiser 47-89981 Impeller Included in kit 47-89981T 2 Fits various outboards 3.9 to 9.8 (model 110) Replaces: GLM 89810 Mallory 9-45305 Sierra 18-3039

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      Mercury OEM Engine Parts Finder

      Mercury Outboard Cooling System

      Your Mercury outboard cooling system requires routine maintenance to perform optimally. Ignore this task, and you could find yourself literally stranded out at sea if your outboard overheats. Inconvenience and a possible expensive repair can be avoided by having your marine technician service your outboard on a regular schedule. It is not costly to keep your Mercury cooling system in top shape if you shop at Wholesale Marine. We carry both OEM Mercury outboard cooling system parts and quality aftermarket parts from Sierra.

      Whatever part your outboard cooling system requires, Wholesale Marine will not only have it in stock but at competitive prices. We ship daily, so your parts will be at your door before you know it. We have kits for water pump repairs, thermostats, water pumps, impellers, gaskets, hoses, seals, poppet valve kits, water pump housing, impeller keys, and more, We maintain a comprehensive array of parts in our inventory so you will not have to wait to take your boat back out on the water.

      Wholesale Marine stocks a huge selection of boat parts, including parts for your Mercury outboard cooling system that are in stock and ready to ship. No matter what you need to keep your boat up and running, we have it. Our expertise, selection, and top-tier customer service team will make you a customer for life. Have a question about which Mercury cooling system part your outboard requires? You can look it up for yourself using our convenient and easy to use Parts Finder at the top of this page. Or, if you’d prefer, you can call us Monday through Friday from 8:30 AM to 4:30 PM EST. Make sure you inquire about our Captain’s Loyalty program for discounts every time you shop at Wholesale Marine.