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Parts Selection Guide

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Prop Selection Guide

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      Mercury Outboard Cooling System

      • Sierra 18-3017 Water Pump Impeller Replaces 47-89984T3
        $22.99
        $15.99

        Sierra 18-3017 Water Pump Impeller for Mercury Sierra replacement water pump impeller for Mercury and Mercruiser engines. This impeller fits MCM and outboard applications. All Sierra engine parts are manufactured to meet or exceed OEM requirements...

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      • Sierra 18-3056 Water Pump Impeller Replaces 47-43026T2
        $24.99
        $17.49

        Sierra 18-3056 Water Pump Impeller Sierra high-quality engine parts are designed to meet OEM specifications. For Alpha I-Generation 2 s/n D494569 & above Mercruiser Vazer For 30/40/45/50/60 4-stroke Bigfoot, 60 (3 cyl.) Bigfoot, 75-125 (all 3...

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      • Sierra 18-3553 Thermostat Replaces 75692
        $25.99
        $19.99

        Sierra 18-3553 Mercury Thermostat The Sierra 18-3553 Thermostat has a 143°F temperature rating. For use on Mercury Marine engines. Interchangeable with: GLM 13010 Mallory 9-43019 Mercury...

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      • Sierra 18-3057 Water Pump Impeller Replaces 0508441
        $22.99
        $15.99

        Sierra 18-3057 Water Pump Impeller for Mercury Sierra high-quality engine parts are designed to meet OEM specifications. For use on Chrysler/Force/US Marine, Mercury Marine, and Sears engines. Fits various 15 thru 25 HP outboards Interchangeable...

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      • Sierra 18-3239 Impeller Repair Kit
        $22.99
        $15.99

        Sierra 18-3239 Water Pump Repair Kit for Mercury, Mariner Sierra high-quality engine parts are designed to meet OEM specifications. For small gear case engines under 9.9 hp. Kit Includes: (1) 18-3039 Impeller (1) 18-3139 Impeller Plate (1) 18-7409...

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      • Sierra 18-3007 Water Pump Impeller Replaces 47-89983T
        $20.99
        $14.99

        Sierra 18-3007 Water Pump Impeller Sierra high-quality engine parts are designed to meet OEM specifications. Fits various 30-70 HP outboards. Interchangeable with: GLM 89830 Mallory 9-45300 Mercruiser Stern Drive 47-20268 Mercury...

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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
        $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
        $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 18-7997 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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      • Sierra 18-3098 Impeller Replaces 47-161543
        $24.49
        $16.99

        Sierra 18-3098 Mercury Outboard Water Pump Impeller Sierra high-quality replacement water pump impeller for Mercury Marine engines. Fits Mercury/Mariner shiftable 3.3hp 1993 & up, 4/5hp 2-cycle 1987 & up, 4/5/6hp 4-stroke 1999 &...

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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.