Mercury Outboard Cooling System

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Parts Selection Guide

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Prop Selection Guide

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      • Sierra 18-3605 Thermostat Kit
        $105.99
        $74.49

        Sierra 18-3605 Mercury Thermostat Kit This Mercury Thermostat kit is designed for use on 225/250 HP EFI G129222-0T408999 For Use on Mercury/Mariner Outboard Engines Fits:  V-135 DFI (2.5L)(1998 & Up), V-150 DFI (2.5L)(1998 & Up), V-175...

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      • EMP 46-46501 Mercury MerCruiser Water Pump Kit
        $70.07
        $58.39

        EMP 46-46501 Mercury MerCruiser Water Pump Kit This EMP replacement water pump kit is for use with Mercury and MerCruiser engines. This boat water pump kit comes with a rubber coated wear plate, stainless steel housing, impeller, and various hardware...

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      • Sierra 18-8920 Impeller
        $25.49
        $17.99

        Sierra 18-8920 Impeller Fits: 8 (8B models), 9.8 (9.8B model), 8 4-stroke (All), 9.8 4-stroke (All) Interchangeable with: Mallory 9-45401 Mercury Marine 47-8037481 Nissan/Tohatsu Outboard 3B2-65021-1 3B2650211M

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      • Mercury Mercruiser 28-8M0032834 Impeller Key
        $3.99
        $3.49

        Mercury Mercruiser 28-8M0214992 Impeller Key Use with 47-89984 series short vane impeller Fits MCM I/R/MR/Alpha One  Supersedes 28-8M0032834 Applications: 200XS DFI (2.5L) ROS - (1E050852 & Up) 200XS SST - (1E050629 &...

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      • Mercury - Mercruiser 47-8M0214944 Impeller
        $33.59
        $27.99

        Mercury - Mercruiser 47-8M0214944 Impeller Genuine OEM Mercury-Mercruiser part. Fits: 9.9HP FourStroke (BigFoot gearcase) beginning with model year 2005 Supersedes: 47-803748

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      • Sierra 18-0970 Fuel Pump Base Gasket
        $0.58
        $0.44

        Sierra 18-0970 Fuel Pump Base Gasket Sierra replacement fuel pump base gasket for use on Chrysler/Force/US Marine, Mercury Marine, and Mercury Sport Jet engines. Interchangeable with: Chrysler/Force/US...

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      • EMP 46-00090 Mercury MerCruiser Water Pump Kit with Housing
        $47.99
        $39.99

        EMP 46-00090 Mercury MerCruiser Water Pump Kit with Housing This EMP replacement water pump kit is for use with Mercury and MerCruiser engines. Water Pump Application Information: For MerCruiser MC1 & R/MR/Alpha One engines For Mercury Mariner V6...

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      • Mercury - Mercruiser 47-8M0135803 Impeller
        $27.49
        $23.99

        Mercury - Mercruiser 47-8M0135803 Impeller Genuine OEM Mercury-Mercruiser part. Application: 15HP EFI Four Stroke 0R833820 and Above 20HP EFI Four Stroke 0R833820 and Above Special Order Item

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      • Sierra 18-0563 Water Tube Rubber Seal
        $1.99
        $1.49

        Sierra 18-0563 Water Tube Rubber Seal Sierra replacement water tube rubber seal for Mercruiser Stern Drives, Mercury, and Mercury Race engines. Interchangeable with: GLM 85200 Mercruiser Stern Drive 26-36556 Mercury...

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      • EMP 26-01800-B Mercury MerCruiser Water Pump Kit
        $57.59
        $47.99

        EMP 26-01800-B Mercury MerCruiser Water Pump Kit This complete water pump kit is intended for use on Mercury & MerCruiser engines and meets all OEM requirements. Complete Water Pump & Seal Kit Application: For Mercury Mariner 1988-2006 V6...

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      • EMP 75-00456 Mercury / BRP Thermostat Kit
        $23.03
        $19.19

        EMP 75-00456 Mercury / BRP Thermostat Kit This Thermostat Kit is intended for use on Mercury and BRP outboard engines and meets all OEM requirements. Thermostat Kit Application: For Mercury Mariner 1975-1979 V6 135-200 HP Outboards For...

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      • Mercury 8M0137849 Water Pump Kit
        $58.49
        $50.99

        Mercury 8M0137849 Water Pump Kit - Chrome Genuine OEM Mercury-Mercruiser part. The heavy duty face plate and housing are designed to improve life in highly abrasive water conditions. Applications: 15/20 HP EFI 4 Stroke 0R8338250 and Above Special...

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      • Mercury 47-43026Q02 Water Pump Impeller
        $35.99
        $29.99

        Mercury - Mercruiser 47-43026Q02 Water Pump Impeller Genuine OEM Mercury-Mercruiser part. Replacement water pump impeller for Mercury Outboards.

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      • Sierra 18-0339 Thermostat Gasket
        $6.99
        $5.49

        Sierra 18-0339 Thermostat Gasket Sierra replacement thermostat gasket for Mercury Marine engines. GLM 32820 Mallory 9-60004 Mercury Marine 27-43006 2 27-430068 27-430067 27-430066 27-430065 27-430063 27-430061

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      • Sierra 18-3066 Impeller
        $29.99
        $20.99

        Sierra 18-3066 Impeller Sierra replacement impeller for Mercury Marine engines and Yamaha Outboards. Use with: 18-3460 Water Pump Kit Interchangeable with: GLM 89870 Mallory 9-45610 Mercury Marine 47-11590M Yamaha...

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      • Sierra 18-3633 Mercury Thermostat
        $78.99
        $63.99

        Sierra 18-3633 Mercury Thermostat - Replaces 8M0090819 Sierra replacement thermostat for Mercury Outboards. Fits: 75-115HP, 115 Pro XS (2B094996 & UP) Interchangeable with: Mercury Marine 8M0090819

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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 Club Rewards Program for discounts every time you shop at Wholesale Marine.