Mercury Outboard Cooling System

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Parts Selection Guide

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      • Mercury - Mercruiser 27-802699002 Gasket
        $10.79
        $8.99

        Mercury - Mercruiser 27-802699002 Gasket Genuine OEM Mercury-Mercruiser part. Fits: 8 HP Carb (209cc) - [0R042475 & Up] 8 HP Carb (209cc) - [0P325500 & Up] 9.9 HP Carb (209cc) - [0R042475 & Up] 9.9 HP Carb (209cc) - [0R042475 &...

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      • Mercury - Mercruiser 46-8M0113799 Water Pump Repair Kit
        $205.79
        $171.49

        Mercury - Mercruiser 46-8M0113799 Water Pump Repair Kit Genuine OEM Mercury-Mercruiser replacement water pump repair kit for Mercury outboards. Fits: 75 HP EFI s/n 1B366823 thru 2B094995 80 HP EFI s/n 1B366823 thru 2B094995 90 HP EFI s/n 1B366823...

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      • Sierra 18-3116 Water Pump Housing Replaces 46-96148T1
        $48.49
        $33.99

        Sierra 18-3116 Water Pump Housing for Mercury, Mercruiser Sierra high-quality replacement engine parts are designed to meet OEM specifications.  For use with 18-3109 Water Tube Guide and 18-3110 Water Pump Housing Brushing Interchangeable...

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      • Mercury - Mercruiser 803061T-1 Thermostat Kit
        $33.49
        $28.99

        Mercury - Mercruiser 803061T-1 Thermostat Kit Includes 120 degree thermostat, thermostat gasket, washer and cover gasket Fits various Mercury/Mariner 70-125 hp. 2 cycle outboards (1987 and Newer) See application chart for specific engine models.

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      • Sierra 18-3012 Water Pump Impeller Replaces 47-22748
        $28.99
        $20.49

        Sierra 18-3012 Mercury Water Pump Impeller Sierra high-quality engine parts are designed to meet OEM specifications. Interchangeable with: GLM 89600 Mallory 9-45308 Mercury Marine 47-22748 Application: Mercury Marine Model:...

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      • Mercury - Mercruiser 8M0208905 Water Pump Repair Kit
        $92.39
        $76.99

        Mercury - Mercruiser 8M0208905 Water Pump Repair Kit Genuine OEM Mercury-Mercruiser part. Water pump repair kit for Mercury F25/30 EFI FourStroke outboards. Fits: 25 HP Carb SeaPro - s/n 0R051710 & up 25 HP EFI 3 Cyl - s/n 0R106999 tjhru...

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      • Sierra 18-3323 Water Pump Kit
        $108.49
        $75.99

        Sierra Water Pump Kit Special Order Item est. 10 Days For Use on Mercury/Mariner Outboard Engines Replaces:  46-73640A2 Kit Contains: Impeller - #18-3007 (O.E. #47-89983) Upper Pump Housing - #18-3118 (O.E. #46-46-77822A1) Water Pump Base - #18-3423...

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      • Sierra 18-3675 Thermostat Cover Gasket
        $3.99
        $2.99

        Sierra 18-3675 Thermostat Cover Gasket Sierra replacement thermostat cover gasket for Mercury Marine engines. For: 200-250 Hp 3.0L, (DFI and EFI) Interchangeable with: Mercury Marine 27-850318 27-8503181 Mercury Sport...

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      • Quicksilver 47-8M0214912  Water Pump Impeller
        $33.59
        $27.99

        Quicksilver 47-8M0214912 Water Pump Impeller Quicksilver replacement water pump impeller for Mercury Outboards. Designed to meet OEM specifications. Refer to your engine's user manual for installation instructions and replacement schedule...

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      • Sierra 18-0345 Water Pump Gasket
        $6.99
        $4.99

        Sierra 18-0345 Water Pump Gasket Sierra replacement water pump gasket for Mercury Marine, Chrysler/Force/US Marine engines. For Mercury 25-60 HP Outboards 2, 3 cyl & 4-Stroke models Interchangeable with: Chrysler/Force/US...

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      • Mercury 47-8M0205803 Water Pump Repair Kit
        $57.59
        $47.99

        Mercury 47-8M0205803 Water Pump Repair Kit Genuine OEM Mercury-Mercruiser part. Application: 175 - 300HP V6 3.4L & V8 4.6L Contains: Water Pump Gasket Face Plate Face Plate Gasket Key Impeller Face Seal Drain Plug Seal Water Pump...

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

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      • Sierra 18-3631 Thermostat With Housing
        $180.49
        $126.49

        Sierra 18-3631 Thermostat With Housing Sierra replacement thermostat for Mercury Marine engines. Includes thermostat and housing. Fits: 135-300 Verado Temperature Rating: 144°F Interchangeable with: Mercury Marine 892864T04

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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.