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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 Cooling System

      • Mercury 8M0168892 Thermostat
        $35.39
        $29.49

        Mercury - Mercruiser 8M0168892 Thermostat Genuine OEM Mercury-Mercruiser part. 120 Degrees F Applications: 40/50/60HP Four Stroke 1C050252 and Above Special Order Item

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      • Sierra 18-0835 Thermostat Gasket
        $5.49
        $3.99

        Sierra 18-0835 Thermostat Gasket Sierra thermostat gasket for Mercury and Yamaha Outboards. Interchangeable with: Mercury Marine 27-824853 27-8248531 27-8M0177107 Yamaha...

        Add to Cart
      • Sierra 18-2564-1 Impeller Gasket
        $15.99
        $10.99

        Sierra 18-2564-2 Impeller Gasket Sierra high-quality engine parts are designed to meet OEM specifications. For use on Chrysler/Force/US Marine, Honda Outboards, Mercruiser Stern Drives, and Mercury Marine engines. Interchangeable...

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      • Sierra 18-3425 Water Pump Kit
        $115.49
        $80.99

        Sierra 18-3425 Water Pump Kit Contains: (2) 18-0256 Bolt (1) 18-0292 Wear Plate to Pump Housing Gasket (1) 18-0294 Wear Plate to Pump Base Gasket (1) 18-3069 Impeller (1) 18-3435 Insert Cup (1) 18-3436 Wear Plate (1) 18-3297 Impeller...

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      • Mercury - Mercruiser 46-8M0113801 Water Pump Repair Kit
        $206.99
        $179.99

        Mercury - Mercruiser 46-8M0113801 Water Pump Repair Kit Genuine OEM Mercury-Mercruiser part. This water pump repair kit is for use with Mercury Outboards. Fits: 30 HP Carb 3 Cyl. - s/n 0T409000 thru 1B226999 40 HP Carb 3 Cyl. - s/n 0T409000 thru...

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      • Mercury 47-8M0137220 Impeller Kit
        $98.49
        $85.99

        Mercury 47-8M0137220 Impeller Kit Genuine OEM replacement Mercury 47-8M0137220 Impeller Kit. Includes O-ring, heavy-duty impeller, and inner wear plate. Fits: Mercury 4.5L (s/n 2A531162 and below) Mercury 6.2L MCM models (s/n 2A531196 and...

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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 - Mercruiser 8M0204712 Impeller
        $38.39
        $31.99

        Mercury - Mercruiser 8M0204712 Impeller Genuine OEM Mercury-Mercruiser part. Fits various 15 thru 25 hp outboards. Supersedes: 47-85089-10

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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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      • 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 18-2007 Oil Seal Replaces 26-94038
        $15.99
        $10.99

        Sierra 18-2007 Oil Seal Sierra high quality aftermarket parts are manufactured to meet or exceed OEM requirements. O.D.: 1.500" Shaft Size: 1.000" Width: 0.312" Interchangeable with: GLM 85600 Mallory 9-76103 Mercruiser Stern...

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      • Sierra 18-2919 Water Pump Gasket
        $0.96
        $0.86

        Sierra 18-2919 Water Pump Gasket Interchangeable with: GLM 31050 Mallory 9-60031 Mercruiser Stern Drive 27-426311 Mercury Marine 27-42631 27-426311

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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 18-3406 Mercury Upper Water Pump Repair Kit
        $101.49
        $70.99

        Sierra 18-3406 Mercury Upper Water Pump Repair Kit Sierra replacement upper water pump kit for Mercury Marine engines. Interchangeable with: Mercury Marine 46-8M0077246 817275A08 Kit Contains: Housing Bolt 18-2566-9 Impeller...

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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.