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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

      • Mercury-Mercruiser 8M0139434 Thermostat 125°
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        Quicksilver 8M0139434 Thermostat 125°

        $34.19
        $28.49

        Mercury-Mercruiser 8M0139434 Thermostat 125° 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 18-3325 Water Pump Kit Replaces 0389133
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        Sierra 18-3325 Water Pump Kit Replaces 0389133

        $126.99
        $88.99

        Sierra 18-3325 Mercury Water Pump Kit w/ Housing Sierra high-quality engine parts are designed to meet OEM specifications. For Johnson - Evinrude (OMC) Outboard Engines. Kit Includes: (1) 18-2705 Oil Seal (1) 18-3083 Impeller (1) 18-3108 Impeller...

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      • Sierra 18-3571 Water Pump Kit
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        Sierra 18-3571 Water Pump Kit

        $91.99
        $64.49

        Sierra 18-3571 Water Pump Kit for Mercury, Mercruiser Sierra high-quality engine parts are designed to meet OEM specifications. Kit Includes: (1) 18-7420 O-Ring (1) 18-2566 Impeller Gasket (1) 18-2564 Impeller Gasket (1) 18-2599 Face Seal and...

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      • EMP 46-00091 Mercury MerCruiser Impeller Service Kit
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        EMP 46-00091 Mercury MerCruiser Impeller Service Kit

        $41.27
        $34.39

        EMP 46-00091 Mercury MerCruiser Impeller Service Kit This impeller service kit is intended for use on Mercury and MerCruiser engines and meets all OEM requirements. Impeller Service Kit Application: For 1999-2006 Mercury Mariner V6 135-225HP...

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      • EMP 47-00001 Mercury MerCruiser Impeller
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        EMP 47-00001 Mercury MerCruiser Impeller

        $20.05
        $16.71

        EMP 47-00001 Mercury MerCruiser Impeller This impeller is intended for use on Mercury, MerCruiser, and Force engines and meets all OEM requirements. Specification: ID: 22.3mm OD: 60mm W: 33.8mm 6 Blades Uses Key 28-23834 Impeller...

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      • Mercury - Mercruiser 14586A-6 Thermostat Kit
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        Mercury - Mercruiser 14586A-6 Thermostat Kit

        $58.49
        $50.99

        Mercury - Mercruiser 14586A-6 Thermostat Kit Includes 120 degree thermostat, gaskets, and poppet value Fits various Mercury/Mariner 50/55/60 hp. 2 cycle outboards. See application chart for specific engine models.

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      • Mercury - Mercruiser 47-F436065-2 Impeller
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        Mercury - Mercruiser 47-F436065-2 Impeller

        $27.99
        $24.49

        Mercury - Mercruiser 47-F436065-2 Impeller Genuine OEM Mercury-Mercruiser part. Application: 9.9 H.P. (1997) - [0E203000 Through 0E287999] 15 H.P. (1996) - [0E127700 Through 0E202999] 15 H.P. (1997) - [0E203000 Through 0E287999] 9.9 H.P. (1996) -...

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      • Mercury 8M0155395 Water Impeller Repair Kit
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        Quicksilver 8M0155395 Water Impeller Repair Kit

        $58.79
        $48.99

        Mercury 8M0155395 Water Impeller Repair Kit Genuine OEM Mercury - Mercruiser part. Water impeller repair kit for Mercury Outboards. Application: 4 HP Carb - s/n 0R411838 & up 5 HP Carb - s/n 0R411838 & up 6 HP Carb - s/n 0R411838 &...

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      • Sierra 18-1730 Coupling
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        Sierra 18-1730 Coupling

        $32.99
        $26.49

        Sierra 18-1730 Coupling Sierra replacement coupling. Sierra aftermarket engine parts are manufactured to meet or exceed OEM requirements. Interchangeable with: Chrysler/Force/US Marine 43585 Mercruiser Stern Drive 43585 Mercury...

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      • Sierra 18-2565-9 Impeller Gasket (Priced Per Pkg Of 2)
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        Sierra 18-2565-9 Impeller Gasket (Pkg Of 2)

        $17.99
        $13.99

        Sierra 18-2565-9 Impeller Gasket (Pkg Of 2) Sierra replacement impeller gasket for Mercury and Honda Outboards. Package of 2 Interchangeable with: GLM 30320 Honda Outboard 19242-ZW1-003 Mallory 9-60022 Mercury...

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      • Sierra 18-3063 Impeller
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        Sierra 18-3063 Impeller

        $35.49
        $24.99

        Sierra 18-3063 Impeller Sierra replacement impellers are manufactured to meet or exceed OEM requirements. Interchangeable with: Mallory 9-45608 Mercury Marine 47-81242M 47-95611M Yamaha Outboard 662-44352-01-00

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      • Sierra 18-3424 Water Pump Base
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        Sierra 18-3424 Water Pump Base

        $43.99
        $33.49

        Sierra 18-3424 Water Pump Base Sierra replacement water pump base for Mercury Marine engines. Interchangeable with: GLM 12030 Mallory 9-43300 Mercury Marine 46-77177A1

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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.