Mercury Outboard Water Pumps & Impellers

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Parts Selection Guide

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Prop Selection Guide

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      • Mercury - Mercruiser 8M0078858 Water Pump Kit
        $232.19
        $193.49

        Mercury - Mercruiser 8M0078858 Water Pump Kit Genuine OEM Mercury-Mercruiser part. Complete water pump repair kit for Mercury Verado outboards. Kit Includes: water impeller, upper and lower housings, face plate, gaskets, drive key, face seal and water...

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      • Mercury - Mercruiser 46-8M0113799 Water Pump Repair Kit
        $215.99
        $179.99

        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 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 - 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 18-3012 Water Pump Impeller Replaces 47-22748
        $29.49
        $20.99

        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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      • 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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      • 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 18-8920 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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      • 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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      • 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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      • 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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      • 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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      • 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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      Mercury OEM Engine Parts Finder

      Mercury Water Pumps and Impellers for Sale

      Functional Mercury water pumps contain impellers that work by pumping cool water through your engine to reduce friction and wear and tear for longer engine life. It should go without saying, well maintained working parts remain working optimally, and your engine will run well and last longer. That’s why Wholesale Marine always recommends Original Equipment Manufacturers (OEM) parts such as Mercury water pumps with replacement Mercury outboard impeller kits to ensure a long lifespan for your boat’s engine.

      We have an extensive selection of full Mercury outboard water pump kits, as well as the replacement parts that go with them. Try finding your part number to locate the appropriate replacement if it’s still visible, depending on its age. If the part number is worn away, see if you can measure your Mercury impeller to narrow down the possibilities. You may not even have to replace the entire pump! Check to see if your impeller is functional first because that is often the culprit. If that’s the case, we also carry replacement Mercury impellers for just about any marine engine.

      If you're unsure which Mercury outboard water pump kit or Mercury impeller you need, give our Parts Selector at the top of the page a try. Our parts selector lets you find the appropriate kits for Mercury water pumps or Mercury impellers by serial number and model. This search tool will also allow you to see both aftermarket and OEM parts that are available for your engine.

      Need additional assistance? Go ahead and reach out to one of Wholesale Marine’s dedicated customer service representatives. Our team of boating enthusiasts will gladly assist you, so just give us a call at (877) 388-2628 between the hours of 9:00 AM and 6:00 PM EST Monday through Friday. And, if you do not already know, Wholesale Marine has a great Captain’s Club Rewards Program for our loyal customers, too!

      FAQs

      How do I know when to replace my Mercury impeller or water pump?

      Signs that your Mercury impeller or Mercury water pump needs replacement include overheating, reduced water flow from the outboard’s cooling system, engine alarms, or a rough-running motor. If you notice steam instead of a steady water stream from the telltale outlet, it's time to inspect and replace these components to avoid engine damage.

      How do I find the right Mercury outboard water pump kit for my engine?

      The easiest way to find the right Mercury water pump kit or Mercury impeller is to check your engine’s serial number and model. Use our Parts Selector tool to match your Mercury outboard with the correct replacement parts. If your part number is worn away, measuring the impeller’s dimensions can also help determine the correct replacement.

      What are the benefits of using OEM Mercury water pumps and impellers over aftermarket parts?

      OEM Mercury water pumps and OEM Mercury impellers are designed specifically for Mercury outboards, ensuring proper fit, durability, and performance. While some aftermarket parts may work, OEM components provide the highest reliability, reducing the risk of overheating, premature wear, or improper fitment. Using genuine Mercury replacement parts helps extend engine life and maintain peak efficiency.