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guidebook

Parts Selection Guide

Find the parts you need

Clear
  • 1) Engine Manufacturer:
  • 2) Part Type:
  • 3) Select Model:

Prop Selection Guide

Find the right prop for your boat

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  • Engine Manufacturer:
  • Engine Horsepower:
  • Engine Model:
  • Engine Year:
  • Prop Pitch:

      Mercury Outboard Water Pumps & Impellers

      • Sierra 18-3118 Water Pump Housing
        $23.99
        $18.49

        Sierra 18-3118 Mercury Water Pump Housing Sierra water pump housing for Mercury Marine engines. Interchangeable with: GLM 12420 Mallory 9-43202 Mercury Marine 46-48746A1 46-48746A3 46-77822A1  

        Add to Cart
      • Sierra 18-3423 Water Pump Base
        $43.99
        $30.99

        Sierra 18-3423 Water Pump Base Sierra replacement water pump base for Mercury Marine engines. Interchangeable with: GLM 12020 Mallory 9-15057 9-43301 Mercury Marine 46-73640A1 46-73640T01

        Add to Cart
      • Sierra 18-3690 Water Pump Repair Kit - Mercury
        $175.49
        $141.99

        Sierra 18-3690 Water Pump Repair Kit - Mercury The Mercury Carburetor Repair Kit contains all necessary components to rebuild water pump assembly.  Application:  Mercury 30-50 HP various serial ranges Meets Or Exceeds OEM Specifications

        Add to Cart
      • Sierra 18-3691 Water Pump Kit - Mercury
        $118.49
        $95.99

        Sierra 18-3691 Water Pump Kit - Mercury The Mercury Carburetor Repair Kit contains all necessary components to rebuild water pump assembly.  Application:  Mercury 65-115HP Outboard Serial No. 2B095049 and up Meets Or Exceeds OEM...

        Add to Cart

      Mercury OEM Engine Parts Finder

      Mercury Outboard Water Pumps and Impellers

      Functional 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 outboard water pumps with replacement Mercury outboard impellers to ensure a long lifespan for your boat’s engine.

      We have an extensive selection of full Mercury outboard water pumps, as well as the replacement parts and kits 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 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 outboard impellers for just about any marine engine.

      If you're unsure which water pump kit or Mercury outboard impellers 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 outboard 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!