Mercury Outboard Water Pumps & Impellers

8243
guidebook

Parts Selection Guide

Find the parts you need

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

Prop Selection Guide

Find the right prop for your boat

Clear
  • Engine Manufacturer:
  • Engine Horsepower:
  • Engine Model:
  • Engine Year:
  • Prop Pitch:
      • Mercury - Mercruiser 47-F462065 Impeller
        $61.49
        $53.49

        Mercury - Mercruiser 47-F462065 Impeller Genuine OEM Mercury-Mercruiser part. Application: 35 H.P. (1987) - [357Y7A & Up] 35 H.P. (1987) - [357Y7B & Up] 35 H.P. (1987) - [357F7A & Up] 35 H.P. (1986) - [357FC6A & Up] 35 H.P...

        Add to Cart
      • Mercury 4.6L/5.7L Water Pump Impeller 8M0200115
        $55.79
        $46.49

        Mercury 4.6L/5.7L Water Pump Impeller 8M0200115 This OEM water pump impeller is a direct replacement for 4.6L & 5.7L Mercury Outboard cooling systems. This impeller kit can be used with various Verado, Racing, and SeaPro outboard models...

        Add to Cart
      • 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 Water Pump Repair Kit 18-3688
        $145.99
        $109.49

        Sierra Water Pump Repair Kit 18-3688 Application: Mercury 75-115HP serial 1B366823-2B094995 Interchangeable with: Mercury Marine 8M0113799 Kit Includes: Water Pump Housing (1) Cover Assembly (1) Short Seal 1 3/4" (1) Seal...

        Add to Cart

      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.