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  • Engine
  • Drivetrain
  • Underwater Hardware
  • Maintenance
  • Accessories
  • Clothing, Hats, and Gifts

    • Shop by Brand

  • View all Brands

    • Flush Kits

    Properly flushing your motor after every outing helps to extend the service life or your engine and protect it from corrosion over time. At Discount Inboard Marine, we stock the best inboard motor flush kits and marine engine flushers to help you get the job done right. Be sure to follow the manufacturer's recommended instructions for conducting a proper inboard motor flush. And ensure you're keeping your boat in tip-top condition through the use of our maintenance supplies. We stock everything boaters need to keep their craft ready for the next cast-off. Have a question or need additional information about our marine engine flush kits? Reach out today.

    • Perko Engine Flush Kit For 1-1/4" Hose Perko Engine Flush Kit For 1-1/4" Hose
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      Perko Engine Flush Kit For 1-1/4" Hose

      Simply hook your garden hose to the inlet fitting turn on the water and start your engine. Perko Flush Pro Includes: 1-1/4" Flush Pro Valve, Water Inlet Fitting, 7 ft of hose, hose fitting and clamps. PCM GM, Indmar (Ford & GM), Mercruiser...
      $209.13
      Add to Cart
    • Perko Engine Flush Kit For 1" Hose Perko Engine Flush Kit For 1" Hose
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      Perko Engine Flush Kit For 1" Hose

      Simply hook your garden hose to the inlet fitting turn on the water and start your engine Perko Flush Pro kit Includes 1" Flush Pro Valve, Water Inlet Fitting, 7 feet of hose, hose fittings, and clamps. PCM FORD Engines. An excellent value compared to...
      $209.13
      Add to Cart
    • Flush Pro 1.25" Boat Flusher
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      Flush Pro 1.25" Boat Flusher

      * Most GM Engines, PCM, Indmar, Mercruiser, Some 2002 up PCM GM engines in Correct Crafts used 1" hose prior to the sea strainer * Indmar Ford Engines, 87 up MasterCraft * Click on picture for more details * Read instructions carefully *Tech Tip* If...
      $118.47
      Add to Cart
    • 1" Flush Pro Marine Engine Flusher
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      1" Flush Pro Marine Engine Flusher

      * PCM FORD Engines, Some 2002 up PCM GM Engines in Correct Crafts used 1" hose prior to the sea strainer. * Click on picture for more details * Read instructions carefully *Tech Tip* If you are going to suck antifreeze from a bucket by using a...
      $124.70
      Add to Cart
    • FAKE-A-LAKE
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      FAKE-A-LAKE

      Whether you need to flush, tune-up or winterize your inboard engine, you can easily run your boat engine at home and out of the water with the Fake-A-Lake.  Genuine "Fake-A-Lake" Inboard Flusher (the USA made original!) Constructed of...
      $65.00
      Add to Cart
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