Cooling Systems

Protect your inboard engine and keep it running cool with high-quality boat cooling system parts from WaterSkis.com. Whether you're replacing a raw water pump, upgrading a water hose, or servicing a complete water cooling system, we have the parts you need for Mastercraft, Supra, and Moomba boats.

Our selection includes OEM and trusted aftermarket components like impellers, thermostats, circulating pumps, and raw water pump kits—all essential for keeping your engine from overheating while pulling skiers, wakeboarders, or surfers. Not sure what fits your boat? Use our Boat Part Lookup Tool to match the correct parts to your model by year and brand.

With performance-driven options built for durability and compatibility, WaterSkis.com helps you tackle repairs with confidence and get back on the water faster—right where you belong.

Filters
  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Indmar Circulating Water Pump GM LT1 Engines Circulating Water Pump GM LT1 Engines
    Quick view

    Circulating Water Pump GM LT1 Engines

    $299.99
    Indmar MasterCraft LT-1 Circulating Water Pump Water circulating pump for Indmar Corvette LT1 marine engines used in MasterCraft boat. Fits Indmar LT-1 engines used in MasterCraft boats from 1993 to 1999. Comes with mounting gaskets. Please note: No...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $299.99
    Subtotal:
    Add to Cart
  • Circulating Water Pump for Indmar & PCM Ford Engines
    Quick view

    Circulating Water Pump Ford Engines

    $274.99
    Circulating Water Pump for Indmar & PCM Ford Engines Fits all Ford based engines from Indmar, PCM, as well as others.  This new bi-rotational pump comes with a new mounting gasket to ensure a proper fit on your Ford 302 or 351 boat motor...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $274.99
    Subtotal:
    Add to Cart
  • Circulating Water Pump for GM 5.0 and 5.7 Engines
    Quick view

    Circulating Water Pump GM Engines

    $204.99
    Circulating Water Pump for GM Engines This is a new circulating water pump for Indmar and PCM GM marine engines. This pump fits GM 5.0 and 5.7 Liter small block GM engines. This pump is Standard (LH) rotation. Comes with new mounting gaskets to ensure a...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $204.99
    Subtotal:
    Add to Cart
  • Ilmor Circulation Water Pump | PV08093
    Quick view

    Ilmor Circulation Water Pump | PV08093

    Ilmor
    $299.99
    Ilmor Circulation Water Pump | PV08093 ***Don't forget to order the 2 gaskets needed when replacing this pump*** The Ilmor Circulation Water Pump (part # PV08093) is designed as a direct replacement for OEM Ilmor marine engines—particularly the 5...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $299.99
    Subtotal:
    Add to Cart
  • Indmar Cooler Kit Trans/Eng 495168
    Quick view

    Indmar Cooler Kit Trans/Eng 495168

    Indmar
    $849.99
    Indmar Cooler Kit Trans/Eng 495168   Use the boat part look up below to ensure you are purchasing the correct part for your boat.  
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $849.99
    Subtotal:
    Add to Cart
  • Hose formed "U" for Indmar LT1 Engines
    Quick view

    Hose formed "U" for Indmar LT1 Engines

    $17.99
    Hose formed "U" for Indmar LT1 Engines Formed U hose for Corvette LT-1 engines from Indmar and MasterCraft boats. Fits Indmar LT1 engines- goes from the raw water pump to the thermostat housing. Midwest MasterCraft stocks MasterCraft boat parts. Please...
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $17.99
    Subtotal:
    Add to Cart
  • Ilmor Jumper Lead, Coolant Temp | PL00373
    Quick view

    Ilmor Jumper Lead, Coolant Temp | PL00373

    Ilmor
    $28.99
    Ilmor Jumper Lead, Coolant Temp | PL00373 This jumper lead is a direct replacement part for your coolant temperature sensor.  
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $28.99
    Subtotal:
    Add to Cart
  • Quick view

    Indmar Transmission Cooler 9 x 1-1/4"

    Indmar
    $206.99
    Indmar Transmission Cooler 9 x 1-1/4" Indmar Transmission Cooler 9 x 1-1/4" Use the boat part look up below to ensure you are purchasing the correct part for your boat.  
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $206.99
    Subtotal:
    Add to Cart
  • Total: items /

Adding your products to cart

View Cart Continue Shopping