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Heater Craft 3 Vent Heater Core Only

Even on the warmest days, being in the water can suck the heat right out of your body. That’s why you want a working ski boat heater if you are serious about your water sports and keeping you and your crew safe and comfortable.

This Heater Craft 300H heater core is also for the 400H hydronic marine heater with 5/8” hose barb. Our Heater Craft heater core does not fit systems made before 2002.

For older systems, you will need a new box and blower rather than a heating core for repairs. Call or email us with any questions about your marine heater core or system.

8 Available, In Stock

Product Description:

Heater Craft Replacement tube and fin heater core for 300H and 400H hydronic marine heater with 5/8" hose barb. Please note that Heater Core has changed and does not fit in older style boxes. See image to identify new vs. old sytyle, if you have the old style or if your system is older than 2002 you will need a new box and blower to repair your heater system.

Product Specs:

  • Replaces 300(3 Vent), 340(4 Vent), 360(6 Vent), 400(Grill) Sport, Pro and Elite systems
  • Core Replacement Only
  • Dimensions: Width 6.5", Length 16" , Depth including pipes 4''.
  • OEM Heater system used in Malibu Boats, Axis, Mastercraft, Supra, Moomba, Centurion, and many other boat manufactures
  • PLEASE NOTE: This updated style heatercore DOES NOT fit in the older style heater Craft box. If system is older than 2002 you will need a Marine Heater 300 Unit Only (Sport, Pro, Elite). NEW CORE, BLOWER, and BOX.

Resource Library:

More Information
Manufacturer Heater Craft
Manufacture part number H301
Weight 4.000000
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