Heater Craft 3 Vent Heater Core Only

Heater Craft Replacement tube and fin heater core for 300H and 400H hydronic marine heater with 5/8" hose barb. Please note that the Heater Core has changed and does not fit in older-style boxes. See the image to identify the new vs. old style, 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 heater core DOES NOT fit in the older style heater Craft box. If the system is older than 2002 you will need a Marine Heater 300 Unit Only (Sport, Pro, Elite). NEW CORE, BLOWER, and BOX.

Resource Library:

• Heater Core Style ID (JPG)