This 1964-1966 Mustang heater plenum box and hose kit allows the hot air to travel to the dash and defrost the windshield. Repair the old worn out out defroster hoses and plenum box in your Mustang with our durable, Made in the USA heater plenum and hose kit. Not to be confused with the cheap import options on the market.
Our Heater Plenum Chamber is made of high temperature injection molded ABS plastic with insulated metal air deflector to eliminate rattles and have predrilled mounting holes for an easy installation.
Note:The Ford original Mustang Heater Plenums were made from a pressed board that deteriorated and warp when exposed to liquid. They are also often torn. Our plenum chambers go through injection molded process for a precise fit for all 1964-1966 Mustangs and 1967-1968 Cougar without A/C.
1 Heater Plenum with cable tab,screw and push on cable retainer clip.
2 Defroster hoses with plastic injected duct cones attached.
4 OEM style mounting clips.
Proudly manufactured in the USA