Used Heater Box Assembly for 1967-1968 Mercury Cougar and 1965-68 Ford Mustang without air conditioning. The heater box assembly consists of the front and rear casings with doors. This is a used factory fiberglass two piece heater box/heater core casing. We suggest purchasing the foam kit and new heater core. These used boxes are over 45 years old, there will likely be some cosmetic issues, which include minor cracks or chipped fiberglass. Clips to hold two pieces together are included.
*Note - Does not include fan, or blower motor or heater core.
Check out our video below on how to replace a heater core! We used a '69 Cougar with A/C, but many of the same concepts apply to other years.
Check out this video