Non AC Heater Boxes, Are All the Years the Same

Kevindc said

I'm looking for a replacement non AC heater box for my Dart Sport and would like to know what would fit. I got one off the forums from a Duster, but due to poor packaging it arrived in big cracked pieces therefore I need to find another. I think I found one from a 68 Valiant and wonder it would work.

Thanks

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68- 72 will interchange, they have 4 studs that go through the firewall and attach with nuts on the engine side.

73 and 74 changed to a 3 stud/ nut so an older one will not physically bolt up in addition to the controllers being completely different and cable routings and so on.

75 and 76 are also different because in those years the firewall has an additional hole for a vent tube coming out of the motor. There are also other minor differences.


best bet is to stay in the year group your car is in.