This is a new Four Seasons heater valve. It is an aftermarket replacement. The part number is 74640, it replaces Mopar numbers: 3441410, 3441516, 3441561, 3441562, 3441885, 34894747 This is a original style heater valve, not the aftermarket replacement style.
According to Four Seasons it fits: 1971 Chrysler products with ac except automatic temperature control.
It also fits Dodge vans 1969-1971
The part number may have been later superseded to fit other models, but this is the only correct application in the original listings.