Trying to figure out whatbthis part is.

Heater Control Valve
Factory Part Number 3579173

NORS 1971-73 CHRYSLER DODGE PLYMOUTH FULL SIZE W/O AC HEATER CONTROL VALVE | eBay
Replacement MOPAR 3579173 DT 72-79, 80 TO ½/80, ALL VAN, WGN Valve Heater Water | eBay
There may be others.


Alan