Ford Thunderbird 1955-1957. FORD CAR WITH VACUUM HEATER SYSTEM. When it's cold outside the engine Still reaches a temperature that allows you to make use of the engine heat when you open the water valve of the heater.
Astro Safari Rear HVAC Heater Control Valve for 1993-1995, Vacuum Control Valve
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1957 CHEVY HEATER CONTROL VALVE for DELUXE HEATER
1955 1956 CHEVY HEATER CONTROL VALVE for DELUXE HEATER
