Heater Control Valve:
This is the vacuum operated heater control valve for ALL air conditioned equipped models listed below WITHOUT Auto Temp Control. This USA made EVERCO part fits and functions the same as your OE valve. NEW original USA made part from when Everco was in Ottumwa Iowa.
H1944 [same as GM P/n 390178, 3992098]
1971; 1972; 1973; 1974
Caprice, Impala, 1971, 1972 only
Chevelle, Malibu, SS, Monte Carlo, Nova, Camaro, SS, 1971, 1972, 1973, 1974, ALL with valve on intake manifold
Ventura; 1971; 1972