The original rubber insulators are most often missing due to age deterioration. They keep the valve from rattling against the inner fender well.
Buick Heater Control Valve Fits 1969-1974 Heater Core Hose Climate Control NOS
1969-1974 Buick Heater Control Valve with Show Correct Insulator # 1230707
1969-1974 Buick Heater Control Valve Insulator | Rubber | OEM #1230707
NEW Heater Control Valve 1959 Buick with Manual Heater MADE IN USA # 3146294
NOS 1968 BUICK LESABRE W/ AUTO CLIMATE CONTROL HEATER CONTROL VALVE 1385322
1971 to 1975 Buick Riviera With AC, Heater Control Valve EVERCO H-1946
