NOS GM ( new old stock) 1965 1966 1967 1968 Pontiac Bonneville Catalina with Automatic Temperature Control and Air Conditioning Blower Motor Resistor. THIS HEATER BLOWER RESISTOR IS FOR CARS WITH ATC, GM part # 9779450 and GR. 9.275 ....box is missing one end but part is great condition..please confirm fit for your application as I'm not a Pontiac expert.