1973 Chevrolet C20 Suburban w/ AC;. Part Type: HVAC Blower Motor Resistor. HVAC Blower Motor Resistor. 1974 Chevrolet C20 Suburban w/ AC;. 1975 Chevrolet C20 Suburban w/ AC; w/o Heavy Duty Heater;. 1976 Chevrolet C20 Suburban w/ AC; w/o Heavy Duty Heater;.
