1975 GMC C25 Suburban w/ AC;. 1976 GMC C25 Suburban w/ AC;. 1977 GMC C25 Suburban w/ AC;. 1978 GMC C25 Suburban w/ AC;. HVAC Blower Motor Resistor. Resistor Block. IMPORTANT: To confirm that this part fits your vehicle, enter your vehicles Year, Make, Model, Trim and Engine in the Compatibility Table.
