1990 GMC K3500. 1991 GMC K3500. 1992 GMC K3500. 1994 GMC K3500. 1993 GMC K3500. HVAC Blower Relay. Compatible Years: 1990 1991 1992 1993 1994. IMPORTANT: To confirm that this part fits your vehicle, enter your vehicles Year, Make, Model, Trim and Engine in the Compatibility Table.
