1991-1995 GMC G1500 5.0L V8. 1991-1993 GMC G1500 5.7L V8. 1985-1995 GMC G1500 4.3L V6. Notes: Engine Coolant Thermostat Gasket -- Molded Rubber. Ensure Proper FitTo confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in the Compatibility Table.