1979, 1981-1986 GMC C1500 Suburban 5.7L V8. 1981-1986 GMC C1500 Suburban 5.0L V8. 1980 GMC C1500 Suburban 5.7L V8 VIN: L. Notes: Engine Water Pump Gasket -- Water Pump to Block; Composite. Ensure Proper FitTo confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in the Compatibility Table.