1997-1999 Chevrolet C2500 Suburban 6.5L V8. 1992-1999 Chevrolet C2500 Suburban 5.7L V8. Notes: Engine Coolant Thermostat Housing Seal -- 1.954" ID; Old design; Superseded - When depleted use 35710. Ensure Proper FitTo confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in the Compatibility Table.