Notes: Thermostat O-Ring. Notes:Thermostat O-Ring. 1988-1991 Pontiac 6000 3.1L V6. 1987-1989 Pontiac 6000 2.8L V6. 1988-1989 Pontiac 6000 2.8L V6. Ensure Proper FitTo confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in the Compatibility Table.
