1999 Pontiac Grand Am Engine: 2.4L L4;. 2000 Pontiac Grand Am Engine: 2.4L L4;. Pressure Open Bypass Heater Valve. 2001 Pontiac Grand Am Engine: 2.4L L4;. Heater Valve. Type: Heater Valves. Ensure that this part fits your vehicle by entering your vehicle's Year, Make, Model, Trim, and Engine in the Compatibility Table.
