3.4 & 3.5 LITER. 3.6 LITER. Attaches the engine coolant overflow Reservoir to its mounting point on vehicle. Radiator Support Air Deflector Rivet. Engine Coolant. LARGE Dome HD Type P Break Mandrel BLUE. Radiator Support Air. Retainer. Included with: Reservoir.

Radiator Support Air Deflector RivetEngine Coolant Reservoir Rivet

Fits Aztek, Cavalier, Rendezvous, Sunfire

Engine Coolant Expansion Tank - Repair or Replace
A failed expansion tank can cause the cooling system in your 2003 Pontiac Sunfire to leak antifreeze, or it can cause your engine to overheat. If you're losing coolant, contact our service department to avoid engine damage.