Shop 2003 Buick Century Engine Coolant Reservoir. 4.3 liter, all. Engine Coolant Expansion Tank - COOLING, Tank, Cause - OEM Buick Part # 15075570 (15990479)

Engine Coolant Reservoir. Recovery tank.
A container that holds Engine Coolant.

Engine Coolant Reservoir

Fits Blazer, Bravada, Jimmy , S10 , Sonoma

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