Shop Buick Century Engine Coolant Reservoir Cap (Right, Rear). EXPANSION TANK CAP; Accent. EXPANSION Tank, EXPANSION, Turbo - OEM Buick Part # 254401R000 (25440 1R000, 25440-1R000)

Cap. Reservoir. Coolant. Engine. Radiator.
A cover that prevents foreign debris from entering the container. Assembly -. Included with: Fan Assembly.

Engine Coolant Reservoir Cap

Fits Accent, Rio, Veloster

EXPANSION TANK CAP; Accent. EXPANSION TANK CAP; Veloster; w/o Turbo. Rio. W/O TURBO.
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.