Shop 2004 Buick Century Engine Coolant Reservoir. 3.6 LITER. 4.4 LITER. 4.6 LITER, W/O TRAILER PACKAGE LITER, Tank, TRAILER - OEM Buick Part # 15882261

Reservoir. Tank. Assembly - Radiator Surge. Engine Coolant.
A container that holds Engine Coolant. Includes Reservoir Cap.

Engine Coolant Reservoir

Fits SRX, STS

3.6 LITER. 4.4 LITER. 4.6 LITER, W/O TRAILER PACKAGE. 4.6 LITER, W/O TRAILER PKG. 4.6 LITER, W/TRAILER PACKAGE. 4.6 LITER, W/TRAILER PKG. SRX. STS. STS-V.
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.