Shop Buick Century Engine Coolant Reservoir. 2019, FRONT SECTION. 4.2 LITER TWIN-TURBO, FRONT SECTION FRONT, Tank, SECTION - OEM Buick Part # 84023872

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

Engine Coolant Reservoir

Fits CT6

2019, FRONT SECTION. 4.2 LITER TWIN-TURBO, FRONT SECTION. CT6.
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.