Reservoir. Tank. Assembly - Radiator Surge. Engine Coolant.
A container that holds Engine Coolant.
Engine Coolant Reservoir
Fits CT6
2016-18, FRONT SECTION, W/HYBRID. 2016-18, FRONT SECTION, W/O HYBRID. 3.0 LITER TWIN-TURBO, FRONT SECTION. CT6. CT6; 3.0L. CT6; 3.6L.
Engine Coolant Expansion Tank - Repair or Replace
A failed expansion tank can cause the cooling system in your 2000 Buick to leak antifreeze, or it can cause your engine to overheat. If you're losing coolant, contact our service department to avoid engine damage.
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