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2000-2005 Cadillac DeVille Expansion Tank - Genuine W0133-1820196
The OES Genuine Expansion Tank is designed for Cadillac DeVilles from 2000, 2001, 2002, 2003, 2004 and 2005. Your Expansion Tank protects your cooling system by allowing a place for your engine coolant to expand as engine temperatures rise. The Expansion Tank will let the air and antifreeze in a cooling system to expand because of the higher temperature and pressure. Expansion Tanks provide space for the cooling fluid to expand as temperatures rise, preventing your car's radiator from leaking or boiling over, or fluid from spilling out of your cooling system. You should inspect antifreeze levels in the Expansion Tank regularly since sudden drops in a car's coolant level could indicate that there is a leak in the cooling system. Without the Expansion Tank on a car, the coolant or antifreeze that is typically released under pressure would most likely spill out of the car which is bad for the environment. The Expansion Tank can begin to leak due to harsh weather or wear; when this happens a new unit must be installed to maintain your cooling system in tip
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