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BMW Expansion Tank Cap 17117639020

Part Fit for BMW

An expansion tank, also known as overflow bottle, is also used in the cooling system of most internal combustion engines, to

BrandBMW
Part Number17117639020
Vendor code17117639020
ConditionNew
TypeGenuin
SKU5292333
An expansion tank, also known as overflow bottle, is also used in the cooling system of most internal combustion engines, to allow the coolant, the antifreeze, and the air in the system to expand with rising temperature and pressure. The tank is also called a coolant recovery tank, since it prevents venting and permanent loss of coolant, by allowing it to be sucked back into the cooling system as the engine cools.