Ford B-Max 2012-2017 Radiator Coolant Expansion Header Tank Vehicle Model_T25 E Number (4400T9) to help

E Number (4400T9) to help ensure you select the correct part for your vehicle

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E Number (5450200QAA) in the product specification to help ensure compatibility before purchase

Ford B-Max 2012-2017 Radiator Coolant Expansion Header Tank Vehicle Model_T25 E Number (4400T9) to helpOne of the lesser known parts on your Ford B Max is the coolant expansion tank. This component is responsible for catching and storing coolant overspill from the vehicle's radiator. The coolant in your vehicle is designed to prevent the engine from overheating. As it reaches its optimal operating temperature, it expands and can overflow. The expansion reservoir collects this excess fluid and stores it safely instead of letting it spill onto the road.