11 51 0 393 731 : Water pump for BMW Series 3 E46

The water pump ensures the circulation of coolant between the engine and radiator of the BMW Series 3 E46, thereby guaranteeing correct thermal management of the engine. Its replacement becomes necessary during a complete restoration or preventive maintenance of this classic vehicle, notably on versions equipped with the M47 engine. A failing pump exposes the engine to overheating risks that can cause costly and irreversible damage. This new part allows you to keep the BMW Series 3 E46 in a state of operation consistent with its original use.