Hella Engine Cooling Water Pump (8TW 358 412-001) Fits: BMW

This Hella Engine Cooling Water Pump (8TW 358 412-001) Fits: BMW and is supplied in OE-matching quality and maintains the high standards of Hella products.

An engine cooling water pump (often just called the water pump) is a vital part of a vehicle’s cooling system. Its main job is to keep coolant circulating between the engine and the radiator so that heat can be carried away and the engine stays at a safe operating temperature.

The pump is usually driven by a belt connected to the engine’s crankshaft, though in some modern cars it can be electrically powered. Inside the pump is an impeller, a wheel with curved blades. As the impeller spins, it pushes coolant through the engine’s water passages, around the cylinder head and block, and then out to the radiator.

In the radiator, the coolant releases the heat it has absorbed, before the pump drives it back into the engine to continue the cycle. Without the water pump, coolant would not circulate properly, and the engine would quickly overheat, risking serious damage.

In short: the engine cooling water pump acts like the heart of the cooling system, constantly moving coolant so the engine stays cool and efficient.