MK667228
Water Pump Assembly
Mitsubishi FUSO®

The Water Pump Assembly (part number MK667228) is a vital component of a truck's engine cooling system. It is responsible for circulating coolant through the engine block, cylinder head, and radiator to regulate the temperature of the engine. The assembly includes a pump, pulley, housing, and gasket. The pump is typically driven by a belt connected to the engine's crankshaft. As the belt rotates, it turns the pulley on the water pump shaft, which in turn drives the impeller inside the housing. The impeller creates suction that draws coolant from the radiator into the pump and then forces it through channels in the engine block and cylinder head before returning to the radiator to be cooled again. A malfunctioning water pump can lead to overheating and serious damage to the engine, making regular maintenance and replacement important for optimal performance and longevity of a truck's cooling system.