The water pump pulley is important in the engine's cooling subsystem. It is manufactured from cast iron or aluminum and is linked to the water pump shaft. The pulley is driven by a V belt or serpentine belt coming from the motor's crank. When the engine operates, the crankshaft rotates, and the water pump pulley starts turning. This action results in the water pump impeller turning as well. The coolant must flow through the engine and radiator to control the engine's temperature, so rotation is very important. The water pump pulley provides the correct speed for the water pump; hence optimal performance is guaranteed. If the alignment is incorrect or the parts are too worn out, the engine might be inadequately cooled.
