The water pump is a crucial component of a vehicle's cooling system. Its primary function is to circulate coolant through the engine and radiator, ensuring that the engine operates at an optimal temperature. When the engine runs, the water pump draws coolant from the radiator and pumps it into the engine, where it absorbs heat. The heated coolant then returns to the radiator, where it is cooled before being circulated again. A malfunctioning water pump can lead to engine overheating, potentially causing severe damage. Regular maintenance and timely replacement of the water pump are essential for the longevity and efficiency of the vehicle.