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, preventing overheating. The pump is typically driven by the engine’s crankshaft via a belt or chain. As the engine runs, the water pump draws coolant from the radiator and pushes it through the engine, absorbing heat. This heated coolant then returns to the radiator, where it is cooled before circulating again. Regular maintenance of the water pump is essential, as a failure can lead to engine overheating and potential damage, emphasizing the importance of timely inspections and replacements.