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. By maintaining this temperature, the water pump helps prevent overheating, which can lead to severe engine damage. Typically driven by a belt connected to the engine, the water pump works continuously while the engine is running. Regular maintenance, including checking for leaks and ensuring proper coolant levels, is essential for the longevity of the water pump and the overall health of the vehicle.