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, pushes it through the engine, and returns it to the radiator for cooling. A malfunctioning water pump can lead to overheating, which may cause severe engine damage. Regular maintenance, including checking for leaks and ensuring proper fluid levels, is essential to keep the water pump functioning effectively and to ensure the longevity of the engine.