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 block, and then returns it to the radiator for cooling. A malfunctioning water pump can lead to overheating, which may cause severe engine damage. Regular maintenance, such as checking for leaks and ensuring proper coolant levels, is essential for the longevity of both the water pump and the engine.