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 optimal operating temperatures. As the engine runs, the water pump draws coolant from the radiator, pushes it through the engine block, and back to the radiator. This process prevents the engine from overheating, which can cause severe damage. A malfunctioning water pump can lead to coolant leaks, overheating, and engine failure. Regular maintenance, including checking for leaks and ensuring proper coolant levels, is essential for the longevity and efficiency of the water pump and the overall cooling system.