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, maintaining optimal operating temperatures. When the engine runs, the water pump draws coolant from the radiator and pushes it into the engine, where it absorbs heat. This heated coolant then returns to the radiator, where it releases heat and cools down. A malfunctioning water pump can lead to overheating, which may cause severe engine damage. Regular maintenance, including checking for leaks and ensuring proper operation, is essential for vehicle reliability and performance.