The water pump is a crucial component of a vehicle's cooling system. Its primary function is to circulate coolant throughout the engine and radiator, ensuring that the engine maintains an optimal operating temperature. When the engine runs, the water pump draws coolant from the radiator and pushes it through the engine block, absorbing heat in the process. The heated coolant then returns to the radiator, where it is cooled down before circulating again. A malfunctioning water pump can lead to overheating, which can cause severe engine damage. Regular maintenance and timely replacement of the water pump are essential for vehicle longevity and performance.