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. By moving the coolant, the water pump helps to dissipate heat generated during combustion, preventing the engine from overheating. Typically driven by the engine's crankshaft via a belt, water pumps can be mechanical or electric. Regular maintenance, such as checking for leaks and ensuring proper coolant levels, is essential for the longevity of the water pump and the overall health of the vehicle's engine.