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, maintaining optimal operating temperatures. When the engine runs, the water pump draws coolant from the radiator and pushes it into the engine, absorbing heat. This process helps prevent overheating, which can lead to engine damage. Most modern vehicles use a belt-driven water pump, which is powered by the engine. Regular maintenance, including checking for leaks and ensuring proper coolant levels, is essential to keep the water pump functioning effectively and to ensure the longevity of the engine.