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 maintains an optimal operating temperature. When the engine is running, the water pump draws coolant from the radiator and pushes it through the engine, absorbing heat in the process. This prevents overheating and helps maintain efficiency. If a water pump fails, it can lead to severe engine damage due to overheating. Regular maintenance, including checking for leaks and ensuring proper operation, is essential for the longevity of both the water pump and the engine.