This NRF auxiliary water pump (part code 390098) is designed to circulate coolant within your vehicle's engine, playing a crucial role in maintaining optimal operating temperatures. Proper functioning of the auxiliary pump is essential for preventing overheating, especially during low-speed driving or when the engine is idling. It works in conjunction with the main water pump to ensure consistent coolant flow through the radiator and engine block. NRF is a reputable brand known for producing reliable cooling system components. This pump is manufactured to meet or exceed original equipment specifications, ensuring a proper fit and dependable performance.