Audi / Volkswagen Lower Radiator Coolant Hose / Line 8D0121049D

The Lower Radiator Coolant Hose is a vital component in the vehicle's cooling system, connecting the lower radiator outlet to the engine's water pump. Its primary role is to transport coolant to and from the radiator, facilitating optimal engine temperature management. This OEM part, compatible with vehicles such as the Audi A4, A6, and S4 (1998-2004), Volkswagen Passat (1999-2001), can resolve common issues like coolant leaks, overheating, or insufficient coolant flow caused by wear, cracks, or disconnections. The OEM part numbers 8D0121055K, 4B0121055C, and 8D0121055T ensure you receive an authentic replacement that fits seamlessly with your vehicle’s original setup.