Genuine OEM Audi Radiator Coolant Hose, part number 8K0145920C. This hose is responsible for transporting engine coolant to and from the radiator, playing a critical role in the engine's thermal management system. It is positioned on the left side of the engine cooling assembly. Constructed from durable, heat-resistant rubber, it weighs approximately 0.268 kg. Genuine OEM coolant hoses ensure precise routing, correct diameter, and resistance to high temperatures and pressures for reliable engine cooling and leak prevention.