Genuine OEM Audi Coolant Hose, part number 7L8122447M. This hose is a critical component of the engine cooling system, responsible for transferring coolant between various engine components. It ensures efficient heat dissipation and maintains optimal engine operating temperature. Measuring 0.63m in length and weighing 0.146 kg, this genuine OEM hose provides the correct routing geometry and material resistance for reliable coolant flow and long-term durability.