Genuine OEM Audi Heat Exchanger Coolant Hose, part number 8K2819373E. This hose is responsible for transporting coolant to the heat exchanger, which is crucial for the vehicle's cabin heating system. It is designed for Right-Hand Drive (RHD) configurations. Weighing 0.2745 kg and measuring 0.52 m in length, this genuine OEM hose provides the correct routing geometry and material resistance to withstand coolant temperatures and pressures, ensuring reliable and leak-free operation of the heating system.