Genuine OEM Audi Coolant Hose, part number 3D0122058B. This specialized hose is designed to connect the transmission oil cooler to the vehicle's primary cooling system, facilitating the regulation of transmission fluid temperature. Proper cooling of transmission fluid is vital for the longevity and efficient operation of the transmission. Weighing 0.275 kg and measuring 0.4 m in length, it is engineered for precise routing and secure connections. Using a genuine OEM hose ensures the correct material properties, resistance to heat and pressure, and exact fitment, preventing leaks and maintaining the integrity of both the cooling and transmission systems.