Genuine OEM Volkswagen Transmission Oil Supply Line, part number 2H0317821A. This critical component is responsible for safely transporting pressurized transmission fluid, often from an external cooler, to the transmission unit for lubrication, cooling, and hydraulic operation. It is a pre-formed metal line designed for precise routing within the drivetrain assembly. With a length of approximately 0.81 meters and weighing about 0.4763 kg, this line is engineered for durability under high pressure and temperature. Using a genuine OEM transmission oil line ensures correct material composition, precise bending for proper fitment, and robust connections vital for preventing leaks and maintaining the performance and longevity of the transmission.