Genuine OEM Audi Secondary Shaft, part number 0HL311201A. This part is a core element of the transmission, responsible for transmitting rotational motion between gears. It is situated within the gearbox. This part weighs approximately 3.504 kg and has a length of 0.505 m. Genuine OEM secondary shafts are critical for maintaining the precise alignment and smooth operation of transmission gears, ensuring reliable power delivery.