Genuine OEM Volkswagen Automatic Gearbox Nut, part number WHT010731. This nut is designed to secure components within the automatic gearbox or parking brake system. It is located at position 6 in the diagram. The nut has a diameter of approximately 22mm and a height of 11mm. Genuine OEM nuts provide the correct thread pitch and material strength for safe and reliable operation of critical drivetrain components.