Genuine OEM Audi Sliding Sleeve, part number 01X311315B. This component is an internal part of the transmission responsible for engaging and disengaging gears. It slides along a shaft to select the desired gear ratio. Manufactured to exact tolerances, this sleeve ensures smooth and precise gear changes. Genuine OEM parts are essential for transmission components to maintain the correct meshing of gears and ensure the longevity of the drivetrain.