Genuine OEM Audi Output Shaft Securing Ring, part number 0CS311287D. This essential component is designed to secure the output shaft within the transmission assembly, preventing axial movement and maintaining proper gear engagement. It ensures the smooth and reliable operation of the drivetrain. Weighing just 0.0083 kg, this precision-engineered metal ring maintains critical internal clearances. Using a genuine OEM securing ring guarantees the exact dimensions and material strength required for the high stresses within a transmission, ensuring long-term durability and preventing premature wear.