Genuine OEM Audi Rear Bumper Locking Mechanism, part number 4J3807740. This essential component is designed to securely fasten and align the rear bumper to the vehicle body, preventing movement and ensuring proper panel gaps. It is specifically located on the right side of the rear bumper assembly. Measuring approximately 0.14m in length, 0.028m in width, and 0.022m in height, and weighing 0.019 kg, this mechanism is engineered for precise fitment. Choosing a genuine OEM locking mechanism guarantees the correct dimensions, material strength, and engagement points for a secure and rattle-free bumper installation.