Genuine OEM Audi Door Reinforcement Bar, part number 4M8837959A. This bar is designed to reinforce the structural integrity of the door, providing enhanced safety and durability. It is positioned within the front left door assembly. Measuring 0.975 meters in length and weighing 2.127 kg, this bar is a critical safety component. Choosing a genuine OEM part guarantees the correct material strength, precise dimensions, and factory-engineered crash performance.