Genuine OEM Audi Rear Right Window Guide Rail, part number 8R0839068C. This rail is crucial for guiding the smooth and stable movement of the window glass as it raises and lowers. It is positioned within the rear right door assembly. Weighing 0.087 kg and measuring 0.34m in length, this guide rail is engineered for precise operation. Using a genuine OEM guide rail ensures correct dimensions, material properties, and friction characteristics for reliable window operation and longevity.