Genuine OEM Audi Rear Differential Taper Bearing, part number 113517185B. This precision-engineered bearing supports rotational components within the differential assembly, crucial for power transfer. It is positioned on the left side of the rear differential. Weighing approximately 0.241 kg with dimensions of 0.067m x 0.067m x 0.02m. Genuine OEM bearings are manufactured to exact factory tolerances, providing vibration-free service life and optimal performance under load.