Genuine OEM Volkswagen Rear Differential Taper Roller Bearing, part number 0BA409321C. This critical component is designed to support rotating elements within the rear differential, facilitating efficient power transfer and reducing friction. It is situated within the rear differential assembly. Weighing approximately 0.494 kg with dimensions of 0.09m x 0.09m x 0.021m. Using a genuine OEM bearing ensures precise fitment, correct load distribution, and factory-specified tolerances for optimal performance and extended service life.