Genuine OEM Audi Rear Axle Differential Flange, part number 0BE525389. This critical component serves as the connection point between the driveshaft and the rear axle differential, facilitating the transfer of power to the wheels. It is precisely engineered for the rear axle assembly. Weighing approximately 1.51 kg, this flange is manufactured to strict factory tolerances. Choosing a genuine OEM differential flange ensures correct spline engagement, material strength, and balance, which are vital for smooth power delivery and preventing driveline vibrations.