Genuine OEM Audi Differential Flange Shaft, part number 0D6409356. This crucial drivetrain component connects the differential to other parts of the driveline, transmitting power efficiently to the wheels. It is specifically designed for the right side of the differential assembly. Weighing approximately 1.6 kg, a genuine OEM flange shaft ensures precise machining, correct spline engagement, and durable materials for reliable power transfer and long service life without excessive wear or vibration.