Genuine OEM Volkswagen Rear Differential Spacer Bush, part number 0BA517242. This small but crucial component is designed to provide precise spacing and effectively dampen vibrations within the rear differential assembly. It plays a key role in maintaining proper alignment and reducing noise and wear in the drivetrain. Positioned within the rear differential, this metal bush weighs approximately 0.036 kg. Choosing a genuine OEM spacer bush ensures exact dimensions, correct material hardness, and optimal vibration isolation, which are critical for the longevity and smooth operation of the differential.