Genuine OEM Volkswagen Rear Axle Shaft Spacer Sleeve, part number 2K0505147. This precision-machined sleeve is installed on the rear axle shaft, designed to maintain correct spacing and alignment between various drivetrain components. It weighs 0.275 kg. Using a genuine OEM spacer sleeve ensures exact dimensions, material hardness, and proper fitment, which is crucial for the smooth and reliable operation of the rear axle assembly.