Genuine OEM Volkswagen Rear Shock Absorber Stop Buffer, part number 3C0511359A. This component is installed in the rear suspension assembly, positioned above the shock absorber. Its primary function is to limit the upward travel of the shock absorber, preventing harsh bottoming out and protecting suspension components from damage. Weighing 0.06 kg, this buffer is crucial for maintaining ride comfort and suspension integrity. Using a genuine OEM buffer ensures the correct material composition and progressive damping characteristics for optimal suspension performance and longevity.