Genuine OEM Volkswagen Rear Suspension Stop Buffer, part number 3C0511359F. This component is designed to prevent excessive suspension compression, protecting the shock absorber from bottoming out and absorbing harsh impacts. It is installed in the rear suspension assembly. Weighing approximately 0.111 kg and measuring 0.118 m in length, it is typically made from durable rubber or polyurethane. Choosing a genuine OEM stop buffer ensures the correct material composition and progressive damping characteristics for optimal suspension performance and longevity.