Genuine OEM Volkswagen Rear Leaf Spring Stop Buffer, part number 2D0511155B. This buffer is designed to prevent excessive compression of the leaf spring, protecting the suspension system from damage during extreme travel. It is located in the rear suspension assembly. Made from durable rubber, it weighs 0.377 kg. Using a genuine OEM buffer ensures the correct material hardness and dimensions for effective suspension travel limitation and long-term durability.