Genuine OEM Volkswagen Rear Suspension Bump Stop, part number 1J0512131B. This critical component is designed to absorb the final impacts of suspension travel, preventing the shock absorber from bottoming out and protecting the vehicle's chassis from damage. It is positioned on the rear shock absorber shaft. Weighing 0.084 kg and measuring 0.13 m in length, its precise dimensions and material composition are crucial for maintaining the intended ride quality and suspension longevity, ensuring factory-specified performance and durability.