Genuine OEM Volkswagen Rear Bumper Foam Filler, part number 5K0807251A. This grey foam component is positioned behind the rear bumper cover, designed to fill gaps and absorb energy from minor impacts. It contributes to pedestrian safety and protects the bumper structure. Weighing 0.821 kg, a genuine OEM foam filler ensures the correct density and shape for effective energy absorption, maintaining the vehicle's safety ratings and structural integrity in low-speed collisions.