Genuine OEM Audi Rear Inner Fender Liner, part number 4M0821191G. This left-side component is essential for protecting the wheel well and surrounding engine bay or underbody components from road debris, water, and salt. It helps prevent corrosion and damage to sensitive parts. Positioned within the rear wheel arch, its molded design ensures comprehensive coverage. Weighing 0.472 kg, a genuine OEM fender liner guarantees precise fitment and durable material, maintaining effective protection and reducing road noise.