Genuine OEM Audi Rear Left Wheel Arch Liner, part number 420810171F. This protective component is designed to shield the inner fender area from road debris, water, and other elements, preventing corrosion and damage to underbody components. It is specifically for the rear left wheel well. Made from durable black plastic, it weighs approximately 1.586 kg. Choosing a genuine OEM wheel arch liner ensures a precise fit, correct mounting points, and the durable material quality required to withstand harsh road conditions and maintain vehicle integrity.