The Genuine BMW Lower Fender Liner Support Left - 51711977117 is a replacement part for the lower fender liner on the left side of a BMW vehicle. It is designed to support and secure the fender liner, which helps protect the engine compartment and other components from dirt, debris, and water. This product is made from high-quality materials and is an authentic BMW part, ensuring a perfect fit and reliable performance. It is suitable for various BMW models and is an essential component for maintaining the integrity and functionality of the fender liner.