The Genuine BMW Door Sill Cover Primed Left - 51177233365 is a replacement part for BMW vehicles. It is designed to cover and protect the door sill area on the left side of the vehicle. The cover is primed, meaning it is ready to be painted to match the color of the vehicle. This door sill cover is made of high-quality materials and is an authentic BMW product. It is specifically designed for the left side of the vehicle and is compatible with various BMW models. This door sill cover is easy to install and provides a sleek and finished look to the interior of the vehicle.