The Genuine BMW Bulb Socket - 63128389744 is a replacement part for BMW vehicles. It is a socket that holds the bulb in place and connects it to the electrical system of the car. This socket is made with high-quality materials and is designed to fit perfectly in BMW models. It is an essential component for proper functioning of the vehicle's lighting system. This product is an authentic BMW part and is guaranteed to meet the same standards as the original socket installed in the car.