The Genuine BMW Turn Signal Light Bulb - 63117228422 is a replacement bulb for the turn signal lights on BMW vehicles. It is a genuine BMW part, ensuring high quality and compatibility with the vehicle. The bulb is designed to provide bright and clear signaling for safe and effective communication with other drivers on the road. It is a direct replacement for the original bulb and is easy to install. This turn signal light bulb is an essential component for maintaining the proper functioning of the vehicle's turn signals.