The Genuine BMW Turn Signal Light Bulb - 63117339059 is a replacement bulb specifically designed for BMW vehicles. It is a genuine OEM (Original Equipment Manufacturer) part, ensuring high quality and compatibility with your vehicle. This turn signal light bulb is responsible for providing a bright and clear signal when you activate your turn signals, helping to ensure safe and visible signaling to 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 functionality and safety of your BMW vehicle.