The Genuine BMW Upper Headlight Gasket Left (E83) - 63126939273 is a replacement gasket for the upper part of the headlight on a BMW E83 model. This gasket is designed to provide a secure and waterproof seal between the headlight and the vehicle body, preventing any water or debris from entering the headlight assembly. It is an authentic BMW product, ensuring high quality and a perfect fit for your vehicle. This gasket is specifically designed for the left side of the headlight and is part of the BMW E83 model's headlight assembly. It is an essential component for maintaining the proper function and appearance of your vehicle's headlights.