The Genuine BMW Upper Headlight Gasket Left - 63126921859 is a high-quality replacement gasket for the left side of the upper headlight on BMW vehicles. This gasket is designed to provide a secure seal and prevent moisture from entering the headlight housing, protecting the internal components from damage. It is an authentic BMW part, ensuring a perfect fit and reliable performance. This gasket is made from durable materials and is built to withstand the elements, providing long-lasting protection for your vehicle's headlight.