Genuine OEM Audi Rear Sunroof Frame Seal, part number 8T0877439. This rubber seal is specifically designed for the rear section of the sunroof frame, creating a watertight and airtight barrier. Its primary function is to prevent water ingress into the vehicle's cabin and to reduce wind noise, ensuring a comfortable and dry interior. Choosing a genuine OEM sunroof frame seal guarantees the correct material flexibility, precise dimensions, and proper attachment for a perfect, long-lasting seal.