Is water leaking into the trunk of your BMW, or is the old rear windshield seal cracked and ugly? This is the GENUINE BMW OEM rear upper windshield seal, part number 51317027916. It's the exact same part that came on your car from the factory, ensuring a perfect fit and finish. This black rubber seal is crucial for keeping water, wind, and dust out of your vehicle. It fits a wide range of 2004-2010 BMW models (always double-check your specific model with the part number!). It's a brand new, direct replacement part, shipped in its official packaging. Comes with a fantastic LIFETIME manufacturer warranty for peace of mind. Restore the weathertight integrity and clean look of your BMW's rear glass. A must-have for any repair or windshield replacement job. Don't settle for aftermarket fits – go with the real deal.