Genuine OEM Volkswagen Roof Rail End Cap, part number 2K78984029B9. This cap is designed to finish and protect the end of a roof rail, contributing to the vehicle's exterior aesthetics. It is positioned at the end of the roof rail assembly. Finished in Satin Black (9B9), it ensures a factory-correct appearance and durable protection. Using genuine OEM caps guarantees a precise fit, preventing water ingress and maintaining the integrity of the roof rail system.