Genuine OEM Volkswagen Window Regulator End Cap, part number N91113901. This component serves as a protective cap or closure within the window regulator assembly, preventing debris ingress and ensuring smooth operation of the mechanism. It is designed to fit precisely into the regulator housing. This cap is manufactured to exact factory specifications for material durability and fitment. Choosing genuine OEM parts ensures the correct seal and long-term reliability of the window regulator system.