Genuine OEM Volkswagen Filling Tube for SCR Reducing Agent, part number 5QA131965F. This tube is an integral part of the SCR (Selective Catalytic Reduction) system, specifically designed for refilling the reducing agent reservoir. It ensures proper and safe delivery of the fluid. Manufactured to exact specifications to prevent leaks and ensure correct flow. Genuine OEM SCR filling tubes are essential for maintaining the integrity of the emissions system and ensuring proper AdBlue fluid delivery.