Genuine OEM Audi Transfer Line for Reducing Agent, part number 4G0131963A. This essential component is responsible for safely transferring the reducing agent, such as AdBlue, within the vehicle's Selective Catalytic Reduction (SCR) emissions system. It ensures the precise delivery of the agent to facilitate the reduction of harmful nitrogen oxides. Weighing approximately 0.25 kg and measuring 0.51m in length, this line is engineered for durability and chemical resistance. Using a genuine OEM transfer line guarantees correct routing geometry, material compatibility with the reducing agent, and leak-free operation, which is vital for maintaining emissions compliance and system integrity.