Genuine OEM Volkswagen Reduction Agent Supply Line, part number 2N0131983A. This specialized line is responsible for accurately delivering reduction agent, such as AdBlue, to the vehicle's selective catalytic reduction (SCR) system. It is a vital component of the emission control system, ensuring compliance with environmental standards. Weighing 0.207 kg, this genuine OEM supply line is designed for precise chemical resistance and routing, which is essential for the proper functioning and longevity of the emission treatment system.