Genuine OEM Audi Vacuum System Hose, part number 04L131051M. This hose assembly provides vacuum for various engine systems, supporting critical functions such as brake boosting, emission control, and turbocharger regulation. It is positioned within the engine bay, connecting vacuum-actuated components. Weighing 0.31 kg and measuring 0.24m in length, this hose assembly is designed for precise fitment. Choosing a genuine OEM vacuum hose ensures proper material integrity, resistance to engine bay conditions, and leak-free operation, vital for system reliability.