Genuine OEM Audi Engine Vacuum Hose, part number 03L131055DH. This hose is a critical component in the engine's vacuum system, responsible for transporting vacuum pressure to various engine operations, including brake boosters and emission control systems. It ensures proper function of vacuum-actuated components. Weighing 0.076 kg, this hose is designed for precise routing. Choosing a genuine OEM hose guarantees the correct routing geometry and resistance to engine fluids and temperatures, preventing vacuum leaks and maintaining optimal system performance.