Genuine OEM Audi Engine Vacuum Hose, part number 06E133773CL. This hose is an integral part of the engine's vacuum system, responsible for transmitting vacuum pressure to various engine components and actuators. It is positioned within the complex network of vacuum lines that control functions like brake boost, emissions, and turbocharger wastegate. Measuring approximately 0.57 meters in length, this hose is designed for specific routing and pressure integrity. Choosing genuine OEM ensures the correct material durability, precise connections, and resistance to collapse under vacuum, maintaining optimal engine performance.