Genuine OEM Audi Engine Vacuum Hose, part number 06E133791. This hose is critical for delivering vacuum to various engine functions, supporting systems like braking, emissions, and engine management. Positioned on the left side of the engine, it ensures precise vacuum supply. Constructed from high-quality, flexible rubber, it offers excellent resistance to engine heat and fluids. Choosing a genuine OEM vacuum hose guarantees the correct material properties and precise routing, preventing vacuum leaks and maintaining optimal engine performance and efficiency.