Genuine OEM Audi Air Hose, part number 06H133781CG. This hose is designed to connect various components within the engine's air system, facilitating the precise flow of air or vacuum. Its robust construction ensures it can withstand engine bay temperatures and pressures without cracking or leaking. Choosing a genuine OEM air hose guarantees the correct internal diameter, material flexibility, and secure connection points, which are crucial for maintaining engine efficiency and preventing vacuum leaks or air intake issues.