Genuine OEM Audi Vent Hose, part number 4F0121107AM. This hose plays a crucial role in various automotive systems by allowing air or vapor to escape, preventing excessive pressure buildup or ensuring proper circulation. It is typically positioned in areas requiring ventilation or pressure equalization. Constructed from durable rubber with a protective textile sleeve, this hose measures approximately 0.125 meters in length. Choosing a genuine OEM vent hose ensures the correct material composition, flexibility, and resistance to specific fluids or vapors, guaranteeing proper system function and longevity.