Genuine OEM Audi Cooler Air Tube Hose, part number 7L6128609D. This left-side hose is designed to channel cooled air from the intercooler into the engine's intake system, ensuring optimal air density for combustion. It measures 0.42m in length, 0.14m in width, and 0.08m in height, weighing 0.303 kg. Using a genuine OEM air tube hose guarantees the correct internal diameter, material flexibility, and resistance to pressure and temperature fluctuations, crucial for maintaining boost pressure and engine efficiency.