Genuine OEM Audi Radiator Hose, part number 2Q0122051AC. This vital component carries coolant between the engine and the radiator, facilitating heat exchange to maintain optimal engine operating temperatures. It is specifically designed for the left side of the cooling system assembly. With a length of approximately 0.52 meters, it features the precise bends and connections required for proper routing. Choosing a genuine OEM radiator hose ensures correct fluid resistance, pressure handling, and exact routing geometry for leak-free and reliable performance.