Genuine OEM Audi Coolant Pipe, part number 7L6121065AD. This complex, multi-branched pipe is designed to carry coolant efficiently between various engine components, playing a vital role in the engine's thermal management system. Weighing approximately 0.865 kg and measuring about 0.54 meters in length, it is a significant component of the cooling system. Using a genuine OEM coolant pipe ensures precise fitment, correct routing geometry, and the necessary material integrity for reliable, leak-free operation under engine operating conditions.