Genuine OEM Audi Coolant Pipe, part number 3C0121070AA. This rigid pipe is a vital component of the engine cooling system, responsible for transporting coolant efficiently throughout the system. It plays a crucial role in maintaining optimal engine operating temperatures and preventing overheating. The pipe weighs 0.312 kg and measures 0.43m x 0.14m x 0.155m. Opting for a genuine OEM coolant pipe ensures precise fitment, correct material composition for resistance to corrosion and temperature extremes, and reliable, leak-free performance.