Genuine OEM Audi Coolant Hose, part number 4K0145924M. This hose is a critical component of the engine cooling system, responsible for transporting coolant between various engine components and the radiator. It ensures efficient heat exchange to maintain optimal engine operating temperature. Weighing 0.174 kg and measuring approximately 0.48m in length, this hose is designed for specific routing. Using a genuine OEM coolant hose guarantees the correct material composition for heat and pressure resistance, along with precise routing geometry for reliable, leak-free performance.