Genuine OEM Audi Coolant Hose with Coupling, part number 4M0122055DG. This hose connects various cooling system components, facilitating the circulation of coolant for optimal engine temperature regulation. It features a quick-release coupling for secure and efficient connection within the cooling circuit. Weighing approximately 0.323 kg, this hose is designed for precise fitment and resistance to temperature and pressure fluctuations. Choosing a genuine OEM coolant hose ensures the correct routing geometry, material composition, and pressure resistance for reliable, leak-free performance.