Genuine OEM Audi Coolant Hose, part number 1T0121157T. This hose is designed to connect various components within the engine cooling system, facilitating the flow of coolant to maintain optimal engine operating temperatures. It features integrated quick-release couplings for secure and efficient connections. Weighing 0.328 kg and measuring 0.455 meters in length, this genuine OEM hose provides precise routing geometry and resistance to high temperatures and pressures, crucial for preventing leaks and ensuring the longevity of the cooling system.