Genuine OEM Audi Engine Coolant Hose, part number 1EA121449N. This hose is responsible for circulating coolant throughout the engine cooling system, which is essential for dissipating heat and maintaining the engine's operating temperature. It is a curved component within the complex cooling circuit. Weighing 0.146 kg, this hose is manufactured from robust, heat-resistant rubber compounds. Genuine OEM hoses guarantee precise routing, correct diameter, and resistance to thermal cycling and pressure, preventing leaks and ensuring system reliability.