Genuine OEM Audi Engine Coolant Hose, part number 1EA121057T. This hose is an essential part of the engine cooling system, responsible for carrying coolant between various engine components to regulate temperature effectively. It is a short, curved connection hose, often found linking specific parts within the engine bay. Weighing 0.0491 kg and measuring 0.145 meters in length, it is designed for a specific routing. Using a genuine OEM coolant hose guarantees the correct material, diameter, and bend radius for a leak-free connection and long-term resistance to heat, pressure, and coolant chemicals.