Genuine OEM Audi Engine Coolant Hose, part number 4H0122049A. This flexible hose is a vital component of the engine cooling system, responsible for transporting coolant between the radiator and other engine components to regulate temperature. It ensures efficient heat exchange and prevents engine overheating. Weighing 0.65 kg and measuring 0.54m in length, this hose is constructed from durable, heat-resistant rubber compounds. Opting for a genuine OEM coolant hose guarantees precise fitment, correct routing, and resistance to thermal and pressure stresses, ensuring leak-free operation and long-term reliability of the cooling system.