Genuine OEM Audi Coolant Hose, part number 4M0122902P. This flexible hose is a vital component of the engine cooling system, responsible for transporting coolant between the radiator and other engine components to maintain optimal operating temperature. Weighing 0.627 kg, it is designed for durability and resistance to heat and pressure. Using a genuine OEM coolant hose guarantees the correct material composition, precise dimensions, and proper routing geometry, preventing leaks and ensuring the longevity of the cooling system.