Genuine OEM Audi Engine Coolant Hose, part number 059121104A. This hose is responsible for transporting coolant throughout the engine cooling system, which is essential for regulating engine temperature and preventing overheating. It is a critical component within the engine bay. Weighing approximately 0.026 kg and made from durable EPDM rubber, it ensures reliable performance. Using a genuine OEM hose guarantees the correct routing geometry, material resistance to heat and coolants, and factory-specified pressure ratings for a leak-free and long-lasting cooling system.