Genuine OEM Audi Coolant Hose with Coupling, part number 2K0122051A. This hose is designed to facilitate efficient coolant flow within the engine cooling system, featuring a quick connection for secure and leak-free installation. It plays a crucial role in maintaining optimal engine operating temperatures. Weighing approximately 0.379 kg and measuring 0.444 m in length, this component is engineered for precise fitment and robust performance. Using genuine OEM coolant hoses ensures correct routing geometry, material resistance to high temperatures and pressures, and reliable sealing, which is vital for preventing leaks and maintaining cooling system integrity.