Genuine OEM Volkswagen Radiator Upper Hose, part number 1C0122101AR. This hose carries hot coolant from the engine to the radiator, initiating the cooling process. It is positioned at the upper inlet of the radiator. This durable rubber hose features an integrated plastic quick-connect fitting, weighs 0.462 kg, and measures 0.42 m in length. Genuine OEM hoses guarantee precise fitment, correct internal diameter for optimal flow, and resistance to high temperatures and pressures, preventing leaks and maintaining cooling system integrity.