Genuine OEM Volkswagen Coolant Hose, part number 3D1260710B. This hose is a critical component of the engine's cooling system, designed to transport coolant between the engine and the radiator. It ensures proper circulation of coolant to maintain optimal engine operating temperature and prevent overheating. Located within the engine bay, this hose is specifically engineered for durability and resistance to heat and pressure. Genuine OEM hoses are constructed from high-quality materials to prevent leaks and ensure a long service life.