Genuine OEM Volkswagen Coolant Hose, part number 03N121060H. This hose is a vital component of the engine cooling system, responsible for transporting coolant between various engine components to maintain optimal operating temperature. It is positioned within the engine bay, connecting parts of the cooling circuit. Weighing approximately 0.031 kg and measuring 0.1 meters in length, this genuine OEM hose ensures correct routing geometry, material composition, and resistance to engine fluids and temperatures, preventing leaks and maintaining cooling system integrity.