Genuine OEM Volkswagen Coolant Hose, part number 7L6121058R. This hose is a vital component of the engine cooling system, responsible for transporting coolant between various engine components to regulate temperature and prevent overheating. Made from durable rubber, it is designed to withstand high temperatures and pressures. Choosing a genuine OEM coolant hose ensures the correct routing geometry, material resistance to coolant chemicals, and leak-free connections for reliable engine thermal management.