Genuine OEM Volkswagen Engine Coolant Hose, part number 5C0121058B. This flexible conduit is a vital part of the engine cooling system, responsible for circulating coolant between the engine and the radiator. It ensures efficient heat transfer, preventing engine overheating and maintaining optimal operating temperatures. Weighing 0.093 kg, this hose is constructed from durable, heat-resistant materials for long service life. Choosing genuine OEM ensures correct routing geometry, pressure resistance, and material compatibility with engine coolants.