Genuine OEM Volkswagen Coolant Hose, part number 7E0121086BC. This flexible hose is a vital part of the engine cooling system, responsible for transporting coolant efficiently between different engine components to maintain optimal operating temperatures. Weighing 0.154 kg and measuring 0.25m in length, it is designed for precise routing and connection within the cooling system. Using a genuine OEM coolant hose ensures resistance to extreme temperatures and pressures, preventing leaks and maintaining the integrity of the engine's thermal management.