Genuine OEM Volkswagen Coolant Hose, part number 2Q0122051BA. This hose transports coolant to regulate engine temperature, preventing overheating and ensuring engine longevity. It is an integral part of the engine cooling system. Weighing 0.38 kg and measuring 0.45 m in length, this genuine OEM hose is manufactured from high-quality, heat-resistant materials to ensure correct routing geometry and fluid resistance under extreme engine conditions.