Genuine OEM Volkswagen Charging Coolant Hose, part number 1S0121109H. This hose is specifically designed to transport coolant within the engine's cooling system, particularly for the charging system, ensuring efficient temperature regulation. It is an integral part of the complex network of hoses that manage engine heat. Weighing 0.089 kg and measuring 0.235m in length, this hose is engineered for durability and resistance to engine fluids. Genuine OEM hoses provide the correct routing geometry and material composition for long-lasting, leak-free performance.