Genuine OEM Volkswagen Engine Coolant Hose, part number 7N0122109C. This vital component is responsible for carrying coolant to and from the engine, playing a critical role in maintaining proper operating temperatures. It connects to the expansion tank within the cooling system. Weighing 0.145 kg, this hose is engineered for durability and resistance to engine fluids. Using a genuine OEM coolant hose ensures precise fitment, leak-free operation, and long-term reliability under thermal stress.