Genuine OEM Volkswagen Coolant Hose, part number 5N0121157J. This hose is an integral part of the engine's cooling system, responsible for transporting coolant efficiently between various engine components. It is engineered to withstand the demanding conditions of high temperatures and pressures found in the cooling circuit. Weighing approximately 0.199 kg, this hose is made from durable, flexible, and heat-resistant materials. Using a genuine OEM coolant hose guarantees precise fitment, optimal flow, and resistance to chemical degradation, preventing leaks and ensuring the long-term reliability of the engine cooling system.