Genuine OEM Volkswagen Engine Coolant Hose, part number 1EA121051S. This hose is a vital part of the engine cooling system, responsible for circulating coolant between the engine and radiator to maintain optimal operating temperature. It connects directly to the radiator. Weighing 0.3294 kg, this hose is constructed from durable, heat-resistant materials. Using genuine OEM coolant hoses ensures proper fit, leak-free connections, and resistance to extreme temperatures and coolant chemicals for long-term reliability.