Genuine OEM Volkswagen Engine Coolant Hose, part number 1K0122051EP. This essential component is part of the engine cooling system, responsible for circulating coolant between the radiator and the engine to maintain optimal operating temperatures. It is positioned to connect the radiator to various engine cooling passages. Constructed from durable, heat-resistant rubber, this hose weighs approximately 0.579 kg and is designed to withstand high temperatures and pressures. Using a genuine OEM coolant hose ensures precise routing, proper sealing, and resistance to thermal cycling and chemical degradation, preventing leaks and maintaining engine health.