Genuine OEM Volkswagen Engine Coolant Hose, part number 7T0121053C. This hose is designed to circulate engine coolant, playing a critical role in maintaining the engine's optimal operating temperature. It ensures efficient heat transfer and prevents overheating or undercooling of engine components. Weighing 0.457 kg and measuring 0.515 m in length, it is engineered for precise fitment and durability. Choosing a genuine OEM coolant hose guarantees correct material resistance to heat and chemicals, precise routing geometry, and reliable sealing, crucial for the integrity of the cooling system.