Genuine OEM Volkswagen Coolant Hose, part number 057121052B. This hose is an integral component of the engine cooling system, responsible for transporting coolant to regulate engine temperature. It ensures efficient heat exchange and prevents overheating. Weighing approximately 0.017 kg, this hose is manufactured from durable, heat-resistant materials. Using a genuine OEM coolant hose guarantees correct routing geometry, proper fluid resistance, and a secure fit, which are vital for maintaining the integrity and efficiency of the cooling system.