Genuine OEM Volkswagen Coolant Hose with Quick Release Coupling, part number 4M0122101DG. This hose is a vital part of the engine cooling system, responsible for transporting coolant between components. It features an integrated quick release coupling for efficient installation and maintenance. Weighing approximately 0.29 kg, it is designed to withstand high temperatures and pressures. Using a genuine OEM hose ensures the correct material flexibility, resistance to coolant chemicals, and the reliability of the quick release mechanism, preventing leaks and maintaining cooling system efficiency.