Genuine OEM Volkswagen Coolant Hose with Quick Coupling, part number 2Q0121156B. This hose is a critical component of the engine cooling system, responsible for transporting coolant to maintain optimal engine operating temperatures. It features a quick coupling for secure and efficient connection. Weighing 0.341 kg and measuring 0.42 meters in length, this hose is engineered for durability and precise routing. Choosing a genuine OEM coolant hose ensures correct material composition, pressure resistance, and exact routing geometry, preventing leaks and ensuring reliable engine cooling.