Genuine OEM Audi Coolant Hose with Coupling, part number 8K0121055E. This hose is a vital component in the engine cooling system, designed to connect various cooling system components for efficient fluid transfer. It features an integrated coupling for a secure and leak-proof connection. Weighing 0.3608 kg and measuring 0.46 meters in length, this genuine OEM hose guarantees precise routing, material durability, and a factory-grade seal, critical for maintaining optimal engine operating temperatures.