Genuine OEM Audi Coolant Hose, part number 8K0819371K. This hose is a critical component of the engine cooling system, designed to transport coolant efficiently throughout the engine to regulate its temperature. It is positioned within the complex network of hoses that manage heat dissipation. Measuring approximately 0.47 meters in length and weighing 0.25 kg, it is engineered for precise fitment and durability. Choosing a genuine OEM hose ensures correct routing geometry, resistance to engine fluids, and long-term reliability, preventing leaks and maintaining cooling system integrity.