Genuine OEM Audi Engine Vacuum Hose, part number 0P2131611J. This flexible hose is essential for carrying vacuum pressure to various engine components, playing a critical role in the engine's control systems. Positioned within the engine bay, it connects different vacuum-actuated parts. Weighing approximately 0.02 kg, this hose is designed for precise routing and connection. Genuine OEM hoses ensure the correct material composition, internal diameter, and resistance to engine fluids and temperatures, preventing leaks and maintaining optimal engine performance.