Genuine OEM Audi Engine Vacuum Hose, part number 8K0820620B. This critical component is responsible for transferring vacuum pressure within the engine system, enabling the proper operation of various engine-driven accessories and control systems. It is an integral part of the engine's vacuum network. Measuring approximately 0.5m in length, this hose is constructed from durable, flexible materials designed to withstand engine bay temperatures and pressures. Using a genuine OEM vacuum hose ensures correct routing geometry, material integrity, and precise pressure transfer, vital for maintaining engine efficiency and emissions compliance.