Genuine OEM Volkswagen Sealing Ring, part number 04L131120. This component plays a crucial role in the air intake system, providing a tight seal between mating surfaces to prevent air leaks and ensure accurate air metering. It is typically found securing connections within the intake manifold or air ducting. Constructed from a durable, flexible polymer, this ring maintains its sealing properties under varying engine conditions. Using a genuine OEM sealing ring guarantees the correct material composition, precise dimensions, and long-term resilience against temperature and pressure changes, crucial for maintaining engine efficiency and preventing unmetered air entry.