Genuine OEM Audi Compressor Intercooler O-Ring Seal, part number 06E145723H. This O-ring is a crucial sealing component for the compressor intercooler assembly. It creates a tight, leak-free seal, which is essential for maintaining proper boost pressure and preventing air leaks in the intake system. Weighing approximately 0.0035 kg, this small but vital seal ensures optimal engine performance. Using a genuine OEM O-ring guarantees the correct material compound and precise dimensions for resistance to high temperatures and pressures, ensuring long-term sealing integrity.