Genuine OEM Audi Air Pipe O-Ring, part number 8K0145117C. This sealing ring provides a critical airtight seal for connections within the air intake or boost system, preventing pressure leaks. It is typically found at the junction of an air pipe and a component like an intercooler or turbocharger. Weighing 0.031 kg, this O-ring is designed for precise fitment and durability. Using a genuine OEM O-ring ensures proper sealing integrity and maintains optimal engine performance.