Genuine OEM Audi Fuel Injector Seat Insert, part number 06B133555H. This insert is crucial for providing a precise and stable seating surface for the fuel injector, ensuring optimal spray pattern and preventing fuel leaks. It is typically installed in the intake manifold or cylinder head. Weighing 0.006 kg, this insert is manufactured to exact factory tolerances. Choosing a genuine OEM insert guarantees proper fuel system sealing and performance, critical for engine efficiency and longevity.