it might look like number 17, its the black plastic plate that mounts with 4 pop nails on the bumper inside on the wheel arch. But picture is kind of unclear, it might look like on the picture its the little plate that is wielded on the chassis on each side, which this plastic plate is then mounted into again.

Is the part number 7079854? picture is kind of unclear to me.
thanks alot tho, might just saved me alot of money from buying a new bumper