What is this part called?

[10ga]

This is not mine but I'm looking for this part for my son's 4runner. His is a 2000 Sport, black in color and this part of the passenger flare and mud flap is missing. I'm sure there's one out there somewhere but I don't have a clue how to search for it. Any help would be appreciated.

 

[GhostRing]

A little roundabout, but show that pic to anyone parting out their T4R in the classifieds
and they may be able to hook you up. Worth a shot...!