Air Dam ?
The air dam on our Rams goes under the bumper rather than "inside" in the bumper. The plastic pieces that are inside the rectangular bumper openings are called "sight shields" by D/C. in their sales literature and bumper shields in their parts book. All are available at your nearest Mopar parts counter:
AIR DAM
p/n 5527 4811
SHIELD, Bumper
p/n 5507 6600 w/o Fog Lamps, Right
p/n 5507 6601 w/o Fog Lamps, Left
p/n 55076 786AB w/Fog Lamps, Right
p/n 55076 787AB w/Fog Lamps, Left