Reviving an old thread here but just wanted to share my experience. The part # 68499020AA mentioned earlier in this thread is either incorrect, has changed since it was posted almost 2 years ago, or maybe I was just sent incorrectly packaged parts. I ordered part #
68499020AA from MyMoparParts and received a completely different style of attaching clip.
After doing some more research, I found another part # 68092697AA, which was the correct part # for my 2019 1500. The top Google search result for this part # pulls up a
generic, off-brand version on Amazon that is currently sold in a pack of 20 for $12, much cheaper than you can get them through an OEM Mopar parts source. These are a perfect replacement for those pesky, fragile clips that hold in the trim behind the fender flares.