22+ OEM Tonneau cover parts

Looking at purchasing a second hand OEM tonneau cover. Can you purchase replacements for the foam block fillers that go under the rails near the cab? Looking for these ones:

 

I would go to a dealership parts department and see if they are able to find a part number for you...

All the information that I have available does not have any part numbers for the individual parts included with the tonneau cover...

 

I wouldn’t worry about the foam. My dealer didn’t bother putting them back on after the recall fix. I think it’s meant to keep water out. If you are set on using the foam you can possibly use a piece of sponge. It just might do a better job.

 

Realtruck .com has a upgrade kit for the backflip mx4 for $19.99 it looks like it may have the block your looking for in the kit

 

Thank you, appreciate it all. I was able to get the blocks from the original seller, hoping to be able to use some heat to re-stick them, or use some double sided tape. I may use the real truck kit if that won’t work.