Have had a review of some part numbers for these things, been some changes and it seems there are quite a few numbers floating around, Im pretty sure 433mhz is the freq, so may pay to check matches with places like
https://www.moparpartsgiant.com/part...Overland%204WD) just to see what Jeep tick off on ... of course RockAuto listings as well is a good cross reference .
It also seems some after market won't clone to the system without a tool while some will just connect up once driven...........
Just research as mine are still fine and at the prices they want replacing 4 wouldn't be a biggy on my job list...........