Went out and looked at mine, a 2020 2500. All I see in that vicinity are a couple wire bundle runs and a few connectors; no components. From the looks of the OP's picture it would appear something flipped up in the narrow void and played havoc with the wiring and connectors by forceful disassembly.
Looks like the connector remains that "used" to hold the two dangling naked terminals. I believe that connector is attached to the frame with a Christmas tree hanger.Hard to tell for sure from your pic but it looks like you are at the back end of the DPF. It looks like it could be the egt probe at the back end of the dpf. Should be a threaded sensor in there. If thats there I can go crawl around under mine and try to get a better idea but thats the first thing that comes to mind.
There are two or three probes/sensors tucked up high and outta sight.No more EGT probe at the back of the DPF?
Yes sir, I'm curious where that guy goes. On my 14 there is an EGT probe at the back end of the DPF.
I’ve never tried to sell a catalytic converter but they say you can get cash for them. It’s easier to get under our trucks than low cars. It’s recommended to etch your License tag number on them. Not sure what if any good that will do. I hate a thief.Insurance claim and claim "everything", beer, tools and whatever else was taken. Assuming you have comprehensive coverage you can get everything fixed and replaced minus your deductible. Drugs are ruining our young and country for sure. Not defending druggies but it may have been yahoos that knew ½ what to take that would be sellable or they needed. Don't think druggies would be interested in exhaust cleaner fluid...
Either way it sucks. Hope you can file a claim and recoup some of your loss