2015 Ram 3500 Tradesman Diesel SRW

Here is a link to the original window sticker. 79K on a 2015 is not low mileage. Truck could be 3.75 to 2.75 years old.

https://www.chrysler.com/hostd/windowsticker/getWindowStickerPdf.do?vin=3C63R3CL2FG704223

Sure looks nice.

This is the truck.

https://www.smithmtr.com/used/Ram/2015-Ram-3500-for-sale-Washington-NJ-30eef5300a0e0aea656258b35d615f8d.htm?searchDepth=3:3

Tradeaman is their bottom line truck. Vinyl floor mats, vinyl bench seat, missing almost everything unless the OE added stuff to make it more comfortable. Price is decent it seems like. Is it, or was it a business truck? Service history? All emission stuff in tact? All recalls performed?

Look for a log of oil, fuel filter, axle, transfer case changes. The oil and fuel filters get reset in the evic but I log everything in the back of my owners manual. There may be recalls that were done or need to be done. Latest is water pump, shift mechanism pin. Earlier may have been steering bracket, exhaust parts, re flashes and possibly seat belt?

I'd look closely at the coolant. It may look orangish in the reservoir but it's actually a purple color. It uses a special coolant and the diesel supplement warns about using the wrong stuff. I dont remember right off it's oat or hoat. Use the right one. Download the 2015 diesel supplement for maintenance intervals. Aisin trans is more often service than 68rfe

Sounds like a great truck and low mileage.
I would just make sure no one screwed around with the emissions stuff.