APM03642 - DOM 15 June 2017.
There does not seem to be a Cat Reman transmission available for the 160-2196 but I suggest you confirm that with the dealer. 160-2196 is a P/N has been around for probably 25 years now and if there was anything majorly wrong with it there would have been an update. There hasn't, so that tells you a lot.
How many hours is on the machine right now.? Can't be that many.
These transmissions normally don't explode if they fail, they lose one or more clutches (burned), or have electrical problems associated with the control valve. They aren't that difficult to repair.
EDIT: The last changes of any sort to the transmission were in 2007, so what was in the machine as-built is the latest available specfication .