You will not find that part under the hood of your truck. That is for a earlier model year.
The module on your truck is inside the distributor.
Did they happen to drive down the road with the fuel pressure gauge hooked up to see if just prior to it cutting out you lost pressure? You could have one or more of several known issues.
Bad grounds, poor connections, failing dizzy, etc. There was also a TSB from Dodge in those years detailing problems with the rubber fuel hose inside the tank becoming cracked and porous.