Would anybody mind helping me out with doing some research?

I have a 2018 Cab and Chassis and want an engine serial number for a 2018 pickup.

My brother works, and he has access to Cummins reps and information.

He can plug in the serial number and compare parts to my Cab and Chassis engine.

I'm doing this to determine what is genuinely different about a Cab and Chassis compared to a standard pickup engine, instead of random internet strangers saying "this and that" is different.