If you're looking at a place where their listing for the ACDelco parts gives RPO codes, the RPO code for the Diesel hub/bearing/brake/wheel package is J60. (J67 is gasser with 4 discs and J93 is gasser with rear drums.)
Another good way to find them if you're looking for aftermarket options for most of the parts where the Diesel part differs from the gas Cruze (other than powertrain and emissions, of course) is to search for the part for the Buick Verano, since it uses the same chassis as the Cruze and has the J60 package on all trims. (The exception is the shocks/struts/springs. The Verano and gas Cruze parts will bolt onto the Diesel, but they're not properly tuned for the 400 extra pounds in the Diesel front end. Most of the aftermarket parts don't pay attention to this difference and they just list the same part for all of them.)
These are the ones I'm looking at, since I'm getting a hum from the right front that I can't tell yet if it is tire noise as the tread gets low or if it's the bearing starting to go.
Best Wheel Hubs for 2014 Buick Verano | Part Finder | Detroit Axle I did a complete steering and front suspension replacement on my Jeep using Detroit Axle parts, and I've been very satisfied with them.