Fortunately, that changed when some friends of ours brought their ultra-unique Jeep XJ with the mighty 4BT Cummins out for a fuel system update. Though it already had an older
FASS Fuel System, Jarrett and his son wanted the latest and greatest version—so we installed a
Titanium Signature Series Fuel System with our brand-new
Single Bolt Fuel Sump.
With a brand-new fuel system and sump installed, this XJ is ready for thousands of miles of daily driver duty! We’d like to extend a HUGE thank you to our friends for bringing it out and allowing us to work on it.

If you’ve got a diesel swap planned, give us a shout! We have an extensive catalog of complete fuel systems for Cummins, Duramax, Powerstroke, and many more—there’s no diesel project we can’t fuel!
