IK1500093
Service Bulletin/Repair Instructions
Cummins L9 EPA 17 Supplemental Fuel System Diagnostics - Racor Chassis Mounted Fuel Filter / Cummins fault 559
Vehicle report
Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
IK1500093
Cummins L9 EPA 17 Supplemental Fuel System Diagnostics - Racor Chassis Mounted Fuel Filter / Cummins fault 559
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.