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.
SF-449-A
DAIMLER TRUCKS: FUEL LINE AND AIR COMPRESSOR INTAKE TUBE WILL BE INSPECTED, REROUTED AND/OR REPLACED, IF NECESSARY, DUE TO ENGINE MOUNTING CLIP AND AIR COMPRESSOR INTAKE TUBE MAYBE INTERFERE WITH BY CERTAIN FUEL LINES. *PE
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.