Vehicle recall 14V669000 · October 24, 2014
2015 Thomas Built Buses SAF-T-Liner HDX
The Cummins ISB or ISL engines in these vehicles may have been equipped with Fleetguard UFF-XT fuel filters, part number FF63009, whose filter shell may separate from the fuel…
Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.
- Summary
- Daimler Trucks North America LLC (DTNA) is recalling certain model year 2015 Thomas Built Buses Saf-t-liner school buses manufactured May 2, 2014, to July 31, 2015. The Cummins ISB or ISL engines in these vehicles may have been equipped with Fleetguard UFF-XT fuel filters, part number FF63009, whose filter shell may separate from the fuel filter nut plate causing the engine to stall without warning.
- Consequence
- If the engine stalls unexpectedly there is an increased risk of a crash.
- Remedy
- Cummins has notified owners on behalf of DTNA, and dealers will replace the fuel filter with a non-defective one, free of charge. The recall began in late September 2014. Owners may contact DTNA customer service at 1-800-745-8000 or Cummins customer service at 1-800-223-4583. DTNA's number for this recall is FL-664.
- Notes
- Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Recall details
- NHTSA campaign
- 14V669000
- Reported to NHTSA
- October 24, 2014
- Filed by
- Daimler Trucks North America LLC
- Manufacturer campaign
- FL-664
- Owner notification
- September 29, 2014
- Vehicles potentially affected
- 133
- Initiated by
- the manufacturer
- Components
- Fuel system, diesel
Vehicles covered
As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.
Has your Thomas Built Buses been repaired?
Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.
NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A Thomas Built Buses dealer can also check your VIN. Recall repairs are free.