Recall 14V521 covers 231 2014 Gillig Low Floor transit buses with separating fuel filters that stall engines. Cummins service centers replace them free.
Gillig is recalling 231 2014 Low Floor transit buses because Fleetguard UFF-XT fuel filters on Cummins ISB or ISL engines can separate at the shell and nut plate. An unexpected stall raises crash risk, and the Gillig dealer repair will be free once available.
Does this recall apply to your specific vehicle?
The official, free per-VIN recall check is run by NHTSA. Enter your VIN and we'll forward you directly — and add you to a free watchlist so you hear about new recalls for your vehicle.
Check my VIN at NHTSARecallNotify doesn't check your VIN — NHTSA's official tool does. We use your email only to alert you to new recalls.
Watch this vehicle for recalls
Add it to your free watchlist and we will alert you as new federal recalls are posted for your year, make and model. New-recall alerts are rolling out now.
You are on the watchlist.
We will email you as new federal recalls are posted for your vehicle.
What's wrong?
On the 2014 Gillig Low Floor transit bus, the Cummins ISB or ISL engine uses a Fleetguard UFF-XT fuel filter, part number FF63009, in the diesel fuel system. The filter's job is to clean fuel before it reaches the engine, so the injectors receive fuel without damaging debris.
On affected buses, the filter shell can separate from the fuel filter nut plate. That joint is part of the filter body, and when it comes apart, the fuel system can no longer feed the engine the way it was designed to. The result is an engine stall while the bus is in service.
Gillig reported no warning sign before this failure. There is no warning sign before failure, so operators should treat a sudden stall on an affected Low Floor bus as related until the recall repair is confirmed.
Who's affected?
| 2014 Gillig Low Floor | fuel system |
|---|---|
| Units affected | 231 |
Not every 2014 Gillig Low Floor bus is on the list. Check your VIN to confirm whether your specific bus is included.
What's the safety risk?
An unexpected engine stall increases crash risk because the driver loses engine power while the vehicle is moving. There is no warning sign before failure. If your VIN is included, schedule the recall work before regular service use and call Gillig if the bus stalls. Repair will be free at any franchised Gillig dealer once available.
What should I do?
- Check your VIN to confirm your 2014 Gillig Low Floor is included in this recall.
- Review the Gillig owner notice sent for this recall, or contact Gillig if the bus owner did not receive one.
- Ask Gillig where to get the free Cummins service-center fuel-filter replacement that fixes the filter-shell separation that can stall the engine without warning.
- Reference recall number 14V521 when you call, and bring the recall notice to the service appointment if you have it.
- Limit operation until the repair is complete. If the engine stalls or the bus loses power, move out of traffic when safe and arrange service.
What happens at the repair
The listed remedy is fuel filter replacement. At the service center, the existing Fleetguard fuel filter is removed and replaced with the corrected fuel filter. Gillig says Cummins service centers handle the work on its behalf. Because the remedy status is not listed as available in this record, confirm the current repair opening before arranging service. Once available, parts and labor are free under the recall.
Timeline
| August 28, 2014 | NHTSA published the recall |
|---|---|
| September 16, 2014 | Owner notification mailed |
| July 27, 2015 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| July 27, 2015 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 14V521?
Recall 14V521 covers 231 2014 Gillig Low Floor transit buses with Cummins ISB or ISL engines equipped with Fleetguard UFF-XT fuel filters, part number FF63009. The filter shell can separate from the nut plate and stall the engine without warning. Cummins service centers will replace the fuel filter for free.
What should I do if my 2014 Gillig Low Floor is on this recall?
Check your VIN to confirm your specific bus is included in recall 14V521. If it is, contact Gillig at 1-510-785-1500 or Cummins customer service at 1-812-377-3713 to arrange the fuel filter replacement. Reference recall 14V521 when you call.
Is the recall repair free?
Yes. Federal recall law requires the defect repair to be performed at no cost, and the remedy says Cummins service centers will replace the fuel filter free of charge on affected 2014 Gillig Low Floor buses.
What warning signs should I watch for?
There is no warning sign before the engine stalls. The recall involves a fuel filter shell that can separate from the nut plate, stopping fuel flow and causing the engine to stall unexpectedly. Confirm the VIN and arrange the free filter replacement if the bus is included.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/14V521000 |
|---|---|
| Gillig customer service | 1-510-785-1500 |
| NHTSA recall # | 14V521 |
| NHTSA recall # (full) | 14V521000 |
Source documents
-
Download Misc. Document (PDF) - Download Recall Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Recall Report (PDF)
- Download Quarterly Report (PDF)
- Download Defect / Noncompliance Notice (PDF) (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on June 1, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →