Recall 14V508 affects 35 2014 Nabi Brt and Lfw buses because the fuel filter can separate and stall the engine. Cummins installs the repair free.
Nabi is recalling 35 2014 Brt and Lfw transit buses because Fleetguard UFF-XT fuel filters on Cummins ISB or ISL engines can separate at the shell and nut plate. An unexpected engine stall increases crash risk, and the dealer repair will be free once available.
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What's wrong?
The fuel filter on 2014 Nabi Brt and Lfw transit buses cleans diesel fuel before it reaches the Cummins ISB or ISL engine. The recalled filter is the Fleetguard UFF-XT fuel filter, part number FF63009. Its shell and nut plate have to stay locked together so fuel stays contained and flows steadily to the engine.
In affected buses, the filter shell can separate from the fuel filter nut plate. That separation interrupts the fuel supply. When a diesel engine loses fuel flow, it stalls, which means the bus loses engine power instead of continuing to run normally.
There is no warning sign before failure. A driver is not expected to get a gradual symptom before the engine stall described in recall 14V508.
Who's affected?
Covers both 2014 Nabi Brt and Lfw buses, with each model tied to the fuel system.
| 2014 Nabi Brt | fuel system |
|---|---|
| 2014 Nabi Lfw | fuel system |
| Units affected | 35 |
The year and model narrow the scope, but the VIN decides. Check your VIN to confirm whether your specific bus is included.
What's the safety risk?
An unexpected engine stall can leave the driver without normal power at a critical moment and increase the risk of a crash. If the vehicle stalls or loses power, move it out of traffic when safe and arrange service. Repair will be free at any franchised Nabi dealer once available.
What should I do?
- Check your VIN to confirm your 2014 Nabi Brt or Lfw bus is included in this recall.
- Contact Nabi customer service at 1-256-831-4296 if you did not receive an owner notice, and reference recall number 14V508.
- Schedule the free Cummins fuel-filter replacement that fixes the Fleetguard filter shell separation linked to engine stall without warning.
- Bring any recall notice and service records to the Cummins service center.
- Keep drivers alert for sudden engine stall risk until the new fuel filter is installed.
What happens at the repair
Nabi is working with Cummins to notify owners. Once the repair is available, a Cummins service center will install a new fuel filter at no charge. The repair addresses Fleetguard UFF-XT fuel filters whose shell can separate from the fuel filter nut plate and lead to an engine stall. If your 2014 Brt or Lfw bus is included, ask Nabi or the service center to confirm the Cummins repair path and schedule the free fuel filter replacement.
Timeline
| August 19, 2014 | NHTSA published the recall |
|---|---|
| August 28, 2014 | Owner notification mailed |
Frequently asked questions
What is recall 14V508?
Recall 14V508 covers 35 2014 Nabi Brt and Lfw transit buses with Cummins ISB or ISL engines equipped with Fleetguard UFF-XT fuel filters. The filter shell can separate from the nut plate, causing the engine to stall without warning. Cummins service centers install a new fuel filter for free.
What should I do if my 2014 Nabi Brt or Lfw is on this recall?
Check your VIN to confirm your specific bus is included in recall 14V508. If it is, contact Nabi customer service at 1-256-831-4296 or Cummins customer service at 1-800-223-4583 to arrange the free fuel-filter replacement. Reference Nabi recall number 20144 when you call.
Does the recall repair cost anything?
No. Federal recall law requires the recall repair to be performed at no cost, and the remedy states that Cummins service centers will install a new fuel filter free of charge. Parts and labor are covered for buses included in recall 14V508.
What is the safety risk?
The safety risk is an unexpected engine stall. If the fuel filter shell separates from the nut plate, the engine can stall without warning, which increases crash risk. Confirm the VIN, then arrange the free fuel-filter replacement through Nabi or a Cummins service center.
What warning signs should I watch for?
There is no warning sign before the engine stalls. The recall summary says the fuel filter shell can separate from the nut plate and cause an engine stall without warning. That is why the VIN check and free fuel-filter replacement matter for included 2014 Nabi Brt and Lfw buses.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/14V508000 |
|---|---|
| Nabi customer service | 1-256-831-4296 |
| NHTSA recall # | 14V508 |
| NHTSA recall # (full) | 14V508000 |
Source documents
-
Download Owner Notification Letter (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 2, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →