Recall 21V910 affects 34 2021-2022 Ferrara Inferno and Cinder emergency vehicles for a rear axle drive pinion fracture. Meritor repair is free.
Ferrara is recalling 34 2021-2022 Inferno and Cinder emergency vehicles because the rear axle drive pinion can fracture. A fractured pinion can contact the brake drop hose, unintentionally engage the parking brake or activate the brake lights, increasing crash risk; Ferrara dealers will complete the repair free of charge.
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What's wrong?
The rear axle drive pinion is the gear shaft inside the rear axle carrier on 2021-2022 Ferrara Inferno and Cinder emergency vehicles. It takes turning force from the driveline and feeds it into the rear axle gears, which then turn the rear wheels. The axle depends on that pinion staying intact under heavy load.
On the affected vehicles, the Meritor drive pinion was built with variation in the spline tooling geometry. The splines are the machined teeth that lock the shaft to the parts around it. When that shape is wrong, load concentrates in the pinion instead of spreading through the shaft as designed. The pinion can crack and fracture, leaving the rear axle unable to carry power normally.
There is no warning sign before failure. The first sign can be a drivetrain failure after the pinion has already broken, so owners should treat any rear axle noise, loss of drive, or air-line damage in that area as serious.
Who's affected?
Spans the Inferno and Cinder fire apparatus across the 2021 and 2022 model years, all tied to the drive axle.
| 2022 Ferrara Inferno | drive axle |
|---|---|
| 2022 Ferrara Cinder | drive axle |
| 2021 Ferrara Inferno | drive axle |
| 2021 Ferrara Cinder | drive axle |
| Units affected | 34 |
| Field incidents | NHTSA has logged 3 field incidents to date. |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether your specific truck is included.
What's the safety risk?
A fractured drive pinion can contact the brake drop hose, unintentionally engage the parking brake, or turn on the brake lights, increasing crash risk. There is no warning sign before the issue, so schedule the repair soon and have brake or parking brake behavior checked promptly. Repair is free at any franchised Ferrara dealer.
What should I do?
- Check your VIN to confirm your 2021-2022 Ferrara Inferno or Cinder is included in this recall.
- Contact a franchised Ferrara dealer to schedule the free drive-pinion inspection and replacement that addresses the fractured-pinion risk near the brake drop hose.
- Bring the recall notice if Ferrara mailed one. If not, reference recall number 21V910 when you call.
- Call Ferrara customer service at 1-800-443-9006 with questions about scheduling or vehicle movement before the repair.
- Drive cautiously until the repair is complete. Stop using the vehicle and call the dealer if the parking brake engages or the brake lights activate unexpectedly.
What happens at the repair
At the dealer, a Ferrara technician inspects the rear axle drive pinion and replaces it when the inspection shows replacement is needed. The recall covers the inspection, replacement part, and labor at no cost. Ferrara lists a general reimbursement plan for documented related repairs paid before the recall notice. If you paid out of pocket for a rear axle drive pinion repair tied to this defect, bring the repair order and payment proof to the service desk and ask how Ferrara handles the claim.
| Reimbursement | Reimbursement available |
|---|
Timeline
| November 19, 2021 | NHTSA published the recall |
|---|---|
| January 3, 2022 | Owner notification mailed |
| January 3, 2022 | Dealer notification began |
| January 7, 2022 | Dealer notification ended |
| January 10, 2022 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 21V910?
Recall 21V910 covers 34 2021-2022 Ferrara Inferno and Cinder emergency vehicles with a rear axle drive pinion that can fracture. If it fractures, the pinion can contact the brake drop hose and unintentionally engage the parking brake or activate the brake lights, increasing crash risk. Meritor will inspect and replace the drive pinion for free.
What should I do if my 2021-2022 Ferrara Inferno or Cinder is on this recall?
Check your VIN to confirm your specific emergency vehicle is included in recall 21V910. If it is, contact Ferrara customer service at 1-800-443-9006 or your Ferrara service contact to arrange the Meritor inspection. Reference recall 21V910 when you call. The inspection and needed drive pinion replacement are free.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost. For recall 21V910, Meritor will inspect the rear axle drive pinion and replace it, as necessary, free of charge. Keep the Ferrara recall number with your service paperwork.
What is the safety risk?
The safety risk is unintended braking behavior or brake light activation from a fractured rear axle drive pinion. The fractured pinion can contact the brake drop hose, unintentionally engage the parking brake, or activate the brake lights, increasing crash risk. Confirm the VIN and arrange the free inspection.
When were owners notified about recall 21V910?
Ferrara mailed owner notification letters on January 3, 2022. If you operate or maintain a 2021-2022 Ferrara Inferno or Cinder and never received a letter, check your VIN and call Ferrara customer service at 1-800-443-9006 with recall 21V910.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/21V910000 |
|---|---|
| Ferrara customer service | 1-800-443-9006 |
| NHTSA recall # | 21V910 |
| NHTSA recall # (full) | 21V910000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Quarterly Report (PDF)
- Download Recall Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 20, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →