Recall 21V334 covers 697 2016-2021 Rosenbauer Commander, Warrior, Avenger, and Commercial M2-106 vehicles for a fuel rail leak. Repair will be free at any franchised Rosenbauer dealer once available.
Rosenbauer is recalling 697 2016-2021 Avenger, Warrior, Commercial M2-106, and Commander vehicles because a sealing washer can fail to seat correctly in the high-pressure fuel rail assembly. Fuel can leak near an ignition source and increase fire risk; the Rosenbauer dealer repair will be free once the company makes it 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?
The high pressure fuel rail on 2016-2021 Rosenbauer Avenger, Warrior, Commercial M2-106, and Commander trucks feeds diesel fuel to the engine injectors. It holds fuel under pressure so each injector receives the right amount at the right time. A sealing washer at the rail end is supposed to sit flat in the pilot bore and keep that joint closed.
On the recalled trucks, the pilot bore in the fuel rail was undersized for the sealing washer. That prevents the washer from seating correctly. Without the right clamping load at the joint, the fuel rail assembly can leak while the engine is in service. A leak that sprays or mists diesel fuel near an ignition source increases the risk of fire.
An operator can see diesel fuel, smell diesel fuel, or notice the check engine lamp. Treat any fuel smell or visible fuel around the engine as a warning sign and keep the truck out of service until it is inspected.
Who's affected?
Covers Avenger, Warrior, Commercial M2-106, and Commander trucks from the 2016-2021 model years, all tied to the fuel system.
| 2016 Rosenbauer Avenger | fuel system |
|---|---|
| 2019 Rosenbauer Warrior | fuel system |
| 2021 Rosenbauer Avenger | fuel system |
| 2019 Rosenbauer Avenger | fuel system |
| 2021 Rosenbauer Warrior | fuel system |
| 2020 Rosenbauer Avenger | fuel system |
| 2019 Rosenbauer Commercial M2-106 | fuel system |
| 2016 Rosenbauer Commander | fuel system |
| 2017 Rosenbauer Commander | fuel system |
| 2018 Rosenbauer Commander | fuel system |
| 2019 Rosenbauer Commander | fuel system |
| 2020 Rosenbauer Warrior | fuel system |
| 2018 Rosenbauer Avenger | fuel system |
| 2017 Rosenbauer Avenger | fuel system |
| 2020 Rosenbauer Commander | fuel system |
| 2018 Rosenbauer Warrior | fuel system |
| 2017 Rosenbauer Warrior | fuel system |
| 2016 Rosenbauer Warrior | fuel system |
| 2021 Rosenbauer Commander | fuel system |
| Units affected | 697 |
| Field incidents | NHTSA has logged no field incidents to date. |
The year and model narrow the scope, but the VIN decides. Check your VIN to confirm whether your specific truck is included.
What's the safety risk?
A diesel fuel leak near an ignition source increases the risk of a fire. Watch for diesel fuel smell, visible fuel, or a check engine lamp, and stop operating the vehicle if those signs appear. Ask Rosenbauer for inspection guidance and schedule the repair when it opens. Repair will be free at any franchised Rosenbauer dealer once available.
What should I do?
- Check your VIN to confirm your 2016-2021 Rosenbauer Avenger, Warrior, Commercial M2-106, or Commander is included in this recall.
- Call Rosenbauer customer service at 1-651-462-1000 to ask when the free dealer inspection and fuel-rail repair is open for your VIN.
- Reference recall number 21V334 when you call Rosenbauer or speak with a franchised Rosenbauer dealer.
- Keep the vehicle away from ignition sources if a fuel leak is present, and ask Rosenbauer whether it should stay out of service until inspected.
- Bring the interim owner letter if you received one when Rosenbauer confirms the repair path for your VIN.
What happens at the repair
The final dealer repair is still under development. Once it opens, a Rosenbauer technician will inspect the high pressure fuel rail assembly and replace the rail if needed. Parts and labor will be free under the recall. Rosenbauer has a general reimbursement plan on file. If you already paid for a related fuel rail repair, contact Rosenbauer customer service at 1-651-462-1000 with documentation so the claim can be reviewed under that plan.
| Reimbursement | Reimbursement available |
|---|
Timeline
| May 11, 2021 | NHTSA published the recall |
|---|---|
| June 25, 2021 | Dealer notification began |
| June 25, 2021 | Interim owner notification (was planned for this date) |
| July 10, 2021 | Dealer notification ended |
| July 19, 2021 | Owner notification mailed |
Frequently asked questions
What is recall 21V334?
Recall 21V334 covers 697 2016-2021 Rosenbauer Avenger, Warrior, Commander, and 2019 Commercial M2-106 vehicles with a sealing washer problem in the high pressure fuel rail assembly. The washer can fail to seat in the pilot bore holes, allowing a fuel leak.
What should I do if my 2016-2021 Rosenbauer Avenger, Warrior, Commercial M2-106, or Commander is on this recall?
Check your VIN to confirm your specific vehicle is included in recall 21V334. If it is, contact a Rosenbauer dealer or Rosenbauer customer service at 1-651-462-1000 to arrange inspection. Dealers will replace the fuel rail when required, free of charge.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to provide the recall repair at no cost. Rosenbauer dealers will inspect the high pressure fuel rail assembly and replace the rail when required, free of charge.
What is the safety risk?
A fuel leak near an ignition source increases the risk of fire. This recall involves the high pressure fuel rail assembly, so confirm the VIN before continued service planning and ask Rosenbauer what operating guidance applies to your specific vehicle.
When were owners notified about recall 21V334?
Rosenbauer mailed interim owner notification letters on July 9, 2021. If you own one of these vehicles and never received a letter, check your VIN and call Rosenbauer customer service with recall number 21V334.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/21V334000 |
|---|---|
| Rosenbauer customer service | 1-651-462-1000 |
| NHTSA recall # | 21V334 |
| NHTSA recall # (full) | 21V334000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Recall Document (PDF) (PDF)
- Download Quarterly Report (PDF)
- Download Recall Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Owner Notice (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 23, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →