Recall 10V348 affects 1,328 2011 Workhorse R26 and W22 trucks for deteriorating fuel-fill cap hoses that leak fuel. Free repair at a franchised Workhorse dealer.
Workhorse is recalling 1,328 2011 R26 and W22 trucks because the fuel-fill cap assemblies on the unused side of the dual-fill gasoline tank were built with hose material that can deteriorate and leak fuel. A fuel leak raises the risk of fire, and the dealer repair will be free once available.
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What's wrong?
The 2011 Workhorse R26 and W22 use a dual-fill gasoline fuel tank, with fill hardware on more than one side of the tank. The fuel-fill cap assembly seals the unused side so gasoline vapor and liquid fuel stay inside the tank during driving, fueling, and storage.
In affected trucks, the hose material in that cap assembly did not meet the design specification. During normal use, the hose deteriorates instead of staying stable against fuel exposure and movement around the tank. Once the hose breaks down, the seal at the unused fill side no longer holds as designed, and gasoline can leak from the tank area.
There is no warning sign before failure. The recall filing does not list an earlier dashboard light, sound, smell, or drivability symptom that tells an owner the hose has started to deteriorate.
Who's affected?
Covers the R26 and W22 in the 2011 model year, with the fuel tank assembly listed as the shared component.
| 2011 Workhorse R26 | fuel system |
|---|---|
| 2011 Workhorse W22 | fuel system |
| Units affected | 1,328 |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether this recall applies to your specific vehicle.
What's the safety risk?
A fuel leak raises the risk of fire. A fire can cause property damage, personal injury, or death. Confirm whether your VIN is included before scheduling service, and arrange the dealer repair when it opens. Repair will be free at any franchised Workhorse dealer once available.
What should I do?
- Check your VIN to confirm your 2011 Workhorse R26 or W22 is included in this recall.
- Contact Workhorse customer service at 1-260-461-1890 to confirm repair timing for your VIN.
- Reference recall number 10V348 when you call or speak with a franchised Workhorse dealer.
- Schedule the free fuel-fill-cap assembly replacement that fixes the hose-material defect behind the fuel-leak risk.
- Avoid parking near open flame or other ignition sources until the fuel-fill-cap repair is complete.
What happens at the repair
At the dealer, a Workhorse technician replaces the original fuel fill cap assemblies with assemblies built with hose material that meets design specifications. The work addresses the cap assemblies used to seal the unused side of the dual fill gasoline fuel tank, where the original hose material can deteriorate and allow fuel leaks. The dealer repair will be free once available, with parts and labor covered under the recall.
Timeline
| July 27, 2010 | NHTSA published the recall |
|---|---|
| October 22, 2010 | Owner notification mailed |
Frequently asked questions
What is recall 10V348?
Recall 10V348 covers 1,328 2011 Workhorse R26 and W22 trucks with fuel-fill cap assemblies on the unused side of the dual-fill gasoline tank. The hose material can deteriorate and leak fuel. A fuel leak increases fire risk. Dealers replace the cap assemblies for free.
What should I do if my 2011 Workhorse R26 or W22 is on this recall?
Check your VIN to confirm your specific truck is included in recall 10V348. If it is, contact a franchised Workhorse dealer to schedule replacement of the affected fuel-fill cap assemblies. Reference recall number 10V348 when you call. The repair is free.
Is the recall repair free?
Yes. Navistar's remedy states that dealers will replace the original fuel-fill cap assemblies with assemblies using hose material that meets design specifications, free of charge. Federal recall law also requires the manufacturer to complete the recall repair at no cost.
What is the safety risk?
The safety risk is a gasoline fuel leak near the tank assembly. NHTSA campaign 10V348 says a fuel leak increases the risk of a fire, with potential property damage, personal injury, or death. The repair path is replacement of the affected fuel-fill cap assemblies.
What if I bought my Workhorse R26 or W22 used?
The free recall repair still applies. Recall eligibility follows the VIN, not the current owner's purchase history. Check your VIN to confirm whether your 2011 Workhorse R26 or W22 is included, then call a franchised Workhorse dealer with recall number 10V348.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/10V348000 |
|---|---|
| Workhorse customer service | 1-260-461-1890 |
| NHTSA recall # | 10V348 |
| NHTSA recall # (full) | 10V348000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Recall Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Owner Notice (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 3, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →