Recall 22V378 covers 1,316 2019-2022 Oshkosh S-Series concrete mixers for incorrectly installed alternator cable clamps. Repair is free at an Oshkosh service center.
Oshkosh is recalling 1,316 2019-2022 S-Series concrete mixers because incorrectly installed alternator electrical cable clamps can rub against the vehicle frame or a hydraulic hose and damage the cables. Damaged alternator cables can increase the risk of a fire, and Oshkosh dealers will complete the repair free of charge.
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What's wrong?
The alternator cable clamps on 2019-2022 Oshkosh S-Series concrete mixers hold the alternator electrical cables in the correct route. Those cables carry charging current between the alternator and the rest of the electrical system. The clamps are supposed to keep the cables clear of the frame and the hydraulic hose for the hood assembly.
On affected mixers, the clamps were installed in an orientation that leaves too little clearance. Normal vibration then lets the clamp or cable rub against the frame or hydraulic hose. That rubbing wears through insulation on the alternator cables, a problem called chafing. Once the cable is damaged, electrical heat or arcing can create a thermal event or fire.
There is no warning sign before failure. An owner or service technician should not expect a dashboard light, noise, or change in mixer operation before the cable damage becomes unsafe.
Who's affected?
Spans 4 model years for the S-Series, all tied to the same alternator cable clamp.
| 2019 Oshkosh S-Series | electrical system |
|---|---|
| 2020 Oshkosh S-Series | electrical system |
| 2021 Oshkosh S-Series | electrical system |
| 2022 Oshkosh S-Series | electrical system |
| Units affected | 1,316 |
| Field incidents | NHTSA has logged 1 field incident to date. |
A matching year and model does not confirm inclusion. Check your VIN to confirm whether your specific truck is included.
What's the safety risk?
Damaged alternator electrical cables can increase the risk of a fire. Schedule the inspection and cable securement soon, and stop using the vehicle if damaged wiring is found before repair. Repair is free at any franchised Oshkosh dealer.
What should I do?
- Check your VIN to confirm your 2019-2022 Oshkosh S-Series is included in this recall.
- Contact an Oshkosh service center to schedule the free alternator-cable clamp inspection and repositioning that keeps the cables from rubbing the frame or hydraulic hose.
- Follow Oshkosh's instructions if you perform the repair yourself: inspect the wiring, reposition the clamps, and secure the alternator cables.
- Bring the recall notice if you have it, and reference recall number 22V378 when you call.
- Call Oshkosh customer service at 1-888-686-7278 with questions about service-center repair or owner-performed repair.
What happens at the repair
At an Oshkosh service center, an Oshkosh technician inspects the alternator wiring, repositions the clamps, and secures the cables so they do not rub against the frame or hydraulic hose. Oshkosh also provides instructions if the owner performs the inspection and repair. The recall repair is free either way. Oshkosh has a general reimbursement plan on file for this campaign. If you already paid out of pocket for this repair, contact Oshkosh customer service at 1-888-686-7278 and ask how to submit repair documentation under that plan.
| Reimbursement | Reimbursement available |
|---|
Timeline
| May 26, 2022 | NHTSA published the recall |
|---|---|
| June 23, 2022 | Owner notification mailed |
| June 23, 2022 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 22V378?
Recall 22V378 covers 1,316 2019-2022 Oshkosh S-Series concrete mixers with alternator cable clamps installed in the wrong position. The clamps can rub against the frame or a hydraulic hose, damage the cables, and increase fire risk.
What should I do if my 2019-2022 Oshkosh S-Series is on this recall?
Check your VIN to confirm your specific mixer is included in recall 22V378. If it is, follow Oshkosh's inspection instructions, reposition the clamps, and secure the cables, or contact an Oshkosh service center at 1-888-686-7278 for the free repair.
Does the recall repair cost anything?
No. Federal recall law requires the safety recall remedy to be completed at no cost. Oshkosh says the inspection, clamp repositioning, and cable securing work can be done by the owner or by an Oshkosh service center free of charge.
What is the safety risk?
The safety risk is fire. If the alternator electrical cables are damaged by contact with the frame or hydraulic hose, the damaged cables can increase the risk of a vehicle fire. Complete the free inspection and cable securing work before continued use.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/22V378000 |
|---|---|
| Oshkosh customer service | 1-888-686-7278 |
| NHTSA recall # | 22V378 |
| NHTSA recall # (full) | 22V378000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Quarterly Report (PDF)
- Download Owner Notification Letter (PDF)
- Download Recall Report (PDF)
- Download Recall Investigation Document (PDF) (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 →