Recall 21V826 affects 580 2019-2021 Doosan Portable Power generator and compressor trailers for loose lug nuts. Do not drive or tow. Free dealer repair.
Improperly tightened lug nuts can make the trailer unstable, and a tire can come off, increasing crash risk. Do not drive or tow the trailer until the lug nuts are tightened. If the trailer has to move, ask Doosan Portable Power about safe transport. Repair is free at any franchised Doosan Portable Power dealer.
Doosan Portable Power is recalling 580 2019-2021 Mobile Generator and Air Compressor trailers because the recall concerns improperly tightened wheel lug nuts. Do not drive or tow the unit until a Doosan Portable Power dealer completes the free repair, since loose lug nuts can cause loss of trailer stability or let a tire fall off.
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What's wrong?
The wheel lug nuts on 2019-2021 Doosan Portable Power Mobile Generator and Air Compressor units fasten each wheel to the hub while the unit is being towed. They are supposed to be tightened to a set torque, which is the clamping force that keeps the wheel seated against the hub. When that force is correct, the wheel stays secure through road vibration and normal towing loads.
On affected units, the lug nuts were inadequately torqued during production installation. That means the nuts were not tightened enough to hold the wheel with the intended clamping force. As the compressor or generator is towed, vibration and load can loosen the wheel further. In reported cases, wheels came off portable air compressors and mobile generators while being towed.
There is no warning sign before failure. Before towing, the lug nuts need to be checked and properly torqued, and any damage from loose lug nuts needs to be repaired.
Who's affected?
Covers 2 towable equipment types across the 2019, 2020, and 2021 model years, with wheel hardware and wheel fastener components in scope.
| 2020 Doosan Portable Power Mobile Generator | wheel fastener (lug, nut, bolt, or stud) |
|---|---|
| 2020 Doosan Portable Power Mobile Generator | wheel hardware |
| 2020 Doosan Portable Power Air Compressor | wheel fastener (lug, nut, bolt, or stud) |
| 2020 Doosan Portable Power Air Compressor | wheel hardware |
| 2021 Doosan Portable Power Mobile Generator | wheel fastener (lug, nut, bolt, or stud) |
| 2021 Doosan Portable Power Mobile Generator | wheel hardware |
| 2021 Doosan Portable Power Air Compressor | wheel fastener (lug, nut, bolt, or stud) |
| 2021 Doosan Portable Power Air Compressor | wheel hardware |
| 2019 Doosan Portable Power Air Compressor | wheel fastener (lug, nut, bolt, or stud) |
| 2019 Doosan Portable Power Air Compressor | wheel hardware |
| 2019 Doosan Portable Power Mobile Generator | wheel fastener (lug, nut, bolt, or stud) |
| 2019 Doosan Portable Power Mobile Generator | wheel hardware |
| Units affected | 580 |
| Field incidents | NHTSA has logged 4 field incidents to date. |
The year and model narrow the scope, but the VIN decides. Check your VIN to confirm whether your specific trailer is included.
What's the safety risk?
Improperly tightened lug nuts can make the trailer unstable, and a tire can come off, increasing crash risk. Do not drive or tow the trailer until the lug nuts are tightened. If the trailer has to move, ask Doosan Portable Power about safe transport. Repair is free at any franchised Doosan Portable Power dealer.
What should I do?
- Check your VIN to confirm your 2019-2021 Doosan Portable Power Mobile Generator or Air Compressor is included in this recall.
- Do not drive or tow the trailer until the lug-nut repair is complete.
- Arrange transport if the trailer has to be moved to the dealer; do not drive or tow it there yourself.
- Contact a franchised Doosan Portable Power dealer to schedule the free lug-nut tightening that secures the wheels and restores trailer stability.
- Bring the recall notice if you have it. If not, reference recall number 21V826 when you call.
What happens at the repair
At the dealer, a Doosan Portable Power technician tightens the wheel lug nuts covered by the recall. The recall repair is available now, and parts and labor are free. Do not tow the trailer until this work is complete. Doosan Portable Power has a general reimbursement plan on file, so bring documentation for any prior lug nut related repair you paid for and ask the service desk how to submit it.
| Reimbursement | Reimbursement available |
|---|
Timeline
| October 20, 2021 | NHTSA published the recall |
|---|---|
| November 4, 2021 | Owner notification mailed |
| November 5, 2021 | Dealer notification began |
| November 8, 2021 | Interim owner notification (was planned for this date) |
| January 3, 2022 | Dealer notification ended |
Frequently asked questions
What is recall 21V826?
Recall 21V826 covers 580 2019-2021 Doosan Portable Power Mobile Generator and Air Compressor trailers with wheel lug nuts that were improperly tightened. Loose lug nuts can reduce trailer stability or let a tire separate, increasing crash risk. Dealers will tighten the lug nuts for free.
What should I do if my 2019-2021 Doosan Portable Power Mobile Generator or Air Compressor is on this recall?
Check your VIN to confirm your specific trailer is included in recall 21V826. If it is, do not tow it until the remedy is complete. Contact a franchised Doosan Portable Power dealer and reference recall 21V826 when you schedule the free lug-nut tightening.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost, and Doosan Portable Power dealers will tighten the lug nuts free of charge. Parts and labor are covered under the recall remedy.
What does do not drive mean for this Doosan Portable Power recall?
Do not drive or tow the trailer until the dealer completes the lug-nut tightening. The recall involves wheel fasteners that were improperly tightened, so towing the unit before repair can lead to loss of trailer stability or tire separation.
When were owners notified about recall 21V826?
Doosan Portable Power mailed owner notification letters on November 4, 2021. If you own a used Mobile Generator or Air Compressor and never received a letter, check your VIN and call Doosan Portable Power customer service at 1-800-633-5206.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/21V826000 |
|---|---|
| Doosan Portable Power customer service | 1-800-633-5206 |
| NHTSA recall # | 21V826 |
| NHTSA recall # (full) | 21V826000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Quarterly Report (PDF)
- Download Recall Investigation Document (PDF) (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 →