Recall 23V020 affects 51 2018-2021 Allvac AVRB-18 vehicles for exhaust silencer welds that can crack. Repair is free at any franchised Allvac dealer.
Allvac is recalling 51 2018-2021 AVRB-18 vehicles because vibration during vacuum operation can crack the exhaust silencer welds. If the silencer detaches, it can become a road hazard and raise the risk of a crash; Allvac dealers will complete the free repair.
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 exhaust silencer on the 2018-2021 Allvac AVRB-18 is a muffler-like part in the exhaust system. It lowers noise while the vehicle runs vacuum operations, and it needs to stay supported as the machine vibrates under load.
On affected vehicles, the silencer sat on a metal plate bolted to the frame, but the silencer itself was not attached to that support. Vacuum-operation vibration placed stress on the silencer and its welds. Over time, the welds can crack, and a cracked silencer can break away from the vehicle instead of staying on the frame.
There is no warning sign before failure. An owner or operator is not expected to see a dash light or feel a driving symptom before the exhaust silencer welds crack or the silencer detaches.
Who's affected?
Covers the AVRB-18 across four model years, with the same exhaust-silencer equipment listed for each year.
| 2019 Allvac AVRB-18 | Equipment |
|---|---|
| 2018 Allvac AVRB-18 | Equipment |
| 2020 Allvac AVRB-18 | Equipment |
| 2021 Allvac AVRB-18 | Equipment |
| Units affected | 51 |
| 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 vehicle is included.
What's the safety risk?
A detached exhaust silencer can fall from the vehicle and become a road hazard, increasing crash risk for nearby traffic. If the silencer is loose or missing, stop operating the vehicle and arrange service before further use. Repair is free at any franchised Allvac dealer.
What should I do?
- Check your VIN to confirm your 2018-2021 Allvac AVRB-18 is included in this recall.
- Contact a franchised Allvac dealer to schedule the free exhaust silencer weld and bracket repair that secures the silencer to the power frame.
- Bring the recall notice if you have it. If not, reference recall number 23V020 when you call.
- Call Allvac customer service at 1-800-382-8302 with questions about dealer repair or direct-sales parts and instructions.
- Avoid vacuum operations if the exhaust silencer sounds loose or detached until the vehicle is inspected.
What happens at the repair
At the dealer, an Allvac technician inspects the exhaust silencer for cracked welds, repairs any cracks, reattaches any detached silencer, and welds a c-shaped bracket from the silencer to the power frame. The recall repair is free. For direct-sale vehicles, owners receive the repair instructions and parts at no charge. If you've already paid for this same repair, Allvac will reimburse the remedy cost. Keep receipts and repair documentation, then ask customer service or the service desk how to submit the claim.
| Reimbursement | Reimbursement available |
|---|
Timeline
| January 23, 2023 | NHTSA published the recall |
|---|---|
| March 17, 2023 | Owner notification mailed |
| March 24, 2023 | Dealer notification began |
| March 24, 2023 | Dealer notification ended |
| March 24, 2023 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 23V020?
Recall 23V020 covers 51 2018-2021 Allvac AVRB-18 vehicles where vibration from vacuum operations can crack exhaust silencer welds. The exhaust silencer can detach and become a road hazard, increasing crash risk. Dealers inspect and repair the silencer free of charge.
What should I do if my 2018-2021 Allvac AVRB-18 is on this recall?
Check your VIN to confirm your specific vehicle is included in recall 23V020. If it is, contact a Gradall dealer to schedule the exhaust silencer inspection and repair. Reference recall number 23V020 when you call. The repair is free.
Does the recall repair cost anything?
No. Federal recall law requires the manufacturer to perform the recall repair at no cost. Gradall dealers will inspect the exhaust silencer, repair cracked welds, reattach detached silencers, and add the c-shape bracket free of charge.
What is the safety risk?
The safety risk is a detached exhaust silencer becoming a road hazard. Recall 23V020 ties the defect to cracked welds caused by vibration during vacuum operations. If the silencer separates from the vehicle, it increases crash risk for other road users.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/23V020000 |
|---|---|
| Allvac customer service | 1-800-382-8302 |
| NHTSA recall # | 23V020 |
| NHTSA recall # (full) | 23V020000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Quarterly Report (PDF)
- Download Recall Report (PDF)
- Download Owner Notice (PDF)
- Download Owner Notification Letter (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 →