Recall 21V882 affects 6,100 2017-2019 Western Star 4700, 4900, 5700, and 6900 trucks for power-stud arcing. Repair is free at any franchised Western Star dealer.
Western Star is recalling 6,100 2017-2019 4700, 4900, 5700, and 6900 trucks because a power stud that passes through the bulkhead can contact the bulkhead and create an electrical arc. That arc can increase the risk of a fire, and Western Star dealers will complete the recall repair free of charge.
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What's wrong?
The pass-through power stud on 2017-2019 Western Star 4700, 4900, 5700, and 6900 trucks carries electrical power through the bulkhead, the wall between sections of the truck body. It is supposed to stay insulated and properly spaced so current moves through the stud, not into surrounding metal.
On affected trucks, the stud sits close enough to the bulkhead that contact happens under the wrong conditions. DTNA found added risk from water intrusion during routine cleaning with high pressure washing equipment, along with inspection challenges in the earlier remedy. When the energized stud touches the bulkhead, the result is an electrical arc instead of a controlled electrical path.
There is no warning sign before failure. An owner does not get a reliable light, sound, or driveability change that proves the stud is about to arc.
Who's affected?
Spans the 4700, 4900, 5700, and 6900 truck lines across 2017-2019, all tied to the same pass-thru electrical stud wiring.
| 2017 Western Star 5700 | wiring |
|---|---|
| 2019 Western Star 4900 | wiring |
| 2019 Western Star 5700 | wiring |
| 2019 Western Star 4700 | wiring |
| 2018 Western Star 4700 | wiring |
| 2018 Western Star 5700 | wiring |
| 2018 Western Star 4900 | wiring |
| 2017 Western Star 4700 | wiring |
| 2017 Western Star 4900 | wiring |
| 2018 Western Star 6900 | wiring |
| 2019 Western Star 6900 | wiring |
| 2017 Western Star 6900 | wiring |
| Units affected | 6,100 |
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?
An electrical arc raises the risk of a fire. Because the recall involves the pass-through power studs, treat an included VIN as a repair priority and schedule dealer service soon. The new remedy applies even to vehicles previously completed under recall 18V-191. Repair is free at any franchised Western Star dealer.
What should I do?
- Check your VIN to confirm your 2017-2019 Western Star 5700, 4900, 4700, or 6900 is included in this recall.
- Contact a franchised Western Star dealer to schedule the free pass-through power-stud replacement that fixes the electrical arcing risk at the bulkhead.
- Bring the recall notice if Western Star mailed one. If not, reference recall number 21V882 and DTNA recall FL-907 when you call.
- Return to the dealer for the new remedy if the truck was previously inspected under 18V-191 and marked complete.
- Ask the dealer how to handle the truck before repair if you see signs of electrical arcing or fire risk.
What happens at the repair
At the dealer, a Western Star technician replaces the pass through power studs at the bulkhead so the stud cannot contact the bulkhead and arc. The recall repair is free, including parts and labor. This campaign supersedes 18V-191, so trucks previously inspected and marked complete under that recall need the new remedy. DTNA's standard reimbursement plan covers documented out-of-pocket repairs tied to this defect before the recall repair. Bring repair paperwork to the service desk or contact DTNA customer service.
| Reimbursement | Reimbursement available |
|---|
Timeline
| November 12, 2021 | NHTSA published the recall |
|---|---|
| January 4, 2022 | Owner notification mailed |
| January 9, 2022 | Dealer notification began |
| January 9, 2022 | Dealer notification ended |
| January 9, 2022 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 21V882?
Recall 21V882 covers 6,100 2017-2019 Western Star 4700, 4900, 5700, and 6900 trucks with pass-through power studs that can contact the bulkhead and create an electrical arc. That arc can increase fire risk. Western Star dealers will replace the power studs for free.
What should I do if my 2017-2019 Western Star 4700, 4900, 5700, or 6900 is on this recall?
Check your VIN to confirm your specific truck is included in recall 21V882. If it is, contact a franchised Western Star dealer to schedule the pass-through power stud replacement. Reference recall number 21V882 when you call. The dealer repair is free.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost, and Western Star dealers will replace the affected pass-through power studs free of charge. Parts and labor are covered under recall 21V882.
What is the safety risk?
The safety risk is fire. The affected trucks have a power stud that passes through the bulkhead, and contact between the stud and bulkhead can create an electrical arc. If your VIN is included, schedule the free dealer repair.
What if my truck was already inspected under recall 18V-191?
Your truck still needs the new remedy if its VIN is included in recall 21V882. This recall supersedes 18V-191, and trucks previously inspected or marked complete under that earlier recall need to return for the pass-through power stud replacement.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/21V882000 |
|---|---|
| Western Star customer service | 1-800-547-0712 |
| NHTSA recall # | 21V882 |
| NHTSA recall # (full) | 21V882000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Quarterly Report (PDF)
- Download Recall Document (PDF) (PDF)
- Download Owner Notice (PDF)
- Download Misc. Document (PDF)
- Download Owner Notification Letter (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 →