NHTSA campaign 23V504000 · Manufacturer campaign 23KWE and 23PBE
Kenworth and Peterbilt Recall 23V-504: Driveline Fasteners May Loosen
NHTSA recall 23V504000 (Manufacturer campaign 23KWE and 23PBE) was reported by PACCAR Incorporated on July 21, 2023, with 72 vehicles potentially affected (per NHTSA). NHTSA's record lists the Kenworth T280, Kenworth T480, Peterbilt 536 and more for model years 2023–2024. Owners were notified on September 1, 2023, per NHTSA.
Updated daily from NHTSA's recall files
Is my vehicle included?
This page lists, by model year, the vehicles NHTSA's recall record names for campaign 23V504000 in the model years try.vin imports (1995 and later); NHTSA's own record can list more. A model year on the list doesn't mean every vehicle of that year is included, and some may already have been repaired.
To see whether a specific vehicle is included and still needs the repair, enter its VIN at nhtsa.gov/recalls.
Free VIN check: decode a VIN to see its year, make and model.
Key facts
- NHTSA campaign
- 23V504000 (also written 23V-504 or 23V504)
- Filed by
- PACCAR Incorporated
- Manufacturer campaign number
- 23KWE and 23PBE
- Report received
- Potentially affected
- 72 vehicles (per NHTSA)
- Component
- Power Train — Driveline
- Owners notified
Repair completion: 81.94% (latest rate the manufacturer reported to NHTSA; dataset updated October 21, 2026)
NHTSA cautions against comparing completion rates across recalls or manufacturers. How try.vin reads them.
Vehicles listed for this recall
NHTSA's recall record lists these vehicles for recall 23V504000. try.vin imports model years 1995 and later, so NHTSA's own list can be longer. Model years with a try.vin recall page link to it. Build dates are NHTSA's range for a model year (per NHTSA); a vehicle built in that range is not necessarily included.
NHTSA's recall notice
As NHTSA's recall record states it for campaign 23V504000.
Defect description
PACCAR Incorportated (PACCAR) is recalling certain 2023-2024 Peterbilt 536, 537, 548, 2023-2024 Kenworth T280, T480, and 2024 Kenworth T380 vehicles. The adhesive thread-lock may not have been applied to the four flange mounted yoke bolt threads, allowing the driveline fasteners to loosen.
Safety consequence
Loose fasteners may allow the driveline to separate from the truck, increasing the risk of a crash.
Manufacturer remedy
Dealers will apply adhesive thread-lock and replace the fasteners, free of charge. Owner notification letters are expected to be mailed September 19, 2023. Owners may contact PACCAR's customer service at 1-425-828-5888 (Kenworth) or 1-940-591-4220 (Peterbilt). PACCAR's numbers for this recall are 23KWE and 23PBE.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Sources
Official NHTSA notice for recall 23V504000
Campaign details come from NHTSA's recall files, which try.vin imports once a day. The plain-language subject and the completion rate come from the U.S. Department of Transportation's Recalls Data dataset. How try.vin reads recall data.