# NHTSA recall 23V504000

A recall listed here may apply to a vehicle of this year, make and model. Only the manufacturer can say whether it applies to one vehicle: check the VIN with the official lookups.

- Published by: NHTSA \(United States\)
- Campaign number: 23V504000
- Manufacturer's number: 23KWE and 23PBE
- Manufacturer: PACCAR Incorporated
- Reported: 2023\-07\-21
- Owners notified: 2023\-09\-01
- Component: POWER TRAIN:DRIVELINE
- Units potentially affected: 72
- Part numbers: K169\-158\-12CA, W34\-1180, Loctite 243

## What is wrong

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.


## What can happen

Loose fasteners may allow the driveline to separate from the truck, increasing the risk of a crash.


## The 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.


## Remedy progress the manufacturer reported

- Report: Annual report 1, for 2025 quarter 3 to 2026 quarter 2
- Filed with NHTSA: 2026\-07\-28
- Vehicles in the campaign: 72
- Reported remedied: 59 \(81%\)
- Reported unreachable: 1
- Reported removed: 0

These are the manufacturer's totals for the whole campaign at the end of 2026 quarter 2, as filed with NHTSA. They do not say whether one vehicle has been remedied: check the VIN with the official lookups. The reports are from data as of 2026\-10\-19.

## Vehicles this campaign lists

- [2023 KENWORTH T280](/makes/kenworth/t280/2023/recalls.md)
- [2024 KENWORTH T280](/makes/kenworth/t280/2024/recalls.md)
- [2024 KENWORTH T380](/makes/kenworth/t380/2024/recalls.md)
- [2023 KENWORTH T480](/makes/kenworth/t480/2023/recalls.md)
- [2024 KENWORTH T480](/makes/kenworth/t480/2024/recalls.md)
- [2023 PETERBILT 536](/makes/peterbilt/536/2023/recalls.md)
- [2024 PETERBILT 536](/makes/peterbilt/536/2024/recalls.md)
- [2023 PETERBILT 537](/makes/peterbilt/537/2023/recalls.md)
- [2024 PETERBILT 537](/makes/peterbilt/537/2024/recalls.md)
- 2023 PETERBILT 548
- [2024 PETERBILT 548](/makes/peterbilt/548/2024/recalls.md)

## Bulletins for the same vehicles and component

A bulletin is the manufacturer's note to its dealers. It is not part of this recall.

- [T017](/bulletins/11037625.md), 2026-10-01, Service bulletin
- [24PBE\_24KWE](/bulletins/11028308.md), 2026-02-05, Warranty extension
- [24PBE/KWE](/bulletins/11027063.md), 2026-01-06, Warranty extension
- [24PBE](/bulletins/11026415.md), 2025-12-05, Service campaign
- [24KWE](/bulletins/11026414.md), 2025-12-05, Service campaign
- [24PBJ](/bulletins/11021490.md), 2025-08-05, Service bulletin
- [24KWJ](/bulletins/11021398.md), 2025-08-05, Service bulletin
- [T020 \- PB](/bulletins/11016468.md), 2025-04-04, Service bulletin
- [98\-026](/bulletins/11000766.md), 2024-06-04, Service bulletin
- [E307](/bulletins/10254171.md), 2024-05-04, Service bulletin

## Check a VIN

- [NHTSA recall lookup by VIN, United States](https://www.nhtsa.gov/recalls)
- [Transport Canada recall search, Canada](https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/menu.aspx?lang=eng)

JSON: [/v1/recalls/nhtsa/23V504000](/v1/recalls/nhtsa/23V504000)

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