OFFICIAL CAMPAIGN FILE

NHTSA campaign 23V504000

NHTSA campaign 23V504000 covers 11 published year-and-model reports from 2 makes in this index and lists 72 potentially affected units campaign-wide. VIN eligibility must be checked separately.

Report received July 21, 2023 · Snapshot September 21, 2026

01 / DEFECT RECORD

What NHTSA campaign 23V504000 says

NHTSA campaign 23V504000 identifies POWER TRAIN and states that Loose fasteners may allow the driveline to separate from the truck, increasing the risk of a crash.

Defect summary

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.

Consequence summary

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

02 / CORRECTIVE ACTION

Remedy for NHTSA campaign 23V504000

For NHTSA campaign 23V504000, the filed corrective action says: 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.

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.

Owner notification: September 1, 2023
Filing manufacturer: PACCAR Incorporated
Component groups: POWER TRAIN

03 / PUBLISHED VEHICLES

Vehicles listed under NHTSA campaign 23V504000

RecallRoad links 11 year-and-model reports associated with NHTSA campaign 23V504000; the list reflects published source rows, not individual VIN coverage.