2021–2023 Peterbilt 579 Recall: A fastener on the front spring bracket may have been installed with the…
NHTSA campaign 23V423000 · Electrical System · filed Jun 13, 2023 · verified Jul 30, 2026
The defect
PACCAR, Incorporated (PACCAR) is recalling certain 2021-2023 Peterbilt 579 vehicles equipped with MX-13 engines and 160-amp alternators. A fastener on the front spring bracket may have been installed with the head on the outside of the frame rail, which can chafe and damage the alternator positive cable.
The risk
A damaged alternator cable increases the risk of a fire.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
Dealers will replace the frame fastener and secure the alternator cable, free of charge. Owner notification letters are expected to be mailed August 11, 2023. Owners may contact Peterbilt's customer service at 1-940-591-4220. PACCAR's number for this recall is 23PBD.
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.
Affected vehicles
Related recalls
More Peterbilt 579 recalls
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Other campaigns involving Peterbilt vehicles
Source: NHTSA recall database, campaign 23V423000 (manufacturer number 23PBD). Data last verified Jul 30, 2026.