Peterbilt 579 (Peterbilt) – Fuel Tank Attachment Risk (2023)
U-bolt contact with fuel tank can potentially cause fuel leakage and fire risk.
This AI-generated summary is provided for general informational purposes only and is derived from publicly available recall notices. It supplements but does not replace official agency classifications or safety instructions.
Check Your Product
According to the National Highway Traffic Safety Administration (NHTSA)
Product
2021 PETERBILT 579
Brand
PETERBILT
Lot Codes / Batch Numbers
Not specified in NHTSA notice. Check official source for details.
Products Sold
Model Year 2021
PACCAR Incorporated is recalling certain 2021 PETERBILT 579 vehicles due to fuel system, diesel:storage:tank assembly issues. A punctured fuel tank can leak fuel, increasing the risk of a fire..
Summary derived from NHTSA notice
Reason for Recall
As stated by NHTSA
PACCAR Incorporated (PACCAR) is recalling certain 2021-2024 Peterbilt 579 and 567 trucks. The U-bolts that attach the air tank to the chassis may contact the fuel tank and over time, wear a hole in the tank.
Reported concern (NHTSA)
A punctured fuel tank can leak fuel, increasing the risk of a fire.
Recommended Action
Per NHTSA guidance
Dealers will inspect and trim the U-bolts, and replace the fuel tank as necessary, free of charge. Owner notification letters were mailed November 3, 2023. Owners may contact Peterbilt's customer service at 1-940-591-4220. PACCAR's number for this recall is 23PBH.
Verify this information on the official source
For complete details and official instructions, check the National Highway Traffic Safety Administration (NHTSA) directly.
View official NHTSA recall noticePage updated: Jan 10, 2026