Recall 21V328000: 2021 Peterbilt 579
- Report received
- May 10, 2021
- Manufacturer
- PACCAR Incorporated
- Potentially affected
- 13vehicles
- Model years
- 2021
Check your own vehicle. A recall applies only to vehicles within the affected build range. Enter your VIN at nhtsa.gov/recalls. Recall repairs are free at a franchised dealer.
What NHTSA recorded
PACCAR Incorporated (PACCAR) is recalling certain 2021 Peterbilt 348 and 579 vehicles. The spring brake chamber may have been assembled with incorrect springs that were out of specification, which may cause the pressure plate to shift.
Possible consequence
The pressure plate may tear the diaphragm, causing a loss of air pressure and increasing the risk of a crash.
Remedy
Dealers will replace brake chambers, free of charge. Owner notification letters were mailed on July 9, 2021. Owners may contact PACCAR (Peterbilt) customer service at 1-940-591-4220. PACCAR's number for this recall is 21PBE.
Affected model years
Pages for each model year show complaints, parts, mileage and other recalls.
- 2021 Peterbilt 5791 complaints
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.