Peterbilt spring brake chamber may have been assembled with incorrect springs that were out of specification, which may cause the pressure plate to shift.
The short version
PACCAR Incorporated reported a problem with the disc chamber. Here is what owners need to know.
The spring brake chamber may have been assembled with incorrect springs that were out of specification, which may cause the pressure plate to shift.
The pressure plate may tear the diaphragm, causing a loss of air pressure and increasing the risk of a crash.
Take it to a dealer — they will replace brake chambers, free of charge.
Affected vehicles
These model years are included in NHTSA campaign 21V-328.
| YEAR RANGE | MODEL |
|---|---|
| 2021 | Peterbilt 348 |
| 2021 | Peterbilt 579 |
What changed
Newest first. The record shows both when the recall began and what has changed since.
- Recall reported to NHTSA. LATEST
Drive one of these? Check your VIN to see if your specific vehicle is affected.
Check your VINWhat this record means
Data from the NHTSA recall database. A clean VIN check means no open federal recalls for that vehicle — not that it never had one.
Not affiliated
MyAutoRecalls is not affiliated with PACCAR Incorporated or the National Highway Traffic Safety Administration.