NHTSA Recall 21V328000: Chamber (service brakes) and service brakes, air
PACCAR Incorporated reported this safety recall to NHTSA on , covering an estimated 13 vehicles. It affects 2 models including the Peterbilt 348.
| NHTSA campaign | 21V328000 |
|---|---|
| Manufacturer campaign | 21PBE |
| Components | SERVICE BRAKES, AIR › DISC › CHAMBER; SERVICE BRAKES, AIR |
| Report received | May 10, 2021 |
| Owner notification | July 9, 2021 |
| Initiated by | Manufacturer |
Defect
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.
Safety risk
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.
Notes
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.safercar.gov.
Vehicles covered by recall 21V328000
Being listed here means the campaign covers the model year, not that every car was built with the defect or is still unrepaired. Enter your VIN above to check your specific vehicle. Recall repairs are free at authorised dealers. Source: NHTSA, October 2026.