Zf North America recall — Chamber
NHTSA · April 14, 2025
- NHTSA recall campaign 25E027000 (Zf North America), reported .
- Potentially affected vehicles: 2,090.
- Component: Chamber.
- Details as of ; the linked official notice is authoritative for lot codes, VINs, and remedies.
- Agency
- NHTSA
- Posted
- Recalling firm
- ZF North America, Inc.
- Source ID
- 25E027000
Defect
Nova Bus (US) Inc. (Nova Bus) is recalling certain ZF North America Knorr-Bresme 20/22-57 brake chambers, with part number K038830N00, sold as replacement parts for certain buses. The brake chamber may have been improperly manufactured, which can result in an air leak.
Consequence
A brake chamber air leak may cause the brakes to engage unexpectedly, which can overheat the brakes and increase the risk of a fire. Additionally, unexpected braking can increase the risk of a crash.
Corrective action
Nova Bus will replace the brake chambers, free of charge. Owner notification letters were mailed August 21, 2025. Owners may contact Nova Bus customer service at 1-450-472-6410. Nova Bus's number for this recall is CR5720.
Affected vehicles
| Make | Model | Year |
|---|---|---|
| Zf North America | Brake Chamber | 9999 |
Related: Vehicle recalls · All recall events