Technical Service Bulletin 14-027 — 2020 PETERBILT 389
EQUIPMENT
Bulletin Details
| TSB ID | 14-027 |
| Manufacturer | |
| Vehicle | 2020 PETERBILT 389 |
| Component | EQUIPMENT |
| Communication Date |
Bulletin Summary
Information only: In 2020, Peterbilt and Kenworth began using the same M10, M12, M16, and M20 frame fasteners on all vehicles. Torque specifications for these fasteners are different from previous fasteners.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.