Technical Service Bulletin S4578 072025 — 2026 MACK ANTHEM (AN)
STRUCTURE:BODY
Bulletin Details
| TSB ID | S4578 072025 |
| Manufacturer | |
| Vehicle | 2026 MACK ANTHEM (AN) |
| Component | STRUCTURE:BODY |
| Communication Date |
Bulletin Summary
SC - Mack Trucks has determined that certain AN models were assembled without a crossmember that was needed for the pusher axle.
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.
Other TSBs for the 2026 MACK ANTHEM (AN)
S4579 092025
POWER TRAIN
S4579 092025
UNKNOWN OR OTHER
S4574 072025
POWER TRAIN
S4578 072025
UNKNOWN OR OTHER