Technical Service Bulletin S4533 072025 — 2025 MACK ANTHEM (AN)
ENGINE
Bulletin Details
| TSB ID | S4533 072025 |
| Manufacturer | |
| Vehicle | 2025 MACK ANTHEM (AN) |
| Component | ENGINE |
| Communication Date |
Bulletin Summary
SC - Mack Trucks has determined that certain AN model trucks equipped with an MP8 Turbo Compound (TC) engine may experience TC Double Idler Gear failure due to incorrect bearing preload.
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 2025 MACK ANTHEM (AN)
S4270 202512
ELECTRICAL SYSTEM
CBR 2496 092025
ELECTRICAL SYSTEM
S4404 202504
ELECTRICAL SYSTEM
S4342-202502
FUEL/PROPULSION SYSTEM
S4373-202502
STRUCTURE:BODY
CBR-2384 202406
UNKNOWN OR OTHER