Recall · 25V256000
Mack Trucks recalled the MACK Anthem (AN) over engine and engine cooling
3
Vehicles covered
1
Model
1
Model years
April 17, 2025
Filed with NHTSA
ENGINE AND ENGINE COOLING:ENGINE:DIESEL
- The defect
- Mack Trucks, Inc. (Mack) is recalling certain 2025 Anthem (AN) vehicles. The idler gear bracket fasteners may have been improperly tightened, allowing the idler gear to detach from the engine.
- What it can cause
- A detached idler gear can damage the engine, resulting in a stall and increasing the risk of a crash or injury.
- What the dealer does
- Dealers will inspect and replace the turbo compound units as necessary, free of charge. Owner notification letters are expected to be mailed April 24, 2025. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0477.
- NHTSA's note
- Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 888-327-4236 (TTY 888-275-9171) or go to nhtsa.gov.
The repair is free, whatever the age or mileage of the vehicle, and whether or not you are the original owner.
Which vehicles
A recall reaches a range of VINs inside these model years, not every car built in them. Yours may not be covered even if it is listed here, and the only way to find out is NHTSA's own VIN lookup .
| Vehicle | Model years | Safety record |
|---|---|---|
| MackAnthem (AN) | 2025 | Not published here |
How this campaign compares
At 3 vehicles this is a small campaign: 97% of the 19,818 vehicle recalls filed since 1995 whose size NHTSA published are as large or larger. The middle campaign on file covers 472. It covers one model year, 2025, and the defect was reported to NHTSA in 2025, at or before the oldest model year it covers — as current as a recall gets.
Mack vehicles have been recalled over the engine and engine cooling 8 times before this, most recently in August 2022 as 22V606000. That is not evidence the earlier repair failed.
The vehicles on this campaign carry 7 other recalls published here, the newest being: 25V666000 (seat belts), 25V521000 (steering), 25V382000 (electrical system), 24V792000 (service brakes, hydraulic).
Check your own car
A VIN check is the only answer for a specific vehicle, and it also shows every other open recall on it, which is usually the reason it is worth doing rather than reading one campaign.
Filed by Mack Trucks, Inc. with NHTSA on April 17, 2025 as campaign 25V256000. Every word of the defect, consequence and remedy above is NHTSA's published record of that filing, not a summary of it.
Compiled and maintained by guarledes . Data last checked 2025-04-17.
Independent developer and analyst