Mack recall: Engine and engine cooling
What is wrong
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 could happen
A detached idler gear can damage the engine, resulting in a stall and increasing the risk of a crash or injury.
The fix
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.
Vehicles covered
- Mack Anthem (An) 2025
Facts
- NHTSA recall number
- 25V256000
- Type
- Vehicle
- Filed by
- Mack Trucks, Inc.
- Reported to NHTSA
- Apr 17, 2025
- Owners notified
- Apr 24, 2025
- Vehicles or items affected
- 3
- Started by
- The manufacturer
- Built
- Sep 24, 2024 to Oct 24, 2024
- Part
- Engine and engine cooling › Engine › Diesel
- Maker's own recall number
- SC0477
Notes
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.
Other recalls for the same vehicles
- Mack recall: Wheels May 28, 2026
- Mack recall: Seat belts Oct 6, 2025
- Mack recall: Steering Aug 11, 2025
- Mack recall: Electrical system Jun 10, 2025
- Mack recall: Service brakes, hydraulic Oct 23, 2024
- Mack recall: Seats Jul 30, 2024
To check one car, enter its 17-character VIN on the official NHTSA page: a recall may cover only some vehicles of a model year.
Recall data: National Highway Traffic Safety Administration (NHTSA). Nebula is not affiliated with or endorsed by NHTSA.