Engine: dieselRecall 25V-256 · 2025 Mack Anthem (an)
Mack Trucks, Inc. recall 25V-256 covers 3 2025 Mack Anthem (an) for a engine: diesel problem, reported to NHTSA on April 17, 2025. The manufacturer's latest report (2025 Q4) shows 100% of affected vehicles repaired.
Source: NHTSA recall 25V256000 and manufacturer quarterly reports. Started by the manufacturer.
The problem
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.
The risk
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.
Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.
How fast cars are being fixed
100%repaired
Share of affected vehicles repaired in each quarterly report the manufacturer filed with NHTSA.
Vehicles in this recall
Built from September 24, 2024 to October 24, 2024. Not every vehicle in these model years is included; check by VIN.