Check your VIN

Mack idler gear bracket fasteners may have been improperly tightened, allowing the idler gear to detach from the engine.

NHTSA campaign 25V-256 · Reported April 17, 2025 · 3 vehicles affected

AFFECTED MODELS
Mack Anthem
VEHICLES AFFECTED
3
REMEDY
Dealers will inspect and replace the turbo compound units as necessary, free of charge.
COST
Free

The short version

Mack Trucks, Inc. reported a problem with the engine diesel. Here is what owners need to know.

WHAT

The idler gear bracket fasteners may have been improperly tightened, allowing the idler gear to detach from the engine.

WHY IT MATTERS

A detached idler gear can damage the engine, resulting in a stall and increasing the risk of a crash or injury.

WHAT TO DO

Take it to a dealer — they will inspect and replace the turbo compound units as necessary, free of charge.

Affected vehicles

These model years are included in NHTSA campaign 25V-256.

YEAR RANGEMODEL
2025Mack Anthem

What changed

Newest first. The record shows both when the recall began and what has changed since.

  1. Recall reported to NHTSA. LATEST

Drive one of these? Check your VIN to see if your specific vehicle is affected.

Check your VIN

What this record means

Data from the NHTSA recall database. A clean VIN check means no open federal recalls for that vehicle — not that it never had one.

Not affiliated

MyAutoRecalls is not affiliated with Mack Trucks, Inc. or the National Highway Traffic Safety Administration.