Safety Recall NHTSA · 25V256000 Reported April 17, 2025

Idler gear may detach causing engine stall

Mack Trucks, Inc. · Engine And Engine Cooling · 3 vehicles potentially affected

NHTSA ID
25V256000
Manufacturer Campaign
SC0477
Manufacturer
Mack Trucks, Inc.
Component
Engine And Engine Cooling
Vehicles Affected
3
Recall Type
Vehicle
Report Received
April 17, 2025
Completion Rate
100.00

Defect Summary

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.

Safety Consequence

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

Corrective Action

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.

What you should do

  1. Look up your VIN at nhtsa.gov/recalls to confirm this recall applies to your vehicle.
  2. Contact an authorized Mack Trucks, Inc. dealer and reference recall ID 25V256000 or campaign SC0477.
  3. Schedule the free repair. By federal law, the manufacturer must remedy the defect at no cost.
View Official NHTSA Notice →
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FAQ: Recall 25V256000

Your rights, the repair process, and what each field on this page means.

What is recall 25V256000?

NHTSA recall 25V256000 was issued by Mack Trucks, Inc. on April 17, 2025. It addresses: Idler gear may detach causing engine stall. The recall affects approximately 3 vehicles, with the defect involving the Engine And Engine Cooling component.

How do I get this recall repaired?

Contact any authorized Mack Trucks, Inc. dealer and reference NHTSA recall ID 25V256000 or the manufacturer campaign number SC0477. Under federal law, the repair is completely free regardless of vehicle age or owner history.

Is my vehicle included in this recall?

The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls. NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.

How long do I have to get a recall repair done?

There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.

Where does the data on this page come from?

All information on this page is sourced directly from the U.S. Department of Transportation public dataset for NHTSA recalls. Last refreshed: 2026-05-20. For the most current official notice, visit nhtsa.gov/recalls.