RecallPulseUpdated Oct 9, 2026

2025 Mack Anthem (an): Engine And Engine Cooling recall

NHTSA campaign 25V256000 · 3 units potentially affected · filed Apr 17, 2025

What's 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.

Why it matters

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.

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.

Recall details

NHTSA campaign
25V256000
Manufacturer no.
SC0477
Manufacturer
Mack Trucks, Inc.
Component
ENGINE AND ENGINE COOLING:ENGINE:DIESEL
Units affected
3
Report received
Apr 17, 2025
Owner letters
Apr 24, 2025
Type
Vehicle

Check whether your vehicle is included with the official NHTSA VIN lookup or your dealer. Repairs for safety recalls are free.

Vehicles covered