Mack · United States · High
Mack Anthem (An): Engine and engine cooling — diesel
Affects Mack Anthem (An) · 2025 — about 3 vehicles.
The hazard
A detached idler gear can damage the engine, resulting in a stall and increasing the risk of a crash or injury.
What to do
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.
Critical — crash/injury risk now
High — injury risk; see remedy
Moderate — fix at next service
Low — minor / informational