“Our military continues to field Mack HDTs into various operations around the world, so these vehicles have been put to the test and continue to meet demanding requirements,” said Dave Hartzell, president of Mack Defense, in a statement. “For that reason, the Army, Army Reserve and the Army National Guard continue to invest in these modern HDTs to ensure our soldiers have the right truck with the highest level of capabilities needed to ensure mission success.”

The Army previously had ordered 446 HDTs, which are based on the commercially available Mack Granite model but spec’d with heavier-duty rear axles, all-wheel drive, increased suspension ride height and other ruggedized features to meet the unique requirements of the U.S. military.

The Mack Granite HDT model features technology including ABS, modern control interfaces for user-friendly operation, and active safety systems. Compared to older Army HDT models, these modern features and improved sustainability were key factors in the Army’s investment in these new HDTs, according to Hartzell. 

Both the Mack Granite-based HDTs and the production line at the Mack Experience Center (MEC) in Allentown, Pennsylvania have undergone rigorous inspection by government quality auditors to ensure these mission-critical trucks exceed expectations.