U.S. Army Orders 115 More Mack Defense Heavy Dump Trucks for National Guard
Mack Defense announced an additional U.S. Army order for 115 M917A3 heavy dump trucks, bringing total orders to 208 with a combined value over $84 million.
- 115
- 208
- $84 million
- $221.8 million
What Happened
Mack Defense announced an additional U.S. Army order for 115 M917A3 heavy dump trucks for the National Guard. Combined with 91 trucks ordered last month, the total stands at 208 trucks worth more than $84 million. These orders are part of a five-year contract awarded in June 2025 for up to 450 trucks with a maximum value of $221.8 million.
U.S. Army awards Mack Defense a five-year contract for up to 450 M917A3 heavy dump trucks, worth up to $221.8 million.
U.S. Army orders 91 trucks, funded by $47 million from the 2026 National Defense Appropriations Act.
U.S. Army places an additional order for 115 trucks.
“We are deeply appreciative of the U.S. Army and Army National Guard’s continued trust in Mack Defense and the M917A3 Heavy Dump Truck program. This latest order reinforces the critical value and importance of our long-standing partnership with the U.S. Army. These rugged, mission-ready Granite-based HDTs directly support the warfighter by enabling essential construction, infrastructure maintenance”
The M917A3 is based on the commercial Mack Granite model and built at Mack Defense's dedicated production line at the Mack Experience Center in Allentown, Pennsylvania. The facility opened in 2021 after a $6.5 million investment and leverages the workforce from Mack's main Lehigh Valley Operations. The trucks feature heavier-duty rear axles, all-wheel drive, increased suspension ride height, and other ruggedized military specifications.
- Heavier-duty rear axles
- All-wheel drive
- Increased suspension ride height
- Advanced technology including ABS, modern control interfaces, and active safety systems
Previously from Mack Trucks, Inc.
In June 2026, Mack Defense secured $47 million in federal funding to support production of the M917A3 Heavy Dump Truck. That funding partially covered the 91 trucks ordered last month, and now this additional order continues the program.
Background drawn from MotorClaw's earlier coverage of Mack Trucks, Inc.'s official releases.
Why this matters
This order sustains production at Mack Defense's Allentown plant, supporting the local workforce and providing the National Guard with vital trucks for building airfields, roads, and disaster response. It underscores the U.S. Army's commitment to domestic heavy-duty manufacturing.
Terms in This Story
- Heavy Dump Truck (HDT)
- A large truck designed for hauling heavy loads of materials like dirt, gravel, or rock, typically used in construction and mining.
- National Guard
- A reserve military force that can be called upon for domestic emergencies and overseas missions.
- ABS
- Antilock braking system, which prevents wheels from locking during braking, helping the driver maintain steering control.
- All-wheel drive
- A drivetrain that powers all wheels simultaneously for better traction on rough terrain.
Summarised from the linked release; details can be imperfect — always verify against the original source.