Related: Mack Defense Enters Testing Phase of Heavy Dump Truck Contract
U.S. Army Gets First Mack Defense Heavy Dump Trucks
The U.S. Army took delivery of the first five Mack Granite model-based M917A3 heavy-dump trucks (HDT). In July, the trucks will enter up to 40 weeks of durability testing.

Mack Defense President David Hartzell (top left) officially presented the first five Mack Granite-based M917A3 heavy dump trucks (top right) to the U.S. Army during a ceremony at the Mack Customer Center.
Photo courtesy of Mack Defense
The U.S. Army took delivery of the first five Mack Granite model-based M917A3 heavy-dump trucks (HDT) from Mack Defense.
Leadership from Mack Defense presented the keys to officials with the U.S. Army during a ceremony that included several representatives of local and state elected officials. Beginning in July, the trucks will enter up to 40 weeks of durability testing at the U.S. Army’s Aberdeen Test Center in Maryland.
The Army first solicited bids for the M917 HDT program in 2017, seeking to develop the next generation of HDTs with increased occupant protection levels, higher payload, and improved mobility. Mack Defense was awarded the contract in May 2018 and will produce armor-capable or armored HDTs with deliveries through May 2025.
The Mack Defense M917A3 HDT is based on the civilian Mack Granite model, one of the top-selling construction trucks in North America, according to Mack. To meet the Army's needs, Mack Defense engineers added heavier-duty rear axles, all-wheel drive, and increased suspension ride height.
More Procurement

Government Fleet Car Sales More Than Double in September
Government fleet car sales rose 112.8% year over year in September, climbing from 39 to 83 units even as total monthly sales declined 4.5%.
Read More →
Isuzu Donates New N-SERIES NRR Truck to South Greenville Fire District to Support Community Outreach
Isuzu NRR equipped with Morgan truck body and PALFINGER liftgate will help support fire safety education, community engagement and outreach programs throughout Southern Greenville County.
Read More →
Government Vehicle Sales See Continued Growth from Beginning of Year
Government fleet sales rose from both January and February monthly totals, which were both under 20,000.
Read More →
Updated: Trump Signs Proclamation Imposing 25% Tariff on Auto Imports
A new proclamation signed by President Trump imposes a 25% tariff on imported passenger vehicles and key auto parts, citing national security concerns.
Read More →
Government Vehicles Sales See Another Dip Compared to 2024
Government fleet sales last month came in at 18,383 vehicles, falling 15.4% from 21,737 in February 2024.
Read More →
Washington Municipality Adds Workhorse Electric Trucks to Fleet
The municipality will deploy two W4 CC electric work trucks for trash and recycling can switch-outs, enhancing the efficiency of its waste management services.
Read More →
From the Archives: Changes in Fleet Acquisitions
When vehicles become harder to acquire, fleet managers must balance keeping vehicles on the road longer while managing the escalating operating costs of older vehicles.
Read More →
Mack Defense Awarded Contract By U.S. Marine Corps To Develop Medium Tactical Truck
The U.S. Marine Corps awarded Mack Defense a 12-month contract for the initial development of a new Medium Tactical Trucks (MTT) fleet.
Read More →
Government Vehicle Sales Rise from January to February
Government vehicle sales continue to rise into 2024 with both car and truck/SUV sales climbing between January and February of 2024, according to Bobit/Government Fleet sales data released March 2.
Read More →
How the UAW Strike Affected Government Fleet Orders from the Big 3
Government Fleet asked the Big 3 how their operations have been in the weeks since the UAW strike ended, with new contracts ratified. Plus, automakers address concerns about vehicle delivery delays.
Read More →

