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Military dump truck shown from the front quarter low angle.
Newsby News/Media ReleaseOctober 15, 2025

Mack Defense Receives Order for 86 U.S. Army M917A3 Heavy Dump Trucks

Mack Defense received an order for 86 M917A3 Heavy Dump Trucks from the U.S. Army. This is the initial order for a new five-year contract awarded earlier this year.

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Three military dump trucks driving on a test track.
Newsby News/Media ReleaseAugust 11, 2025

Mack Defense Secures New 5-Year Contract for Army’s M917A3 Heavy Dump Truck

Mack Defense has been awarded a new five-year contract to produce another 450 M917A3 Heavy Dump Trucks (HDTs) for the U.S. Army.

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Weekly Cheat Sheet, Work Truck May 27, 2025
Videosby Lauren FletcherMay 27, 2025

The Fleet Manager’s Weekly Cheat Sheet [May 27, 2025]

Mixed-fuel fleets rise, crash rates climb, and AI is preventing accidents. Get the fleet rundown in 60 seconds or less with this week’s Quick Hit!

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Camo background with inset image of a military truck and yellow headline that reads USMC Prototype.
Newsby News/Media ReleaseMay 19, 2025

Mack Defense to Make Prototypes of Medium Tactical Truck for U.S. Marine Corps

Mack Defense will provide two prototype Medium Tactical Trucks (MTT) for the U.S. Marine Corps. The new family of vehicles will replace the Marine Corps’ Medium Tactical Vehicle Replacement fleet.

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Mack military dump truck view from a low angle against a blue sky.
Newsby News/Media ReleaseMarch 24, 2025

Mack Defense Produces 500th U.S. Army M917A3 Heavy Dump Truck

Mack Defense has produced its 500th M917A3 Heavy Dump Truck (HDT) for the U.S. Army, a significant milestone in fulfilling the $296 million contract awarded in 2018. They are based on the commercially available Mack Granite.

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Mack Defense military dump truck
Newsby News/Media ReleaseJanuary 24, 2025

U.S. Army Orders 103 Mack Defense Heavy Dump Trucks

Mack Defense received an order from the U.S. Army for 103 M917A3 Heavy Dump Trucks as part of a contract awarded in 2018 that allows for the purchase of 683 dump trucks in total.

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Newsby News/Media ReleaseMarch 19, 2024

Mack Defense to Develop U.S. Marine Corps 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. The new family of vehicles will replace the Marine Corps Medium Tactical Vehicle Replacement fleet.

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Newsby News/Media ReleaseDecember 14, 2023

Mack Defense to Deliver the Next-Gen of Defense Trucks

Mack Defense teams with BAE Systems for alternative propulsion system on U.S. Army common tactical truck prototypes.

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Newsby News/Media ReleaseAugust 28, 2023

U.S. Army Orders 135 Additional Mack Granites

Mack Defense recieved a 135 Mack Defense M1917A3 heavy dump truck order by the U.S. Military.

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Newsby Staff and News ReportsFebruary 3, 2023

Mack Defense Gets U.S. Army Contract for Prototype Phase

The prototypes will be tested and evaluated to determine the final requirements for the next generation of trucks to ultimately begin modernization and replacement of the Army’s fleet.

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