Work Truck Logo
MenuMENU
SearchSEARCH

Mack Defense Developing Armored Cab

A new partnership will provide a force protection system for the Mack Granite-based truck.

Mack Defense Developing Armored Cab

The Mack Defense M917A3 Heavy Dump Truck is a commercially-based Mack Granite dump truck, engineered to be a tactical vehicle solution for the U.S. Army.

Photo: Mack Defense 

2 min to read


Mack Defense has partnered with TenCate Advanced Armor USA to provide a force protection system for the Mack Granite-based M917A3 Heavy Dump Truck (HDT) and other Mack Defense vehicle platforms.

TenCate provided design and engineering support to Mack Defense to equip the M917A3 HDT with a force protection system that protects occupants against threats in hostile environments.

Ad Loading...

“Mack Defense is proud to have partnered with TenCate Advanced Armor USA,” said David Hartzell, president, Mack Defense. “The M917A3 HDT’s armored cab is a terrific demonstration of TenCate’s advanced engineering capabilities for optimized survivability solutions.”

The capabilities of TenCate Advanced Armor USA in survivability design is a spin-off of TenCate's experience in working with passive armor solutions, blast protection, and active blast mitigation. Experience in addressing those three threats, which push armor solutions to the limit, has provided TenCate with anthe understanding of the materials and solutions required to develop force protection systems.

TenCate Advanced Armor USA provides designs for up-armoring, while saving weight and minimizing ballistic gaps. This provides the user with the highest level of protection by gaining ballistic protection without decreasing the mobility and operability of the platform, according to the company.

TenCate fully integrated the commercial Mack Granite dash and electronics, providing a common operator environment with the non-armored M917A3 HDT. The M917A3 HDT’s force protection development program included armor solution design, blast modeling, and live-fire testing. The design offers customizable protection kits to allow the force protection solution to be tailored to the threat environment and customer requirements.

The first application of this cab is the M917A3 Heavy Dump Truck. The U.S. Army awarded Mack Defense a firm-fixed-price $296 million contract in May 2018 to produce up to 683 M917A3 HDTs.

Ad Loading...

Based on the commercially available Mack Granite model, the Mack Defense M917A3 HDT has been optimized to meet the demanding requirements of the U.S. Army including heavier-duty rear axles, all-wheel drive, increased suspension ride heightn and other ruggedized features, according to Mack Defense. 

More Vehicle Research

POV the truck on the show floor says stop kicking me with image of tire being kicked

POV: You’re the Truck Everyone Won’t Stop Kicking

From tire kickers and door slammers to the hundredth “what engine’s in this thing” question, life on the show floor isn’t exactly easy. In this mockumentary-style video, we flip the script and give you the POV of an Isuzu truck sitting front and center at the booth.

Read More →
Transparent image of the front of a Mack Truck with a darkened windshield.

Mack Trucks Debuts Mack ImpactShield Windshield Technology on All-New Mack Granite

Mack Trucks will now offer the Mack ImpactShield, a windshield made with Corning Fusion5 Glass, as standard equipment on the all-new Mack Granite vocational trucks starting later this year.

Read More →
Composite image showing four different photos of a truck ranging from desert to snow, with an orange stripe across the middle of the image with while logos for International and CV Series.
Vehicle Researchby Wayne ParhamApril 29, 2026

International CV Series: Medium-Duty Workhorse to End Production

Although International will end production of its CV Series in September, dealers will continue to support the Class 4-6 work truck, and International sees the MV Series filling the niche needs of fleets that have depended on the CV.

Read More →
Ad Loading...
White off-road utility truck in the desert.
Vehicle Researchby News/Media ReleaseApril 28, 2026

Acela Truck Company Unveils Monterra II Cab-Over Commercial Truck Chassis

Acela Truck Company is replacing its Monterra with the new Monterra II, which it recently debuted. The new truck will be offered in day cab, extended cab, and crew cab configurations, along with 4x4 and 6x6 drivetrain options.

Read More →
Image of mountains and multiple small images of truck drivers, headline Last Week to Enter and logo for Star National Experience.
Vehicle Researchby News/Media ReleaseApril 27, 2026

Final Week to Register for Western Star’s Star Nation Experience

This is the final week to register to be part of the Star Nation Experience, a Western Star event that celebrates professional drivers, their skills, and their expertise. It is an all-expenses-paid event built around competition, camaraderie, and the “Never Back Down” spirit that defines the Western Star community.

Read More →
Chris Wolfe presents Freightliner Custom Chassis MT lineup at Work Truck Week 2026, featuring work-in van designs, mobile tool trucks, and utility workspace applications.
Vehicle Researchby Lauren FletcherApril 23, 2026

Not Your Average Work Truck | Freightliner MT Walkaround

Freightliner MT chassis walkthrough from Work Truck Week 2026, featuring real-world applications, mobile workspaces, and fleet-ready configurations.

Read More →
Ad Loading...
Man standing and talking with clasped hands in front of a poster for Isuzu truck with logo for Truck Chat and Work Truck and headline Latest Trucks & Upfits.
Sponsoredby Lauren FletcherApril 21, 2026

Tour Isuzu’s Latest Trucks & Upfits

Check out Isuzu Commercial Truck of America’s latest trucks as Brian Tabel, assistant vice president of marketing, gives us the tour and provides an update on new features and special upfits.

Read More →
Man in business attire talking and gesturing in front of a truck, tinted blue background, with yellow headline Reading's New Service Bodies, and logos for Truck Chat and Work Truck.
Vehicle Researchby Wayne ParhamApril 20, 2026

Reading Truck Launches New Service Bodies

Let’s take a look at the latest service bodies from Reading Truck, the RHD-46 and the RHD-67. Plus, in this video, you will learn about the new Combo Body.

Read More →
Man talking and gesturing in front of a large Kenworth truck, tinted blue in the background, and yellow headline Kenworth's T880S Performance Hood and logos for Truck Chat and Work Truck.
Vehicle Researchby Wayne ParhamApril 20, 2026

Advantages of the Kenworth T880S Performance Hood

Take a look at Kenworth’s T880S Performance Hood and hear its advantages from Alex Reid, Kenworth’s vocational marketing manager. He also provides a short overview of the other members of the T880 lineup.

Read More →
Ad Loading...
Person gesturing toward a big truck, tinted blue in background image, with yellow headline Kenworth's T480 and logos for Work Truck and Truck Chat.
Vehicle Researchby Wayne ParhamApril 17, 2026

Walkaround of Kenworth’s T480 Vocational Truck

Work Truck checks out the Kenworth T480, a workhorse of Kenworth’s vocational lineup. This video tour digs into the details of a Class 8 T480 equipped as a water truck.

Read More →