Mack Defense Partners with Truck-Lite on U.S. Army Heavy Dump Truck Contract
Mack Defense is partnering with Truck-Lite Co., LLC to provide lighting systems for the M917A3 heavy dump truck (HDT)

Mack Defense is partnering with Truck-Lite Co., LLC to provide lighting systems for the M917A3 heavy dump truck that withstands the harsh environments of defense operations.
Photo: Mack Defense
Mack Defense is partnering with Truck-Lite Co., LLC to provide lighting systems for the M917A3 heavy dump truck (HDT). Truck-Lite is a provider of heavy-duty lighting, telematics, engine protection, safety, and visibility systems.
“To meet the demanding specifications of the U.S. Army, Mack Defense assembled a world class team of suppliers to develop a best-in-class vehicle,” said Jack Terefinko, Mack Defense acquisition program manager. “That includes working with partners like Truck-Lite, which has years of experience in developing military-spec equipment.”
Since 1998, Truck-Lite has produced military-spec lighting that meets or exceeds the military’s strict lighting standards. Mack Defense partnered with Truck-Lite to bring that expertise to the M917A3 HDT program in the form of its blackout drive lights, front and rear composite lights and auxiliary lighting.
“Truck-Lite has supported the U.S. Army for more than 20 years through the development and release of forward and signal lighting that withstands the harsh environments of defense settings,” said Jacques Baudeloque, military sales director for Truck-Lite. “We’re proud to continue our relationships with both Mack Defense and the Army to provide the toughest and best lighting for the M917A3 HDT.”
The U.S. Army awarded Mack Defense a firm-fixed-price $296 million contract in May 2018 to produce up to 683 M917A3 HDTs. Based on the commercially-available Granite dump truck, the Mack Defense M917A3 HDT has been optimized meet the demanding requirements of the U.S. Army with heavier-duty rear axles, all-wheel drive, increased suspension ride height and other rugged features.
More Vehicle Research

GM Unveils New Sixth-Generation Small Block Engines for 2027 Light-Duty Pickups
General Motors unveiled two new small-block engines, backed by extensive real-world validation and more than 70 years of small-block V8 manufacturing experience, as part of the engine portfolio for the 2027 Chevrolet Silverado 1500 and GMC Sierra 1500.
Read More →
Chevrolet Silverado 1500 Fleet Guide Specs Capability and 2027 Model-Year Updates
The next-generation 2027 Chevrolet Silverado 1500 brings new V-8 engines, updated technology, expanded safety features, and a fleet-focused Work Truck. Here’s what commercial fleets need to know so far.
Read More →
2026 Ram 1500 Tradesman Put to a Real-World Fleet Test
A few days behind the wheel of a 2026 Ram 1500 Tradesman turned into a test of visibility, parking, work-ready features, and even severe-weather driving.
Read More →
Isuzu N-Series Gas Fleet Guide: Specs, Capability and 2027 Model-Year Updates
Explore Isuzu Truck North America’s N-Series Gas fleet specs, engine performance, GVWR and payload capability, configurations, chassis dimensions, work-focused features, and 2027 model-year information.
Read More →
Ram ProMaster City Fleet Guide Specs Cargo Capacity and 2027 Updates
Work Truck’s Ram ProMaster City Fleet Guide tracks the latest specifications, cargo capability, configurations, fleet technology, pricing, and model-year updates for Ram’s mid-size commercial van.
Read More →
Ford F-150 Fleet Guide Specs Capability and 2026 Model-Year Updates
Explore 2026 Ford F-150 fleet specs, engines, towing and payload capability, configurations, work features, technology, and model-year updates.
Read More →
TCI Now Sells & Supports Battle Motors’ Vocational Trucks
Midwest truck dealer Truck Centers, Inc. (TCI) has expanded its transportation solutions with sales and service support for Battle Motors’ heavy-duty vocational trucks at locations in locations in Indiana, Illinois, and Missouri
Read More →
Ram 1500 Fleet Guide Specs, Capability and 2027 Model-Year Updates
Explore always up-to-date Ram 1500 fleet specs, engines, towing and payload capability, configurations, technology, pricing updates, and model-year changes.
Read More →
Peterbilt Trucks Equipped with Paccar TX-18 Pro Boost Efficiency for Maryland Fleet
Patuxent Companies is replacing aging trucks with the Peterbilt Model 567 and Model 589, specified with the Paccar TX-18 Pro 18-speed automated transmissions, and is reporting an 8% to 10% improvement in fuel economy.
Read More →
Stellar Expands into Fire Apparatus Market with Acquisition of Midwest Fire
Stellar Industries has acquired Midwest Fire, a custom fire apparatus manufacturer headquartered in Luverne, Minnesota, with nearly four decades of specialized apparatus experience.
Read More →
