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Mack Defense M917A3


Multi-Role Heavy Military Truck


United States | 2019



"The Mack Defense M917A3 continues the M917 line that began in 1979 when a Cold War between East and West was still being fought."



Authored By: Staff Writer | Last Edited: 08/18/2023 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.
The M917A3 is a heavy dump truck designed, developed, and manufactured by Mack Defense of the United States. The heavy-duty hauler is based in the civilian/industry market Mack "Granite" series with specific modifications enacted to suit United States Army requirements for a versatile, durable military player. M917A0 marks the original dump trucks of 1979 while the M917A1 designation was used for a succeeding entry introduced in 1989 and was, itself, followed by the M917A2 of 2001.

M917A3 trucks began service in the U.S. Army inventory in 2019.

The truck sees a conventional design layout that includes side-by-side seating for two in the cab (standard or armored). The cab is set over and aft of the hood / engine housing at the bow. The rear of the chassis is taken up by the powered dump component, a 17-footlong Crysteel dump body with 18 to 22 yard capacity and a 50" integrated cab protector (dumping at a 50-degree angle). The vehicle is suspended (Primaxx suspension system) atop an eight-wheeled arrangement (6x6 also available) which has a steerable front axle and three axles under the dump section. Ground clearance is excellent and road tires are large to facilitate cross-country travel.

The truck can haul away loads of 27 tons, benefitting from no fewer than eight load-bearing cross members along the chassis, and, itself, be airlifted to where it needs to be. Power is from a Mack 13L MP8 440 series 440hp diesel-fueled engine delivering 1,660lb-ft with variable driver-controlled engine braking. Gross Vehicle Weight (GVW) reaches 94,500lb with the 8x8 wheel configuration. The powerpack is mated to an Allison 4500 Gen5 transmission system.

Variants of the base dump design include a "wrecker", dedicated troop carrier, tanker, Heavy Equipment Truck (HET), and crane truck (listing between 30 and 60 tons).

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Power & Performance
Those special qualities that separate one land system design from another. Performance specifications presented assume optimal operating conditions for the M917A3 Multi-Role Heavy Military Truck.
1 x Mack 13L MP8 440 series diesel-fueled engine developing 440 horsepower to conventional all-wheeled 6x6 or 8x8 arrangement.
Installed Power
65 mph
105 kph
Road Speed
435 miles
700 km
Range
Structure
The physical qualities of the M917A3 Multi-Role Heavy Military Truck.
1
(MANNED)
Crew
29.2 ft
8.9 meters
O/A Length
9.7 ft
2.95 meters
O/A Width
10.7 ft
3.25 meters
O/A Height
39,683 lb
18,000 kg | 19.8 tons
Weight
Variants
Notable series variants as part of the Mack Defense M917A3 family line.
M917A3 - Base Series Designation.
Wrecker - Modified wrecker vehicle with appropriate field equipment over-flatbed.
Troop Carrier - Dedicated soft-top troop carrier variant.
Tanker - Water / fuel tanker truck form.
Heavy Equipment Truck (HET) - Very-heavy loads mover vehicle.
Crane - Mobile over-flatbed crane system.
Operators
Global customers who have evaluated and/or operated the Mack Defense M917A3. Nations are displayed by flag, each linked to their respective national land systems listing.

Total Production: 5,000 Units

Contractor(s): Mack Defense - United States
National flag of the United States

[ United States ]
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Image of the Mack Defense M917A3
Image from official Mack Defense marketing materials.

Design Qualities
Some designs are single-minded in their approach while others offer a more versatile solution to battlefield requirements.
UTILITY
Recognition
Some designs stand the test of time while others are doomed to never advance beyond the drawing board; let history be their judge.
Going Further...
The Mack Defense M917A3 Multi-Role Heavy Military Truck appears in the following collections:
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