Service: US Army, USMC Engine: MTU Detroit Diesel 12.1 liter Variants: M977 cargo truck, M978 tanker, M983 tractor, M984 wrecker, M985 cargo truck Crew: 2 Range: 400 miles Speed: 62 mph The Heavy ...

The first Mack Defense M917A3 Heavy Dump Trucks (HDTs) were delivered to the US Army in September 2020 after an order was placed in 2018. The US Army has ordered another 103 Mack Defense M917A3 HDTs, ...