"HEMTT" . thats a new term for me. Cat C15 Engine.
[TABLE="class: infobox vcard, width: 315"]
[TR]
[TH]Type[/TH]
[TD]8×8 off-road cargo truck[/TD]
[/TR]
[TR]
[TH]Place of origin[/TH]
[TD]
United States[/TD]
[/TR]
[TR]
[TH="bgcolor: #B0C4DE, colspan: 2, align: center"]Service history[/TH]
[/TR]
[TR]
[TH]In service[/TH]
[TD]1982–present[/TD]
[/TR]
[TR]
[TH]Used by[/TH]
[TD]
U.S. Army[/TD]
[/TR]
[TR]
[TH="bgcolor: #B0C4DE, colspan: 2, align: center"]Production history[/TH]
[/TR]
[TR]
[TH]Manufacturer[/TH]
[TD]
Oshkosh Corporation[/TD]
[/TR]
[TR]
[TH]Unit cost[/TH]
[TD]starting at US$135,000[/TD]
[/TR]
[TR]
[TH]Produced[/TH]
[TD]1982–present[/TD]
[/TR]
[TR]
[TH]Number built[/TH]
[TD]13,000+[/TD]
[/TR]
[TR]
[TH]Variants[/TH]
[TD]M977 cargo truck
M978 tanker
M983 tractor
M984 wrecker
M985 cargo truck
M1120 Load Handling System[/TD]
[/TR]
[TR]
[TH="bgcolor: #B0C4DE, colspan: 2, align: center"]Specifications (M977A4)[/TH]
[/TR]
[TR]
[TH]Weight[/TH]
[TD]41,600 lb (18,886 kg) empty[/TD]
[/TR]
[TR]
[TH]Length[/TH]
[TD]409 in (10.39 m)[/TD]
[/TR]
[TR]
[TH]Width[/TH]
[TD]96 in (2.44 m)[/TD]
[/TR]
[TR]
[TH]Height[/TH]
[TD]119 in (3.02 m)[/TD]
[/TR]
[TR]
[TH]Crew[/TH]
[TD]2[/TD]
[/TR]
[TR]
[TD="colspan: 2, align: center"]
[/TD]
[/TR]
[TR]
[TH]Engine[/TH]
[TD]Caterpillar C15
515 hp (384 kW)[/TD]
[/TR]
[TR]
[TH]Transmission[/TH]
[TD]5-speed automatic
with 2 range transfer case[/TD]
[/TR]
[TR]
[TH]Suspension[/TH]
[TD]Hendrickson w/equalizing beam[/TD]
[/TR]
[TR]
[TH]Ground clearance[/TH]
[TD]24 in (610 mm)[/TD]
[/TR]
[TR]
[TH]Fuel capacity[/TH]
[TD]155 US gal (587 l)[/TD]
[/TR]
[TR]
[TH]Operational
range[/TH]
[TD]300 mi (483 km) loaded[/TD]
[/TR]
[TR]
[TH]Speed[/TH]
[TD]62 mph (100 km/h)[/TD]
[/TR]
[/TABLE]