|.50cal M2HB MG||M49A1 or M66 ring mount above cab||360°
|Engine||General Motors 6V53; 6 cylinder, 2 cycle, vee diesel|
|Horsepower||Gross: 212@2800rpm||Torque||Gross: 492 ft-lb@1300rpm|
|Transmission||Allison TX-100, 3 ranges forward, 1 reverse|
|Steering||DS200 controlled differential, steering levers|
|Type||Road wheels||Track return rollers|
|Torsion bar||5 individually sprung dual/track||Flat track|
|Drive sprockets||Idlers||Shock absorbers||10-tooth front drive||Dual adjustable at rear of track||On first and last road wheels/track|
|Center guide, single pin, steel with detachable rubber pad|
|Shoes/track||Left side: 63
Right side: 64
|Ground contact length||111"
|Max fording depth||Floats|
The XM45E1 was based on the cargo carrier M548, and was intended to refuel both mechanized and man-portable flamethrowers. Armor was bolted to the cab and hull, and 2.25"- (5.72cm-) thick glass was installed to protect the windshield, door windows, and headlights. The vehicle could mix fuel with thickener and then pump both the mixture and compressed air into the tanks of waiting flame throwers. In the cargo compartment, two rectangular fuel storage tanks flanked a central circular mixing tank, and the air compressor was located to the mixing tank's front. A power takeoff operated the air compressor, and the vehicle engine cooling system was designed to preheat and cool the compressor and heat the mixing tank when required. The air systems were designed for a pressure of 3000±200psig and a maximum rate of 50cfm, and 2000±100psig. The XM45E1 was sent to Vietnam in 1968 with the 11th Armored Cavalry Regiment and notably worked alongside the self-propelled flame thrower carrier M132 series.