The M878 Truck, Tractor, 5 Ton, 4x2, Yard Type is NSN 2320-01-044-8376. This tractor is used to move semi-trailers or trailers in local, yard or dock environments. It has an engine with 225bhp@2800rpm, automatic 5-speed transmission, air brakes and 12.00x20 tires. The overall bumper to bumper length is 191 1/2 inches and 116 inches from the center of the front axle to the center of the rear axle. The towed load allowance is 44,480 lbs.