Challenger produced its MT845 farm tractor model From 2002 Until 2004 in United states with a Cab standard with air-conditioning cabin. Talking dimensions and weight, this model weighs 40000 lbs or 18144 kg has 142.1 inches [360 cm] of width, 265.9 inches [675 cm] of length and 138.1 inches [350 cm] of height while maintaining a wheelbase of 118.1 inches [299 cm] and a ground clearance of 18.7 inches [47 cm] the front tread is about 90 to 128 inches while the rear tread is 90 to 128 inches . This tractor can fit ag tires of 18-inch track front and 18-inch track back . This Challenger MT845 is powerd by a diesel engine it has 729 ci or 11.9 L 6 cylinders ,it can produce 380 hp or 283.4 kW at 2100 (rpm), the fuel tank capacity is 305 gal or 1154.4 L. This machine has crawler wheel drive system,16 forward and 4 reverse Caterpillar transmission system.