Challenger produced its MT855E farm tractor model From 2014 in United states with a Cab standard with air-conditioning cabin. Talking dimensions and weight, this model weighs 42596 lbs or 19321 kg 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 MT855E is powerd by a diesel engine it has 1025 ci or 16.8 L 12 cylinders 48 valves ,it can produce 490 hp or 365.4 kW and has a torque of 1740 lb-ft or 2359.4 Nm at 1500 (rpm) the fuel tank capacity is 330 gal or 1249.1 L. This machine has crawler wheel drive system,16 forward and 4 reverse Caterpillar transmission system.