John Deere produced its 990 farm tractor model From 2000 Until 2007 in United states with a Two-post ROPS cabin. Talking dimensions and weight, this model weighs 2594 lbs or 1176 kg has , 123 inches [312 cm] of length and 84.2 inches [213 cm] of height while maintaining a wheelbase of 68.9 inches [175 cm] the front tread is about 48.2 inches while the rear tread is 46.2 inches . This tractor can fit ag tires of 6.5-16 front and 6.5-16 back . This John Deere 990 is powerd by a diesel engine it has 121.7 ci or 2.0 L 4 cylinders ,it can produce 38.5 hp or 28.7 kW at 2700 (rpm), the fuel tank capacity is 8.5 gal or 32.2 L. This machine has 4x2 2WD wheel drive system,9 forward and 3 reverse Collar Shift transmission system.