John Deere produced its 6145J farm tractor model From 2010 in United states with a Four-post ROPS cabin. Talking dimensions and weight, this model weighs 11,290 lbs or 5121 kg has , 195.6 inches [496 cm] of length and 112.7 inches [286 cm] of height while maintaining a wheelbase of 104.3 inches [264 cm] and a ground clearance of 22.4 inches [56 cm] the front tread is about 62.9 to 82.6 inches while the rear tread is 66.5 to 104.3 inches . This tractor can fit ag tires of 18.4-26 front and 18.4-26 back . This John Deere 6145J is powerd by a diesel engine it has 414.4 ci or 6.8 L 6 cylinders ,it can produce 145 hp or 108.1 kW at 2100 (rpm), and has a torque of 448.4 lb-ft or 608.0 Nm at 1400 (rpm) the fuel tank capacity is 83.2 gal or 314.9 L. This machine has 4x4 MFWD 4WD wheel drive system,16 forward and reverse John Deere PowrQuad transmission system.