Massey Ferguson produced its 821 farm tractor model From 1959 Until 1967 in United states with a Open operator station cabin. Talking dimensions and weight, this model has 55.1 inches [139 cm] of width, 109.5 inches [278 cm] of length and 61 inches [154 cm] of height while maintaining a wheelbase of 66.9 inches [169 cm] and a ground clearance of 18.5 inches [46 cm] the front tread is about 44.5 to 68.5 inches while the rear tread is 40.9 to 68.9 inches . This tractor can fit ag tires of 4.00-15 front and 4.00-15 back . This Massey Ferguson 821 is powerd by a gasoline engine it has 62.3 ci or 1.0 L 2 cylinders ,it can produce 20 hp or 14.9 kW at 1850 (rpm),. This machine has 4x2 2WD wheel drive system,5 forward and 1 reverse transmission system.