David Brown produced its 4600 Selectamatic farm tractor model From 1968 Until 1971 in United states this exact model was priced at 4,600 USD with a Open operator station cabin. Talking dimensions and weight, this model weighs 4300 lbs or 1950 kg has 68.375 inches [173 cm] (min) of width, 121.5 inches [308 cm] of length while maintaining a wheelbase of 79.75 inches [202 cm] the front tread is about 52 to 72 inches while the rear tread is 52 to 80 inches . This tractor can fit ag tires of 7.50-16 front and 7.50-16 back . This David Brown 4600 Selectamatic is powerd by a gasoline engine it has 164.4 ci or 2.7 L 3 cylinders and has a torque of 140 lb-ft or 189.8 Nm at 1400 (rpm) the fuel tank capacity is 13.75 gal or 52.0 L. This machine has 4x2 2WD wheel drive system,12 forward and 4 reverse transmission system.