Chamberlain produced its 4490 farm tractor model From 1985 Until 1986 in Australia with a Cab standard with air-conditioning cabin and more than 250 units were build. Talking dimensions and weight, this model weighs 13,779 lbs or 6250 kg while maintaining a wheelbase of 115 inches [292 cm] the front tread is about 64 inches while the rear tread is 62.6 to 98.4 inches . This tractor can fit ag tires of 11.00x16 front and 11.00x16 back . This Chamberlain 4490 is powerd by a diesel engine it has 466 ci or 7.6 L 6 cylinders ,it can produce 137 hp or 102.2 kW at 2200 (rpm), and has a torque of 390.9 lb-ft or 530.1 Nm at 1500 (rpm) the fuel tank capacity is 87.2 gal or 330.1 L. This machine has 4x2 2WD wheel drive system,12 forward and 4 reverse Hi-Lo transmission system.