The Dongfeng DF-504 is a 50 hp (37.3 kW) farm tractor manufactured by Dongfeng in Changzhou, Jiangsu, China. It features a 3.3L 4-cylinder liquid-cooled diesel engine (model JD4100T) with a rated speed of 2400 RPM. The tractor has a 12-speed transmission with 12 forward and 3 reverse gears, four-wheel drive, hydraulic power steering, and wet disc brakes. It is equipped with a rear type II hitch with a lift capacity of 1,985 lbs (900 kg) at 24 inches (610 mm) and a rear PTO with 540/1000 RPM options. The DF-504 has a wheelbase of 75.1 inches (190 cm), length of 146.7 inches (372 cm), width of 63.6 inches (161 cm), height of 85.4 inches (216 cm), and weighs 4,057 lbs (1840 kg). It rides on 7.50-16 front tires and 12.4-28 rear tires.