The Ursus 904 is a row-crop tractor manufactured by Ursus. It features a 4.6L 4-cylinder diesel engine producing 85 hp (63.4 kW), a 16-speed transmission with 16 forward and 8 reverse gears, and four-wheel drive. The tractor includes hydraulic power steering, hydraulic brakes, and Ursomatic hydraulics with a pump flow of 12.7 gpm (48.1 lpm). The rear hitch has position control and draft sensing with a lift capacity of 8,378 lbs (3800 kg). The rear PTO operates at 540/1000 rpm. Dimensions include a wheelbase of 92.8 inches (235 cm), length of 155.3 inches (394 cm), width of 76 inches (193 cm), height of 97.1 inches (246 cm), and weight of 9,105 lbs (4130 kg). It supports various front and rear tire sizes. Electrical system is 12 volts with negative ground.