The Shibaura SP1840 is a compact utility tractor manufactured by Shibaura. It features a 0.9L 3-cylinder liquid-cooled diesel engine producing 17.8 hp (13.3 kW). The tractor offers a 6-speed synchromesh transmission with 2 reverse gears and a 9-speed creeper transmission option. It has four-wheel drive, manual steering, mechanical drum brakes, and an open operator station. The SP1840 includes an open center hydraulic system, a rear hitch with position control and 2866 lbs (1300 kg) lift capacity, and a 540 RPM rear PTO. Dimensions include a 50.4 inch (128 cm) wheelbase, 87.2 inch (221 cm) length, and a weight of 1279 lbs (580 kg). Standard tires are 5.00-12 front and 8.3-20 rear. Electrical system features a 12-volt battery and 15 amp alternator. Variants include the 2WD SP1800 and the 4WD SP1840.