The Shibaura SD4043 is a compact utility tractor produced from 1980 to 1985 as part of the SD 3 Series. It features a 2.1L 4-cylinder liquid-cooled diesel engine producing 40 hp (29.8 kW). The tractor offers both 12-speed gear and 24-speed creeper transmission options, with four-wheel drive and an open operator station. It was built in Matsumoto, Japan, and has a rear Type I hitch and a 540 rpm rear PTO. The SD4043 is equipped with agricultural tires sized 8-18 front and 12.4/11-28 rear, and weighs 4030 lbs (1828 kg).