The Shibaura S445 is a compact utility tractor in the S Series by Shibaura. It features a 45 hp (33.6 kW) 2.3L 4-cylinder liquid-cooled intercooled turbocharged diesel engine, with a 12-speed hydraulic shuttle transmission. The tractor offers two- or four-wheel drive options, power steering, wet disc brakes, and an open operator station. It has a rear type I hitch with position and draft control, and a 540 rpm rear PTO. Dimensions include a 74.8 inch (189 cm) wheelbase, 137.2 inch (348 cm) length, and weights ranging from 3516 lbs (1594 kg) for 2WD to 3803 lbs (1725 kg) for 4WD. Standard tires vary by drive type, with 2WD using 6.00-16 front and 13.6-28 rear tires, and 4WD using 8.3-20 front and 13.6-28 rear tires. Electrical system is 12 volts with negative ground.