The Satoh ST-3240 is a utility tractor produced from 1978 to 1982 by Satoh. It features a Mitsubishi 1.5L 4-cylinder liquid-cooled diesel engine delivering 31.6 hp (23.6 kW). The tractor has a 15-speed transmission with 15 forward and 3 reverse gears and is equipped with four-wheel drive. It has a rear JIS1 type hitch and a rear PTO operating at 540 rpm (1.375 spline). The tractor weighs 2866 lbs (1300 kg). Variants include 2WD and 4WD models from Satoh and Mitsubishi.