The Kubota D1803-M-DI is a 1.8 L (1,826 cc, 111.4 cu·in) natural aspirated three-cylinders four-stroke liquid-cooled internal combustion vertical diesel engine, manufactured by Kubota for general-purpose applications. An 87.0 mm (3.43 in) cylinder bore and an 102.4 mm (4.04 in) piston stroke