The JCB 803 PLUS is a compact, hard-working mini excavator designed for versatility and efficiency in tight spaces. It features a robust 3-cylinder, 4-stroke, water-cooled diesel engine (model 403-15) with a displacement of 91.3 cubic inches, delivering a gross power of 27.8 hp (20 kW) at 2200 rpm and a net power of 26.6 hp (19 kW), with maximum torque of 67.9 lb-ft at 2000 rpm. The hydraulic system is equipped with a triple-section gear pump, providing a nominal flow of 7.7 gpm and a main relief pressure of 2755.8 psi, ensuring responsive and reliable performance. The excavator has a maximum digging depth of 9.9 ft, a maximum cutting height of 14.4 ft, a maximum loading height of 10.6 ft, and a maximum reach along the ground of 15.6 ft. The unit measures 14.3 ft in shipping length and 8 ft in shipping height, with a width to the outside of tracks of 4.8 ft and a tail swing radius of 4.8 ft. The operating weight is 14,793.1 lbs, and the undercarriage features four track rollers per side, a shoe size of 9.1 in, and a ground pressure of 4.7 psi, allowing for stable operation on various terrains. The swing speed is 9.5 rpm, and the maximum travel speed is 2.3 mph (3 kph). The engine oil capacity is 1.4 gal, the fuel tank holds 12.7 gal, and the hydraulic system fluid capacity is 18.5 gal. The electrical system operates at 12 volts, with a 55-amp alternator.