The Komatsu D65EX-15 crawler tractor has a Komatsu SAA6D114E-3 direct injection, turbocharged, air-to-air-aftercooled, six-cylinder diesel engine producing 205 flywheel horsepower (FWHP). It has a track gauge of 74.4 inches (188 cm) with 20-in (51-cm) shoes. It comes standard with a spacious hexagonal designed cab, hydraulically-driven radiator cooling fan, gull-wing engine side doors, completely protected blade tilt lines, electronic monitoring system, hydrostatic steering system, palm command control system, parallel link undercarriage system, modular power train, Torqflow transmission, spur-gear, double-reduction final drives, bolt-on segmented sprocket teeth, and wet, multiple disc brakes. It also features KOMTRAX technology, which sends equipment information and diagnostics to a secure website to be analyzed.

The Komatsu D65EX-15 has semi-U tilt, straight tilt, and angle dozer blades with a 4.6 to 7.3-cubic yard (3.5 to 5.6 m³) capacity. Its operating weight is 45,129 pounds (20,470 kg).

The D65EX-15 has a closed-center load sensing hydraulic system delivering fluid at a rate of 55 gallons (210 L) per minute at a system pressure of 2,990 lbs per square inch (PSI) (20,615 kPa).