The Komatsu PC09-1 excavator is fitted with a four-cycle, water-cooled, two-cylinder Komatsu 2D70E engine. This engine offers 8.7 horsepower at 2,200 revolutions per minute and a 34.7-cubic-inch displacement. Komatsu's D21A-8 dozer features a water-cooled four-cylinder Komatsu 4D94LE-2 engine. This engine offers 43.1 horsepower at 2,450 revolutions per minute and a 186-cubic-inch displacement.
The PC09-1 excavator can hold 2.9 gallons of fuel, 0.6 gallons of engine coolant, 0.5 gallons of engine oil and 2.4 gallons of hydraulic fluid. The D21A-8 dozer is fitted with a 15.9-gallon fuel tank. This dozer can also hold 2.6 gallons of coolant and 5.5 gallons of hydraulic fluid.
Komatsu's PC09-1 can travel at 1.9 miles per hour in high gear. In low gear, this excavator travels at 0.9 miles per hour. Komatsu's D21A-8 dozer can travel forward at a rate of either 1.6 or 2.7 miles per hour and reverse at a rate of either 2.1 or 3.5 miles per hour.