SPECS / COMPARISON

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Manufacturer-sourced values side by side. No performance equivalence or ranking is applied across different machine classes.

Feature	Komatsu D40PL-5Dozer	Komatsu D39PX-21 KOMSTAT IIDozer
Type	Crawler Dozer	Crawler Dozer
Horsepower	70.8 kW	70.8 kW
Operating Weight	11640.0 kg	8899.5 kg
Engine Manufacturer	Komatsu	Komatsu
Engine Model	6 D105-1	SAA4D102E-2
Gross Power	70.8 kW	—
Number of Cylinders	6	4
Displacement	6490.9 cc	3932.9 cc
Power Measured RPM	2350 RPM	—
Transmission Type	Direct Drive	Dual Power Shift
Number of Forward Gears	5	3
Number of Reverse Gears	4	3
Cab Height	283.5 cm	277.4 cm
Width Over Track	350.5 cm	243.8 cm
Length Overall	463.3 cm	420.6 cm
Length without Blade	359.7 cm	—
Length of Track on Ground	259.1 cm	237.7 cm
Track Gauge	228.6 cm	179.8 cm
Ground Clearance	45.7 cm	—
No of Carrier Rollers Per Side	2	—
No of Shoes Per Side	43	39
No of Track Rollers Per Side	7	6
Shoe Size	122.2 cm	63.5 cm
Weight (Operating)	11640.0 kg	8899.5 kg
Track Pitch	17.5 cm	177.8 cm
Net Power	—	70.8 kW
Aspiration	—	Turbocharged with aftercooled
Max Speed Forward	—	8.5 km/h
Max Speed Reverse	—	8.5 km/h
Ground Pressure	—	0.3 bar
Fuel Capacity	—	165.0 l
Engine Oil Capacity	—	12.5 l
Cooling System Capacity	—	32.2 l
Hydraulic Capacity	—	46.9 l
Final Drives Capacity	—	3.4 l
Ground Contact Area	—	76118.1 cm³
Source	heavyequipments.net archive (imported 2026-10)	heavyequipments.net archive (imported 2026-10)

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Side-by-side specification comparisons generated from the manufacturer-sourced model files. · 7,051