Komatsu D39PX-21 KOMSTAT II Crawler dozers research

Engine model

SAA4D102E-2

Operating weight

8,899 kg

Max speed forward

8.53 kph

Drive type

Dual-path, hydrostatic transmission

Blade width

3 mm

Displacement

3932 cu cm

Aspiration

turbocharged and air-to-air aftercooled

Number of cylinders

4

Net power

70.84 kw

Length with blade

4.21 m

Blade height

0.76 mm

Width over tracks

2.44 m

Final drives fluid cap

3.41 liters

Engine oil cap

12.49 liters

Ground contact area

76118.08 cm3

Number of shoes per side

39

Track pitch

17.78 cm

Tracks length

2 m

Ground pressure

0.3 bar

Number of track rollers per side

6

Track width

63.5 cm

Track gauge

1.8 m

Cooling fluid cap

32.17 liters

Fuel cap

165.03 liters

Hydraulic fluid cap

46.93 liters

Max speed reverse

8.53 kph

Number of reverse gears

3

Number of forward gears

3

Blade angle

25 degrees