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Komatsu D39EX-21 KOMSTAT II Crawler dozers research

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2025

Komatsu D39EX-21 KOMSTAT II Crawler dozers Technical specifications

General

Engine model

SAA4D102E-2

Operating weight

8,518 kg

Max speed forward

8.53 kph

Operational specifications

Drive type

Dual-path, hydrostatic transmission

Blade width

2 mm

Engine

Displacement

3932 cu cm

Aspiration

turbocharged and air-to-air aftercooled

Net power

70.84 kw

Dimensions

Length with blade

4.21 m

Blade height

0.76 mm

Width over tracks

2.13 m

Refill capacities

Final drives fluid cap

3.41 liters

Engine oil cap

12.49 liters

Undercarriage

Ground contact area

55142.59 cm3

Number of shoes per side

39

Track pitch

16.51 cm

Tracks length

2 m

Ground pressure

0.39 bar

Number of track rollers per side

6

Track width

45.72 cm

Track gauge

1.68 m

Service refill capacities

Cooling fluid cap

32.17 liters

Fuel cap

165.03 liters

Hydraulic fluid cap

46.93 liters

Transmission

Max speed reverse

8.53 kph

Number of reverse gears

3

Number of forward gears

3

Blades

Blade angle

25 degrees

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Download datasheets

Komatsu D39EX-21 KOMSTAT II vs Komatsu D39EX-22

Komatsu D39EX-21 KOMSTAT II Crawler dozers

Komatsu D39EX-22 Crawler dozers

General
Engine model
SAA4D102E-2
SAA4D107E-1
Operating weight
8,518 kg
9,450 kg
Max speed forward
8.53 kph
-
Market Average
-
-
price
-
-
Years
2025
2025
Operational specifications
Drive type
Dual-path, hydrostatic transmission
Dual-path, hydrostatic transmission
Blade width
2 mm
-
Engine
Displacement
3,932 cu cm
-
Aspiration
turbocharged and air-to-air aftercooled
-
Net power
70.84 kw
78.3 kw
Dimensions
Length with blade
4.21 m
-
Blade height
0.76 mm
-
Width over tracks
2.13 m
-
Refill capacities
Final drives fluid cap
3.41 liters
-
Engine oil cap
12.49 liters
-
Undercarriage
Ground contact area
55,142.59 cm3
-
Number of shoes per side
39
-
Track pitch
16.51 cm
-
Tracks length
2 m
-
Ground pressure
0.39 bar
-
Number of track rollers per side
6
-
Track width
45.72 cm
-
Track gauge
1.68 m
-
Service refill capacities
Cooling fluid cap
32.17 liters
-
Fuel cap
165.03 liters
-
Hydraulic fluid cap
46.93 liters
-
Transmission
Max speed reverse
8.53 kph
-
Number of reverse gears
3
3
Number of forward gears
3
3
Blades
Blade angle
25 degrees
-

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