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Komatsu D21A-8 Crawler dozers research

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2025

Komatsu D21A-8 Crawler dozers Technical specifications

General

Engine model

4D94LE-2

Operating weight

3,941 kg

Max speed forward

4.35 kph

Operational specifications

Drive type

Komatsu HYDROSHIFT transmission

Blade width

2 mm

Engine

Displacement

3048 cu cm

Aspiration

Naturally aspirated

Gross power

32.14 kw

Number of cylinders

4

Net power

29.83 kw

Dimensions

Length with blade

3.38 m

Blade height

0.69 mm

Width over tracks

1.34 m

Refill capacities

Final drives fluid cap

6.06 liters

Engine oil cap

6.43 liters

Undercarriage

Ground contact area

25727.75 cm3

Number of shoes per side

37

Ground pressure

0.33 bar

Number of track rollers per side

5

Track width

29.97 cm

Service refill capacities

Cooling fluid cap

9.84 liters

Fuel cap

60.18 liters

Hydraulic fluid cap

20.82 liters

Transmission

Max speed reverse

5.63 kph

Number of reverse gears

2

Number of forward gears

2

Blades

Blade angle

25 degrees

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Download datasheets

Komatsu D21A-8 vs Komatsu D21A-8E0

Komatsu D21A-8 Crawler dozers

Komatsu D21A-8E0 Crawler dozers

General
Engine model
4D94LE-2
4D94LE-2
Operating weight
3,941 kg
3,710 kg
Max speed forward
4.35 kph
4.35 kph
Market Average
-
-
price
-
-
Years
2025
2025
Operational specifications
Drive type
Komatsu HYDROSHIFT transmission
-
Blade width
2 mm
-
Engine
Displacement
3,048 cu cm
3,048 cu cm
Aspiration
Naturally aspirated
-
Gross power
32.14 kw
32.29 kw
Number of cylinders
4
4
Net power
29.83 kw
-
Max torque
-
174.08 Nm
Dimensions
Length with blade
3.38 m
3.26 m
Blade height
0.69 mm
-
Width over tracks
1.34 m
-
Ground clearance
-
0.37 m
Refill capacities
Final drives fluid cap
6.06 liters
6.06 liters
Engine oil cap
6.43 liters
6.81 liters
Undercarriage
Ground contact area
25,727.75 cm3
25,727.75 cm3
Number of shoes per side
37
37
Ground pressure
0.33 bar
0.31 bar
Number of track rollers per side
5
5
Track width
29.97 cm
30.23 cm
Service refill capacities
Cooling fluid cap
9.84 liters
10.22 liters
Fuel cap
60.18 liters
60.18 liters
Hydraulic fluid cap
20.82 liters
21.2 liters
Transmission
Max speed reverse
5.63 kph
5.63 kph
Number of reverse gears
2
2
Number of forward gears
2
2
Blades
Blade angle
25 degrees
-

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