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Komatsu D21A-3 Crawler dozers research

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2025

Komatsu D21A-3 Crawler dozers Technical specifications

General

Engine model

4D92-1

Operating weight

3,430 kg

Blade capacity

0.76 m3

Max speed forward

6.92 kph

Operational specifications

Drive type

HS

Blade width

2 mm

Engine

Displacement

2605 cu cm

Gross power

27.59 kw

Number of cylinders

4

Dimensions

Length with blade

3.47 m

Length without blade

2.47 m

Blade height

0.57 mm

Ground clearance

0.34 m

Width over tracks

1.55 m

Undercarriage

Number of shoes per side

37

Track pitch

13.72 cm

Tracks length

1 m

Ground pressure

0.29 bar

Number of track rollers per side

5

Track width

30.23 cm

Track gauge

1.22 m

Service refill capacities

Cooling fluid cap

14 liters

Fuel cap

60.18 liters

Transmission

Max speed reverse

6.44 kph

Number of reverse gears

3

Number of forward gears

3

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Download datasheets

Komatsu D21A-3 vs Komatsu D21A-5

Komatsu D21A-3 Crawler dozers

Komatsu D21A-5 Crawler dozers

General
Engine model
4D92-1
4D92-2P
Operating weight
3,430 kg
3,620 kg
Blade capacity
0.76 m3
0.76 m3
Max speed forward
6.92 kph
4.51 kph
Market Average
-
AED 125,000
price
-
-
Years
2025
2025
Operational specifications
Drive type
HS
HS
Blade width
2 mm
2 mm
Engine
Displacement
2,605 cu cm
2,941 cu cm
Gross power
27.59 kw
29.08 kw
Number of cylinders
4
4
Max torque
-
147.1 Nm
Dimensions
Length with blade
3.47 m
3.41 m
Length without blade
2.47 m
2.47 m
Blade height
0.57 mm
0.59 mm
Ground clearance
0.34 m
0.34 m
Width over tracks
1.55 m
1.62 m
Undercarriage
Number of shoes per side
37
37
Track pitch
13.72 cm
13.72 cm
Tracks length
1 m
1 m
Ground pressure
0.29 bar
0.3 bar
Number of track rollers per side
5
5
Track width
30.23 cm
30.23 cm
Track gauge
1.22 m
1.31 m
Service refill capacities
Cooling fluid cap
14 liters
13.25 liters
Fuel cap
60.18 liters
60.18 liters
Transmission
Max speed reverse
6.44 kph
5.47 kph
Number of reverse gears
3
2
Number of forward gears
3
2
Hydraulic system
Pump flow cap
-
53.37 lpm
Relief valve pressure
-
152.01 bar

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