Komatsu D21A-3 Crawler dozers research
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
Download datasheets
Komatsu D21A-3 vs Komatsu D21A-5
Komatsu D21A-3 Crawler dozers
Komatsu D21A-5 Crawler dozers
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
Drive type
HS
HS
Blade width
2 mm
2 mm
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
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
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
Cooling fluid cap
14 liters
13.25 liters
Fuel cap
60.18 liters
60.18 liters
Max speed reverse
6.44 kph
5.47 kph
Number of reverse gears
3
2
Number of forward gears
3
2
Pump flow cap
-
53.37 lpm
Relief valve pressure
-
152.01 bar
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