Komatsu D21A-8 vs. Komatsu D31P-18 Crawler dozers Comparison
Compare available technical data for Bulldozers. Find the right details to make your decision easier.
Comparison
Highlight differences
Aspiration
Aspiration Naturally aspirated
Aspiration -
Gross power
Gross power 32.14 kw
Gross power 52.95 kw
Net power
Net power 29.83 kw
Net power -
Number of cylinders
Number of cylinders 4
Number of cylinders 6
Power measured @
Power measured @ -
Power measured @ 2,350 rpm
Years
Years 1972-1979
Years 1993-1996
Market Average
Market Average AED 120,000
Market Average AED 210,000
Price
Price AED 70,000
Price AED 120,000
Blade angle
Blade angle 25 ยบ
Blade angle -
Blade height
Blade height 0.69 m
Blade height 0.79 m
Height - top of cab
Height - top of cab 2.47 m
Height - top of cab 2.74 m
Length with blade
Length with blade 3.38 m
Length with blade 3.87 m
Width over tracks
Width over tracks 1.34 m
Width over tracks 2.07 m
Ground clearance
Ground clearance -
Ground clearance 0.4 m
Length without blade
Length without blade -
Length without blade 3.05 m
Blade width
Blade width 2.16 m
Blade width 2.47 m
Displacement
Displacement 3,048 cu cm
Displacement 4,891.55 cu cm
Drive type
Drive type Komatsu HYDROSHIFT transmission
Drive type DPS
Engine model
Engine model 4D94LE-2
Engine model 6D95L
Max speed forward
Max speed forward 4.35 kph
Max speed forward -
Operating weight
Operating weight 3,941 kg
Operating weight 6,700 kg
Cooling fluid cap
Cooling fluid cap 9.84 liter
Cooling fluid cap -
Fuel cap
Fuel cap 60.18 liter
Fuel cap -
Hydraulic fluid cap
Hydraulic fluid cap 20.82 liter
Hydraulic fluid cap -
Engine oil cap
Engine oil cap 6.43 liter
Engine oil cap -
Final drives fluid cap
Final drives fluid cap 6.06 liter
Final drives fluid cap -
Ground contact area
Ground contact area 25,727.75 cu cm
Ground contact area -
Ground pressure
Ground pressure 0.33 bar
Ground pressure -
Number of shoes per side
Number of shoes per side 37
Number of shoes per side 41
Number of track rollers per side
Number of track rollers per side 5
Number of track rollers per side 6
Track width
Track width 29.97 cm
Track width 60.2 cm
Track gauge
Track gauge -
Track gauge 1.46 m
Track length
Track length -
Track length 2.19 m
Track pitch
Track pitch -
Track pitch 15.49 cm
Max speed reverse
Max speed reverse 5.63 kph
Max speed reverse -
Number of forward gears
Number of forward gears 2
Number of forward gears 3
Number of reverse gears
Number of reverse gears 2
Number of reverse gears 3
Performance
Looking at performance technical specs and key features the Komatsu D21A-8 Crawler dozers excels in terms of engine power at and operating weight compared to other models like the Komatsu D31P-18 Crawler dozers.
User rating
Owners operators and fleet managers recommend the Komatsu D21A-8 Crawler dozers for its high reliability and endurance in diverse applications. The same can be said about the Komatsu D31P-18 Crawler dozers.
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Featured technical specs & reviews. Valuable insights.
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