Skip to content
Komatsu

D21A-3

Crawler Dozer

Operating Weight
7,562 lb
Max Speed - Forward
4.3 mph
Gross Power
37.0 hp
All crawler dozers
Komatsu D21A-3 Crawler Dozer
1 / 5
Image 1 of 5
Image: agtrader.com.au

Specifications

28 data points

Operating Specifications

Operating Specifications specifications
Operating Weight7,562 lb
Fuel Capacity15.9 gal
Cooling System Fluid Capacity3.7 gal

Engine

Engine specifications
Engine Model4D92-1
Displacement159 in³
Power Measured @2,450 rpm
Gross Power37.0 hp
Number of Cylinders4

Dimensions

Dimensions specifications
Ground Clearance13 in
Height - Top of Cab83 in
Length of Track on Ground66 in
Width Over Tracks61 in
Length w/ Blade137 in
Length w/o Blade97 in

Transmission

Transmission specifications
Max Speed - Forward4.3 mph
Max Speed - Reverse4.0 mph
Transmission TypeHS
Number of Forward Gears3
Number of Reverse Gears3

Undercarriage

Undercarriage specifications
Ground Pressure4 psi
Track Gauge48 in
Number of Track Rollers per Side5
Number of Shoes per Side37
Standard Shoe Size12 in
Track Pitch5 in

Standard Blade

Standard Blade specifications
Width91 in
Height22 in
Capacity0.99 yd³

Comparable machines

Other crawler dozers in a similar weight class.