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Komatsu

D39EX-21

Crawler Dozer

Operating Weight
18,780 lb
Max Speed - Forward
5.3 mph
Net Power
95.0 hp
All crawler dozers
Komatsu D39EX-21 Crawler Dozer
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Specifications

29 data points

Operating Specifications

Operating Specifications specifications
Operating Weight18,780 lb
Fuel Capacity43.6 gal
Cooling System Fluid Capacity8.5 gal
Final Drives Fluid Capacity0.9 gal
Engine Oil Capacity3.3 gal
Hydraulic Fluid Capacity12.4 gal

Engine

Engine specifications
Engine ModelSAA4D102E-2
Displacement240 in³
Net Power95.0 hp
Aspirationturbocharged and air-to-air aftercooled

Dimensions

Dimensions specifications
Height - Top of Cab109 in
Length of Track on Ground94 in
Width Over Tracks84 in
Length w/ Blade166 in

Transmission

Transmission specifications
Max Speed - Forward5.3 mph
Max Speed - Reverse5.3 mph
Transmission Typedual path hydrostatic transmission
Number of Forward Gears3
Number of Reverse Gears3

Undercarriage

Undercarriage specifications
Ground Pressure6 psi
Track Gauge66 in
Number of Track Rollers per Side6
Number of Shoes per Side39
Standard Shoe Size18 in
Ground Contact Area3,365 in³
Track Pitch65 in

Standard Blade

Standard Blade specifications
Width108 in
Height3 in
Blade Angle (both directions)25 °

Comparable machines

Other crawler dozers in a similar weight class.