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Komatsu

D31PX-21 II

Crawler Dozer

Operating Weight
16,870 lb
Max Speed - Forward
5.3 mph
Net Power
75.0 hp
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Komatsu D31PX-21 II Crawler Dozer
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Specifications

31 data points

Operating Specifications

Operating Specifications specifications
Operating Weight16,870 lb
Fuel Capacity43.6 gal
Cooling System Fluid Capacity7.1 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 Power75.0 hp
Number of Cylinders4
AspirationTurbocharged

Hydraulic System

Hydraulic System specifications
Relief Valve Pressure2,990 psi

Dimensions

Dimensions specifications
Ground Clearance16 in
Height - Top of Cab107 in
Width Over Tracks90 in
Length w/ Blade158 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 Pressure4 psi
Track Gauge66 in
Number of Track Rollers per Side6
Number of Shoes per Side40
Standard Shoe Size24 in
Ground Contact Area4,061 in³
Track Pitch65 in

Standard Blade

Standard Blade specifications
Width126 in
Height3 in
Blade Angle (both directions)25 °

Comparable machines

Other crawler dozers in a similar weight class.