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Komatsu

D85A-21

Crawler Dozer

Operating Weight
53,881 lb
Max Speed - Forward
3.8 mph
Gross Power
228.0 hp
All crawler dozers
Komatsu D85A-21 Crawler Dozer
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Specifications

45 data points

Operating Specifications

Operating Specifications specifications
Operating Weight53,881 lb
Max Speed7.4 mph
Fuel Capacity126.9 gal
Cooling System Fluid Capacity20.9 gal
Final Drives Fluid Capacity10.9 gal
Engine Oil Capacity7.2 gal
Hydraulic Fluid Capacity26.7 gal
Operating Voltage24 V

Engine

Engine specifications
Engine ModelS6D125E
Displacement674 in³
Power Measured @2,000 rpm
Gross Power228.0 hp
Number of Cylinders6
AspirationTurbocharged
Torque Measured @1,400 rpm
Max Torque737 lb-ft

Hydraulic System

Hydraulic System specifications
Pump Flow Capacity51.3 gal/min
Relief Valve Pressure2,774 psi
Pump TypeGear -type pump

Dimensions

Dimensions specifications
Ground Clearance17 in
Height - Top of Cab100 in
Length of Track on Ground113 in
Width to Outside of Tracks103 in
Length with Bucket on Ground175 in
Width Over Tracks103 in
Length w/ Blade270 in
Length w/o Blade187 in

Transmission

Transmission specifications
Max Speed - Forward3.8 mph
Max Speed - Reverse4.9 mph
Transmission TypeTF
Number of Forward Gears3
Number of Reverse Gears3

Undercarriage

Undercarriage specifications
Ground Pressure8 psi
Track Gauge79 in
Number of Track Rollers per Side7
Number of Shoes per Side39
Number of Carrier Rollers per Side2
Standard Shoe Size22 in
Ground Contact Area4,931 in³
Track Pitch9 in
Length of Track on Ground113 in
Track Shoe Width22 in

Standard Blade

Standard Blade specifications
Width148 in
Height55 in
Capacity6.91 yd³

Comparable machines

Other crawler dozers in a similar weight class.