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Komatsu HD785-1 Off-Highway Truck


Dump Ground Clearance3 ft
Dump Height29.6 ft
Ground Clearance2.6 ft
Overall Height16 ft
Overall Length33.3 ft
Overall Width16.5 ft
Wheelbase15.6 ft


Dump Angle64 deg
Load Capacity - heaped67.8 cu yd
Rated Payload171960.6 lbs


Displacement2306.7 cu in
Engine ModelKT-2300
Gross Power900 hp
Net Power877 hp
Rated Engine Speed121.6 rpm
Torque Measured @turbocharged rpm

Operating Specifications

Alternator Supplied AmperageKomatsu TORQFLOW planetary gear
Cooling System Fluid Capacity63.5 gal
Diff and Final Drive Fluid Capacity59.2 gal
Engine Oil Capacity39.7 gal
Fuel Capacity327.6 gal
Hydraulic System Fluid Capacity121.6 gal
Tire Size24.00-49-42PR

Service Refill Capacities

Brake/Hoist Hydraulic Tank171960.6 gal


Max Speed43.5 mph
Number of Gears - Forward6
Number of Gears - Reverse1
Transmission TypeKomatsu TORQFLOW planetary gear


Empty Weight113538.1 lbs
Loaded Weight285619.9 lbs
Weight Distribution Front - empty48.2%
Weight Distribution Front - loaded32.3%
Weight Distribution Rear - empty51.8%
Weight Distribution Rear - loaded67.7%

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39.04690 \\ -77.49030 \\ Ashburn \\ PA