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Caterpillar 773D Off-Highway Truck

Body Hoists

Body Lower Time - Float12.5 seconds
Body Raise Time - High Idle9.5 seconds
Pump Flow - High Idle148.46 gpm
Relief Valve Setting - Raise2498.27 psi


Centerline Front Tire Width10.8 ft
Dump Ground Clearance2.3 ft
Dump Height28.9 ft
Front Canopy Height14.6 ft
Ground Clearance2 ft
Inside Body Length21.3 ft
Loading Height - Empty12.5 ft
Operating Width12.9 ft
Overall Height13.2 ft
Overall Height - Body Raised29 ft
Overall Length31.8 ft
Overall Width14.7 ft
Wheel Base13.8 ft
Wheelbase13.8 ft


Load Capacity - heaped46.1 cu yd
Load Capacity - Struck34.8 cu yd
Lower Time12.5 seconds
Raise Time9.5 seconds


Bore5.4 in
Displacement1647.7 cu in
Engine ModelCat 3412E TA-HEUI
Flywheel Power650 hp
Gross Power682.6 hp
Gross Power - SAE J1995650 hp
Max Torque1706.8 lbs ft
Net Power643.7 hp
Net Power - 80/1269/EEC34 hp
Net Power - Cat650 hp
Net Power - ISO 924941 hp
Net Power - SAE J134953.6 hp
Number of Cylinders12
Power Measured @2000 rpm
Stroke6 in

Final Drives

Planetary RatioPlanetary

Operating Specifications

Body Capacity - SAE 2:144.6 cu yd
Body Capacity - Struck34 cu yd
Brake/Hoist System Fluid Capacity35.2 gal
Circle Clearance Diameter78.8 ft
Cooling System Fluid Capacity36.2 gal
Diff and Final Drive Fluid Capacity37 gal
Engine Oil Capacity20.1 gal
Fuel Capacity185 gal
Lower Time12.5 seconds
Maximum Capacity96260 lbs
Nominal Payload Class (100%)96260 lbs
Operating Voltage24 volts
Raise Time9.5 seconds
Steering System Fluid Capacity9 gal
Tire Size24.00R35
Top Speed - Loaded41 mph

Service Refill Capacities

Brake Hoist System - Includes Tank103.9 gal
Cooling System39.9 gal
Fuel Tank185 gal
Steering System - Including Tank21.4 gal
Steering Tank14.6 gal
Torque Converter - Brake - Hoist Hydraulic Tank58.2 gal
Torque Converter - Transmission System - Including Sump26.5 gal


Standard Tire24.00R35 (E-4)


Forward - 16.3 mph
Forward - 28.6 mph
Forward - 311.7 mph
Forward - 415.6 mph
Forward - 521.2 mph
Forward - 628.6 mph
Forward - 740.9 mph
Max Speed38.7 mph
Number of Gears - Forward7
Number of Gears - Reverse1
Reverse7.46 mph


Empty Weight87082.6 lbs
Front Axle - Empty47.3%
Front Axle - Loaded33.3%
Loaded Weight219007.2 lbs
Operating Weight - Empty88600 lbs
Operating Weight - Loaded204000 lbs
Rear Axle - Empty52.7%
Rear Axle - Loaded66.7%
Weight Distribution Front - empty47.3%
Weight Distribution Front - loaded33.3%
Weight Distribution Rear - empty52.7%
Weight Distribution Rear - loaded66.7%

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39.04690 \\ -77.49030 \\ Ashburn \\ PA