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785G Mining Truck

785G Mining Truck

At a Glance

Nominal Rated Payload
152 ton (US)
Engine Model
Cat® 3512E
Gross Power - SAE J1995
1600 HP
Rated Gross Machine Weight (33.00R51 tires)
550000 lb
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Weights - Approximate

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Nominal Rated Payload 152ton (US)
Rated Gross Machine Weight (33.00R51 tires) 550000lb
Rated Gross Machine Weight (36.00R51 tires) 564000lb
Chassis Weight 190741lb
Body Weight - MSD 46756lb
Nominal Rated Payload (33.00R51 Tires) 152ton (US)
Nominal Rated Payload (36.00R51 Tires) 154ton (US)
Note (1) Consult your tire manufacturer for maximum tire load.
Note (2) Chassis weight with full fuel and fluids, standard & mandatory attachments, hoist, body mounting group, rims, and tires.
Note (3) Refer to the Cat Mining Truck 10/10/20 Overload Policy (AEXQ0250) for maximum gross machine weight limitations.


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Engine Model Cat® 3512E
Gross Power - SAE J1995 1600HP
Net Power - SAE J1349 1509HP
Emissions Rating U.S. EPA Tier 4 / EU Stage V
Rated Speed 1650r/min
Bore 6.7in
Stroke 8.5in
Displacement 3573in³
Note (1) Net Power advertised is the power available at the flywheel when the engine is equipped with air intake system, exhaust system, and alternator.
Note (2) LRC configuration avaiable in applicable markets.
Note (3) Additional fuel optimized slectable power ratings: 1,450 hp

Braking System

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Service Brakes Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated
Front Wet Disc Brake Surface Area 9487in²
Brake Surface - Rear 13908in²
Parking Brake Four corner, multi disk, spring applied, hydraulically released
Standards Service and Secondary: ISO 3450:2011
Load Brake Rear service brakes

Weight Distributions - Approximate

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Front Axle - Empty 48%
Rear Axle - Empty 52%
Front Axle - Loaded - Target 33%
Rear Axle - Loaded - Target 67%
Note Weight distributions optimized with Cat body.

Service Refill Capacities

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Fuel Tank 410gal (US)
Diesel Exhaust Fluid Tank 36gal (US)
Cooling System 100gal (US)
Crankcase 54gal (US)
Front Wheels - Each 8gal (US)
Differential - Final Drives 139gal (US)
Steering Tank 29gal (US)
Steering System - Includes Tank 45gal (US)
Brake/Hoist Tank 135gal (US)
Brake Hoist System - Includes Tank 160gal (US)
Torque Converter - Transmission System - Including Sump 46gal (US)
Note (1) DEF Tank only available for Tier 4 / EU Stage V.


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Air Conditioning HFC - 134A refrigerant: 24,500 Btu/h
Heater / Defroster 33300blows/min
ROPS Standards (1) The operator sound pressure level, 77 dB(A) with direct drive and 75 dB9A) with optional clutch, complies with ISO 6396:2008.
ROPS Standards (2) ROPS (Rollover Protective Structure) meets ISO 3471:2008 for Operator and ISO 13459:2012 for Trainer.
FOPS Standards FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 for Operator and ISO 13459:2012 Level II for Trainer.


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Steering Angle 36 degrees
Turning Diameter - ISO 7457:1997 (33.00R51 tires) 97.75ft
Steering Standards ISO 5010:2007


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Standard Tire 33.00R51 (E3 and E4)
Optional Tire 36.00R51 (Michelin and Bridgestone)
Rims 610 mm (24") Rims (standard). 660 mm (26") Rims (optional).
Note (1) Quick Change Rims optional.
Note (2) Caterpillar recommends the customer evaluate all job conditions and consult tire manufacturer for proper tire selection and TKPH (TMPH) capabilities.

Final Drives

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Type Double reduction, planetary with full floating axles.
Differential Ratio 2:10:01
Planetary Ratio 10.83:1
Total Reduction Ratio 22.75:1

Capacity - MSD II - 100% Fill Factor

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Struck 72 m^3 / 94 yd^3
Heaped (SAE 2:1) 99 m^3 / 129 yd^3
Note Consult your local Cat dealer for body recommendations.

Body Hoists

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Type Twin, two-stage hydraulic cylinders with snubbing valve.
Pump Flow - High Idle 192.7gal/min
Relief Valve Setting - Raise 2500psi
Body Raise Time - High Idle 15.2s
Body Lower Time - Float High Idle 15.9s
Body Lower Time - Float Low Idle 16.2s
Body Power Down - High Idle 15.9s


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Type Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top & bottom double shear clevis attachments
Effective Cylinder Stroke - Front 12.6in
Effective Cylinder Stroke - Rear 6.5in
Rear axle - Oscillation +/- 5 degrees

Dimensions (All dimensions are approximate. MSD II Body, 33R51 tires, unloaded machine.)

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Height - Top of ROPS 17.09ft
Overall Body Length 39.32ft
Inside Body Length 27.29ft
Overall Length 39.23ft
Wheel Base 17ft
Rear Axle - Tail 12.56ft
Ground Clearance 3.29ft
Dump Clearance 3.7ft
Loading Height - Empty 17.39ft
Inside Body Depth - Maximum 9.15ft
Overall Height - Body Raised 39.48ft
Operating Width 24.72ft
Centerline Front Tire Width 15.91ft
Engine Guard Clearance 3.41ft
Overall Canopy Width 24.81ft
Outside Body Width 22ft
Inside Body Width 19.72ft
Front Canopy Height 19.8ft
Rear Axle - Clearance 3.25ft
Centerline of Rear Dual Tire Width 14.06ft
Overall Tire Width 20.59ft

Dimensions (Approximate)

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Rear Sidewall Height 2.87ft


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Forward - 1 7.5mile/h
Forward - 2 10.2mile/h
Forward - 3 13.8mile/h
Forward - 4 18.6mile/h
Forward - 5 25.2mile/h
Forward - 6 34mile/h
Reverse 6.8mile/h
Top Speed - Loaded 34mile/h
Note Maximum travel speed(s) with standard 33.00 R51 tires.