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785G Mining Truck

785G Mining Truck

At a Glance

Nominal Payload Capacity
146 ton (US)
Engine Model
Cat 3512E HD
Gross Power - SAE J1995
1600 HP
6.7 in
Request a Demo Machine Comparison


Operating Specifications

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Nominal Payload Capacity 146ton (US)
Gross Machine Operating Weight (GMW) (33R51 tires) 550000lb
Gross Machine Operating Weight (GMW) (36R51 tires) 564000lb
Nominal Payload Capacity (33.00R51 tires)* 146ton (US)
Nominal Payload Capacity (36.00R51 tires)* 148ton (US)
Note (3) *Includes standard liners and MSD II (Mine Specific Design) body.
Note (1) GMW depends on tire selection. Consult your tire manufacturer for maximum loaded top speed.
Note (2) 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 HD
Gross Power - SAE J1995 1600HP
Bore 6.7in
Stroke 8.5in
Displacement 3573in³
Gross Power - SAE J1995:2014 1600HP
Note (1) Power rating conditions: – At 1,650 rpm rated speed based on SAE J1995:2014 standard air inlet conditions of 25° C (77° F) and 99 kPa (29.31 in Hg) dry barometric pressure. – Based on fuel of 35° API gravity (at 15.6° C or 60° F) having a LHV of 42 780 kJ
Note (2) No engine derating required up to 2987 m (9800 ft) altitude per standard conditions.
Emissions Meets U.S. EPA Tier 4 Final emissions standards.
Note (3) Selectable 1,450 hp configuration.


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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
Total Final Drive Reduction Ratio 22.75:1
Note Maximum travel speeds with standard 33.00-R51 tires.

Service Refill Capacities

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Cooling System 100gal (US)
Steering Tank 29gal (US)
Brake/Hydraulic Tank 135gal (US)
Brake Hoist System - Includes Tank 160gal (US)
DEF Tank 36gal (US)
Differential - Final Drives 139gal (US)
Engine Crankcase 54gal (US)
Fuel Tank 410gal (US)
Steering System - Includes Tank 45gal (US)
Note (1) Separate steering system and separate torque converter/transmission system prevents cross contamination.
Note (2) Contact your local Cat dealer for DEF infrastructure recommendations.
Torque Converter - Transmission System - Including Sump 46gal (US)

Weights - Approximate

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Empty Operating Chassis Weight 186661lb
Body Weight Range 21 275 kg-30 623 kg (46,903 lb-67,512 lb)
Note (1) Chassis weight includes standard mandatory attachments, 33R51 tires, all operating fluid levels full and 100% fuel.
Note (2) Estimated weight of debris is not included in operating chassis weight.
Note (3) Body weight varies depending on body selection and configuration.


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Cylinder Stroke - Front 12.6in
Cylinder Stroke - Rear 6.5in

Braking System

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Brake Surface - Rear 13908in²
Note Oil cooled four corner hydraulic actuated disc brakes.
Brake Surface - Front 9487in²
Standards ISO 3450:2011

Body Hoists

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Body Lower Time - Float High Idle 15.9s
Body Lower Time - Float Low Idle 16.2s
Body Power Down- High Idle 15.9s
Body Raise Time - High Idle 15.2s
Note (1) Twin, two-stage hydraulic cylinder mounted outside main frame; double-acting cylinders in second stage.
Note (2) Power raise in both stages; power down in second stage.
Note (3) Automatic body lower modulation reduces impact on frame.

Weight Distributions - Approximate

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Front Axle - Loaded - Target 33%
Rear Axle - Loaded - Target 67%
Front Axle - Empty 48%
Rear Axle - Empty 52%


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Cooling Fan Drive - Direct Drive - Operator Sound Level (ISO 6396:2008) 77dB(A)
Cooling Fan Drive - Direct Drive - Machine Sound Level (ISO 6395:2008) 121dB(A)
Cooling Fan Drive - Optional Clutch - Operator Sound Level (ISO 6396:2008) 75dB(A)
Cooling Fan Drive - Optional Clutch - Machine Sound Level (ISO 6395:2008) 120dB(A)
Note (1) Testing done per specified standard work cycle procedures and conditions with 50% HVAC blower fan speed. Optional clutch control fan measurement done at 70% of maximum engine cooling fan speed.
Note (2) Hearing protection may be needed when operating with an open operator station/cab (when not properly maintained or doors/windows open) for extended periods or in a noisy environment.

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
Rear Sidewall Height 2.87ft
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


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Optional Tire 36.00R51 (Michelin and Bridgestone)
Note (1) Productive capabilities of the 785G truck are such that, under certain job conditions, TKPH (TMPH) capabilities could be exceeded and, therefore, limit production.
Note (2) Caterpillar recommends the customer evaluate all job conditions and consult the tire manufacturer for proper tire selection.
Standard Tire 33.00R51 (E3 and E4)


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Standard Dual Slope Weight 51892lb
Standard Dual Slope Volume (SAE 2:1) 102yd³
Standard MSD Weight 46711lb
Standard MSD Volume (SAE 2:1) 130yd³
Note (1) Body weight only. Does not include liners.
Note (2) Contact your local Cat dealer for site specific body recommendations.


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Turning Diameter - ISO 7457:1997 (33.00R51 tires) 97.75ft
Machine Clearance Diameter - ISO 7457:1997 (33.00R51 tires) 108.92ft
Steering Angle 36 degrees
Steering Standards ISO 5010:2007


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ROPS Standards ROPS (Rollover Protective Structure) for cab offered by Caterpillar meets ISO 3471:2008 ROPS and ISO 13459:2012 criteria.
FOPS Standards FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 and ISO 13459:2012 Level II criteria.