785G (Tier 4 Final / Stage V)

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Nominal Rated Payload152 ton (US) (138 t)
Engine ModelCat 3512E HD
Gross Power - SAE J1995:20141600 HP (1193 kW)
Gross Power - SAE J19951600 HP (1193 kW)
What will it take to boost your bottom line? The efficiency gains that come from a transmission designed to deliver a smoother ride and better speed on grade? An engine that gives you a choice of power options, so you can either match your current fleet or reduce cycle times? The productivity increase that comes when operators are working comfortably in a large, quiet cab with ergonomic controls? With the Cat® 785G, you get all of this — and more.


Nominal Rated Payload152 ton (US) (138 t)
Engine ModelCat 3512E HD
Gross Power - SAE J1995:20141600 HP (1193 kW)
Gross Power - SAE J19951600 HP (1193 kW)
Chassis Weight186661 lb (84668 kg)
Nominal Payload Capacity (33.00R51 tires)*146 ton (US) (132 t)
Steering StandardsISO 5010:2007
Fuel Tank410 gal (US) (1552 l)
Nominal Rated Payload (36.00R51 Tires)148 ton (US) (134 t)
Body Raise Time - High Idle15.2 s (15.2 s)
ROPS StandardsROPS (Rollover Protective Structure) for cab offered by Caterpillar meets ISO 3471:2008 ROPS and ISO 13459:2012 criteria.
Standard Dual Slope Weight51892 lb (23538 kg)
Front Axle - Empty48%
DEF Tank36 gal (US) (136 l)
Gross Machine Operating Weight (GMW) (36R51 tires)564000 lb (255826 kg)
Rear Axle - Empty52%
Body Power Down- High Idle15.9 s (15.9 s)
Standard Dual Slope Volume (SAE 2:1)102 yd³ (78 m³)
Rated Gross Machine Weight (36.00R51 tires)550000 lb (249476 kg)
Turning Diameter - ISO 7457:1997 (33.00R51 tires)97.75 ft (29.8 m)
FOPS StandardsFOPS (Falling Objects Protective Structure) meets ISO 3449:2005 and ISO 13459:2012 Level II criteria.
Height - Top of ROPS17.09 ft (5208 mm)
Cooling Fan Drive - Direct Drive - Operator Sound Level (ISO 6396:2008)77 dB(A) (77 dB(A))
Body Lower Time - Float High Idle15.9 s (15.9 s)
Body Weight Range21 275 kg-30 623 kg (46,903 lb-67,512 lb)
Standard MSD Weight46711 lb (21188 kg)
Note (1)GMW depends on tire selection. Consult your tire manufacturer for maximum loaded top speed.
Machine Clearance Diameter - ISO 7457:1997 (33.00R51 tires)108.92 ft (33.2 m)
Cooling System100 gal (US) (379 l)
Front Axle - Loaded - Target33%
Overall Body Length39.32 ft (11985 mm)
Body Lower Time - Float Low Idle16.2 s (16.2 s)
Standard MSD Volume (SAE 2:1)130 yd³ (99 m³)
Engine Crankcase54 gal (US) (204 l)
Inside Body Length27.29 ft (8318 mm)
Steering Angle36 degrees
Rear Axle - Loaded - Target67%
Note (2)Refer to the Cat Mining Truck 10/10/20 Overload Policy (AEXQ0250) for maximum gross machine weight limitations.
Bore6.7 in (170 mm)
Differential - Final Drives139 gal (US) (527 l)
Note (3)*Includes standard liners and MSD II (Mine Specific Design) body.
Stroke8.5 in (215 mm)
Overall Length39.23 ft (11957 mm)
Wheel Base17 ft (5180 mm)
Steering Tank29 gal (US) (110 l)
Displacement3573 in³ (58.56 l)
Rear Axle - Tail12.56 ft (3829 mm)
Steering System - Includes Tank45 gal (US) (170 l)
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/kg (18,390 Btu/lb) when used at 29° C (84.2° F).
Brake/Hydraulic Tank135 gal (US) (511 l)
Note (2)No engine derating required up to 2987 m (9800 ft) altitude per standard conditions.
Ground Clearance3.29 ft (1004 mm)
Note (3)Selectable 1,450 hp configuration.
Brake Hoist System - Includes Tank160 gal (US) (606 l)
Dump Clearance3.7 ft (1128 mm)
EmissionsMeets U.S. EPA Tier 4 Final / EU Stage V emissions standards.
Loading Height - Empty17.39 ft (5299 mm)
Torque Converter - Transmission System - Including Sump46 gal (US) (175 l)
Rear Sidewall Height2.87 ft (874 mm)
Inside Body Depth - Maximum9.15 ft (2790 mm)
Overall Height - Body Raised39.48 ft (12032 mm)
Operating Width24.72 ft (7535 mm)
Centerline Front Tire Width15.91 ft (4850 mm)
Engine Guard Clearance3.41 ft (1038 mm)
Overall Canopy Width24.81 ft (7562 mm)
Outside Body Width22 ft (6714 mm)
Inside Body Width19.72 ft (6010 mm)
Front Canopy Height19.8 ft (6035 mm)
Rear Axle - Clearance3.25 ft (990 mm)
Centerline of Rear Dual Tire Width14.06 ft (4285 mm)
Overall Tire Width20.59 ft (6277 mm)
Forward - 17.5 mile/h (12.1 km/h)
Forward - 210.2 mile/h (16.3 km/h)
Forward - 313.8 mile/h (22.2 km/h)
Forward - 418.6 mile/h (29.9 km/h)
Forward - 525.2 mile/h (40.6 km/h)
Forward - 634 mile/h (54.8 km/h)
Reverse6.8 mile/h (11 km/h)
Cylinder Stroke - Front12.6 in (320 mm)
Total Final Drive Reduction Ratio22.75:1
Standard Tire33.00R51 (E3 and E4)
Brake Surface - Front9487 in² (61270 cm²)
NoteMaximum travel speeds with standard 33.00-R51 tires.
Brake Surface - Rear13908 in² (89728 cm²)
Note (1)Separate steering system and separate torque converter/transmission system prevents cross contamination.
Cylinder Stroke - Rear6.5 in (165 mm)
Optional Tire36.00R51 (Michelin and Bridgestone)
Note (2)Contact your local Cat dealer for DEF infrastructure recommendations.
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 (1)Body weight only. Does not include liners.
StandardsISO 3450:2011
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 (1)Twin, two-stage hydraulic cylinder mounted outside main frame; double-acting cylinders in second stage.
Note (1)Chassis weight includes standard mandatory attachments, 33R51 tires, all operating fluid levels full and 100% fuel.
Note (2)Caterpillar recommends the customer evaluate all job conditions and consult the tire manufacturer for proper tire selection.
NoteOil cooled four corner hydraulic actuated disc brakes.
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.
Note (2)Contact your local Cat dealer for site specific body recommendations.
Note (2)Power raise in both stages; power down in second stage.
Note (2)Estimated weight of debris is not included in operating chassis weight.
Note (3)Body weight varies depending on body selection and configuration.
Note (3)Automatic body lower modulation reduces impact on frame.
Cooling Fan Drive - Optional Clutch - Operator Sound Level (ISO 6396:2008)75 dB(A) (75 dB(A))
Cooling Fan Drive - Direct Drive - Machine Sound Level (ISO 6395:2008)121 dB(A) (121 dB(A))
Cooling Fan Drive - Optional Clutch - Machine Sound Level (ISO 6395:2008)120 dB(A) (120 dB(A))

Benefits and Features

The 785G 3512E HD engine gives you the choice of power ratings: 1,450 hp to match your current fleet performance or 1,600 hp for faster cycle times. Advanced Productivity Electronic Control Strategy for Transmission delivers a smoother ride, better acceleration and gear optimization.

Standard Cat® Detect system, LED lighting, 600 mm (24 in) wide walkways, guarding of rotating components and hydraulic brake system with enhanced traction control system. Optional Working at Heights and Powered Access stairway.

Modular HVAC system, modular radiator, improved ground level serviceability, oil sight glass, 1,000 hour hydraulic filter, and Tier 4 SCR system improves serviceability and reduces downtime.

New, quieter and larger, ergonomic deluxe cab. Electronic transmission controls and Cat comfort seats provides a smoother ride. Full size trainer door and improved head clearance on platform.

Improved 3512E HD engine meets U.S. EPA Tier 4 Final emission standards, and the features Cat Selective Catalytic Reduction (SCR) system that provides the least Total Fluid Consumption cost with greater reliability.

With 36R51 tire option, particularly flat long haul high speed applications can take advantage of higher payload and higher TKPH.

Standard Equipment

  • 33R51 power train with standard rims
  • Cat 3512E high displacement Tier 4 Final / Stage V engine and aftertreatment
    – Automatic engine and DEF thermal management
    – Automatic low voltage idle management
    – Air cleaner with precleaner (two)
    – Turbocharging (four) with air-to-air aftercooler
    – Mechanical Electronic Unit Injector (MEUI™-A) fuel system
    – Automatic starter protection
    – Automatic ether starting aid
  • Hydraulic braking system:
    – Automatic retarder control, adjustable
    – Oil-cooled, multi-disc (front and rear): Service, retarding, parking, secondary; Anti roll back strategy
    – Engine over speed protection
    – Park brake integrated with gear selector
    – Brake release motor (towing)
    – Extended life brake disc material
  • Transmission:
    – Six-speed, automatic power shift with Electronic Clutch Pressure Control (ECPC)
    – Advanced Productivity Electronic Control Strategy (APECS)
    – Body-up reverse neutralizer
    – Body-up shift inhibitor
    – Downshift/reverse shift inhibitor
    – Directional shift management
    – Enhanced Traction Control System
    – Programmable top gear
    – Oil level sensor
    – Neutral coast inhibitor
    – Neutral start switch
    – Lock-up torque converter
    – Rear axle continuous lubrication/filtration
  • Jump start/battery charge receptacle
  • Ground accessible power control box
    – Ethernet VIMS™ port and VIMS™ lamp
    – Engine starter, transmission and battery lockouts
  • Brushless alternator, 225 amp
  • Alarm, backup
  • 24V electrical system, low maintenance batteries (2) 93 amp-hour
  • LED payload indicator lamps
  • LED lighting system:
    – Backup and hazard lights
    – Curb lights, (one) RH side, (one) LH side
    – Turn signals (front and rear)
    – Engine compartment lights
    – Headlights with low-high beam selector
    – Ladder light and service deck lights
    – Stop/tail lights
  • Unitized hydraulic powered HVAC with automatic temperature control
  • Four point seat belt for operator seat
  • Power windows
  • Heated mirrors, right and left
  • Heated and ventilated operator seat
  • Operator and trainer air suspension seats
  • Storage locations for operator gear
  • Provision for customer accessory mounting
  • Diagnostic connection port COM3 and Ethernet
  • Dome courtesy light and map lights
  • Fire suppression ready
  • Delayed Engine Shutdown
  • Integrated object detection system with touchscreen display
  • Interactive touchscreen vehicle information display
    – Day/night mode
    – Action alarm
    – Quad gauge display
  • Gauges and indicators panel:
    – Critical oil and coolant temperatures
    – Fuel and DEF level
    – Engine system, brake and transmission fault indicators
    – Speedometer, Tachometer
  • Entertainment radio ready:
    – Speakers
    – Antenna (AM/FM/WB/satellite radio)
    – Radio mounting provisions and 12V power supply
  • Retractable front visor
  • 12V auxiliary power connection
  • ROPS cab, insulated/sound suppressed
  • Hoist, body control (electric)
  • Stairway and walkway access, 600 mm (24 in)
  • Steering wheel, tiltable, telescopic
  • Windshield wiper, intermittent control
  • Self-filling to windshield washer fluid from AC condensate
  • Extended Life Coolant, –35° C (–30° F)
  • Product Link™ Elite
  • Turbine air starter with air tank, air horn and automatic lubrication system
  • Auxiliary “buddy” dumping quick connect
  • Auxiliary steering quick connect (towing)
  • Hydraulic Filters, 1,000 hours
  • Guards for rotating components
  • Fast fill fuel and DEF remote fill system
  • Secondary steering (automatic)
  • Tie off points
  • Tow hooks (front) and tow pin (rear)
  • Vital Information Management System (VIMS)
  • Auxiliary connection ‘user defined shutdown'
  • Sight glasses for hydraulic oils
  • S•O•S℠ ports

Optional Equipment

  • Quick change rims
  • 36R51 larger tire power train arrangement
  • Prelube, engine
  • Rear axle cooler
  • Clutch control, variable speed cooling fan
  • MSD volume: 99 m³ (130 yd³)
  • 100 m³ (131 yd³)
  • Dual slope body: 78 m³ (102 yd³)
  • Body specific side wall and tail extensions
  • Customizable body liner packages
  • Body heat exhaust
  • Rock ejectors
  • Rear body lighting group: Directional signals, Stop/tail lights
  • Electronic Throttle Lock
  • Digital Payload Display
  • Auxiliary rear work lights, (one) RH side, (one) LH side
  • No air – electric starter with 93-amp hour batteries (four), electric horn and automatic lubrication system
  • Powered access stairway
  • Fuel heater, fuel water separator
  • Road Analysis Control (RAC)
  • Cold weather start (block heater)
  • Ground accessible fluid service center, hydraulic and coolant
  • Bumper towing – center pin kit
  • Communication Ar – Minestar™ radio
  • Miscellaneous:
    – Fire extinguisher, portable
    – Hub odometer, kilometers
    – Wheel chocks
    – Gauge, brake wear indicator
    – Five piece crankcase guards
    – Working at heights protection
  • Coolant, –50° C (–58° F)