785G (Tier 4 Final / Stage V)

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Nominal Rated Payload152 ton (US) (138 t)
Engine ModelCat® 3512E
Gross Power - SAE J19951600 HP (1193 kW)
Chassis Weight186661 lb (84668 kg)
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
Gross Power - SAE J19951600 HP (1193 kW)
Chassis Weight186661 lb (84668 kg)
Body Weight - MSD46738 lb (21200 kg)
ROPS StandardsROPS (Rollover Protective Structure) for cab offered by Caterpillar meets ISO 3471:2008 ROPS and ISO 13459:2012 criteria.
Steering StandardsISO 5010:2007
Fuel Tank410 gal (US) (1552 l)
Front Axle - Empty48%
Body Raise Time - High Idle15.2 s (15.2 s)
Nominal Rated Payload (33.00R51 Tires)152 ton (US) (138 t)
Standard Dual Slope Weight51892 lb (23538 kg)
DEF Tank36 gal (US) (136 l)
Body Power Down- High Idle15.9 s (15.9 s)
Nominal Rated Payload (36.00R51 Tires)154 ton (US) (140 t)
Standard Dual Slope Volume (SAE 2:1)102 yd³ (78 m³)
Body Lower Time - Float High Idle15.9 s (15.9 s)
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.
Cooling Fan Drive - Direct Drive - Operator Sound Level (ISO 6396:2008)77 dB(A) (77 dB(A))
Height - Top of ROPS17.09 ft (5208 mm)
Rear Axle - Empty52%
Body Lower Time - Float Low Idle16.2 s (16.2 s)
Overall Body Length39.32 ft (11985 mm)
Cooling System100 gal (US) (379 l)
Front Axle - Loaded - Target33%
Machine Clearance Diameter - ISO 7457:1997 (33.00R51 tires)108.92 ft (33.2 m)
Standard MSD Weight46711 lb (21188 kg)
Rated Gross Machine Weight (33.00R51 tires)550000 lb (249476 kg)
Inside Body Length27.29 ft (8318 mm)
Engine Crankcase54 gal (US) (204 l)
Steering Angle36 degrees
Rear Axle - Loaded - Target67%
Rated Gross Machine Weight (36.00R51 tires)564000 lb (255826 kg)
Standard MSD Volume (SAE 2:1)130 yd³ (99 m³)
Bore6.7 in (170 mm)
Differential - Final Drives139 gal (US) (527 l)
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)
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).
Steering System - Includes Tank45 gal (US) (170 l)
Rear Axle - Tail12.56 ft (3829 mm)
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)
Loading Height - Empty17.39 ft (5299 mm)
Torque Converter - Transmission System - Including Sump46 gal (US) (175 l)
EmissionsMeets U.S. EPA Tier 4 Final / EU Stage V emissions standards.
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)
Standard Tire33.00R51 (E3 and E4)
Brake Surface - Front9487 in² (61270 cm²)
Total Final Drive Reduction Ratio22.75:1
Note (1)Separate steering system and separate torque converter/transmission system prevents cross contamination.
Cylinder Stroke - Rear6.5 in (165 mm)
Brake Surface - Rear13908 in² (89728 cm²)
Optional Tire36.00R51 (Michelin and Bridgestone)
Note (1)Chassis weight includes standard mandatory attachments, 33R51 tires, all operating fluid levels full and 100% fuel.
NoteWeight distributions optimized with Cat body.
Note (1)Body weight only. Does not include liners.
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)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)Contact your local Cat dealer for DEF infrastructure recommendations.
Top Speed - Loaded34 mile/h (54.8 km/h)
Note (1)Twin, two-stage hydraulic cylinder mounted outside main frame; double-acting cylinders in second stage.
StandardsISO 3450:2011
NoteMaximum travel speeds with standard 33.00-R51 tires.
Note (2)Estimated weight of debris is not included in operating chassis weight.
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)Power raise in both stages; power down in second stage.
Note (2)Contact your local Cat dealer for site specific body recommendations.
Note (3)Body weight varies depending on body selection and configuration.
Note (3)Automatic body lower modulation reduces impact on frame.
Note (4)Refer to the Cat Mining Truck 10/10/20 Overload Policy (AEXQ0250) for maximum gross machine weight limitations.
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


From slip-resistant surfaces and guard rails to state-of-the-art collision avoidance technologies, the Cat 785G is infused with features to help operators feel safe and confident on the job.

— Standard Cat® Detect system
— Enhanced traction control system
— LED lighting, 600 mm (24 in) wide walkways
— Primary Access improved head clearance (2 m / 6.5 ft)
— Fully enclosed rotating components
— Multi-functional lockout tagout box
— LED berm light helps with awareness of work area at night
— Optional Working at Heights and Powered Access stairway


Nearly 5% reduction in cycle times thanks to Advanced Productivity Electronic Control Strategy (APECS)
— Smoother and faster shifts
— Better acceleration and gear optimization


6% higher TKPH / TMPH (tonne-kilometer-per-hour / ton-mile-per-hour) thanks to larger tire options.
— With the 36R51 tire option, particularly flat long haul high speed applications can take advantage of higher payload and higher TKPH.


Like all Cat mechanical-drive trucks, the 785G features four-corner oil-cooled brakes and Automatic Retarding Control to improve handling and machine control so operators can work quickly and confidently.

Options to fit your operation

The 785G 3512E 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


The individual components, software, systems and engine that go inside a Cat truck have different purposes, but they have one very important thing in common: They are all manufactured by Caterpillar and supported by the Cat dealer network.

This integration ensures that the entire truck — from body to bumper, engine to electronics — can be fully optimized to deliver the lowest cost per ton.


No one knows more about how to get the most from a piece of Cat equipment than your local Cat dealer. This one-of-a-kind, on-the-ground support network delivers expert service, integrated solutions, after-sales support, fast and efficient parts fulfilment, world-class rebuild and remanufacturing capabilities, and more.

Cat dealers operate as nearly 200 local businesses — each one fully embedded in and committed to the geographic area it serves. That means you work with people you know, who know your business, and who respond on your timeframe.


Governments and regulatory agencies mandate that you establish and follow environmentally sound policies and practices as you meet the demand for mined materials. We're focused on doing our part to make sure our trucks help you meet those regulations.


We've designed the 785G with a number of enhancements that lessen its impact on the environment. Features like oil renewal systems, continuous rear axle filtration, extended life filters and longer maintenance intervals decrease the amount of waste contributed to the environment.
— The optional Tier 4 Final engine reduces NOx and particulate matter. And because they're more efficient, the 785s burn less fuel, and there is zero fuel burn during retarding.

We also continue to research alternative energy sources such as biofuels (B20) and a liquefied natural gas-supplied Dynamic Gas Blending solutions to find new ways to reduce emissions. In addition, we preserve raw materials, conserve energy and reduce emissions through the Cat Reman program, which returns end-of-life components to like-new condition.


The 785 is available in two options to meet the emissions regulations where you operate. The 785 is available in those countries that are less strictly regulated. The optional Tier 4 Final / Stage V engine meets the strictest regulations.


Cat trucks are designed to last over 100,000 hours, and many are going well beyond that. The frame, powertrain, engine and components are built to be rebuilt — using new, remanufactured or rebuilt parts and components — so you can take advantage of multiple lives of like-new performance at a fraction-of-new price.


Contradicting a common belief that bigger is better, the 785G has a weight advantage over larger trucks so you can haul more with every load. The 785G maintains the same payload and same pass match as previous models, even with the Tier 4 Final system installed.


The 785G is powered by the 3512E engine, which delivers high power and reliability and contributes to overall lower operating costs. The 12-cylinder four-stroke design uses long, effective power strokes for more complete fuel combustion and optimum fuel efficiency.

The 23% net torque rise provides unequaled lugging force during acceleration, on steep grades and in rough underfoot conditions. High displacement, low rpm rating and conservative horsepower ratings mean more time on the haul roads and less time in the maintenance shop.

Lowering Total Fluid Consumption Cost

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

Cat® MineStar™ Solutions

Whether you want to address a single challenge or make step changes in the overall safety, efficiency and productivity of your surface operation, Cat® MineStar™ has a solution for you. MineStar is the mining industry's most comprehensive and thoroughly integrated suite of technology offerings.


Cat Fleet helps you identify opportunities to improve truck efficiency in ways that reduce costs, boost productivity and add real value to your bottom line.
— Eliminate Queuing
— Optimize Shift Changes
— Reduce Fuel Stops


This autonomous hauling solution helps improve productivity, efficiency and profitability while reducing overall costs.

What if your trucks could respond to calls to the shovel, move into position, haul to dump points and even report for maintenance — all without an operator on board? That's what Cat Command for hauling enables.

But this autonomous Cat MineStar solution is more than just an operator-free system. It takes advantage of the most sophisticated technologies available to deliver a next-generation haulage solution — one that boosts safety, productivity and availability on busy mine sites, especially those in difficult or remote locations. With autonomous hauling, the future is here — and we're there to help you bring it to your operation.


With the MineStar Detect proximity detection system, you can equip your 785G with cameras to give your operators a better view of what's happening around their equipment — or combine cameras and radar into a true object detection system that automatically alerts operators to hazards.

You can even add satellite capabilities to provide proximity warnings and avoidance zones, seat-belt monitoring that encourages operators to buckle up, and in-cab systems that intervene when they detect fatigue or distraction.

Road Analysis Control (RAC)

Optional system monitors haul road conditions by measuring frame rack and pitch to improve haul road maintenance, cycle times, tire life and fuel efficiency.


When it comes to truck bodies, one size does not fit all. And when it comes to your Cat truck, Cat bodies are the best choice. We follow a dynamic approach to engineering — treating the body as part of a system rather than a static structure. Cat bodies are designed to be an integral part of the entire vehicle system, ensuring you achieve maximum chassis life.
— They're sized to meet payload requirements without compromise to vehicle balance, braking or control.
— From the design to the materials, manufacturing to shipping, the entire process meets Cat standards of quality and control.
— The Caterpillar exclusive 10/10/20 payload guidelines help achieve a balance of excellent payload with safe operation.


— Standard MSD base body weight: 21 188 kg / 46,711 lb
— Standard MSD Volume (SAE 2:1) range: 99 - 115 m3(130 - 150 yd3)
— Optional application-specific body liners
— Built-in carryback reduction features (front wall curved transition and corner pop-out plates)


— Standard Dual Slope base body weight 23 538 kg / 51,892 lb
— Standard Dual Slope Volume (SAE 2:1) 78 m3 /102 yd3


— Application-specific side wall and tail extensions
— Body exhaust heat
— 450 bhn base plates for improved impact and wear
— MSD and DS bodies compatible to all previous generation trucks


— Extended interval filters with ground access
— Fluid level sight glasses
— Grouped service points
— New centralized service center option
— Extended coolant life (12,000 hours)
— Extended hydraulic and TC/transmission filter life (500 to 1,000 hours)
— Modular HVAC and radiator
— Cleaner hydraulic and electrical routings
— 100% airless electric start option
— S•O•S℠ and pressure ports for faster, safer oil sampling and troubleshooting
— Brake wear indicator allows planned maintenance
— Ground level filters with extended service intervals for faster, safer PMs
— Option to fully remove air system, which simplifies and reduces required maintenance

Modular systems improve serviceability

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.

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)