Mining Trucks

785 Mining Truck (LRC, Tier 4 Final / EU Stage V)

Nominal Rated Payload (33.00R51 Tires)

153 ton (US)

Rated Gross Machine Weight (33.00R51 tires)

550,000 lb

Gross Power - SAE J1995

1,600 HP


The 785 Large Mining Truck was Caterpillar’s first entry into the mining industry more than three decades ago and has been a proven performer on sites around the world ever since. And now it’s the first to combine a game-changing level of efficiency with industry-leading physical availability to deliver the next generation of productive hauling. It all starts with the operator, who sits in a state-of-the-art environment designed for efficiency and equipped with features that increase comfort, automate functions, provide real-time information and boost confidence. The 785 also delivers significant improvements in serviceability and reliability, enhanced connectivity and easier technology integration. These improvements — and more — take an already proven truck to the next level of productivity.

    Body Hoists


    Twin, two-stage hydraulic cylinders with snubbing valve.

    Pump Flow - High Idle

    192.7 gal/min

    Relief Valve Setting - Raise

    2,500 psi

    Body Raise Time - High Idle

    15.2 s

    Body Lower Time - Float High Idle

    15.9 s

    Body Lower Time - Float Low Idle

    16.2 s

    Body Power Down- High Idle

    15.9 s

    Braking System

    Service Brakes

    Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated

    Front Wet Disc Brake Surface Area

    9,487 in²

    Rear - Wet Disc Brake Surface Area

    13,908 in²


    Service and Secondary: ISO 3450:2011

    Parking Brake

    Four corner, multi disc, spring applied, hydraulically released


    Air Conditioning

    HFC - 134A refrigerant: 24,500 Btu/h

    Heater / Defroster

    33,300 Btu/h


    The operator sound pressure level, 77 dB(A) with direct drive and 75 dB9A) with optional clutch, tested to ISO 6396:2008.

    ROPS Standards (1)

    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.

    Capacity - MSD II - 100% Fill Factor


    72 m^3 / 94 yd^3

    Heaped (SAE 2:1)

    99 m^3 / 129 yd^3


    Consult your local Cat dealer for body recommendations.

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

    Height - Top of ROPS

    17.09 ft

    Overall Body Length

    39.32 ft

    Inside Body Length

    27.29 ft

    Overall Length

    39.23 ft

    Wheel Base

    17 ft

    Rear Axle - Tail

    12.56 ft

    Ground Clearance

    3.29 ft

    Dump Clearance

    3.7 ft

    Loading Height - Empty

    17.39 ft

    Inside Body Depth - Maximum

    9.15 ft

    Overall Height - Body Raised

    39.48 ft

    Operating Width

    24.72 ft

    Centerline Front Tire Width

    15.91 ft

    Engine Guard Clearance

    3.41 ft

    Overall Canopy Width

    24.81 ft

    Outside Body Width

    22 ft

    Inside Body Width

    19.72 ft

    Front Canopy Height

    19.8 ft

    Rear Axle - Clearance

    3.25 ft

    Centerline of Rear Dual Tire Width

    14.06 ft

    Overall Tire Width

    20.59 ft


    Gross Power - SAE J1995

    1,600 HP

    Net Power - SAE J1349

    1,509 HP

    Engine Model

    Cat® 3512E

    Emissions Rating

    Fuel Optimized


    6.7 in


    8.5 in


    3,573 in³

    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)

    U.S. EPA Tier 4 Final / EU Stage V available for applicable markets.

    Note (3)

    Additional fuel optimized selectable power ratings: 1,450 hp

    Final Drives


    Double reduction, planetary with full floating axles.

    Differential Ratio


    Planetary Ratio


    Total Reduction Ratio


    Service Refill Capacities

    Fuel Tank

    410 gal (US)

    Diesel Exhaust Fluid Tank

    36 gal (US)

    Cooling System

    100 gal (US)


    54 gal (US)

    Front Wheels - Each

    gal (US)

    Differential - Final Drives

    139 gal (US)

    Steering Tank

    29 gal (US)

    Steering System - Includes Tank

    45 gal (US)

    Brake/Hoist Tank

    135 gal (US)

    Brake Hoist System - Includes Tank

    160 gal (US)

    Torque Converter - Transmission System - Including Sump

    46 gal (US)


    Steer Angle

    36 °

    Turning Diameter - ISO 7457:1997 (33.00R51 tires)

    97.75 ft

    Steering Standards

    ISO 5010:2007



    Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top & bottom double shear clevis attachments

    Effective Cylinder Stroke - Front

    12.6 in

    Effective Cylinder Stroke - Rear

    6.5 in

    Rear axle - Oscillation

    +/- 5 degrees


    Standard Tire


    Optional Tire



    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.


    Forward - 1

    7.5 mile/h

    Forward - 2

    10.2 mile/h

    Forward - 3

    13.8 mile/h

    Forward - 4

    18.6 mile/h

    Forward - 5

    25.2 mile/h

    Forward - 6

    34 mile/h


    6.8 mile/h

    Top Speed - Loaded

    34 mile/h


    Maximum travel speeds with standard 33.00-R51 tires.

    Weight Distributions - Approximate

    Front Axle - Empty


    Rear Axle - Empty


    Front Axle - Loaded


    Rear Axle - Loaded



    Weight distributions optimized with Cat body.

    Weights - Approximate

    Nominal Rated Payload (33.00R51 Tires)

    153 ton (US)

    Rated Gross Machine Weight (33.00R51 tires)

    550,000 lb

    Nominal Rated Payload (36.00R51 Tires)

    157 ton (US)

    Rated Gross Machine Weight (36.00R51 tires)

    564,000 lb

    Chassis Weight (33.00R51 Tires)

    186,799 lb

    Chassis Weight (36.00R51 Tires)

    193,192 lb

    Body Weight

    57,779 lb

    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)

    Body weight varies depending on body selection and configuration.

      • 24V electrical system, low maintenance batteries (2) 93 amp-hour
      • Alarm, backup
      • Brushless alternator, 225 amp
      • Ground accessible power control box: Ethernet VIMS™ port and VIMS lamp; Engine starter; transmission and battery lockouts
      • Jump start/battery charge receptacle
      • LED payload indicator lamps
      • LED Lighting system: Back-up 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
    • FLUIDS
      • Extended Life Coolant to — 35° C (— 30° F)
      • 5V USB charging port
      • 12V auxiliary power connection
      • Cup holders
      • Diagnostic connection port COM3 and Ethernet
      • Delayed Engine Shutdown
      • Dome courtesy light and map lights
      • Entertainment radio ready: Speakers, Optional Antenna (AM/FM/WB/satellite radio), Radio mounting provisions and 12V power supply
      • Fire suppression ready
      • Floor mat, multi-piece & replaceable
      • Gauges and indicators panel: Critical oil and coolant temperatures; Fuel and DEF level (if applicable); Engine system, brake and transmission fault indicators; Operator selectable max. machine speed by rotary dial; Speedometer, Tachometer
      • Heated mirrors, right and left
      • Hoist, body control
      • Interactive touchscreen vehicle information display: Day/night mode; Action alarm; Quad gauge display
      • Operator and trainer air suspension seats
      • Operator Door Power Window
      • Provision for customer accessory mounting
      • Push button secure start
      • Retractable front visor
      • ROPS cab, insulated/sound suppressed
      • Stairway and walkway access, 600 mm (24 in)
      • Steering wheel, tiltable, telescopic
      • Self-filling to windshield washer fluid from AC condensate
      • Storage locations for operator gear
      • Three point seat belt for operator seat
      • Windshield wiper, intermittent control / washer
      • Unitized hydraulic powered HVAC with automatic temperature control
      • Ventilated operator seat
      • 33R51 power train with standard rims
      • Cat 3512E engine: Automatic engine and DEF thermal management (if applicable); 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 (ARC), adjustable and automatic; Brake release motor (towing); Engine over speed protection; Extended life brake disc material; Hill start assist/Anti roll back strategy; Oil-cooled, multi-disc (front and rear) — Service, retarding, parking, secondary; Park brake integrated with gear selector
      • 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
      • Turbine air starter with air tank, air horn and automatic lubrication system
      • Auxiliary "buddy" dumping quick connect
      • Auxiliary connection 'user defined shutdown'
      • Auxiliary steering quick connect (towing)
      • eOMM
      • Fast fill fuel and DEF remote fill system
      • Guards for rotating components
      • Hill Start Assist
      • Hydraulic Filters, 1,000 hours
      • Remote flash software and troubleshooting
      • Secondary steering (automatic)
      • Tie off points
      • Tow hooks (front) and tow pin (rear)
      • Sight glasses for hydraulic oils
      • S•O•S℠ ports
      • Vital Information Management System (VIMS)
    • Cat Technology Products
      • Cyber security
      • Integrated object detection system with touchscreen display
      • Tire Payload Monitoring System 2 (TPMS 2)
      • Product Link™ Elite

      • Auxiliary rear work lights, (one) LH side
      • Digital Payload Display
      • LED Lighting system: Additional lighting package, Auxiliary VIMS, Body rear, Seat & park brake
      • Workshop horn
    • Truck bodies
      • MSD II body: 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
    • FLUIDS
      • Extended Life Coolant to — 50° C (— 58° F)
      • Emergency stop
      • Deluxe Cab: Advanced cabin filtration system; Catwalk and handrails for rear cab access; Heated, cooled and ventilated front seat; Power right side window; Suspended companion seat; Storage tray
      • No air – electric starter with 93-amp hour batteries (four), electric horn and automatic lubrication system
      • Hydraulic braking system: Advanced ground control with Anti-lock Braking System (ABS) and Dynamic Stability Control (DSC)
      • Variable speed fan drive
      • Transmission: Engine pre-lubrication system; Rear axle continuous lubrication/filtration with cooler
      • 2560 L (676 gal) fuel tank (non-Tier 4)
      • Body heat exhaust
      • Bumper towing – center pin kit
      • Cold weather start (block heater)
      • Communication Ar – Minestar™ radio
      • Fire extinguisher, portable
      • Five piece crankcase guards
      • Fuel heater, fuel water separator
      • Fuel tank mud guard
      • Gauge, brake wear indicator
      • Ground accessible fluid service center, hydraulic and coolant
      • Hub odometer, kilometers
      • Powered access stairway
      • Rim Diffuser
      • Wheel chocks
      • Wireless Electronic Technician (ET)
      • Working at heights protection
    • Cat Technology Products
      • Cruise control
      • 360 degree surround view camera
      • 4G cellular/satellite dual mode
      • Connectivity bundle (includes: wireless operator ID, bluetooth key FOB to start)
      • Driver Safety System (DSS) 4.0 Ready
      • Minestar GPS
      • Minestar communication group (enables: Minestar Fleet, Aux, and Truck Spotting)
      • Oil Renewal System (ORS) (non-Tier 4)
      • Road Analysis Control (RAC)


    • Machines built tough and ready to run in rugged applications

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    • Wide inventory of rental equipment that lets you try before you buy

    • Full service and support to ensure performance and longevity