789 Next Generation



Technical Specifications
Benefits and Features
360 View

The Cat® 789 Mining Truck is the most popular 193-tonne (213-ton) truck in the mining industry — and for good reason. Developed specifically for high-production mining applications, the 789 simply does its job, no matter the application or conditions. It continues a legacy of durability and reliability while meeting emission standards for any location in the world. It uses less fuel, has expanded safety options and reduces maintenance downtime. It offers fast speed on grade and a high production capability thanks to a payload advantage over the competition. More than 30 new features improve performance and keep operators safe, comfortable and in control. The 789 offers the lowest cost per ton in its size class and high reliability — reducing overall owning and operating costs.

Weights - Approximate
Nominal Rated Payload 213 ton (US)
Rated Gross Machine Weight 715000 lb
Body Weight 60406 lb
Note (1) Consult your tire manufacturer for maximum tire load
Note (2) Chassis weight with full fuel and fluids, standard and mandatory attachments, hoist, body mounting group, rims, and tires.
Gross Power - SAE J1995:2014 2100 HP
Engine Model Cat® 3516E
Net Power - SAE J1349:2011 1975 HP
Rated Speed 1650 r/min
Emissions Rating Fuel Optimized
Bore 6.7 in
Stroke 8.5 in
Displacement 4766 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) Optional 1417 kW / 1,900 HP engine rating.
Note (3) U.S. EPA Tier 4 Final / EU Stage V optional engine available for applicable markets.
Weight Distributions - Approximate
Front Axle - Empty 50%
Rear Axle - Loaded 67%
Rear Axle - Empty 50%
Front Axle - Loaded 33%
Final Drives
Planetary Ratio 10.83:1
Total Reduction Ratio 25.46:1
Type Double reduction, planetary with full floating axles
Differential Ratio 2.35:1
Forward - 1 7.8 mile/h
Forward - 2 10.6 mile/h
Forward - 3 14.4 mile/h
Forward - 4 19.4 mile/h
Forward - 5 26.3 mile/h
Forward - 6 35.5 mile/h
Reverse 7.3 mile/h
Top Speed - Loaded 35.5 mile/h
Standard Tires 37 R57
Optional Tires 40 R57
Optional Tire 42/90 R57
Rims 29” x 57” Rims
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.
Braking System
Service Brakes Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated
Front Wet Disc Brake Surface Area 12662 in²
Rear - Wet Disc Brake Surface Area 20861 in²
Standards (Service and Secondary) ISO 3450:2011
Parking Brake Four-corner, Multi-disc, Spring applied, Hydraulically Released
Capacity - HP Body - 100% Fill Factor
Struck 77 m3(101 yd3)
Heaped (SAE 2:1)* 143 m3(187 yd2)
Note (1) Consult your local Cat dealer for body recommendations
Body Hoists
Type Twin, two-stage hydraulic cylinders with snubbing valve.
Pump Flow - High Idle 106.5 gal/min
Relief Valve Setting - Raise 2749 psi
Body Raise Time - High Idle 14 s
Body Lower Time - Float 16 s
Type Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top and bottom double shear clevis attachments
Effective Cylinder Stroke - Front 4.12 in
Effective Cylinder Stroke - Rear 3.67 in
Rear axle - Oscillation +/- 5 degrees
Service Refill Capacities
Fuel Tank - Standard 550 gal (US)
Fuel Tank 1000 gal (US)
Fuel Tank (Tier 4) 55 gal (US)
Diesel Exhaust Fluid Tank 62 gal (US)
Cooling System 180 gal (US)
Crankcase 77 gal (US)
Front Wheels - Each 5.8 gal (US)
Differentials 161 gal (US)
Steering System 42 gal (US)
Steering System - Includes Tank 46 gal (US)
Brake Hoist System 169 gal (US)
Brake Hoist System - Includes Tank 347 gal (US)
Torque Converter - Transmission System - Including Sump 55 gal (US)
Air Conditioning (HFC - 134A refrigerant) 24,500 Btu/hr
Heater / Defroster 33300 Btu/h
ROPS Standards (1) The operator sound pressure level, 77 dB(A) with direct drive and 75 dB(A) with optional clutch, tested to 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 Level II for Operator and ISO 13459:2012 Level II for Trainer.
Steer Angle 36.07 °
Steering Standards ISO 5010:2007
Dimensions (Approximate)
Height - Top of ROPS 5550 mm
Overall Body Length 12945 mm
Inside Body Length 8730 mm
Overall Length 12970 mm
Wheel Base 57000 mm
Rear Axle - Tail 3856 mm
Ground Clearance 1304 mm
Dump Clearance 1585 mm
Loading Height - Empty 6147 mm
Rear Sidewall Height 1010 mm
Inside Body Depth - Maximum 3075 mm
Overall Height - Body Raised 11534 mm
Operating Width 7822 mm
Centerline Front Tire Width 5410 mm
Engine Guard Clearance 1290 mm
Overall Canopy Width 7769 mm
Outside Body Width 7123 mm
Inside Body Width 6920 mm
Front Canopy Height 6739 mm
Rear Axle - Clearance 1263 mm
Centerline of Rear Dual Tire Width 4695 mm
Overall Tire Width 7120 mm


  • The 789 delivers a faster speed on grade than competitive trucks thanks to the efficient 3516E 16-cylinder engine and mechanical drivetrain.
  • Expanded tire options allow mines to take advantage of higher speeds, particularly in flat, long-haul, high-speed applications.
  • The Advanced Power Electronic Control Strategy (APECS) enables faster cycle times and faster acceleration thanks to more continuous torque and rimpull.
  • The 789 has an empty machine weight advantage, allowing it to haul more with every load, delivering a cost per ton advantage over competitive trucks.
  • Productivity-enhancing features such as Hill Start Assist with Anti-Rollback, Enhanced Traction Control, Dynamic Stability Control (DSC), Anti-lock Brake System (ABS), Machine Speed Limiting and Cruise Control improve machine responsiveness and controllability while improving cycle times and reducing operator fatigue.


  • Wide, slip-resistant surfaces and hand rails, plus an optional powered access ladder, improve access and egress.
  • Superior control is delivered by a patented braking system that provides immediate, fade-resistant braking and retarding.
  • Visibility is enhanced by wide-angle mirrors plus an optional 360-degree Surround View camera, which offers a bird’s-eye view.
  • The Cat MineStar™ Object Detection system combines radar and camera systems to warn operators about light vehicles or stationary hazards within the immediate vicinity of their machines.
  • The optional Driver Safety System alerts the operator if fatigue or distraction are detected.


  • The cab provides 34% more operator space than D-Series models. It’s 17% wider and offers 11% more legroom and 19% more shoulder room.
  • Controls, levers and switches are positioned for ease of use.
  • With 40% less Sound Pressure Level (SPL), automated temperature control and cab filtration, operators enjoy a safer and more comfortable environment.
  • A walkthrough cab with fully adjustable center console, easy-to-adjust seat and increased leg room make the cab ideal for operators of all sizes.
  • The next generation seat is four-point-restraint ready and incorporates features like thigh tilt and extensions, air adjustable side and lumbar bolsters, and heated and cooled cushions.


  • Higher resolution displays improve access to information. Machine data, controls and guidance information are consolidated onto two 10-inch screens.
  • The optional Auto Hoist feature automatically raises the body and controls engine speed, simplifying operation and minimizing cycle times.
  • Speed coaching gives operators real-time feedback on how to operate the truck to maximize its productivity.
  • The payload monitoring system comes with more accurate measurements, providing immediate feedback to the operator.


  • The new modular HVAC (heating, ventilation and air conditioning) system improves reliability and consolidates components so the entire system can be removed and replaced quickly.
  • A modular radiator reduces engine removal and installation time and enables rebuilds to be completed off the truck.
  • New remote flash and remote troubleshooting capabilities provide immediate access to the latest software updates and make it possible to troubleshoot the machine remotely.
  • Time spent on regular maintenance procedures is reduced thanks to features such as extended service intervals; ground-level access to tanks, filters, drains and engine shutdown; easier access to daily service points as well as major components; a maintenance platform with access to the engine; and optional fast-fill service center.
  • A 100% airless electric start option eliminates air system maintenance from the machine and improves uptime.


  • The 789 frame uses a box-section design, incorporating two forgings and 21 castings in high-stress areas with deep penetrating and continuous wrap-around welds to resist damage from twisting loads without adding extra weight. The mild steel frame provides flexibility, durability and resistance to impact loads.
  • Resiliently mounted to the main frame to reduce vibration and sound, the integral ROPS is designed as an extension of the truck frame.
  • Component life is enhanced thanks to the standard rear-axle continuous filtration feature. Cleaner oil helps promote lubrication that leads to longer life
  • The frame, powertrain, engine and components are built to be rebuilt — delivering multiple lives of like-new performance at a fraction-of-new price.


  • Cat bodies are the best choice for the 789. They’re designed to be an integral part of the entire vehicle system, ensuring you achieve maximum chassis life.
  • The High Performance (HP) body features a lightweight, simplified and durable design that provides complete front machine coverage and extended overhead protection.
  • Available in several sizes, the MSD II body is ideal for mature mines with good operational and maintenance practices. It can be lined or unlined, with a site-specific body designed to maximize performance.
  • Intended for tough applications including greenfield sites and contracting mines, the Dual Slope body provides excellent load retention, maintains a low center of gravity with optimum load distribution and reduces shock loading.
  • The X Body incorporates the latest structural designs and offers more volume at a lower weight. It uses the Cat Mine Specific Design to create a body that is properly sized to meet the specific requirements of heavy-duty applications.


  • The 789 is designed to use less fuel, which reduces engine emissions, and there is zero fuel burn during retarding. The Tier 4 Final engine reduces NOx and particulate matter.
  • The Cat 3516E provides emission choices: fuel-optimized engine for less regulated countries or optional engine compliant to U.S. EPA Tier 4 Final / EU Stage V emissions standards.
  • The 789 engine is compatible with diesel fuel blended with lower-carbon intensity fuels such as biofuels and renewable fuels.
  • 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.
  • By rebuilding machines and components, the Cat Rebuild and Cat Reman programs preserve raw materials, conserve energy and reduce emissions.


  • The Cat 3516E engine has proven its ability to deliver high power and reliability in the most demanding mining applications.
  • The mechanical drive powertrain and power shift transmission provide unmatched efficiency and control on steep grades, in poor underfoot conditions and on haul roads with high rolling resistance.
  • Application-specific capabilities are available for extreme ambient conditions and high-altitude applications.
  • The 789 lets you select the tire offering that best matches your application, with a larger tire for flat, long, high-speed applications. The frame is designed to maintain the same turning diameter while accommodating larger tires.
  • The 789 is available in two options to meet the emissions standards. The optional Tier 4 Final engine meets the strictest standards while the LRC engine is available in those countries that are less regulated.


  • MineStar Fleet is a fleet monitoring system that can be used to measure, manage and maximize the overall hauling operation.
  • Additional Detect offerings include Awareness, which can provide warnings and the in-cab Driver Safety System, which intervenes when it detects fatigue or distraction.
  • Machine health and condition monitoring solutions enable a proactive approach to maintenance.

Standard Equipment:

  • Electrical
    • 24V electrical system, low maintenance batteries (2) 93 amp-hour
    • Alarm, backup
    • Brushless alternator, 225 amp
    • Ground accessible power control box:
      - 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)
  • Operator Environment
    • 5V USB charging port
    • 12V auxiliary power connection
    • Cup holders
    • Ethernet Service Port
    • Delayed Engine Shutdown
    • Dome courtesy light and map lights
    • Entertainment radio ready: Speakers, Radio mounting provisions and 12V power supply
    • Fire suppression ready
    • Floor mat, multi-piece & replaceable
    • Digital 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
      - PRNDL shift lever and body hoist control
    • Heated mirrors, right and left
    • PRNDL shift lever and body hoist control
    • Interactive touchscreen vehicle information display: Day/night mode; Action alarm; Configurable gauge display
    • Premium operator air suspension seat
    • 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
  • Power Train
    • 37R57 standard rims
    • Cat 3516E 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;
      - Electric starter (no air) with 93-amp hour batteries (four), electric horn and automatic lubrication system
    • Hydraulic braking system:
      - Four channel independent wheel braking control ;
      - 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;
      - Lock-up torque converter;
      - Rear axle continuous lubrication/filtration
  • Other Equipment
    • Auxiliary "buddy" dumping quick connect
    • Auxiliary connection 'user defined shutdown'
    • Auxiliary steering quick connect (towing)
    • Electronic Operation and Maintenance Manual in touchscreen
    • 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
    • SOS℠ 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

Optional Equipment:

  • Electrical
    • Auxiliary rear work lights, (one) LH side
    • Digital Payload Display
    • LED Lighting system:
      - Additional lighting package
      -Body rear stop/tail lights & directional signal
      -Seat & park brake
    • Workshop horn
  • Truck Bodies
    • MSD II body
    • Dual slope body
    • Body specific side wall and tail extensions
    • Customizable body liner packages
    • Body heat exhaust
    • Rock ejectors
    • High Performance (HP) body
    • X body
  • Fluids
    • Antifreeze/coolant protects to –50° C (–58° F)
  • Operator Environment
    • Cruise control
    • Operator speed coaching
    • Deluxe Cab:
      - Advanced cabin filtration system
      - Catwalk and handrails for rear cab access
      - Premium Plus, heated, cooled and ventilated operator seat
      - Companion door power window
      - Premium air suspension companion seat
      - Storage tray
    • Entertainment radio ready: Radio Antenna (AM/FM/XM/DAB)
  • Power Train
    • 37R57 Quick change rims
    • 40R57 Standard rims; Quick change rims
    • Hydraulic braking system: Anti-lock Braking System (ABS) and Dynamic Stability Control (DSC)
    • Transmission:
      - Engine pre-lubrication system;
      - Rear axle cooler
    • Cat 3516E Engine: Turbine air starter with 93-amp hour batteries (two), air tank, air horn and automatic lubrication system
  • Other Equipment
    • 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)

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