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Caterpillar’s exclusive design ownership provides advantages by creating a total hauling unit that delivers the best integration of high production, availability, and payload in combination with low operating cost and long life. The Cat® 789D continues the tradition of Caterpillar’s proven 789 Truck with high productivity and lowest in class cost per ton.


Engine Model 3516C - HD 3516C - HD Less
Gross Power - SAE J1995 2100.0 hp 1566.0 kW Less
Bore 6.7 in 170.0 mm Less
Stroke 8.3 in 210.0 mm Less
Displacement 4766.0 in3 78.1 L Less
Net Power 1969.0 hp 1468.0 kW Less
Gross Power 2100.0 hp 1566.0 kW Less
Rated Net Power (ISO 9249) 1969.0 hp 1468.0 kW Less

Weights - Approximate

Gross Machine Operating Weight (GMW) 715000.0 lb 324319.0 kg Less
Body Weight Range 23 920 kg-45 547 kg (52,850 lb-100,414 lb) 23 920 kg-45 547 kg (52,850 lb-100,414 lb) Less
Empty Operating Chassis Weight (EOCW) 218542.0 lb 99129.0 kg Less

Operating Specifications

Nominal Payload Capacity 200.0 tons 181.0 tonnes Less
Standard Combi Body (SAE 2:1) 200.0 yd3 153.0 m3 Less
Standard Dual Slope Body (SAE 2:1) 141.0 yd3 108.0 m3 Less
Standard Gateless Coal Body (SAE 2:1) 250.0 yd3 191.0 m3 Less
Standard MSD Body (SAE 2:1) 170.0 yd3 130.0 m3 Less
Standard X Body (SAE 2:1) 161.0 yd3 123.0 m3 Less

Final Drives

Differential Ratio 2.35:1 2.35:1 Less
Planetary Ratio 10.83:1 10.83:1 Less
Total Reduction Ratio 25.46:1 25.46:1 Less


Forward 1 7.8 mph 12.6 km/h Less
Forward 2 10.6 mph 17.1 km/h Less
Forward 3 14.4 mph 23.1 km/h Less
Forward 4 19.4 mph 31.2 km/h Less
Forward 5 26.3 mph 42.3 km/h Less
Forward 6 35.5 mph 57.2 km/h Less
Reverse 7.3 mph 11.8 km/h Less


Effective Cylinder Stroke - Front 4.0 in 105.0 mm Less
Effective Cylinder Stroke - Rear 3.5 in 93.0 mm Less
Rear Axle Oscillation ±5.6° ±5.6° Less

Body Hoists

Pump Flow - High Idle 193.0 gal/min 731.0 L/min Less
Relief Valve Setting - Raise 2500.0 psi 17238.0 kPa Less
Body Raise Time - High Idle 18.9 Seconds 18.9 Seconds Less
High Idle Body Lower Time - Float 17.3 Seconds 17.3 Seconds Less
High Idle Body Lower Time - Power 15.6 Seconds 15.6 Seconds Less


Brake Surface - Rear 18024.0 in2 116283.0 cm2 Less
Standards SAE J1473 OCT90 ISO 3450:1996 SAE J1473 OCT90 ISO 3450:1996 Less
Brake Surface - Front 12662.0 in2 81693.0 cm2 Less

Weight Distributions - Approximate

Front Axle - Loaded 33.0 % 33.0 % Less
Rear Axle - Loaded 67.0 % 67.0 % Less
Front Axle - Empty 46.0 % 46.0 % Less
Rear Axle - Empty 54.0 % 54.0 % Less

Service Refill Capacities

Fuel Tank (standard) 550.0 gal 2082.0 L Less
Fuel Tank (optional) 1000.0 gal 3785.0 L Less
Cooling System 192.0 gal 725.0 L Less
Crankcase 77.0 gal 291.0 L Less
Brake/Hoist System 241.0 gal 909.0 L Less
Differential and Final Drives 154.0 gal 583.0 L Less
Steering System 50.0 gal 189.0 L Less
Transmission Tank 20.0 gal 76.0 L Less


Optional Tires 40.00-R57 40.00-R57 Less
Standard Tires 37.00-R57 37.00-R57 Less


ROPS Standards Standards Standards Less


Sound Standards Standards Standards Less


Steering Angle 36.07 Degrees 36.07 Degrees Less
Turning Diameter on Front Wheel 90.32 ft 27.53 m Less
Vehicle Clearance - Turn Circle 99.18 ft 30.23 m Less
Steering Standards SAE J1511 OCT90 ISO 5010:1992 SAE J1511 OCT90 ISO 5010:1992 Less

Optional Engine

Bore 6.7 in 170.0 mm Less
Displacement 4211.0 in3 69.0 L Less
Engine Model 3516B EUI 3516B EUI Less
Gross Power 1900.0 hp 1417.0 kW Less
Rated Net Power (ISO 9249) 1791.0 hp 1335.0 kW Less
Stroke 7.5 in 190.0 mm Less

Power Train - Engine

The Cat® 3500 series engines are built for power, reliability and efficiency for superior performance in the toughest applications.

Power Train - Transmission

Cat mechanical power train delivers more power to the ground for greater productivity and lower operating costs.

Engine/Power Train Integration

Electronically combines critical power train components to work more intelligently and to optimize overall truck performance.


Rugged Cat structures are the backbone of the 789D mining truck’s durability.

Operator’s Station

Ergonomically designed for operator comfort, superior control, and high productivity.

Cat® Brake System

Reliable braking with superior control gives the operator the confidence to focus on productivity.

Truck Body Systems

Cat designed and built for rugged performance and reliability in the toughest mining applications.

Monitoring System

Vital machine health and payload data keeps the 789D performing at peak production levels.


Cat mining machines and systems are designed with safety as their first priority.


A variety of features improve sustainability in areas of decreasing waste, extending component life and lowering emissions levels.


Less time spent on maintenance means more time on the haul roads.

Customer Support

Cat dealers have what it takes to keep mining haul trucks productive.

789D Standard Equipment

  • Diesel engine/turbocharged/aftercooled:
  • Braking system:
  • Transmission:

  • Alarm, backup
  • Alternator, 105 amp
  • Batteries, 12V (2), 93 amp-hour
  • Converter, 12V electrical
  • Electrical system, 24V, 15 amp
  • Lighting system:

  • Air conditioner
  • Auxiliary power connection/cigarette lighter
  • Diagnostic connection port
  • Dome courtesy light
  • Entertainment Radio Ready:
  • Gauges/indicators:
  • Electric hour meter
  • Electric engine control fault indicator
  • Engine idle shutdown
  • Mirrors, right and left
  • Speedometer
  • Tachometer
  • Transmission gear indicator
  • VIMS message center with universal gauge
  • VIMS keypad
  • Heater/defroster (11 070 kCal/43,930 BTU)
  • Horn
  • Hoist, body control (electric)
  • Integrated object detection system
  • ROPS cab, insulated/sound suppressed
  • Seatbelt, operator, 75 mm/3" wide
  • Seatbelt, trainer, two points
  • Stairway and walkway access, 600 mm (24 in)
  • Steering wheel, tilt, padded, telescopic
  • Window, operator, electric powered
  • Windshield wiper, intermittent control and washer

  • Extended Life Coolant to -35° C (-30° F)

  • Air line dryer
  • Auto lubrication system
  • Auxiliary “buddy” dumping quick connect
  • Auxiliary steering quick connect (towing)
  • Body mounting group
  • Center mounted rims (6) (29×57) (used for 37.00-R57 tires)
  • Driveline guard (fully enclosed)
  • Fast fill fuel system
  • Ground level VIMS data port
  • Ground level battery disconnect
  • Rock ejectors
  • Supplemental steering (automatic)
  • Tie off points
  • Tow hooks (front)
  • Tow pin (rear)
  • Traction Control System
  • Vital Information Management System

789D Optional Equipment

  • Dual slope body:
  • Dual slope body attachments:
  • X body:
  • X body attachments:
  • MSD II body:
  • MSD II body attachments:
  • Combination body:
  • Combination body attachments:
  • Gateless coal body:
  • Gateless coal body attachments:
  • Body lighting group - rear:

  • Lockout transmission, ground level
  • Auxiliary work lights (1) RH side, (1) LH side

  • Prelube, engine
  • Oil renewal system

  • Rear axle, cooler

  • Information management:
  • Cold weather:
  • Service center:
  • Miscellaneous:

  • Coolant, -50° C (-58° F)

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