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789D

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Overview

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

  • Engine Model 3516C - HD 3516C - HD
  • Gross Power - SAE J1995 2100.0 HP 1566.0 kW
  • Bore 6.7 in 170.0 mm
  • Stroke 8.3 in 210.0 mm
  • Displacement 4766.0 in³ 78.1 l
  • Net Power 1969.0 HP 1468.0 kW
  • Gross Power 2100.0 HP 1566.0 kW
  • Rated Net Power - ISO 9249 1969.0 HP 1468.0 kW

Weights - Approximate

  • Gross Machine Operating Weight (GMW) 715000.0 lb 324319.0 kg
  • 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)
  • Empty Operating Chassis Weight (EOCW) 218542.0 lb 99129.0 kg

Operating Specifications

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

Final Drives

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

Transmission

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

Suspension

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

Body Hoists

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

Brakes

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

Weight Distributions - Approximate

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

Service Refill Capacities

  • Brake Hoist System 241.0 gal (US) 909.0 l
  • Cooling System 192.0 gal (US) 725.0 l
  • Crankcase 77.0 gal (US) 291.0 l
  • Differential - Final Drives 154.0 gal (US) 583.0 l
  • Fuel Tank - Optional 1000.0 gal (US) 3785.0 l
  • Fuel Tank - Standard 550.0 gal (US) 2082.0 l
  • Steering System 50.0 gal (US) 189.0 l
  • Transmission Tank 20.0 gal (US) 76.0 l

Tires

  • Optional Tires 40.00-R57 40.00-R57
  • Standard Tires 37.00-R57 37.00-R57

ROPS

  • ROPS Standards Standards Standards

Sound

  • Sound Standards Standards Standards

Steering

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

Optional Engine

  • Bore 6.7 in 170.0 mm
  • Displacement 4211.0 in³ 69.0 l
  • Engine Model 3516B EUI 3516B EUI
  • Gross Power 1900.0 HP 1417.0 kW
  • Rated Net Power - ISO 9249 1791.0 HP 1335.0 kW
  • Stroke 7.5 in 190.0 mm
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