Cat Mining Trucks 789D - Dump Truck - iMINCO Mining

Cat Mining Trucks 789 Dump Truck

Caterpillar 789 Haul Truck Overview

The CAT 789D is a lot faster than it’s competitors in certain applications. For a lot of mining companies, the Caterpillar brand is preferred over other makes. The Caterpillar 789 dump truck is  typically used in open pit mining. The 789 has a capacity of 177 tonnes, and its engine can produce 1770 horsepower.

There are a lot of Cat 789 dump trucks on various mine sites in Australia; working hard in open-cut coal mines as well as hauling raw iron ore dirt across the open, dusty mine sites of Western Australia.

CAT 789D specs

  • Engine Model – 3516C – HD
  • Gross Power – 2100.0 HP


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



Engine Model 3516B EUI
Gross Power 1900.0 HP
Rated Net Power – ISO 9249 1791.0 HP
Bore 6.7 in
Stroke 7.5 in
Displacement 4211.0 in³


Cooling and Onboard Management Systems

  • The new modular higher density cooling system with larger fans is hydraulically driven for more efficient cooling with lower fuel consumption and noise levels
  • Optional oil renewal system extends engine oil change intervals from 500 hours to 4,000 hours or more to increase machine availability and reduces costs.
  • Computerized system electronically protects the engine during cold starts, high altitude operation, air filter plugging, and high exhaust temperature.
  • Five configurations are performance matched to meet specific applications and conditions.

Truck Body Systems

  • Caterpillar designed and built the CAT 789D for rugged performance and reliability in the toughest mining environments.


  • Less time spent on maintenance means more time on the haul roads in some of the world’s biggest mines.