Overview
The Caterpillar 789 Rock Truck is a articulated dump truck listed in the Heavy Equipment Hub equipment database with structured specifications for comparison, research, and machine selection. Key specification points include engine power of 1,705 hp, travel speed of 33.6 mph and fuel capacity of 851.2 gal. This model can be reviewed for equipment comparison, jobsite planning, fleet research, and specification-based machine selection. Use the full specifications table to compare the Caterpillar 789 Rock Truck against similar articulated dump truck models by power, weight, capacity, dimensions, speed, and other technical values.
Key Specifications
Net Power
1,705
hp
Gross Power
1,800
hp
Rated Payload
390,000
lb
Overall Length
39.97
ft
Full Specifications
23 specs
Dimensions
Dump Height
39.08 ft / 11.91 m
Load Capacity - Heaped
137 lb / 62 kg
Load Capacity - Struck
95 lb / 43 kg
Overall Height
20.18 ft / 6.15 m
Overall Length
39.97 ft / 12.18 m
Overall Width
24.09 ft / 7.34 m
Rated Payload
390,000 lb / 176,901 kg
Wheelbase
18.71 ft / 5.70 m
Engine
Displacement
4,217 cu in / 69.1 L
Empty Weight
268,792 lb / 121,922 kg
Engine Make
2236
Engine Model
3516
Fuel Capacity
851.20 gal / 3,222.1 L
Gross Power
1,800 hp / 1,342.3 kW
Load Capacity - Heaped
137.40 yd³ / 105.05 m³
Loaded Weight
699,880 lb / 317,460 kg
Max Speed
33.60 mph / 54.1 km/h
Net Power
1,705 hp / 1,271.4 kW
Number Of Gears - Forward
6
Weight Distribution Front - Empty
47 lb / 21 kg
Weight Distribution Front - Loaded
33 lb / 15 kg
Weight Distribution Rear - Empty
53 lb / 24 kg
Weight Distribution Rear - Loaded
67 lb / 30 kg
Related Machines
Frequently Asked Questions
How powerful is the Caterpillar 789 Rock Truck engine? +
The Caterpillar 789 Rock Truck produces 1,800 hp (1,342.3 kW) of engine power. This output is typical for its weight class and designed to handle demanding Articulated Dump Truck work cycles efficiently.
How does the Caterpillar 789 Rock Truck compare to similar Articulated Dump Truck models? +
You can compare the Caterpillar 789 Rock Truck side by side with any other model using the Heavy Equipment Hub compare tool. Key comparison points include engine power, operating weight, digging depth, hydraulic flow, and overall dimensions.