Caterpillar 785
Series: Caterpillar Rock Truck
The Caterpillar Rock Truck series from Caterpillar includes the 785. The engine delivers 1,399.1 hp (962 kW), with a displacement of 51,801.1 cm³. The wheelbase measures 5,181.6 mm. Top speed is 56 km/h. The tank holds 1,893.1 litres. The engine fitted is the 3,512. Tyre size: 33,00-51 50PR (E-4). The Caterpillar Rock Truck series covers 29 models. Rated output within it ranges from 480.6 to 3,599.2 hp; the 785 sits in the lower part of that range with 1,399.1 hp. Its immediate neighbours are the 777F below it with 1,030.1 hp and the 170 above it with 1,470.1 hp. 1091 Caterpillar models across 47 series are on record. The model is listed under Mining equipment. 9 verified figures from 1 source are on file.
Technical data
Engine
| Engine model | 3,512correct |
|---|---|
| Power | 1,399.1 hp (962 kW)correct |
| Displacement | 51,801.1 cm³correct |
Dimensions and weights
| Length | 11,021.6correct |
|---|---|
| Wheelbase | 5,181.6correct |
Drivetrain and chassis
| Tyre size | 33.00-51 50PR (E-4)correct |
|---|---|
| Top speed | 56 km/hcorrect |
Working data
| Fuel tank capacity | 1,893.1 lcorrect |
|---|
Frequently asked questions
How much power does the Caterpillar 785 have?
The Caterpillar 785 delivers 1,399 hp.
What engine does the Caterpillar 785 have?
51,801 cm³ displacement.
How fast does the Caterpillar 785 go?
Top speed is 56 km/h.
What to check before buying
- Check the hour meter against the service records — a replaced instrument is the most common gap.
- Compare the data plate and chassis number with the papers.
- Load the hydraulics and watch for sag.
- Ask about parts availability for this build year — the running costs hang on it.
A general list for this type of machine — no substitute for an inspection or an appraiser.
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This page carries 9 individual figures for this model. They come from 1 recorded source; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.
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Other models in this series
Sources: [1]
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