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Caterpillar 777D

Series: Caterpillar Rock Truck

Source: https://commons.wikimedia.org/wiki/File:Caterpillar_777D-II.

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With the 777D, Caterpillar offers a model from the Caterpillar Rock Truck series. The engine delivers 1,013.9 hp (699.5 kW), has 8 cylinders, with a displacement of 34,494.8 cm³. Torque is 4,713.1 Nm. The wheelbase measures 4,572 mm. Ground clearance is 749.8 mm. Top speed is 60.5 km/h. The tank holds 1,137.1 litres. Maximum torque is reached at 1,300 rpm. The hydraulic tank holds 138.2 litres. The cooling system holds 325.2 litres. The oil fill is 124.2 litres. The engine fitted is the Cat 3508B EUI. The Caterpillar Rock Truck series covers 29 models. Rated output within it ranges from 480.6 to 3,599.2 hp; the 777D sits in the lower part of that range with 1,013.9 hp. Its immediate neighbours are the 777B below it with 932.8 hp and the 777F above it with 1,030.1 hp. 1091 Caterpillar models across 47 series are on record. The model is listed under Mining equipment. 16 verified figures from 1 source are on file.

Technical data

Engine

Engine model	Cat 3508B EUIcorrect
Power	1,013.9 hp (699.5 kW)correct
Torque	4,713.1correct
Speed at max. torque	1,300 rpmcorrect
Cylinders	8correct
Displacement	34,494.8 cm³correct
Coolant capacity	325.2 lcorrect
Engine oil capacity	124.2 lcorrect

Dimensions and weights

Length	9,784.1correct
Height	5,000 mmcorrect
Wheelbase	4,572correct
Ground clearance	749.8correct

Drivetrain and chassis

Gearbox type	automatic gearbox power shiftcorrect
Top speed	60.5 km/hcorrect

Working data

Hydraulic oil capacity	138.2 lcorrect
Fuel tank capacity	1,137.1 lcorrect

Frequently asked questions

How much power does the Caterpillar 777D have?

The Caterpillar 777D delivers 1,014 hp.

What engine does the Caterpillar 777D have?

8 cylinders, 34,495 cm³ displacement.

How fast does the Caterpillar 777D go?

Top speed is 60.5 km/h.

What are the dimensions of the Caterpillar 777D?

9,784 mm × 5,000 mm.

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 17 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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Caterpillar 777D

Technical data

Engine

Dimensions and weights

Drivetrain and chassis

Working data

Frequently asked questions

What to check before buying

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