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Komatsu HD680

Series: Komatsu Rock Truck

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The Komatsu HD680 is a model in the Komatsu Rock Truck series. The engine delivers 785.7 hp (577.9 kW), with a displacement of 28,021.9 cm³. The wheelbase measures 4,751.8 mm. Ground clearance is 566.9 mm. Top speed is 65 km/h. The engine fitted is the HD680. Tyre size: 24,00-35-42PR. The Komatsu Rock Truck series covers 35 models. Rated output within it ranges from 233.2 to 3,548.6 hp; the HD680 sits in the lower part of that range with 785.7 hp. Its immediate neighbours are the HD605-7 below it with 749.2 hp and the HD780 above it with 811.1 hp. 1159 Komatsu models across 39 series are on record. The model is listed under Mining equipment. 11 verified figures from 1 source are on file.

Technical data

Engine

Engine model	HD680correct
Power	785.7 hp (577.9 kW)correct
Displacement	28,021.9 cm³correct

Dimensions and weights

Length	9,790.2correct
Width	4,675.6correct
Wheelbase	4,751.8correct
Ground clearance	566.9correct

Drivetrain and chassis

Gearbox type	Torque converter and TORQFLOWcorrect
Tyre size	24.00-35-42PRcorrect
Top speed	65 km/hcorrect

Frequently asked questions

How much power does the Komatsu HD680 have?

The Komatsu HD680 delivers 786 hp.

What engine does the Komatsu HD680 have?

28,022 cm³ displacement.

How fast does the Komatsu HD680 go?

Top speed is 65 km/h.

What are the dimensions of the Komatsu HD680?

9,790 mm × 4,676 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 11 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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Komatsu HD680

Technical data

Engine

Dimensions and weights

Drivetrain and chassis

Frequently asked questions

What to check before buying

Other models in this series

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730E-8

830E

830E-1AC

830E-AC

860E-1K

930E-4

930E-4SE

960E-1

960E-2

960E-2K

980E-4

Dump truck in 3D section