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Komatsu GD661A-1

Series: Komatsu Motor Grader

Source: https://www.truck1.eu/construction-machinery/graders/komatsu

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The GD661A-1 from Komatsu is part of the Komatsu Motor Grader series. The engine delivers 182.2 hp, has 6 cylinders, with a displacement of 6,490.9 cm³. Rated speed is 2,500 rpm. The machine is 8,382 mm long. The wheelbase measures 6,001.5 mm. Ground clearance is 365.8 mm. The tank holds 285 litres. The engine fitted is the S6D105. Tyre size: 13,00-24-10PR. The Komatsu Motor Grader series covers 36 models. Rated output within it ranges from 76 to 283.9 hp; the GD661A-1 sits in the middle of that range with 182.2 hp. Its immediate neighbours are the GD650AW-2C below it with 168.6 hp and the GD705R-2 above it with 182.5 hp. 1159 Komatsu models across 39 series are on record. The model is listed under Motor graders. 10 verified figures from 1 source are on file.

Technical data

Engine

Engine modelS6D105correct
Power182.2 hpcorrect
Rated speed2,500 rpmcorrect
Cylinders6correct
Displacement6,490.9 cm³correct

Dimensions and weights

Length8,382correct
Wheelbase6,001.5correct
Ground clearance365.8correct

Drivetrain and chassis

Tyre size13.00-24-10PRcorrect
Turning radius6,920 mmcorrect

Working data

Fuel tank capacity285 lcorrect

Frequently asked questions

How much power does the Komatsu GD661A-1 have?

The Komatsu GD661A-1 delivers 182 hp.

What engine does the Komatsu GD661A-1 have?

6 cylinders, 6,491 cm³ displacement.

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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Other models in this series

GD200A-1

GD300A-1

GD305A-3

GD31RC-3A

GD405A-1

GD500R-2

GD505A-2

GD505R-2

GD510R-1

GD511A-1

GD521A-1

GD530A-2C

Sources: [1]

Grader in 3D section

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