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Komatsu D31S-17

Series: Komatsu Crawler Loader

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The Komatsu D31S-17 belongs to the Komatsu Crawler Loader series. The engine delivers 49.2 kW, with a displacement of 4,326.2 cm³. The unladen weight is 6,700 kg. Top speed is 6.6 km/h. The tank holds 115.1 litres. The cooling system holds 22.3 litres. The engine fitted is the 4D105-5. The Komatsu Crawler Loader series covers 33 models. Rated output within it ranges from 14.9 to 261 kW; the D31S-17 sits at the bottom of that range with 49.2 kW. Its immediate neighbours are the D31S-16 below it with 47 kW and the D31Q-20 above it with 52 kW. 1159 Komatsu models across 39 series are on record. The model is listed under Wheel loaders. 8 verified figures from 1 source are on file.

Technical data

Engine

Engine model4D105-5correct
Power49.2 kWcorrect
Displacement4,326.2 cm³correct
Coolant capacity22.3 lcorrect

Dimensions and weights

Unladen weight6,700 kgcorrect

Drivetrain and chassis

Top speed6.6 km/hcorrect

Working data

Fuel tank capacity115.1 lcorrect

Other data

Height2,657.9correct

Where this model stands

Power-to-weight ratio: 7.3 kW/t (49 kW / 6.7 t)

Stronger than 17% of the wheel loaders in the register — out of 1,253 models with a stated power figure.

Calculated from the documented figures above — not a rating.

Frequently asked questions

How much power does the Komatsu D31S-17 have?

The Komatsu D31S-17 delivers 49.2 kW.

How much does the Komatsu D31S-17 weigh?

The unladen weight is 6,700 kg.

What engine does the Komatsu D31S-17 have?

4,326 cm³ displacement.

How fast does the Komatsu D31S-17 go?

Top speed is 6.6 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.
  • Check the weights in the papers against the figures here — attachments change them.
  • 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 8 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]

Wheel loader in 3D section

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