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Komatsu D31P-17 Crawler

Series: Other models

The photo shows the D575A-2 from the same series. Source: https://www.komatsu.eu/en/product-archive/crawler-dozers/d57

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The D31P-17 from Komatsu is part of the Komatsu Crawler Tractor series. The engine delivers 68.9 hp (50.7 kW), has 4 cylinders, with a displacement of 4,331.1 cm³. Rated speed is 2,350 rpm. The unladen weight is 6,700 kg. Ground clearance is 381 mm. The tank holds 115.1 litres. The gearbox has 3 forward gears. There are also 3 reverse gears. The cooling system holds 22.3 litres. The engine fitted is the 4D105-5. The Komatsu Crawler Tractor series covers 265 models. Rated output within it ranges from 35.5 to 4,126.5 hp; the D31P-17 sits at the bottom of that range with 68.9 hp. Its immediate neighbours are the D31A-17 below it with 66.9 hp and the D31A-20E above it with 72 hp. 1159 Komatsu models across 39 series are on record. The model is listed under Mining equipment. 14 verified figures from 1 source are on file.

Technical data

Engine

Engine model4D105-5correct
Power68.9 hp (50.7 kW)correct
Rated speed2,350 rpmcorrect
Cylinders4correct
Displacement4,331.1 cm³correct
Coolant capacity22.3 lcorrect

Dimensions and weights

Ground clearance381correct
Unladen weight6,700 kgcorrect

Drivetrain and chassis

Gearbox typeHScorrect
Forward gears3correct
Reverse gears3correct

Working data

Fuel tank capacity115.1 lcorrect

Other data

Height2,706.6correct

Where this model stands

Power-to-weight ratio: 7.6 kW/t (51 kW / 6.7 t)

Stronger than 12% of the mining equipment in the register — out of 945 models with a stated power figure.

Calculated from the documented figures above — not a rating.

Frequently asked questions

How much power does the Komatsu D31P-17 have?

The Komatsu D31P-17 delivers 68.9 hp.

How much does the Komatsu D31P-17 weigh?

The unladen weight is 6,700 kg.

What engine does the Komatsu D31P-17 have?

4 cylinders, 4,331 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.
  • 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 14 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

02ESV36

02ESV56

02ESV60

12CM12

12CM15

12CM27

12HM series

14CM09CC

14CM10

14CM15

14CM15B

14CM15C

Sources: [1]

Dump truck in 3D section

Turn the model, look inside and click an assembly — each one is explained.

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