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Komatsu D21P-6 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 Komatsu Crawler Tractor series from Komatsu includes the D21P-6. The engine delivers 4,126.5 hp, has 4 cylinders, with a displacement of 2,690.8 cm³. Torque is 3,321.8 Nm. The unladen weight is 4,070 kg. Ground clearance is 362.7 mm. The gearbox has 3 forward gears. There are also 2 reverse gears. The engine fitted is the 4D95S-W1. The Komatsu Crawler Tractor series covers 265 models. Rated output within it ranges from 35.5 to 4,126.5 hp; the D21P-6 sits at the top of that range with 4,126.5 hp. Its immediate neighbours are the D475A-1 below it with 2,719.3 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 model4D95S-W1correct
Power4,126.5 hpcorrect
Torque3,321.8correct
Cylinders4correct
Displacement2,690.8 cm³correct

Dimensions and weights

Ground clearance362.7correct
Unladen weight4,070 kgcorrect

Drivetrain and chassis

Gearbox typeDDcorrect
Forward gears3correct
Reverse gears2correct

Other data

Height2,502.4correct

Frequently asked questions

How much does the Komatsu D21P-6 weigh?

The unladen weight is 4,070 kg.

What engine does the Komatsu D21P-6 have?

4 cylinders, 2,691 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 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

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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