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Komatsu D40A-3 Crawler

Series: Other models

Source: https://www.komatsu.com/en-za

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The Komatsu D40A-3 is a model in the Komatsu Crawler Tractor series. The engine delivers 94.3 hp (69.4 kW), has 6 cylinders, with a displacement of 6,490.9 cm³. Rated speed is 2,350 rpm. The unladen weight is 9,800 kg. Ground clearance is 362.7 mm. The tank holds 245.3 litres. The gearbox has 5 forward gears. There are also 4 reverse gears. The cooling system holds 33.3 litres. The engine fitted is the 6D105-1. The Komatsu Crawler Tractor series covers 265 models. Rated output within it ranges from 35.5 to 4,126.5 hp; the D40A-3 sits at the bottom of that range with 94.3 hp. Its immediate neighbours are the D37PX-23 below it with 92.3 hp and the D40A-5 above it with 96.3 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 model6D105-1correct
Power94.3 hp (69.4 kW)correct
Rated speed2,350 rpmcorrect
Cylinders6correct
Displacement6,490.9 cm³correct
Coolant capacity33.3 lcorrect

Dimensions and weights

Ground clearance362.7correct
Unladen weight9,800 kgcorrect

Drivetrain and chassis

Gearbox typeDDcorrect
Forward gears5correct
Reverse gears4correct

Working data

Fuel tank capacity245.3 lcorrect

Other data

Height2,795correct

Where this model stands

Power-to-weight ratio: 7.1 kW/t (69 kW / 9.8 t)

Stronger than 28% 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 D40A-3 have?

The Komatsu D40A-3 delivers 94.3 hp.

How much does the Komatsu D40A-3 weigh?

The unladen weight is 9,800 kg.

What engine does the Komatsu D40A-3 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.
  • 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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