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Komatsu W40

Series: Komatsu Wheel Loader

Source: https://www.komatsu.eu/de/radlader/radlader
The W40 from Komatsu is part of the Komatsu Wheel Loader series. The engine delivers 73 hp (53.7 kW), with a displacement of 4,326.2 cm³. The unladen weight is 6,430 kg. The wheelbase measures 2,441.4 mm. Ground clearance is 402.3 mm. The tank holds 117.3 litres. The gearbox has 3 forward gears. There are also 3 reverse gears. The cooling system holds 32.2 litres. The engine fitted is the 4D105. Tyre size: 16,9-24-10PR (L2). The Komatsu Wheel Loader series covers 104 models. Rated output within it ranges from 29.4 to 1,738.8 hp; the W40 sits at the bottom of that range with 73 hp. Its immediate neighbours are the WA85-3 below it with 65.9 hp and the WA95-3 above it with 76 hp. 1159 Komatsu models across 39 series are on record. The model is listed under Wheel loaders. 14 verified figures from 1 source are on file.

Technical data

Engine

Engine model4D105correct
Power73 hp (53.7 kW)correct
Displacement4,326.2 cm³correct
Coolant capacity32.2 lcorrect

Dimensions and weights

Wheelbase2,441.4correct
Ground clearance402.3correct
Unladen weight6,430 kgcorrect

Drivetrain and chassis

Gearbox typeTorqflow countershaft soft shiftcorrect
Forward gears3correct
Reverse gears3correct
Tyre size16.9-24-10PR (L2)correct

Working data

Fuel tank capacity117.3 lcorrect

Other data

Height2,877.3correct

Where this model stands

Power-to-weight ratio: 8.4 kW/t (54 kW / 6.4 t)

Stronger than 22% 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 W40 have?

The Komatsu W40 delivers 73 hp.

How much does the Komatsu W40 weigh?

The unladen weight is 6,430 kg.

What engine does the Komatsu W40 have?

4,326 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

W120-3

W170-2

W180-1

W20-1

W260-1

W30

W60

W70-3

W90-3

WA 400-5

WA100M-5

WA100M-6

Sources: [1]

Wheel loader in 3D section

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

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