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Caterpillar 938K

Series: Caterpillar Wheel Loader

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The 938K from Caterpillar is part of the Caterpillar Wheel Loader series. The engine delivers 177.4 hp (126 kW), has 6 cylinders, with a displacement of 6,587.6 cm³. Torque is 911.1 Nm. The unladen weight is 15,922.9 kg. The tank holds 194.9 litres. The gearbox has 4 forward gears. There are also 4 reverse gears. Maximum torque is reached at 1,600 rpm. The pump delivers 189.3 l/min. The hydraulic tank holds 90.1 litres. The cooling system holds 32.2 litres. The engine fitted is the C7,1 ACERT. Tyre size: 20.5. The Caterpillar Wheel Loader series covers 78 models. Rated output within it ranges from 42.6 to 1,598.9 hp; the 938K sits at the bottom of that range with 177.4 hp. Its immediate neighbours are the 966R below it with 172.8 hp and the 938G Series II above it with 182.2 hp. 1091 Caterpillar models across 47 series are on record. The model is listed under Wheel loaders. 16 verified figures from 1 source are on file.

Technical data

Engine

Engine modelC7.1 ACERTcorrect
Power177.4 hp (126 kW)correct
Torque911.1correct
Speed at max. torque1,600 rpmcorrect
Cylinders6correct
Displacement6,587.6 cm³correct
Coolant capacity32.2 lcorrect

Dimensions and weights

Length7,650.5correct
Unladen weight15,922.9 kgcorrect

Drivetrain and chassis

Forward gears4correct
Reverse gears4correct
Tyre size20.5correct

Working data

Pump flow189.3 l/mincorrect
Hydraulic oil capacity90.1 lcorrect
Fuel tank capacity194.9 lcorrect

Where this model stands

Power-to-weight ratio: 7.9 kW/t (126 kW / 15.9 t)

Stronger than 64% 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 Caterpillar 938K have?

The Caterpillar 938K delivers 177 hp.

How much does the Caterpillar 938K weigh?

The unladen weight is 15,923 kg.

What engine does the Caterpillar 938K have?

6 cylinders, 6,588 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 16 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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