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Komatsu D51PX-22 Crawler

Series: Other models

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With the D51PX-22, Komatsu offers a model from the Komatsu Crawler Tractor series. The engine delivers 134.8 hp (96.9 kW), has 6 cylinders, with a displacement of 6,685.9 cm³. Rated speed is 2,200 rpm. The unladen weight is 13,100.2 kg. Ground clearance is 390.1 mm. The tank holds 269.9 litres. The gearbox has 3 forward gears. There are also 3 reverse gears. The pump delivers 99.2 l/min. Working pressure is 274.6 bar. The cooling system holds 35.2 litres. The oil fill is 20.1 litres. The electrical system runs on 24 V. The engine fitted is the SAA6D107E-1. The Komatsu Crawler Tractor series covers 265 models. Rated output within it ranges from 35.5 to 4,126.5 hp; the D51PX-22 sits at the bottom of that range with 134.8 hp. Its immediate neighbours are the D53P-18E below it with 131.8 hp and the D60A-6 above it with 141.9 hp. 1159 Komatsu models across 39 series are on record. The model is listed under Mining equipment. 19 verified figures from 1 source are on file.

Technical data

Engine

Engine modelSAA6D107E-1correct
Power134.8 hp (96.9 kW)correct
Rated speed2,200 rpmcorrect
Cylinders6correct
Displacement6,685.9 cm³correct
Aspirationturbocharged, air-to-air aftercooledcorrect
Coolant capacity35.2 lcorrect
Engine oil capacity20.1 lcorrect

Dimensions and weights

Ground clearance390.1correct
Unladen weight13,100.2 kgcorrect

Drivetrain and chassis

Gearbox typeDual-path hydrostatic transmission transmissioncorrect
Forward gears3correct
Reverse gears3correct
System voltage24 Vcorrect

Working data

Pump flow99.2 l/mincorrect
Hydraulic pressure274.6correct
Fuel tank capacity269.9 lcorrect

Other data

Height3,002.3correct

Where this model stands

Power-to-weight ratio: 7.4 kW/t (97 kW / 13.1 t)

Stronger than 38% 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 D51PX-22 have?

The Komatsu D51PX-22 delivers 135 hp.

How much does the Komatsu D51PX-22 weigh?

The unladen weight is 13,100 kg.

What engine does the Komatsu D51PX-22 have?

6 cylinders, 6,686 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 19 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]

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