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Komatsu PC78US-6

Series: Komatsu Midi Excavator

Source: https://commons.wikimedia.org/wiki/File:Komatsu_PC78US_-_Arl

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With the PC78US-6, Komatsu offers a model from the Komatsu Midi Excavator series. The engine has 4 cylinders, with a displacement of 3,261 cm³. The unladen weight is 7,189.4 kg. The tank holds 124.9 litres. The hydraulic tank holds 110.2 litres. The oil fill is 7.6 litres. The engine fitted is the S4D95LE-3. The Komatsu Midi Excavator series covers 21 models. Unladen weight within it ranges from 4,670 to 16,680 kg; the PC78US-6 sits in the lower part of that range with 7,189.4 kg. Its immediate neighbours are the PC60L-1 below it with 6,700 kg and the PC75-1 above it with 7,400 kg. 1159 Komatsu models across 39 series are on record. The model is listed under Excavators & compaction. 9 verified figures from 1 source are on file.

Technical data

Engine

Engine modelS4D95LE-3correct
Cylinders4correct
Displacement3,261 cm³correct
Aspirationturbochargedcorrect
Engine oil capacity7.6 lcorrect

Dimensions and weights

Unladen weight7,189.4 kgcorrect

Working data

Hydraulic oil capacity110.2 lcorrect
Fuel tank capacity124.9 lcorrect

Other data

Height2,718.8correct

Frequently asked questions

How much does the Komatsu PC78US-6 weigh?

The unladen weight is 7,189 kg.

What engine does the Komatsu PC78US-6 have?

4 cylinders, 3,261 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 9 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

PC130-8

PC160LC-8

PC40 MRx

PC40MR-2

PC45MR-3

PC45R-8

PC50MR-2

PC55MR-3

PC58UU-3

PC60-1

PC60-7

PC60L-1

Sources: [1]

Excavator in 3D section

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