Komatsu H455S

Series: Komatsu Hydraulic Excavator

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With the H455S, Komatsu offers a model from the Komatsu Hydraulic Excavator series. The engine delivers 2,270.7 hp, has 12 cylinders, with a displacement of 75,000.3 cm³. Rated speed is 1,800 rpm. The unladen weight is 490,000.1 kg. Ground clearance is 1,002.8 mm. The pump delivers 4,380.1 l/min. The hydraulic tank holds 3,800.2 litres. Working pressure is 309.9 bar. The engine fitted is the KTTA38C x2. The Komatsu Hydraulic Excavator series covers 179 models. Rated output within it ranges from 72.1 to 3,782.5 hp; the H455S sits in the middle of that range with 2,270.7 hp. Its immediate neighbours are the H285S below it with 1,604.4 hp and the H655S above it with 3,782.5 hp. 1159 Komatsu models across 39 series are on record. The model is listed under Excavators & compaction. 10 verified figures from 1 source are on file.

Technical data

Engine

Engine modelKTTA38C x2correct
Power2,270.7 hpcorrect
Rated speed1,800 rpmcorrect
Cylinders12correct
Displacement75,000.3 cm³correct

Dimensions and weights

Ground clearance1,002.8correct
Unladen weight490,000.1 kgcorrect

Working data

Pump flow4,380.1 l/mincorrect
Hydraulic oil capacity3,800.2 lcorrect
Hydraulic pressure309.9 barcorrect

Frequently asked questions

How much power does the Komatsu H455S have?

The Komatsu H455S delivers 2,271 hp.

What engine does the Komatsu H455S have?

12 cylinders, 75,000 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.
  • 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 10 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]

Excavator in 3D section

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