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Liebherr LR634

Series: Liebherr Crawler Loader

Source: https://www.truck1.eu/construction-machinery/crawler-loaders

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The Liebherr Crawler Loader series from Liebherr includes the LR634. The engine delivers 135 kW, has 4 cylinders, with a displacement of 6,997.3 cm³. Rated speed is 1,800 rpm. The unladen weight is 20,794 kg. Ground clearance is 460.2 mm. Top speed is 10 km/h. The tank holds 360.4 litres. The pump delivers 209.3 l/min. The hydraulic tank holds 86.3 litres. Working pressure is 259.9 bar. The cooling system holds 36.3 litres. The oil fill is 30.3 litres. The electrical system runs on 24 V. The engine fitted is the D934 L A6. The Liebherr Crawler Loader series covers 7 models. Rated output within it ranges from 72.3 to 135 kW; the LR634 sits at the top of that range with 135 kW. Its immediate neighbours are the LR632B below it with 134.2 kW. 480 Liebherr models across 20 series are on record. The model is listed under Wheel loaders. 17 verified figures from 1 source are on file.

Technical data

Engine

Engine modelD934 L A6correct
Power135 kWcorrect
Rated speed1,800 rpmcorrect
Cylinders4correct
Displacement6,997.3 cm³correct
AspirationTurbocharged w/ Aftercoolercorrect
Coolant capacity36.3 lcorrect
Engine oil capacity30.3 lcorrect

Dimensions and weights

Ground clearance460.2correct
Unladen weight20,794 kgcorrect

Drivetrain and chassis

Top speed10 km/hcorrect
System voltage24 Vcorrect

Working data

Pump flow209.3 l/mincorrect
Hydraulic oil capacity86.3 lcorrect
Hydraulic pressure259.9correct
Fuel tank capacity360.4 lcorrect

Other data

Height3,310.1correct

Where this model stands

Power-to-weight ratio: 6.5 kW/t (135 kW / 20.8 t)

Stronger than 68% 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 Liebherr LR634 have?

The Liebherr LR634 delivers 135 kW.

How much does the Liebherr LR634 weigh?

The unladen weight is 20,794 kg.

What engine does the Liebherr LR634 have?

4 cylinders, 6,997 cm³ displacement.

How fast does the Liebherr LR634 go?

Top speed is 10 km/h.

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 17 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.

Used equipment offers
1 current listings for Liebherr LR634 on Hutnia.com.
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Other models in this series

LR614

LR622B

LR624

LR626 LITRONIC

LR632B

LR636 LITRONIC

Sources: [1]

Wheel loader in 3D section

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

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