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Liebherr LR634 Crawler loaders tech specs

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2006-2015
2.52 cu m Bucket capacity
6,997.29 cu cm Displacement
D934 L A6 Engine model
3.08 m Loader dump height
134.97 kw Net power
20,794 kg Operating weight

A 20,794 kg crawler loader built for heavy material handling, stockpile work, and rough loading conditions, the Liebherr LR634 combines 134.97 kilowatt net power with a 2.52 cu m bucket and strong tracked stability for demanding site work. With its turbocharged, aftercooled D934 L A6 engine, 14,268 kg tipping load, 209.31 lpm hydraulic flow, and 3.08 m loader dump height, it is suited for quarry support, bulk loading, land clearing, and contractor jobs where traction, bucket control, and steady loading performance matter more than travel speed.

Operating weight 20,794 kg

Net power 134.97 kilowatt

Bucket capacity 2.52 cu m

Tipping load 14,268 kg

Loader dump height 3.08 m

Hydraulic pump flow 209.31 lpm

Fuel tank capacity 360.33 liters

Turbocharged, aftercooled engine

Makana rating

Owner rating

 | 3

Market average

AED 326,000

Starting from

AED 143,000

Liebherr LR634 Technical specifications

Engine

Alternator supplied amperage

80 Amh

Aspiration

Turbocharged, aftercooled

Net power

134.97 kw

Number of cylinders

4

Power measured @

1,800 rpm

General

Bucket capacity

2.52 cu m

Displacement

6997.29 cu cm

Engine model

D934 L A6

Loader dump height

3.08 m

Loader dump reach

1.22 m

Max speed forward

9.98 kph

Operating voltage

24 V

Operating weight

20,794 kg

Tipping load

14,268 kg

Service refill capacities

Cooling fluid cap

36.34 liter

Fuel cap

360.33 liter

Hydraulic fluid cap

86.3 liter

Operating specifications

Raise time

6 s

Lower time

3 s

Refill capacities

Engine oil cap

30.28 liter

Final drives fluid cap

20.06 liter

Dimensions

Ground clearance

0.49 m

Height - top of cab

3.32 m

Length with bucket

6.98 m

Width over tracks

2.32 m

Undercarriage

Ground pressure

0.71 bar

Number of shoes per side

38

Number of track rollers per side

6

Track gauge

1.8 m

Track length

2.59 m

Track width

50.8 cm

Hydraulic system

Pump flow cap

209.31 lpm

Relief valve pressure

259.93 bar

Download datasheets
OEM product brochure

Liebherr LR634 expert review

Reviewed by Rizwan R. on April 26, 2026

Overview

The Liebherr LR634 (2006–2015) is a practical crawler loader designed for material handling, site cleanup, and rough loading tasks. It delivers 134.97 kilowatt net power, a 2.52 cu m bucket, and a 14,268 kg tipping load, providing strong performance across contractor and earthmoving work.

Expert rating: 4 stars

Pros Strong tipping load, big bucket, and stable loading performance on rough ground.
Cons Slower travel speed than wheeled loaders and value depends heavily on condition.

Performance & Efficiency

The turbocharged, aftercooled D934 L A6 engine, 209.31 lpm hydraulic pump flow, and tracked undercarriage give the LR634 reliable performance for loading, cleanup, and routine contractor work, while the 2.52 cu m bucket and 14,268 kg tipping load support heavier loading duties.

In Comparison

Cat 963: Practical crawler loader with strong contractor appeal and dependable site-loading performance.
Cat 973: Heavier competitor with a more substantial feel on tougher loading work.
Liebherr LR634: Known for strong hydraulic response, larger bucket capacity, and dependable daily site versatility.

Final Verdict

Rated 4 stars, the Liebherr LR634 offers strong crawler-loader capability within the AED 143,000–326,000 range.

Show less

Liebherr LR634 owner rating

Liebherr LR634 Crawler loaders [2006-2015]

2006-2015

Overall rating

Based on 3 ratings

4.3
performance

4.3

comfort

4.3

fuel efficiency

4.3

safety

4.3

features

4.3

5 stars

33 %

4 stars

67 %

3 stars

0 %

2 stars

0 %

1 stars

0 %

Pros
Bucket feels strong and productive on stockpiles and heavier loading jobs.
Cons
Tracked travel is still slow when the job needs more movement across site.
performance

4.0

comfort

5.0

fuel efficiency

4.0

safety

5.0

features

4.0

Valuation

Last 12 month
2006

Liebherr LR634 similar models

Highlight differences
Liebherr LR634
Cat 963D
Cat 973C
Engine
Alternator supplied amperage 80 Amh
Alternator supplied amperage 50 Amh
Alternator supplied amperage -
Aspiration Turbocharged, aftercooled
Aspiration -
Aspiration -
Net power 134.97 kw
Net power 111.86 kw
Net power 156.6 kw
Number of cylinders 4
Number of cylinders 4
Number of cylinders -
Power measured @ 1,800 rpm
Power measured @ 2,200 rpm
Power measured @ -
Years 2006-2015
Years 2007-2025
Years 1986-2025
Market Average AED 326,000
Market Average AED 920,000
Market Average AED 397,000
Price AED 143,000
Price AED 512,000
Price AED 78,000
General
Bucket capacity 2.52 cu m
Bucket capacity 2.06 cu m
Bucket capacity -
Displacement 6,997.29 cu cm
Displacement 7,000.57 cu cm
Displacement 10,500.85 cu cm
Engine model D934 L A6
Engine model 3304
Engine model 3306
Loader dump height 3.08 m
Loader dump height 3.14 m
Loader dump height 3.35 m
Loader dump reach 1.22 m
Loader dump reach 1.19 m
Loader dump reach 1.34 m
Max speed forward 9.98 kph
Max speed forward 10.14 kph
Max speed forward 10.46 kph
Operating voltage 24 V
Operating voltage 24 V
Operating voltage -
Operating weight 20,794 kg
Operating weight 18,366 kg
Operating weight 24,902 kg
Tipping load 14,268 kg
Tipping load 12,322 kg
Tipping load 16,788 kg
Service refill capacities
Cooling fluid cap 36.34 liter
Cooling fluid cap 45.04 liter
Cooling fluid cap -
Fuel cap 360.33 liter
Fuel cap 261.17 liter
Fuel cap 356.17 liter
Hydraulic fluid cap 86.3 liter
Hydraulic fluid cap 60.18 liter
Hydraulic fluid cap 60.18 liter
Operating specifications
Raise time 6 s
Raise time 6 s
Raise time 7 s
Lower time 3 s
Lower time 2 s
Lower time 3 s
Refill capacities
Engine oil cap 30.28 liter
Engine oil cap 19.3 liter
Engine oil cap -
Final drives fluid cap 20.06 liter
Final drives fluid cap 14 liter
Final drives fluid cap -
Dimensions
Ground clearance 0.49 m
Ground clearance 0.46 m
Ground clearance 0.46 m
Height - top of cab 3.32 m
Height - top of cab 3.32 m
Height - top of cab -
Length with bucket 6.98 m
Length with bucket -
Length with bucket 7.13 m
Width over tracks 2.32 m
Width over tracks 2.32 m
Width over tracks 2.59 m
Undercarriage
Ground pressure 0.71 bar
Ground pressure 0.81 bar
Ground pressure 0.83 bar
Number of shoes per side 38
Number of shoes per side 37
Number of shoes per side -
Number of track rollers per side 6
Number of track rollers per side 6
Number of track rollers per side 7
Track gauge 1.8 m
Track gauge 1.85 m
Track gauge 2.08 m
Track length 2.59 m
Track length 2.47 m
Track length 2.93 m
Track width 50.8 cm
Track width 45.21 cm
Track width 50.04 cm
Ground contact area -
Ground contact area 56,135.65 cu cm
Ground contact area 74,169.65 cu cm
Hydraulic system
Pump flow cap 209.31 lpm
Pump flow cap 204.01 lpm
Pump flow cap -
Relief valve pressure 259.93 bar
Relief valve pressure 189.6 bar
Relief valve pressure -
Pump type -
Pump type Vane-type pump
Pump type -
Loader
Breakout force -
Breakout force 17,339.5 kg
Breakout force 21,763.84 kg

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build datetime: 8/17/2026, 2:01:49 PM