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Komatsu WB140 Backhoe loaders tech specs

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Interior [2]
Exterior [4]
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1999-2006
4.45 m Backhoe digging depth
348.03 Nm Max torque
64.88 kw Net power
8,949 kg Operating weight
7.32 m Overall Length
2.38 m Overall Width

At 8.95 tons operating weight, the Komatsu WB140 is a heavy backhoe loader built for excavation, trenching, loading, and general construction support work. It combines 64.88 kilowatt net power, a turbocharged Komatsu S4D106-2XFH engine, 4.45 m standard backhoe digging depth, 5.61 m extended digging depth, and a closed center load-sensing hydraulic system, making it suitable for contractors who need reliable digging and loading performance in one machine.

Net power 64.88 kilowatt

Gross power 69.35 kilowatt

Operating weight 8,949 kg

Backhoe digging depth 4.45 m

Extended backhoe digging depth 5.61 m

Hydraulic pump flow 165.03 lpm

Closed center load-sensing hydraulic system

Makana rating

Owner rating

| 3

Market average

AED 250,000

Starting from

AED 160,000

Komatsu WB140 Technical specifications

Engine

Alternator supplied amperage

80 Amh

Aspiration

Turbocharged

Bore

10.67 cm

Engine make

Komatsu

Gross power

69.35 kw

Net power

64.88 kw

Number of cylinders

4

Power measured @

2,200 rpm

Stroke

12.7 cm

Torque measured @

1,400 rpm

General

Backhoe digging depth

4.45 m

Backhoe dump height

2.87 m

Bucket capacity

0.99 cu m

Bucket digging force

4002.96 kg

Bucket width

235 cm

Displacement

4401.58 cu cm

Engine model

S4D106-2XFH

Loader dump height

2.74 m

Loader dump reach

2.87 m

Max speed forward

37.82 kph

Max torque

348.03 Nm

Operating voltage

12 V

Operating weight

8,949 kg

Wheelbase

2.19 m

Loader

Breakout force

5801.45 kg

Loader digging depth

9.14 cm

Service refill capacities

Cooling fluid cap

14 liter

Front axle fluid capacity

8.71 liter

Hydraulic fluid cap

92.35 liter

Rear axle fluid capacity

17.79 liter

Operating specifications

Dump angle

45 º

Extended backhoe digging depth

5.61 m

Extended backhoe dump reach

3.81 m

Refill capacities

Engine oil cap

7.95 liter

Dimensions

Front tread range

189.23 cm

Ground clearance

0.34 m

Height - top of cab

2.77 m

Rear tread range

180.09 cm

Overall Length

7.32 m

Overall Width

2.38 m

Turning radius

4.33 m

Transmission

Max speed reverse

37.82 kph

Number of forward gears

4

Number of reverse gears

4

Hydraulic system

Pump flow cap

165.03 lpm

Pump type

Closed center, load sensing

Relief valve pressure

206.84 bar

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Download datasheets

Komatsu WB140 expert review

Reviewed by Hussain E. on May 4, 2026

Overview

The Komatsu WB140 (1999–2006) is a heavy backhoe loader designed for excavation, trenching, loading, backfilling, and general construction support. It delivers 64.88 kilowatt net power, an 8,949 kg operating weight, a 4.45 m standard digging depth, and a 5.61 m extended digging depth, giving it practical capability for mixed jobsite work.

Expert rating: 4 stars

Pros Strong hydraulic flow, good extended digging depth, and proven Komatsu engine platform.
Cons Heavy footprint makes confined-site work more demanding.

Performance & Efficiency

The turbocharged Komatsu S4D106-2XFH engine produces 64.88 kilowatt net power and 348.03 Nm of torque, giving the WB140 steady performance for digging, loading, and backfilling. Its 165.03 lpm closed center load-sensing hydraulic system, 206.84 bar relief valve pressure, 5801.45 kg loader breakout force, and 0.99 cu m bucket capacity make it useful for trenching, truck loading, and mixed construction work.

In Comparison

Venieri VF7: Lighter and more compact, with good digging reach for medium to heavy site work.
Venieri VF9: Similar heavy-machine profile with strong hydraulic flow and bucket capacity.
Komatsu WB140: Best fit for buyers who want Komatsu engine reliability, strong hydraulics, and balanced backhoe loader performance.

Final Verdict

Rated 4 stars, the Komatsu WB140 offers dependable digging performance, strong hydraulic response, and practical loader capability within the AED 160,000–250,000 range.

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Komatsu WB140 owner rating

Komatsu WB140 Backhoe loaders [1999-2006]

1999-2006

Overall rating

Based on 3 ratings

4.3
performance

4.0

comfort

4.3

fuel efficiency

4.3

safety

4.3

features

4.0

5 stars

33 %

4 stars

67 %

3 stars

0 %

2 stars

0 %

1 stars

0 %

Pros
The Komatsu engine feels dependable for daily digging and loading work.
Cons
The 8.95-ton weight makes it less convenient on soft or tight sites.
performance

4.0

comfort

5.0

fuel efficiency

4.0

safety

5.0

features

4.0

Valuation

Last 12 month
1999

Komatsu WB140 similar models

Highlight differences
Komatsu WB140-2N
Venieri VF7.23B
Venieri VF9.23
Engine
Alternator supplied amperage 80 Amh
Alternator supplied amperage -
Alternator supplied amperage -
Aspiration Turbocharged
Aspiration Turbocharged
Aspiration -
Bore 10.67 cm
Bore -
Bore -
Engine make Komatsu
Engine make -
Engine make -
Gross power 69.35 kw
Gross power 75.02 kw
Gross power 84.04 kw
Net power 64.88 kw
Net power -
Net power -
Number of cylinders 4
Number of cylinders 4
Number of cylinders 4
Power measured @ 2,200 rpm
Power measured @ 2,200 rpm
Power measured @ 2,200 rpm
Stroke 12.7 cm
Stroke -
Stroke -
Torque measured @ 1,400 rpm
Torque measured @ -
Torque measured @ -
Years 1999-2006
Years 1996-2023
Years 1999-2000
Market Average AED 250,000
Market Average AED 210,000
Market Average AED 230,000
Price AED 160,000
Price AED 135,000
Price AED 150,000
General
Backhoe digging depth 4.45 m
Backhoe digging depth 5.12 m
Backhoe digging depth 5.43 m
Backhoe dump height 2.87 m
Backhoe dump height 4.91 m
Backhoe dump height 5.21 m
Bucket capacity 0.99 cu m
Bucket capacity 0.92 cu m
Bucket capacity 1.22 cu m
Bucket digging force 4,002.96 kg
Bucket digging force -
Bucket digging force -
Bucket width 235 cm
Bucket width 210 cm
Bucket width 225 cm
Displacement 4,401.58 cu cm
Displacement 4,000.09 cu cm
Displacement 4,000.09 cu cm
Engine model S4D106-2XFH
Engine model 1004-40T
Engine model 1004-40T
Loader dump height 2.74 m
Loader dump height 3.35 m
Loader dump height 3.41 m
Loader dump reach 2.87 m
Loader dump reach -
Loader dump reach -
Max speed forward 37.82 kph
Max speed forward 30.09 kph
Max speed forward 33.15 kph
Max torque 348.03 Nm
Max torque -
Max torque -
Operating voltage 12 V
Operating voltage -
Operating voltage -
Operating weight 8,949 kg
Operating weight 7,200 kg
Operating weight 8,500 kg
Wheelbase 2.19 m
Wheelbase -
Wheelbase -
Transmission type -
Transmission type Hydrostatic
Transmission type Hydrostatic
Loader
Breakout force 5,801.45 kg
Breakout force -
Breakout force -
Loader digging depth 9.14 cm
Loader digging depth -
Loader digging depth -
Service refill capacities
Cooling fluid cap 14 liter
Cooling fluid cap -
Cooling fluid cap -
Front axle fluid capacity 8.71 liter
Front axle fluid capacity -
Front axle fluid capacity -
Hydraulic fluid cap 92.35 liter
Hydraulic fluid cap -
Hydraulic fluid cap -
Rear axle fluid capacity 17.79 liter
Rear axle fluid capacity -
Rear axle fluid capacity -
Operating specifications
Dump angle 45 º
Dump angle -
Dump angle -
Extended backhoe digging depth 5.61 m
Extended backhoe digging depth -
Extended backhoe digging depth -
Extended backhoe dump reach 3.81 m
Extended backhoe dump reach -
Extended backhoe dump reach -
Refill capacities
Engine oil cap 7.95 liter
Engine oil cap -
Engine oil cap -
Dimensions
Front tread range 189.23 cm
Front tread range -
Front tread range -
Ground clearance 0.34 m
Ground clearance -
Ground clearance -
Height - top of cab 2.77 m
Height - top of cab -
Height - top of cab -
Rear tread range 180.09 cm
Rear tread range -
Rear tread range -
Overall Length 7.32 m
Overall Length 5.55 m
Overall Length 5.82 m
Overall Width 2.38 m
Overall Width 2.1 m
Overall Width 2.26 m
Turning radius 4.33 m
Turning radius 4.27 m
Turning radius 4.51 m
Transmission
Max speed reverse 37.82 kph
Max speed reverse 30.09 kph
Max speed reverse -
Number of forward gears 4
Number of forward gears 2
Number of forward gears 3
Number of reverse gears 4
Number of reverse gears 2
Number of reverse gears 2
Hydraulic system
Pump flow cap 165.03 lpm
Pump flow cap 111.28 lpm
Pump flow cap 145.34 lpm
Pump type Closed center, load sensing
Pump type Piston
Pump type Piston
Relief valve pressure 206.84 bar
Relief valve pressure 230 bar
Relief valve pressure 230 bar
Backhoe
Backhoe reach from swivel -
Backhoe reach from swivel 5.55 m
Backhoe reach from swivel 5.58 m

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build datetime: 6/9/2026, 1:26:42 PM