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Komatsu WB150 Backhoe loaders tech specs

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1999-2006
4.75 m Backhoe digging depth
348.03 Nm Max torque
70.1 kw Net power
8,949 kg Operating weight
7.32 m Overall Length
2.38 m Overall Width

A backhoe loader with an 8,949 kg operating weight, the Komatsu WB150 combines 70.1 kilowatt net power with a 4.75 m backhoe digging depth and strong torque for excavation, trenching, loading, and site preparation work. With its 348.03 Nm torque output, 7.32 m overall length, and 2.38 m overall width, it is suited for contractors who need a capable mid-size machine for construction, utilities, and general earthmoving jobs.

Operating weight 8,949 kg

Net power 70.1 kilowatt

Maximum torque 348.03 Nm

Backhoe digging depth 4.75 m

Overall length 7.32 m

Overall width 2.38 m

Available as WB150-2N and WB150AWS-2N variants

Makana rating

Owner rating

| 3

Market average

AED 290,000

Starting from

AED 190,000

Komatsu WB150 technical specifications

Highlight differences

Komatsu WB150-2N

Komatsu WB150AWS-2N

Engine
Alternator supplied amperage 80 Amh
Alternator supplied amperage 80 Amh
Aspiration Turbocharged
Aspiration Turbocharged
Bore 10.67 cm
Bore 10.67 cm
Engine make Komatsu
Engine make Komatsu
Gross power 74.57 kw
Gross power 74.57 kw
Net power 70.1 kw
Net power 70.1 kw
Number of cylinders 4
Number of cylinders 4
Power measured @ 2,200 rpm
Power measured @ 2,200 rpm
Stroke 12.7 cm
Stroke 12.7 cm
Torque measured @ 1,400 rpm
Torque measured @ 1,400 rpm
Years 1999-2006
Years 1999-2006
Market Average AED 290,000
Market Average AED 290,000
Price AED 190,000
Price AED 190,000
General
Backhoe digging depth 4.75 m
Backhoe digging depth 4.57 m
Backhoe dump height 2.87 m
Backhoe dump height 2.87 m
Bucket capacity 0.99 cu m
Bucket capacity 0.99 cu m
Bucket digging force 4,241.09 kg
Bucket digging force 4,241.09 kg
Bucket width 235 cm
Bucket width 235 cm
Displacement 4,401.58 cu cm
Displacement 4,401.58 cu cm
Engine model S4D106-2SFA
Engine model S4D106-2SFA
Loader dump height 2.74 m
Loader dump height 2.74 m
Loader dump reach 2.87 m
Loader dump reach 2.87 m
Max speed forward 37.82 kph
Max speed forward 40.07 kph
Max torque 348.03 Nm
Max torque 348.03 Nm
Operating voltage 12 V
Operating voltage 12 V
Operating weight 8,949 kg
Operating weight 8,949 kg
Turning radius 4.33 m
Turning radius 4.33 m
Wheelbase 2.19 m
Wheelbase 2.19 m
Transmission type -
Transmission type Powershift
Loader
Breakout force 6,270.92 kg
Breakout force 6,270.92 kg
Loader digging depth 9.14 cm
Loader digging depth 10.16 cm
Service refill capacities
Cooling fluid cap 14 liter
Cooling fluid cap 14 liter
Front axle fluid capacity 8.71 liter
Front axle fluid capacity 8.71 liter
Hydraulic fluid cap 92.35 liter
Hydraulic fluid cap 92.35 liter
Rear axle fluid capacity 17.79 liter
Rear axle fluid capacity 17.79 liter
Operating specifications
Dump angle 45 º
Dump angle 45 º
Extended backhoe digging depth 5.61 m
Extended backhoe digging depth 5.61 m
Extended backhoe dump reach 3.81 m
Extended backhoe dump reach 3.81 m
Refill capacities
Engine oil cap 7.95 liter
Engine oil cap 7.95 liter
Dimensions
Front tread range 189.23 cm
Front tread range 195.07 cm
Ground clearance 0.34 m
Ground clearance 0.46 m
Height - top of cab 2.77 m
Height - top of cab 2.9 m
Rear tread range 180.09 cm
Rear tread range 195.07 cm
Overall Length 7.32 m
Overall Length 7.28 m
Overall Width 2.38 m
Overall Width 2.47 m
Transmission
Max speed reverse 37.82 kph
Max speed reverse -
Number of forward gears 4
Number of forward gears 4
Number of reverse gears 4
Number of reverse gears 3
Hydraulic system
Pump flow cap 165.03 lpm
Pump flow cap 165.03 lpm
Pump type Closed center, load sensing
Pump type Closed center, load sensing
Relief valve pressure 220.63 bar
Relief valve pressure 220.63 bar
Download datasheets

Komatsu WB150 expert review

Reviewed by Mohammed E. on May 5, 2026

Overview

The Komatsu WB150 (1999–2006) is a mid-size backhoe loader designed for excavation, trenching, loading, and general construction support. It delivers 70.1 kilowatt net power, 348.03 Nm torque, and a 4.75 m digging depth, giving it practical strength for contractors who need more capability than a compact backhoe.

Expert rating: 4 stars

Pros Strong 4.75 m digging depth and useful 8,949 kg operating weight for demanding site work.
Cons Less compact and more costly to run than smaller backhoe loader models.

Performance & Efficiency

The 70.1 kilowatt engine produces 348.03 Nm of torque, giving the WB150 reliable digging and loading performance for construction and utility work. Its 4.75 m backhoe digging depth helps with trenching and deeper excavation, while the 8,949 kg operating weight adds stability during heavier work cycles.

In Comparison

Komatsu WB142: Smaller option for lighter backhoe loader work.
Komatsu WB146: Comparable Komatsu backhoe with similar site support appeal.
Komatsu WB150: Better suited for buyers who need more depth, size, and digging force.

Final Verdict

Rated 4 stars, the Komatsu WB150 is a capable mid-size backhoe loader within the AED 190,000–290,000 range, offering strong digging depth and practical construction-site performance.

Show less

Komatsu WB150 owner rating

Komatsu WB150 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 4.75 m digging depth is useful for trenching and deeper utility work.
Cons
Its size makes it less convenient on very tight jobsites.
performance

4.0

comfort

5.0

fuel efficiency

4.0

safety

5.0

features

4.0

Valuation

Last 12 month
1999

Komatsu WB150 similar models

Highlight differences
Komatsu WB150-2N
Komatsu WB142-5
Komatsu WB146-5
Engine
Alternator supplied amperage 80 Amh
Alternator supplied amperage 95 Amh
Alternator supplied amperage 95 Amh
Aspiration Turbocharged
Aspiration Naturally aspirated
Aspiration Turbocharged
Bore 10.67 cm
Bore -
Bore -
Engine make Komatsu
Engine make -
Engine make -
Gross power 74.57 kw
Gross power 60.03 kw
Gross power 69.05 kw
Net power 70.1 kw
Net power 57.05 kw
Net power 66.07 kw
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 @ 1,300 rpm
Torque measured @ 1,500 rpm
Years 1999-2006
Years 2007-2014
Years 2006-2013
Market Average AED 290,000
Market Average AED 260,000
Market Average AED 270,000
Price AED 190,000
Price AED 170,000
Price AED 180,000
General
Backhoe digging depth 4.75 m
Backhoe digging depth 4.33 m
Backhoe digging depth 4.45 m
Backhoe dump height 2.87 m
Backhoe dump height 3.63 m
Backhoe dump height 3.69 m
Bucket capacity 0.99 cu m
Bucket capacity 0.84 cu m
Bucket capacity 0.99 cu m
Bucket digging force 4,241.09 kg
Bucket digging force -
Bucket digging force -
Bucket width 235 cm
Bucket width 218 cm
Bucket width 235 cm
Displacement 4,401.58 cu cm
Displacement 4,506.45 cu cm
Displacement 4,506.45 cu cm
Engine model S4D106-2SFA
Engine model 4D102LE-2
Engine model S4D102LE-2
Loader dump height 2.74 m
Loader dump height 2.62 m
Loader dump height 2.65 m
Loader dump reach 2.87 m
Loader dump reach 0.91 m
Loader dump reach 0.76 m
Max speed forward 37.82 kph
Max speed forward 37.01 kph
Max speed forward 37.82 kph
Max torque 348.03 Nm
Max torque 299.63 Nm
Max torque 406.74 Nm
Operating voltage 12 V
Operating voltage 12 V
Operating voltage 12 V
Operating weight 8,949 kg
Operating weight 6,585 kg
Operating weight 7,300 kg
Turning radius 4.33 m
Turning radius 3.63 m
Turning radius 3.41 m
Wheelbase 2.19 m
Wheelbase 2.19 m
Wheelbase 2.19 m
Transmission type -
Transmission type synchronized gearbox, powershift shuttle
Transmission type synchronized gearbox, powershift shuttle
Loader
Breakout force 6,270.92 kg
Breakout force 5,148.73 kg
Breakout force 5,998.31 kg
Loader digging depth 9.14 cm
Loader digging depth 10.16 cm
Loader digging depth 13.97 cm
Service refill capacities
Cooling fluid cap 14 liter
Cooling fluid cap 14 liter
Cooling fluid cap 14 liter
Front axle fluid capacity 8.71 liter
Front axle fluid capacity 7.19 liter
Front axle fluid capacity 7.19 liter
Hydraulic fluid cap 92.35 liter
Hydraulic fluid cap 97.27 liter
Hydraulic fluid cap 97.27 liter
Rear axle fluid capacity 17.79 liter
Rear axle fluid capacity 14.76 liter
Rear axle fluid capacity 14.76 liter
Fuel cap -
Fuel cap 120.36 liter
Fuel cap 150.26 liter
Transmission fluid cap -
Transmission fluid cap 18.17 liter
Transmission fluid cap 20.44 liter
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 5.55 m
Extended backhoe dump reach 3.81 m
Extended backhoe dump reach -
Extended backhoe dump reach -
Extended backhoe dump height -
Extended backhoe dump height -
Extended backhoe dump height 4.39 m
Extended backhoe reach from swivel -
Extended backhoe reach from swivel -
Extended backhoe reach from swivel 6.77 m
Refill capacities
Engine oil cap 7.95 liter
Engine oil cap 9.08 liter
Engine oil cap 9.08 liter
Dimensions
Front tread range 189.23 cm
Front tread range -
Front tread range -
Ground clearance 0.34 m
Ground clearance 0.4 m
Ground clearance 0.46 m
Height - top of cab 2.77 m
Height - top of cab 2.83 m
Height - top of cab 2.96 m
Rear tread range 180.09 cm
Rear tread range -
Rear tread range -
Overall Length 7.32 m
Overall Length 7.07 m
Overall Length 7.44 m
Overall Width 2.38 m
Overall Width 2.19 m
Overall Width 2.38 m
Transmission
Max speed reverse 37.82 kph
Max speed reverse 37.01 kph
Max speed reverse 37.82 kph
Number of forward gears 4
Number of forward gears 4
Number of forward gears 4
Number of reverse gears 4
Number of reverse gears 4
Number of reverse gears 4
Hydraulic system
Pump flow cap 165.03 lpm
Pump flow cap 140.05 lpm
Pump flow cap 165.03 lpm
Pump type Closed center, load sensing
Pump type Tandem fixed displacement pumps
Pump type Variable flow, axial piston
Relief valve pressure 220.63 bar
Relief valve pressure 206.98 bar
Relief valve pressure 244.97 bar
Backhoe
Backhoe reach from swivel -
Backhoe reach from swivel 5.61 m
Backhoe reach from swivel 5.76 m
Tires
Front tires size (2WD) -
Front tires size (2WD) -
Front tires size (2WD) 14 x 17.5 10ply R4
Rear tires size -
Rear tires size -
Rear tires size 19.5 x 24 10ply R4

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build datetime: 7/25/2026, 7:41:39 PM