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Komatsu WB91 Backhoe loaders tech specs

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Interior [2]
Exterior [4]
Attachments [2]
1999-2006
130.2 liter Fuel cap
310.07 Nm Max torque
61.52 kw Net power
8,580 kg Operating weight
5.91 m Overall Length
2.35 m Overall Width
Show features

Makana rating

Market average

AED 220,000

Starting from

AED 140,000

Komatsu WB91 Technical specifications

Engine

Alternator supplied amperage

60 Amh

Aspiration

Naturally aspirated

Displacement

4413.05 cu cm

Gross power

67.71 kw

Max torque

310.07 Nm

Net power

61.52 kw

Number of cylinders

4

Power measured @

2,200 rpm

Torque measured @

1,500 rpm

Backhoe

Backhoe digging depth

4.51 m

Backhoe reach from swivel

5.58 m

Loader

Breakout force

6080.59 kg

Loader digging depth

11.18 cm

Loader dump height

2.77 m

Loader dump reach

0.76 m

General

Bucket capacity

1.07 cu m

Bucket width

232 cm

Engine model

4D106-1FA

Max speed forward

40.07 kph

Operating voltage

12 V

Operating weight

8,580 kg

Transmission type

full powershift, Electronic Gear Management

Attachments

Bucket digging force

3570.05 kg

Service refill capacities

Cooling fluid cap

18.17 liter

Front axle fluid capacity

8.33 liter

Fuel cap

130.2 liter

Hydraulic fluid cap

92.35 liter

Rear axle fluid capacity

18.55 liter

Transmission fluid cap

16.28 liter

Refill capacities

Engine oil cap

8.71 liter

Operating specifications

Extended backhoe digging depth

5.67 m

Extended backhoe dump height

3.51 m

Extended backhoe dump reach

6.55 m

Extended backhoe reach from swivel

6.55 m

Tires

Front tires size (2WD)

12.5/80 R18- 10 PR

Rear tires size

16.9 x 28 - 10 PR

Dimensions

Ground clearance

0.46 m

Height - top of cab

2.77 m

Overall Length

5.91 m

Overall Width

2.35 m

Turning radius

5.46 m

Wheelbase

2.19 m

Transmission

Max speed reverse

40.07 kph

Number of forward gears

4

Number of reverse gears

4

Hydraulic system

Pump flow cap

165.03 lpm

Pump type

Variable flow, axial piston

Relief valve pressure

185 bar

View more
Download datasheets
OEM product brochure

Komatsu WB91 similar models

Highlight differences
Komatsu WB91R-2
WB91R-2
Komatsu WB156-5
WB156-5
Komatsu WB70A-1
WB70A-1
Engine
Alternator supplied amperage 60 Amh
Alternator supplied amperage 95 Amh
Alternator supplied amperage 60 Amh
Aspiration Naturally aspirated
Aspiration Turbocharged
Aspiration -
Displacement 4,413.05 cu cm
Displacement 4,506.45 cu cm
Displacement 3,318.39 cu cm
Gross power 67.71 kw
Gross power 73.83 kw
Gross power -
Max torque 310.07 Nm
Max torque 413.52 Nm
Max torque 251.09 Nm
Net power 61.52 kw
Net power 70.84 kw
Net power 52.8 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 @ 2,500 rpm
Torque measured @ 1,500 rpm
Torque measured @ 1,500 rpm
Torque measured @ 1,200 rpm
Years 1999-2006
Years 2006-2013
Years 1996-2004
Market Average AED 220,000
Market Average AED 320,000
Market Average AED 190,000
Price AED 140,000
Price AED 210,000
Price AED 120,000
Backhoe
Backhoe digging depth 4.51 m
Backhoe digging depth 4.75 m
Backhoe digging depth 3.69 m
Backhoe reach from swivel 5.58 m
Backhoe reach from swivel 6.04 m
Backhoe reach from swivel 4.69 m
Backhoe dump height -
Backhoe dump height 3.78 m
Backhoe dump height -
Loader
Breakout force 6,080.59 kg
Breakout force 5,998.31 kg
Breakout force 4,397.04 kg
Loader digging depth 11.18 cm
Loader digging depth 13.97 cm
Loader digging depth 11.18 cm
Loader dump height 2.77 m
Loader dump height 2.65 m
Loader dump height 2.5 m
Loader dump reach 0.76 m
Loader dump reach 0.76 m
Loader dump reach 0.88 m
General
Bucket capacity 1.07 cu m
Bucket capacity 0.99 cu m
Bucket capacity 0.76 cu m
Bucket width 232 cm
Bucket width 235 cm
Bucket width 185 cm
Engine model 4D106-1FA
Engine model S4D102LE-2
Engine model 4D98E-1FA
Max speed forward 40.07 kph
Max speed forward 37.82 kph
Max speed forward 39.11 kph
Operating voltage 12 V
Operating voltage 12 V
Operating voltage 12 V
Operating weight 8,580 kg
Operating weight 7,498 kg
Operating weight 6,400 kg
Transmission type full powershift, Electronic Gear Management
Transmission type synchronized gearbox, powershift shuttle
Transmission type Hydrostatic
Attachments
Bucket digging force 3,570.05 kg
Bucket digging force -
Bucket digging force 4,200.04 kg
Service refill capacities
Cooling fluid cap 18.17 liter
Cooling fluid cap 14 liter
Cooling fluid cap 15.14 liter
Front axle fluid capacity 8.33 liter
Front axle fluid capacity 7.19 liter
Front axle fluid capacity 4.16 liter
Fuel cap 130.2 liter
Fuel cap 150.26 liter
Fuel cap 70.02 liter
Hydraulic fluid cap 92.35 liter
Hydraulic fluid cap 97.27 liter
Hydraulic fluid cap 65.1 liter
Rear axle fluid capacity 18.55 liter
Rear axle fluid capacity 14.76 liter
Rear axle fluid capacity 5.3 liter
Transmission fluid cap 16.28 liter
Transmission fluid cap 20.44 liter
Transmission fluid cap -
Refill capacities
Engine oil cap 8.71 liter
Engine oil cap 9.08 liter
Engine oil cap 10.22 liter
Operating specifications
Extended backhoe digging depth 5.67 m
Extended backhoe digging depth 5.97 m
Extended backhoe digging depth 4.42 m
Extended backhoe dump height 3.51 m
Extended backhoe dump height 4.45 m
Extended backhoe dump height 3.63 m
Extended backhoe dump reach 6.55 m
Extended backhoe dump reach -
Extended backhoe dump reach 1.55 m
Extended backhoe reach from swivel 6.55 m
Extended backhoe reach from swivel 7.19 m
Extended backhoe reach from swivel 5.33 m
Tires
Front tires size (2WD) 12.5/80 R18- 10 PR
Front tires size (2WD) -
Front tires size (2WD) 12.5 x 20
Rear tires size 16.9 x 28 - 10 PR
Rear tires size -
Rear tires size 12.5 x 20
Dimensions
Ground clearance 0.46 m
Ground clearance 0.46 m
Ground clearance 0.46 m
Height - top of cab 2.77 m
Height - top of cab 2.96 m
Height - top of cab 2.68 m
Overall Length 5.91 m
Overall Length 7.53 m
Overall Length -
Overall Width 2.35 m
Overall Width 2.38 m
Overall Width 1.86 m
Turning radius 5.46 m
Turning radius 3.41 m
Turning radius -
Wheelbase 2.19 m
Wheelbase 2.19 m
Wheelbase 2.16 m
Transmission
Max speed reverse 40.07 kph
Max speed reverse 37.82 kph
Max speed reverse 39.11 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 165.03 lpm
Pump flow cap 116.2 lpm
Pump type Variable flow, axial piston
Pump type Variable flow, axial piston
Pump type Tandem gear
Relief valve pressure 185 bar
Relief valve pressure 244.97 bar
Relief valve pressure 200 bar

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build datetime: 3/9/2026, 7:55:59 AM