Machine models

Komatsu WB91R-2 to WB156PS-5 specifications

Entries in this reference
Listing-entry count
11

Short answer

Komatsu WB91R-2 to WB156PS-5: backhoe loaders.

Selected configuration figures
Configuration	Documented field and quantity
WB91R-2	Gross Power 90.8 hp Operating Weight 4wd 16,535 lb
WB93R-2	Gross Power 100 hp Operating Weight 4wd 16,535 lb
WB97S-2	Gross Power 113 hp Operating Weight 4wd 17,637 lb
WB140-2N	Gross Power 93 hp Pump Flow Capacity 43.6 gpm
WB142-5	Gross Power 80.5 hp Operating Weight 2wd 14,518 lb
WB146-5	Gross Power 92.6 hp Operating Weight 2wd 16,094 lb
WB146PS-5	Gross Power 92.6 hp Operating Weight 2wd 16,094 lb
WB150-2N	Gross Power 100 hp Pump Flow Capacity 43.6 gpm
WB150AWS-2N	Gross Power 100 hp Pump Flow Capacity 43.6 gpm
WB156-5	Gross Power 99 hp Operating Weight 2wd 16,530 lb
WB156PS-5	Gross Power 99 hp Pump Flow Capacity 43.6 gpm

WB91R-2 to WB156PS-5 specification matrix — Listing labels reported by the source
Publisher name	Source guide	Listing-entry count	Labels named by the source
Komatsu	WB91R-2 to WB156PS-5	11	WB91R-2, WB93R-2, WB97S-2, WB140-2N, WB142-5, WB146-5, and 5 more

Backhoe
Specification	WB91R-2	WB93R-2	WB97S-2	WB142-5	WB146-5	WB146PS-5	WB156-5	WB156PS-5
Load Height - Std	8.21 ft	12.14 ft	12.14 ft	11.82 ft	12.07 ft	12.07 ft	12.34 ft	12.3 ft
Reach From Swivel - Std	18.21 ft	18.21 ft	18.21 ft	18.31 ft	18.84 ft	18.84 ft	19.8 ft	19.83 ft

Specification	WB91R-2	WB93R-2	WB97S-2	WB140-2N	WB142-5	WB146-5	WB146PS-5	WB150-2N	WB150AWS-2N	WB156-5	WB156PS-5
Dig Depth - Std	14.77 ft	16.25 ft	14.77 ft	14.59 ft	14.17 ft	14.52 ft	14.52 ft	15.59 ft	14.92 ft	15.51 ft	15.33 ft

Specification	WB91R-2	WB93R-2	WB97S-2	WB140-2N	WB150-2N	WB150AWS-2N	WB156PS-5
Reach At Load Height - Std	18.21 ft	8.21 ft	8.21 ft	9.39 ft	9.39 ft	9.39 ft	10 ft
Bucket Dig Force - Std	7,871 lb	8,488 lb	8,488 lb	8,825 lb	9,350 lb	9,350 lb	15.5 lb
Reach At Load Height - Ext	21.49 ft	11.49 ft	11.49 ft	12.5 ft	12.5 ft	12.5 ft	13.91 ft

Specification	WB91R-2	WB93R-2	WB97S-2	WB146-5	WB146PS-5	WB156-5	WB156PS-5
Load Height - Ext	11.49 ft	15.85 ft	15.85 ft	14.34 ft	14.34 ft	14.56 ft	14.56 ft
Reach From Swivel - Ext	21.49 ft	21.49 ft	21.49 ft	22.17 ft	22.17 ft	23.51 ft	23.5 ft

Specification	WB91R-2	WB93R-2	WB97S-2	WB140-2N	WB146-5	WB146PS-5	WB150-2N	WB150AWS-2N	WB156-5	WB156PS-5
Dig Depth - Ext	18.54 ft	20.02 ft	18.54 ft	18.34 ft	18.16 ft	18.16 ft	18.34 ft	18.34 ft	19.59 ft	19.55 ft

Specification	WB142-5	WB146-5	WB146PS-5	WB156-5
Load At Max Lift - Std	2,976 lb	3,270 lb	3,270 lb	3,245 lb

Specification	WB146-5	WB146PS-5	WB156-5
Load At Max Lift - Ext	1,834 lb	1,834 lb	1,841 lb

Specification	WB156PS-5
Bucket Dig Force - Ext	19.58 lb

Dimensions and weight
Specification	WB91R-2	WB93R-2	WB140-2N	WB142-5	WB146-5	WB146PS-5	WB150-2N	WB150AWS-2N	WB156-5	WB156PS-5
Transport Length	19.35 ft	19.35 ft	23.99 ft	23.17 ft	24.39 ft	24.39 ft	23.99 ft	23.81 ft	24.62 ft	24.58 ft

Specification	WB91R-2	WB93R-2	WB97S-2	WB140-2N	WB142-5	WB146-5	WB146PS-5	WB150-2N	WB150AWS-2N	WB156-5	WB156PS-5
Transport Width	7.62 ft	7.62 ft	7.94 ft	7.73 ft	7.16 ft	7.73 ft	7.73 ft	7.73 ft	8.06 ft	7.73 ft	7.75 ft
Transport Height	12.01 ft	12.01 ft	12.01 ft	11.65 ft	12.01 ft	13.88 ft	13.88 ft	11.65 ft	11.82 ft	13.88 ft	13.92 ft
Wheelbase	7.14 ft	7.14 ft	7.14 ft	7.14 ft	7.14 ft	7.14 ft	7.14 ft	7.14 ft	7.14 ft	7.14 ft	7.17 ft
Ground Clearance	1.42 ft	1.42 ft	1.42 ft	1.05 ft	1.25 ft	1.42 ft	1.42 ft	1.05 ft	1.42 ft	1.42 ft	1.42 ft
Height To Top Of Suspended Cab	9.03 ft	9.03 ft	9.03 ft	9.03 ft	9.26 ft	9.63 ft	9.63 ft	9.03 ft	9.44 ft	9.63 ft	9.67 ft

Specification	WB140-2N	WB150-2N	WB150AWS-2N
Dump Angle	45	45	45
Front Tread Range	74.41 in	74.41 in	76.78 in
Rear Tread Range	70.87 in	70.87 in	76.78 in
Rollback @ Ground	45 degrees	45 degrees	45 degrees

Loader
Specification	WB91R-2	WB93R-2	WB97S-2	WB140-2N	WB142-5	WB146-5	WB146PS-5	WB150-2N	WB150AWS-2N	WB156-5	WB156PS-5
Clearance At Max Dump Height	9.03 ft	9.03 ft	9.03 ft	9 ft	8.58 ft	8.61 ft	8.61 ft	9 ft	9 ft	8.61 ft	14.58 ft
Reach At Max Dump Height	2.47 ft	2.47 ft	2.47 ft	9.39 ft	2.99 ft	2.47 ft	2.47 ft	9.39 ft	9.39 ft	2.47 ft	12.33 ft
Dig Depth	4.34 in	4.34 in	4.34 in	3.55 in	3.94 in	5.44 in	5.44 in	3.55 in	3.94 in	5.44 in	5.44 in
Bucket Breakout Force	13,405 lb	14,350 lb	14,350 lb	12,790 lb	11,351 lb	13,224 lb	13,224 lb	13,825 lb	13,825 lb	13,224 lb	13,505 lb
Bucket Width	91.34 in	91.34 in	95.28 in	92.72 in	85.83 in	92.76 in	92.76 in	92.72 in	92.72 in	92.76 in	7.75 in
Bucket Capacity	1.35 yd3	1.35 yd3	1.44 yd3	1.25 yd3	1.01 yd3	1.25 yd3	1.25 yd3	1.25 yd3	1.25 yd3	1.25 yd3	1.25 yd3
Lift Capacity At Full Height	9,304 lb	8,598 lb	8,653 lb	8,270 lb	6,327 lb	8,598 lb	8,598 lb	8,925 lb	8,925 lb	8,598 lb	8,598 lb

Engine
Specification	WB91R-2	WB93R-2	WB97S-2	WB140-2N	WB142-5	WB146-5	WB146PS-5	WB150-2N	WB150AWS-2N	WB156-5	WB156PS-5
Number Of Cylinders	4	4	4	4	4	4	4	4	4	4	4
Engine Model	4D106-1FA	S4D106-2SFA	S4D106-1FA	S4D106-2XFH	4D102LE-2	S4D102LE-2	S4D102LE-2	S4D106-2SFA	S4D106-2SFA	S4D102LE-2	S4D102LE-2
Gross Power	90.8 hp	100 hp	113 hp	93 hp	80.5 hp	92.6 hp	92.6 hp	100 hp	100 hp	99 hp	99 hp
Net Power	82.5 hp	97.8 hp	97.9 hp	87 hp	76.5 hp	88.6 hp	88.6 hp	94 hp	94 hp	95 hp	95 hp
Power Measured @	2,200 rpm	2,200 rpm	2,200 rpm	2,200 rpm	2,200 rpm	2,200 rpm	2,200 rpm	2,200 rpm	2,200 rpm	2,200 rpm	2,200 rpm
Torque Measured @	1,500 rpm	1,600 rpm	1,500 rpm	1,400 rpm	1,300 rpm	1,500 rpm	1,500 rpm	1,400 rpm	1,400 rpm	1,500 rpm	1,500 rpm
Net Max Torque	228.7 lb-ft	278.8 lb-ft	276.6 lb-ft	256.7 lb-ft	221 lb-ft	300 lb-ft	300 lb-ft	256.7 lb-ft	256.7 lb-ft	305 lb-ft	305 lb-ft
Aspiration	natural	natural	turbocharged	Turbocharged	Naturally	turbocharged	turbocharged	Turbocharged	Turbocharged	turbocharged	Turbocharged
Displacement	269.3 cu in	269.3 cu in	269.3 cu in	268.6 cu in	275 cu in	275 cu in	275 cu in	268.6 cu in	268.6 cu in	275 cu in	275 cu in

Specification	WB140-2N	WB150-2N	WB150AWS-2N
Engine Make	Komatsu	Komatsu	Komatsu
Bore	4.2 in	4.2 in	4.2 in
Stroke	5 in	5 in	5 in

Operational
Specification	WB91R-2	WB93R-2	WB97S-2	WB142-5	WB146-5	WB146PS-5	WB156-5	WB156PS-5
Fuel Capacity	34.4 gal	34.4 gal	34.4 gal	31.8 gal	39.7 gal	39.7 gal	39.7 gal	39.7 gal
Transmission Fluid Capacity	4.3 gal	4.3 gal	4.3 gal	4.8 gal	5.4 gal	7.4 gal	5.4 gal	5.4 gal

Specification	WB91R-2	WB93R-2	WB97S-2	WB142-5	WB146-5	WB146PS-5	WB156-5
Operating Weight 4wd	16,535 lb	16,535 lb	17,637 lb	14,518 lb	16,094 lb	16,094 lb	16,530 lb

Specification	WB91R-2	WB93R-2	WB97S-2	WB140-2N	WB150-2N	WB150AWS-2N
Max Weight	18,916 lb	18,916 lb	19,621 lb	19,731 lb	19,731 lb	19,731 lb

Specification	WB91R-2	WB93R-2	WB97S-2	WB140-2N	WB142-5	WB146-5	WB146PS-5	WB150-2N	WB150AWS-2N	WB156-5	WB156PS-5
Hydraulic System Fluid Capacity	24.4 gal	24.4 gal	24.4 gal	24.4 gal	25.7 gal	25.7 gal	25.7 gal	24.4 gal	24.4 gal	25.7 gal	25.7 gal
Oil System Fluid Capacity	2.3 gal	2.3 gal	2.3 gal	2.1 gal	2.4 gal	2.4 gal	2.4 gal	2.1 gal	2.1 gal	2.4 gal	2.4 gal
Cooling System Fluid Capacity	4.8 gal	4.8 gal	4.8 gal	3.7 gal	3.7 gal	3.7 gal	3.7 gal	3.7 gal	3.7 gal	3.7 gal	3.7 gal
Front Axle Fluid Capacity	2.2 gal	2.2 gal	2.2 gal	2.3 gal	1.9 gal	1.9 gal	1.9 gal	2.3 gal	2.3 gal	1.9 gal	2 gal
Rear Axle Fluid Capacity	4.9 gal	4.9 gal	4.9 gal	4.7 gal	3.9 gal	3.9 gal	3.9 gal	4.7 gal	4.7 gal	3.9 gal	3.9 gal
Turning Radius	17.9 ft	17.9 ft	15.5 ft	14.2 ft	11.9 ft	11.2 ft	11.2 ft	14.2 ft	14.2 ft	11.2 ft	13.1 ft
Operating Voltage	12 V	12 V	12 V	12 V	12 V	12 V	12 V	12 V	12 V	12 V	12 V
Alternator Supplied Amperage	60 amps	80 amps	80 amps	80 amps	95 amps	95 amps	95 amps	80 amps	80 amps	95 amps	95 amps

Specification	WB91R-2	WB93R-2	WB97S-2	WB146-5	WB146PS-5
Tire Size Front - 2wd / 4wd	12.5/80 R18- 10 PR	12.5/80 R18 - 10 PR	16.9 x 24 - 12 PR	14 x 17.5 10ply R4	14 x 17.5 10ply R4
Rear Tires Size 2wd/4wd	16.9 x 28 - 10 PR	16.9 x 28 - 10 PR	16.9 x 24 - 12 PR	19.5 x 24 10ply R4	19.5 x 24 10ply R4

Specification	WB142-5	WB146-5	WB146PS-5	WB156-5
Operating Weight 2wd	14,518 lb	16,094 lb	16,094 lb	16,530 lb

Transmission and speeds
Specification	WB91R-2	WB93R-2	WB97S-2	WB142-5	WB146-5	WB146PS-5	WB150AWS-2N	WB156-5	WB156PS-5
Transmission Type	full power shift, Electronic Gear Management	full power shift 4WD	full powershift, 4WD	synchronized gearbox, powershift shuttle	synchronized gearbox, powershift shuttle	full power shift, gears	Power shift	synchronized gearbox, power shuttle	twist grip or electronic gear EGMTM

Specification	WB91R-2	WB93R-2	WB97S-2	WB140-2N	WB142-5	WB146-5	WB146PS-5	WB150-2N	WB150AWS-2N	WB156-5	WB156PS-5
Number Of Forward Gears	4	4	4	4	4	4	4	4	4	4	4
Number Of Reverse Gears	4	4	4	4	4	4	3	4	3	4	3
Max Speed - Forward	24.9 mph	24.9 mph	24.9 mph	23.5 mph	23 mph	23.5 mph	24.9 mph	23.5 mph	24.9 mph	23.5 mph	24.9 mph

Specification	WB91R-2	WB93R-2	WB97S-2	WB140-2N	WB142-5	WB146-5	WB146PS-5	WB150-2N	WB156-5	WB156PS-5
Max Speed Reverse	24.9 mph	24.9 mph	14.3 mph	23.5 mph	23 mph	23.5 mph	14.3 mph	23.5 mph	23.5 mph	14.3 mph

Hydraulic
Specification	WB91R-2	WB93R-2	WB97S-2	WB140-2N	WB142-5	WB146-5	WB146PS-5	WB150-2N	WB150AWS-2N	WB156-5	WB156PS-5
Pump Type	variable displacement axial piston	variable displacement axial piston	variable displacement axial piston	Closed center Load Sensing System	Tandem fixed displacement pumps	variable displacement piston	variable displacement piston	Closed center Load Sensing System	Closed center Load Sensing System	variable displacement piston	variable displacement axail piston
Pump Flow Capacity	43.6 gpm	43.6 gpm	43.6 gpm	43.6 gpm	37 gpm	43.6 gpm	43.6 gpm	43.6 gpm	43.6 gpm	43.6 gpm	43.6 gpm
Relief Valve Pressure	2,683 psi	2,901 psi	2,901 psi	3,000 psi	3,002 psi	3,553 psi	3,553 psi	3,200 psi	3,200 psi	3,553 psi	3,500 psi

Variants — Source comparison annotation
Source guide	Differing-field count reported
WB91R-2 to WB156PS-5	60

Ratios
Figure	WB91R-2	WB93R-2	WB97S-2	WB140-2N	WB142-5	WB146-5	WB146PS-5	WB150-2N	WB150AWS-2N	WB156-5
Engine horsepower per 1,000 lb of weight	5.0	5.9	5.6	4.4	5.3	5.5	5.5	4.8	4.8	5.7

Figure	WB91R-2	WB93R-2	WB97S-2	WB140-2N	WB142-5	WB146-5	WB146PS-5	WB150-2N	WB150AWS-2N	WB156-5	WB156PS-5
Pump flow per engine horsepower	0.53 gpm	0.45 gpm	0.45 gpm	0.50 gpm	0.48 gpm	0.49 gpm	0.49 gpm	0.46 gpm	0.46 gpm	0.46 gpm	0.46 gpm

Figure	WB91R-2	WB93R-2	WB97S-2	WB142-5	WB146-5	WB146PS-5	WB156-5	WB156PS-5
Fuel tank per engine horsepower	0.42 gal	0.35 gal	0.35 gal	0.42 gal	0.45 gal	0.45 gal	0.42 gal	0.42 gal

Reference directory classification
Equipment group	backhoe loader

WB91R-2 to WB156PS-5: forum references — Forum-title search
Forum index	Equipment class queried	Names in the search	Matching titles
Heavy Equipment Forums	backhoe loader	Komatsu and the WB93R, WB142, WB146, WB150 line that the WB93R-2, WB97S-2, WB140-2N, WB142-5 belongs to (no title names the exact model). That is too few titles to say what owners mostly ask about, so the most recent are listed instead	18

Komatsu Wb140 2n Motor Issues (Heavy Equipment Forums, 2025-11-27)
2002 Komatsu Wb140 2n No Electrical Power (Heavy Equipment Forums, 2025-07-13)
Komatsu Wb 150 (Heavy Equipment Forums, 2025-02-10)
Komatsu Wb146 5 Backhoe (Heavy Equipment Forums, 2024-07-26)

Used market for the WB91R-2 to WB156PS-5 — Dated first-page listing snapshot
Observation date	Listing source	Equipment search	Listings
2026-09-24	MachineryTrader	Komatsu backhoe loader	5

Model	Listed	Model years	Lowest asking	Highest asking	Median asking	Median hours
WB97S-2	1	2001	$22,659	$22,659	$22,659	None shown
WB140-2N	2	2003	$20,000	$37,500	$28,750	None shown
WB146PS-5	1	2008	$25,000	$25,000	$25,000	None shown
WB150-2N	1	2006	$29,000	$29,000	$29,000	None shown

WB91R-2 to WB156PS-5: recall reference — Dated CPSC search
Search date	Database	Names queried	Search result
2026-09-24	U.S. Consumer Product Safety Commission	Komatsu together with the backhoe loader WB91R-2, WB93R-2, WB97S-2, WB140-2N	No matching recall in this search

Sources for this page
Evidence class	Document, classification and recorded date
Reference site	Reference site: Komatsu WB91R-2 — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Komatsu WB93R-2 — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Komatsu WB97S-2 — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Komatsu WB140-2N — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Komatsu WB142-5 — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Komatsu WB146-5 — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Komatsu WB146PS-5 — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Komatsu WB150-2N — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Komatsu WB150AWS-2N — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Komatsu WB156-5 — RitchieSpecs. Observed 2026-09-24.
Reference site	Reference site: Komatsu WB156PS-5 — RitchieSpecs. Observed 2026-09-24.
Forum threads	Forum threads: Heavy Equipment Forums thread index for Komatsu WB91R-2 to WB156PS-5 — Heavy Equipment Forums. Observed 2026-09-24.
Used-market listings	Used-market listings: MachineryTrader listings for Komatsu WB97S-2 — MachineryTrader. Observed 2026-09-24.
Federal agency data	Federal agency data: Recall database search for Komatsu — U.S. Consumer Product Safety Commission. Observed 2026-09-24.

Recorded observations — Forum-title snapshot
Observation field	Recorded value
Title count	18
Forum indexes	Heavy Equipment Forums
Search wording	the WB91R-2 to WB156PS-5 backhoe loader
Latest title quoted by the reference	Komatsu Wb140 2n Motor Issues

Komatsu WB91R-2 to WB156PS-5: Configuration records

WB91R-2

Specification	Source figure
Backhoe
Load Height - Std	8.21 ft
Reach From Swivel - Std	18.21 ft
Dig Depth - Std	14.77 ft
Bucket Dig Force - Std	7,871 lb
Reach At Load Height - Std	18.21 ft
Reach From Swivel - Ext	21.49 ft
Dig Depth - Ext	18.54 ft
Load Height - Ext	11.49 ft
Reach At Load Height - Ext	21.49 ft
Dimensions and weight
Transport Length	19.35 ft
Transport Width	7.62 ft
Transport Height	12.01 ft
Wheelbase	7.14 ft
Ground Clearance	1.42 ft
Height To Top Of Suspended Cab	9.03 ft
Loader
Clearance At Max Dump Height	9.03 ft
Reach At Max Dump Height	2.47 ft
Bucket Width	91.34 in
Bucket Capacity	1.35 yd3
Bucket Breakout Force	13,405 lb
Dig Depth	4.34 in
Lift Capacity At Full Height	9,304 lb
Engine
Engine Model	4D106-1FA
Gross Power	90.8 hp
Displacement	269.3 cu in
Number Of Cylinders	4
Net Power	82.5 hp
Power Measured @	2,200 rpm
Torque Measured @	1,500 rpm
Net Max Torque	228.7 lb-ft
Aspiration	natural
Operational
Fuel Capacity	34.4 gal
Cooling System Fluid Capacity	4.8 gal
Turning Radius	17.9 ft
Tire Size Front - 2wd / 4wd	12.5/80 R18- 10 PR
Rear Tires Size 2wd/4wd	16.9 x 28 - 10 PR
Operating Weight 4wd	16,535 lb
Max Weight	18,916 lb
Hydraulic System Fluid Capacity	24.4 gal
Oil System Fluid Capacity	2.3 gal
Front Axle Fluid Capacity	2.2 gal
Rear Axle Fluid Capacity	4.9 gal
Operating Voltage	12 V
Alternator Supplied Amperage	60 amps
Transmission Fluid Capacity	4.3 gal
Transmission and speeds
Transmission Type	full power shift, Electronic Gear Management
Number Of Forward Gears	4
Number Of Reverse Gears	4
Max Speed - Forward	24.9 mph
Max Speed Reverse	24.9 mph
Hydraulic
Pump Type	variable displacement axial piston
Pump Flow Capacity	43.6 gpm
Relief Valve Pressure	2,683 psi

Source

WB93R-2

Specification	Source figure
Backhoe
Load Height - Std	12.14 ft
Reach From Swivel - Std	18.21 ft
Dig Depth - Std	16.25 ft
Bucket Dig Force - Std	8,488 lb
Reach At Load Height - Std	8.21 ft
Reach From Swivel - Ext	21.49 ft
Dig Depth - Ext	20.02 ft
Load Height - Ext	15.85 ft
Reach At Load Height - Ext	11.49 ft
Dimensions and weight
Transport Length	19.35 ft
Transport Width	7.62 ft
Transport Height	12.01 ft
Wheelbase	7.14 ft
Ground Clearance	1.42 ft
Height To Top Of Suspended Cab	9.03 ft
Loader
Clearance At Max Dump Height	9.03 ft
Reach At Max Dump Height	2.47 ft
Bucket Width	91.34 in
Bucket Capacity	1.35 yd3
Bucket Breakout Force	14,350 lb
Dig Depth	4.34 in
Lift Capacity At Full Height	8,598 lb
Engine
Engine Model	S4D106-2SFA
Gross Power	100 hp
Displacement	269.3 cu in
Number Of Cylinders	4
Net Power	97.8 hp
Power Measured @	2,200 rpm
Torque Measured @	1,600 rpm
Net Max Torque	278.8 lb-ft
Aspiration	natural
Operational
Fuel Capacity	34.4 gal
Cooling System Fluid Capacity	4.8 gal
Turning Radius	17.9 ft
Tire Size Front - 2wd / 4wd	12.5/80 R18 - 10 PR
Rear Tires Size 2wd/4wd	16.9 x 28 - 10 PR
Operating Weight 4wd	16,535 lb
Max Weight	18,916 lb
Hydraulic System Fluid Capacity	24.4 gal
Oil System Fluid Capacity	2.3 gal
Front Axle Fluid Capacity	2.2 gal
Rear Axle Fluid Capacity	4.9 gal
Operating Voltage	12 V
Alternator Supplied Amperage	80 amps
Transmission Fluid Capacity	4.3 gal
Transmission and speeds
Transmission Type	full power shift 4WD
Number Of Forward Gears	4
Number Of Reverse Gears	4
Max Speed - Forward	24.9 mph
Max Speed Reverse	24.9 mph
Hydraulic
Pump Type	variable displacement axial piston
Pump Flow Capacity	43.6 gpm
Relief Valve Pressure	2,901 psi

Source

WB97S-2

Specification	Source figure
Backhoe
Load Height - Std	12.14 ft
Reach From Swivel - Std	18.21 ft
Dig Depth - Std	14.77 ft
Bucket Dig Force - Std	8,488 lb
Reach At Load Height - Std	8.21 ft
Reach From Swivel - Ext	21.49 ft
Dig Depth - Ext	18.54 ft
Load Height - Ext	15.85 ft
Reach At Load Height - Ext	11.49 ft
Dimensions and weight
Transport Width	7.94 ft
Transport Height	12.01 ft
Wheelbase	7.14 ft
Ground Clearance	1.42 ft
Height To Top Of Suspended Cab	9.03 ft
Loader
Clearance At Max Dump Height	9.03 ft
Reach At Max Dump Height	2.47 ft
Bucket Width	95.28 in
Bucket Capacity	1.44 yd3
Bucket Breakout Force	14,350 lb
Dig Depth	4.34 in
Lift Capacity At Full Height	8,653 lb
Engine
Engine Model	S4D106-1FA
Gross Power	113 hp
Displacement	269.3 cu in
Number Of Cylinders	4
Net Power	97.9 hp
Power Measured @	2,200 rpm
Torque Measured @	1,500 rpm
Net Max Torque	276.6 lb-ft
Aspiration	turbocharged
Operational
Fuel Capacity	34.4 gal
Cooling System Fluid Capacity	4.8 gal
Turning Radius	15.5 ft
Tire Size Front - 2wd / 4wd	16.9 x 24 - 12 PR
Rear Tires Size 2wd/4wd	16.9 x 24 - 12 PR
Operating Weight 4wd	17,637 lb
Max Weight	19,621 lb
Hydraulic System Fluid Capacity	24.4 gal
Oil System Fluid Capacity	2.3 gal
Front Axle Fluid Capacity	2.2 gal
Rear Axle Fluid Capacity	4.9 gal
Operating Voltage	12 V
Alternator Supplied Amperage	80 amps
Transmission Fluid Capacity	4.3 gal
Transmission and speeds
Transmission Type	full powershift, 4WD
Number Of Forward Gears	4
Number Of Reverse Gears	4
Max Speed - Forward	24.9 mph
Max Speed Reverse	14.3 mph
Hydraulic
Pump Type	variable displacement axial piston
Pump Flow Capacity	43.6 gpm
Relief Valve Pressure	2,901 psi

Source

WB140-2N

Specification	Source figure
Backhoe
Dig Depth - Std	14.59 ft
Bucket Dig Force - Std	8,825 lb
Reach At Load Height - Std	9.39 ft
Dig Depth - Ext	18.34 ft
Reach At Load Height - Ext	12.5 ft
Dimensions and weight
Transport Length	23.99 ft
Transport Width	7.73 ft
Transport Height	11.65 ft
Wheelbase	7.14 ft
Ground Clearance	1.05 ft
Height To Top Of Suspended Cab	9.03 ft
Dump Angle	45
Front Tread Range	74.41 in
Rear Tread Range	70.87 in
Rollback @ Ground	45 degrees
Loader
Clearance At Max Dump Height	9 ft
Reach At Max Dump Height	9.39 ft
Bucket Width	92.72 in
Bucket Capacity	1.25 yd3
Bucket Breakout Force	12,790 lb
Dig Depth	3.55 in
Lift Capacity At Full Height	8,270 lb
Engine
Engine Model	S4D106-2XFH
Gross Power	93 hp
Displacement	268.6 cu in
Number Of Cylinders	4
Net Power	87 hp
Power Measured @	2,200 rpm
Torque Measured @	1,400 rpm
Net Max Torque	256.7 lb-ft
Aspiration	Turbocharged
Engine Make	Komatsu
Bore	4.2 in
Stroke	5 in
Operational
Cooling System Fluid Capacity	3.7 gal
Turning Radius	14.2 ft
Max Weight	19,731 lb
Hydraulic System Fluid Capacity	24.4 gal
Oil System Fluid Capacity	2.1 gal
Front Axle Fluid Capacity	2.3 gal
Rear Axle Fluid Capacity	4.7 gal
Operating Voltage	12 V
Alternator Supplied Amperage	80 amps
Transmission and speeds
Number Of Forward Gears	4
Number Of Reverse Gears	4
Max Speed - Forward	23.5 mph
Max Speed Reverse	23.5 mph
Hydraulic
Pump Type	Closed center Load Sensing System
Pump Flow Capacity	43.6 gpm
Relief Valve Pressure	3,000 psi

Source

WB142-5

Specification	Source figure
Backhoe
Load Height - Std	11.82 ft
Reach From Swivel - Std	18.31 ft
Dig Depth - Std	14.17 ft
Load At Max Lift - Std	2,976 lb
Dimensions and weight
Transport Length	23.17 ft
Transport Width	7.16 ft
Transport Height	12.01 ft
Wheelbase	7.14 ft
Ground Clearance	1.25 ft
Height To Top Of Suspended Cab	9.26 ft
Loader
Clearance At Max Dump Height	8.58 ft
Reach At Max Dump Height	2.99 ft
Bucket Width	85.83 in
Bucket Capacity	1.01 yd3
Bucket Breakout Force	11,351 lb
Dig Depth	3.94 in
Lift Capacity At Full Height	6,327 lb
Engine
Engine Model	4D102LE-2
Gross Power	80.5 hp
Displacement	275 cu in
Number Of Cylinders	4
Net Power	76.5 hp
Power Measured @	2,200 rpm
Torque Measured @	1,300 rpm
Net Max Torque	221 lb-ft
Aspiration	Naturally
Operational
Operating Weight 2wd	14,518 lb
Fuel Capacity	31.8 gal
Cooling System Fluid Capacity	3.7 gal
Turning Radius	11.9 ft
Operating Weight 4wd	14,518 lb
Hydraulic System Fluid Capacity	25.7 gal
Oil System Fluid Capacity	2.4 gal
Front Axle Fluid Capacity	1.9 gal
Rear Axle Fluid Capacity	3.9 gal
Operating Voltage	12 V
Alternator Supplied Amperage	95 amps
Transmission Fluid Capacity	4.8 gal
Transmission and speeds
Transmission Type	synchronized gearbox, powershift shuttle
Number Of Forward Gears	4
Number Of Reverse Gears	4
Max Speed - Forward	23 mph
Max Speed Reverse	23 mph
Hydraulic
Pump Type	Tandem fixed displacement pumps
Pump Flow Capacity	37 gpm
Relief Valve Pressure	3,002 psi

Source

WB146-5

Specification	Source figure
Backhoe
Load Height - Std	12.07 ft
Reach From Swivel - Std	18.84 ft
Dig Depth - Std	14.52 ft
Reach From Swivel - Ext	22.17 ft
Dig Depth - Ext	18.16 ft
Load Height - Ext	14.34 ft
Load At Max Lift - Std	3,270 lb
Load At Max Lift - Ext	1,834 lb
Dimensions and weight
Transport Length	24.39 ft
Transport Width	7.73 ft
Transport Height	13.88 ft
Wheelbase	7.14 ft
Ground Clearance	1.42 ft
Height To Top Of Suspended Cab	9.63 ft
Loader
Clearance At Max Dump Height	8.61 ft
Reach At Max Dump Height	2.47 ft
Bucket Width	92.76 in
Bucket Capacity	1.25 yd3
Bucket Breakout Force	13,224 lb
Dig Depth	5.44 in
Lift Capacity At Full Height	8,598 lb
Engine
Engine Model	S4D102LE-2
Gross Power	92.6 hp
Displacement	275 cu in
Number Of Cylinders	4
Net Power	88.6 hp
Power Measured @	2,200 rpm
Torque Measured @	1,500 rpm
Net Max Torque	300 lb-ft
Aspiration	turbocharged
Operational
Operating Weight 2wd	16,094 lb
Fuel Capacity	39.7 gal
Cooling System Fluid Capacity	3.7 gal
Turning Radius	11.2 ft
Tire Size Front - 2wd / 4wd	14 x 17.5 10ply R4
Rear Tires Size 2wd/4wd	19.5 x 24 10ply R4
Operating Weight 4wd	16,094 lb
Hydraulic System Fluid Capacity	25.7 gal
Oil System Fluid Capacity	2.4 gal
Front Axle Fluid Capacity	1.9 gal
Rear Axle Fluid Capacity	3.9 gal
Operating Voltage	12 V
Alternator Supplied Amperage	95 amps
Transmission Fluid Capacity	5.4 gal
Transmission and speeds
Transmission Type	synchronized gearbox, powershift shuttle
Number Of Forward Gears	4
Number Of Reverse Gears	4
Max Speed - Forward	23.5 mph
Max Speed Reverse	23.5 mph
Hydraulic
Pump Type	variable displacement piston
Pump Flow Capacity	43.6 gpm
Relief Valve Pressure	3,553 psi

Source

WB146PS-5

Specification	Source figure
Backhoe
Load Height - Std	12.07 ft
Reach From Swivel - Std	18.84 ft
Dig Depth - Std	14.52 ft
Reach From Swivel - Ext	22.17 ft
Dig Depth - Ext	18.16 ft
Load Height - Ext	14.34 ft
Load At Max Lift - Std	3,270 lb
Load At Max Lift - Ext	1,834 lb
Dimensions and weight
Transport Length	24.39 ft
Transport Width	7.73 ft
Transport Height	13.88 ft
Wheelbase	7.14 ft
Ground Clearance	1.42 ft
Height To Top Of Suspended Cab	9.63 ft
Loader
Clearance At Max Dump Height	8.61 ft
Reach At Max Dump Height	2.47 ft
Bucket Width	92.76 in
Bucket Capacity	1.25 yd3
Bucket Breakout Force	13,224 lb
Dig Depth	5.44 in
Lift Capacity At Full Height	8,598 lb
Engine
Engine Model	S4D102LE-2
Gross Power	92.6 hp
Displacement	275 cu in
Number Of Cylinders	4
Net Power	88.6 hp
Power Measured @	2,200 rpm
Torque Measured @	1,500 rpm
Net Max Torque	300 lb-ft
Aspiration	turbocharged
Operational
Operating Weight 2wd	16,094 lb
Fuel Capacity	39.7 gal
Cooling System Fluid Capacity	3.7 gal
Turning Radius	11.2 ft
Tire Size Front - 2wd / 4wd	14 x 17.5 10ply R4
Rear Tires Size 2wd/4wd	19.5 x 24 10ply R4
Operating Weight 4wd	16,094 lb
Hydraulic System Fluid Capacity	25.7 gal
Oil System Fluid Capacity	2.4 gal
Front Axle Fluid Capacity	1.9 gal
Rear Axle Fluid Capacity	3.9 gal
Operating Voltage	12 V
Alternator Supplied Amperage	95 amps
Transmission Fluid Capacity	7.4 gal
Transmission and speeds
Transmission Type	full power shift, gears
Number Of Forward Gears	4
Number Of Reverse Gears	3
Max Speed - Forward	24.9 mph
Max Speed Reverse	14.3 mph
Hydraulic
Pump Type	variable displacement piston
Pump Flow Capacity	43.6 gpm
Relief Valve Pressure	3,553 psi

Source

WB150-2N

Specification	Source figure
Backhoe
Dig Depth - Std	15.59 ft
Bucket Dig Force - Std	9,350 lb
Reach At Load Height - Std	9.39 ft
Dig Depth - Ext	18.34 ft
Reach At Load Height - Ext	12.5 ft
Dimensions and weight
Transport Length	23.99 ft
Transport Width	7.73 ft
Transport Height	11.65 ft
Wheelbase	7.14 ft
Ground Clearance	1.05 ft
Height To Top Of Suspended Cab	9.03 ft
Dump Angle	45
Front Tread Range	74.41 in
Rear Tread Range	70.87 in
Rollback @ Ground	45 degrees
Loader
Clearance At Max Dump Height	9 ft
Reach At Max Dump Height	9.39 ft
Bucket Width	92.72 in
Bucket Capacity	1.25 yd3
Bucket Breakout Force	13,825 lb
Dig Depth	3.55 in
Lift Capacity At Full Height	8,925 lb
Engine
Engine Model	S4D106-2SFA
Gross Power	100 hp
Displacement	268.6 cu in
Number Of Cylinders	4
Net Power	94 hp
Power Measured @	2,200 rpm
Torque Measured @	1,400 rpm
Net Max Torque	256.7 lb-ft
Aspiration	Turbocharged
Engine Make	Komatsu
Bore	4.2 in
Stroke	5 in
Operational
Cooling System Fluid Capacity	3.7 gal
Turning Radius	14.2 ft
Max Weight	19,731 lb
Hydraulic System Fluid Capacity	24.4 gal
Oil System Fluid Capacity	2.1 gal
Front Axle Fluid Capacity	2.3 gal
Rear Axle Fluid Capacity	4.7 gal
Operating Voltage	12 V
Alternator Supplied Amperage	80 amps
Transmission and speeds
Number Of Forward Gears	4
Number Of Reverse Gears	4
Max Speed - Forward	23.5 mph
Max Speed Reverse	23.5 mph
Hydraulic
Pump Type	Closed center Load Sensing System
Pump Flow Capacity	43.6 gpm
Relief Valve Pressure	3,200 psi

Source

WB150AWS-2N

Specification	Source figure
Backhoe
Dig Depth - Std	14.92 ft
Bucket Dig Force - Std	9,350 lb
Reach At Load Height - Std	9.39 ft
Dig Depth - Ext	18.34 ft
Reach At Load Height - Ext	12.5 ft
Dimensions and weight
Transport Length	23.81 ft
Transport Width	8.06 ft
Transport Height	11.82 ft
Wheelbase	7.14 ft
Ground Clearance	1.42 ft
Height To Top Of Suspended Cab	9.44 ft
Dump Angle	45
Front Tread Range	76.78 in
Rear Tread Range	76.78 in
Rollback @ Ground	45 degrees
Loader
Clearance At Max Dump Height	9 ft
Reach At Max Dump Height	9.39 ft
Bucket Width	92.72 in
Bucket Capacity	1.25 yd3
Bucket Breakout Force	13,825 lb
Dig Depth	3.94 in
Lift Capacity At Full Height	8,925 lb
Engine
Engine Model	S4D106-2SFA
Gross Power	100 hp
Displacement	268.6 cu in
Number Of Cylinders	4
Net Power	94 hp
Power Measured @	2,200 rpm
Torque Measured @	1,400 rpm
Net Max Torque	256.7 lb-ft
Aspiration	Turbocharged
Engine Make	Komatsu
Bore	4.2 in
Stroke	5 in
Operational
Cooling System Fluid Capacity	3.7 gal
Turning Radius	14.2 ft
Max Weight	19,731 lb
Hydraulic System Fluid Capacity	24.4 gal
Oil System Fluid Capacity	2.1 gal
Front Axle Fluid Capacity	2.3 gal
Rear Axle Fluid Capacity	4.7 gal
Operating Voltage	12 V
Alternator Supplied Amperage	80 amps
Transmission and speeds
Transmission Type	Power shift
Number Of Forward Gears	4
Number Of Reverse Gears	3
Max Speed - Forward	24.9 mph
Hydraulic
Pump Type	Closed center Load Sensing System
Pump Flow Capacity	43.6 gpm
Relief Valve Pressure	3,200 psi

Source

WB156-5

Specification	Source figure
Backhoe
Load Height - Std	12.34 ft
Reach From Swivel - Std	19.8 ft
Dig Depth - Std	15.51 ft
Reach From Swivel - Ext	23.51 ft
Dig Depth - Ext	19.59 ft
Load Height - Ext	14.56 ft
Load At Max Lift - Std	3,245 lb
Load At Max Lift - Ext	1,841 lb
Dimensions and weight
Transport Length	24.62 ft
Transport Width	7.73 ft
Transport Height	13.88 ft
Wheelbase	7.14 ft
Ground Clearance	1.42 ft
Height To Top Of Suspended Cab	9.63 ft
Loader
Clearance At Max Dump Height	8.61 ft
Reach At Max Dump Height	2.47 ft
Bucket Width	92.76 in
Bucket Capacity	1.25 yd3
Bucket Breakout Force	13,224 lb
Dig Depth	5.44 in
Lift Capacity At Full Height	8,598 lb
Engine
Engine Model	S4D102LE-2
Gross Power	99 hp
Displacement	275 cu in
Number Of Cylinders	4
Net Power	95 hp
Power Measured @	2,200 rpm
Torque Measured @	1,500 rpm
Net Max Torque	305 lb-ft
Aspiration	turbocharged
Operational
Operating Weight 2wd	16,530 lb
Fuel Capacity	39.7 gal
Cooling System Fluid Capacity	3.7 gal
Turning Radius	11.2 ft
Operating Weight 4wd	16,530 lb
Hydraulic System Fluid Capacity	25.7 gal
Oil System Fluid Capacity	2.4 gal
Front Axle Fluid Capacity	1.9 gal
Rear Axle Fluid Capacity	3.9 gal
Operating Voltage	12 V
Alternator Supplied Amperage	95 amps
Transmission Fluid Capacity	5.4 gal
Transmission and speeds
Transmission Type	synchronized gearbox, power shuttle
Number Of Forward Gears	4
Number Of Reverse Gears	4
Max Speed - Forward	23.5 mph
Max Speed Reverse	23.5 mph
Hydraulic
Pump Type	variable displacement piston
Pump Flow Capacity	43.6 gpm
Relief Valve Pressure	3,553 psi

Source

WB156PS-5

Specification	Source figure
Backhoe
Load Height - Std	12.3 ft
Reach From Swivel - Std	19.83 ft
Dig Depth - Std	15.33 ft
Bucket Dig Force - Std	15.5 lb
Reach At Load Height - Std	10 ft
Reach From Swivel - Ext	23.5 ft
Dig Depth - Ext	19.55 ft
Load Height - Ext	14.56 ft
Reach At Load Height - Ext	13.91 ft
Bucket Dig Force - Ext	19.58 lb
Dimensions and weight
Transport Length	24.58 ft
Transport Width	7.75 ft
Transport Height	13.92 ft
Wheelbase	7.17 ft
Ground Clearance	1.42 ft
Height To Top Of Suspended Cab	9.67 ft
Loader
Clearance At Max Dump Height	14.58 ft
Reach At Max Dump Height	12.33 ft
Bucket Width	7.75 in
Bucket Capacity	1.25 yd3
Bucket Breakout Force	13,505 lb
Dig Depth	5.44 in
Lift Capacity At Full Height	8,598 lb
Engine
Engine Model	S4D102LE-2
Gross Power	99 hp
Displacement	275 cu in
Number Of Cylinders	4
Net Power	95 hp
Power Measured @	2,200 rpm
Torque Measured @	1,500 rpm
Net Max Torque	305 lb-ft
Aspiration	Turbocharged
Operational
Fuel Capacity	39.7 gal
Cooling System Fluid Capacity	3.7 gal
Turning Radius	13.1 ft
Hydraulic System Fluid Capacity	25.7 gal
Oil System Fluid Capacity	2.4 gal
Front Axle Fluid Capacity	2 gal
Rear Axle Fluid Capacity	3.9 gal
Operating Voltage	12 V
Alternator Supplied Amperage	95 amps
Transmission Fluid Capacity	5.4 gal
Transmission and speeds
Transmission Type	twist grip or electronic gear EGMTM
Number Of Forward Gears	4
Number Of Reverse Gears	3
Max Speed - Forward	24.9 mph
Max Speed Reverse	14.3 mph
Hydraulic
Pump Type	variable displacement axail piston
Pump Flow Capacity	43.6 gpm
Relief Valve Pressure	3,500 psi

Source

Compare Komatsu WB91R-2, WB93R-2, WB97S-2, WB140-2N, WB142-5, WB146-5, WB146PS-5, WB150-2N, WB150AWS-2N, WB156-5, WB156PS-5

Backhoe
Specification	WB91R-2	WB93R-2	WB97S-2	WB140-2N	WB142-5	WB146-5	WB146PS-5	WB150-2N	WB150AWS-2N	WB156-5	WB156PS-5
Dig Depth - Std	14.77 ft	16.25 ft	14.77 ft	14.59 ft	14.17 ft	14.52 ft	14.52 ft	15.59 ft	14.92 ft	15.51 ft	15.33 ft

Dimensions and weight
Specification	WB91R-2	WB93R-2	WB97S-2	WB140-2N	WB142-5	WB146-5	WB146PS-5	WB150-2N	WB150AWS-2N	WB156-5	WB156PS-5
Transport Width	7.62 ft	7.62 ft	7.94 ft	7.73 ft	7.16 ft	7.73 ft	7.73 ft	7.73 ft	8.06 ft	7.73 ft	7.75 ft
Transport Height	12.01 ft	12.01 ft	12.01 ft	11.65 ft	12.01 ft	13.88 ft	13.88 ft	11.65 ft	11.82 ft	13.88 ft	13.92 ft
Wheelbase	7.14 ft	7.14 ft	7.14 ft	7.14 ft	7.14 ft	7.14 ft	7.14 ft	7.14 ft	7.14 ft	7.14 ft	7.17 ft
Ground Clearance	1.42 ft	1.42 ft	1.42 ft	1.05 ft	1.25 ft	1.42 ft	1.42 ft	1.05 ft	1.42 ft	1.42 ft	1.42 ft
Height To Top Of Suspended Cab	9.03 ft	9.03 ft	9.03 ft	9.03 ft	9.26 ft	9.63 ft	9.63 ft	9.03 ft	9.44 ft	9.63 ft	9.67 ft

Loader
Specification	WB91R-2	WB93R-2	WB97S-2	WB140-2N	WB142-5	WB146-5	WB146PS-5	WB150-2N	WB150AWS-2N	WB156-5	WB156PS-5
Clearance At Max Dump Height	9.03 ft	9.03 ft	9.03 ft	9 ft	8.58 ft	8.61 ft	8.61 ft	9 ft	9 ft	8.61 ft	14.58 ft
Reach At Max Dump Height	2.47 ft	2.47 ft	2.47 ft	9.39 ft	2.99 ft	2.47 ft	2.47 ft	9.39 ft	9.39 ft	2.47 ft	12.33 ft
Dig Depth	4.34 in	4.34 in	4.34 in	3.55 in	3.94 in	5.44 in	5.44 in	3.55 in	3.94 in	5.44 in	5.44 in
Bucket Breakout Force	13,405 lb	14,350 lb	14,350 lb	12,790 lb	11,351 lb	13,224 lb	13,224 lb	13,825 lb	13,825 lb	13,224 lb	13,505 lb
Bucket Width	91.34 in	91.34 in	95.28 in	92.72 in	85.83 in	92.76 in	92.76 in	92.72 in	92.72 in	92.76 in	7.75 in
Bucket Capacity	1.35 yd3	1.35 yd3	1.44 yd3	1.25 yd3	1.01 yd3	1.25 yd3	1.25 yd3	1.25 yd3	1.25 yd3	1.25 yd3	1.25 yd3
Lift Capacity At Full Height	9,304 lb	8,598 lb	8,653 lb	8,270 lb	6,327 lb	8,598 lb	8,598 lb	8,925 lb	8,925 lb	8,598 lb	8,598 lb

Engine
Specification	WB91R-2	WB93R-2	WB97S-2	WB140-2N	WB142-5	WB146-5	WB146PS-5	WB150-2N	WB150AWS-2N	WB156-5	WB156PS-5
Number Of Cylinders	4	4	4	4	4	4	4	4	4	4	4
Engine Model	4D106-1FA	S4D106-2SFA	S4D106-1FA	S4D106-2XFH	4D102LE-2	S4D102LE-2	S4D102LE-2	S4D106-2SFA	S4D106-2SFA	S4D102LE-2	S4D102LE-2
Gross Power	90.8 hp	100 hp	113 hp	93 hp	80.5 hp	92.6 hp	92.6 hp	100 hp	100 hp	99 hp	99 hp
Net Power	82.5 hp	97.8 hp	97.9 hp	87 hp	76.5 hp	88.6 hp	88.6 hp	94 hp	94 hp	95 hp	95 hp
Power Measured @	2,200 rpm	2,200 rpm	2,200 rpm	2,200 rpm	2,200 rpm	2,200 rpm	2,200 rpm	2,200 rpm	2,200 rpm	2,200 rpm	2,200 rpm
Torque Measured @	1,500 rpm	1,600 rpm	1,500 rpm	1,400 rpm	1,300 rpm	1,500 rpm	1,500 rpm	1,400 rpm	1,400 rpm	1,500 rpm	1,500 rpm
Net Max Torque	228.7 lb-ft	278.8 lb-ft	276.6 lb-ft	256.7 lb-ft	221 lb-ft	300 lb-ft	300 lb-ft	256.7 lb-ft	256.7 lb-ft	305 lb-ft	305 lb-ft
Aspiration	natural	natural	turbocharged	Turbocharged	Naturally	turbocharged	turbocharged	Turbocharged	Turbocharged	turbocharged	Turbocharged
Displacement	269.3 cu in	269.3 cu in	269.3 cu in	268.6 cu in	275 cu in	275 cu in	275 cu in	268.6 cu in	268.6 cu in	275 cu in	275 cu in

Operational
Specification	WB91R-2	WB93R-2	WB97S-2	WB140-2N	WB142-5	WB146-5	WB146PS-5	WB150-2N	WB150AWS-2N	WB156-5	WB156PS-5
Hydraulic System Fluid Capacity	24.4 gal	24.4 gal	24.4 gal	24.4 gal	25.7 gal	25.7 gal	25.7 gal	24.4 gal	24.4 gal	25.7 gal	25.7 gal
Oil System Fluid Capacity	2.3 gal	2.3 gal	2.3 gal	2.1 gal	2.4 gal	2.4 gal	2.4 gal	2.1 gal	2.1 gal	2.4 gal	2.4 gal
Cooling System Fluid Capacity	4.8 gal	4.8 gal	4.8 gal	3.7 gal	3.7 gal	3.7 gal	3.7 gal	3.7 gal	3.7 gal	3.7 gal	3.7 gal
Front Axle Fluid Capacity	2.2 gal	2.2 gal	2.2 gal	2.3 gal	1.9 gal	1.9 gal	1.9 gal	2.3 gal	2.3 gal	1.9 gal	2 gal
Rear Axle Fluid Capacity	4.9 gal	4.9 gal	4.9 gal	4.7 gal	3.9 gal	3.9 gal	3.9 gal	4.7 gal	4.7 gal	3.9 gal	3.9 gal
Turning Radius	17.9 ft	17.9 ft	15.5 ft	14.2 ft	11.9 ft	11.2 ft	11.2 ft	14.2 ft	14.2 ft	11.2 ft	13.1 ft
Operating Voltage	12 V	12 V	12 V	12 V	12 V	12 V	12 V	12 V	12 V	12 V	12 V
Alternator Supplied Amperage	60 amps	80 amps	80 amps	80 amps	95 amps	95 amps	95 amps	80 amps	80 amps	95 amps	95 amps

Transmission and speeds
Specification	WB91R-2	WB93R-2	WB97S-2	WB140-2N	WB142-5	WB146-5	WB146PS-5	WB150-2N	WB150AWS-2N	WB156-5	WB156PS-5
Number Of Forward Gears	4	4	4	4	4	4	4	4	4	4	4
Number Of Reverse Gears	4	4	4	4	4	4	3	4	3	4	3
Max Speed - Forward	24.9 mph	24.9 mph	24.9 mph	23.5 mph	23 mph	23.5 mph	24.9 mph	23.5 mph	24.9 mph	23.5 mph	24.9 mph

Hydraulic
Specification	WB91R-2	WB93R-2	WB97S-2	WB140-2N	WB142-5	WB146-5	WB146PS-5	WB150-2N	WB150AWS-2N	WB156-5	WB156PS-5
Pump Type	variable displacement axial piston	variable displacement axial piston	variable displacement axial piston	Closed center Load Sensing System	Tandem fixed displacement pumps	variable displacement piston	variable displacement piston	Closed center Load Sensing System	Closed center Load Sensing System	variable displacement piston	variable displacement axail piston
Pump Flow Capacity	43.6 gpm	43.6 gpm	43.6 gpm	43.6 gpm	37 gpm	43.6 gpm	43.6 gpm	43.6 gpm	43.6 gpm	43.6 gpm	43.6 gpm
Relief Valve Pressure	2,683 psi	2,901 psi	2,901 psi	3,000 psi	3,002 psi	3,553 psi	3,553 psi	3,200 psi	3,200 psi	3,553 psi	3,500 psi

More in Komatsu: WB93R-5, WB70A-1/WB97R-2/WB98A-2 specs.

Komatsu WB91R-2 to WB156PS-5 specifications

Sources for this page

Komatsu WB91R-2 to WB156PS-5: Configuration records