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Komatsu WB70A-1, WB97R-2, and WB98A-2 specifications

Entries in this reference
Listing-entry count
3
Short answer

Komatsu WB70A-1, WB97R-2, and WB98A-2: backhoe loaders.

Selected configuration figures
ConfigurationDocumented field and quantity
WB70A-1
Net Power
70.8 hp
Operating Weight 4wd
12,456 lb
WB97R-2
Gross Power
113 hp
Operating Weight 4wd
16,535 lb
WB98A-2
Gross Power
113 hp
Operating Weight 4wd
18,276 lb
WB70A-1, WB97R-2, and WB98A-2 specification matrix — Listing labels reported by the source
Publisher nameSource guideListing-entry countLabels named by the source
KomatsuWB70A-1, WB97R-2, and WB98A-23WB70A-1, WB97R-2, and WB98A-2
Backhoe
SpecificationWB70A-1WB97R-2WB98A-2
Load Height - Std10.18 ft12.14 ft13.39 ft
Reach From Swivel - Std15.31 ft18.21 ft18.21 ft
Dig Depth - Std12.06 ft14.77 ft14.77 ft
Reach At Load Height - Std3.6 ft8.21 ft8.47 ft
Reach From Swivel - Ext17.45 ft21.49 ft21.49 ft
Dig Depth - Ext14.41 ft18.54 ft18.54 ft
Bucket Dig Force - Std9,259 lb8,488 lb13,065 lb
Load Height - Ext11.85 ft15.85 ft16.67 ft
Reach At Load Height - Ext5.09 ft11.49 ft11.75 ft
Dimensions and weight
SpecificationWB70A-1WB97R-2WB98A-2
Transport Width6.07 ft7.62 ft7.39 ft
Transport Height10.15 ft12.01 ft11.98 ft
Wheelbase7.06 ft7.14 ft7.73 ft
Ground Clearance1.45 ft1.42 ft1.45 ft
Height To Top Of Suspended Cab8.73 ft9.03 ft9.59 ft
SpecificationWB97R-2
Transport Length19.35 ft
Loader
SpecificationWB70A-1WB97R-2WB98A-2
Clearance At Max Dump Height8.14 ft9.03 ft9.16 ft
Reach At Max Dump Height2.86 ft2.47 ft2.94 ft
Dig Depth4.34 in4.34 in2.96 in
Lift Capacity At Full Height4,652 lb8,598 lb7,106 lb
Bucket Capacity0.92 yd31.35 yd31.34 yd3
Bucket Width72.84 in91.34 in88.59 in
Bucket Breakout Force9,694 lb14,350 lb14,275 lb
Engine
SpecificationWB70A-1WB97R-2WB98A-2
Number Of Cylinders444
Engine Model4D98E-1FASD106-1FAS4D106-1FC
Net Power70.8 hp97.9 hp96.6 hp
Power Measured @2,500 rpm2,200 rpm2,200 rpm
Displacement202.5 cu in269.3 cu in269.3 cu in
SpecificationWB70A-1WB97R-2
Torque Measured @1,200 rpm1,500 rpm
Net Max Torque185.2 lb-ft276.6 lb-ft
SpecificationWB97R-2WB98A-2
Gross Power113 hp113 hp
SpecificationWB97R-2
Aspirationturbocharged
Operational
SpecificationWB70A-1WB97R-2WB98A-2
Fuel Capacity18.5 gal34.4 gal29.1 gal
Operating Weight 4wd12,456 lb16,535 lb18,276 lb
Max Weight14,110 lb18,916 lb19,291 lb
Hydraulic System Fluid Capacity17.2 gal24.4 gal23.8 gal
Oil System Fluid Capacity2.7 gal2.3 gal2.4 gal
Cooling System Fluid Capacity4 gal4.8 gal4.8 gal
Front Axle Fluid Capacity1.1 gal2.2 gal3.2 gal
Rear Axle Fluid Capacity1.4 gal4.9 gal2.7 gal
Tire Size Front - 2wd / 4wd12.5 x 2012.5 / 80 R18 - 10 PR16/70 x 24
Rear Tires Size 2wd/4wd12.5 x 2016.9 x 28 - 10 PR16/70 x 24
Operating Voltage12 V12 V12 V
Alternator Supplied Amperage60 amps60 amps60 amps
SpecificationWB97R-2
Transmission Fluid Capacity4.3 gal
Turning Radius17.9 ft
Transmission and speeds
SpecificationWB70A-1WB97R-2WB98A-2
Transmission TypeHydrostaticfull powershift, 4WDHydrostatic
Number Of Forward Gears444
Number Of Reverse Gears444
Max Speed - Forward24.3 mph24.9 mph22.4 mph
Max Speed Reverse24.3 mph14.3 mph22.4 mph
Hydraulic
SpecificationWB70A-1WB97R-2WB98A-2
Pump Typetwo gear pumpsvariable displacement axial pistongear pumps
Pump Flow Capacity30.7 gpm43.6 gpm43.6 gpm
Relief Valve Pressure2,901 psi2,901 psi2,901 psi
Variants — Source comparison annotation
Source guideDiffering-field count reported
WB70A-1, WB97R-2, and WB98A-247
Ratios
FigureWB70A-1WB97R-2WB98A-2
Engine horsepower per 1,000 lb of weight5.75.95.3
Pump flow per engine horsepower0.43 gpm0.45 gpm0.45 gpm
Fuel tank per engine horsepower0.26 gal0.35 gal0.30 gal
Reference directory classification
Equipment groupbackhoe loader
WB70A-1, WB97R-2, and WB98A-2: forum references — Forum-title search
Forum indexEquipment class queriedNames in the searchMatching titles
Heavy Equipment Forums and The Farming Forumbackhoe loaderKomatsu and the WB70A line that the WB70A-1, WB97R-2 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 instead2
Used market for the WB70A-1, WB97R-2, and WB98A-2 — Dated first-page listing snapshot
Observation dateListing sourceEquipment searchListings
2026-09-24MachineryTraderKomatsu backhoe loader1
ModelListedModel yearsLowest askingHighest askingMedian askingMedian hours
WB98A-212001None shownNone shownNone shownNone shown
WB70A-1, WB97R-2, and WB98A-2: recall reference — Dated CPSC search
Search dateDatabaseNames queriedSearch result
2026-09-24U.S. Consumer Product Safety CommissionKomatsu together with the backhoe loader WB70A-1, WB97R-2, WB98A-2No matching recall in this search

Sources for this page

Evidence classDocument, classification and recorded date
Reference site
Reference site
Reference site
Forum threads
Forum threads
Used-market listings
Federal agency data

Komatsu WB70A-1, WB97R-2, and WB98A-2 questions

Classification in the linked listing
GuideAs-listed machine class
Komatsu WB70A-1, WB97R-2, and WB98A-2backhoe loader
Dated listing search without advertised prices
DateListing indexEquipment classNames queriedListingsPrice observation
2026-09-24MachineryTraderbackhoe loaderWB98A-21No prices shown in this snapshot

Komatsu WB70A-1, WB97R-2, and WB98A-2: Configuration records

WB70A-1
SpecificationSource figure
Backhoe
Load Height - Std10.18 ft
Reach From Swivel - Std15.31 ft
Dig Depth - Std12.06 ft
Bucket Dig Force - Std9,259 lb
Reach At Load Height - Std3.6 ft
Reach From Swivel - Ext17.45 ft
Dig Depth - Ext14.41 ft
Load Height - Ext11.85 ft
Reach At Load Height - Ext5.09 ft
Dimensions and weight
Transport Width6.07 ft
Transport Height10.15 ft
Wheelbase7.06 ft
Ground Clearance1.45 ft
Height To Top Of Suspended Cab8.73 ft
Loader
Clearance At Max Dump Height8.14 ft
Reach At Max Dump Height2.86 ft
Bucket Width72.84 in
Bucket Capacity0.92 yd3
Bucket Breakout Force9,694 lb
Dig Depth4.34 in
Lift Capacity At Full Height4,652 lb
Engine
Engine Model4D98E-1FA
Displacement202.5 cu in
Number Of Cylinders4
Net Power70.8 hp
Power Measured @2,500 rpm
Torque Measured @1,200 rpm
Net Max Torque185.2 lb-ft
Operational
Fuel Capacity18.5 gal
Cooling System Fluid Capacity4 gal
Tire Size Front - 2wd / 4wd12.5 x 20
Rear Tires Size 2wd/4wd12.5 x 20
Operating Weight 4wd12,456 lb
Max Weight14,110 lb
Hydraulic System Fluid Capacity17.2 gal
Oil System Fluid Capacity2.7 gal
Front Axle Fluid Capacity1.1 gal
Rear Axle Fluid Capacity1.4 gal
Operating Voltage12 V
Alternator Supplied Amperage60 amps
Transmission and speeds
Transmission TypeHydrostatic
Number Of Forward Gears4
Number Of Reverse Gears4
Max Speed - Forward24.3 mph
Max Speed Reverse24.3 mph
Hydraulic
Pump Typetwo gear pumps
Pump Flow Capacity30.7 gpm
Relief Valve Pressure2,901 psi

Source

WB97R-2
SpecificationSource figure
Backhoe
Load Height - Std12.14 ft
Reach From Swivel - Std18.21 ft
Dig Depth - Std14.77 ft
Bucket Dig Force - Std8,488 lb
Reach At Load Height - Std8.21 ft
Reach From Swivel - Ext21.49 ft
Dig Depth - Ext18.54 ft
Load Height - Ext15.85 ft
Reach At Load Height - Ext11.49 ft
Dimensions and weight
Transport Length19.35 ft
Transport Width7.62 ft
Transport Height12.01 ft
Wheelbase7.14 ft
Ground Clearance1.42 ft
Height To Top Of Suspended Cab9.03 ft
Loader
Clearance At Max Dump Height9.03 ft
Reach At Max Dump Height2.47 ft
Bucket Width91.34 in
Bucket Capacity1.35 yd3
Bucket Breakout Force14,350 lb
Dig Depth4.34 in
Lift Capacity At Full Height8,598 lb
Engine
Engine ModelSD106-1FA
Gross Power113 hp
Displacement269.3 cu in
Number Of Cylinders4
Net Power97.9 hp
Power Measured @2,200 rpm
Torque Measured @1,500 rpm
Net Max Torque276.6 lb-ft
Aspirationturbocharged
Operational
Fuel Capacity34.4 gal
Cooling System Fluid Capacity4.8 gal
Turning Radius17.9 ft
Tire Size Front - 2wd / 4wd12.5 / 80 R18 - 10 PR
Rear Tires Size 2wd/4wd16.9 x 28 - 10 PR
Operating Weight 4wd16,535 lb
Max Weight18,916 lb
Hydraulic System Fluid Capacity24.4 gal
Oil System Fluid Capacity2.3 gal
Front Axle Fluid Capacity2.2 gal
Rear Axle Fluid Capacity4.9 gal
Operating Voltage12 V
Alternator Supplied Amperage60 amps
Transmission Fluid Capacity4.3 gal
Transmission and speeds
Transmission Typefull powershift, 4WD
Number Of Forward Gears4
Number Of Reverse Gears4
Max Speed - Forward24.9 mph
Max Speed Reverse14.3 mph
Hydraulic
Pump Typevariable displacement axial piston
Pump Flow Capacity43.6 gpm
Relief Valve Pressure2,901 psi

Source

WB98A-2
SpecificationSource figure
Backhoe
Load Height - Std13.39 ft
Reach From Swivel - Std18.21 ft
Dig Depth - Std14.77 ft
Bucket Dig Force - Std13,065 lb
Reach At Load Height - Std8.47 ft
Reach From Swivel - Ext21.49 ft
Dig Depth - Ext18.54 ft
Load Height - Ext16.67 ft
Reach At Load Height - Ext11.75 ft
Dimensions and weight
Transport Width7.39 ft
Transport Height11.98 ft
Wheelbase7.73 ft
Ground Clearance1.45 ft
Height To Top Of Suspended Cab9.59 ft
Loader
Clearance At Max Dump Height9.16 ft
Reach At Max Dump Height2.94 ft
Bucket Width88.59 in
Bucket Capacity1.34 yd3
Bucket Breakout Force14,275 lb
Dig Depth2.96 in
Lift Capacity At Full Height7,106 lb
Engine
Engine ModelS4D106-1FC
Gross Power113 hp
Displacement269.3 cu in
Number Of Cylinders4
Net Power96.6 hp
Power Measured @2,200 rpm
Operational
Fuel Capacity29.1 gal
Cooling System Fluid Capacity4.8 gal
Tire Size Front - 2wd / 4wd16/70 x 24
Rear Tires Size 2wd/4wd16/70 x 24
Operating Weight 4wd18,276 lb
Max Weight19,291 lb
Hydraulic System Fluid Capacity23.8 gal
Oil System Fluid Capacity2.4 gal
Front Axle Fluid Capacity3.2 gal
Rear Axle Fluid Capacity2.7 gal
Operating Voltage12 V
Alternator Supplied Amperage60 amps
Transmission and speeds
Transmission TypeHydrostatic
Number Of Forward Gears4
Number Of Reverse Gears4
Max Speed - Forward22.4 mph
Max Speed Reverse22.4 mph
Hydraulic
Pump Typegear pumps
Pump Flow Capacity43.6 gpm
Relief Valve Pressure2,901 psi

Source

Compare Komatsu WB70A-1, WB97R-2, WB98A-2
Backhoe
SpecificationWB70A-1WB97R-2WB98A-2
Load Height - Std10.18 ft12.14 ft13.39 ft
Reach From Swivel - Std15.31 ft18.21 ft18.21 ft
Dig Depth - Std12.06 ft14.77 ft14.77 ft
Reach At Load Height - Std3.6 ft8.21 ft8.47 ft
Reach From Swivel - Ext17.45 ft21.49 ft21.49 ft
Dig Depth - Ext14.41 ft18.54 ft18.54 ft
Bucket Dig Force - Std9,259 lb8,488 lb13,065 lb
Load Height - Ext11.85 ft15.85 ft16.67 ft
Reach At Load Height - Ext5.09 ft11.49 ft11.75 ft
Dimensions and weight
SpecificationWB70A-1WB97R-2WB98A-2
Transport Width6.07 ft7.62 ft7.39 ft
Transport Height10.15 ft12.01 ft11.98 ft
Wheelbase7.06 ft7.14 ft7.73 ft
Ground Clearance1.45 ft1.42 ft1.45 ft
Height To Top Of Suspended Cab8.73 ft9.03 ft9.59 ft
Loader
SpecificationWB70A-1WB97R-2WB98A-2
Clearance At Max Dump Height8.14 ft9.03 ft9.16 ft
Reach At Max Dump Height2.86 ft2.47 ft2.94 ft
Dig Depth4.34 in4.34 in2.96 in
Lift Capacity At Full Height4,652 lb8,598 lb7,106 lb
Bucket Capacity0.92 yd31.35 yd31.34 yd3
Bucket Width72.84 in91.34 in88.59 in
Bucket Breakout Force9,694 lb14,350 lb14,275 lb
Engine
SpecificationWB70A-1WB97R-2WB98A-2
Number Of Cylinders444
Engine Model4D98E-1FASD106-1FAS4D106-1FC
Net Power70.8 hp97.9 hp96.6 hp
Power Measured @2,500 rpm2,200 rpm2,200 rpm
Displacement202.5 cu in269.3 cu in269.3 cu in
Operational
SpecificationWB70A-1WB97R-2WB98A-2
Fuel Capacity18.5 gal34.4 gal29.1 gal
Operating Weight 4wd12,456 lb16,535 lb18,276 lb
Max Weight14,110 lb18,916 lb19,291 lb
Hydraulic System Fluid Capacity17.2 gal24.4 gal23.8 gal
Oil System Fluid Capacity2.7 gal2.3 gal2.4 gal
Cooling System Fluid Capacity4 gal4.8 gal4.8 gal
Front Axle Fluid Capacity1.1 gal2.2 gal3.2 gal
Rear Axle Fluid Capacity1.4 gal4.9 gal2.7 gal
Tire Size Front - 2wd / 4wd12.5 x 2012.5 / 80 R18 - 10 PR16/70 x 24
Rear Tires Size 2wd/4wd12.5 x 2016.9 x 28 - 10 PR16/70 x 24
Operating Voltage12 V12 V12 V
Alternator Supplied Amperage60 amps60 amps60 amps
Transmission and speeds
SpecificationWB70A-1WB97R-2WB98A-2
Transmission TypeHydrostaticfull powershift, 4WDHydrostatic
Number Of Forward Gears444
Number Of Reverse Gears444
Max Speed - Forward24.3 mph24.9 mph22.4 mph
Max Speed Reverse24.3 mph14.3 mph22.4 mph
Hydraulic
SpecificationWB70A-1WB97R-2WB98A-2
Pump Typetwo gear pumpsvariable displacement axial pistongear pumps
Pump Flow Capacity30.7 gpm43.6 gpm43.6 gpm
Relief Valve Pressure2,901 psi2,901 psi2,901 psi

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