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Komatsu WB93R-5 specifications

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Komatsu WB93R-5: backhoe loader.

Selected configuration figures
ConfigurationDocumented field and quantity
WB93R-5
Gross Power
99.3 hp
Operating Weight 4wd
16,447 lb
WB93R-5 specification matrix — Backhoe
SpecificationWB93R-5
Load Height - Std13.69 ft
Reach From Swivel - Std18.87 ft
Dig Depth - Std14.9 ft
Reach From Swivel - Ext22.04 ft
Dig Depth - Ext19.87 ft
Bucket Dig Force - Std13,444 lb
Load At Max Lift - Std3,307 lb
Load Height - Ext16.02 ft
Arm Breakout Force (ISO 6015)8.82 lb
Bucket Breakout Force (ISO 6015)13.45 lb
Dimensions and weight
SpecificationWB93R-5
Transport Length19.35 ft
Transport Width7.62 ft
Transport Height12.18 ft
Loader
SpecificationWB93R-5
Clearance At Max Dump Height8.93 ft
Lifting Capacity At Ground Level (ISO 14397)11.69 lb
4×1 Bucket Width0.01 ft
Breakout Force (ISO 14397)14.33 lb
Bucket Breakout Force_ -
Bucket Capacity1.31 yd3
Bucket Width91.34 in
Lift Capacity At Full Height8,598 lb
4×1 Bucket Capacity (ISO 7546)1.0m3
Lifting Capacity At Maximum Height8.6 lb
Standard Bucket Capacity (ISO 7546)1.03m3
Standard Bucket Width0.01 ft
Std Bucket Weight947.99 lb
Refils
SpecificationWB93R-5
Engine Oil781.2 cu in
Cooling System1,007 cu in
Fuel Tank9,154 cu in
Hydraulic Oil Tank2,502 cu in
Hydraulic Oil System Capacity5,919 cu in
Front Axle Oil518.8 cu in
Rear Axle Oil884.9 cu in
Gearbox Oil976.4 cu in
Tyres
SpecificationWB93R-5
Standard_Front12.5/80 R18 - 10 PR
Standard_Rear16.9 × 28 - 12 PR
Standard_Option_Front365/70 R18; 320/80 R18 IT 530; 12.5 - 20 MPT 10 PR
Standard_Option_Rear18.4 × 26 - 12 PR; 440/80 R28 IT 530; 16.9 - 30 IND 10 PR
Environment
SpecificationWB93R-5
Vibration Levels(EN 12096:1997)*
Hand/Arm≤ 2,5 m/s² (uncertainty K = 1,2 m/s²)
Body≤ 0,5 m/s² (uncertainty K = 0,2 m/s²
Steering System
SpecificationWB93R-5
Turning Radius W/O Brakes At Outer Edge Of Front Tyre14.3 ft
Turning Radius(Without Using Brakes)_At Outer Edge Of Front Tyre13.2 ft
Turning Radius (Using Brakes)_ At The Corner Of The Bucket)15.5 ft
Engine
SpecificationWB93R-5
CombustionDirect injection (DI)
Engine Power@ISO 14396992 hp
Air Filter TypeDry filter with safety element
Starting SystemElectric motor with per-heating air system for cold climate
Number Of Cylinders4
Engine ModelKomatsu S4D104E-3
Engine Typevertical, 4-cycle water-cooled diesel engine
Gross Power99.3 hp
Cooling Systemradiator
Max Torque309.8 lb-ft
Aspirationturbo-inter cooled
Displacement273,692 cu in
Bore4.1 in
Stroke5.2 in
Operational
SpecificationWB93R-5
Operating Weight 4wd16,447 lb
Fuel Capacity39.7 gal
Transmission and speeds
SpecificationWB93R-5
Transmission Typepower shuttle
Number Of Forward Gears4
Number Of Reverse Gears4
Max Speed - Forward24.9 mph
Max Speed Reverse24.9 mph
Weights
SpecificationWB93R-5
Standard Machine Operating Weight17.8 lb
Total Machine Weight19.9 lb
Operating Weight Increase_Standard Bucket-300
Operating Weight Increase_Offset Boom+190
Operating Weight Increase_ Standard Arm-260
Operating Weight Increase_ Pallet Forks-280
Operating Weight Increase_ Forks For 4×1 Bucket+150
Operating Weight17,571 lb
Hydraulic System
SpecificationWB93R-5
Pumps Control SystemLoad Sensing
Main ValveLIFD “Load Independent Flow Divider” modular type
Max Delivery43.6 gpm
SystemSyncroSystem
Pump Typevariable displacement axial pistons
Hydraulic System TypeClosed Load Sensing System, CLSS
Hydraulic
SpecificationWB93R-5
Pump TypeVDAP
Pump Flow Capacity43.6 gpm
Relief Valve Pressure3,626 psi
Brakes
SpecificationWB93R-5
Disc Diameter1 ft
Ratios
FigureWB93R-5
Engine horsepower per 1,000 lb of weight5.7
Pump flow per engine horsepower0.44 gpm
Fuel tank per engine horsepower0.40 gal
Reference directory classification
Equipment groupbackhoe loader
Where the WB93R-5 ranks in Komatsu's list — Scope of the captured comparison
BrandEquipment groupCompared entrySort order
Komatsubackhoe loaderWB93R-5Descending quantity; 1 is largest
FigureWB93R-5RankLowest in lineHighest in line
Engine power99.3 hp1 of 426.2 hp99.3 hp
Listed weight17,571 lb1 of 46,812 lb17,571 lb
Pump flow43.6 gpm1 (tied) of 330.7 gpm43.6 gpm
Fuel capacity39.7 gal1 of 48.0 gal39.7 gal
Horsepower per 1,000 lb5.7 hp2 of 43.8 hp5.7 hp
WB93R-5: forum references — Forum-title search
Forum indexEquipment class queriedNames in the searchMatching titles
Heavy Equipment Forumsbackhoe loaderKomatsu and the WB93R-5. That is too few titles to say what owners mostly ask about, so the most recent are listed instead1
Used market for the WB93R-5 — Dated first-page listing snapshot
Observation dateListing sourceEquipment searchListings
2026-09-24MachineryTraderKomatsu backhoe loader1
ModelListedModel yearsLowest askingHighest askingMedian askingMedian hours
WB93R-512008$31,882$31,882$31,882None shown
WB93R-5: recall reference — Dated CPSC search
Search dateDatabaseNames queriedSearch result
2026-09-24U.S. Consumer Product Safety CommissionKomatsu together with the backhoe loader WB93R-5No matching recall in this search

Sources for this page

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

Komatsu WB93R-5: Configuration records

WB93R-5
SpecificationSource figure
Backhoe
Load Height - Std13.69 ft
Reach From Swivel - Std18.87 ft
Dig Depth - Std14.9 ft
Reach From Swivel - Ext22.04 ft
Dig Depth - Ext19.87 ft
Bucket Dig Force - Std13,444 lb
Load At Max Lift - Std3,307 lb
Load Height - Ext16.02 ft
Arm Breakout Force (ISO 6015)8.82 lb
Bucket Breakout Force (ISO 6015)13.45 lb
Dimensions and weight
Transport Length19.35 ft
Transport Width7.62 ft
Transport Height12.18 ft
Loader
Clearance At Max Dump Height8.93 ft
Lifting Capacity At Ground Level (ISO 14397)11.69 lb
Refils
Engine Oil781.2 cu in
Cooling System1,007 cu in
Fuel Tank9,154 cu in
Hydraulic Oil Tank2,502 cu in
Hydraulic Oil System Capacity5,919 cu in
Front Axle Oil518.8 cu in
Rear Axle Oil884.9 cu in
Gearbox Oil976.4 cu in
Tyres
Standard_Front12.5/80 R18 - 10 PR
Standard_Rear16.9 × 28 - 12 PR
Standard_Option_Front365/70 R18; 320/80 R18 IT 530; 12.5 - 20 MPT 10 PR
Standard_Option_Rear18.4 × 26 - 12 PR; 440/80 R28 IT 530; 16.9 - 30 IND 10 PR
Environment
Vibration Levels(EN 12096:1997)*
Hand/Arm≤ 2,5 m/s² (uncertainty K = 1,2 m/s²)
Body≤ 0,5 m/s² (uncertainty K = 0,2 m/s²
Steering System
Turning Radius W/O Brakes At Outer Edge Of Front Tyre14.3 ft
Turning Radius(Without Using Brakes)_At Outer Edge Of Front Tyre13.2 ft
Turning Radius (Using Brakes)_ At The Corner Of The Bucket)15.5 ft
Engine
CombustionDirect injection (DI)
Operational
Operating Weight 4wd16,447 lb
Fuel Capacity39.7 gal
Transmission and speeds
Transmission Typepower shuttle
Number Of Forward Gears4
Number Of Reverse Gears4
Max Speed - Forward24.9 mph
Max Speed Reverse24.9 mph
Hydraulic System
Pumps Control SystemLoad Sensing
Main ValveLIFD “Load Independent Flow Divider” modular type
Max Delivery43.6 gpm
SystemSyncroSystem
Hydraulic System TypeClosed Load Sensing System, CLSS
Hydraulic
Pump Flow Capacity43.6 gpm
Relief Valve Pressure3,626 psi
Brakes
Disc Diameter1 ft
Additional specifications
Breakout Force (ISO 14397)14.33 lb
Bucket Capacity1.31 yd3
Bucket Width91.34 in
Lift Capacity At Full Height8,598 lb
Lifting Capacity At Maximum Height8.6 lb
Standard Bucket Capacity (ISO 7546)1.03m3
Standard Bucket Width0.01 ft
Std Bucket Weight947.99 lb
Air Filter TypeDry filter with safety element
Starting SystemElectric motor with per-heating air system for cold climate
Number Of Cylinders4
Engine ModelKomatsu S4D104E-3
Engine Typevertical, 4-cycle water-cooled diesel engine
Gross Power99.3 hp
Max Torque309.8 lb-ft
Aspirationturbo-inter cooled
Bore4.1 in
Stroke5.2 in
Operating Weight Increase_Standard Bucket-300
Operating Weight Increase_Offset Boom+190
Operating Weight Increase_ Standard Arm-260
Operating Weight Increase_ Pallet Forks-280
Operating Weight Increase_ Forks For 4×1 Bucket+150
Operating Weight17,571 lb
Pump Typevariable displacement axial pistons

Source

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