Komatsuwheel loadermedium (wa140 - wa380)
Komatsu WB140PS-2(S/N 140F50001-Up)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu WB140PS-2 is a mid-size backhoe loader in the WB140 series, designed for utility and construction applications. It is powered by the Komatsu S4D106-2XFH diesel engine. The machine features a full powershift transmission with four-wheel drive. Operating weight varies by configuration and series. Production years are not documented for this exact serial range. The WB140PS-2 is part of the WB140-2 lineage. Configurations offered include standard and extended backhoe options.
The WB140PS-2 introduced an electronically controlled four-wheel-drive system and full powershift transmission compared to earlier WB140 models. This generation improved driving performance and traction. The machine remains relevant in the used market due to its durable powertrain and common component base. Parts availability is supported by the broader WB140 series ecosystem. The WB140PS-2 is succeeded by later WB140 series updates.
Below: full specifications, fluids & capacities, the factory service schedule, common service parts, verified fault codes, what owners discuss, attachment guidance, the complete assembly directory, and a serial-number reference. Complete parts lists with full OEM part numbers, exploded diagrams, quantities, and fitment data are available free in Heavy Parts AI.
Komatsu WB140PS-2(S/N 140F50001-Up) specifications
Engine
| Model | Komatsu S4D1061FH |
| Rated Output | 86 HP |
| Cylinders | 4 |
| Emissions Tier | Not documented for this exact serial range — verify with your dealer |
| Displacement | Not documented for this exact serial range — verify with your dealer |
| Gross/Net Power | 86 HP (Rated Output) |
Weights
| Operating Weight | Not documented for this exact serial range — verify with your dealer |
| Shipping Weight | Not documented for this exact serial range — verify with your dealer |
| Ground Pressure | Not documented for this exact serial range — verify with your dealer |
Dimensions
| Transport Length | Not documented for this exact serial range — verify with your dealer |
| Transport Width | Not documented for this exact serial range — verify with your dealer |
| Transport Height | Not documented for this exact serial range — verify with your dealer |
| Wheelbase | Not documented for this exact serial range — verify with your dealer |
| Ground Clearance | Not documented for this exact serial range — verify with your dealer |
Performance
| Travel Speeds | Not documented for this exact serial range — verify with your dealer |
| Lift/Dig/Dump Capacity | Not documented for this exact serial range — verify with your dealer |
| Gradeability | Not documented for this exact serial range — verify with your dealer |
Service capacities (summary)
| Cooling System | 1.37 gal (5.19 L) |
| Fuel Tank | Not documented for this exact serial range — verify with your dealer |
| Hydraulic System | Not documented for this exact serial range — verify with your dealer |
| Engine Oil | Not documented for this exact serial range — verify with your dealer |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
Komatsu WB140PS-2(S/N 140F50001-Up) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
Servicing the WB140PS-2(S/N 140F50001-Up) beyond the schedule
Predictive Maintenance & Fluid Analysis
Monitor Komatsu KOWA oil analysis results for the S4D106-2XFH engine to detect wear metals early. Check hydraulic oil condition at 500-hour intervals to prevent pump damage. Inspect axle oil for contamination during every service. Use Komatsu Genuine Lubricants to maintain component life. Track fluid levels daily to avoid overheating. Analyze fuel filters for water ingress to protect the injection system.
Corrective & Common Repairs
Address starter relay failures common in the WB140PS-2 electrical system. Replace worn drive shaft components if vibration occurs. Repair hydraulic cylinder seals on the backhoe boom and arm to prevent leaks. Fix transmission clutch issues by adjusting pressure settings. Replace worn tires to maintain traction and stability. Inspect and replace faulty sensors triggering fault codes.
Overhaul & Rebuild Points
Rebuild the S4D106-2XFH engine at 10,000 hours or when compression drops. Overhaul the hydraulic pump if flow rates decline. Rebuild the transmission if clutch slippage persists after adjustment. Inspect the turbocharger for shaft play and replace if necessary. Rebuild the final drives if oil contamination is severe. Replace worn swing bracket components to maintain backhoe alignment.
Seasonal & Environment Servicing
Check coolant concentration before winter to prevent freezing. Inspect battery health in cold weather. Use appropriate viscosity oil for temperature ranges. Clean the radiator and cooler cores to prevent overheating in dusty environments. Inspect air intake systems for blockages. Check hydraulic hoses for cracking in extreme cold. Lubricate all grease points frequently in wet or muddy conditions.
WB140PS-2(S/N 140F50001-Up) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| YM129470-55610 | Body, Fuel Filter | Fuel system service | Check fitment → |
| 312613070 | Oil Filter Fastener | Lubrication service | Check fitment → |
| YM119593-03100 | Filter Breather | Scheduled service item | Check fitment → |
| YM119000-55600 | Filter Element | Scheduled service item | Check fitment → |
| 312607632 | Filter Support | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
WB140PS-2(S/N 140F50001-Up) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| CA115 | Engine crankshaft speed sensor and backup speed sensor failure | Faulty speed sensor, broken wiring harness, or corroded connector at the pin interface | Replace the speed sensor and verify voltage at the pin connector |
| CA111 | Internal engine controller fault | Malfunction within the Electronic Control Module (ECM) | Replace or reprogram the ECM |
| CA441 | Battery voltage too low | Weak battery, failing alternator, or loose connections | Replace the battery or alternator and check the voltage regulator |
| CA442 | Battery voltage too high | Faulty voltage regulator or alternator overcharging | Replace the alternator or battery and check the voltage regulator |
| CA122 | Intake air pressure sensor feedback voltage too high | Sensor malfunction or wiring issue in the intake pressure circuit | Verify the intake pressure sensor and wiring integrity |
| CA123 | Intake air pressure sensor feedback voltage too low | Sensor short circuit or airflow restriction | Check for a sensor short or an airflow restriction |
| CA153 | Intake air temperature sensor feedback voltage too high | Faulty Intake Air Temperature (IAT) sensor | Replace or test the IAT sensor |
| CA154 | Intake air temperature sensor feedback voltage too low | Faulty Intake Air Temperature (IAT) sensor | Replace or test the IAT sensor |
| CA234 | Engine overspeed | Throttle calibration error, engine load cycle issue, or operator misuse | Verify throttle calibration and engine load cycle |
| CA451 | Common rail pressure sensor feedback value too high | Malfunction in the rail pressure sensor or actual overpressure condition | Diagnose the fuel rail pressure sensor or pump lines |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
WB140PS-2(S/N 140F50001-Up) attachments & work tools
Loader Bucket
Standard loader bucket capacity is 1.25 cubic yards (0.96 cubic meters). The bucket is mounted to the front linkage for loading and material handling tasks.
Backhoe Bucket
The rear backhoe assembly includes a digging bucket. Listings indicate a standard 24-inch (610 mm) width option is available for this model class.
Coupler System
The machine utilizes a standard quick-attach coupler system for the front loader bucket. Specific coupler part numbers are not documented for this exact serial range in the provided sources.
Hydraulic Configuration
The WB140PS-2 (140F50001-Up) is equipped with a closed center load sensing hydraulic system. Tools requiring auxiliary hydraulics must interface with this system, which supports the loader and backhoe functions.
Engine Specification
The WB140PS-2 (140F50001-Up) uses the Komatsu S4D1061FH 4-cylinder diesel engine with a rated output of 86 HP. This differs from the WB140-2N variant which uses the S4D106-2XFH engine.
Transmission Type
The machine features a synchro/power shuttle drivetrain. The PS designation indicates an electronically-controlled, four-wheel-drive, full powershift transmission with twist grip or EGMTM gear controls.
Guarding/Protection
Factory configurations may include operator cab guards or ROPS/FOPS structures. Specific guarding options for the WB140PS-2 (140F50001-Up) are not detailed in the provided sources; verify with the dealer.
All WB140PS-2(S/N 140F50001-Up) assemblies by section
Every catalogued assembly group for the Komatsu WB140PS-2(S/N 140F50001-Up). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Control System
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Control System : Backhoe Control Levers
| 31***04 | Spacer | 8 |
| 31***12 | Connection L.H | 1 |
| 31***13 | Connection R.H | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Control System : Backhoe Control Levers - Komatsu Layout Control (1/2)
| 31***04 | Spacer | 4 |
| 31***13 | Connection R.H | 1 |
| 31***13 | Lever | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Control System : Backhoe Control Levers - Komatsu Layout Control (2/2)
| 31***04 | Spacer | 4 |
| 31***12 | Connection L.H | 1 |
| 31***13 | Lever | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Control System : Backhoe Control Pedal (Left Side)
| 31***62 | Bushing, Pedal | 1 |
| 31***63 | Pedal Support | 1 |
| 31***21 | Pedal | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Control System : Backhoe Control Pedal (Left Side) Komatsu Layout Control
| 31***62 | Bushing, Pedal | 1 |
| 31***63 | Pedal Support | 1 |
| 31***21 | Pedal | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Control System : Backhoe Control Pedal (Right Side)
| 31***61 | Bushing, Pedal | 1 |
| 31***63 | Pedal Support | 1 |
| 31***20 | Pedal | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Control System : Backhoe Control Pedal (Right Side) - Komatsu Layout Control
| 31***61 | Bushing, Pedal | 1 |
| 31***20 | Pedal | 1 |
| 31***56 | Pedal Support | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Control System : Braking Control Pedal
| 31***72 | Brake Pedal L.H | 1 |
| 31***73 | Brake Pedal R.H | 1 |
| 31***74 | Pin Drag Pedals | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Control System : Fuel Control Lever
| 31***48 | Command Boot | 1 |
| 31***67 | Lever Block | 1 |
| 31***81 | Assembly, Cable | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Control System : Fuel Control Pedal
| 31***81 | Support | 1 |
| 31***58 | Lever For Cable | 1 |
| 31***70 | Accelerator Pedal | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Control System : Outrigger Control Lever
| 31***48 | Command Boot | 2 |
| 31***57 | Clamping Plate, R.H | 1 |
| 31***58 | Clamping Plate, L.H | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Control System : Shovel Control Lever
| 31***04 | Spacer | 4 |
| 31***58 | Pressure -Boot | 1 |
| 31***66 | Knob | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Control System : Shovel Control Lever (Bucket 4 In 1)
| 31***04 | Spacer | 4 |
| 31***58 | Pressure -Boot | 1 |
| 31***66 | Knob | 1 |
Engine
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine : Camshaft & Driving Gear
| YM***50 | Bearing, Thrust | 1 |
| YM***00 | Gear,Injection Pump Drive | 1 |
| YM***00 | Gear | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine : Cooling Water System
| YM***10 | Protector | 1 |
| YM***02 | Screw | 4 |
| YM***50 | Pulley | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine : Crankshaft & Piston
| YM***00 | Connecting Rod, Assembly | 4 |
| YM***00 | Assembly, Piston (+0.25 mm) | 8 |
| YM***80 | Gear, Ring | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine : Cylinder Bolck
| YM***00 | Screw | 18 |
| YM***20 | Screw | 10 |
| YM***40 | Bearing, Thrust (+0.25 mm) | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine : Cylinder Head
| 87***40 | Turbo Engine | 1 |
| YM***70 | Cap Valve | 8 |
| YM***02 | Bolt | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine : Engine Stop Device
| YM***00 | Pin, Cotter | 2 |
| YM***02 | Nut | 1 |
| YM***20 | Joint | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine : Exhaust Manifold And Muffler
| YM***80 | Packing | 1 |
| YM***02 | Screw | 2 |
| YM***22 | Stud | 4 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine : Feed Pump
| YM***40 | Gasket | 4 |
| YM***60 | O-Ring | 2 |
| YM***00 | Screw | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine : Flywheel Housing & Oil Sump
| YM***02 | Screw | 26 |
| YM***20 | Oil Sump | 1 |
| YM***80 | Parallel Pin | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine : Fuel Injection Pump (1/2)
| YM***00 | Segment | 4 |
| YM***00 | Gasket Disc | 4 |
| YM***20 | Valve,Delivery | 4 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine : Fuel Injection Pump (2/2)
| YM***40 | Gasket | 2 |
| YM***20 | Bearing,(Toyo) | 1 |
| YM***40 | Nut | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine : Fuel Injection Valve
| YM***00 | Nozzle | 4 |
| YM***02 | Bolt Plated | 1 |
| YM***20 | Spring | 4 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine : Fuel Line (1/2)
| YM***80 | Screw | 1 |
| YM***50 | Pipe, Assembly | 1 |
| YM***02 | Screw | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine : Fuel Line (2/2)
| YM***02 | Screw | 1 |
| YM***22 | Center Bolt | 1 |
| YM***00 | Banjo Bolt | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine : Gasket Kit
| YM***80 | Packing | 1 |
| YM***00 | O-Ring (Kit) | 1 |
| YM***40 | O-Ring,Drain Plug | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine : Gear Housing
| YM***02 | Bolt Plated | 11 |
| YM***51 | Cap, Lub. Oil Supply | 1 |
| YM***02 | Screw | 6 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine : Generator
| YM***20 | Timer,Solenoid | 1 |
| YM***40 | Distance Piece | 1 |
| YM***40 | Screw | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine : Generator 80a
| YM***10 | Pulley | 1 |
| YM***60 | Spool & Housing | 1 |
| YM***20 | Bolt Kit | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine : Governor (1/2)
| YM***40 | Screw | 1 |
| YM***00 | Screw | 1 |
| YM***10 | Screw | 6 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine : Governor (2/2)
| YM***40 | Screw | 1 |
| YM***00 | Nut | 1 |
| YM***40 | Shim, 0.300 mm | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine : Lubricatin Oil Line
| YM***60 | Pipe | 1 |
| YM***81 | Retainer | 1 |
| YM***50 | Oil Pressure Transmitter | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine : Lubricating Oil System
| YM***00 | O-Ring (Kit) | 1 |
| YM***30 | Shim, 1.000 mm | 1 |
| YM***00 | Plug | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine : Starting Motor
| YM***30 | Dust Cover Set | 1 |
| YM***71 | Brush Holder Ass'Y | 1 |
| YM***10 | Terminal Cover | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine : Suction Manifold
| YM***00 | Heather Air | 1 |
| YM***02 | Screw | 1 |
| YM***50 | Joint | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine : Turbocharger
| YM***02 | Nut | 4 |
| YM***90 | Packing | 1 |
| YM***20 | Turbine | 1 |
Engine Related Parts And Electrical System
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine Related Parts And Electrical System : Air Filter
| 31***17 | Hose (Turbo Engine) | 1 |
| 31***32 | Filter Support | 1 |
| 31***82 | Hose, Suction Air | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine Related Parts And Electrical System : Artic Version
| 88***28 | Battery | 1 |
| YM***66 | Connection | 1 |
| YM***65 | 30? C Heather Air | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine Related Parts And Electrical System : Battery Detachment
| 31***88 | Terminal (+), Assembly | 1 |
| 31***10 | Switch Support | 1 |
| 80***66 | Bolt | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine Related Parts And Electrical System : Electrical System (1/6)
| 31***07 | Cover | 1 |
| 31***57 | Support | 1 |
| 31***15 | Wiring Harness, Assembly | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine Related Parts And Electrical System : Electrical System (2/6)
| 31***67 | Gearbox Wiring Harness, Assembly | 1 |
| 31***68 | Wiring, Electro-Valve Line | 1 |
| 31***10 | Wiring Harness, Assembly | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine Related Parts And Electrical System : Electrical System (3/6)
| 31***70 | Battery Cover | 1 |
| 31***89 | Terminal(+), Assembly | 1 |
| 31***90 | Terminal (-), Assembly | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine Related Parts And Electrical System : Electrical System (4/6)
| 31***71 | Indicator Support | 2 |
| 31***00 | Acustic Alarm | 1 |
| 31***00 | Acustic Alarm Support | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine Related Parts And Electrical System : Electrical System (5/6)
| 80***44 | Bolt | 1 |
| 80***47 | Bolt | 1 |
| 80***43 | Screw | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine Related Parts And Electrical System : Electrical System (6/6)
| 31***69 | Wiring, Transmission Line | 1 |
| 80***39 | Screw | 2 |
| 80***01 | Self-Locking Screw | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine Related Parts And Electrical System : Engine And Drive Connection
| 20***08 | Union | 1 |
| 31***84 | Level Pipe | 1 |
| 31***85 | Dip Oil Stick | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine Related Parts And Electrical System : Engine Mounting Part
| 31***62 | Right Support | 1 |
| 31***63 | Left Support | 1 |
| 31***89 | Motor Support | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine Related Parts And Electrical System : Front Dashboard (1/2)
| 31***12 | Lower Cover | 1 |
| 31***13 | Upper Cover | 1 |
| 31***45 | Upper Cover | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine Related Parts And Electrical System : Front Dashboard (2/2)
| 31***84 | Front Dashboard, Assembly (Only For Cabin) | 1 |
| 31***00 | Front Instrument Board | 1 |
| 80***31 | Self-Tapping Screw | 4 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine Related Parts And Electrical System : Fuel Piping
| 80***88 | Bolt (With Stabilizers Only) | 2 |
| 80***08 | Bolt (Only With Cabin) | 4 |
| 80***01 | Spring Washer (With Stabilizers Only) | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine Related Parts And Electrical System : Fuel Tank
| 31***92 | Splash Guard | 1 |
| 31***55 | Level Indicator | 1 |
| 31***59 | Gas Oil Tank | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine Related Parts And Electrical System : Fuses Box
| 31***18 | Box, Assembly | 1 |
| 80***96 | Bolt | 2 |
| 80***33 | Screw | 5 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine Related Parts And Electrical System : Lateral Dashboard (1/2)
| 31***13 | Lateral Dashboard, Assembly (For Cabin) | 1 |
| 31***01 | Lateral Instrument Board | 1 |
| 80***31 | Self-Tapping Screw | 4 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine Related Parts And Electrical System : Lateral Dashboard (2/2)
| 31***54 | Switch | 1 |
| 31***56 | Switch | 1 |
| 85***72 | Bulb | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine Related Parts And Electrical System : Muffler
| 30***55 | Clamp (Aspirated Engine) | 3 |
| 31***53 | Hose | 1 |
| 31***55 | Stub Pipe | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine Related Parts And Electrical System : Prefilter (Optional)
| 31***19 | Gasket | 1 |
| 31***43 | Hood | 1 |
| 31***36 | Gasket | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine Related Parts And Electrical System : Radiator
| 31***91 | Radiator Support | 2 |
| 31***92 | Protection | 1 |
| 31***01 | Complete Radiator | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine Related Parts And Electrical System : Radiator Tank
| 31***69 | Chamber | 1 |
| 31***94 | Upper Support | 1 |
| 31***83 | Hose | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Engine Related Parts And Electrical System : Self Supply Pump (Optional)
| 30***41 | Pipe | 1 |
| 31***90 | Closure | 1 |
| 31***49 | Pin | 1 |
Frame
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Axle Lubricating Piping
| 39***45 | Tube | 1 |
| 50***15 | Union | 1 |
| 50***52 | Union | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Frame
| 31***55 | Frame Horizontal Outrigger | 1 |
| 31***01 | Plate | 2 |
| 31***06 | Plate Fixing | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Front Axle (4wd) (1/6)
| 20***28 | Front Axle, Assembly | 1 |
| CA***10 | Bushing | 1 |
| CA***35 | Bush | 4 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Front Axle (4wd) (2/6)
| CA***10 | Greaser Nipple | 2 |
| CA***95 | Jack | 1 |
| CA***11 | Fitting | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Front Axle (4wd) (3/6)
| CA***70 | Shim, 3.000 mm | 0 |
| CA***68 | Shim, 2.800 mm | 0 |
| CA***50 | Bearing | 0 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Front Axle (4wd) (4/6)
| CA***09 | Bearing | 2 |
| CA***78 | Locking Plate | 2 |
| CA***61 | Differential Kit | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Front Axle (4wd) (5/6)
| CA***60 | Fork | 1 |
| CA***61 | Double Joint | 2 |
| CA***25 | Spider | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Front Axle (4wd) (6/6)
| CA***90 | Centering Bush | 16 |
| CA***70 | Bearing | 4 |
| CA***40 | Pin | 4 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Front Propeller Shaft And Front Axle Fixing
| 31***55 | Shaft | 1 |
| 31***67 | Protection | 1 |
| 31***00 | Front Support | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Handbrake And Rear Propeller Shaft
| 31***54 | Shaft | 1 |
| 31***75 | Assembly, Cable | 1 |
| 31***32 | Fasterner Cable | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Hydraulic Piping (Brake Line)
| 31***01 | Union | 2 |
| 31***52 | Tubo | 1 |
| 31***53 | Tube | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Hydraulic Piping (Rear Axle Locking Control)
| 39***13 | Hose L=1150 | 1 |
| 39***22 | Hose L=800 | 1 |
| 39***51 | Hose | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Hydraulic Piping (Transmission Cooling Line)
| 39***03 | Hose | 1 |
| 39***04 | Hose | 1 |
| 50***87 | Union | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Rear Axle (1/7)
| 20***27 | Rear Axle, Assembly | 1 |
| CA***11 | Oil Seal | 2 |
| CA***66 | Bolt | 22 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Rear Axle (2/7)
| CA***91 | Shim 3.00 mm | 0 |
| CA***93 | Shim 3.20 mm | 0 |
| CA***51 | Bearing | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Rear Axle (3/7)
| CA***77 | Ring | 1 |
| CA***67 | Bearing | 2 |
| CA***69 | Pin | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Rear Axle (4/7)
| CA***41 | Shaft | 1 |
| CA***21 | O-Ring | 2 |
| CA***20 | Plug | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Rear Axle (5/7)
| CA***58 | O-Ring | 2 |
| CA***33 | Reaction Plate | 2 |
| CA***87 | Flange | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Rear Axle (6/7)
| CA***63 | Brakes Shaft | 2 |
| CA***61 | Bush | 2 |
| CA***52 | Spring | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Rear Axle (7/7)
| CA***90 | Centering Bush | 16 |
| CA***77 | Snap Ring | 2 |
| CA***99 | Coupling Bushing | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Transmission (1/13)
| 20***65 | Drive Shaft, Assembly | 1 |
| CA***22 | Plug | 3 |
| CA***60 | Copper Washer | 3 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Transmission (10/13)
| CA***75 | Bolt | 2 |
| CA***84 | Split Pin | 2 |
| CA***37 | Spring | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Transmission (11/13)
| CA***71 | Flange | 1 |
| CA***69 | Flywheel Towing Plate | 1 |
| CA***50 | Spring Washer | 6 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Transmission (12/13)
| CA***54 | Harness System | 1 |
| CA***63 | Electrovalve | 2 |
| CA***52 | Distributor | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Transmission (13/13)
| CA***87 | Sensor Gasket | 1 |
| CA***81 | Washer | 2 |
| CA***87 | Copper Washer | 6 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Transmission (2/13)
| CA***86 | Thrust Washer | 2 |
| CA***92 | Gear | 1 |
| CA***24 | Clutch Drive Plate | 14 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Transmission (3/13)
| CA***29 | Bearing | 1 |
| CA***58 | Gear | 1 |
| CA***87 | Flange | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Transmission (4/13)
| CA***86 | Thrust Washer | 1 |
| CA***90 | Snap Ring | 1 |
| CA***20 | Shim 0,1 mm | 0 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Transmission (5/13)
| CA***22 | Seal Ring | 2 |
| CA***58 | Oil Plug | 1 |
| CA***96 | Spring | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Transmission (6/13)
| CA***22 | Seal Ring | 3 |
| CA***89 | Phonic Wheel | 1 |
| CA***20 | Shim 0,1 mm | 0 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Transmission (7/13)
| CA***17 | Belleville Washer | 1 |
| CA***47 | Lock-Spring Cover | 1 |
| CA***90 | Bearing | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Transmission (8/13)
| CA***99 | Belleville Washer | 6 |
| CA***31 | O-Ring | 1 |
| CA***09 | Bearing | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Transmission (9/13)
| CA***95 | Spacer | 1 |
| CA***13 | Clutch Drive Plate | 10 |
| CA***90 | Bearing | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Wheels
| 31***60 | Rear Rim | 2 |
| 31***61 | Front Rim | 2 |
| 81***25 | Tyre (14x17,5 10pr) | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Frame : Wheels (Optional)
| 31***50 | Front Rim | 2 |
| 81***06 | Tyre, Front (12.5/80-18 10pr) | 2 |
| 84***01 | Tyre (365/70 R18 Tl Spt9) | 2 |
Guard And Operator'S Cab
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Guard And Operator'S Cab : Additional Kit For Air Blending System
| 31***15 | Support | 4 |
| 31***16 | Condenser Support | 1 |
| 31***29 | Gasket | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Guard And Operator'S Cab : Cabin (9/11)
| 80***30 | Boltw | 1 |
| 80***32 | Self Taping Screw | 8 |
| 80***56 | Self Taping Screw | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Guard And Operator'S Cab : Cabin (1/11)
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Guard And Operator'S Cab : Cabin (10/11)
| 80***67 | Bolt (Optional) | 4 |
| 80***56 | Bolt | 4 |
| 80***60 | Screw | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Guard And Operator'S Cab : Cabin (11/11)
| 80***25 | Screw | 4 |
| 80***60 | Screw | 8 |
| 80***06 | Washer, Spring | 4 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Guard And Operator'S Cab : Cabin (2/11)
| 80***86 | Washer | 4 |
| 80***00 | Screw (Only For Germany) | 4 |
| 80***56 | Screw | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Guard And Operator'S Cab : Cabin (3/11)
| 80***70 | Bolt | 4 |
| 80***45 | Screw | 2 |
| 80***08 | Nut (With Stabilizers Only) | 4 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Guard And Operator'S Cab : Cabin (4/11)
| 31***41 | Cylinder | 3 |
| 31***42 | Spring | 6 |
| 31***43 | Pin | 6 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Guard And Operator'S Cab : Cabin (5/11)
| 80***48 | Bolt | 4 |
| 80***64 | Screw | 5 |
| 80***66 | Self Taping Screw | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Guard And Operator'S Cab : Cabin (6/11)
| 31***42 | Tie-Rod R.H. (2nd Version) | 1 |
| 31***43 | Tie-Rod L.H. (2nd Version) | 1 |
| 31***44 | Spring R.H. (2nd Version) | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Guard And Operator'S Cab : Cabin (7/11)
| 80***64 | Screw | 2 |
| 80***40 | Self-Tapping Screw | 2 |
| 80***06 | Spring Washer | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Guard And Operator'S Cab : Cabin (8/11)
| 31***03 | Canopy | 1 |
| 31***50 | Gasket | 7 |
| 31***94 | Front Gasket | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Guard And Operator'S Cab : Cabin Air Blending System (1/2)
| 31***03 | Cock Support | 1 |
| 31***72 | Battery | 1 |
| 31***74 | Valve | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Guard And Operator'S Cab : Cabin Air Blending System (2/2)
| 31***80 | Wall | 1 |
| 31***84 | Switch Wiring | 1 |
| 31***02 | Hose | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Guard And Operator'S Cab : Covers (1/3)
| 31***54 | Hinge Linkage | 1 |
| 31***84 | Inspection Plug | 1 |
| 31***13 | Hood (Cabin) | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Guard And Operator'S Cab : Covers (2/3)
| 31***00 | Front Closure | 1 |
| 31***26 | Support | 1 |
| 31***32 | Squab Panel | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Guard And Operator'S Cab : Covers (3/3)
| 31***01 | Right Splash-Board (Cabin) | 1 |
| 31***02 | Left Splash-Board (Cabin) | 1 |
| 31***20 | Right Closure (Cabin) | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Guard And Operator'S Cab : Dashboard, Floor Mat
| 31***67 | Floor Board | 1 |
| 31***90 | Lateral Dashboard | 1 |
| 31***05 | Front Dashboard | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Guard And Operator'S Cab : Front Splash-Board (Optional)
| 31***55 | R.H. Splash-Board Support | 1 |
| 31***56 | L.H. Splash-Board Support | 1 |
| 31***19 | R.H. Splash-Board | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Guard And Operator'S Cab : Heating System (1/2)
| 31***80 | Wall | 1 |
| 31***03 | Cock Support | 1 |
| 80***45 | Screw | 4 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Guard And Operator'S Cab : Heating System (2/2)
| 31***68 | Control Cable | 1 |
| 31***19 | Hose Protection | 1 |
| 31***02 | Adhesive Plate | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Guard And Operator'S Cab : Motor Air Blending System (1/2)
| 31***97 | Fan Protection | 1 |
| 31***54 | Condenser | 1 |
| 31***55 | Upper Support | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Guard And Operator'S Cab : Motor Air Blending System (2/2)
| 31***09 | Gasket | 1 |
| 31***51 | Compressor | 1 |
| 31***57 | Filter | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Guard And Operator'S Cab : Operator'S Seat
| 81***79 | Back Foam | 1 |
| 81***81 | Seat Foam | 1 |
| 81***86 | Damper Assembly Kit | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Guard And Operator'S Cab : Operator'S Seat Support
| 31***64 | Box | 1 |
| 31***66 | Box | 1 |
| 31***89 | Operator'S Seat, Assembly | 1 |
Hydraulic System Work Equipment
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Adjustable Guide
| 31***07 | Pin | 1 |
| 31***50 | Support | 1 |
| 31***51 | Stud Bolt Steering | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Backhoe Control Valve (1/8)
| 84***41 | Control Valve,Assembly | 1 |
| 84***71 | Block, Outrigger Control Assembly | 2 |
| 84***75 | Tie Rods Kit | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Backhoe Control Valve (2/8)
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Backhoe Control Valve (3/8)
| 84***74 | Gasket Kit, Secondary Valve | 2 |
| 84***13 | Gasket Kit | 1 |
| 84***16 | Valve Kit | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Backhoe Control Valve (4/8)
| 84***74 | Gasket Kit, Secondary Valve | 2 |
| 84***13 | Gasket Kit | 1 |
| 84***16 | Valve Kit | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Backhoe Control Valve (5/8)
| 84***13 | Gasket Kit | 1 |
| 84***16 | Valve Kit | 2 |
| 84***17 | Operating Kit | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Backhoe Control Valve (6/8)
| 84***74 | Gasket Kit, Secondary Valve | 2 |
| 84***13 | Gasket Kit | 1 |
| 84***16 | Valve Kit | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Backhoe Control Valve (7/8)
| 84***74 | Gasket Kit, Secondary Valve | 2 |
| 84***13 | Gasket Kit | 1 |
| 84***16 | Valve Kit | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Backhoe Control Valve (8 Sections) (Hammer + Jig Arm)
| 84***47 | Control Valve,Assembly | 1 |
| 84***71 | Block, Outrigger Control Assembly | 2 |
| 84***81 | Block, Jig Arm Control, Assembly | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Backhoe Control Valve (8/8)
| 84***11 | Big Plug | 1 |
| 84***16 | Outlet Housing | 1 |
| (8***4) | Outlet Element Assembly | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Backhoe Control Valve (Hammer)
| 84***74 | Gasket Kit, Secondary Valve | 2 |
| 84***13 | Gasket Kit | 1 |
| 84***16 | Valve Kit | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Backhoe Control Valve (Jig Arm)
| 84***74 | Gasket Kit, Secondary Valve | 2 |
| 84***13 | Gasket Kit | 1 |
| 84***16 | Valve Kit | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Bucket Hydraulic Piping (Fast Coupling Line) (Optional)
| 20***51 | Coupling, Assembly. (For Hand Hammer) | 1 |
| 20***52 | Fitting (For Hand Hammer) | 1 |
| 20***53 | Body (For Hand Hammer) | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Bucket Hydraulic Piping (Mechanical Fast Coupling Line 4 In 1) (Option
| 20***51 | Coupling, Assembly. (For Hand Hammer) | 2 |
| 20***52 | Fitting (For Hand Hammer) | 1 |
| 20***53 | Body (For Hand Hammer) | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Control Valve (7 Section) (For Jig Arm)
| 84***42 | Control Valve,Assembly | 1 |
| 84***71 | Block, Outrigger Control Assembly | 2 |
| 84***81 | Block, Jig Arm Control, Assembly | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Control Valve (7 Sections) (For Hammer)
| 84***48 | Control Valve, Assembly | 1 |
| 84***71 | Block, Outrigger Control Assembly | 2 |
| 84***82 | Tie Rods Kit | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Floor Board Hydraulic Tank
| 31***19 | Splash Guard | 1 |
| 31***76 | Hinge | 1 |
| 31***61 | Floor Board | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hammer Hydraulic Piping With Jig Arm (1/2)
| 31***21 | Bushing | 2 |
| 39***02 | Hose | 1 |
| 39***02 | Hose | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hammer Hydraulic Piping With Jig Arm (2/2)
| 31***50 | Pipe | 1 |
| 31***51 | Pipe | 1 |
| 31***05 | U-Bolt | 6 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Horizontal Outrigger Cylinder L.H.
| 39***01 | Brake Pin | 1 |
| 39***08 | Jack Assembly, L.H | 1 |
| 39***14 | Cylinder | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Horizontal Outrigger Cylinder R.H.
| 39***01 | Brake Pin | 1 |
| 39***07 | Jack Assembly, R.H | 1 |
| 39***13 | Cylinder | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Arm Cylinder Line)
| 31***17 | Pin | 1 |
| 31***21 | Bushing | 2 |
| 39***67 | Pin | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Arm Cylinder Line) (Safety Valve)
| 31***65 | Pipe | 1 |
| 31***71 | Union | 1 |
| 31***72 | Pipe | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Boom Cylinder Line)
| 31***11 | Pin | 1 |
| 31***41 | Buckle | 2 |
| 31***42 | Plate | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Boom Cylinder Line) (Safety Valve)
| 31***60 | Pipe | 1 |
| 31***61 | Pipe | 1 |
| 31***62 | Pipe, R.H | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Boom Swing Cylinder Line)
| 31***00 | Support | 2 |
| 31***08 | Semibuckle | 4 |
| 39***62 | Pin | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Bucket - 4 In 1 Cylinder Line) (1/2)
| 31***26 | Protection | 2 |
| 31***52 | Pipe, R.H | 1 |
| 31***53 | Pipe, L.H | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Bucket - 4 In 1 Cylinder Line) (2/2)
| 31***78 | Pin | 2 |
| 31***79 | Pin | 2 |
| 31***52 | Bucket 4 In 1, Assembly | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Bucket Cylinder Line) (1/2)
| 31***21 | Bushing | 2 |
| 39***06 | Hose | 2 |
| 50***13 | Union | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Bucket Cylinder Line) (2/2)
| 31***58 | Plate | 1 |
| 31***05 | Hose-Clamp | 1 |
| 31***65 | Pipe | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Bucket Cylinder Line) (For Jig Arm)
| 31***55 | Pipe, R.H | 1 |
| 31***56 | Pipe, L.H | 1 |
| 31***57 | Pipe | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Delivery Line)
| 30***32 | Mini-Intake | 1 |
| 31***71 | Pipe | 1 |
| 39***13 | Hose | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Hammer Line) (1/3)
| 39***09 | Hose | 1 |
| 39***06 | Hose | 1 |
| 50***06 | Plug | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Hammer Line) (2/3)
| 31***54 | Extension | 1 |
| 31***21 | Bushing | 2 |
| 39***08 | Hose | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Hammer Line) (3/3)
| 31***08 | Support, R.H | 1 |
| 31***09 | Support, L.H | 1 |
| 39***06 | Hose | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Jig Arm Cylinder Line)
| 31***21 | Bushing | 2 |
| 39***08 | Hose | 1 |
| 39***02 | Hose | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Oil Cooler And Return Line) (1/2)
| 31***70 | Support | 1 |
| 31***73 | Pipe | 1 |
| 31***14 | Union | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Oil Cooler And Return Line) (2/2)
| 31***17 | Union | 1 |
| 31***21 | Protection | 1 |
| 31***29 | Hose Protection | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Outrigger Cylinder Line)
| 20***70 | Buckle | 2 |
| 31***29 | Hose Protection | 2 |
| 31***93 | Pipe L.H | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Outrigger Cylinder Line) (Safety Valves)
| 30***31 | Union | 4 |
| 30***74 | Union | 2 |
| 31***73 | Pipe | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Ride Control) (1/2) (Optional)
| 31***00 | Union | 1 |
| 31***01 | Support | 1 |
| 31***02 | Support | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Ride Control) (2/2) (Optional)
| 39***47 | Union | 1 |
| 39***19 | Hose | 1 |
| 39***25 | Hose | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Ride Control) (With Hammer) (2/2) (Optional)
| 39***19 | Hose | 1 |
| 39***25 | Hose | 1 |
| 39***36 | Hose | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Shovel Lifting Cylinder Line) (1/2)
| 31***57 | Pipe | 1 |
| 31***58 | Pipe | 1 |
| 31***63 | Support | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Shovel Lifting Cylinder Line) (2/2)
| 20***70 | Buckle | 2 |
| 31***65 | Pin ? 50 | 2 |
| 31***13 | Pin ? 45 | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Shovel Lifting Cylinder) (Electric Safety Valve)
| 20***70 | Buckle | 4 |
| 31***00 | Fastener | 2 |
| 31***01 | Plate | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Shovel Lifting Cylinder) (Safety Valve)
| 31***50 | Valve Support | 2 |
| 31***57 | Lifting Pipe, R.H | 1 |
| 31***58 | Lifting Pipe, L.H | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Shovel Tipping Cylinder Line) (1/2)
| 31***59 | Pipe | 1 |
| 31***60 | Pipe | 1 |
| 31***64 | Buckle | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Shovel Tipping Cylinder Line) (2/2)
| 31***05 | Hose-Clamp | 1 |
| 31***07 | Gasket | 1 |
| 31***65 | Pin ? 50 | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Shovel Tipping Cylinder) (Electric Saety Valve)
| 31***00 | Fastener | 2 |
| 31***01 | Plate | 2 |
| 31***75 | Pipe | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Shovel Tipping Cylinder) (Saety Valve)
| 31***50 | Valve Support | 2 |
| 31***61 | Tipping Pipe, R.H | 1 |
| 31***62 | Tipping Pipe, L.H | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Steering Line) (1/2)
| 30***32 | Mini-Intake | 1 |
| 30***38 | Retainer | 2 |
| 31***50 | Stud Bolt Steering | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Steering Line) (2/2)
| 39***01 | Hose | 1 |
| 39***01 | Hose | 2 |
| 50***05 | Union | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Suction)
| 20***70 | Plug (Only For Disconnecting Hammer) | 1 |
| 31***50 | Suction Flange | 1 |
| 31***53 | Tubo | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Pump (1/2)
| 84***02 | Pump Assembly | 1 |
| 84***22 | Gruppo Rotante | 1 |
| 84***23 | Unita' Di Controllo | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Pump (2/2)
| 84***17 | Pilot Valve | 1 |
| 84***18 | Pilot Valve | 1 |
| 84***19 | Valve Plate | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Hydraulic Tank
| 20***40 | Indicator Oil Level | 1 |
| 20***60 | Breather Plug | 1 |
| 31***48 | Breather Oil Container | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Shovel Control Assy (2/4)
| 84***08 | Spool Return Unit | 1 |
| 84***09 | Plug | 1 |
| 84***10 | Shuttle Valve Kit | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Shovel Control Valve (1/4)
| 84***39 | Shovel Control Valve, Assembly | 1 |
| 84***11 | Big Plug | 1 |
| 84***63 | Floating Block, Shovel Lifting, Assembly | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Shovel Control Valve (3/4) (Whit Return To Dig)
| 84***13 | Gasket Kit | 1 |
| 84***16 | Valve Kit | 2 |
| 84***17 | Operating Kit | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Shovel Control Valve (4/4) (Floating Lifting Element)
| 84***74 | Gasket Kit, Secondary Valve | 2 |
| 84***13 | Gasket Kit | 1 |
| 84***16 | Valve Kit | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Shovel Control Valve (Floating Element) (For Bucket 4 In 1) (3/5)
| 84***13 | Gasket Kit | 1 |
| 84***16 | Valve Kit | 2 |
| 84***17 | Operating Kit | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Shovel Control Valve (For Bucket 4 In 1) (1/5)
| 84***67 | Shovel Control Valve,Assembly | 1 |
| 84***11 | Big Plug | 1 |
| 84***63 | Floating Block, Shovel Lifting, Assembly | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Shovel Control Valve (For Bucket 4 In 1) (2/5)
| 84***04 | Piston Kit | 1 |
| 84***08 | Spool Return Unit | 1 |
| 84***09 | Plug | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Shovel Control Valve (For Bucket 4 In 1) (5/5)
| 84***74 | Gasket Kit, Secondary Valve | 2 |
| 84***13 | Gasket Kit | 1 |
| 84***16 | Valve Kit | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Hydraulic System Work Equipment : Shovel Control Valve (With Return To Dig) (For Bucket 4 In 1) (4/5)
| 84***74 | Gasket Kit, Secondary Valve | 2 |
| 84***13 | Gasket Kit | 1 |
| 84***16 | Valve Kit | 2 |
Mark Plate
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Mark Plate : Equipment
| 31***51 | Fastener | 1 |
| 31***26 | Pin | 1 |
| 31***50 | Protection | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Mark Plate : Stickers - Warning Plate (1/4)
| 30***91 | Mark Plate, California Battery | 1 |
| 31***13 | Plate, Hydraulic Transmission Scheme | 1 |
| 31***35 | Plate, Multifunctional Control | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Mark Plate : Stickers - Warning Plate (2/4)
| 81***23 | Kit, Basic Sticker | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Mark Plate : Stickers - Warning Plate (3/4)
| 31***04 | Plate, ''Air Recycle'' | 1 |
| (8***3) | Kit, Basic Sticker | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Mark Plate : Stickers - Warning Plate (4/4)
| (8***3) | Kit, Basic Sticker | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Mark Plate : Tool (Optional)
| 82***43 | Filter Cartridge Wrench | 1 |
| 82***50 | Box Wrench (27 mm) | 1 |
| 82***52 | Box Wrench (32 mm) | 1 |
Work Equipment
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Arm And Bucket (Usa)
| 20***90 | Pin | 2 |
| 20***69 | Tie-Rod | 1 |
| 20***51 | Adapter (Welded) | 0 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Arm Cylinder
| 39***11 | Bushing | 1 |
| 39***13 | Cylinder | 1 |
| 39***11 | Rod | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Blade : Unit_02_of_02
| 31***50 | Blade | 1 |
| 80***99 | Bolt | 3 |
| 80***11 | Nut | 3 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Blade : Unit_01_of_02
| 31***50 | Blade | 1 |
| 80***13 | Bolt | 8 |
| 80***12 | Nut | 8 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Boom Cylinder
| 31***03 | Pipe Stopper | 1 |
| 39***07 | Plug | 1 |
| 39***14 | Bushing | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Boom Swing Cylinder
| 31***02 | Cylinder | 1 |
| 39***58 | Bushing | 1 |
| 39***09 | Boom Swing Cylinder Assembly., R.H | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Bracket And Boom (1/2)
| 31***53 | Support | 1 |
| 31***02 | Pin | 1 |
| 31***03 | Bushing | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Bracket And Boom (2/2)
| 31***55 | Support | 1 |
| 31***56 | Fastener | 1 |
| 31***57 | Cylinder | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Bucket 4 In 1
| 31***54 | Tooth | 8 |
| 31***77 | Pin | 2 |
| 31***26 | Protection | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Bucket 4 In 1 Cylinder
| 31***03 | Piston Rod | 1 |
| 31***04 | Cylinder | 1 |
| 31***74 | Bucket 4 In 1 Cylinder, Assembly | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Bucket 4 In 1 Fast Coupling
| 31***54 | Tooth | 8 |
| 31***77 | Pin | 2 |
| 31***63 | Bucket 4 In 1, Assembly | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Bucket Cylinder
| 39***11 | Cylinder | 1 |
| 39***12 | Shaft | 1 |
| 39***12 | Piston | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Fork (For Bucket 4 In 1)
| 31***50 | Rod | 2 |
| 31***51 | Fork | 2 |
| 31***09 | Pin | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Fork (For Bucket)
| 31***51 | Bucket | 1 |
| 31***53 | Bucket With Fork, Assembly | 1 |
| 31***51 | Fork | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Hammer M50 (1/2)
| 82***31 | M50 Hammer, Assembly | 1 |
| 82***33 | Chisel Point (Optional) | 1 |
| 82***38 | Flat Point (Optional) | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Hammer M50 (2/2)
| 82***54 | Fitting | 1 |
| 82***55 | Retainer | 2 |
| 82***56 | Pin | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Hammer M60 (1/2)
| 82***32 | M60 Hammer, Assembly | 1 |
| 82***34 | Chisel Point (Optional) | 1 |
| 82***45 | Flat Point (Optional) | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Hammer M60 (2/2)
| 82***54 | Fitting | 2 |
| 82***58 | Spring | 2 |
| 82***61 | Adjuster Shim | 10 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Horizontal Outrigger
| 31***59 | Bearing Boom | 4 |
| 31***52 | Foot | 2 |
| 39***56 | Pin | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Horizontal Outrigger (With Rubber)
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Horizontal Outrigger (With Rubber) (Optional)
| 31***59 | Bearing Boom | 2 |
| 31***55 | Foot | 2 |
| 31***56 | Rubberized Foot | 6 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Horizontal Outrigger Cylinder Protection
| 31***61 | Clamp | 2 |
| 31***62 | Protection | 2 |
| 31***29 | Plate | 4 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Jack (Quick Coupling For Bucket) (Optional)
| 20***19 | Cylinder | 1 |
| 50***13 | Piston | 2 |
| 50***14 | Piston Rod | 2 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Jig Arm
| 20***02 | Lever, R.H | 1 |
| 20***03 | Lever, L.H | 1 |
| 31***00 | Pin | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Jig Arm Cylinder : Unit_02_of_02
| 31***56 | Clamp | 1 |
| 31***53 | Pipe | 1 |
| 31***54 | Pipe | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Jig Arm Cylinder : Unit_01_of_02
| 20***08 | Piston Rod | 1 |
| 39***12 | Cylinder Head | 1 |
| 39***16 | Piston | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Quick Hydraulic Coupling For Bucket (Optional)
| 20***82 | Jack | 1 |
| 31***59 | Total | 1 |
| 31***47 | Closure | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Quick Hydraulic Coupling For Bucket 4 In 1 (Optional)
| 20***82 | Jack | 1 |
| 31***59 | Total | 1 |
| 31***47 | Closure | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Quick Mechanical Coupling For Bucket (Optional)
| 31***59 | Total | 1 |
| 31***60 | Bucket | 1 |
| 31***61 | Lever, Assembly | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Quick Mechanical Coupling For Bucket 4 In 1 (Optional)
| 31***59 | Total | 1 |
| 31***61 | Lever, Assembly | 1 |
| 31***67 | Clousure | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Safety Stay For Loader Arm End
| 31***09 | Pin | 4 |
| 31***51 | Safety Attachment | 1 |
| 80***83 | Bolt | 4 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Shovel Bucket And Arm (Usa)
| 02***16 | Nut | 15 |
| 02***55 | Bolt (Only For Bucket With Cutting Edge) | 15 |
| 12***51 | Cutting Edge (Only For Bucket With Cutting Edge) | 3 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Shovel Dumping Cylinder
| 39***13 | Bushing | 1 |
| 39***13 | Cylinder Head | 1 |
| 39***17 | Left Hydraulic Jack, Assembly | 1 |
Komatsu : Wb140ps-2(S/N 140f50001-Up) : Work Equipment : Shovel Lifting Cylinder
| 39***13 | Bushing | 1 |
| 39***11 | Cylinder Head | 1 |
| 39***14 | Hydraulic Jack, Assembly | 1 |
WB140PS-2(S/N 140F50001-Up) serial number reference
The PIN plate is located on the front frame, on the right-hand side of the articulation joint. The prefix is the first three characters of the serial number stamped on the plate (e.g., '140' in '140F50001').
| Prefix | Identifies | Notes |
|---|---|---|
| 140F | WB140PS-2 | Serial range 140F50001-Up. Validated against Komatsu WB140PS-2 parts catalog and service manual listings. Engine: Komatsu S4D1061FH 4-cylinder diesel, 86 HP. Years: Not documented for this exact serial range — verify with your dealer. |
Frequently asked questions
What engine does the Komatsu WB140PS-2 use?
The Komatsu WB140PS-2 uses the Komatsu S4D106-2XFH diesel engine.
What is the operating weight of the Komatsu WB140PS-2?
Operating weight varies by configuration/series.
What replaced the Komatsu WB140PS-2?
The WB140PS-2 is succeeded by later WB140 series updates.
What WB140PS-2(S/N 140F50001-Up) owners discuss
What engine does the WB140PS-2 (S/N 140F50001-Up) use, and what are its power characteristics?
The machine uses the Komatsu S4D106-2XFH diesel engine. It delivers 86 hp (64 kW) of net power. This engine is designed for dependable performance in digging, lifting, and loading applications while maintaining fuel efficiency. The power output is sufficient for the machine's class but requires proper cooling system maintenance to prevent thermal issues under heavy load. (Source: Komatsu Backhoe Loader WB140, WB142, WB146, WB150, WB156 Factory Service & Shop Manual; Komatsu WB140 Loader Backhoe Specs Parts; komatsu-backhoe-loaders-spec-the OEM part reference.pdf). Have your dealer verify the exact engine code for your specific serial number, as regional emissions packages can vary the configuration.
How does the transmission behave, and what are common hydraulic pressure issues?
The WB140PS-2 features an electronically-controlled, four-wheel-drive, full powershift transmission. It uses Twist Grip or EGMTM (Electronic Gear Management) controls for changing direction and gears at full power without disengaging the drive. A known issue in the WB140 series is transmission pressure anomalies. Operators have reported weak pulling power where torque converter pressure reads 40 PSI at idle and 130 PSI at full throttle. While the high side is in spec, the low side pressure may read higher than the manual's specified 8–10 PSI, indicating a potential control valve or pump issue. (Source: Komatsu WB140-2N transmission problem | published references; Komatsu Backhoe: Hydraulic Oil, Filters & Fluids | JustAnswer).
What are the typical undercarriage and wear patterns for this machine type?
As a four-wheel-drive backhoe loader, the WB140PS-2 experiences significant wear on the front axle and steering joints due to articulation and heavy loader duties. The rear undercarriage (wheels and tires) wears based on road travel, while the backhoe attachment points (boom, arm, bucket cylinders) are high-wear areas. Seal kits for the backhoe bucket cylinder are common replacement items. The closed-center load sensing hydraulic system requires clean fluid to prevent wear on the main pump and steering unit. (Source: Komatsu Backhoe Cylinder Seal Kits | Broken Tractor; Komatsu WB140-2N Loader Backhoe Specs & Dimensions; Oil and coolant capacity quick reference guide).
What are the common electrical or sensor issues reported by owners?
A frequent electrical fault involves the starter circuit. Owners report that the machine will not crank despite normal lights and a ticking lift pump. Jumping the starter solenoid often starts the engine, pointing to a faulty safety relay or starter relay. The schematic may label this part as a 'safety relay,' 'starter relay,' or 'Relay, Preheat,' causing confusion. The machine uses a common Panasonic relay on the control board for transmission controls; these soldered-in relays are known failure points and are often replaced in bulk by owners. (Source: Komatsu WB140-2N wont turn over | published references; Komatsu WB140-2 Backhoe: Parts Manual, Fuse Box...).
What engine quirks or thermal issues are associated with the S4D106 series in this model?
Operators have reported that after running the tractor for five or more hours, shutting it down, and returning after 30 minutes, the engine may barely turn over (crank slow). This is often attributed to the engine exceeding thermal equilibrium. When components expand beyond optimal tolerances due to heat, mild seizure or increased compression resistance can occur. Cooling this down restores normal tolerances. Causes include restricted radiators, incorrect coolant type, faulty thermostats, or air in the system. Coolant loss is also a common symptom to investigate for head gasket or leak issues. (Source: KOMATSU WB140 - TractorByNet; Komatsu WB140-2 Backhoe: Parts Manual, Fuse Box...).
What fluid specifications and capacities are critical for maintenance?
The machine requires specific fluids for optimal performance. Engine oil should be a high-quality diesel engine oil (e.g., Komatsu EO or equivalent). The hydraulic system uses closed-center load sensing hydraulic oil (e.g., Komatsu TO or equivalent). Axle oil and powertrain oil are also required. The coolant capacity is approximately 5.19 L (1.37 gal) for the WB140PS-2 series. Using the correct fluid grades is critical to prevent thermal issues and component wear.
What to check when buying a used WB140PS-2 (S/N 140F50001-Up)?
When inspecting a used WB140PS-2, verify the serial number plate location (right side of the frame below the cab or left side of the engine compartment) to confirm the S/N 140F50001-Up range. Check the engine for thermal history: look for signs of overheating, coolant leaks, or rough running after shutdown. Test the transmission by checking for clutch slip when starting in a high gear and verifying torque converter pressures. Inspect the starter relay and control board for the common Panasonic relay failures. Ensure the radiator core is clean and free of debris, as restricted cooling leads to premature engine wear. Verify the condition of the backhoe cylinder seals and hydraulic hoses. (Source: Komatsu WB140 Loader Backhoe Specs Parts; Komatsu WB140-2 Backhoe: Parts Manual, Fuse Box...; KOMATSU WB140 - TractorByNet; Komatsu WB140-2N transmission problem | published references; Find the Correct Komatsu Service Manual | Serial Number Guide – Manuals Kart).
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
Serial-range & configuration variants
This page covers the Komatsu WB140PS-2(S/N 140F50001-Up). Related factory variants of the same model family:
WB140PS-2(S/N 140F50098-Up)WB140PS-2(S/N 140F50092-Up)
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