Komatsuwheel loadermedium (wa140 - wa380)
Komatsu WB140PS-2(S/N 140F50092-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, municipal, and general construction work. It is powered by the Komatsu S4D106-2XFH diesel engine, delivering approximately 86 hp. Operating weight ranges from 13,200 to 14,500 lb (5,990 to 6,580 kg) depending on the attachment package and counterweight configuration. Production years span the late 1990s through the early 2000s. It succeeded the WB140-2 and WB140-2N models and was later replaced by the WB140-5 series. Configurations offered include standard and extended backhoe booms, 4WD, and various loader bucket sizes.
The WB140PS-2 introduced a full powershift transmission with electronic gear management (EGMTM), distinguishing it from earlier manual-shift WB140-2 variants. This generation matters in the used market due to its robust S4D106 engine, which is known for durability and ease of overhaul. The PS-2's powershift drivetrain reduces operator fatigue and increases cycle efficiency in tight urban jobsites. Parts availability remains strong because the S4D106 engine and hydraulic components share platforms with other Komatsu utility machines, keeping maintenance costs lower than many competitors.
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 140F50092-Up) specifications
Engine
| Model | Komatsu S4D106-2XFH |
| Gross Power | 86 HP |
| Cylinders | 4 |
| Emissions Tier | Not documented for this exact serial range — verify with your dealer |
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)
| Engine Oil | 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 |
| Cooling System | 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 140F50092-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 140F50092-Up) beyond the schedule
Predictive Maintenance & Fluid Analysis
Monitor Komatsu KOWA oil analysis results for the S4D106-2XFH engine to detect early wear in cylinder liners and bearings. Check hydraulic oil for water contamination in the front and rear axle housings, as seal failure is common in high-humidity environments. Inspect the transmission oil for metal particles indicating clutch wear. Use Komatsu EO or TO hydraulic oil to maintain viscosity in the closed-center load-sensing system. Track coolant pH levels to prevent corrosion in the aluminum heat exchanger cores.
Corrective & Common Repairs
Address slow cranking by testing the starter solenoid and battery cables, as voltage drop is frequent in WB140PS-2 electrical systems. Replace worn clutch plates in the powershift transmission if gear engagement is delayed or slipping occurs. Repair hydraulic leaks at the boom cylinder rod seals, which degrade under abrasive dust. Check the EGMTM gear control module for fault codes if shift patterns become erratic. Replace the fuel water separator element to prevent injector clogging from diesel contamination.
Overhaul & Rebuild Points
Rebuild the S4D106-2XFH engine at 10,000 hours or when compression drops below specification. Inspect turbocharger shaft play and replace if excessive vibration occurs. Overhaul the hydraulic pump if flow rates fall below factory specs during pressure testing. Replace swing bearing bolts and inspect the bearing race for pitting or spalling. Rebuild the final drives if differential noise indicates gear wear. Check the steering unit for internal leakage that causes drift or slow response.
Seasonal & Environment Servicing
In cold climates, use Komatsu Super-coolant AF-NAC rated for the local minimum temperature to prevent block cracking. Check the battery hold-down clamp for corrosion and ensure terminals are tight. In dusty environments, clean the radiator and oil cooler fins daily to prevent overheating. Inspect the air filter restriction indicator frequently and replace the element when the red pin appears. Lubricate the swing bearing and boom pivot pins more often in wet or muddy conditions to wash out abrasive grit.
WB140PS-2(S/N 140F50092-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 140F50092-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 sensor pin | 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 |
| 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 check pump lines |
| CA122 | Intake air pressure sensor feedback voltage too high | Sensor malfunction or wiring issue | Verify the intake pressure sensor and wiring |
| CA123 | Intake air pressure sensor feedback voltage too low | Sensor short or airflow restriction | Check for a sensor short or an airflow restriction |
| CA441 | Battery voltage too low | Weak battery or charging system issue | Replace the battery or alternator; check the voltage regulator |
| CA442 | Battery voltage too high | Faulty voltage regulator or alternator overcharging | Replace the alternator or battery; check the voltage regulator |
| CA234 | Engine overspeed | Throttle calibration error, engine load cycle issue, or operator misuse | Verify throttle calibration, engine load cycle, or operator misuse |
| AA10NX | Air cleaner clogging | Dirty or blocked air filter element | Replace the air filter |
| B@BCNS | Engine coolant overheating | Low coolant level, blocked radiator fins, or fan belt failure | Check radiator fins, fan belt, and coolant level |
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 140F50092-Up) attachments & work tools
Loader Bucket
Standard loader bucket capacity is 1.25 cubic yards (0.96 cubic meters). This attachment is the primary front-end work tool for the WB140PS-2 series.
Backhoe Bucket
The machine is equipped with a standard backhoe bucket, typically 24 inches (610 mm) wide. The WB140PS-2N variant is noted for having an extended backhoe arm option.
Coupler System
The WB140PS-2 utilizes a standard quick-attach coupler system for the front loader bucket. Specific coupler part numbers are not documented in the provided sources; verify with your dealer for the exact mounting interface.
Hydraulic Configuration
The machine uses a closed-center load-sensing hydraulic system. Tools requiring auxiliary hydraulics must be compatible with this system. Hydraulic kit specifications vary by configuration/series.
Engine Specification
The WB140PS-2 (S/N 140F50092-Up) is powered by the Komatsu S4D1061FH 4-cylinder diesel engine, rated at 86 HP. This engine provides the power for loader and backhoe operations.
Transmission Type
The WB140PS-2 features an electronically-controlled, four-wheel-drive, full powershift transmission. Gear controls include Twist Grip or EGMTM (Electronic Gear Management) options.
Guarding Options
Factory guarding options such as brush guards and ROPS/FOPS cabs are available for the WB140PS-2 series. Specific guarding configurations vary by configuration/series.
All WB140PS-2(S/N 140F50092-Up) assemblies by section
Every catalogued assembly group for the Komatsu WB140PS-2(S/N 140F50092-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 140f50092-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 140f50092-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 140f50092-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 140f50092-Up) : Control System : Backhoe Control Pedal (Left Side)
| 31***63 | Pedal Support | 1 |
| 31***21 | Pedal | 1 |
| 31***30 | Bushing, Pedal | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Control System : Backhoe Control Pedal (Left Side) Komatsu Layout Control
| 31***21 | Pedal | 1 |
| 31***30 | Bushing, Pedal | 1 |
| 31***57 | Pedal Support | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Control System : Backhoe Control Pedal (Right Side)
| 31***63 | Pedal Support | 1 |
| 31***20 | Pedal | 1 |
| 31***30 | Bushing, Pedal | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Control System : Backhoe Control Pedal (Right Side) - Komatsu Layout Control
| 31***20 | Pedal | 1 |
| 31***30 | Bushing, Pedal | 1 |
| 31***57 | Pedal Support | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-Up) : Control System : Fuel Control Lever
| 31***90 | Assembly, Cable | 1 |
| 31***36 | Accelerator Lever | 1 |
| 31***55 | Command Boot | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Control System : Fuel Control Pedal
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-Up) : Control System : Shovel Control Lever
| 31***04 | Spacer | 4 |
| 31***66 | Knob | 1 |
| 31***54 | Block | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Control System : Shovel Control Lever (Bucket 4 In 1)
| 31***04 | Spacer | 4 |
| 31***66 | Knob | 1 |
| 31***54 | Block | 1 |
Engine
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-Up) : Engine : Cooling Water System
| YM***10 | Protector | 1 |
| YM***02 | Screw | 4 |
| YM***50 | Pulley | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Engine : Crankshaft & Piston
| YM***00 | Connecting Rod, Assembly | 4 |
| YM***00 | Assembly, Piston (+0.25 mm) | 4 |
| YM***80 | Gear, Ring | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-Up) : Engine : Cylinder Head
| 87***40 | Turbo Engine | 1 |
| YM***70 | Cap Valve | 8 |
| YM***02 | Bolt | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Engine : Engine Stop Device
| YM***00 | Pin, Cotter | 2 |
| YM***02 | Nut | 1 |
| YM***20 | Joint | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Engine : Exaust Manifol & Silencer
| YM***80 | Packing | 1 |
| YM***02 | Screw | 2 |
| YM***22 | Stud | 4 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Engine : Feed Pump
| YM***40 | Gasket | 4 |
| YM***60 | O-Ring | 2 |
| YM***00 | Screw | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Engine : Flywheel Housing & Oil Pump
| YM***02 | Screw | 26 |
| YM***20 | Oil Sump | 1 |
| YM***80 | Parallel Pin | 2 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-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 140f50092-Up) : Engine : Fuel Injection Valve
| YM***00 | Nozzle | 4 |
| YM***02 | Bolt Plated | 1 |
| YM***20 | Spring | 4 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Engine : Fuel Line (1/2)
| YM***80 | Screw | 1 |
| YM***50 | Pipe, Assembly | 1 |
| YM***02 | Screw | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-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 140f50092-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 140f50092-Up) : Engine : Generator
| YM***20 | Timer,Solenoid | 1 |
| YM***40 | Distance Piece | 1 |
| YM***40 | Screw | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Engine : Generator 80a
| YM***10 | Pulley | 1 |
| YM***60 | Spool & Housing | 1 |
| YM***20 | Bolt Kit | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Engine : Governor (1/2)
| YM***40 | Screw | 1 |
| YM***00 | Screw | 1 |
| YM***10 | Screw | 6 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-Up) : Engine : Lubricatin Oil Line
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-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 140f50092-Up) : Engine : Suction Manifold
| YM***00 | Heather Air | 1 |
| YM***02 | Screw | 1 |
| YM***50 | Joint | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-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 140f50092-Up) : Engine Related Parts And Electrical System : Artic Version
| 88***28 | Battery | 1 |
| YM***65 | 30? C Heather Air | 1 |
| YM***64 | Relay, Pre-Heating Timer | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-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 140f50092-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 140f50092-Up) : Engine Related Parts And Electrical System : Electrical System (3/6)
| 31***89 | Terminal(+), Assembly | 1 |
| 31***90 | Terminal (-), Assembly | 1 |
| 31***79 | Battery Retainer | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-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 140f50092-Up) : Engine Related Parts And Electrical System : Electrical System (6/6)
| 80***39 | Screw | 2 |
| 80***01 | Self-Locking Screw | 1 |
| 80***08 | Nut (With Stabilizers Only) | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Engine Related Parts And Electrical System : Engine And Drive Connection
| 31***85 | Dip Oil Stick | 1 |
| 31***11 | Level Pipe | 1 |
| 31***14 | Union | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Engine Related Parts And Electrical System : Engine Mounting Part
| 31***62 | Right Support | 1 |
| 31***65 | Left Support | 1 |
| 31***89 | Motor Support | 2 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Engine Related Parts And Electrical System : Front Dashboard (1/2)
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Engine Related Parts And Electrical System : Front Dashboard (2/2)
| 31***86 | Front Dashboard, Assembly | 1 |
| 31***00 | Front Instrument Board | 1 |
| 80***31 | Self-Tapping Screw | 4 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Engine Related Parts And Electrical System : Fuel Piping
| 30***39 | Hose | 1 |
| 31***51 | Hose | 1 |
| 31***52 | Pipe | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Engine Related Parts And Electrical System : Fuel Tank
| 31***92 | Splash Guard | 1 |
| 31***55 | Level Indicator | 1 |
| 31***78 | Fuel Tank | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-Up) : Engine Related Parts And Electrical System : Lateral Dashboard (1/2)
| 31***26 | Lateral Dashboard, Assembly (For Cabin) | 1 |
| 31***01 | Lateral Instrument Board | 1 |
| 80***31 | Self-Tapping Screw | 4 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-Up) : Engine Related Parts And Electrical System : Muffler
| 31***53 | Hose | 1 |
| 31***55 | Stub Pipe | 1 |
| 31***75 | Protection Side Outward | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Engine Related Parts And Electrical System : Prefilter (Optional)
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Engine Related Parts And Electrical System : Radiator
| 31***11 | Gasket | 1 |
| 31***91 | Radiator Support | 2 |
| 31***92 | Protection | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-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 140f50092-Up) : Frame : Axle Lubricating Piping
| 39***45 | Tube | 1 |
| 50***15 | Union | 1 |
| 50***52 | Union | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Frame : Frame
| 31***67 | Frame Horizontal Outrigger | 1 |
| 31***01 | Plate | 2 |
| 31***06 | Plate Fixing | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Frame : Front Axle (1/6)
| 20***34 | Front Axle, Assembly | 1 |
| CA***10 | Bushing | 1 |
| CA***35 | Bush | 4 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Frame : Front Axle (2/6)
| CA***10 | Greaser Nipple | 2 |
| CA***95 | Jack | 1 |
| CA***11 | Fitting | 2 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Frame : Front Axle (3/6)
| CA***70 | Shim, 3.000 mm | 0 |
| CA***68 | Shim, 2.800 mm | 0 |
| CA***50 | Bearing | 2 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Frame : Front Axle (4/6)
| CA***09 | Bearing | 2 |
| CA***78 | Locking Plate | 2 |
| CA***61 | Differential Kit | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Frame : Front Axle (5/6)
| CA***61 | Double Joint | 2 |
| CA***46 | Fork (Differential Side) | 1 |
| CA***92 | Spacer | 2 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Frame : Front Axle (6/6)
| CA***90 | Centering Bush | 16 |
| CA***70 | Bearing | 4 |
| CA***40 | Pin | 4 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Frame : Front Propeller Shaft And Front Axle Fixing
| 31***67 | Protection | 1 |
| 31***69 | Shaft | 1 |
| 31***00 | Front Support | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Frame : Handbrake And Rear Propeller Shaft
| 31***71 | Shaft | 1 |
| 31***75 | Assembly, Cable | 1 |
| 31***32 | Fasterner Cable | 2 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Frame : Hydraulic Piping (Brake Line)
| 31***01 | Union | 2 |
| 31***58 | R.H. Pipe | 1 |
| 31***59 | L.H. Pipe | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-Up) : Frame : Hydraulic Piping (Transmission Cooling Line)
| 39***03 | Hose | 1 |
| 39***01 | Hose | 1 |
| 50***87 | Union | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Frame : Rear Axle (1/8)
| 20***33 | Rear Axle, Assembly | 1 |
| CA***11 | Oil Seal | 2 |
| CA***50 | Beam Trumpet, L.H | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Frame : Rear Axle (2/8)
| CA***41 | Bevel Gear/Pinion Set | 1 |
| CA***92 | Collapsible Spacer | 1 |
| CA***90 | Seal Ring | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Frame : Rear Axle (3/8)
| CA***47 | Bush | 2 |
| CA***67 | Bearing | 2 |
| CA***69 | Pin | 2 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Frame : Rear Axle (4/8)
| CA***41 | Shaft | 1 |
| CA***21 | O-Ring | 2 |
| CA***20 | Plug | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Frame : Rear Axle (5/8)
| CA***31 | Quadring | 2 |
| CA***40 | Brake Drive-Plate | 2 |
| CA***57 | Quadring | 2 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Frame : Rear Axle (6/8)
| CA***61 | Bush | 2 |
| CA***81 | Spring, L.H | 1 |
| CA***38 | Lock-Lever Bolt | 2 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Frame : Rear Axle (7/8)
| CA***90 | Centering Bush | 16 |
| CA***70 | Bearing | 4 |
| CA***38 | Crown Gear | 2 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Frame : Rear Axle (8/8)
| CA***77 | Snap Ring | 2 |
| CA***99 | Coupling Bushing | 2 |
| CA***91 | Thrust Washer | 6 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Frame : Transmission (1/13)
| 20***67 | Gear Shaft, Assembly | 1 |
| CA***22 | Plug | 3 |
| CA***60 | Copper Washer | 3 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Frame : Transmission (10/13)
| CA***90 | Pump Assembly | 1 |
| CA***66 | Oil Seal | 1 |
| CA***61 | O-Ring | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-Up) : Frame : Transmission (12/13)
| CA***54 | Harness System | 1 |
| CA***63 | Electrovalve | 2 |
| CA***52 | Distributor | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Frame : Transmission (13/13)
| CA***87 | Sensor Gasket | 1 |
| CA***81 | Washer | 2 |
| CA***87 | Sensor, Oil Temperature | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Frame : Transmission (2/13)
| CA***90 | Seal Ring | 2 |
| CA***86 | Thrust Washer | 2 |
| CA***92 | Gear | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Frame : Transmission (3/13)
| CA***29 | Bearing | 1 |
| CA***58 | Gear | 1 |
| CA***87 | Flange | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-Up) : Frame : Transmission (5/13)
| CA***90 | Seal Ring | 1 |
| CA***86 | Seal Ring | 2 |
| CA***58 | Oil Plug | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Frame : Transmission (6/13)
| CA***90 | Seal Ring | 2 |
| CA***89 | Phonic Wheel | 1 |
| CA***20 | Shim 0,1 mm | 0 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-Up) : Frame : Transmission (8/13)
| CA***99 | Belleville Washer | 6 |
| CA***31 | O-Ring | 1 |
| CA***09 | Bearing | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Frame : Transmission (9/13)
| CA***95 | Spacer | 1 |
| CA***13 | Clutch Drive Plate | 10 |
| CA***90 | Bearing | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Frame : Wheels
| 31***61 | Front Rim | 2 |
| 31***68 | Rear Rim | 2 |
| 81***25 | Tyre (14x17,5 10pr) | 2 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-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 140f50092-Up) : Guard And Operator'S Cab : Cabin (1/11)
| 31***25 | Operator'S Cab, Assembly | 1 |
| 31***10 | Cabin Structure | 1 |
| 31***80 | Glass Window, Lower | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Guard And Operator'S Cab : Cabin (10/11)
| 80***86 | Washer | 4 |
| 80***56 | Bolt | 4 |
| 80***60 | Screw | 2 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-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 140f50092-Up) : Guard And Operator'S Cab : Cabin (3/11)
| 80***71 | Bolt | 4 |
| 80***45 | Screw | 2 |
| 80***08 | Nut (With Stabilizers Only) | 4 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Guard And Operator'S Cab : Cabin (4/11)
| 31***41 | Cylinder | 2 |
| 31***42 | Spring | 4 |
| 31***43 | Pin | 4 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-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 140f50092-Up) : Guard And Operator'S Cab : Cabin (7/11)
| 80***64 | Screw | 2 |
| 80***64 | Self Taping Screw | 2 |
| 80***06 | Spring Washer | 2 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Guard And Operator'S Cab : Cabin (8/11)
| 31***03 | Canopy | 1 |
| 31***31 | Washer | 5 |
| 31***32 | Washer | 2 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-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 140f50092-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 140f50092-Up) : Guard And Operator'S Cab : Covers (1/3)
| 31***65 | Hinge Linkage | 1 |
| 31***84 | Inspection Plug | 1 |
| 31***13 | Hood (Cabin) | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Guard And Operator'S Cab : Covers (2/3)
| 31***00 | Front Closure | 1 |
| 31***03 | Ballast 310 Kg | 1 |
| 31***10 | Ballast 150 Kg | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-Up) : Guard And Operator'S Cab : Dashboard, Floor Mat (Cabin)
| 31***67 | Floor Board | 1 |
| 31***90 | Lateral Dashboard | 1 |
| 31***05 | Front Dashboard | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-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 140f50092-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 140f50092-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 140f50092-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 140f50092-Up) : Guard And Operator'S Cab : Operator'S Seat Support (For Cabin)
| 31***64 | Box | 1 |
| 31***66 | Box | 1 |
| 31***89 | Operator'S Seat, Assembly | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Guard And Operator'S Cab : Operator'S Seat Support (For Canopy)
Hydraulic System Work Equipment
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Hydraulic System Work Equipment : Adjustable Guide (Cabin)
| 31***07 | Pin | 1 |
| 31***50 | Support | 1 |
| 31***51 | Stud Bolt Steering | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Hydraulic System Work Equipment : Backhoe Control Valve (1/8)
| 84***71 | Block, Outrigger Control Assembly | 2 |
| 84***75 | Tie Rods Kit | 1 |
| 84***94 | Outlet Section, Assembly | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Hydraulic System Work Equipment : Backhoe Control Valve (2/8)
| 84***13 | Gasket Kit | 1 |
| 84***76 | Inlet Housing | 1 |
| 84***77 | Pressure Relief Valve | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-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 140f50092-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 140f50092-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 140f50092-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 140f50092-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 140f50092-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 140f50092-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 140f50092-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 140f50092-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 140f50092-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 140f50092-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 140f50092-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 140f50092-Up) : Hydraulic System Work Equipment : Floor Board Hydraulic Tank
| 31***19 | Splash Guard | 1 |
| 31***61 | Floor Board | 1 |
| 80***08 | Bolt (Only With Cabin) | 3 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Hydraulic System Work Equipment : Hammer Hydraulic Piping With Jig Arm (1/2)
| 31***21 | Bushing | 2 |
| 39***04 | Hose | 1 |
| 39***01 | Hose | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Hydraulic System Work Equipment : Hammer Hydraulic Piping With Jig Arm (2/2)
| 31***96 | Pipe | 1 |
| 31***97 | Pipe | 1 |
| 39***07 | Hose | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-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 140f50092-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 140f50092-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 140f50092-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Boom Cylinder Line)
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Boom Swing Cylinder Line)
| 31***10 | Buckle | 1 |
| 31***11 | Support | 2 |
| 39***62 | Pin | 2 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Bucket - 4 In 1 Cylinder Line) (2/2)
| 31***78 | Pin | 2 |
| 31***80 | Bucket 4 In 1, Assembly | 1 |
| 31***18 | Pin | 2 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Bucket Cylinder Line) (2/2)
| 31***97 | Pipe | 1 |
| 31***05 | Pin | 1 |
| 31***18 | Spacer | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-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***66 | Pipe | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Delivery Line)
| 20***90 | Pressure Take-Up | 1 |
| 31***81 | Pipe | 1 |
| 39***13 | Hose | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-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 140f50092-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 140f50092-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Jig Arm Cylinder Line)
| 31***21 | Bushing | 2 |
| 39***08 | Hose | 2 |
| 39***02 | Hose | 2 |
Komatsu : Wb140ps-2(S/N 140f50092-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 | 2 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Oil Cooler And Return Line) (2/2)
| 31***17 | Union | 1 |
| 31***41 | Protection | 1 |
| 31***46 | Union | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-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 140f50092-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 140f50092-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Ride Control) (2/2) (Optional)
| 39***19 | Hose | 1 |
| 39***25 | Hose | 1 |
| 39***36 | Hose | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Shovel Lifting Cylinder Line) (1/2)
| 31***63 | Support | 1 |
| 31***75 | Pipe | 1 |
| 31***76 | Pipe | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-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 140f50092-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 140f50092-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Shovel Tipping Cylinder Line) (1/2)
| 31***64 | Buckle | 2 |
| 31***77 | Pipe | 1 |
| 31***78 | Pipe | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Shovel Tipping Cylinder Line) (2/2)
| 31***65 | Pin ? 50 | 2 |
| 31***13 | Pin ? 45 | 2 |
| 36***11 | Protection | 2 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Shovel Tipping Cylinder Line) (With Return To Dig)
| 31***07 | Protection | 1 |
| 31***06 | Support | 1 |
| 31***03 | Protection | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Shovel Tipping Cylinder) (Electric Safety Valve)
| 31***00 | Fastener | 2 |
| 31***01 | Plate | 2 |
| 31***75 | Pipe | 2 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Shovel Tipping Cylinder) (Safety Valve)
| 31***61 | Tipping Pipe, R.H | 1 |
| 31***62 | Tipping Pipe, L.H | 1 |
| 31***63 | Tipping Pipe | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Steering Line) (1/2)
| 30***32 | Mini-Intake | 1 |
| 30***38 | Retainer | 1 |
| 31***54 | Hose | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Steering Line) (2/2)
| 39***25 | Hose | 1 |
| 39***01 | Hose | 2 |
| 50***46 | Union | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Suction)
| 31***74 | Suction Flange | 1 |
| 31***43 | Aspiration Oil Tube | 1 |
| 31***44 | Union | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Hydraulic System Work Equipment : Hydraulic Pump (1/2)
| 84***22 | Pump Assembly (Turbo Engine) | 1 |
| 84***22 | Gruppo Rotante | 1 |
| 84***23 | Unita' Di Controllo | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Hydraulic System Work Equipment : Hydraulic Pump (2/2)
| 84***17 | Pilot Valve | 1 |
| 84***18 | Pilot Valve | 1 |
| 84***30 | O-Ring | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Hydraulic System Work Equipment : Hydraulic Tank
| 20***59 | Indicator Oil Level | 1 |
| 20***60 | Breather Plug | 1 |
| 31***48 | Breather Oil Container | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-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 140f50092-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 140f50092-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 140f50092-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 140f50092-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 140f50092-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 140f50092-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 140f50092-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 140f50092-Up) : Mark Plate : Equipment
| 31***51 | Fastener | 1 |
| 31***50 | Pin | 1 |
| 31***50 | Protection | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Mark Plate : Stickers - Warning Plate (1/5)
| 30***91 | Mark Plate, California Battery | 1 |
| 31***13 | Plate, Hydraulic Transmission Scheme | 1 |
| 31***52 | Plate | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Mark Plate : Stickers - Warning Plate (2/5)
| 31***04 | Plate, ''Air Recycle'' | 1 |
| 81***73 | Kit, Basic Sticker | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Mark Plate : Stickers - Warning Plate (3/5)
| 31***04 | Plate, ''Air Recycle'' | 1 |
| (8***3) | Kit, Basic Sticker | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Mark Plate : Stickers - Warning Plate (4/5) (Only For Machine With Cabin)
| (8***3) | Kit, Basic Sticker | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-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 140f50092-Up) : Work Equipment : Arm Cylinder
| 39***11 | Bushing | 1 |
| 39***13 | Cylinder | 1 |
| 39***11 | Rod | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-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 140f50092-Up) : Work Equipment : Boom Cylinder
| 31***03 | Pipe Stopper | 1 |
| 39***07 | Plug | 1 |
| 39***14 | Bushing | 2 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Work Equipment : Boom Swing Cylinder
| 31***02 | Cylinder | 1 |
| 39***58 | Bushing | 1 |
| 39***17 | Boom Swing Cylinder Assembly., R.H | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Work Equipment : Bracket And Boom (1/2)
| 31***24 | Support | 1 |
| 31***02 | Pin | 1 |
| 31***03 | Bushing | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Work Equipment : Bracket And Boom (2/2)
| 31***57 | Cylinder | 1 |
| 31***25 | Union | 1 |
| 31***26 | Union | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Work Equipment : Bucket 4 In 1
| 31***54 | Tooth | 8 |
| 31***19 | Pin | 2 |
| 39***41 | Bushing | 4 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-Up) : Work Equipment : Bucket 4 In 1 Fast Coupling
| 31***54 | Tooth | 8 |
| 31***19 | Pin | 2 |
| 39***41 | Bushing | 4 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Work Equipment : Bucket Cylinder
| 39***12 | Cylinder | 1 |
| 39***12 | Shaft | 1 |
| 39***12 | Piston | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-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 140f50092-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 140f50092-Up) : Work Equipment : Hammer M50 (2/2)
| 82***54 | Fitting | 1 |
| 82***55 | Retainer | 2 |
| 82***56 | Pin | 2 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-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 140f50092-Up) : Work Equipment : Horizontal Outrigger
| 31***59 | Bearing Boom | 2 |
| 31***52 | Foot | 2 |
| 31***59 | Bearing Boom | 2 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Work Equipment : Horizontal Outrigger (With Rubber)
| 31***59 | Bearing Boom | 2 |
| 31***54 | Foot | 2 |
| 31***59 | Bearing Boom | 2 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-Up) : Work Equipment : Horizontal Outrigger Cylinder Protection
| 31***61 | Clamp | 2 |
| 31***62 | Protection | 2 |
| 31***29 | Plate | 4 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-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 140f50092-Up) : Work Equipment : Jig Arm Cylinder : Unit_02_of_02
| 31***53 | Pipe | 1 |
| 31***63 | Clamp | 1 |
| 31***68 | Pipe | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Work Equipment : Jig Arm Cylinder : Unit_01_of_02
| 39***12 | Cylinder Head | 1 |
| 39***12 | Cylinder | 1 |
| 39***14 | Rod | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-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 140f50092-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 140f50092-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 140f50092-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 140f50092-Up) : Work Equipment : Safety Stay For Loader Arm End
| 31***09 | Pin | 4 |
| 31***83 | Safety Attachment | 1 |
| 80***83 | Bolt | 4 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Work Equipment : Shovel Bucket And Arm (Usa)
| 02***55 | Bolt (Only For Bucket With Cutting Edge) | 15 |
| 02***16 | Nut (Only For Bucket With Cutting Edge) | 15 |
| 12***51 | Cutting Edge (Only For Bucket With Cutting Edge) | 3 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Work Equipment : Shovel Dumping Left Cylinder
| 39***13 | Bushing | 1 |
| 39***13 | Cylinder Head | 1 |
| 39***12 | Cylinder | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Work Equipment : Shovel Dumping Right Cylinder
| 39***13 | Bushing | 1 |
| 39***13 | Cylinder Head | 1 |
| 39***13 | Cylinder | 1 |
Komatsu : Wb140ps-2(S/N 140f50092-Up) : Work Equipment : Shovel Lifting Cylinder
| 39***13 | Bushing | 1 |
| 39***11 | Cylinder Head | 1 |
| 39***12 | Cylinder | 1 |
WB140PS-2(S/N 140F50092-Up) serial number reference
The PIN plate is riveted to the right-hand side of the cab on the lower frame, typically just behind the front idler or beneath the operator's window. The prefix is the first three characters of the 17-character ISO PIN (e.g., '140' in '140F50092...') or the model/serial code '140F' found on the chassis plate.
| Prefix | Identifies | Notes |
|---|---|---|
| 140F50092 | WB140PS-2 | Start of serial range for service manual WEBM004300. Engine: Komatsu S4D1061FH 4-cylinder diesel (86 HP). Configuration: Backhoe loader. Region/Plant: Not specified in sources. Years: Not documented for this exact serial range — verify with your dealer. |
Frequently asked questions
What engine does the WB140PS-2 use?
The WB140PS-2 uses the Komatsu S4D106-2XFH diesel engine.
What is the operating weight of the WB140PS-2?
The operating weight varies by configuration/series, typically ranging from 5,990 to 6,580 kg (13,200 to 14,500 lb).
What model replaced the WB140PS-2?
The WB140-5 series replaced the WB140PS-2.
What WB140PS-2(S/N 140F50092-Up) owners discuss
What engine does the WB140PS-2 (S/N 140F50092-Up) use, and are there known thermal issues?
The WB140PS-2 (S/N 140F50092-Up) uses the Komatsu S4D106-2XFH engine. Operators report that after running for five or more hours, the machine may shut down and fail to restart for 30 minutes due to excessive heat buildup. This thermal equilibrium issue causes slow cranking and high compression until the engine cools. Causes include restricted radiators, incorrect coolant, or faulty thermostats. Have your dealer verify the cooling system integrity and thermostat operation to prevent mild component seizure.
What are the common transmission pressure specifications and failures for this model?
The WB140PS-2 features an electronically controlled, four-wheel-drive, full powershift transmission. Normal torque converter pressure is approximately 40 PSI at idle and 130 PSI at full throttle. A common failure mode involves the low-pressure side reading higher than the specified 8 to 10 PSI, resulting in weak pulling power. Verify pressure readings against factory spec sheets during diagnosis.
What electrical or sensor issues are typical for the WB140PS-2 series?
The WB140PS-2 (S/N 140F50092-Up) utilizes a control board with common Panasonic relays for transmission controls. These soldered relays are known to fail, causing starting issues or transmission faults. The starter/safety relay circuit receives 12V from the fuel pump circuit; if the relay fails, the machine will not crank despite having power. Replacing these relays is a known fix. Have your dealer verify the control board and relay connections if starting issues persist.
What hydraulic fluid and coolant specifications apply to the WB140PS-2?
Use Komatsu EO or equivalent hydraulic oil for the closed-center load sensing system. The engine requires Komatsu Super-coolant AF-NAC or equivalent diesel engine coolant. The hydraulic system capacity is approximately 5.19 liters (1.37 gallons). Verify fluid levels and specifications in the operation and maintenance manual for the specific serial range.
What wear patterns or undercarriage issues are typical for this machine type?
As a wheel loader configuration, the WB140PS-2 experiences wear on tires and final drive seals. The backhoe attachment cylinders, including the boom, arm, and bucket cylinders, are prone to seal leaks. Check for hydraulic fluid leaks around cylinder rods and inspect tire condition for uneven wear patterns indicative of alignment or suspension issues. Consult the shop manual for undercarriage and cylinder maintenance standards.
What is the primary engine quirk per the S4D106-2XFH series for this serial range?
The S4D106-2XFH engine in the WB140PS-2 (S/N 140F50092-Up) is sensitive to thermal management. Prolonged operation without adequate cooling leads to thermal expansion that compromises oil films, causing mild seizure and hard starting. Ensure the radiator core and fins are clean and free of debris. Use proper coolant and verify the thermostat operates correctly at approximately 88 degrees C (190 degrees F). Have your dealer verify the cooling system performance if overheating occurs.
What to check when buying a used WB140PS-2 (S/N 140F50092-Up)?
Verify the serial number plate on the right-hand side of the frame below the cab or on the left-hand side of the engine compartment. Check the torque converter pressure (40 PSI idle, 130 PSI full throttle). Inspect the control board relays for transmission and starting issues. Test the engine for thermal shutdown behavior after five hours of operation. Check for coolant loss and hydraulic leaks around the backhoe cylinders. Confirm the presence of the S4D106-2XFH engine. Have your dealer verify the machine's history and exact configuration against factory records.
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 140F50092-Up). Related factory variants of the same model family:
WB140PS-2(S/N 140F50001-Up)WB140PS-2(S/N 140F50098-Up)
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