Komatsuwheel loadermedium (wa140 - wa380)
Komatsu WB150-2(S/N 150F10303-Up)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu WB150-2 is a backhoe loader manufactured from 1999 to 2006. It is powered by a Komatsu S4D106-2SFA 4-cylinder turbocharged diesel engine producing 100 hp (74.6 kW) gross power. The machine has an operating weight of 19730 lbs (8949.4 kg) and a transport length of 24 ft 1 in (0.025 m). Configurations include standard loader and backhoe attachments with a 1.25 cu yd (1.0 m³) bucket capacity. The WB150-2 succeeded the WB150-1 series and was followed by the WB150-3 generation.
The WB150-2 introduced a more robust hydraulic system and improved operator ergonomics compared to its predecessor. It remains significant in the used market due to its reliable S4D106 engine and widespread parts availability. The machine is valued for its versatility in utility and construction work, with strong aftermarket support for components like the S4D106 engine and hydraulic pumps.
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 WB150-2(S/N 150F10303-Up) specifications
Engine
| Model | S4D106-2SFA |
| Gross Power | 74.6 kW (100 hp) |
| Net Power | 94 hp (70.1 kW) |
| Displacement | 268.6 cu in (4401.6 cc) |
| Cylinders | 4 |
| Emissions Tier | Not documented for this exact serial range — verify with your dealer |
Weights
| Operating Weight | 19730 lbs (8949.4 kg) |
| 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 | 288 in (731.5 cm) |
| Transport Width | 96 in (243.8 cm) |
| Transport Height | 144 in (365.8 cm) |
| Wheelbase | 84 in (213.4 cm) |
| Ground Clearance | 12 in (30.5 cm) |
Performance
| Travel Speed (Forward) | 37.8 km/h (23.5 mph) |
| Travel Speed (Reverse) | 23.5 mph (37.8 km/h) |
| Lift Capacity (Full Height) | 8930 lbs (4050.6 kg) |
| Bucket Breakout Force | 13830 lbs (6273.2 kg) |
| Gradeability | Not documented for this exact serial range — verify with your dealer |
Service capacities (summary)
| Fuel Tank | Not documented for this exact serial range — verify with your dealer |
| Hydraulic System | 24.4 gal (92.4 l) |
| Engine Oil | 2.1 gal (7.9 l) |
| Cooling System | 3.7 gal (14.0 l) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
WB150-2(S/N 150F10303-Up) fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | 7.9 l (2.1 gal) | Komatsu EO or equivalent; viscosity varies by climate per factory spec sheet |
| Cooling system | 14.0 l (3.7 gal) | Super-coolant AF-NAC or equivalent |
| Fuel tank | Not documented for this exact serial range — verify with your dealer | Not documented for this exact serial range — verify with your dealer |
| Transmission/powertrain compartments | Not documented for this exact serial range — verify with your dealer | Not documented for this exact serial range — verify with your dealer |
| Final drives (each) | Not documented for this exact serial range — verify with your dealer | Not documented for this exact serial range — verify with your dealer |
| Hydraulic system AND tank | 92.4 l (24.4 gal) | Komatsu HO46 or equivalent ISO 46 hydraulic fluid |
| Axles/differentials | Front: 8.7 l (2.3 gal); Rear: 17.8 l (4.7 gal) | Komatsu AXO or equivalent axle oil |
| Grease (spec only) | N/A | General lithium-based grease |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Komatsu WB150-2(S/N 150F10303-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 WB150-2(S/N 150F10303-Up) beyond the schedule
Predictive Maintenance & Fluid Analysis
Monitor Komatsu Oil/Fuel & Wear Analysis (KOWA) results for the S4D106-2SFA engine to detect early wear metals. Check hydraulic oil particle count and viscosity at 500-hour intervals. Inspect coolant SCA concentration levels to prevent liner cavitation. Track fuel filter water separator drainage frequency to assess fuel quality. Use KOMTRAX telematics to monitor engine load factors and oil temperature trends for optimal service timing.
Corrective & Common Repairs
Address S4D106-2SFA turbocharger boost leaks by inspecting intercooler hoses and clamps. Replace hydraulic pump seals if pressure drops below 3200 psi relief setting. Fix steering cylinder leaks by replacing piston seals and rod wipers. Repair wet brake disc wear by replacing friction plates and springs. Replace fuel injector O-rings if engine runs rough or loses power. Check alternator brushes and voltage regulator for charging system faults.
Overhaul & Rebuild Points
Rebuild S4D106-2SFA engine at 10,000 hours or when compression drops below specification. Replace hydraulic pump swash plates and pistons if flow capacity falls below 43.6 GPM (165.0 LPM). Recondition front and rear axles by replacing gear sets and bearings when oil contamination exceeds limits. Overhaul wet brake assemblies when disc thickness reaches minimum wear limit. Replace articulation pins and bushings when play exceeds 2.5 mm (0.1 in).
Seasonal & Environment Servicing
In cold weather, use low-temperature hydraulic oil and ensure coolant freeze protection. Preheat engine block before starting in sub-zero conditions. Check battery hold-down and terminals for corrosion in humid environments. Clean radiator and oil cooler fins more frequently in dusty conditions. Inspect air filter restriction indicator often in high-dust areas. Use high-temperature grease in hot climates for steering and axle joints.
WB150-2(S/N 150F10303-Up) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 848001090 | Air Filter, Assembly | Air intake service | Check fitment → |
| 312649126 | Air Filter Box | Air intake service | Check fitment → |
| 312613070 | Oil Filter Fastener | Lubrication service | Check fitment → |
| YM119593-03100 | Filter Breather | Scheduled service item | Check fitment → |
| 848101189 | Filter Cartridge | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
WB150-2(S/N 150F10303-Up) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| CA115 | Engine crankshaft speed sensor failure | Broken sensor, wiring issue, or connector corrosion | Replace the speed sensor and verify voltage at the pin connector |
| CA111 | Internal engine controller fault | ECM internal failure | Replace or reprogram the ECM |
| CA441 | Battery voltage too low | Weak battery or charging system issue | Replace the alternator or battery; check the voltage regulator |
| AA10NX | Air cleaner clogging | Dirty or blocked air filter element | Replace the air filter |
| CA451 | Common rail pressure sensor feedback value too high | Malfunction in the rail sensor or actual overpressure condition | Diagnose the fuel rail pressure sensor or pump lines |
| CA122 | Intake air pressure high voltage | Sensor error or airflow restriction | Verify the intake pressure sensor and wiring |
| CA123 | Intake air pressure low voltage | Sensor short or airflow restriction | Check for a sensor short or an airflow restriction |
| CA153 | Intake air temperature sensor error (high) | Faulty IAT sensor | Replace or test the IAT sensor |
| CA234 | Engine overspeed | Throttle calibration issue, engine load cycle problem, or operator misuse | Verify throttle calibration and engine load cycle |
| CA442 | Battery voltage too high | Alternator overcharging or regulator failure | Replace the alternator or battery; check the voltage regulator |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
WB150-2(S/N 150F10303-Up) attachments & work tools
Loader Bucket
Standard general-purpose bucket capacity is 1.0 m³ (1.25 cu yds) with a width of 235.5 cm (92.7 in). Factory specifications list a breakout force of 6273.2 kg (13830 lbs) for the loader arm assembly.
Backhoe Bucket
Standard digging depth is 487.7 cm (192 in), with an extended option reaching 548.6 cm (216 in). The backhoe tear-out force is rated at 62 kN (approximately 13900 lbs) in standard configuration data.
Quick Attach Conversion
Aftermarket kits exist to convert the standard pin-on backhoe bucket to a universal skid-steer quick attach interface. These conversion plates are rated for a 2495 kg (5500 lbs) lift capacity, which is below the machine's full loader lift capacity.
Coupler/Mounting System
The machine utilizes a standard pin-on mounting system for both the front loader and rear backhoe attachments. No factory quick-coupler is documented for the WB150-2 series in the provided specifications.
Hydraulic Kit Requirements
The hydraulic system operates at a relief pressure of 220.6 bar (3200 psi) with a pump flow of 165.0 LPM (43.6 GPM). Aftermarket quick-attach conversions require welding the female interface to the existing bucket, implying no factory hydraulic quick-connect is standard for the backhoe.
Engine Configuration
The WB150-2N variant uses the Komatsu S4D106-2SFA engine with 74.6 kW (100 HP) gross power. The WB150-2 series generally falls within the 1999-2006 production window for this generation.
All WB150-2(S/N 150F10303-Up) assemblies by section
Every catalogued assembly group for the Komatsu WB150-2(S/N 150F10303-Up). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Control System
Komatsu : Wb150-2(S/N 150f10303-Up) : Control System : Backhoe Control Levers
| 31***04 | Spacer | 8 |
| 31***12 | Connection L.H | 1 |
| 31***13 | Connection R.H | 1 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Control System : Backhoe Control Pedal (Left Side)
| 31***62 | Bushing, Pedal | 1 |
| 31***63 | Pedal Support | 1 |
| 31***21 | Pedal | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Control System : Backhoe Control Pedal (Left Side) Komatsu Layout Control
| 31***62 | Bushing, Pedal | 1 |
| 31***21 | Pedal | 1 |
| 31***26 | Spacer (Only For Canopy) | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Control System : Backhoe Control Pedal (Right Side)
| 31***61 | Bushing, Pedal | 1 |
| 31***63 | Pedal Support | 1 |
| 31***20 | Pedal | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Control System : Backhoe Control Pedal (Right Side) - Komatsu Layout Control
| 31***20 | Pedal | 1 |
| 31***26 | Spacer (Only For Canopy) | 1 |
| 31***30 | Bushing, Pedal | 1 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Control System : Capacity Regulator
| 31***61 | Support | 1 |
| 31***62 | Support | 1 |
| 31***19 | Nut | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Control System : Fuel Control Lever
| 31***90 | Assembly, Cable | 1 |
| 31***36 | Accelerator Lever | 1 |
| 31***55 | Command Boot | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Control System : Fuel Control Pedal
| 31***81 | Support | 1 |
| 31***83 | Accelerator Lever | 1 |
| 31***84 | Lever For Cable | 1 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Control System : Shovel Control Lever
| 31***04 | Spacer | 4 |
| 31***86 | Knob | 1 |
| 31***54 | Block | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Control System : Shovel Control Lever (Bucket 4 In 1)
| 31***04 | Spacer | 4 |
| 31***86 | Knob | 1 |
| 31***54 | Block | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Control System : Transmission Lever Control
| 31***08 | Lever | 1 |
| 80***74 | Bolt | 1 |
| 80***06 | Nut | 1 |
Engine
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine : Camshaft & Driving Gear
| YM***50 | Bearing, Thrust | 1 |
| YM***00 | Gear,Injection Pump Drive | 1 |
| YM***00 | Gear | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine : Cooling Water System
| YM***40 | Tube | 1 |
| YM***02 | Screw | 4 |
| YM***40 | Fan | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine : Crankshaft & Piston
| YM***00 | Connecting Rod, Assembly | 4 |
| YM***00 | Assembly, Piston (+0.25 mm) | 4 |
| YM***80 | Gear, Ring | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine : Cylinder Bolck
| YM***00 | Screw | 18 |
| YM***20 | Bolt | 10 |
| YM***40 | Spring | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine : Cylinder Head
| 87***50 | Turbo Engine, Assembly | 1 |
| YM***70 | Cap Valve | 8 |
| YM***02 | Bolt | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine : Engine Stop Device
| YM***00 | Pin, Cotter | 2 |
| YM***02 | Nut | 1 |
| YM***11 | Coil, Assembly | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine : Exaust Manifol & Silencer
| YM***80 | Packing | 1 |
| YM***02 | Screw | 2 |
| YM***02 | Screw | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine : Feed Pump
| YM***40 | Gasket | 4 |
| YM***60 | O-Ring | 2 |
| YM***00 | Screw | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine : Flywheel Housing & Oil Pump
| YM***02 | Screw | 26 |
| YM***80 | Parallel Pin | 2 |
| YM***52 | Screw | 10 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine : Fuel Injection Pump (1/2)
| YM***11 | Pump, Assembly | 1 |
| YM***30 | Shim, 0.400 mm | 1 |
| YM***50 | Shim, 1.250 mm | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine : Fuel Injection Pump (2/2)
| YM***00 | Segment | 4 |
| YM***40 | Gasket | 2 |
| YM***00 | Seat | 4 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine : Fuel Injection Valve
| YM***20 | Pipe | 1 |
| YM***40 | Injection Pipe N. 4 | 1 |
| YM***02 | Bolt Plated | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine : Fuel Line (1/2)
| YM***10 | Banjo Fitting | 1 |
| YM***80 | Screw | 1 |
| YM***11 | Clamp | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine : Fuel Line (2/2)
| YM***02 | Screw | 1 |
| YM***22 | Center Bolt | 1 |
| YM***00 | Banjo Bolt | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine : Gasket Kit
| YM***80 | Packing | 1 |
| YM***00 | O-Ring (Kit) | 1 |
| YM***40 | O-Ring,Drain Plug | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine : Gear Housing
| YM***02 | Bolt Plated | 11 |
| YM***51 | Cap, Lub. Oil Supply | 1 |
| YM***02 | Screw | 6 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine : Generator
| YM***20 | Timer,Solenoid | 1 |
| YM***40 | Distance Piece | 1 |
| YM***40 | Screw | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine : Generator 80a
| YM***10 | Pulley | 1 |
| YM***60 | Spool & Housing | 1 |
| YM***20 | Bolt Kit | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine : Governor (1/2)
| YM***40 | Screw | 1 |
| YM***00 | Screw | 1 |
| YM***20 | Support | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine : Governor (2/2)
| YM***00 | Gasket | 1 |
| YM***40 | Screw | 4 |
| YM***20 | Lever | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine : Lubricatin Oil Line
| YM***60 | Pipe | 1 |
| YM***81 | Retainer | 1 |
| YM***50 | Oil Pressure Transmitter | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine : Lubricating Oil System
| YM***00 | O-Ring (Kit) | 1 |
| YM***30 | Shim, 1.000 mm | 1 |
| YM***00 | Plug | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine : Starting Motor
| YM***30 | Dust Cover Set | 1 |
| YM***71 | Brush Holder Ass'Y | 1 |
| YM***10 | Terminal Cover | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine : Suction Manifold
| YM***00 | Heather Air | 1 |
| YM***02 | Screw | 1 |
| YM***50 | Joint | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine : Turbocharger
| YM***02 | Nut | 4 |
| YM***11 | Turbine | 1 |
| YM***90 | Packing | 1 |
Engine Related Parts And Electrical System
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine Related Parts And Electrical System : Air Filter
| 84***90 | Air Filter, Assembly | 1 |
| 84***89 | Filter Cartridge | 1 |
| 84***90 | Safety Filter | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine Related Parts And Electrical System : Air Filter Plant
| 31***28 | Cover | 1 |
| 31***31 | Suction Flange | 1 |
| 31***34 | Filter Support | 1 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Engine Related Parts And Electrical System : Battery Detachment
| 31***88 | Terminal (+), Assembly | 1 |
| 31***10 | Switch Support | 1 |
| 80***66 | Bolt | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine Related Parts And Electrical System : Electrical System (1/6)
| 31***07 | Cover | 1 |
| 31***34 | Support | 1 |
| 31***42 | Wiring Harness, Assembly | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine Related Parts And Electrical System : Electrical System (2/6)
| 31***68 | Wiring, Electro-Valve Line | 1 |
| 31***12 | Wiring Harness, Front | 1 |
| 31***29 | Wiring Harness, Assembly | 1 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Engine Related Parts And Electrical System : Electrical System (5/6)
| 80***44 | Bolt | 1 |
| 80***47 | Bolt | 1 |
| 80***43 | Screw | 2 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Engine Related Parts And Electrical System : Engine And Drive Connection
| 31***85 | Dip Oil Stick | 1 |
| 31***10 | Level Pipe | 1 |
| 31***14 | Union | 1 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Engine Related Parts And Electrical System : Front Dashboard (1/2)
| 80***51 | Screw | 4 |
| 80***05 | Spring Washer | 4 |
| 88***38 | Conmutator, Assembly | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine Related Parts And Electrical System : Front Dashboard (2/2)
| 31***84 | Front Dashboard, Assembly (Only For Cabin) | 1 |
| 31***97 | Front Dashboard, Assembly (Only For Canopy) | 1 |
| 31***00 | Front Instrument Board | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine Related Parts And Electrical System : Fuel Piping
| 30***39 | Hose | 1 |
| 31***51 | Hose | 1 |
| 31***52 | Pipe | 1 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Engine Related Parts And Electrical System : Fuses Box
| 31***81 | Protection | 1 |
| 31***82 | Box, Assembly | 1 |
| 31***23 | Sensor Wiring 4 Speed | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine Related Parts And Electrical System : Lateral Dashboard (1/2)
| 31***59 | Lateral Dashboard, Assembly (For Cabin) | 1 |
| 31***60 | Lateral Dashboard, Assembly (For Canopy) | 1 |
| 31***01 | Lateral Instrument Board | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine Related Parts And Electrical System : Lateral Dashboard (2/2)
| 31***56 | Switch | 1 |
| 85***72 | Bulb | 1 |
| 88***38 | Automatic Power Relay | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine Related Parts And Electrical System : Muffler
| 31***53 | Hose | 1 |
| 31***55 | Stub Pipe | 1 |
| 31***75 | Protection Side Outward | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine Related Parts And Electrical System : Prefilter (Optional)
| 31***61 | Plug | 3 |
| 31***52 | Extension | 1 |
| 80***80 | Hose-Clamp | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine Related Parts And Electrical System : Radiator
| 31***91 | Radiator Support | 2 |
| 31***24 | Complete Radiator | 1 |
| 31***30 | Cock | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Engine Related Parts And Electrical System : Radiator Tank
| 30***11 | Pipe | 1 |
| 31***20 | Chamber | 1 |
| 31***25 | Upper Support | 1 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Frame : Axle Lubricating Piping
| 39***45 | Tube | 1 |
| 50***15 | Union | 1 |
| 50***52 | Union | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Frame
| 31***67 | Frame Horizontal Outrigger | 1 |
| 31***01 | Plate | 2 |
| 31***06 | Plate Fixing | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Front Axle (2wd) (1/3)
| 20***22 | Front Axle, Assembly | 1 |
| CA***10 | Bushing | 1 |
| CA***30 | Spring Washer | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Front Axle (2wd) (2/3)
| CA***10 | Greaser Nipple | 2 |
| CA***95 | Jack | 1 |
| CA***11 | Fitting | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Front Axle (2wd) (3/3)
| CA***81 | Thrust Washer | 2 |
| CA***70 | Bearing | 4 |
| CA***40 | Pin | 4 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Front Axle (4wd) (1/6)
| 20***34 | Front Axle, Assembly | 1 |
| CA***10 | Bushing | 1 |
| CA***35 | Bush | 4 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Front Axle (4wd) (2/6)
| CA***10 | Greaser Nipple | 2 |
| CA***95 | Jack | 1 |
| CA***11 | Fitting | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Front Axle (4wd) (3/6)
| CA***70 | Shim, 3.000 mm | 0 |
| CA***68 | Shim, 2.800 mm | 0 |
| CA***50 | Bearing | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Front Axle (4wd) (4/6)
| CA***09 | Bearing | 2 |
| CA***78 | Locking Plate | 2 |
| CA***61 | Differential Kit | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Front Axle (4wd) (5/6)
| CA***61 | Double Joint | 2 |
| CA***46 | Fork (Differential Side) | 1 |
| CA***92 | Spacer | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Front Axle (4wd) (6/6)
| CA***90 | Centering Bush | 16 |
| CA***70 | Bearing | 4 |
| CA***40 | Pin | 4 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Front Axle Fixing (2wd)
| 31***00 | Front Support | 1 |
| 31***01 | Rear Support | 1 |
| 31***02 | Pin | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Front Propeller Shaft And Front Axle Fixing (4wd)
| 31***67 | Protection | 1 |
| 31***69 | Shaft | 1 |
| 31***00 | Front Support | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Handbrake And Rear Propeller Shaft
| 31***70 | Shaft | 1 |
| 31***75 | Assembly, Cable | 1 |
| 31***32 | Fasterner Cable | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Hydraulic Piping (Brake Line)
| 31***01 | Union | 2 |
| 31***58 | R.H. Pipe | 1 |
| 31***59 | L.H. Pipe | 1 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Frame : Hydraulic Piping (Transmission Cooling Line)
| 31***82 | Hose | 1 |
| 31***83 | Hose | 1 |
| 31***84 | Collar | 2 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Frame : Rear Axle (2/8)
| CA***41 | Bevel Gear/Pinion Set | 1 |
| CA***92 | Collapsible Spacer | 1 |
| CA***90 | Seal Ring | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Rear Axle (3/8)
| CA***47 | Bush | 2 |
| CA***67 | Bearing | 2 |
| CA***69 | Pin | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Rear Axle (4/8)
| CA***41 | Shaft | 1 |
| CA***21 | O-Ring | 2 |
| CA***20 | Plug | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Rear Axle (5/8)
| CA***31 | Quadring | 2 |
| CA***40 | Brake Drive-Plate | 2 |
| CA***57 | Quadring | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Rear Axle (6/8)
| CA***61 | Bush | 2 |
| CA***81 | Spring, L.H | 1 |
| CA***38 | Lock-Lever Bolt | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Rear Axle (7/8)
| CA***90 | Centering Bush | 16 |
| CA***70 | Bearing | 4 |
| CA***38 | Crown Gear | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Rear Axle (8/8)
| CA***77 | Snap Ring | 2 |
| CA***99 | Coupling Bushing | 2 |
| CA***91 | Thrust Washer | 6 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Transmission (2wd) (1/11)
| 20***63 | Drive Shaft, Assembly | 1 |
| CA***90 | Pump Assembly | 1 |
| CA***61 | O-Ring | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Transmission (2wd) (10/11)
| CA***86 | Copper Washer | 1 |
| CA***12 | Valve Cover | 1 |
| CA***40 | Copper Washer | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Transmission (2wd) (11/11)
| CA***71 | Flange | 1 |
| CA***69 | Flywheel Towing Plate | 1 |
| CA***50 | Spring Washer | 6 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Transmission (2wd) (2/11)
| CA***70 | Valve Kit | 1 |
| CA***31 | O-Ring | 1 |
| CA***20 | Plug | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Transmission (2wd) (3/11)
| CA***02 | Gasket | 1 |
| CA***22 | Plug | 4 |
| CA***60 | Copper Washer | 4 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Transmission (2wd) (4/11)
| CA***90 | Seal Ring | 2 |
| CA***86 | Thrust Washer | 2 |
| CA***29 | Bearing | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Transmission (2wd) (5/11)
| CA***86 | Thrust Washer | 1 |
| CA***33 | Gear | 1 |
| CA***60 | Bearing | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Transmission (2wd) (6/11)
| CA***86 | Thrust Washer | 1 |
| CA***38 | Gear | 1 |
| CA***67 | Spacer | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Transmission (2wd) (7/11)
| CA***01 | Ball | 3 |
| CA***00 | Sleeve | 1 |
| CA***03 | Spring | 3 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Transmission (2wd) (8/11)
| CA***04 | Drive Fork 3-4 | 1 |
| CA***17 | Bolt | 1 |
| CA***93 | Bolt | 3 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Transmission (2wd) (9/11)
| CA***22 | Plug | 4 |
| CA***29 | O-Ring | 3 |
| CA***60 | Copper Washer | 4 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Transmission (4wd) (1/13)
| 20***58 | Drive Shaft, Assembly | 1 |
| CA***90 | Pump Assembly | 1 |
| CA***61 | O-Ring | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Transmission (4wd) (10/13)
| CA***86 | Copper Washer | 1 |
| CA***12 | Valve Cover | 1 |
| CA***40 | Copper Washer | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Transmission (4wd) (11/13)
| CA***22 | Plug | 4 |
| CA***29 | O-Ring | 3 |
| CA***60 | Copper Washer | 4 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Transmission (4wd) (12/13)
| CA***02 | Gasket | 1 |
| CA***22 | Plug | 1 |
| CA***60 | Copper Washer | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Transmission (4wd) (13/13)
| CA***71 | Flange | 1 |
| CA***69 | Flywheel Towing Plate | 1 |
| CA***50 | Spring Washer | 6 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Transmission (4wd) (2/13)
| CA***70 | Valve Kit | 1 |
| CA***31 | O-Ring | 1 |
| CA***20 | Plug | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Transmission (4wd) (3/13)
| CA***22 | Plug | 3 |
| CA***60 | Copper Washer | 3 |
| CA***68 | Breather Plug | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Transmission (4wd) (4/13)
| CA***90 | Seal Ring | 2 |
| CA***86 | Thrust Washer | 2 |
| CA***29 | Bearing | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Transmission (4wd) (5/13)
| CA***86 | Thrust Washer | 1 |
| CA***33 | Gear | 1 |
| CA***60 | Bearing | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Transmission (4wd) (6/13)
| CA***86 | Thrust Washer | 1 |
| CA***73 | Gear | 1 |
| CA***38 | Gear | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Transmission (4wd) (7/13)
| CA***01 | Ball | 3 |
| CA***00 | Sleeve | 1 |
| CA***03 | Spring | 3 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Transmission (4wd) (8/13)
| CA***84 | Seal Ring | 1 |
| CA***63 | Snap Ring | 1 |
| CA***29 | Bearing | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Transmission (4wd) (9/13)
| CA***04 | Drive Fork 3-4 | 1 |
| CA***17 | Bolt | 1 |
| CA***93 | Bolt | 3 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Wheels (2wd)
| 31***64 | Front Rim | 2 |
| 31***68 | Rear Rim | 2 |
| 81***26 | Tyre (19,5 L24-10pr) | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Wheels (2wd) (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 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Frame : Wheels (4wd)
| 31***61 | Front Rim | 2 |
| 31***68 | Rear Rim | 2 |
| 81***25 | Tyre (14x17,5 10pr) | 2 |
Guard And Operator'S Cab
Komatsu : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Anti-Vandalism Cover (Canopy)
| 31***93 | Cover | 1 |
| 31***78 | Boss | 4 |
| 31***11 | Spacer | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Bullbar Protection (Optional)
| 31***68 | Protection | 1 |
| 31***70 | Right Support | 1 |
| 31***71 | Left Support | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Cabin (1/13)
| 31***25 | Operator'S Cab, Assembly | 1 |
| 31***10 | Cabin Structure | 1 |
| 31***80 | Glass Window, Lower | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Cabin (10/13)
| 31***03 | Canopy | 1 |
| 31***31 | Washer | 5 |
| 31***32 | Washer | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Cabin (11/13)
| 80***29 | Bolt | 1 |
| 80***32 | Self Taping Screw | 8 |
| 80***56 | Self Taping Screw | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Cabin (12/13)
| 80***86 | Washer | 4 |
| 80***56 | Bolt | 4 |
| 80***60 | Screw | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Cabin (13/13)
| 80***25 | Screw | 4 |
| 80***60 | Screw | 8 |
| 80***06 | Washer, Spring | 4 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Cabin (2/13)
| 80***86 | Washer | 4 |
| 80***00 | Screw (Only For Germany) | 4 |
| 80***56 | Screw | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Cabin (3/13)
| 31***75 | Pin | 2 |
| 80***71 | Bolt | 4 |
| 80***45 | Screw | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Cabin (4/13)
| 31***41 | Cylinder | 1 |
| 31***42 | Spring | 2 |
| 31***43 | Pin | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Cabin (5/13)
| 31***41 | Cylinder | 1 |
| 31***42 | Spring | 2 |
| 31***43 | Pin | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Cabin (6/13)
| 31***39 | Bracket | 1 |
| 80***54 | Bolt | 2 |
| 80***64 | Screw | 3 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Cabin (7/13)
| 31***39 | Bracket | 1 |
| 80***54 | Bolt | 2 |
| 80***64 | Screw | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Cabin (8/13)
| 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 : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Cabin (9/13)
| 80***64 | Screw | 2 |
| 80***64 | Self Taping Screw | 2 |
| 80***06 | Spring Washer | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Cabin Air Blending System (1/3)
| 31***03 | Cock Support | 1 |
| 31***74 | Valve | 1 |
| 31***75 | Resistor | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Cabin Air Blending System (2/3)
| 31***93 | ''T'' Union | 1 |
| 31***94 | ''Y'' Union | 1 |
| 31***95 | Hose | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Cabin Air Blending System (3/3)
| 31***29 | Fan Protection | 1 |
| 31***04 | Gasket L=410 mm | 1 |
| 31***05 | Gasket L=485 mm | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Canopy (1/4)
| 31***03 | Canopy | 1 |
| 31***26 | Operator'S Canopy, Assembly | 1 |
| 31***04 | Canopy Structure | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Canopy (2/4)
| 31***82 | Mat | 1 |
| 31***83 | Non-Slip | 8 |
| 31***12 | Non-Slip | 4 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Canopy (3/4)
| 80***86 | Washer | 4 |
| 80***56 | Bolt | 4 |
| 80***60 | Screw | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Canopy (4/4)
| 31***04 | Wrapper | 0 |
| 80***25 | Screw | 4 |
| 80***60 | Screw | 8 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Covers (1/3)
| 31***65 | Hinge Linkage | 1 |
| 31***84 | Inspection Plug | 1 |
| 31***30 | Hood (Cabin) | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Covers (2/3)
| 31***00 | Front Closure | 1 |
| 31***03 | Ballast 310 Kg | 1 |
| 31***09 | Ballast 170 Kg | 1 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Dashboard, Floor Mat (Cabin)
| 31***67 | Floor Board | 1 |
| 31***90 | Lateral Dashboard | 1 |
| 31***32 | Plate | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Dashboard, Floor Mat (Canopy)
| 31***67 | Floor Board | 1 |
| 31***91 | Lateral Dashboard | 1 |
| 31***07 | Cover | 1 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Heating System (1/2)
| 31***80 | Wall | 1 |
| 31***03 | Cock Support | 1 |
| 80***45 | Screw | 4 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Motor Air Blending System (1/2)
| 31***61 | Flange Fixing Tube | 1 |
| 31***68 | Motor Pulley | 1 |
| 31***69 | Pulley | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Motor Air Blending System (2/2)
| 31***09 | Spacer | 1 |
| 31***59 | Flange Fixing Tube | 1 |
| 31***66 | Rear Support | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Operator'S Seat (For Cabin)
| 81***79 | Back Foam | 1 |
| 81***81 | Seat Foam | 1 |
| 81***86 | Damper Assembly Kit | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Operator'S Seat (For Canopy)
| 81***79 | Back Foam | 1 |
| 81***81 | Seat Foam | 1 |
| 81***86 | Damper Assembly Kit | 1 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Guard And Operator'S Cab : Operator'S Seat Support (For Canopy)
| 31***64 | Box | 1 |
| 31***66 | Box | 1 |
| 31***98 | Screw, Assembly | 1 |
Hydraulic System Work Equipment
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Adjustable Guide (Cabin)
| 31***07 | Pin | 1 |
| 31***50 | Support | 1 |
| 31***51 | Stud Bolt Steering | 1 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Backhoe Control Valve (2/8)
| 84***13 | Gasket Kit | 1 |
| 84***23 | Locking Cover Kit (Orange) | 1 |
| 84***24 | Locking Cover Kit (Blue) | 1 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Backhoe Control Valve (4/8)
| 84***74 | Gasket Kit, Secondary Valve | 1 |
| 84***13 | Gasket Kit | 1 |
| 84***16 | Valve Kit | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Backhoe Control Valve (5/8)
| 84***13 | Gasket Kit | 1 |
| 84***16 | Valve Kit | 2 |
| 84***25 | Cover Kit Seal Kit | 1 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Backhoe Control Valve (7/8)
| 84***74 | Gasket Kit, Secondary Valve | 1 |
| 84***13 | Gasket Kit | 1 |
| 84***16 | Valve Kit | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Backhoe Control Valve (8 Sections) (Hammer + Jig Arm)
| 84***93 | Control Valve,Assembly | 1 |
| 84***71 | Block, Outrigger Control Assembly | 2 |
| 84***81 | Block, Jig Arm Control, Assembly | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Backhoe Control Valve (8/8)
| 84***11 | Big Plug | 1 |
| 84***13 | Gasket Kit | 1 |
| (8***9) | Control Valve, Assembly | 1 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Control Valve (7 Section) (For Jig Arm)
| 84***90 | Control Valve,Assembly | 1 |
| 84***71 | Block, Outrigger Control Assembly | 2 |
| 84***81 | Block, Jig Arm Control, Assembly | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Control Valve (7 Sections) (For Hammer)
| 84***91 | Control Valve, Assembly (120 L) | 1 |
| 84***71 | Block, Outrigger Control Assembly | 2 |
| 84***82 | Tie Rods Kit | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Floor Board Hydraulic Tank
| 31***19 | Splash Guard | 1 |
| 31***61 | Floor Board | 1 |
| 31***98 | Gasket | 1 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hammer Hydraulic Piping With Jig Arm (2/2)
| 31***12 | Pipe | 1 |
| 31***13 | Pipe | 1 |
| 31***09 | Bucklet | 3 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hammer Hydraulic Piping With Valve (1/3)
| 31***93 | Plate | 1 |
| 39***49 | Extension | 1 |
| 39***29 | Hose | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hammer Hydraulic Piping With Valve (2/3)
| 39***10 | Hose | 2 |
| 39***35 | Hose | 1 |
| 50***01 | Union | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hammer Hydraulic Piping With Valve (3/3)
| 30***09 | Ring | 2 |
| 31***87 | Wiring Valve | 2 |
| 31***58 | Bracket | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hand-Hammer Hydraulic Piping (1/3)
| 31***93 | Plate | 1 |
| 39***49 | Extension | 1 |
| 39***29 | Hose | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hand-Hammer Hydraulic Piping (2/3)
| 39***10 | Hose | 2 |
| 39***35 | Hose | 1 |
| 50***01 | Union | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hand-Hammer Hydraulic Piping (3/3)
| 31***87 | Wiring Valve | 1 |
| 39***06 | Hose | 1 |
| 39***19 | Hose | 1 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Arm Cylinder Line)
| 31***17 | Pin | 1 |
| 31***21 | Bushing | 2 |
| 39***67 | Pin | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Arm Cylinder Line) (Safety Valve) (Optional)
| 31***65 | Pipe | 1 |
| 31***71 | Union | 1 |
| 31***72 | Pipe | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Boom Cylinder Line)
| 31***11 | Pin | 1 |
| 31***41 | Buckle | 2 |
| 31***42 | Plate | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Boom Cylinder Line) (Safety Valve) (Optional)
| 31***60 | Pipe | 1 |
| 31***61 | Pipe | 1 |
| 31***62 | Pipe, R.H | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Boom Swing Cylinder Line)
| 31***10 | Buckle | 1 |
| 31***11 | Support | 2 |
| 39***62 | Pin | 2 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Bucket - 4 In 1 Cylinder Line) - Safety Valve - (Opt
| 31***94 | Pipe | 1 |
| 31***95 | Pipe | 1 |
| 50***07 | Union | 2 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Bucket Cylinder Line) (2/2)
| 31***02 | Pipe | 1 |
| 31***15 | Spacer | 1 |
| 31***05 | Pin | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Bucket Cylinder Line) (For Jig Arm)
| 31***69 | Plate | 4 |
| 31***72 | Pipe | 1 |
| 31***73 | Pipe | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Delivery Line)
| 20***90 | Pressure Take-Up | 1 |
| 31***81 | Pipe | 1 |
| 31***49 | Spacer | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Hammer Line) (1/3)
| 30***09 | Ring | 2 |
| 31***58 | Bracket | 2 |
| 31***59 | Bracket | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Hammer Line) (2/3)
| 31***54 | Extension | 1 |
| 31***21 | Bushing | 2 |
| 39***11 | Hose | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Hammer Line) (3/3)
| 31***05 | Support R.H | 1 |
| 31***06 | Support L.H | 1 |
| 31***08 | Plate | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Jig Arm Cylinder Line)
| 31***21 | Bushing | 2 |
| 39***44 | Hose | 2 |
| 39***02 | Hose | 2 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Oil Cooler And Return Line) (2/2)
| 31***17 | Union | 1 |
| 31***41 | Protection | 1 |
| 39***26 | Hose | 1 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Outrigger Cylinder Line) (Safety Valves) (Optional)
| 30***31 | Union | 4 |
| 30***74 | Union | 2 |
| 31***73 | Pipe | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Ride Control) (1/3) (Optional)
| 31***02 | Support | 1 |
| 31***06 | Plate | 1 |
| 39***47 | Union | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Ride Control) (2/3) (Optional)
| 31***00 | Union | 1 |
| 31***01 | Support | 1 |
| 50***02 | Plug | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Ride Control) (3/3) (Optional)
| 31***05 | Plate, Accumulator (Lss) | 1 |
| 39***19 | Hose | 1 |
| 39***25 | Hose | 1 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Shovel Lifting Cylinder) (Electric Safety Valve) (Op
| 20***70 | Buckle | 4 |
| 31***00 | Fastener | 2 |
| 31***01 | Plate | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Shovel Lifting Cylinder) (Safety Valve) (Optionals)
| 31***50 | Valve Support | 2 |
| 31***57 | Lifting Pipe, R.H | 1 |
| 31***58 | Lifting Pipe, L.H | 1 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Shovel Tipping Cylinder Line) (With Return To Dig)
| 31***03 | Protection | 1 |
| 31***06 | Support | 1 |
| 31***07 | Protection | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Shovel Tipping Cylinder) (Electric Safety Valve) (Op
| 31***00 | Fastener | 2 |
| 31***01 | Plate | 2 |
| 31***75 | Pipe | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Shovel Tipping Cylinder) (Safety Valve) (Optionals)
| 31***61 | Tipping Pipe, R.H | 1 |
| 31***62 | Tipping Pipe, L.H | 1 |
| 31***63 | Tipping Pipe | 2 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Steering Line) (2/2)
| 39***25 | Hose | 1 |
| 39***01 | Hose | 2 |
| 50***05 | Union | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Suction)
| 31***74 | Suction Flange | 1 |
| 31***43 | Aspiration Oil Tube | 1 |
| 31***44 | Union | 1 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hydraulic Tank
| 20***60 | Breather Plug | 1 |
| 31***48 | Breather Oil Container | 1 |
| 31***70 | Oil Filter Fastener | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Hydraulic Tank Hose Protection
| 31***99 | Hose Protection | 1 |
| 80***36 | Bolt | 2 |
| 80***03 | Spring Washer | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Shovel Control Assy (2/4)
| 84***13 | Gasket Kit | 1 |
| 84***23 | Locking Cover Kit (Orange) | 1 |
| 84***24 | Locking Cover Kit (Blue) | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Shovel Control Valve (1/4)
| 84***39 | Shovel Control Valve, Assembly | 1 |
| 84***11 | Big Plug | 1 |
| 84***13 | Gasket Kit | 1 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Shovel Control Valve (4/4) (Floating Lifting Element)
| 84***74 | Gasket Kit, Secondary Valve | 1 |
| 84***13 | Gasket Kit | 1 |
| 84***16 | Valve Kit | 2 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Shovel Control Valve (For Bucket 4 In 1) (1/5)
| 84***80 | Shovel Control Valve,Assembly | 1 |
| 84***11 | Big Plug | 1 |
| 84***13 | Gasket Kit | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Shovel Control Valve (For Bucket 4 In 1) (2/5)
| 84***13 | Gasket Kit | 1 |
| 84***23 | Locking Cover Kit (Orange) | 1 |
| 84***24 | Locking Cover Kit (Blue) | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Shovel Control Valve (For Bucket 4 In 1) (5/5)
| 84***74 | Gasket Kit, Secondary Valve | 1 |
| 84***13 | Gasket Kit | 1 |
| 84***16 | Valve Kit | 2 |
Komatsu : Wb150-2(S/N 150f10303-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 | 1 |
| 84***13 | Gasket Kit | 1 |
| 84***16 | Valve Kit | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Hydraulic System Work Equipment : Steering Wheel (Canopy)
| 31***50 | Stud Bolt Steering | 1 |
| 36***67 | Steering Wheel, Assembly | 1 |
| 80***25 | Screw | 4 |
Mark Plate
Komatsu : Wb150-2(S/N 150f10303-Up) : Mark Plate : Equipment
| 31***51 | Fastener | 1 |
| 31***50 | Pin | 1 |
| 31***50 | Protection | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Mark Plate : Stickers - Warning Plate (1/5)
| 30***91 | Mark Plate, California Battery | 1 |
| 31***12 | Plate, Hydraulic Transmission Scheme | 1 |
| 31***38 | Plate, 4 Wd | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Mark Plate : Stickers - Warning Plate (2/5)
| 31***04 | Plate, ''Air Recycle'' | 1 |
| 81***73 | Kit, Basic Sticker | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Mark Plate : Stickers - Warning Plate (3/5)
| (8***3) | Kit, Basic Sticker | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Mark Plate : Stickers - Warning Plate (4/5) (Only For Machine With Cabin)
| (8***3) | Kit, Basic Sticker | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Mark Plate : Stickers - Warning Plate (5/5) (Only For Machine With Canopy)
| (8***3) | Kit, Basic Sticker | 1 |
Komatsu : Wb150-2(S/N 150f10303-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 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Mark Plate : Tool Box
| 31***50 | Tool Box | 1 |
| 31***06 | Gasket | 1 |
| 33***67 | Gasket | 1 |
Work Equipment
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Arm And Bucket (Usa)
| 20***90 | Pin | 2 |
| 20***69 | Tie-Rod | 1 |
| 20***51 | Adapter (Welded) | 0 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Arm Cylinder
| 39***11 | Bushing | 1 |
| 39***12 | Cylinder | 1 |
| 39***11 | Rod | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Blade : Unit_01_of_02
| 31***50 | Blade | 1 |
| 80***13 | Bolt | 8 |
| 80***12 | Nut | 8 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Blade : Unit_02_of_02
| 31***50 | Blade | 1 |
| 80***99 | Bolt | 3 |
| 80***11 | Nut | 3 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Boom Cylinder
| 31***03 | Pipe Stopper | 1 |
| 39***07 | Plug | 1 |
| 39***14 | Bushing | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Boom Swing Cylinder
| 31***02 | Cylinder | 1 |
| 39***58 | Bushing | 1 |
| 39***17 | Boom Swing Cylinder Assembly., R.H | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Bracket And Boom (1/2)
| 31***24 | Support | 1 |
| 31***02 | Pin | 1 |
| 31***03 | Bushing | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Bracket And Boom (2/2)
| 31***57 | Cylinder | 1 |
| 31***25 | Union | 1 |
| 31***26 | Union | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Bracket For Bucket 4 In 1 (Optional)
| 31***03 | Blade | 1 |
| 31***04 | Blade | 2 |
| 80***84 | Screw | 16 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Bucket 4 In 1
| 31***54 | Tooth | 8 |
| 31***19 | Pin | 2 |
| 80***85 | Screw | 16 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Work Equipment : Bucket 4 In 1 Fast Coupling
| 31***54 | Tooth | 8 |
| 31***19 | Pin | 2 |
| 80***85 | Screw | 16 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Bucket Cylinder
| 39***12 | Cylinder | 1 |
| 39***12 | Shaft | 1 |
| 39***12 | Piston | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Fork (For Bucket 4 In 1)
| 31***17 | Plate | 4 |
| 31***55 | Support | 2 |
| 31***59 | Fork | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Fork (For Bucket)
| 31***51 | Bucket | 1 |
| 31***53 | Bucket With Fork, Assembly | 1 |
| 31***17 | Plate | 4 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Hammer M50 (1/3)
| 82***31 | M50 Hammer, Assembly | 1 |
| 82***33 | Chisel Point (Optional) | 1 |
| 82***38 | Flat Point (Optional) | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Hammer M50 (2/3)
| 82***54 | Fitting | 1 |
| 82***59 | Tie-Rod With Rubber | 4 |
| 82***60 | Nut | 4 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Hammer M50 (3/3)
| 82***61 | Adjuster Shim | 7 |
| 82***66 | Washer | 2 |
| 82***70 | Retainer | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Hammer M60 (1/3)
| 82***32 | M60 Hammer, Assembly | 1 |
| 82***34 | Chisel Point (Optional) | 1 |
| 82***45 | Flat Point (Optional) | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Hammer M60 (2/3)
| 82***63 | Screw | 1 |
| 82***64 | Sealing Ring | 1 |
| 82***74 | Tie-Rod With Rubber | 4 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Hammer M60 (3/3)
| 82***54 | Fitting | 2 |
| 82***58 | Spring | 2 |
| 82***61 | Adjuster Shim | 7 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Hand-Hammer Mod. Bbh31
| 20***32 | Delivery Fast Coupling Line | 1 |
| 20***72 | Discharge Fast Coupling Line | 1 |
| 31***01 | Support Plate | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Hand-Hammer Mod. Br-45
| 20***72 | Discharge Fast Coupling Line | 2 |
| 20***45 | Male Plug | 2 |
| 20***46 | Femal Plug | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Horizontal Outrigger
| 31***59 | Bearing Boom | 2 |
| 31***52 | Foot | 2 |
| 31***59 | Bearing Boom | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Horizontal Outrigger (With Rubber)
| 31***59 | Bearing Boom | 2 |
| 31***54 | Foot | 2 |
| 31***59 | Bearing Boom | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Horizontal Outrigger (With Rubber) (Optional)
| 31***59 | Bearing Boom | 2 |
| 31***55 | Foot | 2 |
| 31***56 | Rubberized Foot | 6 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Horizontal Outrigger Cylinder Protection
| 31***61 | Clamp | 2 |
| 31***62 | Protection | 2 |
| 31***29 | Plate | 4 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Jack (Quick Coupling For Bucket) (Optional)
| 20***19 | Cylinder | 1 |
| 50***13 | Piston | 2 |
| 50***14 | Piston Rod | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Jig Arm
| 20***02 | Lever, R.H | 1 |
| 20***03 | Lever, L.H | 1 |
| 31***00 | Pin | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Jig Arm Cylinder : Unit_01_of_02
| 39***12 | Cylinder Head | 1 |
| 39***12 | Cylinder | 1 |
| 39***14 | Rod | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Jig Arm Cylinder : Unit_02_of_02
| 31***63 | Clamp | 1 |
| 31***53 | Pipe | 1 |
| 31***54 | Pipe | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Quick Coupling Fork (Optional)
| 20***59 | Tooth | 2 |
| 31***53 | Frame | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Quick Hydraulic Coupling For Bucket (Optional)
| 20***82 | Jack | 1 |
| 31***59 | Total | 1 |
| 31***60 | Bucket | 1 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Work Equipment : Quick Mechanical Coupling For Bucket (Miller) (Optional)
| 20***90 | Pin | 2 |
| 31***50 | Support Lever | 1 |
| 80***18 | Pin, Cotter | 2 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Quick Mechanical Coupling For Bucket (Optional)
| 31***59 | Total | 1 |
| 31***61 | Lever, Assembly | 1 |
| 31***67 | Clousure | 1 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Work Equipment : Safety Stay For Loader Arm End
| 31***09 | Pin | 4 |
| 31***83 | Safety Attachment | 1 |
| 80***83 | Bolt | 4 |
Komatsu : Wb150-2(S/N 150f10303-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 : Wb150-2(S/N 150f10303-Up) : Work Equipment : Shovel Dumping Left Cylinder
| 39***13 | Bushing | 1 |
| 39***13 | Cylinder Head | 1 |
| 39***12 | Cylinder | 1 |
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Shovel Dumping Right Cylinder
Komatsu : Wb150-2(S/N 150f10303-Up) : Work Equipment : Shovel Lifting Cylinder
| 39***13 | Bushing | 1 |
| 39***11 | Cylinder Head | 1 |
| 39***12 | Cylinder | 1 |
WB150-2(S/N 150F10303-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 four characters of the serial number stamped on the plate (e.g., 150F).
| Prefix | Identifies | Notes |
|---|---|---|
| 150F | WB150-2 | Serial range 150F10303-Up. Factory parts catalog variants list this as a distinct catalog version from the 150F10001-Up and 150F10293-Up ranges. Shop manual coverage begins at 150F10293-Up, confirming this serial falls within the WB150-2 service scope. |
Frequently asked questions
What engine does the WB150-2 use?
The Komatsu WB150-2 uses a Komatsu S4D106-2SFA 4-cylinder turbocharged diesel engine.
What is the operating weight?
The operating weight is 19730 lbs (8949.4 kg), varying by configuration and attachments.
What model replaced the WB150-2?
The WB150-3 succeeded the WB150-2 in Komatsu's backhoe loader lineup.
What WB150-2(S/N 150F10303-Up) owners discuss
What is the typical hydraulic behavior of the WB150-2 regarding pump noise, and what is the most common non-pump cause?
Owners report hydraulic pump chattering and noise as a frequent symptom. While often mistaken for pump failure, the most common cause is a small crack in the hydraulic feeder hose to the pump, allowing air to enter the system. Verify the hose integrity before replacing the pump. Have your dealer verify the pressure readings and hose condition before proceeding with major component replacement. (Source: published references user reports on 2006 WB150 pump issues; Komatsu WB150 hydraulic troubleshooting guides.)
What are the known electrical and starting issues for this series?
Common electrical complaints include intermittent starting, dashboard failures, and random shutdowns. These are often triggered by faulty sensors or unstable power supplies. Check battery state of charge, terminals, and chassis grounds. A battery may show acceptable voltage until the starter is loaded; perform a load test if voltage collapses during cranking. (Source: Heavy Machinery Club diagnostic guides for Komatsu excavators/loaders; Komatsu WB150-2 service manual troubleshooting sections.)
How does the hydraulic system performance change with temperature, and what does this indicate?
Hydraulics may work normally when cold but become weak when hot. This pattern indicates excessive internal leakage in the hydraulic pump, main control valve, cylinders, or motors, which becomes more noticeable as oil viscosity decreases. Check hydraulic oil level, specification, and filter condition. Do not diagnose pump failure solely based on temperature behavior; measure performance cold and hot. (Source: Komatsu WB150-2 service manual; Heavy Machinery Club diagnostic tips.)
What are the typical undercarriage and wear patterns for this machine type?
The WB150-2 is a backhoe loader with a rear-wheel drive configuration. Standard tire sizes are Front: 14.0 x 17.5 10PR and Rear: 19.5L x 24.0 10PR. Wear patterns focus on tire condition, track tension (if equipped with optional tracks), and undercarriage rollers. Check for mud or debris packed into the undercarriage, which can cause pulling or uneven wear. (Source: published references for Komatsu WB 150-2; Komatsu WB150-2 service manual maintenance standards.)
What engine quirks or performance issues are associated with this series?
Engine performance issues dominate serious complaints, including loss of power under load, increased fuel usage, and overheating. Causes include dirty air filters, clogged fuel filters, restricted fuel tank venting, and damaged charge-air hoses. Komatsu engines are robust but sensitive to contamination and extended service intervals. Check air and fuel filters first if power drops during heavy digging. (Source: Heavy Machinery Club Komatsu excavator/loaders problems; Komatsu WB150-2 service manual.)
What is the standard operating weight and key dimensions for the WB150-2?
The standard operating weight is 18,875 lbs (8,560 kg). Operating length is 24 ft 1 in (0.03 m). Operating width is 7 ft 9 in (0.23 m). Operating height is 11 ft 11 in (0.28 m). Weights vary by configuration and attachments. (Source: VeriTread specs for Komatsu WB150; published references for Komatsu WB 150-2.)
What should be checked when buying a used WB150-2 (S/N 150F10303-Up)?
Verify the exact serial number against the correct service manual, as specifications vary by serial range. Check for hydraulic leaks, especially around the pump feeder hose. Test all hydraulic functions cold and hot to detect internal leakage. Inspect the battery, starter, and electrical grounds for intermittent starting issues. Confirm tire condition and undercarriage wear. Have your dealer verify the engine performance under load and hydraulic pressure settings. (Source: Komatsu WB150-2 service manual; published references buying advice; VeriTread specs.)
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 WB150-2(S/N 150F10303-Up). Related factory variants of the same model family:
WB150-2(S/N 150F10001-Up)WB150-2(S/N 150F10293-Up)
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