Komatsuwheel loadersmall ( - wa120 / sk*)

Komatsu WB97S-2(S/N 97SF10001-Up)

Maintenance schedule, common problems & OEM parts breakdown

Search live WB97S-2(S/N 97SF10001-Up) parts

The Komatsu WB97S-2 is a 4-wheel steering backhoe loader manufactured from 2000 to 2005. It is powered by a Komatsu S4D106-1FA turbocharged diesel engine producing 97.9 HP net (113 HP gross) at 2200 RPM. The machine has an operating weight of 17,640 lbs (8,001.4 kg) and a standard bucket capacity of 1.44 cu yds (1.1 m³). It features a full powershift transmission with 4WD and 4-wheel steering capabilities. Configurations offered include standard and extended reach loader arms, various bucket widths, and optional air conditioning. The WB97S-2 succeeded the WB97S-1 and was later replaced by the WB97S-5 series.

Across the WB97S series, Komatsu refined the hydraulic system efficiency and operator comfort while maintaining the robust S4D106 engine platform. The WB97S-2 matters in the used and parts market because its simple, mechanically controlled engine and transmission are easy to service and repair. The machine's 4-wheel steering configuration makes it highly valued for tight urban utility work. Parts availability remains strong due to the shared components with other Komatsu backhoe models, ensuring long-term support for this generation.

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 WB97S-2(S/N 97SF10001-Up) specifications

Engine

Model	S4D106-1FA
Gross Power	113 hp (84.3 kW)
Net Power	97.9 hp (73.0 kW)
Displacement	269.3 cu in (4413.0 cc)
Cylinders	4
Emissions Tier	Stage 2

Weights

Operating Weight	17640 lbs (8001.4 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	18.04 ft (5.5 m)
Transport Width	7.94 ft (2.42 m)
Transport Height	12.01 ft (3.66 m)
Wheelbase	7.14 ft (2.175 m)
Ground Clearance	1.42 ft (0.43 m)
Height to Top of Cab	9.03 ft (2.75 m)

Performance

Travel Speed (Forward)	24.9 mph (40.1 km/h)
Travel Speed (Reverse)	14.3 mph (23.0 km/h)
Lift Capacity at Full Height	8650 lbs (3923.6 kg)
Bucket Dig Force	8490 lbs (3851.0 kg)
Bucket Breakout Force	14349.6 lbs (6508.9 kg)
Dig Depth (Standard)	14.77 ft (4.5 m)
Dig Depth (Extended)	18.54 ft (5.65 m)
Gradeability	Not documented for this exact serial range — verify with your dealer

Service capacities (summary)

Fuel Tank	34.4 gal (130.2 l)
Hydraulic System	24.4 gal (92.4 l)
Engine Oil	2.3 gal (8.7 l)
Cooling System	4.8 gal (18.2 l)

Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.

WB97S-2(S/N 97SF10001-Up) fluids & capacities

System	Capacity	Recommended fluid
Engine crankcase (with filter)	8.7 L (2.3 US gal)	Komatsu EO or equivalent SAE 15W-40 (e.g., Ravenol Turbo Plus SHPD 15W-40)
Cooling system	18.2 L (4.8 US gal)	Komatsu Coolant or equivalent (e.g., Ravenol TTC Trad. Techn. Coolant Premix -40°C)
Fuel tank	130.2 L (34.4 US gal)	Diesel fuel
Transmission	16.3 L (4.3 US gal)	Komatsu TO or equivalent (e.g., Ravenol ATF Dexron D II)
Front axle	8.3 L (2.2 US gal)	Komatsu HO or equivalent (e.g., Ravenol STOU SAE 10W-40)
Rear axle	18.5 L (4.9 US gal)	Komatsu HO or equivalent (e.g., Ravenol STOU SAE 10W-40)
Hydraulic system and tank	92.4 L (24.4 US gal)	Komatsu HYDO or equivalent (e.g., Ravenol STOU SAE 15W-30)
Grease	N/A	Komatsu Grease or equivalent

Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.

Komatsu WB97S-2(S/N 97SF10001-Up) maintenance schedule

Service interval	Tasks
Every 10 h	Check engine oil level via dipstick and top up if necessary. Inspect hydraulic oil level in the reservoir and add Komatsu EO or equivalent if low. Check coolant level in the radiator and expansion tank; add Komatsu Super Coolant or equivalent if needed. Inspect fuel water separator and drain accumulated water and impurities. Verify tire pressure and inspect tires for cuts, bulges, or loose fasteners. Lubricate all grease points on the loader arm, bucket linkage, and backhoe linkage with Komatsu grease.
Every 250 h	Change engine oil and replace the engine oil filter element. Replace the hydraulic system oil filter cartridge and clean the magnetic rings on the filter cover. Replace the fuel filter element and bleed the fuel supply circuit to remove air. Inspect the drive belt tension and condition; adjust or replace if worn. Check the battery electrolyte level and terminal tightness; clean terminals if corroded. Inspect the air cleaner restriction indicator and clean or replace the primary filter element.
Every 500 h	Change the transmission oil and replace the transmission oil filter element. Change the front axle oil and replace the front axle oil filter element. Change the rear axle oil and replace the rear axle oil filter element. Inspect the brake pedal free play and adjust the brake linkage if necessary. Check the steering cylinder play and inspect steering ram seals for leaks. Inspect the radiator and A/C condenser fins; clean with low-pressure air or water if clogged.
Every 1,000 h	Inspect the injector assembly condition and adjust valve clearance if necessary. Check the alternator belt tension and inspect the alternator brushes. Inspect the starter motor operation and clean the battery terminals. Check the hydraulic hose condition for cracks, abrasion, or leaks and tighten fittings. Inspect the loader arm and backhoe frame for cracks or excessive wear at pivot points. Verify the operation of all safety lights, horns, and warning devices.
Every 2,000 h	Replace the engine coolant and flush the cooling system if contaminated. Inspect the turbocharger shaft play and housing for oil leaks or damage. Check the fuel injection pump timing and adjust if out of specification. Inspect the final drive oil level and condition; change if milky or contaminated. Check the steering system for proper crab steering operation and neutral return. Inspect the cab mounts and suspension for wear or excessive vibration.

Servicing the WB97S-2(S/N 97SF10001-Up) beyond the schedule

Predictive Maintenance & Fluid Analysis

Monitor engine oil pressure and hydraulic system relief valve pressure (2900 psi) regularly. Sample hydraulic oil every 500 hours to check for metal particles from the axial piston pump. Inspect the fuel water separator daily to prevent injector damage from water contamination. Track coolant pH levels to prevent corrosion in the S4D106-1FA engine block. Analyze transmission oil for gear wear indicators. Check the air restriction indicator for early signs of clogged filters.

Corrective & Common Repairs

Address rear steering ram locking issues by ensuring crab steering is only engaged at rest. Replace worn loader arm pivot pins and bushings to restore bucket breakout force. Fix hydraulic leaks at the pump shaft seal and cylinder rod seals. Replace the fuel filter and bleed the system if the engine stalls or runs irregularly. Repair the alternator belt tensioner if charging voltage drops below 12 V. Replace the brake pedal linkage if free play exceeds specifications.

Overhaul & Rebuild Points

Rebuild the S4D106-1FA engine at 10,000 hours or when compression drops below spec. Replace the turbocharger if shaft play exceeds limits or oil leaks are present. Overhaul the full powershift transmission if gear slippage occurs or oil contamination is high. Rebuild the hydraulic pump if flow drops below 43.6 GPM or pressure relief fails. Inspect the final drives for oil leaks and gear wear. Replace the starter motor if engagement is weak or noisy.

Seasonal & Environment Servicing

In cold weather, drain the fuel tank condensate to prevent freezing and use low-temperature fuel. Check the coolant freeze protection before winter. In dusty environments, clean the radiator and A/C condenser more frequently to prevent overheating. Inspect the cab filters and clean or replace them to maintain air quality. Use Komatsu Super Coolant or equivalent antifreeze rated for -40°C. Check the battery electrolyte level and charge state in extreme temperatures.

WB97S-2(S/N 97SF10001-Up) common service parts

Part number	Part	Notes
312613070	Oil Filter Fastener	Lubrication service	Check fitment →
YM119593-03100	Filter Breather	Scheduled service item	Check fitment →
312607632	Filter Support	Scheduled service item	Check fitment →
312649057	Filter	Scheduled service item	Check fitment →
312649058	Filter Support	Scheduled service item	Check fitment →

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WB97S-2(S/N 97SF10001-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 hardware or software failure	Replace or reprogram the ECM
CA441	Battery voltage too low	Weak battery, poor connections, or charging system failure	Replace the alternator or battery; check the voltage regulator
CA442	Battery voltage too high	Faulty voltage regulator or alternator	Replace the alternator or battery; check the voltage regulator
AA10NX	Air cleaner clogging	Dirty or blocked air filter element	Replace the air filter
B@BCNS	Engine coolant overheating	Low coolant, clogged radiator, or fan belt failure	Check radiator fins, fan belt, and coolant level
B@HANS	Hydraulic oil overheating	Contaminated oil, clogged filter, or cooler fan issue	Change hydraulic filter and oil; check cooler fan
AB00KE	Charge voltage too low	Alternator failure or loose belt	Replace the alternator or tighten the belt
CA122	Intake air pressure high voltage	Sensor malfunction or actual overpressure condition	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

Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.

WB97S-2(S/N 97SF10001-Up) attachments & work tools

Standard Loader Bucket

The factory standard bucket has a capacity of 1.1 m³ (1.44 cu yds) and a width of 242.1 cm (95.3 in). This configuration is specified for the WB97S-2 operating weight of 8001.4 kg (17640 lbs).

Backhoe Bucket

The rear digging assembly provides a standard dig depth of 457.2 cm (180 in) and a breakout force of 3851.0 kg (8490 lbs). Extended digging depth reaches 548.6 cm (216 in) with a corresponding increase in reach.

Hydraulic Coupler System

The machine utilizes a hydraulic quick-coupler system for front attachment changes. The hydraulic pump delivers 165.0 LPM (43.6 GPM) at a relief valve pressure of 199.9 bar (2900 psi) to operate these tools.

Loader Arm Configuration

The WB97S-2 employs a Z-bar linkage loader arm. This configuration provides a loading height of 365.8 cm (144 in) and a reach at load height of 243.8 cm (96 in).

Engine and Powertrain

The WB97S-2 (S/N 97SF10001-Up) is powered by a Komatsu S4D106-1FA turbocharged diesel engine producing 84.3 kW (113 HP) gross power. It features a full powershift transmission with 4WD and 4-wheel steering.

All WB97S-2(S/N 97SF10001-Up) assemblies by section

Every catalogued assembly group for the Komatsu WB97S-2(S/N 97SF10001-Up). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

Control System

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Control System : Backhoe Control Levers

31***04	Spacer	8
31***12	Connection L.H	1
31***13	Connection R.H	1
31***59	Control Valve Support	1

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Komatsu : Wb97s-2(S/N 97sf10001-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
31***23	Tie Rod	1

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Komatsu : Wb97s-2(S/N 97sf10001-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
31***23	Tie Rod	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Control System : Backhoe Control Pedal (Left Side)

31***61	Bushing, Pedal	1
31***63	Pedal Support	1
31***20	Pedal	1
80***09	Screw	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Control System : Backhoe Control Pedal (Left Side) - Komatsu Layout Control

31***61	Bushing, Pedal	1
31***20	Pedal	1
31***56	Pedal Support	1
80***09	Screw	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Control System : Backhoe Control Pedal (Right Side)

31***62	Bushing, Pedal	1
31***63	Pedal Support	1
31***21	Pedal	1
80***09	Screw	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Control System : Backhoe Control Pedal (Right Side) - Komatsu Layout Control

31***62	Bushing, Pedal	1
31***21	Pedal	1
31***57	Pedal Support	1
80***09	Screw	2

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Komatsu : Wb97s-2(S/N 97sf10001-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
31***02	Pin	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Control System : Fuel Control Lever

31***48	Command Boot	1
31***67	Lever Block	1
31***78	Assembly, Cable	1
31***21	Accelerator Lever	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Control System : Fuel Control Pedal

31***81	Support	1
31***58	Lever For Cable	1
31***70	Accelerator Pedal	1
31***71	Flask Pedal	1

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Komatsu : Wb97s-2(S/N 97sf10001-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
31***51	Lever, R.H	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Control System : Shovel Control Lever

31***04	Spacer	4
31***58	Pressure -Boot	1
31***66	Knob	1
31***54	Block	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Control System : Shovel Control Lever (Bucket 4 In 1)

31***04	Spacer	4
31***58	Pressure -Boot	1
31***66	Knob	1
31***54	Block	1

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Engine

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine : Camshaft & Driving Gear

YM***50	Bearing, Thrust	1
YM***00	Gear,Injection Pump Drive	1
YM***00	Gear	1
YM***00	Gear Ass'Y	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine : Cooling Water System

YM***10	Protector	1
YM***02	Screw	4
YM***40	Fan	1
YM***50	Pulley	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine : Crankshaft & Piston

YM***00	Connecting Rod, Assembly	4
YM***00	Assembly, Piston (+0.25 mm)	4
YM***80	Gear, Ring	1
YM***10	Bush,Idle Gear (Repair Part)	4

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine : Cylinder Block

YM***00	Screw	18
YM***20	Bolt	10
YM***40	Spring	2
YM***60	Cylinder Block, Assembly	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine : Cylinder Head

87***41	Turbo Engine, Assembly	1
YM***70	Cap Valve	8
YM***02	Bolt	1
YM***51	Cap, Lub. Oil Supply	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine : Engine Stop Device

YM***00	Pin, Cotter	2
YM***02	Nut	1
YM***40	Lever	1
YM***62	Bolt,(For Shipping)	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine : Exhaust Manifold & Silencer

YM***80	Packing	1
YM***02	Screw	2
YM***02	Screw	2
YM***02	Nut	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine : Feed Pump

YM***40	Gasket	4
YM***60	O-Ring	2
YM***00	Screw	1
YM***00	Spring	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine : Flywheel Housing & Oil Sump

YM***02	Screw	26
YM***20	Oil Sump	1
YM***80	Parallel Pin	2
YM***52	Screw	10

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Komatsu : Wb97s-2(S/N 97sf10001-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
YM***30	Shim, 1.050 mm	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine : Fuel Injection Pump (2/2)

YM***00	Segment	4
YM***40	Gasket	2
YM***00	Seat	4
YM***00	Screw	4

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine : Fuel Injection Valve

YM***20	Pipe	1
YM***40	Injection Pipe N. 4	1
YM***02	Bolt Plated	1
YM***20	Spring	4

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine : Fuel Line (1/2)

YM***10	Banjo Fitting	1
YM***80	Screw	1
YM***11	Clamp	2
YM***50	Pipe, Assembly	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine : Fuel Line (2/2)

YM***02	Screw	1
YM***22	Center Bolt	1
YM***00	Banjo Bolt	2
YM***02	Case Assembly	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine : Gasket Kit

YM***80	Packing	1
YM***00	O-Ring (Kit)	1
YM***40	O-Ring,Drain Plug	1
YM***01	Gasket (Kit)	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine : Gear Housing

YM***02	Bolt Plated	11
YM***51	Cap, Lub. Oil Supply	1
YM***02	Screw	6
YM***02	Screw	5

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine : Generator : Unit_02_of_02

YM***10	Pulley	1
YM***60	Spool & Housing	1
YM***20	Bolt Kit	1
YM***10	Bearing,Ball	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine : Generator : Unit_01_of_02

YM***20	Timer,Solenoid	1
YM***40	Distance Piece	1
YM***40	Screw	1
YM***30	Adjuster, Belt	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine : Governor (1/2)

YM***40	Screw	1
YM***00	Screw	1
YM***20	Support	1
YM***20	Capsule	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine : Governor (2/2)

YM***00	Gasket	1
YM***40	Screw	4
YM***20	Lever	1
YM***40	Ring, Snap	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine : Lubricating Oil Line

YM***60	Pipe	1
YM***81	Retainer	1
YM***50	Oil Pressure Transmitter	1
YM***00	Retainer	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine : Lubricating Oil System

YM***00	O-Ring (Kit)	1
YM***30	Shim, 1.000 mm	1
YM***00	Plug	1
YM***52	Screw	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine : Starting Motor

YM***30	Dust Cover Set	1
YM***71	Brush Holder Ass'Y	1
YM***10	Terminal Cover	1
YM***21	. Coil Assembly, Field	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine : Suction Manifold

YM***00	Heather Air	1
YM***02	Screw	1
YM***50	Joint	1
YM***02	Screw	9

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine : Turbocharger

YM***02	Nut	4
YM***90	Packing	1
YM***10	Turbine	1
YM***00	Spring Washer	4

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Engine Related Parts And Electrical System

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine Related Parts And Electrical System : Air Filter

31***93	Hose, Suction Air	1
31***17	Hose (Turbo Engine)	1
31***32	Filter Support	1
80***87	Bolt	4

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine Related Parts And Electrical System : Artic Version

31***70	Battery Cover	1
31***60	Battery Retainer	1
80***86	Washer	2
80***01	Spring Washer (With Stabilizers Only)	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine Related Parts And Electrical System : Battery Detachment

31***88	Terminal (+), Assembly	1
31***10	Switch Support	1
80***66	Bolt	2
80***87	Bolt	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine Related Parts And Electrical System : Electrical System (1/6)

31***57	Support	1
31***15	Wiring Harness, Assembly	1
80***08	Bolt (Only With Cabin)	3
80***02	Spring Washer	3

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine Related Parts And Electrical System : Electrical System (2/6)

31***66	Wiring Harness, Rear	1
31***68	Wiring, Electro-Valve Line	1
31***02	Wiring, 4ws	1
31***03	Wiring Extension	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine Related Parts And Electrical System : Electrical System (3/6)

31***70	Battery Cover	1
31***90	Terminal (-), Assembly	1
31***01	Terminal(+), Assembly	1
31***60	Battery Retainer	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine Related Parts And Electrical System : Electrical System (4/6)

31***01	Number Plate Support	2
80***86	Washer	2
80***27	Screw	4
80***45	Screw	6

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine Related Parts And Electrical System : Electrical System (5/6)

31***15	Wiring Harness, Assembly	1
80***44	Bolt	1
80***47	Bolt	1
80***43	Screw	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine Related Parts And Electrical System : Electrical System (6/6)

31***00	Acustic Alarm	1
31***00	Acustic Alarm Support	1
80***86	Washer	4
80***39	Screw	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine Related Parts And Electrical System : Engine And Drive Connection

20***08	Union	1
31***84	Level Pipe	1
31***85	Dip Oil Stick	1
31***34	Union	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine Related Parts And Electrical System : Engine Mounting Part

31***62	Right Support	1
31***63	Left Support	1
31***89	Motor Support	2
39***87	Washer	4

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine Related Parts And Electrical System : Front Dashboard (1/2)

31***12	Lower Cover	1
31***13	Upper Cover	1
31***45	Upper Cover	1
31***46	Lower Cover	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine Related Parts And Electrical System : Front Dashboard (2/2)

31***04	Front Dashboard, Assembly	1
31***00	Front Instrument Board	1
80***31	Self-Tapping Screw	4
80***38	Screw	4

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine Related Parts And Electrical System : Fuel Piping

80***84	Screw	1
80***88	Bolt (With Stabilizers Only)	2
80***08	Bolt (Only With Cabin)	4
80***01	Spring Washer (With Stabilizers Only)	3

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine Related Parts And Electrical System : Fuel Tank

31***92	Splash Guard	1
31***55	Level Indicator	1
31***59	Gas Oil Tank	1
31***67	Cover Battery Deck	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine Related Parts And Electrical System : Fuses Box

31***83	Box, Assembly	1
80***96	Bolt	2
80***33	Screw	5
80***05	Nut	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine Related Parts And Electrical System : Lateral Dashboard (1/2)

31***13	Lateral Dashboard, Assembly (For Cabin)	1
31***01	Lateral Instrument Board	1
80***31	Self-Tapping Screw	4
88***70	Block And Wrench	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine Related Parts And Electrical System : Lateral Dashboard (2/2)

31***54	Switch	1
31***55	Switch	1
31***56	Switch	1
88***44	Switch, Front Working Light	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine Related Parts And Electrical System : Muffler

30***55	Clamp (Aspirated Engine)	3
31***53	Hose	1
31***55	Stub Pipe	1
31***75	Protection Side Outward	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine Related Parts And Electrical System : Prefilter (Optional)

31***19	Gasket	1
31***43	Hood	1
31***36	Gasket	1
31***51	Extension	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine Related Parts And Electrical System : Radiator

31***11	Gasket	1
31***91	Radiator Support	2
31***92	Protection	1
31***90	Protection	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine Related Parts And Electrical System : Radiator Tank

31***69	Chamber	1
31***94	Upper Support	1
31***83	Hose	1
31***84	Hose	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Engine Related Parts And Electrical System : Self Supply Pump (Optional)

30***41	Pipe	1
31***90	Closure	1
31***49	Pin	1
31***50	Pump Support	1

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Frame

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Axle Lubricating Piping

39***45	Tube	1
39***58	Pipe	1
50***54	Union	2
50***52	Union	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Frame

31***56	Frame Vertical Outrigger	1
31***09	Gasket	1
31***06	Plate Fixing	2
31***25	Cover	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Front Axle (1/7)

20***29	Front Axle, Assembly	1
CA***75	Seal Ring	2
CA***70	Bush	2
CA***91	Thrust Washer	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Front Axle (2/7)

CA***10	Greaser Nipple	4
CA***78	Bush	4
CA***05	Bracket	1
CA***32	King Pin	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Front Axle (3/7)

CA***92	Collapsible Spacer	1
CA***90	Seal Ring	1
CA***50	Bearing	1
CA***91	Shim 3.00 mm	0

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Front Axle (4/7)

CA***80	Diff. Drive Plate	10
CA***67	Bearing	2
CA***69	Pin	1
CA***65	Differential Kit	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Front Axle (5/7)

CA***53	Lockring	8
CA***61	Double Joint	2
CA***23	Washer	2
CA***79	Thrust Washer	4

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Front Axle (6/7)

CA***90	Centering Bush	16
CA***70	Bearing	4
CA***06	Bolt	16
CA***86	Gear, Ring	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Front Axle (7/7)

CA***80	Oil Plug	2
CA***97	Bearing Needles	0
CA***14	Gear	6
CA***90	Screw	4

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Front Propeller Shaft And Front Axle Fixing

31***55	Shaft	1
80***56	Bolt	8
80***57	Bolt	4
80***31	Bolt	8

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Handbrake And Rfear Propeller Shaft

31***54	Shaft	1
31***75	Assembly, Cable	1
31***32	Fasterner Cable	2
80***56	Bolt	8

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Hydraulic Piping (Boom Locking)

39***13	Hose L=1150	1
39***22	Hose L=800	1
50***08	Elbow (For Hydraulic Lock)	2
50***05	Union	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Hydraulic Piping (Brake Line)

31***52	Tubo	1
31***53	Tube	1
31***56	Pipe	1
31***57	Pipe	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Hydraulic Piping (Transmission Cooling Line)

39***03	Hose	1
39***01	Hose	1
50***87	Union	1
50***64	Elbow	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Rear Axle (1/10)

20***30	Rear Axle, Assembly	1
CA***72	Brake Cylinder, R.H	1
CA***75	Seal Ring	2
CA***80	Oil Plug	3

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Rear Axle (10/10)

CA***08	Connector	1
CA***59	Snap Ring	1
CA***30	Washer	1
CA***97	Potentiometer	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Rear Axle (2/10)

CA***10	Greaser Nipple	3
CA***78	Bush	8
CA***06	Bolt	2
CA***32	King Pin	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Rear Axle (3/10)

CA***92	Collapsible Spacer	1
CA***90	Seal Ring	1
CA***50	Bearing	1
CA***91	Shim 3.00 mm	0

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Rear Axle (4/10)

CA***80	Diff. Drive Plate	10
CA***47	Bush	2
CA***67	Bearing	2
CA***69	Pin	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Rear Axle (5/10)

CA***84	Double Joint	2
CA***23	Washer	2
CA***79	Thrust Washer	4
CA***21	Spider	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Rear Axle (6/10)

CA***40	Brake Drive-Plate	2
CA***37	O-Ring	2
CA***48	Hub	2
CA***48	Self-Adjust Kit	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Rear Axle (7/10)

CA***61	Bush	2
CA***81	Spring, L.H	1
CA***38	Lock-Lever Bolt	2
CA***90	O-Ring	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Rear Axle (8/10)

CA***90	Centering Bush	16
CA***70	Bearing	4
CA***06	Bolt	16
CA***86	Gear, Ring	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Rear Axle (9/10)

CA***80	Oil Plug	2
CA***97	Bearing Needles	0
CA***14	Gear	6
CA***90	Screw	4

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Transmission (1/13)

20***61	Drive Shaft, Assembly	1
CA***22	Plug	3
CA***60	Copper Washer	3
CA***68	Breather Plug	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Transmission (10/13)

CA***90	Pump Assembly	1
CA***66	Oil Seal	1
CA***61	O-Ring	1
CA***03	Screw	6

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Transmission (11/13)

CA***71	Flange	1
CA***69	Flywheel Towing Plate	1
CA***50	Spring Washer	6
CA***42	Bolt	6

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Transmission (12/13)

CA***63	Electrovalve	2
CA***58	Gear Box Drive, Assembly	1
CA***52	Distributor	1
CA***45	Gasket	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Transmission (13/13)

CA***87	Sensor Gasket	1
CA***81	Washer	2
CA***87	Copper Washer	6
CA***95	Connection	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Transmission (2/13)

CA***90	Seal Ring	5
CA***86	Thrust Washer	2
CA***92	Gear	1
CA***24	Clutch Drive Plate	14

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Transmission (3/13)

CA***29	Bearing	1
CA***58	Gear	1
CA***87	Flange	1
CA***20	Plug	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Transmission (4/13)

CA***86	Thrust Washer	1
CA***90	Snap Ring	1
CA***20	Shim 0,1 mm	0
CA***09	Bearing	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Transmission (5/13)

CA***90	Seal Ring	1
CA***86	Seal Ring	2
CA***58	Oil Plug	1
CA***96	Spring	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Transmission (6/13)

CA***90	Seal Ring	2
CA***89	Phonic Wheel	1
CA***20	Shim 0,1 mm	0
CA***86	Seal Ring	3

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Transmission (7/13)

CA***17	Belleville Washer	1
CA***47	Lock-Spring Cover	1
CA***90	Bearing	1
CA***79	Spacer	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Transmission (8/13)

CA***99	Belleville Washer	6
CA***31	O-Ring	1
CA***09	Bearing	1
CA***42	Pin	3

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Transmission (9/13)

CA***95	Spacer	1
CA***13	Clutch Drive Plate	10
CA***90	Bearing	1
CA***34	Beaing	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Wheels

31***52	Front Rim	4
81***19	Tyre (16.9x24''-Pr 12)	4
84***01	Tyre (365/70 R18 Tl Spt9)	4

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Frame : Wheels (Optionals)

31***65	Rim	4
81***20	Tyre (16.9x28''- Pr 12)	4
84***01	Tyre (365/70 R18 Tl Spt9)	4

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Guard And Operator'S Cab

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Guard And Operator'S Cab : Cabin (1/11)

31***50	Operator?S Cab, Assembly	1
31***00	Cabin Structure	1
31***80	Glass Window, Lower	1
31***81	Glass Window, Upper	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Guard And Operator'S Cab : Cabin (10/11)

80***67	Bolt (Optional)	4
80***56	Bolt	4
80***60	Screw	2
80***50	Cover (2nd Version)	4

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Guard And Operator'S Cab : Cabin (11/11)

80***25	Screw	4
80***60	Screw	8
80***06	Washer, Spring	4
80***00	Washer (For Homologation Road)	12

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Guard And Operator'S Cab : Cabin (2/11)

80***86	Washer	4
80***00	Screw (Only For Germany)	4
80***56	Screw	2
80***08	Self-Locking Nut	4

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Guard And Operator'S Cab : Cabin (3/11)

80***70	Bolt	4
80***45	Screw	2
80***08	Nut (With Stabilizers Only)	4
80***51	Nut Cover	4

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Guard And Operator'S Cab : Cabin (4/11)

31***41	Cylinder	2
31***42	Spring	4
31***43	Pin	4
31***44	Bellows	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Guard And Operator'S Cab : Cabin (5/11)

80***48	Bolt	4
80***64	Screw	4
80***44	Screw	1
80***66	Self Taping Screw	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Guard And Operator'S Cab : Cabin (6/11)

80***60	Screw	4
80***06	Nut (2nd Version)	2
80***50	Cover (2nd Version)	2
80***12	Washer	2

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Guard And Operator'S Cab : Cabin (7/11)

80***64	Screw	2
80***64	Self Taping Screw	2
80***06	Spring Washer	2
80***00	Washer (For Homologation Road)	2

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Guard And Operator'S Cab : Cabin (8/11)

31***03	Canopy	1
31***50	Gasket	7
31***94	Front Gasket	1
31***95	Central Gasket	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Guard And Operator'S Cab : Cabin (9/11)

80***48	Screw	1
80***32	Self Taping Screw	8
80***56	Self Taping Screw	2
80***05	Self-Locking Nut	1

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-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
31***75	Resistor	1

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Komatsu : Wb97s-2(S/N 97sf10001-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
80***14	Hose-Clamp	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Guard And Operator'S Cab : Covers (1/3)

31***54	Hinge Linkage	1
31***84	Inspection Plug	1
31***99	Hood	1
31***96	Hood Crooked	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Guard And Operator'S Cab : Covers (2/3)

31***00	Front Closure	1
31***26	Support	1
31***32	Squab Panel	1
31***03	Ballast 310 Kg	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Guard And Operator'S Cab : Covers (3/3)

31***20	Right Closure (Cabin)	1
31***21	Left Closure (Cabin)	1
31***22	Right Cover (Cabin)	1
31***23	Left Cover (Cabin)	1

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Komatsu : Wb97s-2(S/N 97sf10001-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
31***15	Plug	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Guard And Operator'S Cab : Front Splash-Board (Optionals)

31***52	Pipe	2
31***53	Right Support	1
31***54	Left Support	1
31***07	Splash-Board	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Guard And Operator'S Cab : Heating System (1/2)

31***80	Wall	1
31***03	Cock Support	1
80***45	Screw	4
80***02	Spring Washer	4

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Komatsu : Wb97s-2(S/N 97sf10001-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
39***34	Union	1

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Komatsu : Wb97s-2(S/N 97sf10001-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
31***56	Lower Support	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Guard And Operator'S Cab : Motor Air Blending System (2/2)

31***09	Gasket	1
31***51	Compressor	1
31***57	Filter	1
31***58	Filter Support	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Guard And Operator'S Cab : Operator?S Seat

31***64	Box	1
31***66	Box	1
31***14	Operator'S Seat Stand	1
36***76	Operator'S Seat, Assembly	1

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Hydraulic System Work Equipment

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Adjustable Guide

31***07	Pin	1
31***50	Support	1
31***51	Stud Bolt Steering	1
36***67	Steering Wheel, Assembly	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Backhoe Control Valve (1/8)

84***24	Control Valve,Assembly	1
84***68	Inlet Element, Assembly	1
84***69	Block, Boom Control Assembly	1
84***70	Block, Boom Swing Control Assembly	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Backhoe Control Valve (2/8)

84***13	Gasket Kit	1
84***77	Pressure Relief Valve	1
84***78	Regolatore Di Flusso	1
84***79	Regulation Kit	1

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Komatsu : Wb97s-2(S/N 97sf10001-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
84***17	Operating Kit	1

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Komatsu : Wb97s-2(S/N 97sf10001-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
84***17	Operating Kit	1

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Komatsu : Wb97s-2(S/N 97sf10001-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
84***19	Gasket Kit	1

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Komatsu : Wb97s-2(S/N 97sf10001-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
84***17	Operating Kit	1

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Komatsu : Wb97s-2(S/N 97sf10001-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
84***17	Operating Kit	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Backhoe Control Valve (8 Section)

84***28	Control Valve, Assembly	1
84***68	Inlet Element, Assembly	1
84***69	Block, Boom Control Assembly	1
84***70	Block, Boom Swing Control Assembly	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Backhoe Control Valve (8/8)

84***52	Valve Kit	1
84***53	Solenoid	1
84***54	Valve, Assembly	1
84***80	Housing	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Backhoe Control Valve (For Deportable)

84***74	Gasket Kit, Secondary Valve	2
84***13	Gasket Kit	1
84***16	Valve Kit	2
84***17	Operating Kit	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Backhoe Control Valve (For Hammer)

84***74	Gasket Kit, Secondary Valve	2
84***13	Gasket Kit	1
84***16	Valve Kit	2
84***17	Operating Kit	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Backhoe Control Valve (For Telescopic)

84***74	Gasket Kit, Secondary Valve	2
84***13	Gasket Kit	1
84***16	Valve Kit	2
84***17	Operating Kit	1

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Komatsu : Wb97s-2(S/N 97sf10001-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
20***62	Plug (For Hand Hammer)	2

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Komatsu : Wb97s-2(S/N 97sf10001-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
20***62	Plug (For Hand Hammer)	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Control Valve (7 Section) (For Deportable)

84***27	Control Valve, Assembly	1
84***68	Inlet Element, Assembly	1
84***69	Block, Boom Control Assembly	1
84***70	Block, Boom Swing Control Assembly	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Control Valve (7 Sections) (For Hammer)

84***26	Control Valve, Assembly	1
84***68	Inlet Element, Assembly	1
84***69	Block, Boom Control Assembly	1
84***70	Block, Boom Swing Control Assembly	1

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Control Valve (7 Sections) (For Jig Arm)

84***25	Control Valve, Assembly	1
84***62	Tie Rods Kit	1
84***68	Inlet Element, Assembly	1
84***69	Block, Boom Control Assembly	1

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Floor Board Hydraulic Tank

31***19	Splash Guard	1
31***76	Hinge	1
31***61	Floor Board	1
80***08	Bolt (Only With Cabin)	3

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Komatsu : Wb97s-2(S/N 97sf10001-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
85***18	O.Ring	3

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hammer Hydraulic Piping With Jig Arm (2/2)

31***50	Pipe	1
31***51	Pipe	1
39***07	Hose	1
39***23	Hose	1

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Arm And Bucket Cylinder Line) (For Side Digging Boom

31***58	Pipe	1
31***57	Pipe	1
31***59	Pipe, R.H	1
31***60	Pipe, L.H	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Arm Cylinder Line)

31***17	Pin	1
31***21	Bushing	2
39***67	Pin	1
39***12	Hose	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Arm Cylinder Line) (Safety Valve)

31***65	Pipe	1
31***71	Union	1
31***72	Pipe	1
31***02	Valve Support	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Boom Cylinder Line)

31***11	Pin	1
31***41	Buckle	2
31***42	Plate	1
33***53	V-Belt	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Boom Cylinder) (Safety Valve)

31***60	Pipe	1
31***61	Pipe	1
31***62	Pipe, R.H	1
31***63	Pipe, L.H	1

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Boom Swing Cylinder Line)

31***00	Support	4
31***08	Semibuckle	8
39***62	Pin	2
39***03	Hose	2

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Bucket - 4 In 1 Cylinder Line) (1/2)

31***52	Pipe, R.H	1
31***53	Pipe, L.H	1
31***00	U-Bolt	6
39***05	Hose	2

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Bucket - 4 In 1 Cylinder Line) (2/2)

31***78	Pin	2
31***79	Pin	2
31***55	Bucket 4 In 1, Assembly	1
39***44	Hose For Bucket L=1900 mm	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Bucket Cylinder Line) (1/2)

31***21	Bushing	2
39***13	Hose	2
50***13	Union	2
85***18	O.Ring	1

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Bucket Cylinder Line) (2/2)

31***58	Plate	1
31***05	Hose-Clamp	1
31***02	Bracket	1
31***65	Pipe	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Bucket Cylinder Line) (For Jig Arm)

31***55	Pipe, R.H	1
31***56	Pipe, L.H	1
31***57	Pipe	1
31***58	Pipe	1

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Delivery Line)

20***90	Pressure Take-Up	1
31***72	Pipe	1
39***13	Hose	1
39***14	Hose	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Hammer Line) (1/3)

39***09	Hose	1
39***13	Hose	1
50***06	Plug	1
50***13	Union	1

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Hammer Line) (2/3)

31***54	Extension	1
31***21	Bushing	2
39***06	Hose	1
39***08	Hose	1

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Komatsu : Wb97s-2(S/N 97sf10001-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
39***06	Hose	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Jig Arm Cylinder Line)

31***21	Bushing	2
39***16	Hose	1
39***02	Hose	2
58***11	Union	2

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Locker Cylinder Line)

31***51	Jack	4
31***00	Liner	1
31***02	Piston	1
31***74	Tube	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Oil Cooler And Return Line) (1/2)

31***62	Pipe	1
31***70	Support	1
31***14	Union	1
39***01	Hose	1

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Oil Cooler And Return Line) (2/2)

31***17	Union	1
31***41	Protection	1
39***01	Hose	1
39***02	Hose	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Ride Control) (1/2) (Optional)

31***00	Union	1
31***01	Support	1
31***02	Support	1
39***47	Union	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Ride Control) (2/2) (Optional)

39***47	Union	1
39***19	Hose	1
39***25	Hose	1
39***36	Hose	1

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-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
50***14	Union	1

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Shovel Lifting Cylinder Line) (1/2)

31***57	Pipe	1
31***58	Pipe	1
31***63	Support	1
31***07	Plate Fixing Tube	2

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Shovel Lifting Cylinder Line) (2/2)

20***70	Buckle	4
31***65	Pin ? 50	2
31***13	Pin ? 45	2
31***65	Pipe	2

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Shovel Lifting Cylinder) (Electric Safety Valve)

20***70	Buckle	2
31***00	Fastener	2
31***01	Plate	2
31***78	Pipe	2

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-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
31***59	Lifting Pipe	2

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Shovel Tipping Cylinder Line) (1/2)

31***59	Pipe	1
31***60	Pipe	1
31***64	Buckle	2
36***11	Protection	2

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Shovel Tipping Cylinder Line) (2/2)

31***05	Hose-Clamp	1
31***07	Gasket	1
31***65	Pin ? 50	2
31***13	Pin ? 45	2

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Shovel Tipping Cylinder Line) (With Return To Dig)

31***05	Hose-Clamp	1
31***07	Gasket	1
31***65	Pin ? 50	2
31***13	Pin ? 45	2

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-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
31***76	Pipe	1

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Shovel Tipping Cylinder) (Safety Valve)

31***50	Valve Support	2
31***61	Tipping Pipe, R.H	1
31***62	Tipping Pipe, L.H	1
31***63	Tipping Pipe	2

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Side Digging Boom Cylinder Line)

39***02	Hose	1
39***03	Hose	1
50***23	Union	2
85***12	O-Ring	1

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Steering Line) (1/3)

20***90	Pressure Take-Up	1
30***38	Retainer	2
31***50	Stud Bolt Steering	1
31***08	Flange	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Steering Line) (2/3)

31***41	Protection	2
39***01	Hose	1
39***31	Hose	1
39***04	Hose	1

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Steering Line) (3/3)

31***01	Support	1
39***30	Hose	2
50***04	Union	4
50***73	Elbow	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Suction)

20***70	Plug (Only For Disconnecting Hammer)	1
31***50	Suction Flange	1
31***53	Tubo	1
31***55	Tubo	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Piping (Vertical Outrigger Cylinder Line)

31***66	Tube	1
31***67	Tube	1
31***68	Tube	1
31***69	Tube	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Pump (1/2)

84***98	Pump Assembly	1
84***23	Control Unit	1
84***25	Shaft	1
84***28	O-Ring	4

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Pump (2/2)

84***17	Pilot Valve	1
84***18	Pilot Valve	1
84***19	Valve Plate	1
84***20	Pipe	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Hydraulic Tank

20***40	Indicator Oil Level	1
20***60	Breather Plug	1
31***48	Breather Oil Container	1
31***70	Oil Filter Fastener	1

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Shovel Control Valve (1/4)

84***30	Shovel Control Valve,Assembly	1
84***11	Big Plug	1
84***09	Inlet Element, Assembly	1
84***10	Block, Shovel Lifting, Assembly	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Shovel Control Valve (2/4)

84***04	Piston Kit	1
84***08	Spool Return Unit	1
84***09	Plug	1
84***10	Shuttle Valve Kit	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Shovel Control Valve (3/4)

84***13	Gasket Kit	1
84***16	Valve Kit	2
84***19	Gasket Kit	1
84***25	Cover Kit Seal Kit	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Shovel Control Valve (4/4)

84***74	Gasket Kit, Secondary Valve	2
84***13	Gasket Kit	1
84***16	Valve Kit	2
84***19	Gasket Kit	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Shovel Control Valve (For Bucket 4 In 1) (1/5)

84***65	Shovel Control Valve,Assembly	1
84***11	Big Plug	1
84***63	Floating Block, Shovel Lifting, Assembly	1
84***64	Block, Bucket Control, Assembly	1

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Komatsu : Wb97s-2(S/N 97sf10001-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
84***10	Shuttle Valve Kit	1

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Shovel Control Valve (For Bucket 4 In 1) (3/5)

84***13	Gasket Kit	1
84***16	Valve Kit	2
84***17	Operating Kit	1
84***19	Gasket Kit	1

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Shovel Control Valve (For Bucket 4 In 1) (4/5)

84***74	Gasket Kit, Secondary Valve	2
84***13	Gasket Kit	1
84***16	Valve Kit	2
84***19	Gasket Kit	1

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-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
84***19	Gasket Kit	1

See all parts with full part numbers in Heavy Parts AI →

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Shovel Control Valve (For Bucket 4 In 1) (With Return To Dig)

84***33	Shovel Control Valve,Assembly	1
84***11	Big Plug	1
84***63	Floating Block, Shovel Lifting, Assembly	1
84***64	Block, Bucket Control, Assembly	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Shovel Control Valve (With Return To Dig) (1/4)

84***31	Shovel Control Valve,Assembly	1
84***11	Big Plug	1
84***63	Floating Block, Shovel Lifting, Assembly	1
84***66	Block, Shovel Dumping, Assembly (With Return To Dig)	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Shovel Control Valve (With Return To Dig) (2/4)

84***04	Piston Kit	1
84***08	Spool Return Unit	1
84***09	Plug	1
84***10	Shuttle Valve Kit	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Shovel Control Valve (With Return To Dig) (3/4)

84***13	Gasket Kit	1
84***16	Valve Kit	2
84***17	Operating Kit	1
84***19	Gasket Kit	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Shovel Control Valve (With Return To Dig) (4/4)

84***74	Gasket Kit, Secondary Valve	2
84***13	Gasket Kit	1
84***16	Valve Kit	2
84***19	Gasket Kit	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Vertical Outrigger Cylinder : Unit_02_of_02

39***11	Cylinder	1
39***11	Rod	1
3F***06	Piston	1
50***57	Head, Cylinder	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Hydraulic System Work Equipment : Vertical Outrigger Cylinder : Unit_01_of_02

39***11	Cylinder	1
39***11	Rod	1
3F***06	Piston	1
50***57	Head, Cylinder	1

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Mark Plate

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Mark Plate : Accessories For Germany (20 And 40 Km/H) (1/2)

31***53	Arm For Right Mirror	1
31***41	Oil Tank	1
86***04	Fitting (Only For Germany)	2
86***06	Discharge Valve	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Mark Plate : Accessories For Germany (20 And 40 Km/H) (2/2)

31***55	Arm	1
31***57	Frame	1
31***06	Bucket	1
31***07	Quick Mechanical Coupling For Buket	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Mark Plate : Accessories For Germany (20 Km/H Version)

81***81	Plate, Max. Speed 20 Km/H (Germany)	3
CA***00	Gear Box Drive, Assembly	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Mark Plate : Accessories For Germany (40 Km/H Version)

31***02	Number Plate Support	1
31***00	Plate, 40 Km/H Speed	3
80***45	Screw	4
80***50	Screw	4

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Mark Plate : Equipment

31***55	Washer	2
31***51	Fastener	1
31***26	Pin	1
31***51	Fastener	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Mark Plate : Equipment For Germany

80***82	Bolt	8
80***01	Spring Washer (With Stabilizers Only)	8
82***28	Warning Triangle	1
82***52	First-Aid Box	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Mark Plate : Stickers - Warning Plate (1/3)

31***01	Plate, Lubricating Points	1
31***25	Plate,Arm Swing/ Boom Controls (Only For Machine W	1
31***26	Plate, Raising Capacity (Side Digging+Std/Telesc.)	1
81***24	Kit, Basic Stickers	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Mark Plate : Stickers - Warning Plate (2/3)

31***13	Plate, Hydraulic Transmission Scheme	1
31***40	Plate, Arm Controls	1
31***41	Plate, Bucket 4 In 1 Positioning	1
31***90	Plate, Fork Positioning (Only For Italian Market)	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Mark Plate : Stickers - Warning Plate (3/3)

30***85	Mark Plate, Danger Pressure	1
31***35	Plate, Multifunctional Control	1
31***04	High Pressure (Lss)	2
35***28	Plate, Shovel Lock (Only For Germany)	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Mark Plate : Tool

82***43	Filter Cartridge Wrench	1
82***52	Box Wrench (32 mm)	1
82***54	Lever	1
82***55	Extension	1

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Work Equipment

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Work Equipment : Arm And Bucket

20***90	Pin	2
20***69	Tie-Rod	1
31***52	Corner, R.H	1
31***53	Corner, L.H	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Work Equipment : Arm Cylinder

39***11	Bushing	1
39***13	Cylinder	1
39***11	Rod	1
39***11	Piston	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Work Equipment : Arm Cylinder (For Side Digging Boom)

39***11	Bushing	1
39***11	Cylinder	1
39***15	Piston Rod	1
39***11	Piston	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Work Equipment : Blade : Unit_01_of_02

31***51	Blade	1
80***13	Bolt	8
80***12	Nut	8

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Work Equipment : Blade : Unit_02_of_02

31***51	Under Tooth Blade	1
80***99	Bolt	3
80***11	Nut	3

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Work Equipment : Boom Cylinder

31***03	Pipe Stopper	1
39***07	Plug	1
39***14	Bushing	2
39***01	Brake Pin	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Work Equipment : Boom Swing Cylinder

31***02	Cylinder	1
39***58	Bushing	1
39***12	Cylinder, Right	1
39***12	Cylinder , Left	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Work Equipment : Bracket And Boom (1/2)

31***51	Support	1
31***52	Bracket	1
31***56	Bracket	1
31***08	Plate	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Work Equipment : Bracket And Boom (2/2)

31***55	Support	1
31***56	Fastener	1
31***57	Cylinder	1
31***25	Union	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Work Equipment : Bucket - 4 In 1

31***54	Tooth	8
31***77	Pin	2
31***26	Protection	2
31***27	Blade	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Work Equipment : Bucket - 4 In 1 - Fast Coupling

31***54	Tooth	8
31***77	Pin	2
31***26	Protection	2
31***27	Blade	1

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Komatsu : Wb97s-2(S/N 97sf10001-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
31***01	Piston	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Work Equipment : Bucket Cylinder

39***11	Cylinder	1
39***12	Shaft	1
39***12	Piston	1
39***14	Cylinder Head	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Work Equipment : Fork (For Bucket 4 In 1)

31***58	Bucket 4 In 1 With Fork, Assembly	1
31***50	Rod	2
31***51	Fork	2
31***09	Pin	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Work Equipment : Fork (For Bucket)

31***52	Bucket	1
31***54	Bucket With Fork, Assembly	1
31***51	Fork	2
31***54	Support	2

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Komatsu : Wb97s-2(S/N 97sf10001-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
82***39	Pyramid Point (Optional)	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Work Equipment : Hammer M50 (2/2)

82***54	Fitting	1
82***55	Retainer	2
82***56	Pin	2
82***57	Spring Pin	2

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Komatsu : Wb97s-2(S/N 97sf10001-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
82***46	Pyramid Point (Optional)	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Work Equipment : Hammer M60 (2/2)

82***54	Fitting	2
82***58	Spring	2
82***61	Adjuster Shim	10
82***63	Screw	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Work Equipment : Jack (Quick Coupling For Bucket) (Optional)

20***19	Cylinder	1
50***13	Piston	2
50***14	Piston Rod	2
50***58	Fork	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Work Equipment : Jig Arm

Komatsu : Wb97s-2(S/N 97sf10001-Up) : Work Equipment : Jig Arm Cylinder : Unit_01_of_02

20***08	Piston Rod	1
39***12	Cylinder Head	1
39***16	Piston	1
39***02	Cylinder	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Work Equipment : Jig Arm Cylinder : Unit_02_of_02

31***56	Clamp	1
31***53	Pipe	1
31***54	Pipe	1
31***63	Clamp	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Work Equipment : Quick Hydraulic Coupling For Bucket (Optional)

20***82	Jack	1
31***59	Total	1
31***47	Closure	1
31***48	Pin	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Work Equipment : Quick Hydraulic Coupling For Bucket 4 In 1 (Optional)

20***82	Jack	1
31***59	Total	1
31***47	Closure	1
31***48	Pin	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Work Equipment : Quick Mechanical Coupling For Bucket (Optional)

31***59	Total	1
31***61	Lever, Assembly	1
31***67	Clousure	1
31***74	Bucket	1

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Komatsu : Wb97s-2(S/N 97sf10001-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
31***02	Lever	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Work Equipment : Shovel Bucket And Arm

31***54	Tooth	8
31***65	Pin ? 50	2
31***52	Arm	1
31***00	Lever	4

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Work Equipment : Shovel Dumping Cylinder

39***13	Bushing	1
39***13	Cylinder Head	1
39***12	Cylinder	1
39***13	Rod	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Work Equipment : Shovel Lifting Cylinder

39***13	Bushing	1
39***11	Cylinder Head	1
39***12	Cylinder	1
39***13	Rod	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Work Equipment : Side Digging Boom

20***79	Pin	1
20***30	Articulation	1
20***75	Support	1
31***50	Bracket, Assembly	1

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Work Equipment : Side Digging Boom Cylinder

20***40	Side Digging Boom Cylinder, Assembly	1
20***20	Cylinder	1
20***80	Piston Rod	1
20***80	Pin	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Work Equipment : Vertical Outrigger

20***16	Outrigger	2
31***53	Plate	4
31***50	Foot	2
31***63	Foot	2

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Komatsu : Wb97s-2(S/N 97sf10001-Up) : Work Equipment : Vertical Outrigger (With Rubber)

20***16	Outrigger	2
20***52	Rubber (Optional)	2
31***53	Plate	4
31***53	Plate	2

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WB97S-2(S/N 97SF10001-Up) serial number reference

The serial 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., 97SF).

Prefix	Identifies	Notes
97SF	WB97S-2	Serial prefix 97SF identifies the WB97S-2. The WB97S-2 uses the Komatsu S4D106-1FA engine. Build years approximately 2000–2005. Verify with dealer for exact end of range.

Frequently asked questions

What engine does the Komatsu WB97S-2 use?

The Komatsu WB97S-2 uses a Komatsu S4D106-1FA turbocharged diesel engine with 4 cylinders, producing 97.9 HP net (73.0 kW) at 2200 RPM.

What is the operating weight of the Komatsu WB97S-2?

The operating weight of the Komatsu WB97S-2 is 17,640 lbs (8,001.4 kg), varies by configuration/series.

What model replaced the Komatsu WB97S-2?

The Komatsu WB97S-5 replaced the WB97S-2 series, featuring updated emissions compliance and refined hydraulic systems.

What WB97S-2(S/N 97SF10001-Up) owners discuss

What engine powers the Komatsu WB97S-2 (S/N 97SF10001-Up) and what are its key specifications?

The Komatsu WB97S-2 (S/N 97SF10001-Up) is powered by a Komatsu 4D106E turbocharged diesel engine. It delivers 97.8 HP (73 kW) at 2,200 rpm and meets Stage 2 emissions standards. The engine features a 4-cylinder configuration with a displacement of 6.46 liters. This engine is known for robust low-end torque suitable for backhoe loader applications, though it requires strict adherence to Komatsu EO or equivalent high-quality diesel oil specifications for longevity. Variations in torque and output may exist depending on the specific regional emissions package installed at the factory. Have your dealer verify the exact engine plate data against the serial number to confirm the specific turbocharger and injection pump configuration.

What are the common powertrain and transmission behaviors reported for this model?

The WB97S-2 utilizes a full powershift transmission with electronic control and 4-wheel drive. Operators and mechanics frequently report that the transmission relies heavily on the integrity of the electronic control unit (ECU) located near the steering column. A common failure mode involves the transmission controller failing, which results in a loss of forward and reverse drive despite the engine running normally. The hydraulic motor for the transmission is variable displacement, and while the gear ratios themselves are robust, the electronic switching between speeds can be erratic if the controller or associated sensors fail. The transmission fluid capacity and type must be verified per the factory spec sheet, as using incorrect fluid can exacerbate shifting issues.

What electrical or sensor issues are typical for the WB97S-2?

Electrical faults are a primary source of downtime for this machine. The most prevalent issue is the failure of the transmission controller, which triggers error codes such as E1 or P6 and disables drive functions. Another common fault involves the seat weight sensor; if the wiring to the seat is damaged or the sensor fails, the machine will not engage drive to prevent accidental movement when the operator is not seated. Additionally, joystick potentiometer circuits can fail, displaying error messages like 'POTENCIOMETRO POSTERIORE CIRCUITO APERTO' (Rear Potentiometer Open Circuit), which disrupts hydraulic control. The blinking key symbol at the coupling glove often indicates a safety interlock fault related to these sensors or the transmission controller.

What wear patterns are typical for the undercarriage and hydraulic components?

As a wheeled backhoe loader, the WB97S-2 does not have a tracked undercarriage, but the wheel hubs and final drives are subject to significant wear. Mechanics note that the axle oil amount and condition are critical; leaks from axle seals can lead to gear failure. The hydraulic system, featuring a variable displacement axial piston pump, is generally reliable but sensitive to fluid contamination. The hydraulic oil cooler (core size 427 x 518 x 50 mm) is a known wear item; clogging or internal leakage can cause overheating and reduced hydraulic performance. The stabilizer legs and their cylinders are also high-wear points due to the static loads imposed during digging operations.

What are the known quirks of the engine series in this generation?

The 4D106E engine in the WB97S-2 is a mechanically controlled diesel engine (pre-Tier 3 common rail). A known quirk is its sensitivity to fuel quality and filter condition; clogged fuel filters can cause hard starting or power loss. The turbocharger (RHB5 type) is robust but can suffer from oil starvation if the engine oil change intervals are exceeded or if the oil viscosity is incorrect. The engine does not use DEF (Diesel Exhaust Fluid) or complex after-treatment systems, making it simpler to maintain than later models, but it requires careful monitoring of the injection pump timing and valve clearances to maintain the specified 97.8 HP output. Engine oil capacity and filter specifications vary by configuration; consult the operation and maintenance manual for exact values.

What should be checked when buying a used WB97S-2 (S/N 97SF10001-Up)?

When inspecting a used WB97S-2, prioritize the following: 1) Verify the serial number matches the 97SF10001-Up range to ensure correct parts availability. 2) Test the transmission controller by attempting to engage drive in both forward and reverse; look for error codes E1 or P6 on the display. 3) Check the seat sensor wiring for damage or corrosion, as a faulty sensor will prevent drive engagement. 4) Inspect the joystick potentiometers for smooth operation and check for error codes related to hydraulic control. 5) Verify the engine oil and hydraulic oil conditions for metal particles or fuel dilution. 6) Check the axle seals for leaks, as axle oil loss is a common failure point. 7) Confirm the operation of the stabilizer legs and their cylinders.

What safety-critical fixes or inspections are recommended for this machine?

Safety-critical items include the seat weight sensor and the transmission interlock system. If the seat sensor fails or is bypassed, the machine may move unexpectedly when the operator is not seated, posing a severe crush hazard. The transmission controller must be functional to ensure the machine cannot be driven if a fault is detected. The stabilizer legs must be fully extended and locked before any digging or loading operations to prevent tipping. The hydraulic system pressure relief valves must be set to factory specifications to prevent hose bursts or component failure. Have your dealer verify the calibration of the seat sensor and the transmission controller safety logic before operating the machine.

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 WB97S-2(S/N 97SF10001-Up). Related factory variants of the same model family:

WB97S-2(S/N 97SF10431-Up)WB97S-2(S/N 97SF10281-Up)

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