Komatsuwheel loadersmall ( - wa120 / sk*)
Komatsu WA75-3(S/N HA950857-HA951433 & H21408-UP; WA85-3 S/N HA960166-HA960218 & H20219-UP)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu WA75-3 is a compact wheel loader manufactured from 1998 to 2004, succeeding the WA75-2 and preceding the WA75-4. It is powered by a 4-cylinder Komatsu 4D98E engine producing 57 hp (42.5 kW) at 2500 rpm. The machine weighs approximately 10,690 lbs (4,849 kg) and features a hydrostatic transmission with a closed hydraulic circuit. Configurations include standard ROPS cabs, quick hitch mechanisms, and optional 30 km/h travel speeds for specific serial ranges.
Across its production run, the WA75-3 introduced emissionized engines and improved operator comfort with rounded rear designs for better visibility. The model remains significant in the used market due to its durable 4D98E engine and robust hydrostatic drive system. Parts availability is supported by distinct catalog variants for different serial prefixes, ensuring accurate component sourcing for maintenance and repair.
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 WA75-3(S/N HA950857-HA951433 & H21408-UP; WA85-3 S/N HA960166-HA960218 & H20219-UP) specifications
Engine
| Model | 4D 98E |
| Number of Cylinders | 4 |
| Displacement | 202.5 cu in (3318 cc) |
| Net Power | 57 hp (42.5 kW) |
| Power Measured At | 2500 rpm |
| Max Torque | 154.9 lb ft (210.0 N·m) |
| Torque Measured At | 1600 rpm |
Weights
| Operating Weight | 10692.5 lb (4848.9 kg) |
| Static Tipping Weight | 8267.4 lb (3751.2 kg) |
Dimensions
| Length With Bucket On Ground | 17.69 ft (5.39 m) |
| Height To Top Of Cab | 8.7 ft (2.65 m) |
| Wheelbase | 6.57 ft (2.00 m) |
| Ground Clearance | 1.51 ft (0.46 m) |
| Hinge Pin - Max Height | 10.52 ft (3.21 m) |
| Reach At Max Lift And Dump | 2.92 ft (0.89 m) |
| Dump Clearance At Max Raise | 8.42 ft (2.57 m) |
| Bucket Width | 6.4 ft (1.95 m) |
| Bucket Capacity - Heaped | 1.05 yd3 (0.80 m3) |
| Breakout Force | 10925.72 lb (4956 kg) |
Performance
| Transmission Type | Hydrostatic |
| Number Of Forward Gears | 2 |
| Number Of Reverse Gears | 2 |
| Max Speed - Forward | 12.5 mph (20.1 km/h) |
| Turning Radius | 12.4 ft (3.78 m) |
| Rear Axle Oscillation | 24 degrees |
| Pump Flow Capacity | 17 gal/min (64.4 L/min) |
| Relief Valve Setting | 2973.3 psi (205.0 bar) |
| Raise Time | 4.9 sec |
| Dump Time | 1 sec |
| Lower Time | 2.6 sec |
Service capacities (summary)
| Fuel Tank | 23.8 gal (90.1 L) |
| Hydraulic System | 25.1 gal (95.0 L) |
| Engine Oil | 2.5 gal (9.5 L) |
| Cooling System | 3.3 gal (12.5 L) |
| Front Axle/Diff Fluid | 1.7 gal (6.4 L) |
| Rear Axle/Diff Fluid | 1.8 gal (6.8 L) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
WA75-3(S/N HA950857-HA951433 & H21408-UP; WA85-3 S/N HA960166-HA960218 & H20219-UP) fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | 9.5 l (2.5 US gal) | Komatsu Genuine diesel engine oil (EO15W40-DH for warm climates; EO10W30-DH for cooler ranges; API CD/CE or higher equivalent accepted) |
| Cooling system | 12.5 l (3.3 US gal) | Komatsu Genuine AF-NAC super coolant (ethylene-glycol antifreeze/anti-corrosion coolant meeting ASTM D3306/D4985, mixed to local freeze protection requirements) |
| Fuel tank | 90.1 l (23.8 US gal) | Diesel fuel, cetane number 45 minimum, equivalent to ISO 8217 DMA or BS 2869 A1/A2 grade |
| Transmission/powertrain | Not documented for this exact serial range — verify with your dealer | Refer to the specific host machine's operation and maintenance manual for transmission fluid specifications |
| Final drives | Not documented for this exact serial range — verify with your dealer | Refer to the specific host machine's operation and maintenance manual for final drive fluid specifications |
| Hydraulic system and tank | 95.0 l (25.1 US gal) | Komatsu Genuine hydraulic oil (HO56 or equivalent ISO VG46/56 hydraulic oil meeting Komatsu Engineering Standard) |
| Front axle/differential | 6.4 l (1.7 US gal) | Komatsu Genuine AXO80 axle oil (SAE 80W, API GL-4, ZF TE-ML-05F compliant) |
| Rear axle/differential | 6.8 l (1.8 US gal) | Komatsu Genuine AXO80 axle oil (SAE 80W, API GL-4, ZF TE-ML-05F compliant) |
| Grease | N/A | NLGI No. 2 multipurpose lithium-based grease (Komatsu Genuine G2-LI grease or equivalent) |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Komatsu WA75-3(S/N HA950857-HA951433 & H21408-UP; WA85-3 S/N HA960166-HA960218 & H20219-UP) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 4,500 h |
|
Servicing the WA75-3(S/N HA950857-HA951433 & H21408-UP; WA85-3 S/N HA960166-HA960218 & H20219-UP) beyond the schedule
Predictive Maintenance & Fluid Analysis
Utilize Komatsu KOWA fluid analysis at every 500-hour interval to monitor engine oil wear metals, hydraulic fluid particle count, and coolant pH levels. Check the air filter restriction indicator daily and replace the outer element at 1,000 hours or when clogged. Inspect the hydraulic return filter at 500 hours and replace it at 1,000 hours. Monitor the SCA concentration in the coolant system during 500-hour services to prevent liner cavitation and corrosion. Verify battery terminal integrity and perform load tests at 500 hours to ensure reliable starting in cold conditions.
Corrective & Common Repairs
Address brake disc wear on the front axle by measuring clearance and replacing discs when limits are reached. Check the limited slip differential for proper function and replace worn components if traction issues arise. Inspect the variable displacement pump and motor for charge pressure leaks. Replace worn steering cylinder seals to prevent hydraulic fluid loss and steering drift. Check the articulation joint pins and bushings for play, greasing them regularly to extend service life. Inspect the fan belt for tension and wear to prevent engine overheating.
Overhaul & Rebuild Points
Perform a comprehensive component evaluation at 2,000 hours, including transmission oil and filter changes. Flush and replace the coolant system to remove accumulated contaminants. Change the final drive oil and differential oil to prevent gear wear. Inspect the turbocharger for shaft play and housing damage. Check valve clearances and adjust if necessary to maintain engine performance. Evaluate the structural integrity of the lifting frame and bucket linkage for cracks or excessive wear.
Seasonal & Environment Servicing
In cold weather, ensure the coolant system is protected with the correct glycol concentration to prevent freezing. Drain water from the fuel separator daily to prevent fuel line icing. Check the battery fluid levels and charge state more frequently in extreme temperatures. In dusty environments, inspect the air filter more often and replace the outer element as needed. Clean the radiator and oil cooler fins regularly to maintain proper engine cooling. Verify the operation of the cabin heater and defroster for operator comfort and safety.
WA75-3(S/N HA950857-HA951433 & H21408-UP; WA85-3 S/N HA960166-HA960218 & H20219-UP) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| YM129470-55610 | Body, Fuel Filter | Fuel system service | Check fitment → |
| YM120324-55760 | Element, Fuel Oil | Fuel system service | Check fitment → |
| 07281-00197 | Clamp,(With Pre-Fuel Filter) | Fuel system service | Check fitment → |
| 42U-01-13110 | Air Filter | Air intake service | Check fitment → |
| 42U-01-H0P01 | Filter Element | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
WA75-3(S/N HA950857-HA951433 & H21408-UP; WA85-3 S/N HA960166-HA960218 & H20219-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 |
| CA441 | Battery voltage too low | Weak battery, poor connections, or charging system failure | Replace the battery or alternator; check the voltage regulator |
| CA442 | Battery voltage too high | Faulty voltage regulator or alternator overcharging | Replace the alternator or battery; check the voltage regulator |
| CA122 | Intake air pressure sensor feedback voltage too high | Sensor malfunction or wiring short | Verify the intake pressure sensor and wiring |
| CA123 | Intake air pressure sensor feedback voltage too low | Sensor short or airflow restriction | Check for a sensor short or an airflow restriction |
| 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 | Charging voltage too low | Alternator failure or loose belt | Replace the alternator or tighten the belt |
| CA111 | Internal engine controller fault | ECM hardware failure | Replace or reprogram the ECM |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
WA75-3(S/N HA950857-HA951433 & H21408-UP; WA85-3 S/N HA960166-HA960218 & H20219-UP) attachments & work tools
Standard Buckets
The WA75-3 is equipped with a general-purpose bucket with a heaped capacity of 0.8 cubic meters (0.8 m³) to 1.05 cubic yards (1.05 yd³). The bucket width measures 1.95 meters (1.95 m) to 6.4 feet (6.4 ft). Breakout force is rated at 4,957.8 kilograms (4,957.8 kg) to 10,930 pounds (10,930 lb).
Quick Hitch Systems
Factory configurations include both hydraulic and mechanical quick hitch options for rapid tool changes. The WA75-3 Fleet variant specifically lists the quick hitch mechanism as special equipment. These systems allow for the attachment of various work tools without leaving the cab or requiring manual pinning.
Fork Attachments
Pallet forks are available as a work tool option for material handling tasks. Compatibility extends to standard wheel loader fork frames, allowing for the lifting and transport of palletized loads. Specific fork models are listed for the WA75-3 and related compact loader series.
Hydraulic Circuit Configuration
The machine utilizes a closed hydraulic circuit pump with a flow capacity of 64.4 liters per minute (64.4 LPM) to 17 gallons per minute (17 GPM). The system relief valve setting is 205.0 bar (2,973.3 psi). Tools requiring auxiliary hydraulics must interface with this closed-loop system.
Engine and Powertrain
The WA75-3 uses the Komatsu 4D98E engine, a 4-cylinder, naturally aspirated unit with 2,02.5 cubic inches (2,02.5 cu in) displacement. Net power output is 42.5 kW (57 hp) at 2,500 rpm. The transmission is hydrostatic with 2 forward and 2 reverse gears, providing a maximum forward speed of 20.1 km/h (12.5 mph).
Fluid Capacities
The hydraulic system holds 95.0 liters (95.0 L) to 25.1 gallons (25.1 gal). The cooling system capacity is 12.5 liters (12.5 L) to 3.3 gallons (3.3 gal). Engine oil capacity is 9.5 liters (9.5 L) to 2.5 gallons (2.5 gal). Front and rear axle/differential capacities are 6.4 liters (6.4 L) and 6.8 liters (6.8 L) respectively.
All WA75-3(S/N HA950857-HA951433 & H21408-UP; WA85-3 S/N HA960166-HA960218 & H20219-UP) assemblies by section
Every catalogued assembly group for the Komatsu WA75-3(S/N HA950857-HA951433 & H21408-UP; WA85-3 S/N HA960166-HA960218 & H20219-UP). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
01 Engine, Engine Mounting
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 01 Engine, Engine Mounting : 00 Maintenance Kit
| 42***01 | Filter Element | 1 |
| 42***02 | Filter Element | 1 |
| 42***50 | Filter Element | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 01 Engine, Engine Mounting : 01 Engine, Engine Mounting
| 01***00 | Capscrew | 4 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 16 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 4 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 01 Engine, Engine Mounting : 02 Cylinder Block And Attaching Parts
| YM***60 | Cylinder Block, Assembly | 1 |
| YM***00 | Screw | 18 |
| YM***00 | Main Metal Ass'Y (Std) | 5 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 01 Engine, Engine Mounting : 04 Crank Assembly
| YM***50 | Ring Set (+0.25 mm) | 4 |
| YM***00 | Crankshaft, Assembly | 1 |
| YM***80 | Flywheel, Assembly | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 01 Engine, Engine Mounting : 05 Cylinder Head And Attaching Parts
| YM***80 | Retainer, Spring | 8 |
| YM***40 | Seal,Valve? Exhaust (Kit) | 4 |
| YM***51 | Cap, Lub. Oil Supply | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 01 Engine, Engine Mounting : 06 Gasket Kit, Cylinder Head
| YM***40 | Seal,Valve? Exhaust (Kit) | 4 |
| YM***01 | Gasket (Kit) | 1 |
| YM***02 | Seal,Ring (Kit) | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 01 Engine, Engine Mounting : 08 Timing Gear Case And Flywheel Housing
| YM***52 | Screw | 9 |
| YM***02 | Bolt Plated | 3 |
| YM***51 | Cap, Lub. Oil Supply | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 01 Engine, Engine Mounting : 09 Engine Timing Gear
| YM***00 | Idle Gear Ass'Y | 1 |
| YM***00 | Tappet Rod | 8 |
| YM***50 | Bearing, Thrust | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 01 Engine, Engine Mounting : 10 Engine Lubrication
| 42***70 | Hose Assembly | 1 |
| 42***10 | Drain Valve | 1 |
| 42***60 | Hose | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 01 Engine, Engine Mounting : 15 Water Pump
| 42***00 | Fan | 1 |
| 42***30 | Adaptor | 1 |
| 78***20 | Sensor, Trans. Control Valve Oil Temperature | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 01 Engine, Engine Mounting : 20 Injection System
| YM***02 | Bolt Plated | 1 |
| YM***50 | Nozzle | 4 |
| YM***40 | Injection Pipe N. 4 | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 01 Engine, Engine Mounting : 24 Injection Pump, Body Pump
| YM***00 | Segment | 4 |
| YM***00 | Gasket Disc | 4 |
| YM***20 | Valve,Delivery | 4 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 01 Engine, Engine Mounting : 25 Injection Pump
| YM***40 | Screw | 2 |
| YM***00 | Nut | 1 |
| YM***00 | Screw | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 01 Engine, Engine Mounting : 26 Fuel Pump
| YM***40 | Gasket | 4 |
| YM***60 | O-Ring | 2 |
| YM***10 | Feed Pump Ass'Y | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 01 Engine, Engine Mounting : 28 Fuel System, Pre Filter
| 01***16 | Screw | 6 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 1 |
| 01***35 | Bolt, Mount Bracket To Floor | 2 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 01 Engine, Engine Mounting : 29 Fuel System, Fine Filter
| YM***02 | Screw | 1 |
| YM***10 | Banjo Fitting | 1 |
| YM***10 | Protector | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 01 Engine, Engine Mounting : 46 Air Intake System, Standard
| YM***00 | Manifold,Air Intake | 1 |
| YM***21 | Gasket (Kit) | 1 |
| YM***52 | Screw | 9 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 01 Engine, Engine Mounting : 49 Air Filter System, Standard
| 01***35 | Bolt,(For Fix Position) | 2 |
| 01***16 | Bolt, Mount Solenoid Valve | 4 |
| 07***09 | Clamp, Hose - At Water Pump | 3 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 01 Engine, Engine Mounting : 54 Air Cleaner
| 42***10 | Air Filter | 2 |
| 42***01 | Filter Element | 1 |
| 42***02 | Filter Element | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 01 Engine, Engine Mounting : 57 Exhaust System
| YM***02 | Nut | 2 |
| YM***01 | Gasket (Kit) | 1 |
| YM***52 | Screw | 6 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 01 Engine, Engine Mounting : 60 Engine Control
| 01***16 | Bolt - Box Mounting | 4 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
| 01***05 | Nut,(For Air Conditioner Less), Nut | 2 |
02 Cooling System
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 02 Cooling System : 73 Radiator
| 01***25 | Washer,Spring?For Additional Rear Lam | 6 |
| 01***12 | Washer,(With Body Positioner) | 12 |
| 41***60 | Nut | 6 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 02 Cooling System : 74 Radiator Attaching Parts
| 01***14 | Bolt,(W/Joy Stick Str.)(W/O Heater) | 2 |
| 01***16 | Bolt, Mount Solenoid Valve | 3 |
| 01***20 | Bolt,(Forwarded Individually Parts) | 6 |
03 Electric System
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 03 Electric System : 42 Alternator
| YM***20 | Rectifier Kit | 1 |
| YM***02 | Bolt Plated | 4 |
| YM***22 | Screw | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 03 Electric System : 43 Starter Motor
| YM***80 | Holder Brush, Assembly | 1 |
| YM***10 | Retainer | 1 |
| YM***20 | Shift Lever Ass'Y | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 03 Electric System : 56 Electric System, Lighting Unit
| 01***16 | Screw, Mount Parking Lights | 4 |
| 42***60 | Plain Washer | 4 |
| 42***70 | Nut | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 03 Electric System : 61 Electric System, Harness
| 01***16 | Screw | 2 |
| 01***12 | Bolt,(With Speedometer) | 1 |
| 01***16 | Bolt - Starting Motor Ground Cable | 15 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 03 Electric System : 62 Electric System, Relay
| 01***10 | Screw,(For Lighter) | 4 |
| 01***10 | Screw,(For Wiper Switch Earth) | 2 |
| 01***12 | Screw,(With Articulate Indicator) | 3 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 03 Electric System : 63 Instrument Box And Instruments
| 41***60 | Orifice Plate | 1 |
| 42***01 | Key Kit | 1 |
| 42***10 | Starter Switch | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 03 Electric System : 64 Instrument Box And Attaching Parts
| 01***14 | Bolt,(W/Joy Stick Str.)(W/O Heater) | 2 |
| 01***20 | Bolt,(Forwarded Individually Parts) | 2 |
| 42***90 | Protective Strip | 3 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 03 Electric System : 65 Windshield-Wiper - Washer System
| 01***16 | Bolt, Mounting Transmission Control Switch | 4 |
| 41***60 | Nut | 3 |
| 42***60 | Connection | 2 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 03 Electric System : 68 Radio
| 01***12 | Screw,(Without Ashtray) | 2 |
| 42***00 | Sleeve | 1 |
| 42***50 | Antenna | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 03 Electric System : 70 Turning Light
| 01***25 | Bolt, Pinlock | 1 |
| 01***12 | Bolt,(With Speedometer) | 2 |
| 01***26 | Washer,Spring | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 03 Electric System : 71 Back Up Alarm
| 08***34 | Tie, Cable | 3 |
| 42***00 | Sleeve | 4 |
| 42***60 | Hose | 2 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 03 Electric System : 74 Battery
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***12 | Washer,(With Body Positioner) | 2 |
| 42***00 | Battery | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 03 Electric System : 75 Battery Main Switch
| 01***16 | Bolt, Mounting Transmission Control Switch | 2 |
| 01***05 | Nut,(For Air Conditioner Less), Nut | 2 |
| 01***19 | Washer,Spring (With Extinguisher) (D31p) | 2 |
04 Transmission, Universal Joint
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 04 Transmission, Universal Joint : 61 Axial Piston Pump
| 42***61 | Gasket | 1 |
| 42***01 | Axial Piston Pump | 1 |
| 42***51 | Axial Piston Pump | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 04 Transmission, Universal Joint : 75 Universal Joint
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 12 |
| 42***20 | Screw | 6 |
| 42***30 | Nut | 18 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 04 Transmission, Universal Joint : 83 Clutch
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
| 01***25 | Bolt,Sight | 12 |
| 42***10 | Flange | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 04 Transmission, Universal Joint : 97 Hydraulic Pump Drive
| 01***45 | Screw | 2 |
| 01***50 | Screw | 2 |
| 01***20 | Screw | 4 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 04 Transmission, Universal Joint : 98 Axial Piston Engine
| 42***62 | Grub Screw | 2 |
| 42***01 | Axial Piston Engine | 1 |
| 42***58 | Plug | 2 |
05 Rear Axle
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 05 Rear Axle : 43 Rear Axle
| 01***16 | Nut - M20 | 8 |
| 42***30 | Disc | 8 |
| 42***10 | U Bolt | 4 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 05 Rear Axle : 44 Axle Insert
| 42***40 | Screw | 12 |
| 42***42 | Screw | 8 |
| 42***06 | Drive | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 05 Rear Axle : 46 Brake
| 42***02 | Grub Screw | 2 |
| 42***70 | O-Ring | 1 |
| 42***71 | Bushing | 2 |
06 Disc Wheel, Chain
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 06 Disc Wheel, Chain : 77 Disc Wheel
| 42***10 | Valve | 4 |
| 42***40 | Rim | 4 |
| 42***20 | Rim | 4 |
07 Steering
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 07 Steering : 00 Steering, Steering Mounting
| 01***25 | Bolt,Sight | 4 |
| 01***60 | Bolt, Mounting | 2 |
| 01***16 | Bolt - Starting Motor Ground Cable | 2 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 07 Steering : 01 Steering Column
| 42***80 | Steering Column | 1 |
| 42***01 | Nut | 1 |
| 42***02 | Rubber Washer | 2 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 07 Steering : 07 Steering Cylinder
| 42***50 | Seal | 1 |
| 42***60 | Ball And Socket Join | 2 |
| 42***70 | Snap Ring | 4 |
08 Front Axle
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 08 Front Axle : 00 Front Axle
| 01***95 | Screw | 8 |
| 01***13 | Nut,(For Adjustable Rod) | 8 |
| 01***16 | Nut - M20 | 8 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 08 Front Axle : 01 Axle Insert
| 42***40 | Screw | 12 |
| 42***42 | Screw | 8 |
| 42***39 | Sheet | 1 |
09 Brake System
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 09 Brake System : 00 Brake System
| 01***60 | Bolt,(With Body Positioner) | 2 |
| 01***30 | Bolt,Stopper | 1 |
| 01***40 | Screw | 2 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 09 Brake System : 90 Hand Brake And Operating Assembly
10 Frame
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 10 Frame : 02 Frame
| 01***12 | Bolt,(With Speedometer) | 8 |
| 01***16 | Bolt, Mount Solenoid Valve | 6 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 2 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 10 Frame : 03 Hinge
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***30 | Screw | 8 |
| 01***40 | Screw | 12 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 10 Frame : 06 Fender
| 42***90 | Nut | 8 |
| 42***00 | Nut | 6 |
| 42***60 | Plain Washer | 8 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 10 Frame : 09 Radiator Guard And Bonnet
| 01***12 | Bolt - Front Cover Mounting | 6 |
| 01***30 | Bolt,Stopper | 4 |
| 01***35 | Screw | 6 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 10 Frame : 12 Counterweight
| 01***40 | Bolt,(For Operator'S Cab) | 4 |
| 01***60 | Flat Washer - M20 (Hardened) | 4 |
| 42***10 | Ring | 2 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 10 Frame : 14 Platform
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 6 |
| 01***12 | Washer,(With Body Positioner) | 6 |
| 42***90 | Gasket | 1 |
11 Drivers Cab
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 11 Drivers Cab : 00 Safety Cabin
| 01***20 | Bolt,(Without Air Con. Or Heater) | 3 |
| 01***25 | Capscrew | 6 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 6 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 11 Drivers Cab : 01 Safety Cabin, Doors
| 01***20 | Screw | 6 |
| 42***60 | Screw | 4 |
| 42***40 | Nut | 2 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 11 Drivers Cab : 04 R.O.P.S. Canopy
| 01***20 | Bolt,(Without Air Con. Or Heater) | 3 |
| 01***08 | Washer,(For Mounting First Aid Kit) | 3 |
| 20***40 | Bulb | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 11 Drivers Cab : 11 Soundproofing Of Cabin
| 42***80 | Screw | 14 |
| 42***30 | Air Nozzle | 2 |
| 42***00 | Cladding | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 11 Drivers Cab : 12 Soundproof
| 42***50 | Insulating Mat | 1 |
| 42***70 | Insulating Mat | 1 |
| 42***80 | Insulating Mat | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 11 Drivers Cab : 13 Soundproof, Engine-Cladding
| 42***40 | Bracket | 16 |
| 42***50 | Screw | 16 |
| 42***80 | Insulating Mat | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 11 Drivers Cab : 18 Heater
| 01***16 | Bolt, Mounting Transmission Control Switch | 6 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 1 |
| 01***08 | Nut,See Fig. K4010-04a0 | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 11 Drivers Cab : 19 Air Conditioner
| 01***16 | Bolt, Mounting Transmission Control Switch | 6 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 1 |
| 01***08 | Nut,See Fig. K4010-04a0 | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 11 Drivers Cab : 27 Drivers Seat, Attaching Parts
| 01***25 | Screw | 4 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 2 |
| 01***12 | Washer,(With Body Positioner) | 4 |
12 Tools, Accessory, Lettering
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 12 Tools, Accessory, Lettering : 00 Wedge And Attachement
| 01***20 | Bolt,See Fig. K4010-65a0 | 4 |
| 42***30 | Underl Wedge | 1 |
| 42***40 | Bracket | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 12 Tools, Accessory, Lettering : 01 Tools And Accessory
| 01***40 | Screw | 4 |
| 01***40 | Nut,(Noise Suppression Spec.) | 1 |
| 04***55 | Pin, Cotter | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 12 Tools, Accessory, Lettering : 02 Tools
| 42***30 | Tool Bag | 1 |
| 42***10 | Tool Set | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 12 Tools, Accessory, Lettering : 03 Lettering
| 41***40 | Note Plate | 3 |
| 42***50 | Note Plate | 4 |
| 42***00 | Characters | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 12 Tools, Accessory, Lettering : 04 Decals, German
| 09***80 | Plate? Safety,Without E.S.Cover (Except Ec) | 1 |
| 42***50 | Plate? Operating | 1 |
| 42***80 | Plate? Caution,Hot Water | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 12 Tools, Accessory, Lettering : 05 Decals, English
| 09***80 | Plate? Safety,Without E.S.Cover (Except Ec) | 1 |
| 42***50 | Plate? Operating | 1 |
| 42***80 | Plate? Caution,Hot Water | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 12 Tools, Accessory, Lettering : 06 Decals, French
| 09***80 | Plate? Safety,Without E.S.Cover (Except Ec) | 1 |
| 42***50 | Plate? Operating | 1 |
| 42***80 | Plate? Caution,Hot Water | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 12 Tools, Accessory, Lettering : 08 Decals, Italian
| 09***80 | Plate? Safety,Without E.S.Cover (Except Ec) | 1 |
| 42***50 | Plate? Operating | 1 |
| 42***80 | Plate? Caution,Hot Water | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 12 Tools, Accessory, Lettering : 09 Decals, Spanish
| 09***80 | Plate? Safety,Without E.S.Cover (Except Ec) | 1 |
| 42***50 | Plate? Operating | 1 |
| 42***80 | Plate? Caution,Hot Water | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 12 Tools, Accessory, Lettering : 10 Decals, Swedish
| 09***80 | Plate? Safety,Without E.S.Cover (Except Ec) | 1 |
| 42***50 | Plate? Operating | 1 |
| 42***80 | Plate? Caution,Hot Water | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 12 Tools, Accessory, Lettering : 11 Decals, Danish
| 09***80 | Plate? Safety,Without E.S.Cover (Except Ec) | 1 |
| 42***50 | Plate? Operating | 1 |
| 42***80 | Plate? Caution,Hot Water | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 12 Tools, Accessory, Lettering : 12 Decals, Finnish
| 09***80 | Plate? Safety,Without E.S.Cover (Except Ec) | 1 |
| 42***50 | Plate? Operating | 1 |
| 42***80 | Plate? Caution,Hot Water | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 12 Tools, Accessory, Lettering : 13 Decals, Norwegian
| 09***80 | Plate? Safety,Without E.S.Cover (Except Ec) | 1 |
| 42***50 | Plate? Operating | 1 |
| 42***80 | Plate? Caution,Hot Water | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 12 Tools, Accessory, Lettering : 14 Decals, Dutch
| 09***80 | Plate? Safety,Without E.S.Cover (Except Ec) | 1 |
| 42***50 | Plate? Operating | 1 |
| 42***80 | Plate? Caution,Hot Water | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 12 Tools, Accessory, Lettering : 15 Decals, Portuguese
| 09***80 | Plate? Safety,Without E.S.Cover (Except Ec) | 1 |
| 42***50 | Plate? Operating | 1 |
| 42***80 | Plate? Caution,Hot Water | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 12 Tools, Accessory, Lettering : 16 Decals, Greek
| 09***80 | Plate? Safety,Without E.S.Cover (Except Ec) | 1 |
| 42***50 | Plate? Operating | 1 |
| 42***80 | Plate? Caution,Hot Water | 1 |
13 Hydraulic System
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 13 Hydraulic System : 01 Hydraulic System
| 01***65 | Capscrew | 4 |
| 01***25 | Bolt,Sight | 2 |
| 01***30 | Screw | 8 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 13 Hydraulic System : 07 Check Port
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 04***10 | Clip - Fuel Sensor Harness | 2 |
| 42***50 | Stud | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 13 Hydraulic System : 08 Pipings For Remote Control Valve
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 42***40 | Union | 1 |
| 42***60 | Brace | 4 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 13 Hydraulic System : 12 Control Valve
| 42***00 | Inlet Ass'Y | 1 |
| 42***01 | Timing Gear Case | 1 |
| 42***03 | Timing Gear Case | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 13 Hydraulic System : 26 Lift Cylinder
| 42***80 | O-Ring | 1 |
| 42***00 | Seal | 1 |
| 42***10 | Lift Cylinder | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 13 Hydraulic System : 28 Bucket Cylinder
| 41***30 | O-Ring | 1 |
| 42***80 | O-Ring | 1 |
| 42***40 | Bucket Cylinder | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 13 Hydraulic System : 31 Hose Rupture Safety Device
| 01***50 | Capscrew | 2 |
| 01***55 | Bolt,(See Service News) | 2 |
| 01***50 | Screw | 4 |
14 Boom, Thrust Frame - Arm
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 14 Boom, Thrust Frame - Arm : 00 Boom
| 01***30 | Bolt - Pin Mounting | 1 |
| 01***12 | Bolt,(With Speedometer) | 2 |
| 01***16 | Bolt - Starting Motor Ground Cable | 6 |
15 Equipment
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 15 Equipment : 00 Bucket
| 42***01 | Bucket | 1 |
| 42***41 | Bucket | 1 |
| 42***20 | Reinforcement | 2 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 15 Equipment : 02 Quick Change
| 01***85 | Bolt,(For Perforated Mask) | 2 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 2 |
| 01***16 | Washer,Radio Controlled Slag Handling | 2 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 15 Equipment : 03 Quick Change, Pipings
| 01***40 | Bolt - M6 X 40lg | 2 |
| 01***70 | Screw | 6 |
| 01***25 | Bolt - Relay Mounting | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 15 Equipment : 04 Fork Lift
| 42***00 | Prongs | 2 |
| 42***00 | Locator | 2 |
| 42***80 | Carrier | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 15 Equipment : 05 Grab Bucket
| 01***13 | Nut,(For Adjustable Rod) | 8 |
| 42***40 | Grab Bucket | 1 |
| 42***02 | Cutting Edge | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 15 Equipment : 06 Grab Bucket, Pipings
| 42***19 | Union | 2 |
| 42***20 | Union | 4 |
| 42***21 | Tube | 2 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 15 Equipment : 07 Side Tip Bucket
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***30 | Bolt,(For Rubber Shoe) | 1 |
| 01***26 | Washer,Spring | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 15 Equipment : 10 Ripper Tooth Wear Plate And Marker Light
| 01***16 | Bolt - Seat And Tether Belt Mounting | 4 |
| 01***35 | Screw | 2 |
| 01***50 | Wing Nut | 2 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 15 Equipment : 11 Return To Dig
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 2 |
| 01***30 | Bolt, Mounting - Front Hand Rails | 2 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 15 Equipment : 13 Compost Buckt
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***25 | Bolt, Pinlock | 2 |
| 01***10 | Nut,(Without Air Conditioner) | 8 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 15 Equipment : 20 High Tip Bucket
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 01***30 | Bolt, Mounting - Front Hand Rails | 2 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 15 Equipment : 49 Crane Boom
| 42***00 | Screw | 2 |
| 42***12 | Boom | 1 |
| 42***13 | Suspension Unit | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 15 Equipment : 62 A.L.S. Equipment
| 01***16 | Bolt - Seat And Tether Belt Mounting | 3 |
| 01***50 | Screw | 2 |
| 01***40 | Screw | 4 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 15 Equipment : 65 A.L.S. Solenoid Valve
| 42***60 | O-Ring | 1 |
| 42***89 | Electrical Plug | 1 |
| 42***60 | Valve | 1 |
Komatsu : Wa75-3(S/N Ha950857-Ha951433 & H21408-Up; Wa85-3 S/N Ha960166-Ha960218 & H20219-Up) : 15 Equipment : 89 Special Equipment Italy
| 01***40 | Bolt (Op) | 2 |
| 01***40 | Nut,(Noise Suppression Spec.) | 2 |
| 01***16 | Plain Washer | 3 |
WA75-3(S/N HA950857-HA951433 & H21408-UP; WA85-3 S/N HA960166-HA960218 & H20219-UP) serial number reference
The PIN plate is riveted to the front frame on the right-hand side of the articulation joint. The prefix is the first two letters of the 17-character ISO PIN stamped on the emissions/export plate. The serial number is the numeric portion following the prefix on the chassis plate.
| Prefix | Identifies | Notes |
|---|---|---|
| HA | WA75-3 | Serial range HA950857-HA951433 & H21408-UP. WA75-3 is a 3rd generation wheel loader (dash-3) produced 1998-2004. Engine is a 4-cylinder Komatsu emissionized engine. Operating weight is 4.9 tons. Bucket capacity is 0.8 cubic meters. Travel speed is 20 km/h. Transport length is 5.395 meters. Maximum discharge height is 2.555 meters. Bucket width is 1.95 meters. Bucket breakout force is 10,925.8 lbs. Heaped bucket capacity is 1.1 cu yd. Net horsepower is 42.5 kW (58 PS). Basic model has ROPS cabin, std. shovel and teeth. Quick hitch is available in hydraulic or mechanical variants. Closed hydraulic circuit pump is fitted. Torque/engine speed is listed but specific values are not documented for this exact serial range — verify with your dealer. Confirm with dealer for exact engine model code and specific torque values. |
| HA | WA85-3 | Serial range HA960166-HA960218 & H20219-UP. WA85-3 is a 3rd generation wheel loader (dash-3) produced 1998-2004. Engine is a 4-cylinder Komatsu emissionized engine. Operating weight is 4.9 tons. Bucket capacity is 0.8 cubic meters. Travel speed is 20 km/h. Transport length is 5.395 meters. Maximum discharge height is 2.555 meters. Bucket width is 1.95 meters. Bucket breakout force is 10,925.8 lbs. Heaped bucket capacity is 1.1 cu yd. Net horsepower is 42.5 kW (58 PS). Basic model has ROPS cabin, std. shovel and teeth. Quick hitch is available in hydraulic or mechanical variants. Closed hydraulic circuit pump is fitted. Torque/engine speed is listed but specific values are not documented for this exact serial range — verify with your dealer. Confirm with dealer for exact engine model code and specific torque values. |
Frequently asked questions
What engine does the Komatsu WA75-3 use?
The Komatsu WA75-3 is powered by a 4-cylinder Komatsu 4D98E diesel engine. It produces 57 hp (42.5 kW) at 2500 rpm and has a displacement of 202.5 cu in (3,318 cc).
What is the operating weight of the Komatsu WA75-3?
The operating weight of the Komatsu WA75-3 is approximately 10,690 lbs (4,849 kg). This weight can vary slightly depending on the specific configuration and attachment package.
What model replaced the Komatsu WA75-3?
The Komatsu WA75-3 was succeeded by the Komatsu WA75-4. The WA75-3 was manufactured from 1998 to 2004.
What WA75-3(S/N HA950857-HA951433 & H21408-UP; WA85-3 S/N HA960166-HA960218 & H20219-UP) owners discuss
What is the typical powertrain behavior of the WA75-3 regarding drive loss under load?
Operators report that the hydrostatic transmission may lose drive or struggle to penetrate material when the engine is at full RPM, particularly on soft surfaces like sand. This is often attributed to the drive pump or its control valve rather than the engine itself. If the weakness occurs in both directions, the pump is the primary suspect; if only in forward, swapping the relief valves on the drive pump is a common diagnostic step. The transmission relies on hydraulic oil, so oil condition and level are critical for maintaining penetration power and preventing slippage during heavy loading cycles. Have your dealer verify the drive pump pressure and relief valve settings if slippage persists after fluid service.
What are the common hydraulic system issues reported for this series?
A frequent complaint is that hydraulic functions become weak or slow specifically when the machine is hot, while operating normally when cold. This pattern indicates internal leakage in the main hydraulic pump, main control valve, or cylinders, as viscosity drops with temperature. Owners also note that if all functions (boom, arm, bucket, travel) are slow simultaneously, the issue is likely shared: low hydraulic oil level, clogged filters, or incorrect oil specification. The WA75-3 uses a closed hydraulic circuit pump; contamination or degraded Komatsu EO or equivalent hydraulic fluid accelerates wear on these components. Have your dealer verify hydraulic pressure and flow rates when the system is at operating temperature.
What engine quirks are associated with the WA75-3 powerplant?
The WA75-3 is equipped with a naturally aspirated 4-cylinder Komatsu engine (model 4D98E or 4D94E depending on specific serial and configuration). Because it lacks a turbocharger, it relies heavily on the glow plug system for reliable cold starts below freezing. Owners monitor coolant levels closely for oil intrusion at the water pump seal, a known wear point on high-hour units. The engine is robust but sensitive to air and fuel restrictions; loss of power under load often points to clogged air filters, fuel filters, or a restricted fuel tank vent rather than internal engine failure. Aftermarket rebuild kits are widely available for this displacement class. Have your dealer verify the glow plug operation and fuel system integrity before winter operation.
What electrical or sensor issues are common in the WA75-3?
Komatsu machines of this era rely on electronic control systems that can trigger multiple warning signals from a single faulty sensor or unstable power supply. Owners report intermittent starting, dashboard failures, or random shutdowns. These symptoms often stem from poor battery grounds, corroded connectors, or failing sensors rather than major component failure. The machine operates on a 12-volt system with an 80-amp alternator; voltage collapse under load during starting can mimic electrical faults. Checking battery state of charge, terminal tightness, and main chassis grounds is the first step before diagnosing complex electronic issues. Have your dealer verify the charging system output and sensor signals if intermittent faults persist.
What undercarriage or wear patterns are typical for this machine type?
The WA75-3 is a compact wheel loader with a 4.9-ton operating weight, designed for light to medium duty. Wear patterns typically focus on the tires (size 405/70 R18 SPT 9) and the hydraulic hoses due to frequent articulation and exposure to abrasive materials like sand and gravel. The hydrostatic transmission and final drives are subject to wear if hydraulic fluid is contaminated or overheated. The machine’s rounded rear and wide counterweight are designed for visibility but can accumulate material. Undercarriage wear is less of a concern than on tracked machines, but tire wear and rim damage are common in rocky or abrasive environments. Regular inspection of tire pressure and condition is essential for stability and fuel efficiency.
What are the key fluid specifications and capacities for the WA75-3?
The WA75-3 uses Komatsu EO or equivalent hydraulic oil, Komatsu TO or equivalent powertrain oil, and Komatsu AXO or equivalent axle oil. Coolant capacity is approximately 12 liters (3.3 gallons). Engine oil capacity is approximately 9 liters (2.4 gallons). Hydraulic system fluid capacity is approximately 95 liters (25 gallons). Front axle/diff fluid capacity is approximately 6 liters (1.6 gallons), and rear axle/diff fluid capacity is approximately 7 liters (1.8 gallons). Fuel capacity is 90 liters (24 gallons). Using the correct Komatsu Engineering Standard fluids is critical for maintaining component life and performance. Have your dealer verify fluid levels and condition during routine service intervals.
What should be checked when buying a used WA75-3 (S/N HA950857-HA951433 & H21408-UP; WA85-3 S/N HA960166-HA960218 & H20219-UP)?
When purchasing a used WA75-3, verify the exact serial number to confirm the engine model (4D98E or 4D94E) and configuration, as specs vary by series. Check the hydrostatic drive pump for slippage under load, especially in both forward and reverse directions. Inspect the hydraulic system for weakness when hot, which indicates internal leakage. Test the glow plug system for reliable cold starts. Examine the tires (405/70 R18 SPT 9) for wear and damage. Check for coolant oil intrusion at the water pump seal. Verify the condition of the hydraulic filters and fluid. Ensure the dashboard displays no persistent fault codes. Have your dealer verify the drive pump pressure, hydraulic flow, and engine compression if any performance issues are suspected.
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 WA75-3(S/N HA950857-HA951433 & H21408-UP; WA85-3 S/N HA960166-HA960218 & H20219-UP). Related factory variants of the same model family:
WA75-3(S/N HA950051-HA950856; WA85-3 S/N HA960051-HA960165)WA75-3(30km/h Option S/N HA950051-HA951433 & H21408-UP; WA85-3 30km/h Option S/N HA960051-HA960218 & H20219-UP)
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