Komatsuwheel loadersmall ( - wa120 / sk*)
Komatsu WA75-3(S/N HA950051-HA950856; WA85-3 S/N HA960051-HA960165)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu WA75-3 is a compact wheel loader in the 5-ton class, manufactured from 1998 to 2004. It is powered by a 4D98E four-cylinder diesel 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 two forward and two reverse gears. The WA75-3 succeeded the WA75-2 and was followed by the WA75-4. Configurations included standard ROPS cabs, quick hitches, and various bucket capacities ranging from 0.8 to 1.25 cubic meters.
Across the series, the WA75-3 introduced a closed hydraulic circuit and improved operator comfort with a quieter, emission-compliant engine. The machine remains relevant in the used market due to its simple hydrostatic drive, which reduces maintenance complexity compared to mechanical transmissions. Its compact size and 20 km/h travel speed make it suitable for municipal, agricultural, and light construction work. Parts availability is supported by the extensive WA75-3 fleet base, ensuring continued demand for service components and replacement engines.
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 HA950051-HA950856; WA85-3 S/N HA960051-HA960165) specifications
Engine
| Model | 4D 98E |
| Net Power | 57 hp (42.5 kW) |
| Displacement | 202.5 cu in (3318 cc) |
| Cylinders | 4 |
| Emissions Tier | Not documented for this exact serial range — verify with your dealer |
Weights
| Operating Weight | 10692.5 lb (4849 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 | 17.69 ft (5.39 m) |
| Transport Width | 5.25 ft (1.6 m) |
| Transport Height | 8.7 ft (2.65 m) |
| Wheelbase | 6.57 ft (2.0 m) |
| Ground Clearance | 1.51 ft (0.46 m) |
| Hinge Pin Max Height | 10.52 ft (3.2 m) |
| Reach at Max Lift and Dump | 2.92 ft (0.89 m) |
| Dump Clearance at Max Raise | 8.42 ft (2.57 m) |
Performance
| Travel Speed (Forward) | 12.5 mph (20.1 km/h) |
| Breakout Force | 10925.72 lb (4957 kg) |
| Static Tipping Weight | 8267.4 lb (3751 kg) |
| Gradeability | Not documented for this exact serial range — verify with your dealer |
Service capacities (summary)
| Fuel Tank | 90.1 L (23.8 gal) |
| Hydraulic System | 95.0 L (25.1 gal) |
| Engine Oil | 2.5 gal (9.5 L) |
| Cooling System | 12.5 L (3.3 gal) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
WA75-3(S/N HA950051-HA950856; WA85-3 S/N HA960051-HA960165) 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 warmer climates; EO10W30-DH for cooler climates; 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 ratio suited for local ambient/freeze conditions |
| 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 own operation and maintenance manual for these systems |
| Final drives | Not documented for this exact serial range — verify with your dealer | Refer to the specific host machine's own operation and maintenance manual for these systems |
| Hydraulic system and tank | 95.0 L (25.1 US gal) | Komatsu Genuine hydraulic oil (HO56 for standard operation; ISO VG46/SAE 5W-30 equivalent where specified by ambient temperature) |
| 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 HA950051-HA950856; WA85-3 S/N HA960051-HA960165) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
Servicing the WA75-3(S/N HA950051-HA950856; WA85-3 S/N HA960051-HA960165) beyond the schedule
Predictive Maintenance & Fluid Analysis
Utilize KOWA fluid analysis at every 500-hour interval to monitor engine wear metals and hydraulic contamination. Check coolant SCA concentration at 500 hours to prevent scaling and corrosion in the 4D98E engine block. Monitor hydraulic oil viscosity and particle count to detect pump wear early. Track fuel dilution in engine oil to identify injector or piston ring issues. Use KOMTRAX telematics data to correlate load frequency with fluid degradation rates for optimized change intervals.
Corrective & Common Repairs
Address hydrostatic drive pump leaks by inspecting charge pressure limiting valves and servo oil pressure. Replace worn brake linings on the front axle service brakes if stopping distance exceeds specifications. Check steering cylinder seals for external leaks that reduce articulation control. Inspect the limited-slip differential for noise indicating gear wear. Replace the hydraulic return filter if pressure drop indicators show clogging. Verify alternator output at 80 amps to prevent battery drain in cold starts.
Overhaul & Rebuild Points
Plan hydrostatic motor overhaul around 10,000 hours based on case drain flow and pressure loss. Rebuild the 4D98E engine at 15,000 hours or when compression drops below tolerance. Inspect final drive planetary gears and bevel pinion bearings for pitting or spalling. Check the articulation joint pins and bushings for excessive play causing frame misalignment. Evaluate the lift cylinder seals and rod scoring if bucket drift occurs. Replace the radiator and oil cooler cores if cooling efficiency drops due to internal blockage.
Seasonal & Environment Servicing
In cold climates, use Komatsu EO engine oil with appropriate viscosity for temperatures below -15°C. Drain water from the fuel separator daily to prevent ice formation in lines. Check the battery electrolyte level and charge state before winter storage. In dusty environments, clean the air filter outer element more frequently and check the restriction indicator. Inspect tire condition for cuts and wear, as the 405/70 R18 tires are prone to damage on rocky terrain. Flush the cooling system with fresh coolant to maintain heat exchange efficiency in high-ambient temperatures.
WA75-3(S/N HA950051-HA950856; WA85-3 S/N HA960051-HA960165) 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 HA950051-HA950856; WA85-3 S/N HA960051-HA960165) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| E10 | Engine controller power failure or engine control drive system circuit malfunction. | Faulty ECM power connections, blown fuses, or damaged ground wires. | Inspect ECM power connections, fuses, and ground wires for continuity and corrosion. |
| E11 | Engine control system failure resulting in reduced output power to protect the engine. | High coolant temperature, low oil pressure, or clogged air filter triggering protection logic. | Check coolant temperature, engine oil pressure, and air filter restriction status. |
| CA115 | Engine crankshaft speed sensor and backup speed sensor failure. | Broken sensor, wiring harness damage, or connector corrosion at the sensor pin. | Replace the speed sensor and verify voltage at the pin connector. |
| CA441 | Battery voltage is too low. | Weak battery, loose terminals, or failing alternator. | Replace the battery or alternator; check the voltage regulator and connections. |
| CA442 | Battery voltage is too high. | Faulty voltage regulator or alternator overcharging. | Replace the alternator or battery; check the voltage regulator. |
| AA10NX | Air cleaner clogging. | Clogged air filter element due to dust or lack of maintenance. | Replace the air filter element. |
| B@BCNS | Engine coolant overheating. | Low coolant level, blocked radiator fins, or failed fan belt. | Check radiator fins, fan belt, and coolant level; clean debris from the cooler. |
| B@HANS | Hydraulic oil overheating. | Contaminated hydraulic oil, clogged hydraulic filter, or blocked cooler fan. | Change hydraulic filter and oil; check cooler fan operation. |
| AB00KE | Charging voltage is too low. | Alternator malfunction or loose drive belt. | Replace the alternator or tighten the belt. |
| A570NX | Engine oil filter clogging. | Clogged engine oil filter element. | Replace the engine oil filter element. |
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 HA950051-HA950856; WA85-3 S/N HA960051-HA960165) attachments & work tools
Standard Buckets
The WA75-3 is equipped with a standard heaped bucket capacity of 0.8 cubic meters (1.1 cubic yards). The bucket width measures 1.95 meters (6.4 feet). This configuration provides a breakout force of 4,957.8 kilograms (10,925.72 pounds).
Fleet/Quick Hitch Buckets
The WA75-3 Fleet variant, manufactured from 2003 to 2004, supports a bucket capacity range of 0.8 to 1.25 cubic meters (1.1 to 1.6 cubic yards). This model includes a special quick hitch mechanism for tool interchangeability.
Coupler/Mounting Systems
The WA75-3 utilizes a quick hitch system, available in both hydraulic and mechanical configurations. The WA75-3 Fleet specifically includes a quick hitch mechanism as special equipment. The machine is compatible with standard wheel loader coupler interfaces.
Hydraulic Kit Requirements
The machine features a closed hydraulic circuit pump with a flow capacity of 64.4 liters per minute (17 gallons per minute). The relief valve setting is 205.0 bar (2,973.3 psi). Tools requiring auxiliary hydraulics must interface with this system.
Notable Factory Configurations
The WA75-3 is powered by a 4-cylinder Komatsu 4D98E engine producing 42.5 kW (57 hp) at 2,500 rpm. The standard tire size is 405/70 R18 SPT 9. The machine includes a ROPS cabin and emissionized engine components.
All WA75-3(S/N HA950051-HA950856; WA85-3 S/N HA960051-HA960165) assemblies by section
Every catalogued assembly group for the Komatsu WA75-3(S/N HA950051-HA950856; WA85-3 S/N HA960051-HA960165). 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 01 Engine, Engine Mounting : 25 Injection Pump
| YM***40 | Screw | 2 |
| YM***00 | Nut | 1 |
| YM***00 | Screw | 1 |
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 01 Engine, Engine Mounting : 26 Fuel Pump
| 01***16 | Bolt, Mount Solenoid Valve | 4 |
| 01***12 | Washer,(With Body Positioner) | 4 |
| 42***20 | Relay | 1 |
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 01 Engine, Engine Mounting : 49 Air Filter System, Standard
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 01 Engine, Engine Mounting : 54 Air Cleaner
| 42***10 | Air Filter | 1 |
| 42***01 | Filter Element | 1 |
| 42***02 | Filter Element | 1 |
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 02 Cooling System : 74 Radiator Attaching Parts
| 01***14 | Bolt,(W/Joy Stick Str.)(W/O Heater) | 8 |
| 01***20 | Bolt,(Forwarded Individually Parts) | 9 |
| 01***25 | Bolt - Relay Mounting | 2 |
03 Electric System
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 03 Electric System : 42 Alternator
| YM***41 | Cover, Rear | 1 |
| YM***20 | Timer,Solenoid | 1 |
| YM***50 | Cable | 1 |
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 03 Electric System : 56 Electric System, Lighting Unit
| 01***16 | Screw, Mount Parking Lights | 4 |
| 42***70 | Nut | 1 |
| 42***70 | Screw | 4 |
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 03 Electric System : 68 Radio
| 01***12 | Screw,(Without Ashtray) | 2 |
| 42***00 | Sleeve | 1 |
| 42***50 | Antenna | 1 |
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 03 Electric System : 71 Back Up Alarm
| 01***16 | Bolt, Mount Solenoid Valve | 4 |
| 01***12 | Washer,(With Body Positioner) | 4 |
| 42***20 | Relay | 1 |
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 04 Transmission, Universal Joint : 61 Axial Piston Pump
| 42***61 | Gasket | 1 |
| 42***00 | Axial Piston Pump | 1 |
| 42***50 | Axial Piston Pump | 1 |
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 04 Transmission, Universal Joint : 75 Universal Joint
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 6 |
| 42***20 | Screw | 6 |
| 42***30 | Nut | 6 |
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 04 Transmission, Universal Joint : 97 Hydraulic Pump Drive
| 01***45 | Screw | 2 |
| 01***45 | Screw | 2 |
| 01***50 | Screw | 2 |
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 04 Transmission, Universal Joint : 98 Axial Piston Engine
| 42***00 | Axial Piston Engine | 1 |
| 42***57 | Variator | 1 |
| 42***58 | Plug | 2 |
05 Rear Axle
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 05 Rear Axle : 44 Axle Insert
| 42***40 | Screw | 12 |
| 42***42 | Screw | 8 |
| 42***06 | Drive | 1 |
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 07 Steering : 01 Steering Column
| 42***80 | Steering Column | 1 |
| 42***01 | Nut | 1 |
| 42***02 | Rubber Washer | 2 |
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 09 Brake System : 90 Hand Brake And Operating Assembly
| 01***20 | Bolt,(Forwarded Individually Parts) | 2 |
| 01***12 | Washer,(With Body Positioner) | 1 |
| 04***15 | Pin,Cotter (Itl) | 1 |
10 Frame
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 10 Frame : 02 Frame
| 01***12 | Bolt,(With Speedometer) | 8 |
| 01***16 | Bolt, Mount Solenoid Valve | 6 |
| 42***90 | Seal | 1 |
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 10 Frame : 06 Fender
| 01***12 | Washer,(With Body Positioner) | 6 |
| 42***90 | Nut | 8 |
| 42***00 | Nut | 6 |
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 10 Frame : 09 Radiator Guard And Bonnet
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 11 Drivers Cab : 11 Soundproofing Of Cabin
| 42***80 | Screw | 10 |
| 42***00 | Cladding | 1 |
| 42***20 | Cover | 1 |
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 11 Drivers Cab : 12 Soundproof
| 42***50 | Roof Covering | 1 |
| 42***50 | Insulating Mat | 1 |
| 42***70 | Insulating Mat | 1 |
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 11 Drivers Cab : 18 Heater
| 01***20 | Bolt,See Fig. K4010-11a0 | 4 |
| 01***16 | Bolt - Starting Motor Ground Cable | 7 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 1 |
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 12 Tools, Accessory, Lettering : 02 Tools
| 42***30 | Tool Bag | 1 |
| 42***10 | Tool Set | 1 |
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 12 Tools, Accessory, Lettering : 03 Lettering
| 09***60 | Decal, Komatsu (Black Lettering) (Behind Driver'S Door) | 2 |
| 41***40 | Note Plate | 3 |
| 42***20 | Characters | 2 |
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 13 Hydraulic System : 01 Hydraulic System
| 01***65 | Capscrew | 4 |
| 01***25 | Bolt,Sight | 2 |
| 01***30 | Screw | 8 |
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 13 Hydraulic System : 08 Pipings For Remote Control Valve : Unit_02_of_02
| 01***65 | Screw | 2 |
| 01***16 | Bolt, Mounting Transmission Control Switch | 4 |
| 41***80 | Lock Washer | 2 |
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 13 Hydraulic System : 08 Pipings For Remote Control Valve : Unit_01_of_02
| 01***16 | Bolt, Mounting Transmission Control Switch | 4 |
| 01***25 | Bolt - Relay Mounting | 4 |
| 42***30 | Elbow | 3 |
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 13 Hydraulic System : 09 Remote Control Valve : Unit_01_of_02
| 42***10 | Remote Control Valve | 1 |
| 42***05 | Operating Assembly | 1 |
| 42***06 | Bell | 1 |
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 13 Hydraulic System : 09 Remote Control Valve : Unit_02_of_02
| 42***10 | Connection Socket | 1 |
| 42***00 | Connection Socket | 1 |
| 42***11 | Remote Control Valve | 1 |
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 13 Hydraulic System : 28 Bucket Cylinder
| 41***30 | O-Ring | 1 |
| 42***80 | O-Ring | 1 |
| 42***10 | Bucket Cylinder | 1 |
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 15 Equipment : 00 Bucket
| 42***01 | Bucket | 1 |
| 42***41 | Bucket | 1 |
| 42***20 | Reinforcement | 2 |
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 15 Equipment : 03 Quick Change, Pipings
| 01***40 | Bolt - M6 X 40lg | 2 |
| 01***60 | Bolt,(With Body Positioner) | 2 |
| 01***70 | Screw | 6 |
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 15 Equipment : 04 Fork Lift
| 42***00 | Prongs | 2 |
| 42***00 | Locator | 2 |
| 42***80 | Carrier | 1 |
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 15 Equipment : 06 Grab Bucket, Pipings
| 42***19 | Union | 2 |
| 42***20 | Union | 4 |
| 42***21 | Tube | 2 |
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 15 Equipment : 49 Crane Boom
| 42***00 | Screw | 2 |
| 42***12 | Boom | 1 |
| 42***13 | Suspension Unit | 1 |
Komatsu : Wa75-3(S/N Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 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 Ha950051-Ha950856; Wa85-3 S/N Ha960051-Ha960165) : 15 Equipment : 65 A.L.S. Solenoid Valve
| 42***60 | O-Ring | 1 |
| 42***89 | Electrical Plug | 1 |
| 42***60 | Valve | 1 |
WA75-3(S/N HA950051-HA950856; WA85-3 S/N HA960051-HA960165) serial number reference
The PIN plate is riveted to the front frame on the right-hand side of the articulation joint. Read the prefix as the first six characters of the serial number (e.g., HA950051) to identify the correct parts catalog and service manual range.
| Prefix | Identifies | Notes |
|---|---|---|
| HA950051-HA950856 | WA75-3 | WA75-3 (S/N HA950051-HA950856; WA85-3 S/N HA960051-HA960165) family. WA75-3: 42.5 kW (58 hp) engine, 4.9 t operating weight, 0.8 m³ bucket. WA85-3: 30 km/h option available. Manufactured 1998–2004. |
| HA960051-HA960165 | WA85-3 | WA75-3 (S/N HA950051-HA950856; WA85-3 S/N HA960051-HA960165) family. WA75-3: 42.5 kW (58 hp) engine, 4.9 t operating weight, 0.8 m³ bucket. WA85-3: 30 km/h option available. Manufactured 1998–2004. |
Frequently asked questions
What engine does the WA75-3 use?
The WA75-3 uses a Komatsu 4D98E four-cylinder diesel engine with 57 hp (42.5 kW) net power and 202.5 cu in (3,318 cc) displacement.
What is the operating weight?
The operating weight is approximately 4,849 kg (10,690 lbs), varying slightly by configuration and attachment package.
What model replaced the WA75-3?
The Komatsu WA75-4 succeeded the WA75-3 in the compact wheel loader lineup.
Serial-range & configuration variants
This page covers the Komatsu WA75-3(S/N HA950051-HA950856; WA85-3 S/N HA960051-HA960165). Related factory variants of the same model family:
WA75-3(30km/h Option S/N HA950051-HA951433 & H21408-UP; WA85-3 30km/h Option S/N HA960051-HA960218 & H20219-UP)WA75-3(S/N HA950857-HA951433 & H21408-UP; WA85-3 S/N HA960166-HA960218 & H20219-UP)
Need a specific WA75-3(S/N HA950051-HA950856; WA85-3 S/N HA960051-HA960165) part?
Search live OEM part data, check fitment, and cross-reference alternatives with Heavy Parts AI.