Komatsu WA320-3H(S/N WA320H20051-WA320H20560)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu WA320-3 is a mid-size wheel loader designed for loading sand, gravel, and dirt into conveyors, hoppers, and dump trucks. This series features a turbocharged engine and a 4-speed transmission, providing high breakout force for material handling tasks. The machine operates within a weight class typically ranging around 14,000 kg (30,754.5 lb) depending on specific configuration and attachments.
Evolution across the WA320 series has focused on integrating advanced telematics like KOMTRAX and enhanced emissions control via Tier 4 technology. The machine remains a staple in the used parts market due to its robust powertrain and the availability of Komatsu Genuine Lubricants. Its reliability in high-duty cycles makes it a primary target for fleet owners seeking durable, mid-range earthmoving capacity.
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 WA320-3H(S/N WA320H20051-WA320H20560) specifications
Engine
| Engine Model | S6D108 (varies by configuration) |
| Gross Power | 162.3 hp |
| Cylinders | 6 |
| Displacement | 436.4 cu in |
Weights
| Operating Weight | 29,431.8 lb |
| Static Tipping Weight | 25,198.9 lb (standard configuration); 24,559.5 lb (Active+ configuration) |
Dimensions
| Length With Bucket On Ground | 24.51 ft (standard); 24.32 ft (custom configuration); 24.14 ft (Active+ configuration) |
| Width Over Tires | 8.31 ft (standard); 8.49 ft (custom configuration); 8.46 ft (Active+ configuration) |
| Height To Top Of Cab | 10.65 ft (standard); 10.95 ft (custom configuration); 10.9 ft (Active+ configuration) |
| Wheelbase | 9.95 ft |
| Ground Clearance | 1.09 ft (standard); 1.32 ft (custom configuration); 1.24 ft (Active+ configuration) |
| Hinge Pin - Max Height | 12.52 ft (standard); 12.75 ft (custom configuration); 12.72 ft (Active+ configuration) |
| Reach At Max Lift And Dump | 3.63 ft (standard); 3.4 ft (custom configuration); 3.49 ft (Active+ configuration) |
| Dump Clearance At Max Raise | 9.13 ft (standard); 9.36 ft (custom configuration) |
Performance
| Max Speed - Forward | 21.2 mph |
| Max Speed - Reverse | 21.8 mph |
| Turning Radius | 20 ft |
| Breakout Force | 27,600 lb (standard); 28,326 lb (Active+ configuration) |
| Bucket Capacity - Heaped | 3.54 yd³ |
| Bucket Capacity - Struck | 3.01 yd³ |
Service capacities (summary)
| Fuel Tank | 58.4 gal (standard); 52.9 gal (custom configuration) |
| Engine Oil | 6.1 US gal |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
WA320-3H(S/N WA320H20051-WA320H20560) fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | 23 L (6.1 US gal) | EO (Engine Oil); verify with dealer for specific viscosity requirements based on climate |
| Cooling system | 35.1 L (9.3 US gal) | Komatsu Super-coolant AF-NAC |
| Fuel tank | 245 L (64.7 US gal) | Diesel Fuel |
| Transmission/powertrain compartments | 5.8 L (1.5 US gal) for transfer case | Komatsu Powertrain Oil |
| Axles/differentials | 27 L (7.1 US gal) front axle; 25.5 L (6.7 US gal) rear axle | AXO (Axle Oil) |
| Hydraulic system and tank | 92 L (24.3 US gal) | HO (Hydraulic Oil) |
| Grease | Not specified | G (Lithium Grease No. 2) |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Komatsu WA320-3H(S/N WA320H20051-WA320H20560) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
Servicing the WA320-3H(S/N WA320H20051-WA320H20560) beyond the schedule
Predictive Maintenance & Fluid Analysis
Utilize the KOWA (Komatsu Oil Wear Analysis) program to monitor engine oil and hydraulic fluids for wear metals like iron or copper. Regularly check coolant pH and SCA concentrations to prevent internal corrosion. Integrating KOMTRAX telematics allows for remote monitoring of fuel consumption, fault codes, and DEF levels, enabling proactive adjustments before component failure occurs.
Corrective & Common Repairs
Monitor hydraulic hoses for cracks or leaks to prevent pressure loss. Inspect articulation and steering pins regularly; if play exceeds factory limits, replace worn bushings. Ensure the fuel/water separator is drained daily to prevent injector damage. When replacing emission-related components, use only genuine Komatsu or approved rebuilt parts to maintain system integrity and compliance.
Overhaul & Rebuild Points
Plan for major hydraulic oil changes and transmission service at 2,000-hour intervals. During long-term rebuilds, evaluate the turbocharger for play and inspect structural welds on the boom and bucket. Check the KDPF (Diesel Particulate Filter) status; Komatsu typically provides exchange units around 4,500 hours to maintain exhaust efficiency and prevent engine backpressure issues.
Seasonal & Environment Servicing
In dusty environments, frequently inspect the air filter outer element and clean radiator/oil cooler fins to prevent overheating. For cold weather operation, ensure all hydraulic circuits are bled of air and check for fluid viscosity changes. During high-use seasons, increase frequency of grease applications to all pivot points, including the Z-bar linkage and bucket pins.
WA320-3H(S/N WA320H20051-WA320H20560) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 07281-00197 | Clamp,(With Pre-Fuel Filter) | Fuel system service | Check fitment → |
| 1267388H1 | Filter | Scheduled service item | Check fitment → |
| 1295155H1 | Filter Element | Scheduled service item | Check fitment → |
| 07063-01142 | Element, Filter - Hydraulic Tank | Scheduled service item | Check fitment → |
| 424-72-H1180 | Element | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
WA320-3H(S/N WA320H20051-WA320H20560) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| E10 | Engine controller power failure or engine management system malfunction | Faulty ECM power connections, blown fuses, or defective ground wires | Inspect ECM power connections, fuses, and ground wires |
| E11 | Engine protection active; output power reduced | High coolant temperature, low oil pressure, or clogged air filter | Check coolant temperature, engine oil pressure, and air filter condition |
| CA115 | Engine crankshaft speed sensor failure | Broken sensor, wiring harness damage, or connector corrosion | Replace the speed sensor and verify voltage at the pin connector |
| CA153 / CA154 | Intake air temperature sensor error (High/Low voltage) | Sensor short circuit or airflow restriction | Replace or test the intake air temperature (IAT) sensor and wiring |
| CA234 | Engine overspeed | Throttle calibration error, excessive engine load, or operator misuse | Verify throttle calibration and check engine load cycle |
| CA451 / CA452 | Common rail pressure error | Malfunctioning fuel rail pressure sensor or issues in the pump lines | Diagnose the fuel rail pressure sensor and inspect pump lines |
| E03 | Parking brake system fault or pressure sensor malfunction | Hydraulic pressure sensor damage or loose wiring | Inspect the hydraulic pressure sensor and associated wiring |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
WA320-3H(S/N WA320H20051-WA320H20560) attachments & work tools
Buckets and Material Handling
Standard configurations include various bucket options such as GP buckets and feed buckets with capacities ranging from 2.3 m³ (3.0 yd³) to 3.2 m³ (4.2 yd³). High lift booms are available to extend reach for diverse projects.
Mounting and Coupler Systems
The machine supports quick coupler options, including JRB hydraulic quick couplers. Some configurations feature a standard loader linkage with a standard lift arm.
Hydraulic and Control Options
Optional third spool hydraulics are available for auxiliary tools. These can utilize an integrated proportional control switch via the multi-function mono-lever, with settings for continual or proportional control via the monitor panel.
Guarding and Protection
Customizable waste guarding packages are offered to improve visibility. Specific protection includes bucket cylinder rod guards to prevent damage from falling debris and a vandalism protection kit featuring padlocks for battery boxes.
Additional Work Tools
The machine can be equipped with pallet forks for material handling. Cutting edge bolt-on types are also available as an option.
All WA320-3H(S/N WA320H20051-WA320H20560) assemblies by section
Every catalogued assembly group for the Komatsu WA320-3H(S/N WA320H20051-WA320H20560). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
01 Engine, Engine Mounting
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 01 Engine, Engine Mounting : 00 Maintenance Kit : Unit_02_of_02
| 07***75 | O-Ring,(F2310-52a0 -15 ) | 1 |
| 07***23 | O-Ring,(F4350-68a0 -13 ) | 1 |
| 12***H1 | Filter | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 01 Engine, Engine Mounting : 00 Maintenance Kit : Unit_01_of_02
| 07***75 | O-Ring,(F2310-52a0 -15 ) | 2 |
| 07***23 | O-Ring,(F4350-68a0 -13 ) | 1 |
| 07***42 | Element, Filter - Hydraulic Tank | 2 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 01 Engine, Engine Mounting : 01 Engine, Engine Mounting
| 01***45 | Bolt, Mounting Bracket To Radiator (Top) | 4 |
| 01***65 | Bolt, Mount Radiator To Frame (Bottom) | 4 |
| 01***50 | Bolt,(For Tbg/Abe Spec.) | 8 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 01 Engine, Engine Mounting : 02 Cylinder Block And Attaching Parts
| 67***60 | Oil Switch | 1 |
| 67***10 | Switch, Oil Pressure | 1 |
| 67***90 | Nozzle, Piston Cooling | 6 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 01 Engine, Engine Mounting : 03 Gasket Kit, Cylinder Block
| 67***00 | Gasket Kit,Cylinder Block | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 01 Engine, Engine Mounting : 04 Crank Assembly
| 12***91 | Connecting Rod Ass'Y | 6 |
| 12***92 | Piston Ring A.,Piston | 6 |
| 67***10 | Kit, Main Bearing - Standard | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 01 Engine, Engine Mounting : 05 Cylinder Head And Attaching Parts
| 12***H1 | Spring Seat | 6 |
| 67***70 | Seal, Valve Stem - Intake | 6 |
| 67***40 | Bolt (M12-1.75x25) | 2 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 01 Engine, Engine Mounting : 06 Gasket Kit, Cylinder Head
| 67***65 | Gasket Kit | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 01 Engine, Engine Mounting : 07 Cylinder Head Cover, Attaching Parts
| 07***80 | Clip | 1 |
| 07***10 | Hose | 1 |
| 08***36 | Tie, Cable | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 01 Engine, Engine Mounting : 08 Timing Gear Case And Flywheel Housing
| 13***H1 | Housing,Flywheel | 1 |
| 67***20 | Seal, Rectangular Ring | 1 |
| 67***30 | Plate, Cover | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 01 Engine, Engine Mounting : 09 Engine Timing Gear
| 12***H2 | Camshaft | 1 |
| 67***20 | Support, Camshaft Thrust | 1 |
| 67***60 | Bolt (M8x1.25x22) | 2 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 01 Engine, Engine Mounting : 10 Engine Lubrication
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 2 |
| 07***12 | Gasket,Oil Pan Drain | 2 |
| 07***18 | Joint, Oil Pan Drain Tube | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 01 Engine, Engine Mounting : 14 Oil Filter
| 12***H1 | Compression Spring | 1 |
| 12***H1 | O-Ring | 1 |
| 12***H1 | Filter Element | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 01 Engine, Engine Mounting : 15 Water Pump
| 67***20 | Seal, O-Ring | 1 |
| 67***10 | Screw | 3 |
| 67***16 | Water Pump | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 01 Engine, Engine Mounting : 17 Fan, Belt Tensioner
| 01***10 | Screw | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 67***10 | Spacer,Fan | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 01 Engine, Engine Mounting : 19 Cooling System
| 12***H1 | Filter | 1 |
| 67***30 | Plug, Pipe (1/8 Nptf) | 1 |
| 67***20 | Sensor, Temperature Coolant | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 01 Engine, Engine Mounting : 20 Injection System
| 13***91 | Overflow Oil Line | 1 |
| 67***90 | Valve, Check (M8x1.25x17.5) | 1 |
| 67***30 | Seal, Injector (For 7mm Head) | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 01 Engine, Engine Mounting : 21 Injection Pump
| 41***01 | By Pass Valve | 1 |
| 41***02 | O-Ring | 1 |
| 41***03 | O-Ring | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 01 Engine, Engine Mounting : 26 Fuel Pump
| 67***10 | Pump,Lift | 1 |
| CU***48 | Gasket | 1 |
| CU***61 | Banjo Bolt | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 01 Engine, Engine Mounting : 27 Injection Pump Drive
| 42***20 | O-Ring | 1 |
| 67***80 | Stud Bolt | 2 |
| 67***70 | Nut, Hex Flange (M10-1.50 Thd) | 4 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 01 Engine, Engine Mounting : 28 Fuel System, Pre Filter
| 01***55 | Bolt, Mount Standard Weight | 3 |
| 01***10 | Screw,(For Lighter) | 5 |
| 01***16 | Bolt - Starting Motor Ground Cable | 6 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 01 Engine, Engine Mounting : 30 Fuel System, Filter
| 13***H1 | Hose | 1 |
| 41***01 | Seal | 1 |
| 67***90 | Clamp, Hose | 2 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 01 Engine, Engine Mounting : 47 Intake Manifold, Turbocharger
| 67***20 | Gasket, Exhaust Manifold | 1 |
| 67***50 | Tab Washer | 12 |
| CU***48 | Cover | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 01 Engine, Engine Mounting : 48 Turbocharger
| CU***87 | Stud | 1 |
| CU***62 | Hose Assembly | 1 |
| CU***78 | Turbocharger | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 01 Engine, Engine Mounting : 49 Air Filter System, Standard
| 01***30 | Bolt,(For Mechanical Governor) | 2 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 01 Engine, Engine Mounting : 56 Ether Starting Kit
| 01***16 | Bolt, Mounting Transmission Control Switch | 2 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
| 01***05 | Nut,Voice Alarm | 2 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 01 Engine, Engine Mounting : 57 Exhaust System
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 10 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 01 Engine, Engine Mounting : 60 Engine Control : Unit_01_of_02
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***70 | Screw | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 01 Engine, Engine Mounting : 60 Engine Control : Unit_02_of_02
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,See Fig. K4010-17a0 | 3 |
| 01***16 | Bolt - Starting Motor Ground Cable | 3 |
02 Cooling System
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 02 Cooling System : 73 Radiator
| 01***20 | Bolt,(With Auto Emergency Steering) | 8 |
| 01***60 | Bolt, Mount Tube To Switch Pump | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 02 Cooling System : 75 Hydraulic Oil Cooling
| 01***16 | Bolt - Starting Motor Ground Cable | 2 |
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 1 |
| 01***11 | Nut,(With Under Mirror) | 2 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 02 Cooling System : 77 Cooling Water Pipes
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 4 |
| 01***16 | Bolt - Starting Motor Ground Cable | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 02 Cooling System : 79 Transmission Oil Cooling
| 01***16 | Bolt - Starting Motor Ground Cable | 11 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 2 |
03 Electric System
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 03 Electric System : 41 Alternator And Starter Motor
| 67***30 | Alternator A. (50a) | 1 |
| 67***30 | Starting Motor Ass'Y | 1 |
| 67***26 | Gasket, Starter | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 03 Electric System : 42 Alternator
| 13***H1 | Pulley | 1 |
| 41***02 | Nut | 1 |
| 41***05 | Ventilator | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 03 Electric System : 43 Starter Motor
| 41***02 | Bushing | 1 |
| 41***03 | Disc | 1 |
| 41***04 | Anchor | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 03 Electric System : 56 Electric System, Lighting Unit : Unit_01_of_02
| 01***08 | Screw, Terminal | 2 |
| 01***12 | Screw,(For Side Lamp) (Not Shown) | 4 |
| 01***25 | Screw - Antenna Mounting | 2 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 03 Electric System : 56 Electric System, Lighting Unit : Unit_02_of_02
| 01***22 | Screw | 4 |
| 01***12 | Screw,(For Side Lamp) (Not Shown) | 4 |
| 01***25 | Screw - Antenna Mounting | 2 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 03 Electric System : 61 Electric System
| 01***10 | Screw | 1 |
| 01***12 | Screw | 10 |
| 01***12 | Screw | 2 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 03 Electric System : 62 Electric System, Relay
| 01***12 | Screw,(For Side Lamp) (Not Shown) | 2 |
| 01***10 | Bolt - Relay And Flasher Mounting | 8 |
| 01***16 | Bolt, Mounting Transmission Control Switch | 4 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 03 Electric System : 64 Instrument Box And Attaching Parts
| 01***10 | Washer,(Except Japan) | 12 |
| 01***05 | Washer,(Except Japan) | 12 |
| 08***03 | Bulb? 3w,Turn Signal Lamp | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 03 Electric System : 66 Windshield-Wiper - Washer System : Unit_01_of_02
| 01***16 | Screw,(P.O.C. Model) (Except Japan) | 2 |
| 01***16 | Bolt, Mounting Transmission Control Switch | 4 |
| 01***12 | Bolt,(With Speedometer) | 2 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 03 Electric System : 66 Windshield-Wiper - Washer System : Unit_02_of_02
| 01***16 | Screw,(P.O.C. Model) (Except Japan) | 2 |
| 01***16 | Bolt, Mounting Transmission Control Switch | 4 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 03 Electric System : 68 Radio
| 42***68 | Orifice Plate | 1 |
| 42***50 | Cladding | 1 |
| 42***10 | Harness | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 03 Electric System : 70 Turning Light
| 01***16 | Screw | 4 |
| 01***20 | Screw | 3 |
| 01***16 | Bolt, Mount Solenoid Valve | 4 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 03 Electric System : 71 Back Up Alarm
| 01***16 | Washer,(For 35a Alternator) | 8 |
| 42***20 | Horn | 1 |
| 42***91 | Harness, Back-Up Alarm | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 03 Electric System : 74 Battery
| 01***65 | Bolt,(With Canvas Or Rops Canopy) | 2 |
| 01***40 | Screw | 4 |
| 01***08 | Screw, Terminal | 6 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 03 Electric System : 75 Battery Main Switch
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***05 | Nut,(For Air Conditioner Less), Nut | 2 |
04 Transmission, Universal Joint
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 04 Transmission, Universal Joint : 75 Universal Joint
| 01***60 | Bolt, Hanger Bearing Mounting | 4 |
| 01***15 | Screw | 1 |
| 01***45 | Screw | 20 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 04 Transmission, Universal Joint : 78 Torque Converter
| 01***25 | Screw | 32 |
| 01***55 | Screw | 8 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 32 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 04 Transmission, Universal Joint : 82 Shifting And Converter Pump
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***32 | Washer, (Without Emergency Steering) | 8 |
| 01***32 | Washer, (Without Emergency Steering) | 8 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 04 Transmission, Universal Joint : 85 Powershift Transmission
| 07***23 | O-Ring,(F4350-68a0 -13 ) | 1 |
| 07***09 | Plug, Oil Drain | 1 |
| 41***00 | Filter Assembly (See Pg F-058) | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 04 Transmission, Universal Joint : 88 Gears And Shafts
| 04***20 | Ring, Retaining | 1 |
| 04***20 | Ring, Retainer | 1 |
| 04***04 | Ring, Snap | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 04 Transmission, Universal Joint : 89 Pressure Redulating Valve
| 01***25 | Screw | 4 |
| 07***14 | O-Ring,(F4350-63a1a-2 ) | 1 |
| 07***38 | Ring, Seal - Between Sections | 3 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 04 Transmission, Universal Joint : 92 Powershift Transmission, Control Valv
| 01***25 | Bolt,(Without Auto Priming System) | 16 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 1 |
| 01***45 | Bolt,(For Suction? Reversible Fan) | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 04 Transmission, Universal Joint : 94 Transmission Shift
| 01***08 | Screw, Mount Damper To Shaft | 6 |
| 01***12 | Screw | 2 |
| 01***08 | Screw, Terminal | 9 |
05 Rear Axle
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 05 Rear Axle : 43 Rear Axle
| 01***60 | Washer,(Without Rops Guard? Canopy) | 30 |
| 41***70 | Bolt, Mounting Rear Wheels | 30 |
| 41***01 | Axle Assembly, Rear | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 05 Rear Axle : 44 Axle Insert
| 01***40 | Capscrew - M12 X 1.75 X 40lg | 56 |
| 01***40 | Capscrew | 10 |
| 01***15 | Screw | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 05 Rear Axle : 45 Differential
| 01***40 | Screw | 12 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 12 |
| 41***00 | Differential | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 05 Rear Axle : 47 Planetary Drive, Brake
| 01***10 | Screw | 2 |
| 01***60 | Washer,(Without Rops Guard? Canopy) | 30 |
| 41***60 | Shaft Seal | 2 |
06 Disc Wheel, Chain
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 06 Disc Wheel, Chain : 77 Disc Wheel
| 41***04 | Side Ring | 1 |
| 41***05 | Circlip | 1 |
| 41***10 | Rim | 4 |
07 Steering
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 07 Steering : 00 Steering, Steering Mounting
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***20 | Capscrew | 2 |
| 01***50 | Screw | 3 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 07 Steering : 01 Steering Column
| 01***12 | Bolt,(See Fig. K0210-16a0) | 4 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 4 |
| 01***30 | Bolt, Mounting - Front Hand Rails | 4 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 07 Steering : 02 Steering Unit
| 41***30 | Cap, End | 1 |
| 41***60 | Plate, Spacer | 1 |
| 41***70 | Drive | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 07 Steering : 05 Steering, Pipings
| 01***16 | Bolt - Starting Motor Ground Cable | 4 |
| 01***11 | Nut,(With Under Mirror) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 07 Steering : 06 Steering Cylinder And Pipings
| 01***20 | Bolt,(Forwarded Individually Parts) | 2 |
| 01***45 | Bolt, Bracket Mounting | 7 |
| 01***11 | Nut,(With Under Mirror) | 16 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 07 Steering : 07 Steering Cylinder
| 07***70 | O-Ring,(For Intake Air Cover) | 1 |
| 07***65 | O-Ring,(F5350-62a0 -14 ) | 1 |
| 07***08 | Plug,(For W/O. Corrosion Resistor) | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 07 Steering : 08 Emergency Steering Pump And Pipings : Unit_01_of_02
| 01***16 | Bolt (With Air Heater & Conditioner) | 5 |
| 01***25 | Bolt,Without Revolution Sensor | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 3 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 07 Steering : 08 Emergency Steering Pump And Pipings : Unit_02_of_02
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***20 | Screw | 3 |
| 01***70 | Screw | 12 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 07 Steering : 09 Emergency Steering Pump
| 04***12 | Ring,Snap (For Ripper) | 1 |
| 42***00 | Ball Bearing | 1 |
| 42***10 | Ring | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 07 Steering : 14 Relief Valve Jet
| 41***10 | Seal Kit, Cushion Valve | 1 |
| 41***30 | Poppet | 2 |
| 41***40 | Compression Spring | 2 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 07 Steering : 16 Priority Valve
| 01***90 | Bolt,With Cover | 4 |
| 01***45 | Bolt, Bracket Mounting | 3 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 6 |
08 Front Axle
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 08 Front Axle : 00 Front Axle
| 01***45 | Bolt,(For L=529mm Pin) | 8 |
| 01***19 | Nut | 8 |
| 01***60 | Washer,(Without Rops Guard? Canopy) | 46 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 08 Front Axle : 01 Axle Insert
| 01***40 | Capscrew - M12 X 1.75 X 40lg | 56 |
| 01***40 | Capscrew | 10 |
| 01***15 | Screw | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 08 Front Axle : 02 Differential
| 01***95 | Screw | 12 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 12 |
| 17***80 | Pin..(Included In Case Ass'Y) | 4 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 08 Front Axle : 04 Planetary Drive, Brake
| 01***10 | Screw | 2 |
| 01***60 | Washer,(Without Rops Guard? Canopy) | 30 |
| 41***60 | Shaft Seal | 2 |
09 Brake System
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 09 Brake System : 00 Brake System : Unit_02_of_02
| 01***10 | Bolt,For Weight Adjusting Bolt | 4 |
| 01***30 | Screw | 4 |
| 01***30 | Bolt, Mounting - Front Hand Rails | 2 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 09 Brake System : 00 Brake System : Unit_01_of_02
| 01***40 | Bolt,(With Air Conditioner) | 4 |
| 01***50 | Screw | 1 |
| 01***16 | Bolt - Starting Motor Ground Cable | 3 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 09 Brake System : 01 Brake Piping, Front Axle : Unit_01_of_04
| 01***40 | Capscrew - M12 X 1.75 X 40lg | 1 |
| 01***16 | Bolt - Starting Motor Ground Cable | 8 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 4 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 09 Brake System : 01 Brake Piping, Front Axle : Unit_03_of_04
| 01***45 | Screw | 6 |
| 01***16 | Bolt - Starting Motor Ground Cable | 6 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 5 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 09 Brake System : 01 Brake Piping, Front Axle : Unit_02_of_04
| 01***45 | Screw | 6 |
| 01***16 | Bolt - Starting Motor Ground Cable | 3 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 4 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 09 Brake System : 01 Brake Piping, Front Axle : Unit_04_of_04
| 01***45 | Screw | 6 |
| 01***16 | Bolt - Starting Motor Ground Cable | 6 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 5 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 09 Brake System : 02 Brake Piping, Rear Axle : Unit_02_of_02
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***16 | Bolt - Starting Motor Ground Cable | 2 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 4 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 09 Brake System : 02 Brake Piping, Rear Axle : Unit_01_of_02
| 01***40 | Capscrew - M12 X 1.75 X 40lg | 1 |
| 01***16 | Bolt - Starting Motor Ground Cable | 5 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 4 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 09 Brake System : 05 Pressure Tank
| 72***10 | Pressure Tank | 1 |
| 72***20 | Packing Kit | 1 |
| 72***30 | Packing Kit | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 09 Brake System : 06 Pressure Regulator
| 07***11 | O-Ring,(Tm8202-009) | 1 |
| 07***14 | O-Ring,(Without Maintenance Monitor) | 1 |
| 07***18 | O-Ring (Kit) | 2 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 09 Brake System : 15 Brake Valve : Unit_02_of_02
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 1 |
| 41***10 | Safety Catch | 1 |
| 41***50 | Screw | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 09 Brake System : 15 Brake Valve : Unit_01_of_02
| 01***20 | Screw | 1 |
| 01***25 | Bolt,See Fig. K4010-65a0 | 4 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 09 Brake System : 90 Hand Brake And Operating Assembly
| 01***25 | Screw | 2 |
| 01***10 | Bolt - Relay And Flasher Mounting | 2 |
| 01***16 | Bolt - Starting Motor Ground Cable | 5 |
10 Frame
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 10 Frame : 00 Front Frame
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 10 |
| 01***45 | Bolt, Mounting Bracket To Radiator (Top) | 6 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 10 Frame : 01 Rear Frame
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***50 | Screw | 4 |
| 01***90 | Bolt, Adjusting | 4 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 10 Frame : 04 Rear Frame, Lubrication Pipe
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 04***10 | Clip - Fuel Sensor Harness | 1 |
| 07***75 | Fitting,Grease (Without Lub. Piping) | 3 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 10 Frame : 06 Fender
| 01***30 | Bolt,(Not Used With Emergency Str.) | 6 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 6 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 6 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 10 Frame : 08 Bonnet
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 4 |
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 24 |
| 01***03 | Nut; Was 01508-20603, Nut? L.H. Thread,L.H. Thread | 2 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 10 Frame : 12 Counterweight
| 01***75 | Screw | 4 |
| 01***90 | Bolt, Adjusting | 4 |
| 01***32 | Threaded Bush | 4 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 10 Frame : 14 Platform
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***10 | Screw | 2 |
| 01***12 | Bolt,(See Fig. K0210-16a0) | 4 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 10 Frame : 15 Radiator Guard And Bonnet : Unit_02_of_02
| 01***40 | Bolt,R.H. Outside And L.H. Inside, Bolt | 8 |
| 01***12 | Screw,(For Side Lamp) (Not Shown) | 5 |
| 01***55 | Screw | 4 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 10 Frame : 15 Radiator Guard And Bonnet : Unit_01_of_02
| 01***40 | Bolt,R.H. Outside And L.H. Inside, Bolt | 8 |
| 01***12 | Screw,(For Side Lamp) (Not Shown) | 5 |
| 01***55 | Screw | 4 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 10 Frame : 16 Ladder
| 01***45 | Bolt, Mounting Bracket To Radiator (Top) | 2 |
| 01***16 | Bolt - Starting Motor Ground Cable | 8 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 8 |
11 Drivers Cab
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 11 Drivers Cab : 00 Safety Cabin : Unit_02_of_02
| 01***45 | Bolt, Fuel Tank Mounting - Front Right | 8 |
| 01***40 | Screw | 2 |
| 01***16 | Screw | 2 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 11 Drivers Cab : 00 Safety Cabin : Unit_01_of_02
| 01***45 | Bolt, Fuel Tank Mounting - Front Right | 8 |
| 01***40 | Screw | 2 |
| 01***16 | Screw | 3 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 11 Drivers Cab : 01 Safety Cabin, Doors : Unit_02_of_03
| 01***16 | Washer,(For 35a Alternator) | 2 |
| 41***40 | Hinge (Welded) | 2 |
| 42***60 | Plain Washer | 2 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 11 Drivers Cab : 01 Safety Cabin, Doors : Unit_01_of_03
| 01***25 | Bolt,Without Revolution Sensor | 4 |
| 01***12 | Screw | 14 |
| 01***16 | Screw | 2 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 11 Drivers Cab : 01 Safety Cabin, Doors : Unit_03_of_03
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 2 |
| 01***12 | Screw,(With Articulate Indicator) | 8 |
| 01***25 | Bolt - Relay Mounting | 16 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 11 Drivers Cab : 04 R.O.P.S Canopy
| 01***75 | Screw | 8 |
| 01***35 | Bolt, Hydraulic Tank Mounting | 1 |
| 01***00 | Screw | 8 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 11 Drivers Cab : 11 Soundproofing Of Cabin
| 01***12 | Bolt, Bolt,(No Need To Quick Shift) | 2 |
| 01***25 | Bolt,(For Automatic) | 4 |
| 01***10 | Bolt - Relay And Flasher Mounting | 3 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 11 Drivers Cab : 12 Soundproof
| 01***20 | Bolt - Mount Risers To Cab Floor | 8 |
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 8 |
| 01***35 | Bolt,R.H. (For Add. Air Compressor) | 4 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 11 Drivers Cab : 17 Ventilation
| 01***12 | Screw,(Not Shown) (For Std Cab) | 4 |
| 01***12 | Bolt,(See Fig. K0210-16a0) | 4 |
| 01***16 | Bolt, Mounting Transmission Control Switch | 8 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 11 Drivers Cab : 18 Heater : Unit_01_of_02
| 01***16 | Bolt, Mounting Transmission Control Switch | 2 |
| 01***16 | Bolt - Starting Motor Ground Cable | 7 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 11 Drivers Cab : 18 Heater : Unit_02_of_02
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***16 | Bolt, Mounting Transmission Control Switch | 2 |
| 01***16 | Bolt - Starting Motor Ground Cable | 7 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 11 Drivers Cab : 19 Air Conditioner
| 01***16 | Bolt, Mounting Transmission Control Switch | 4 |
| 07***89 | Clamp,(D31s) | 2 |
| 42***30 | Finisher | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 11 Drivers Cab : 27 Drivers Seat, Attaching Parts
| 01***40 | Bolt,(For Position Fixing) | 2 |
| 01***25 | Bolt,Without Revolution Sensor | 4 |
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 4 |
12 Tools, Accessory, Lettering
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 12 Tools, Accessory, Lettering : 00 Wedge And Attachement
| 04***10 | Pin,Cotter? (For Ripper) | 2 |
| 41***20 | Underl Wedge | 2 |
| 41***40 | Bonnet Fastener | 2 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 12 Tools, Accessory, Lettering : 01 Tools And Accessory
| 01***90 | Screw | 1 |
| 01***16 | Bolt, Mounting Transmission Control Switch | 2 |
| 01***06 | Nut,L.H. Thread (For Russian) | 4 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 12 Tools, Accessory, Lettering : 02 Tools
| 07***03 | Cartridge - Grease | 1 |
| 09***06 | Wrench Set,8x10? 12x14? 13x17? | 1 |
| 09***00 | Wrench - Adjustable | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 12 Tools, Accessory, Lettering : 03 Lettering
| 09***80 | Plate? Mark,Komatsu? Front | 2 |
| 09***60 | Decal, Komatsu (Black Lettering) (Behind Driver'S Door) | 2 |
| 41***40 | Plate? Mark,Komatsu | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 12 Tools, Accessory, Lettering : 04 Decals, German
| 09***00 | Plate? Safety,Accumulator Warning | 6 |
| 09***00 | Tag,Do Not Operate (German) | 1 |
| 41***20 | Note Plate | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 12 Tools, Accessory, Lettering : 05 Decals, English
| 09***00 | Plate? Safety,(English) (Lettering Type) | 6 |
| 09***00 | Tag,(For South And North America) | 1 |
| 41***30 | Note Plate | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 12 Tools, Accessory, Lettering : 06 Decals, French
| 09***00 | Decal, Safety, Explosion Hazard | 6 |
| 09***00 | Tag,(For South And North America) | 1 |
| 41***30 | Note Plate | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 12 Tools, Accessory, Lettering : 08 Decals, Italian
| 09***00 | Plate? Safety,Accumulator | 6 |
| 41***30 | Note Plate | 1 |
| 42***50 | Decal | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 12 Tools, Accessory, Lettering : 09 Decals, Spanish
| 09***00 | Plate? Safety,Acc.(Spanish)(Cen.Sou.America) | 6 |
| 41***30 | Note Plate | 1 |
| 42***50 | Decal | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 12 Tools, Accessory, Lettering : 10 Decals, Swedish
| 41***30 | Note Plate | 1 |
| 42***50 | Decal | 2 |
| 42***60 | Decal | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 12 Tools, Accessory, Lettering : 11 Decals, Danish
| 41***30 | Note Plate | 1 |
| 42***50 | Decal | 2 |
| 42***80 | Decal | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 12 Tools, Accessory, Lettering : 12 Decals, Finnish
| 41***30 | Note Plate | 1 |
| 42***50 | Decal | 2 |
| 42***20 | Decal | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 12 Tools, Accessory, Lettering : 13 Decals, Norwegian
| 41***30 | Note Plate | 1 |
| 42***50 | Decal | 2 |
| 42***00 | Decal | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 12 Tools, Accessory, Lettering : 14 Decals, Dutch
| 41***30 | Note Plate | 1 |
| 42***50 | Decal | 2 |
| 42***60 | Decal | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 12 Tools, Accessory, Lettering : 15 Decals, Portuguese
| 41***30 | Note Plate | 1 |
| 42***50 | Decal | 2 |
| 42***40 | Decal | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 12 Tools, Accessory, Lettering : 16 Decals, Greek
13 Hydraulic System
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 13 Hydraulic System : 00 Pumps For Hydraulic System : Unit_01_of_02
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***32 | Washer, (Without Emergency Steering) | 4 |
| 01***45 | Washer, Spring | 8 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 13 Hydraulic System : 00 Pumps For Hydraulic System : Unit_02_of_02
| 42***08 | Packing Kit | 1 |
| 42***09 | Coupling/Clutch | 2 |
| 42***51 | Repair Kit | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 13 Hydraulic System : 06 Oil Tank
| 01***30 | Bolt,(For Rubber Shoe) | 1 |
| 01***35 | Bolt, Hydraulic Tank Mounting | 2 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 6 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 13 Hydraulic System : 08 Pipings For Remote Control Valve : Unit_02_of_02
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 01***55 | Bolt, Mount Dryer To Bracket And Frame | 4 |
| 04***10 | Clip | 2 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 13 Hydraulic System : 08 Pipings For Remote Control Valve : Unit_01_of_02
| 01***16 | Bolt - Starting Motor Ground Cable | 4 |
| 01***11 | Nut,(With Under Mirror) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 13 Hydraulic System : 09 Remote Control Valve
| 07***20 | O-Ring,Relief Valve | 4 |
| 07***12 | Plug,Taper | 2 |
| 70***05 | Valve Assembly, P.P.C. - Two-Spool | 1 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 13 Hydraulic System : 10 Pressure Pipings To Control Valve
| 01***35 | Screw | 4 |
| 01***35 | Screw | 12 |
| 01***40 | Screw | 8 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 13 Hydraulic System : 11 Control Valve,Return Pipings
| 01***35 | Screw | 12 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
| 01***11 | Nut,(With Under Mirror) | 2 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 13 Hydraulic System : 12 Control Valve
| 01***85 | Bolt, Control Valve Mounting | 2 |
| 01***90 | Bolt,For Reversible Fan | 1 |
| 01***55 | Bolt, Mount Lh Bracket | 4 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 13 Hydraulic System : 25 Lift Cylinder And Pipings
| 01***65 | Screw | 16 |
| 01***35 | Screw | 8 |
| 01***45 | Bolt, Bracket Mounting | 8 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 13 Hydraulic System : 26 Lift Cylinder
| 01***55 | Bolt,(For Shipping) | 12 |
| 01***40 | Screw | 6 |
| 01***45 | Washer,(For Quick Shift) (Mitsubishi) | 12 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 13 Hydraulic System : 27 Bucket Cylinder And Pipings
| 01***05 | Bolt, Mount Tube | 2 |
| 01***65 | Screw | 4 |
| 01***35 | Screw | 16 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 13 Hydraulic System : 28 Bucket Cylinder
| 01***60 | Capscrew | 12 |
| 01***40 | Screw | 6 |
| 01***45 | Washer, Spring | 12 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 13 Hydraulic System : 40 Pipings For Accessory Equipment : Unit_02_of_02
| 01***35 | Screw | 32 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 4 |
| 01***45 | Bolt, Bracket Mounting | 4 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 13 Hydraulic System : 40 Pipings For Accessory Equipment : Unit_01_of_02
| 01***35 | Bolt,(For Position Fixing) | 16 |
| 01***35 | Screw | 8 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 4 |
14 Boom, Thrust Frame - Arm
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 14 Boom, Thrust Frame - Arm : 00 Boom
| 01***25 | Bolt,(For High High Lift) | 11 |
| 01***30 | Bolt,(For Rubber Shoe) | 2 |
| 01***08 | Washer,(For 1 Attachment And Pat) | 8 |
15 Equipment
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 15 Equipment : 00 Bucket
| 41***50 | Holder,Tooth (Welded) | 8 |
| 41***60 | Tooth | 8 |
| 41***70 | Safety Catch | 8 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 15 Equipment : 10 Ripper Tooth Wear Plate And Marker Li
| 01***70 | Bolt, Mount Bracket And Oil Inlet Tube, Bolt | 2 |
| 01***16 | Screw,(P.O.C. Model) (Except Japan) | 4 |
| 01***50 | Wing Nut | 2 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 15 Equipment : 12 Bucket Position Indicator : Unit_01_of_02
| 01***35 | Screw | 2 |
| 01***16 | Bolt - Starting Motor Ground Cable | 2 |
| 01***20 | Bolt - Mount Risers To Cab Floor | 4 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 15 Equipment : 12 Bucket Position Indicator : Unit_02_of_02
| 01***20 | Bolt - Mount Risers To Cab Floor | 4 |
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 2 |
| 01***35 | Bolt,R.H. (For Add. Air Compressor) | 2 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 15 Equipment : 62 A.L.S. Equipment
| 01***35 | Screw | 12 |
| 01***20 | Bolt - Mount Risers To Cab Floor | 4 |
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 4 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 15 Equipment : 70 Central Lubrication
| 42***10 | Screw | 7 |
| 42***60 | Plain Washer | 3 |
| 42***70 | Nut | 10 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 15 Equipment : 82 E.C.S.S. Electrical Equipment
| 01***16 | Bolt, Mount Solenoid Valve | 8 |
| 01***16 | Bolt - Starting Motor Ground Cable | 11 |
| 04***10 | Clip,(With Accumulator) | 3 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 15 Equipment : 82 E.C.S.S. Pressure Tank,Solenoid Valve And Pipes : Unit_02_of_04
| 01***15 | Screw | 2 |
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 8 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 2 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 15 Equipment : 82 E.C.S.S. Pressure Tank,Solenoid Valve And Pipes : Unit_04_of_04
| 01***15 | Screw | 2 |
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 8 |
| 01***19 | Washer,Spring (With Extinguisher) (D31p) | 2 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 15 Equipment : 82 E.C.S.S. Pressure Tank,Solenoid Valve And Pipes : Unit_01_of_04
| 01***15 | Screw | 2 |
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 8 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 2 |
Komatsu : Wa320-3h(S/N Wa320h20051-Wa320h20560) : 15 Equipment : 82 E.C.S.S. Pressure Tank,Solenoid Valve And Pipes : Unit_03_of_04
| 01***15 | Screw | 2 |
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 8 |
| 01***19 | Washer,Spring (With Extinguisher) (D31p) | 2 |
WA320-3H(S/N WA320H20051-WA320H20560) serial number reference
The PIN plate is located on the front frame of the wheel loader, typically on the right-hand side of the articulation joint. To read the prefix, identify the first three characters of the serial number sequence following the model designation.
| Prefix | Identifies | Notes |
|---|---|---|
| WA320H | WA320-3H | Identifies the WA320-3H series. This specific serial range (WA320H20051–WA320H20560) is associated with the SAA6D114 engine model. The machine utilizes Komatsu EO, TO, AXO, and HO fluids for various systems. Confirm with dealer for exact configuration-specific details. |
Frequently asked questions
What engine is used in this model?
The WA320-3 series utilizes a turbocharged diesel engine; specific designations vary by regional emissions package (e.g., S6D114E-1).
What is the operating weight of the machine?
Operating weight varies by configuration, but for the WA320-3 Active+ variant, it is approximately 30,754.5 lb (13,950 kg).
What model replaced the WA320-3?
The series progressed through subsequent generations including the WA320-5 and the Tier 4 compliant WA320-8.
What WA320-3H(S/N WA320H20051-WA320H20560) owners discuss
What are common transmission behaviors and issues observed during gear changes on the WA320-3 series?
What should be inspected if the transmission is overheating or failing to move the loader?
What is a known cause for sudden stops or brake lockup in this machine type?
What are common electrical or sensor-related symptoms on the WA320-3 dashboard?
What engine and fluid specifications apply to the WA320-3 (S/N 20051-20560)?
What should be checked when buying a used WA320-3H (S/N 20051-20560)?
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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