Komatsu WA320-3-BO(S/N 50001-UP (FOR BOSNIAN/CHASSIS ONLY))
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu WA320-3-BO (S/N 50001-UP) is a mid-size wheel loader designed for versatile material handling, including loading sand, gravel, and dirt. This specific chassis configuration belongs to the WA320-3 series, featuring a turbocharged engine with a displacement of 8,270 cc (505 cu in). The machine operates within a weight class typically ranging near 16,000 kg (35,000 lb) depending on specific attachments and configurations.
The WA320-3 series represents a refined generation of Komatsu's mid-size loader lineage, following earlier iterations like the WA320-1. In today's used market, this machine remains significant due to its robust powertrain and the availability of Komatsu CARE and KOWA fluid analysis data for well-maintained units. Its durability in heavy-duty cycles makes it a primary target for fleet owners seeking reliable performance without the high entry cost of Tier 4 Final models.
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 WA320-3-BO(S/N 50001-UP (FOR BOSNIAN/CHASSIS ONLY)) specifications
Engine
| Model | S6D114E-1 / 419 (for serial range H20561 and up); Cummins 6CT8.3 (for serial range H20001 - H20560) |
| Gross Power | 152.9 hp |
| Displacement | 8,270 cc (504.7 cu in) |
| Cylinders | 6 |
| Type | 4-cycle, water-cooled, in-line, direct injection, with turbocharger |
Weights
| Operating Weight | 13,350 kg (29,431.8 lb) |
| Distribution (Front) | 5,975 kg |
| Distribution (Rear) | 7,095 kg |
Dimensions
| Length with Bucket on Ground | 7.41 m (24.32 ft) |
| Width Over Tires | 2.59 m (8.49 ft) |
| Height to Top of Cab | 3.34 m (10.95 ft) |
| Wheelbase | 3.03 m (9.95 ft) |
| Ground Clearance | 0.40 m (1.32 ft) |
| Bucket Width | 2.74 m (8.99 ft) |
| Dump Clearance at Max Raise | 2.85 m (9.36 ft) |
| Reach at Max Lift and Dump | 1.04 m (3.4 ft) |
Performance
| Max Speed - Forward | 34.1 km/h (21.2 mph) |
| Max Speed - Reverse | 35.1 km/h (21.8 mph) |
| Bucket Capacity - Struck | 3.01 yd³ |
| Bucket Capacity - Heaped | 3.54 yd³ |
| Turning Radius (at center of outside tire) | 20 ft (6.1 m) |
| Transmission Gears | 4 Forward / 4 Reverse |
Service capacities (summary)
| Fuel Capacity | 52.9 gal |
| Battery | 12 V, 143 Ah x 2 |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
WA320-3-BO(S/N 50001-UP (FOR BOSNIAN/CHASSIS ONLY)) fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | 23 L (6.1 US gal) | Komatsu genuine oil; API CD or CC (reduce change interval if using CC) or SAE 10W-30, 15W-40 single grade matching temperature |
| Cooling system | 35.1 L (9.3 US gal) | Komatsu Super-coolant AF-NAC |
| Fuel tank | 245 L (64.7 US gal) | Not specified |
| Transmission/powertrain compartments | Not specified | Komatsu genuine oil |
| Axle front | 27 L (7.1 US gal) | Not specified |
| Axle rear | 25.5 L (6.7 US gal) | Not specified |
| Hydraulic system and tank | 92 L (24.3 US gal) | Komatsu genuine hydraulic oil |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Komatsu WA320-3-BO(S/N 50001-UP (FOR BOSNIAN/CHASSIS ONLY)) 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 WA320-3-BO(S/N 50001-UP (FOR BOSNIAN/CHASSIS ONLY)) beyond the schedule
Predictive Maintenance & Fluid Analysis
Utilize KOWA (Komatsu Oil Wear Analysis) at every major service interval to monitor engine oil, hydraulic fluid, and coolant. Analyze for wear metals like iron or copper, and contaminants such as silicon or sodium. For the WA320-3-BO, tracking particle counts in hydraulic oil is critical to prevent pump failure. Use KOMTRAX telematics to remotely monitor fuel consumption, fault codes, and DEF levels to anticipate component fatigue.
Corrective & Common Repairs
Monitor the hydraulic system for clarity; cloudy fluid indicates water or air contamination. Inspect the transmission for clutch-related issues during gear transitions. Check the turbocharger and intake manifold sensors if engine performance drops. For this chassis, ensure all pins and bushings are inspected for excessive play. If cracks appear in structural components, evaluate if the depth exceeds one-third of the part thickness before deciding to repair or replace.
Overhaul & Rebuild Points
Plan major interventions around the 2,000-hour and 4,500-hour milestones. Key rebuild points include hydraulic oil changes, transmission service, and coolant flushes. At approximately 4,500 hours, prepare for a Komatsu Diesel Particulate Filter (KDPF) exchange. Evaluate the torque converter and transmission clutches during heavy-duty overhaul cycles to maintain the machine's high breakout force and operational efficiency.
Seasonal & Environment Servicing
In dusty environments, increase frequency of air filter inspections and radiator fin cleaning to prevent overheating. During cold operations, ensure engine oil viscosity is appropriate for ambient temperatures; while SAE 10W-30 is standard, single-grade oils may be required for extreme cold. Always check the battery load test and terminal corrosion before seasonal transitions to ensure reliable starting in low temperatures.
WA320-3-BO(S/N 50001-UP (FOR BOSNIAN/CHASSIS ONLY)) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 600-181-6740 | Element Assembly, Innner And Outer Air Cleaner | Air intake service | Check fitment → |
| 09637-30163 | Plate? Instruction,Air Cleaner (Single Element) | Air intake service | Check fitment → |
| 714-07-28700 | Filter Ass'Y,Transmission Oil | Lubrication service | Check fitment → |
| 714-07-28711 | Element, Transmission Oil Filter | Lubrication service | Check fitment → |
| 714-12-18751 | Support, Oil Filter Mounting | Lubrication service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
WA320-3-BO(S/N 50001-UP (FOR BOSNIAN/CHASSIS ONLY)) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| E10 | Engine controller power malfunction | Faulty ECM power connections, blown fuses, or improper ground wiring | Inspect ECM power connections, fuses, and ground wires |
| E11 | Engine protection—output power reduced | High coolant temperature, low oil pressure, or restricted 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 | Intake air temperature sensor feedback voltage is too high | Sensor error or electrical short in the intake air temperature circuit | Test or replace the IAT sensor |
| CA451 | Common rail pressure error | Malfunction in the fuel rail pressure sensor or issues within pump lines | Diagnose the fuel rail pressure sensor and inspect pump lines |
| CA441 / CA442 | Battery voltage too low / too high | Alternator failure or battery degradation; faulty voltage regulator | Replace the alternator or battery and check the voltage regulator |
| DGH2KB | Hydraulic oil temperature sensor short circuit | Short circuit in the hydraulic oil temperature sensor | Replace the temperature sensor |
| DW43KB | Travel speed solenoid valve open/short circuit | Electrical short or open circuit in the travel speed control solenoid | Replace the solenoid valve |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
WA320-3-BO(S/N 50001-UP (FOR BOSNIAN/CHASSIS ONLY)) attachments & work tools
Buckets and Material Handling
Standard configurations include GP buckets with bolt-on cutting edges and various bucket options for different materials. Heaped capacities are documented at 3.5 yd³ (2.68 m³) for certain Active+ configurations.
Mounting and Connection Systems
The machine supports quick coupler (QC) options and JRB hydraulic quick couplers. High lift boom options are available to extend reach and application versatility.
Hydraulic Configuration
Optional third spool hydraulics are available for auxiliary tool operation. The system may utilize a three-spool valve with integrated proportional control switches via the multi-function mono-lever.
Protection and Guarding
Customizable waste guarding packages are available to protect the machine. Specific options include bucket cylinder rod guards to prevent damage from falling debris.
All WA320-3-BO(S/N 50001-UP (FOR BOSNIAN/CHASSIS ONLY)) assemblies by section
Every catalogued assembly group for the Komatsu WA320-3-BO(S/N 50001-UP (FOR BOSNIAN/CHASSIS ONLY)). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Cooling System
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Cooling System : Fan Guard
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 8 |
| 41***20 | Guard,Fan? L.H | 1 |
| 41***30 | Guard,Fan? R.H | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Cooling System : Oil Cooler Piping
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 6 |
| 01***16 | Bolt - Starting Motor Ground Cable | 5 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 3 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Cooling System : Radiator (Inner Parts And Mounting)
| 01***25 | Bolt,(Rear Attachment Less) | 4 |
| 01***40 | Bolt,For Weight Adjusting Bolt | 2 |
| 01***55 | Bolt - Mount Cage To Transmission Case | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Cooling System : Radiator (Piping)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 3 |
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 3 |
Electrical System
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Electrical System : Battery
| 08***00 | Terminal? (+),(10l) (Not Shown) | 1 |
| 08***01 | Terminal? (-),(20l) (Not Shown) | 1 |
| 08***15 | Battery? Wet,(Sandy And Dusty Spec.) | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Electrical System : Battery (Battery Line)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
| 08***70 | Wire,(For Large Capacity) | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Electrical System : Battery (Large Capacity Type)
| 08***00 | Terminal? (+),(10l) (Not Shown) | 2 |
| 08***01 | Terminal? (-),(20l) (Not Shown) | 2 |
| 41***10 | Battery? 12v 150ah,(Cold Terrain Spec.) | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Electrical System : Battery Box (Box)
| 01***40 | Bolt,(For Slag Handling) (For Usa) | 2 |
| 01***65 | Capscrew - M16 X 2.00 X 90 | 4 |
| 01***08 | Screw, Terminal | 6 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Electrical System : Battery Box (Rear Combination Lamp)
| 01***35 | Screw, Mount Lens | 4 |
| 01***16 | Bolt - Starting Motor Ground Cable | 8 |
| 08***71 | Connector | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Electrical System : Beacon Lamp
| 01***16 | Bolt - Seat And Tether Belt Mounting | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
| 08***03 | Groove | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Electrical System : Electrical System (Horn)
| 01***16 | Bolt, Mount Solenoid Valve | 4 |
| 08***20 | Horn (Low) | 1 |
| 08***30 | Horn (High) | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Electrical System : Electrical System (Starting Switch And Flasher)
| 01***08 | Screw - Holder | 6 |
| 01***12 | Bolt,(See Fig. K0210-16a0) | 1 |
| 01***13 | Washer,Spring(For Wiper Switch Earth) | 6 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Electrical System : Electrical System (Starting Switch And Flasher) (For Sandy Dusty Area Arrangement)
| 01***08 | Screw - Holder | 6 |
| 01***12 | Bolt,(See Fig. K0210-16a0) | 1 |
| 01***13 | Washer,Spring(For Wiper Switch Earth) | 6 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Electrical System : Front Attachment Harness
| 01***16 | Bolt - Box Mounting | 1 |
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***05 | Nut,(For Air Conditioner Less), Nut | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Electrical System : Front Harness
| 01***16 | Bolt - Starting Motor Ground Cable | 10 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 1 |
| 08***36 | Tie, Cable | 9 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Electrical System : Front Lamp
| 01***25 | Screw - Antenna Mounting | 4 |
| 01***20 | Bolt - Mount Risers To Cab Floor | 4 |
| 08***00 | Connector (Modify Air Dryer Lead) | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Electrical System : Rear Harness (Battery Line)
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***08 | Screw, Terminal | 2 |
| 01***16 | Bolt, Mount Solenoid Valve | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Electrical System : Rear Harness (Rear Frame Harness)
| 01***16 | Bolt - Starting Motor Ground Cable | 23 |
| 04***10 | Clip,See Fig. K4010-05a0 | 6 |
| 04***12 | Clip, Hose | 5 |
Engine Related Parts
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Engine Related Parts : Engine (Air Cleaner And Engine Related Parts) (With Dust Separate Fuel Filter)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Engine Related Parts : Engine (Air Cleaner And Engine Related Parts) (With Precleaner)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Engine Related Parts : Engine (Engine Harness And Control Bracket)(#50001-54100)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 1 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 1 |
| 01***16 | Bolt | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Engine Related Parts : Engine (Engine Harness And Control Bracket)(#54101-)
| 01***12 | Bolt,(With Speedometer) | 4 |
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Engine Related Parts : Engine (Muffler And Engine Related Parts)
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Engine Related Parts : Engine Mounting Parts
| 01***80 | Bolt,(B) | 2 |
| 01***10 | Screw | 1 |
| 01***13 | Nut,Plate (Welded) | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Engine Related Parts : Exhaust Pipe
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 17***70 | Washer (Isolator Mounting) | 4 |
| 41***11 | Pipe, Exhaust | 1 |
Fuel Tank And Related Parts
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Fuel Tank And Related Parts : Fuel Line (Water Separator And Piping) (With Water Separator)
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 2 |
| 04***10 | Clip,(Without Cab) | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Fuel Tank And Related Parts : Fuel Line(Fuel Filter And Piping)(With Dust Separate Fuel Filter)
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 2 |
| 04***10 | Clip | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Fuel Tank And Related Parts : Fuel Tank
| 01***55 | Bolt, Fuel Tank Mounting | 3 |
| 01***16 | Bolt, Mount Solenoid Valve | 2 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 6 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Fuel Tank And Related Parts : Fuel Tank (Fuel Piping)
| 01***16 | Bolt - Starting Motor Ground Cable | 6 |
| 01***20 | Bolt - Mount Risers To Cab Floor | 1 |
| 04***10 | Clip - Fuel Sensor Harness | 2 |
Guard
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Guard : Bulkhead (Eigine Hood Rubber)
| 01***12 | Screw,(For Side Lamp) (Not Shown) | 5 |
| 01***16 | Bolt - Starting Motor Ground Cable | 7 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 8 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Guard : Bulkhead (Harness And Reserve Tank)
| 01***16 | Bolt - Starting Motor Ground Cable | 4 |
| 08***00 | Diode,(With Air Conditioner) | 1 |
| 20***40 | Holding Clamp | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Guard : Counter Weight
| 01***75 | Bolt | 4 |
| 04***00 | Adapter Sleeves | 2 |
| 22***80 | Washer, Mount | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Guard : Cover (For Floor Frame)
| 01***16 | Bolt - Starting Motor Ground Cable | 8 |
| 41***20 | Cover,L.H | 1 |
| 41***21 | Cover,L.H | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Guard : Hood (Door Seal)
| 41***90 | Seal,Door? R.H | 1 |
| 42***60 | Seal,Door? L.H | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Guard : Hood (Engine Hood And Mounting Parts)
| 01***40 | Capscrew | 8 |
| 01***16 | Bolt - Starting Motor Ground Cable | 8 |
| 01***20 | Bolt - Mount Risers To Cab Floor | 8 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Guard : Hood (Rear Guard Harness And Rear Work Lamp)
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 08***14 | Grommet,(For Eu Dynamic Noise) | 1 |
| 08***12 | Clip, Clip,(With Auto Emergency Steering) | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Guard : Hood Door
| 01***20 | Bolt - Mount Risers To Cab Floor | 4 |
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 16 |
| 01***08 | Washer,(For 1 Attachment And Pat) | 8 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Guard : Ladder
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***70 | Bolt, Accumulator Mounting Bracket | 4 |
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Guard : Ladder Rail
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 4 |
| 01***30 | Bolt, Mounting - Front Hand Rails | 8 |
| 01***10 | Nut,(Without Air Conditioner) | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Guard : Radiator Guard
| 01***20 | Bolt - Mount Risers To Cab Floor | 4 |
| 41***41 | Grill | 1 |
Hydraulic System
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Hydraulic System : Hydraulic Main Valve
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 5 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 1 |
| 01***30 | Bolt, Mounting - Front Hand Rails | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Hydraulic System : Hydraulic Main Valve (Front Attachment)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 5 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 1 |
| 01***30 | Bolt, Mounting - Front Hand Rails | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Hydraulic System : Hydraulic Piping (Delivery And Drain Line)
| 01***30 | Bolt,(For Mechanical Governor) | 4 |
| 01***40 | Bolt,(With Air Conditioner) | 8 |
| 01***23 | Washer,(For Shipping) | 12 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Hydraulic System : Hydraulic Piping (Delivery And Drain Line) (Front Attachment)
| 01***30 | Bolt - M8 X 30lg | 4 |
| 01***40 | Screw, Hex Socket | 8 |
| 01***23 | Washer,(For Shipping) | 12 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Hydraulic System : Hydraulic Piping (Delivery Line)
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 5 |
| 01***35 | Bolt,R.H. (For Add. Air Compressor) | 2 |
| 01***32 | Washer, (Without Emergency Steering) | 12 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Hydraulic System : Hydraulic Piping (Delivery Line) (Front Attachment)
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 5 |
| 01***35 | Bolt,R.H. (For Add. Air Compressor) | 2 |
| 01***32 | Washer, (Without Emergency Steering) | 12 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Hydraulic System : Hydraulic Piping (Dump Cylinder Line)
| 01***05 | Capscrew | 2 |
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 2 |
| 01***10 | Nut, Plate Mounting | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Hydraulic System : Hydraulic Piping (Dump Cylinder Line) (Front Attachment)
| 01***05 | Capscrew | 2 |
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 2 |
| 01***10 | Nut, Plate Mounting | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Hydraulic System : Hydraulic Piping (Front Attachment Line) (With 3-Spool Valve)
| 01***45 | Bolt, Bracket Mounting | 4 |
| 01***50 | Bolt,(See Fig.A4010-C3w6) | 2 |
| 01***08 | Nut,See Fig. K4010-04a0 | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Hydraulic System : Hydraulic Piping (Lift Cylinder Line)
| 01***30 | Bolt,(Water Separator Spec.) | 8 |
| 01***09 | Nut,(For Japan) | 8 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Hydraulic System : Hydraulic Piping (Lift Cylinder Line) (Front Attachment)
| 01***30 | Bolt,(Water Separator Spec.) | 8 |
| 01***09 | Nut,(For Japan) | 8 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Hydraulic System : Hydraulic Pump
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 2 |
| 01***35 | Bolt,R.H. (For Add. Air Compressor) | 8 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Hydraulic System : Hydraulic Tank
| 01***30 | Bolt, Tank Mounting | 1 |
| 01***35 | Bolt,(Not Used With Rops Canopy) | 2 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 8 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Hydraulic System : Hydraulic Tank (Hydraulic Piping)
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 2 |
| 01***35 | Bolt, Mount Bracket To Floor | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Hydraulic System : Priority Valve
| 23***30 | Plug | 2 |
| 41***80 | O-Ring | 2 |
| 41***50 | O-Ring | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Hydraulic System : Steering Hydraulic Piping
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 4 |
| 01***45 | Bolt, Bracket Mounting | 3 |
| 01***09 | Nut,(For Japan) | 16 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Hydraulic System : Steering Valve (Piping And Priority Valve Mounting Parts)
| 01***90 | Bolt,With Cover | 2 |
| 01***95 | Capscrew | 4 |
| 01***10 | Bolt,(With Joy Stick Steering) | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Hydraulic System : Steering Valve (Piping)
| 01***16 | Bolt - Starting Motor Ground Cable | 2 |
| 01***09 | Nut,(For Japan) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Hydraulic System : Steering Valve(#50001-54114)
| 02***38 | Bolt,Radio Controlled Slag Handling | 2 |
| 41***30 | Cap, End | 1 |
| 41***60 | Plate, Spacer | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Hydraulic System : Steering Valve(#54115-)
| 02***38 | Bolt,Radio Controlled Slag Handling | 2 |
| 41***10 | Spring,Flat | 2 |
| 41***30 | Cap, End | 1 |
Main/Revolving Frame And Related Parts
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Main/Revolving Frame And Related Parts : Front Frame
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Main/Revolving Frame And Related Parts : Front Frame (Front Attachment)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 09***00 | Plate? Name,(Limited Supply) | 1 |
| 41***80 | Frame,Front | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Main/Revolving Frame And Related Parts : Hinge Pin (For Front And Rear Frame Connecting)
| 01***95 | Screw | 3 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 10 |
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 6 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Main/Revolving Frame And Related Parts : Lock And Cover (Front And Rear Frame Cover)
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 11 |
| 41***20 | Cover, Front | 1 |
| 41***40 | Cover,L.H | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Main/Revolving Frame And Related Parts : Lock And Cover (Front And Rear Frame Cover) (Front Attachment)
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 11 |
| 41***40 | Cover,L.H | 1 |
| 41***50 | Cover, R.H | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Main/Revolving Frame And Related Parts : Lock And Cover (Lock Bar)
| 04***65 | Pin,Spring (For Chinese) | 4 |
| 42***21 | Pin | 1 |
| 42***31 | Pin | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Main/Revolving Frame And Related Parts : Rear Axle Support
| 01***90 | Bolt | 4 |
| 01***50 | Screw | 4 |
| 01***35 | Bolt,R.H. (For Add. Air Compressor) | 12 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Main/Revolving Frame And Related Parts : Rear Frame
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 4 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Main/Revolving Frame And Related Parts : Rear Frame (With Water Separator)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 4 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Main/Revolving Frame And Related Parts : Remote Grease (Rear Axle Support)
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 04***10 | Clip - Fuel Sensor Harness | 1 |
| 07***75 | Fitting,Grease (Without Lub. Piping) | 3 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Main/Revolving Frame And Related Parts : Steering Cylinder (Hydraulic Piping And Mounting Parts)(#50001-54100)
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 07***34 | O-Ring,(For Without Brake Assistor) | 2 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Main/Revolving Frame And Related Parts : Steering Cylinder (Hydraulic Piping And Mounting Parts)(#54101-)
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 2 |
| 07***06 | Hose Assembly | 2 |
Marks And Plates
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Marks And Plates : Marks And Plates (English)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 09***10 | Plate? Name,(Limited Supply) | 1 |
| 09***63 | Plate? Instruction,Air Cleaner (Single Element) | 1 |
Operator'S Compartment And Control System
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Accelerator Pedal
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 2 |
| 01***70 | Screw | 1 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Accelerator Pedal And Linkage
| 01***25 | Capscrew | 2 |
| 01***45 | Bolt | 1 |
| 01***20 | Bolt,See Fig. K4010-11a0 | 3 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Air Conditioner (Air Conditioner Kit And Mounting)
| 01***12 | Screw | 4 |
| 01***16 | Bolt, Mounting Transmission Control Switch | 4 |
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Air Conditioner (Air Conditioner Unit?1/2)
| 42***10 | Air Conditioner U | 1 |
| ND***11 | Valve | 1 |
| ND***42 | Case Ass'Y | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Air Conditioner (Air Conditioner Unit?2/2)
| ND***68 | Bolt | 3 |
| ND***40 | Packing | 1 |
| ND***90 | Screw,See Fig. K4010-16a0 | 7 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Air Conditioner (Compressor)
| 42***80 | Air Compressor Assembly, A-Type | 1 |
| ND***70 | Clamp, Tapping | 1 |
| ND***00 | Washer? 0.3mm,Plate? Sk | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Air Conditioner (Condenser)
| 20***22 | Condenser Assembly | 1 |
| ND***61 | Bolt | 6 |
| ND***62 | Bracket | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Air Conditioner And Duct
| 01***16 | Bolt - Starting Motor Ground Cable | 18 |
| 01***35 | Bolt, Mount Bracket To Floor | 2 |
| 07***09 | Clamp, Hose - At Water Pump | 6 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Air Conditioner And Duct (Defroster)
| 01***12 | Screw,R.H | 4 |
| 01***10 | Bolt - Relay And Flasher Mounting | 5 |
| 01***20 | Bolt,See Fig. K4010-11a0 | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Air Conditioner Mounting And Piping (Air Compressor Piping)
| 01***25 | Screw | 2 |
| 01***30 | Bolt,See Fig. K4010-17a0 | 2 |
| 01***16 | Bolt - Starting Motor Ground Cable | 8 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Air Conditioner Mounting And Piping (Compressor Mounting Part)
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 4 |
| 01***35 | Bolt,R.H. (For Add. Air Compressor) | 3 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Air Conditioner Mounting And Piping (Condenser Mountig)
| 01***16 | Bolt, Mount Solenoid Valve | 6 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 8 |
| 01***09 | Nut,(For Japan) | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Air Conditioner Or Heater (Air Duct)
| 42***30 | Duct Air Ass'Y,Air | 1 |
| ND***10 | Lever | 2 |
| ND***10 | Shaft | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Air Conditioner Or Heater (Damper)
| 42***20 | Damper Ass'Y | 1 |
| ND***41 | Shaft | 1 |
| ND***51 | Screw | 3 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Backet Positioner
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 2 |
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Backet Positioner (With P.A.P.)
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 2 |
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Brake Control (Accumulator Charge Valve To Accumulator Piping)
| 01***50 | Bolt,(Spark Arrester Spec.) | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
| 04***10 | Ring, Retaining | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Brake Control (Accumulator Charge Valve)
| 07***11 | O-Ring,(Tm8202-009) | 1 |
| 07***14 | O-Ring,(Without Maintenance Monitor) | 1 |
| 07***18 | O-Ring (Kit) | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Brake Control (Accumulator Drain Line)
| 01***16 | Bolt - Starting Motor Ground Cable | 2 |
| 04***10 | Clip,See Fig. K4010-05a0 | 1 |
| 04***10 | Clip,(See Fig.0311a Or 0321) | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Brake Control (Accumulator To Brake Valve)
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 1 |
| 04***10 | Clip,(Without Cab) | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Brake Control (Accumulator)
| 01***20 | Bolt - Mount Risers To Cab Floor | 2 |
| 01***45 | Bolt,(Noise Abatement Part) | 4 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 16 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Brake Control (Brake Accumulator)
| 07***00 | O-Ring,(F4350-65a1 -5 ) | 1 |
| 07***90 | O-Ring,Grease Pump Strap | 1 |
| 07***90 | Ring,Back-Up (Kit) | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Brake Control (Brake Valve Drain Line)
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 1 |
| 01***09 | Nut,(For Japan) | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Brake Control (Front Brake Line)
| 01***16 | Bolt - Starting Motor Ground Cable | 6 |
| 01***35 | Bolt, Mount Bracket To Floor | 1 |
| 01***07 | Nut,(With Body Positioner) | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Brake Control (P.P.C. Pump To Accumulator Charge Valve)
| 01***40 | Screw, Hex Socket | 4 |
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Brake Control (Rear Brake Line)
| 01***16 | Bolt - Starting Motor Ground Cable | 4 |
| 01***35 | Bolt, Mount Bracket To Floor | 1 |
| 04***10 | Clip,(See Fig.0311a Or 0321) | 5 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Brake Control (Tandam Brake Valve)
| 01***20 | Screw | 1 |
| 01***25 | Bolt,See Fig. K4010-65a0 | 4 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 3 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Brake Oil Piping (Axle Line)
| 07***34 | O-Ring,(For Without Brake Assistor) | 4 |
| 41***20 | Tube, L.H | 2 |
| 41***30 | Tube, R.H | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Car Radio (With Cab)
| 01***14 | Screw | 4 |
| 08***19 | Band - Tie Hose To Wire Harness | 3 |
| 22***10 | Car Radio,(Within Speaker) | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Cooler And Heater Box (With Cab)
| 42***70 | Grille,(See Fig. K0210-16a0) | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Cover (For Floor Frame)
| 01***16 | Screw | 1 |
| 01***20 | Bolt,See Fig. K4010-11a0 | 6 |
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Cover (For Floor Frame) (With Air Conditioner)
| 01***12 | Screw | 6 |
| 01***16 | Screw | 1 |
| 01***20 | Bolt,See Fig. K4010-11a0 | 6 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Floor (Floor Frame)
| 42***61 | Frame,Floor | 1 |
| 42***62 | Frame,Floor | 1 |
| 42***63 | Frame,Floor | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Floor (Floor Frame) (With Air Conditioner)
| 41***12 | Frame,Floor | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Floor (R.H. Console Box)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 3 |
| 01***12 | Screw, Ashtray Mounting | 2 |
| 01***10 | Bolt - Relay And Flasher Mounting | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Floor (Throttle Cable)
| 04***10 | Pin, Cotter | 1 |
| 04***14 | Pin (Op) | 1 |
| 04***00 | Yoke | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Floor (Throttle Cable) (With Air Conditioner)
| 04***10 | Pin, Cotter | 1 |
| 04***14 | Pin (Op) | 1 |
| 04***00 | Yoke | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Floor Harness
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***10 | Bolt - Relay And Flasher Mounting | 6 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Floor Harness (R.H. Console Box)
| 01***16 | Screw, Mount Parking Lights | 4 |
| 01***10 | Bolt - Relay And Flasher Mounting | 13 |
| 01***16 | Bolt, Mounting Transmission Control Switch | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Floor Harness (R.H. Console Box) (With Air Conditioner)
| 01***16 | Screw, Mount Parking Lights | 4 |
| 01***10 | Bolt - Relay And Flasher Mounting | 13 |
| 01***16 | Bolt, Mounting Transmission Control Switch | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Floor Harness (With Air Conditioner)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 5 |
| 01***10 | Bolt - Relay And Flasher Mounting | 6 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Floor Mat
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Floor Mat (With Air Conditioner)
| 41***70 | Mat, Floor | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Floor Support
| 01***55 | Bolt,(Not Used For Chip Dozer) | 8 |
| 01***20 | Bolt | 4 |
| 01***15 | Nut, Lock | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Gauge And Sensor
| 01***08 | Screw | 2 |
| 01***16 | Screw,(For Joy Stick Steering) | 5 |
| 01***12 | Screw,(Not Shown) (For Std Cab) | 7 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Heater Piping
| 01***10 | Bolt - Relay And Flasher Mounting | 2 |
| 01***16 | Bolt - Starting Motor Ground Cable | 2 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Loader Control (Attachment Control Lever) (With 3-Spool Valve) (1/2)
| 01***25 | Bolt - Relay Mounting | 1 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 2 |
| 01***06 | Nut | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Loader Control (Attachment Control Lever) (With 3-Spool Valve) (2/2)
| 01***16 | Bolt, Mounting Transmission Control Switch | 4 |
| 01***12 | Bolt,(With Speedometer) | 2 |
| 01***25 | Bolt - Relay Mounting | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Loader Control (Work Equipment Control Lever)
| 01***16 | Bolt, Mounting Transmission Control Switch | 2 |
| 01***12 | Bolt,(With Speedometer) | 2 |
| 01***25 | Bolt - Relay Mounting | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Loader Control (Work Equipment Control Lever) (With 3-Spool Valve)
| 06***16 | Bearing,Seal (K6) | 4 |
| 06***04 | Seal,Bearing (Itl) | 4 |
| 07***75 | Fitting,Grease (Without Lub. Piping) | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Loader Control (Work Equipment Control Linkage)
| 01***16 | Bolt - Starting Motor Ground Cable | 3 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 1 |
| 01***20 | Bolt - Mount Risers To Cab Floor | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Loader Control (Work Equipment Control Linkage) (With 3-Spool Valve)
| 01***16 | Bolt - Starting Motor Ground Cable | 2 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 1 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Loader Control (Work Equipment Lock Lever)
| 01***12 | Bolt,(With Speedometer) | 2 |
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 2 |
| 04***08 | Pin, Spring | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Loader Control (Work Equipment Lock Lever) (With 3-Spool Valve)
| 01***12 | Bolt,(With Speedometer) | 2 |
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 2 |
| 04***08 | Pin, Spring | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Marks And Plates (Cab Inside) (English) (With Multi Purpose Bucket)(#50411-)
| 09***81 | Plate? Safety,Warning Before Ope.And Mainte | 1 |
| 09***81 | Plate? Safety,Work Equipment Lever Lock | 1 |
| 09***81 | Plate? Safety,Hazard0us Voltage Warning | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Marks And Plates (Cab Inside) (English) (With P.A.P)(#50411-)
| 09***81 | Plate? Safety,Warning Before Ope.And Mainte | 1 |
| 09***81 | Plate? Safety,Work Equipment Lever Lock | 1 |
| 09***81 | Plate? Safety,Hazard0us Voltage Warning | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Marks And Plates (Cab Inside) (English)(#50411-)
| 09***81 | Plate? Safety,Warning Before Ope.And Mainte | 1 |
| 09***81 | Plate? Safety,Work Equipment Lever Lock | 1 |
| 09***81 | Plate? Safety,Hazard0us Voltage Warning | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Operator'S Cab (Door Seal)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 12 |
| 01***20 | Screw | 4 |
| 01***16 | Bolt, Mount Solenoid Valve | 8 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Operator'S Cab (Door? 1/3)
| 01***12 | Screw | 16 |
| 01***12 | Screw | 10 |
| 01***03 | Nut, Switch Knob | 16 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Operator'S Cab (Door? 2/3)
| 01***16 | Screw,(P.O.C. Model) (Except Japan) | 2 |
| 01***16 | Screw | 1 |
| 01***12 | Bolt,(See Fig. K0210-16a0) | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Operator'S Cab (Door? 3/3)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 4 |
| 01***10 | Screw,(For Shipping) | 6 |
| 01***12 | Screw | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Operator'S Cab (Electrical Parts)
| 01***16 | Screw,(Sandy And Dusty Terrain S.) | 5 |
| 01***12 | Screw,(Additional Sun Visor) | 10 |
| 01***10 | Washer,Spring (For Engine Room Lamp) | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Operator'S Cab (Interior Trim)
| 01***16 | Screw,(Sandy And Dusty Terrain S.) | 6 |
| 01***16 | Screw,(With Ashtray) | 2 |
| 01***16 | Screw | 10 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Operator'S Cab (Mounting Parts And Door Decal)
| 01***50 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***30 | Bolt, Mounting - Front Hand Rails | 8 |
| 01***75 | Bolt - Cab To Rops | 3 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Operator'S Cab (Window And Front Wiper)
| 01***12 | Bolt,(See Fig. K0210-16a0) | 4 |
| 01***12 | Bolt,(With Speedometer) | 4 |
| 01***20 | Bolt,(Forwarded Individually Parts) | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Operator'S Seat(#50292-)
| 01***20 | Bolt - Mount Risers To Cab Floor | 4 |
| 01***06 | Nut | 4 |
| 41***00 | Seat Ass'Y | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Seat Belt (Rigid Type Seat)
| 09***01 | Bolt,(For Shipping) | 2 |
| 09***02 | Washer,(For Shipping) | 2 |
| 09***03 | Nut,(For Shipping) | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Steering Wheel And Column
| 01***50 | Bolt,(Europe Spec.) | 3 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
| 01***08 | Nut, Accumulator Mounting | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Steering Wheel And Column (Support)
| 01***10 | Bolt - Relay And Flasher Mounting | 2 |
| 01***16 | Bolt, Mount Solenoid Valve | 4 |
| 01***30 | Bolt, Mounting - Front Hand Rails | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Transmission Contorl Switch
| 01***08 | Screw, Mount Damper To Shaft | 6 |
| 01***12 | Screw | 2 |
| 01***08 | Screw, Terminal | 10 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Operator'S Compartment And Control System : Window Washer Tank
| 01***10 | Screw,(With Air Conditioner) | 2 |
| 01***16 | Screw,(P.O.C. Model) (Except Japan) | 2 |
| 01***23 | Washer,(With Auto Emergency Steering) | 2 |
Service Kit And Component Parts
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Service Kit And Component Parts : 3-Spool Control Valve (1/2)
| 01***20 | Screw | 12 |
| 01***25 | Bolt,(Rear Attachment Less) | 3 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Service Kit And Component Parts : 3-Spool Control Valve (2/2)
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
| 07***16 | O-Ring | 1 |
| 07***16 | Ring, Back-Up | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Service Kit And Component Parts : Angle Cylinder
| 04***25 | Ring, Snap | 1 |
| 07***05 | O-Ring, Steering Pump Mounting | 1 |
| 07***05 | Bushing,Cylinder | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Service Kit And Component Parts : Check Valve
| 07***35 | O-Ring, At Lower Oil Cooler Inlet Port | 1 |
| 70***11 | Body | 1 |
| 70***21 | Poppet | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Service Kit And Component Parts : Clam Cylinder (For Multi Purpose Bucket)
| 04***25 | Ring,Snap | 1 |
| 07***25 | O-Ring,Cylinder Head | 1 |
| 07***06 | Bushing | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Service Kit And Component Parts : Control Valve (2-Spool) (1/2)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 8 |
| 01***25 | Bolt,(Rear Attachment Less) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Service Kit And Component Parts : Control Valve (2-Spool) (2/2)
| 07***34 | O-Ring,Transmission And Steering Case | 3 |
| 70***00 | Valve Ass'Y,Suction And Safety (230kg/Cm2) | 2 |
| 70***00 | Valve Assembly, Suction | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Service Kit And Component Parts : Dump Cylinder
| 01***40 | Bolt,(Dust And Dirt Protection) | 6 |
| 01***60 | Capscrew | 12 |
| 01***45 | Washer, Spring | 12 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Service Kit And Component Parts : Hydraulic Pump (1/3)
| 01***32 | Washer, (Without Emergency Steering) | 4 |
| 04***24 | Pin,Dowel (For No.3 Housing) | 4 |
| 04***18 | Ring, Retaining | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Service Kit And Component Parts : Hydraulic Pump (2/3)
| 01***32 | Washer, (Without Emergency Steering) | 4 |
| 01***32 | Washer, (Without Emergency Steering) | 4 |
| 04***24 | Pin,Dowel (For No.3 Housing) | 6 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Service Kit And Component Parts : Hydraulic Pump (3/3)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***32 | Washer, (Without Emergency Steering) | 8 |
| 01***32 | Washer, (Without Emergency Steering) | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Service Kit And Component Parts : Hydraulic Pump (Transmission) (1/2)
| 01***32 | Washer, (Without Emergency Steering) | 4 |
| 04***24 | Pin,Dowel (For No.3 Housing) | 4 |
| 04***18 | Ring, Retaining | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Service Kit And Component Parts : Hydraulic Pump (Transmission) (2/2)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***32 | Washer, (Without Emergency Steering) | 8 |
| 01***32 | Washer, (Without Emergency Steering) | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Service Kit And Component Parts : Kit (Transmission)
| 07***09 | O-Ring,(F4350-61a0 -33 ) | 1 |
| 07***10 | O-Ring,(F4350-62a0 -5 ), O-Ring; Komatsu S/N 22***01 & Abv - Was 07000-02010, O-Ring; Was 07000-02010 | 1 |
| 07***14 | O-Ring,(F4350-63a1a-2 ) | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Service Kit And Component Parts : Lift Cylinder
| 01***40 | Bolt,(Dust And Dirt Protection) | 6 |
| 01***55 | Bolt,(For Shipping) | 12 |
| 01***45 | Washer,(For Quick Shift) (Mitsubishi) | 12 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Service Kit And Component Parts : Steering Cylinder(#50001-54100)
| 07***65 | O-Ring,(F5350-62a0 -14 ) | 1 |
| 07***70 | O-Ring (Kit) | 1 |
| 07***08 | Plug,(For W/O. Corrosion Resistor) | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Service Kit And Component Parts : Steering Cylinder(#54101-)
| 07***65 | O-Ring,(F5350-62a0 -14 ) | 1 |
| 07***70 | O-Ring (Kit) | 1 |
| 07***34 | O-Ring,(For Without Brake Assistor) | 1 |
Suspension And Wheel Related Parts
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Suspension And Wheel Related Parts : Rim (For 20.5-R25 Tubeless Tire)
| 41***30 | Flange,Wheel | 1 |
| 41***40 | Ring, Lock | 1 |
| 41***01 | Wheel Assembly (20.5-R25) | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Suspension And Wheel Related Parts : Tire (20.5-25-12pr-L3? Tubeless Tire)
| 09***30 | Stem, Valve | 1 |
| 09***41 | Core, Valve | 1 |
| 09***20 | Cap, Tire Valve | 1 |
Transmission
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Drive Shaft (Center)
| 01***45 | Screw | 8 |
| 41***14 | Drive Shaft Ass'Y,Center (Wa320-1p) | 1 |
| 41***21 | Spider Assembly | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Drive Shaft (Front)
| 01***60 | Capscrew | 4 |
| 01***15 | Screw | 1 |
| 01***45 | Screw | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Drive Shaft (Rear)
| 01***45 | Screw | 8 |
| 41***12 | Drive Shaft Assembly, Rear | 1 |
| 41***50 | Yoke | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Front Axle (Axle Housing)
| 01***75 | Screw | 32 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 32 |
| 04***28 | Pin, Dowel - Transmission Case, Pin-Dowel | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Front Axle (Brake)
| 01***16 | Bolt | 4 |
| 15***70 | Washer,(With Body Positioner) | 4 |
| 41***40 | Internal Disc | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Front Axle (Differential)(#50001-54114)
| 01***40 | Bolt,(Dust And Dirt Protection) | 16 |
| 01***40 | Bolt,(Not Used With Cab) | 10 |
| 01***50 | Bolt, Radiator To Frame | 16 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Front Axle (Differential)(#54115-)
| 01***40 | Bolt,(Dust And Dirt Protection) | 16 |
| 01***40 | Bolt,(Not Used With Cab) | 10 |
| 01***40 | Capscrew - M12 X 1.75 X 40lg | 40 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Front Axle (Final Drive)
| 01***00 | Bolt,(For 27.00-49) | 2 |
| 41***10 | Taper.Roller Bearing | 12 |
| 41***50 | Taper.Roller Bearing | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Front Axle (Mounting Parts)
| 01***45 | Screw | 8 |
| 01***19 | Nut | 8 |
| 01***60 | Washer,(Without Rops Guard? Canopy) | 46 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Parking Brake Control
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 4 |
| 01***16 | Screw, Mount Leg | 2 |
| 01***02 | Nut (Instr. Panel W/O Cab) | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Rear Axle (Axle Housing)
| 01***75 | Screw | 32 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 32 |
| 04***28 | Pin, Dowel - Transmission Case, Pin-Dowel | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Rear Axle (Brake)
| 01***16 | Bolt | 4 |
| 15***70 | Washer,(With Body Positioner) | 4 |
| 41***40 | Internal Disc | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Rear Axle (Differential)(#50001-54114)
| 01***40 | Bolt,(Dust And Dirt Protection) | 16 |
| 01***40 | Bolt,(Not Used With Cab) | 10 |
| 01***50 | Bolt, Radiator To Frame | 16 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Rear Axle (Differential)(#54115-)
| 01***40 | Bolt,(Dust And Dirt Protection) | 16 |
| 01***40 | Bolt,(Not Used With Cab) | 10 |
| 01***40 | Capscrew - M12 X 1.75 X 40lg | 40 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Rear Axle (Final Drive)
| 01***00 | Bolt,(For 27.00-49) | 2 |
| 41***10 | Taper.Roller Bearing | 12 |
| 41***50 | Taper.Roller Bearing | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Rear Axle (Wheel Mounting Parts)
| 01***60 | Washer,(Without Rops Guard? Canopy) | 30 |
| 41***70 | Bolt, Mounting Rear Wheels | 30 |
| (4***1) | Axle Ass'Y,Rear | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Torque Converter
| 01***25 | Bolt,(Rear Attachment Less) | 24 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***55 | Bolt,(See Service News) | 8 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Transmission (1st And 3rd Clutch)
| 41***22 | Ring,(F4350-54a0 -21 ) | 3 |
| 41***33 | Spring, Wave | 10 |
| 41***40 | Ring, Snpa | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Transmission (2nd And 4th Clutch)
| 41***22 | Ring,(F4350-54a0 -21 ) | 3 |
| 41***33 | Spring, Wave | 10 |
| 41***40 | Ring, Snpa | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Transmission (Accessory)
| 01***40 | Bolt (Op) | 4 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 1 |
| 01***70 | Bolt - Accumulator Mounting Bracket | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Transmission (Forward And Reverse Clutch)
| 41***22 | Ring,(F4350-54a0 -21 ) | 4 |
| 41***33 | Spring, Wave | 18 |
| 41***40 | Ring, Snpa | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Transmission (Idler)
| 01***30 | Bolt,(Not Used When Towing Winch) | 2 |
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 2 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Transmission (Oil Filler Cap) (Vandalism Protection)
| 41***10 | Cap,Lock Type | 1 |
| 61***20 | Cap Assembly, Oil Fill Tube | 1 |
| 61***80 | Gasket, Oil Fill Cap | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Transmission (Output Shaft)
| 01***25 | Bolt - Rear Guard Mounting | 2 |
| 01***20 | Bolt, Mount Side Weights | 1 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Transmission (P.T.O.)
| 04***20 | Ring, Retaining | 2 |
| 04***18 | Ring, Snap | 2 |
| 04***25 | Ring,Snap (Kit) | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Transmission (Parking Brake)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 06***20 | Bearing,(For R.H. Steering) | 2 |
| 41***10 | Washer | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Transmission (Piping Bracket)
| 01***95 | Capscrew - M12 | 2 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 2 |
| 07***25 | Plug,(For Shipping And Storage Only | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Transmission (Piping Mounting Parts)
| 07***34 | O-Ring, O-Ring,Drain Plug? R.H. Half Tank | 1 |
| 07***34 | O-Ring,(For Front Attachment) | 1 |
| 07***34 | Elbow,(Wa250-1p? 1d) | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Transmission (Transmission And Harness)
| 01***16 | Bolt - Starting Motor Ground Cable | 2 |
| 01***08 | Nut,R.H. Thread | 12 |
| 01***32 | Washer,(With Auto Emergency Steering) | 12 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Transmission (Transmission Case) (1/2)
| 01***40 | Capscrew - M12 X 1.75 X 40lg | 14 |
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 2 |
| 01***65 | Bolt,(Used With Pin Puller) | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Transmission (Transmission Case) (2/2)
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 9 |
| 01***50 | Bolt,For Weight Adjusting Bolt | 2 |
| 01***60 | Bolt,For Weight Adjusting Bolt | 7 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Transmission (Transmission Pump And Piping) (1/2)
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 2 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 4 |
| 01***80 | Bolt,(With Corrosion Resistor) | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Transmission (Transmission Pump And Piping) (2/2)
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 1 |
| 01***45 | Screw | 4 |
| 01***55 | Screw | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Transmission Control Valve (1/4) (Mounting)
| 01***30 | Bolt,(For France Noise Suppression) | 3 |
| 01***20 | Capscrew | 4 |
| 01***30 | Capscrew (1) | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Transmission Control Valve (2/4) (Upper Valve)
| 01***40 | Bolt,(Dust And Dirt Protection) | 3 |
| 01***50 | Bolt | 2 |
| 01***30 | Bolt,(With Body Positioner) | 12 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Transmission Control Valve (3/4) (Lower Valve)
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
| 01***55 | Bolt,(For Suction? Reversible Fan) | 7 |
| 02***04 | Plug | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Transmission Control Valve (4/4) (Solenoid Valve)(#(84734)-)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 2 |
| 01***60 | Bolt,(With Body Positioner) | 1 |
| 01***75 | Capscrew | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Transmission Mounting
| 01***75 | Capscrew | 4 |
| 01***30 | Bolt, Mount Transmission To Frame | 2 |
| 01***80 | Bolt, Adjustment | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Transmission Mounting Bracket
| 01***50 | Bolt, Radiator To Frame | 8 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 1 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 8 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Transmission : Transmission Oil Filter(#50001-52000)
| 07***23 | O-Ring,(F4350-68a0 -13 ) | 1 |
| 07***09 | Plug, Oil Drain | 1 |
| 41***00 | Filter Assembly (See Pg F-058) | 1 |
Work Equipment
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Work Equipment : Blade (Angle Cylinder Line) (With P.A.P.)
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***09 | Nut,(For Japan) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Work Equipment : Blade (Carrier) (With P.A.P.)
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***25 | Bolt, Pinlock | 2 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 6 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Work Equipment : Blade (Mark Plate) (With P.A.P.)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Work Equipment : Blade (Side Guard) (With P.A.P.)
| 01***45 | Bolt,(For 60ton Dump Body) | 10 |
| 01***13 | Nut,Plate (Welded) | 4 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 14 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Work Equipment : Blade (Sled)
| 01***75 | Bolt (M10-1.50x75) | 1 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 1 |
| 01***70 | Bolt - Accumulator Mounting Bracket | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Work Equipment : Blade (Vehicle Inspection Parts) (With P.A.P.)
| 01***20 | Bolt,(For Mono Lever Steering) | 3 |
| 01***40 | Bolt (Op) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Work Equipment : Blade (With P.A.P.)
| 01***68 | Washer,(Not Shown) | 24 |
| 02***70 | Bolt | 24 |
| 02***22 | Nut, 7/8 In. Nc | 24 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Work Equipment : Boom Kick Out(#50220-)
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 01***20 | Bolt - Mount Risers To Cab Floor | 2 |
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Work Equipment : Bucket? 2.3m3
| 01***60 | Washer,Single Flange (Trimming) | 4 |
| 02***70 | Bolt | 4 |
| 02***22 | Nut, 7/8 In. Nc | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Work Equipment : Dump Cylinder (Piping And Mounting Parts)
| 01***25 | Bolt, Pinlock | 2 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
| 01***55 | Bolt, Mount Dryer To Bracket And Frame | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Work Equipment : Lift Arm And Bellcrank (Front Attachment Line) (With 3-Spool Valve)
| 01***35 | Bolt,(For Fix Position) | 16 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 4 |
| 01***65 | Bolt, Mount Tube To Divider Valve | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Work Equipment : Lift Arm Bellcrank
| 07***00 | Fitting, Grease - Upper Hinge Pin | 4 |
| 07***00 | Fitting, Grease (Steering Cylinder) | 1 |
| 41***10 | Seal,Dust (For High Lift) | 12 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Work Equipment : Lift Arm Bellcrank (Mounting Parts)
| 01***25 | Bolt, Pinlock | 7 |
| 01***06 | Nut, (Service Parts) | 8 |
| 01***08 | Washer,(For 1 Attachment And Pat) | 16 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Work Equipment : Lift Cylinder (Hydraulic Piping)
| 01***55 | Bolt, Mount Dryer To Bracket And Frame | 16 |
| 01***65 | Bolt - Transmission Tube Mounting | 2 |
| 01***09 | Nut, Lock | 8 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Work Equipment : Lift Cylinder (Mounting Parts)
| 01***25 | Bolt, Pinlock | 2 |
| 01***30 | Bolt - Pin Mounting | 2 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Work Equipment : Multipurpose Bucket
| 01***15 | Bolt, Fan Mounting | 2 |
| 01***40 | Bolt | 2 |
| 01***60 | Bolt | 2 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Work Equipment : Multipurpose Piping (1/2)
| 01***30 | Bolt | 8 |
| 01***40 | Screw, Hex Socket | 4 |
| 01***55 | Screw | 4 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Work Equipment : Multipurpose Piping (2/2)
| 07***32 | O-Ring (K31) | 2 |
| 07***60 | Bolt | 4 |
| 42***10 | Flange, Orifice | 1 |
Komatsu : Wa320-3-Bo(S/N 50001-Up (For Bosnian/Chassis Only)) : Work Equipment : Tooth
| 01***80 | Washer,(For R.H. Steering) | 2 |
| 02***95 | Bolt, Mount Center Adapters | 14 |
| 02***25 | Nut, 1 In. Nc | 2 |
WA320-3-BO(S/N 50001-UP (FOR BOSNIAN/CHASSIS ONLY)) serial number reference
The PIN plate is located on the front frame, on the right-hand side of the articulation joint. To read the prefix, identify the first three characters of the serial number sequence.
| Prefix | Identifies | Notes |
|---|---|---|
| 50001-UP | WA320-3-BO (For Bosnian/Chassis only) | Identified as a specific configuration for the Bosnian market, chassis-only designation. |
Frequently asked questions
What engine is installed in this model?
The WA320-3-BO features a 4-cycle, water-cooled, in-line, 6-cylinder turbocharged engine with a displacement of 8,270 cc (505 cu in). Depending on the specific serial range within the 50001-UP bracket, it may utilize the Cummins 6CT8.3 or the Komatsu S6D114E-1/419 engine.
What is the operating weight of the machine?
The operating weight varies by configuration and attachments, but related WA320 series models typically operate in the range of approximately 13,590 kg (29,960 lb) to 16,000 kg (35,000 lb).
What model replaced the WA320-3?
The WA320-3 was succeeded by later generations of the WA320 series, including the more advanced WA320-6 and the Tier 4 Final compliant WA320-8.
What WA320-3-BO(S/N 50001-UP (FOR BOSNIAN/CHASSIS ONLY)) owners discuss
What are common transmission behaviors and issues reported for the WA320-3 series?
What are the known hydraulic and pump-related symptoms in this machine type?
What electrical or sensor issues are frequently documented?
What are the typical brake system failure modes for the WA320?
What engine models and specifications are associated with this serial range?
What should be checked when purchasing a used WA320-3-BO (S/N 50001-UP)?
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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