Komatsu WA380-3H ACTIVE(S/N WA380H20501-UP)
Komatsuwheel loadermedium (wa140 - wa380)

Komatsu WA380-3H ACTIVE(S/N WA380H20501-UP)

Maintenance schedule, common problems & OEM parts breakdown

The Komatsu WA380-3H ACTIVE is a mid-size wheel loader designed for high-productivity earthmoving, quarrying, and stockpiling applications. This machine belongs to the WA380 series, featuring a Komatsu S6D108 engine (4-cycle, water-cooled, 6-cylinder, direct injection with turbocharger). The unit operates in a weight class typically around 17.7 tonnes (approx. 39,000 lbs) and is configured with a bucket capacity of approximately 3.0 to 3.2 m³ (3.9 to 4.2 yd³). It serves as a predecessor to later generations like the WA380-6 and WA380-8.

Across generations, Komatsu has transitioned from the mechanical focus of the -3 series toward the advanced electronic integration seen in the -8 series, which utilizes SmartLoader Logic and hydrostatic transmission options. The WA380-3H ACTIVE remains a critical asset in the used market due to its robust S6D108 powertrain and high resale value. For fleet managers, this machine represents a balance of proven mechanical reliability and the foundational telematics capabilities provided by KOMTRAX, making it a staple for mid-size construction and municipal fleets.

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 WA380-3H ACTIVE(S/N WA380H20501-UP) specifications

Engine

ModelS6D114 E-1 (Active+ variant); S6D108 (Standard WA380-3)
Gross Power192 hp (for Active+ variant); 187.8 hp (for Standard WA380-3)
Displacement506.5 cu in (Active+ variant); 436.4 cu in (Standard WA380-3)
Cylinders6
AspirationTurbocharged
Max Torque626.2 lb ft @ 1400 rpm (Active+ variant)

Weights

Operating Weight38,955.7 lb (Active+ variant); 35,902.3 lb (Standard WA380-3)
Static Tipping Weight31,140.3 lb (Active+ variant); 27,513.7 lb (Standard WA380-3)

Dimensions

Transport Length (with bucket on ground)25.74 ft (Active+ variant); 26.14 ft (Standard WA380-3)
Width Over Tires9.09 ft (Active+ variant); 8.85 ft (Standard WA380-3)
Height to Top of Cab11.09 ft (Active+ variant); 10.88 ft (Standard WA380-3)
Wheelbase10.5 ft
Ground Clearance1.45 ft (Active+ variant); 1.28 ft (Standard WA/380-3)
Hinge Pin Max Height13.38 ft (Active+ variant); 13.23 ft (Standard WA380-3)
Reach at Max Lift and Dump3.65 ft (Active+ variant); 3.84 ft (Standard WA380-3)

Performance

Bucket Capacity - Heaped4.06 yd³ (Active+ variant); 4.19 yd³ (Standard WA30-3)
Bucket Width9.57 ft (Active+ variant); 9.54 ft (Standard WA380-3)
Breakout Force34,845.39 lb (Active+ variant); 33,300 lb (Standard WA380-3)
Max Speed - Forward23 mph (Active+ variant); 19.6 mph (Standard WA380-3)
Max Speed - Reverse23.7 mph (Active+ variant); 20.2 mph (Standard WA380-3)
Turning Radius19.2 ft (Active+ variant); 21.1 ft (Standard WA380-3)
Dump Clearance at Max Raise9.88 ft (Active+ variant); 9.6 ft (Standard WA380-3)

Service capacities (summary)

Fuel Capacity75.9 gal
Hydraulic System Fluid Capacity50.2 gal (Active+ variant)
Engine Oil Fluid Capacity6 gal
Cooling System Fluid Capacity14.1 gal (Active+ variant)
Transmission Fluid Capacity12.7 gal (Active+ variant)
Front Axle/Diff Fluid Capacity9.8 gal (Active+ variant)
Rear Axle/Diff Fluid Capacity9.8 gal (Active+ variant)

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

WA380-3H ACTIVE(S/N WA380H20501-UP) fluids & capacities

SystemCapacityRecommended fluid
Engine crankcase (with filter)23 L (6.1 US gal)Komatsu Engine Oil; viscosity varies by climate (SAE 30, SAE 10W, SAE 10W-30, or SAE 15W-40)
Cooling system60.6 L (16 US gal)Water with antifreeze
Fuel tank300 L (79.3 US gal)Diesel fuel (ASTM D975 No. 2)
Transmission/powertrain compartments54 L (14.3 US gal)Komatsu Transmission Oil (SAE 10W)
Final drives (each)40 L (10.6 US gal)Not specified
Hydraulic system and tank142 L (37.5 US gal)Komatsu Hydraulic Oil (SAE 10W)
Axles/differentials40 L (10.6 US gal)AX075 (for conventional differential)

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

Komatsu WA380-3H ACTIVE(S/N WA380H20501-UP) maintenance schedule

Service intervalTasks
Every 10 h
  • Check engine oil level and condition
  • Inspect hydraulic fluid level via sight glass
  • Verify coolant level and cap security
  • Drain water from fuel/water separator
  • Monitor DEF level (Tier 4 machines)
  • Check air filter restriction indicator
  • Inspect tire condition and inflation
  • Check for hydraulic hose cracks or leaks
  • Clean debris from radiator and oil cooler fins
Every 250 h
  • Change engine oil and filter
  • Grease all points including bucket, Z-bar/linkage, steering, and axle
  • Replace fuel filter
  • Check air filter outer element
  • Inspect belts and hoses
  • Perform visual walk-around
Every 500 h
  • Complete all 250-hour service tasks
  • Replace hydraulic return filter
  • Perform battery service and load test
  • Test coolant SCA levels
  • Take KOWA oil sample for analysis
  • Inspect brake system pads
Every 1,000 h
  • Complete all 500-hour service tasks
  • Replace fuel water separator element
  • Inspect turbocharger
  • Perform detailed undercarriage/tire wear measurement
  • Check valve adjustment
  • Inspect structural welds and components
Every 2,000 h
  • Complete all 1000-hour service tasks
  • Change hydraulic oil
  • Perform coolant flush and replace
  • Service transmission and replace transmission filter
  • Change axle oil (front and rear)
  • Check differential oil level
  • Replace worn belts or hoses

Servicing the WA380-3H ACTIVE(S/N WA380H20501-UP) beyond the schedule

Predictive Maintenance & Fluid Analysis

Utilize Komatsu Oil Wear Analysis (KOWA) at every major interval to monitor engine oil, hydraulic fluid, and coolant. Analyze for wear metals like iron or copper, and contaminants such as silicon or sodium. Use KOMTRAX telematics to track fuel consumption, load frequency, and fault codes remotely. This data-driven approach allows for adjusting service intervals based on actual machine condition rather than fixed hours.

Corrective & Common Repairs

Monitor the fuel system for low transfer pump pressure; check the lift pump screen and inspect the injection pump check valve if hard starting occurs. For electrical issues, use diagnostic codes to identify faulty sensors or wiring corrosion. If the machine fails to move, inspect transmission and axle components. Regularly check hydraulic hoses for cracks or leaks to prevent sudden loss of function.

Overhaul & Rebuild Points

Plan major component evaluations at 2,000-hour intervals. Focus on the turbocharger inspection and valve adjustments. During heavy rebuilds, evaluate the transmission, torque converter, and hydraulic pump efficiency. Check structural integrity of the boom, bucket links, and pins for excessive play. For Tier 4 compliant successors, ensure the Diesel Particulate Filter (KDPF) is inspected for restriction at approximately 4,500 hours.

Seasonal & Environment Servicing

In dusty environments, prioritize frequent air filter element cleaning and radiator fin inspections to prevent overheating. During cold weather operations, ensure the engine pre-heating system is functional and check for fuel waxing. In high-moisture or muddy conditions, increase frequency of grease applications to all articulation points, pins, and bushings to prevent premature wear from abrasive contaminants.

WA380-3H ACTIVE(S/N WA380H20501-UP) common service parts

Part numberPart
07281-00197Clamp,(With Pre-Fuel Filter)Check fitment →
6732-21-5530Cartridge, Engine Oil FilterCheck fitment →
1267388H1FilterCheck fitment →
1295155H1Filter ElementCheck fitment →
207-04-K1270Pre FilterCheck fitment →

Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.

WA380-3H ACTIVE(S/N WA380H20501-UP) fault codes & troubleshooting

CodeMeaningLikely causeWhat to do
E03Parking brake system error or discrepancy in the safety lever systemConnectivity issues, misalignment of the lever, or parking brake system malfunctionInspect the safety lever connectivity and alignment; check the parking brake system
E10Engine controller power failure or engine management system malfunctionEngine controller power loss or circuit malfunction leading to engine stallInspect ECM power connections, fuses, or ground wires
E11Engine control failure resulting in reduced output powerSystem failure to protect the engine from damageCheck engine coolant temperature, oil pressure, and air filter status
CA115Engine crankshaft speed sensor or backup speed sensor failureBroken sensor, wiring harness issue, or connector corrosionReplace the speed sensor and verify voltage at the pin connector
CA234Engine overspeedImproper throttle calibration, excessive engine load cycle, or operator misuseVerify throttle calibration and review engine load conditions
CA441 / CA442Battery voltage too low (CA441) or too high (CA442)Alternator failure, battery degradation, or faulty voltage regulatorReplace the alternator or battery; inspect the voltage regulator
AA10NXAir cleaner cloggingAccumulated dust or debris in the air filter elementReplace the air filter
B@BCNSEngine coolant overheatingLow coolant level, radiator fin blockage, or fan belt failureCheck radiator fins, fan belt, and coolant level

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

WA380-3H ACTIVE(S/N WA380H20501-UP) attachments & work tools

Buckets and Ground Engaging Tools

Standard bucket capacities range from 3.0 m³ (3.9 yd³) to 4.5 m³ (5.9 yd³). Available components include cutting edges, teeth systems, lip systems, shrouds, and shovel bucket components.

Hydraulic Attachments

The machine supports auxiliary hydraulics for tools such as grapples or forks. The hydraulic system utilizes a Closed-Center Load Sensing System (CLSS) with a variable displacement piston pump to provide necessary flow.

Mounting and Control Systems

The loader linkage features a standard lift arm configuration. Optional mono lever control is available, which can be equipped with a 3rd spool valve for thumb-controlled auxiliary functions in continuous or proportional modes.

Operational Configurations and Guarding

Factory options include an adjustable bucket positioner capable of storing three horizontal settings. Standard guarding and visibility features include rear full fenders, a color rear-view camera with monitor, and ROPS/FOPS Cab Level 2.

All WA380-3H ACTIVE(S/N WA380H20501-UP) assemblies by section

Every catalogued assembly group for the Komatsu WA380-3H ACTIVE(S/N WA380H20501-UP). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

01 Engine, Engine Mounting
Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 01 Engine, Engine Mounting : 00 Maintenance Kit
07***75O-Ring,(F2310-52a0 -15 )2
12***H1Filter1
12***H1Filter Element1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 01 Engine, Engine Mounting : 01 Engine, Engine Mounting
01***45Bolt, Mounting Bracket To Radiator (Top)4
01***65Bolt, Mount Radiator To Frame (Bottom)4
01***50Bolt,(For Tbg/Abe Spec.)8
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 01 Engine, Engine Mounting : 02 Cylinder Block And Attaching Parts
12***94Cylinder Block A1
67***60Oil Switch1
67***10Plug, Pipe (1/2-14 Npt)1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 01 Engine, Engine Mounting : 03 Gasket Kit, Cylinder Block
Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 01 Engine, Engine Mounting : 04 Crank Assembly
12***91Connecting Rod Ass'Y6
12***92Piston Ring A.,Piston6
13***H1Screw12
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 01 Engine, Engine Mounting : 05 Cylinder Head And Attaching Parts
12***H2Exhaust Valve6
12***H2Insert,Valve6
12***H1Spring Seat6
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 01 Engine, Engine Mounting : 06 Gasket Kit, Cylinder Head
Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 01 Engine, Engine Mounting : 07 Cylinder Head Cover, Attaching Parts
07***80Clip1
07***10Hose1
08***36Tie, Cable1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 01 Engine, Engine Mounting : 08 Timing Gear Case And Flywheel Housing
13***H1Housing,Flywheel1
13***H1Cover,Gear1
67***20Plug, Pipe (3/4 Nptf)1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 01 Engine, Engine Mounting : 09 Engine Timing Gear
12***H2Camshaft1
67***20Support, Camshaft Thrust1
67***60Bolt (M8x1.25x22)2
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 01 Engine, Engine Mounting : 10 Engine Lubrication
01***25Bolt, Mount Engine Oil Drain To Fuel Tank2
07***12Gasket,Oil Pan Drain2
07***18Joint, Oil Pan Drain Tube1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 01 Engine, Engine Mounting : 14 Oil Filter
12***H1Compression Spring1
12***H1O-Ring1
12***H1Filter Element1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 01 Engine, Engine Mounting : 15 Water Pump
67***20Seal, O-Ring1
67***50Clamp, Hose (59-83mm)1
67***60Hose, Elbow1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 01 Engine, Engine Mounting : 17 Fan, Belt Tensioner
01***10Screw4
01***32Washer,(With Auto Emergency Steering)4
13***H1Pulley1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 01 Engine, Engine Mounting : 19 Cooling System
12***H1Adaptor1
12***H1Filter1
67***30Plug, Pipe (1/8 Nptf)1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 01 Engine, Engine Mounting : 20 Injection System
07***12Gasket,Mechanical Pump Piping2
07***12Gasket,Injection Pump Piping4
12***H1Isolator,Vibration1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 01 Engine, Engine Mounting : 21 Injection Pump
07***12Gasket,(Without Air Compressor Type) (K2)2
07***12Gasket,(Without Air Compressor Type) (K1)2
67***80Bolt (M6x1.00x16)1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 01 Engine, Engine Mounting : 26 Fuel Pump
07***12Gasket,Injection Pump Piping2
07***12Gasket,(Without Air Compressor Type) (K1)2
07***97Clamp,(With Pre-Fuel Filter)1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 01 Engine, Engine Mounting : 27 Injection Pump Drive
42***20O-Ring1
67***80Stud Bolt2
67***70Nut, Hex Flange (M10-1.50 Thd)4
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 01 Engine, Engine Mounting : 30 Fuel System, Filter
01***16Bolt, Battery To Frame Ground Wire Attaching2
01***55Bolt, Mount Standard Weight3
01***10Screw,(For Lighter)5
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 01 Engine, Engine Mounting : 47 Intake Manifold, Turbocharger
01***06Nut, Regular Hexagon (M8-1.25)1
12***H1Threaded Bush1
13***H1Heater1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 01 Engine, Engine Mounting : 48 Turbocharger
13***91Connection Ass'Y,Oil Drain1
67***30O-Ring,Turbocharger Drain2
67***20Bolt, Flange (M8-1.25x20)2
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 01 Engine, Engine Mounting : 49 Air Filter System, Standard
01***30Bolt - Lower Oil Cooler Outlet Tubemounting2
01***20Bolt - Mount Risers To Cab Floor4
01***08Nut,See Fig. K4010-04a02
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 01 Engine, Engine Mounting : 54 Air Cleaner
Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 01 Engine, Engine Mounting : 57 Exhaust System
01***20Bolt,(For Quick Shift) (Mitsubishi)1
01***75Bolt (M10-1.50x75)1
01***35Screw2
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 01 Engine, Engine Mounting : 60 Engine Control : Unit_03_of_03
01***16Bolt, Mount Washer Tank To Bracket, Bolt4
01***22Screw4
01***40Bolt - M6 X 40lg1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 01 Engine, Engine Mounting : 60 Engine Control : Unit_01_of_03
01***45Screw1
01***06Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-108061
42***52Bellows1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 01 Engine, Engine Mounting : 60 Engine Control : Unit_02_of_03
42***52Bellows1
42***81Pedal1
42***83Spring1
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02 Cooling System
Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 02 Cooling System : 73 Radiator
01***20Bolt,(Large Capacity Type) (Std)8
01***20Bolt, Wiring Harness Mounting Bracket12
01***20Bolt,(For Mono Lever Steering)8
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 02 Cooling System : 75 Hydraulic Oil Cooling
01***35Screw16
01***40Screw2
01***50Screw2
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 02 Cooling System : 77 Cooling Water Pipes
01***16Bolt - Starting Motor Ground Cable11
01***90Screw2
04***10Clip8
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 02 Cooling System : 79 Transmission Oil Cooling
01***16Bolt - Starting Motor Ground Cable3
01***20Bolt, Hose Clamps (Inlet And Return Line Hoses)5
01***25Bolt, Mount Engine Oil Drain To Fuel Tank4
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03 Electric System
Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 03 Electric System : 41 Alternator And Starter Motor
12***H1Bracket1
12***H3Support1
13***H1Pulley1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 03 Electric System : 42 Alternator
13***H1Pulley1
41***02Nut1
41***03Disc1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 03 Electric System : 43 Startermotr
41***02Bushing1
41***03Disc1
41***04Anchor1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 03 Electric System : 56 Electric System, Lighting Unit
01***22Screw4
01***12Screw,(For Side Lamp) (Not Shown)4
01***16Screw,(For Joy Stick Steering)8
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 03 Electric System : 61 Electric System
01***16Bolt, Battery To Frame Ground Wire Attaching3
01***25Bolt,(For High High Lift)1
01***08Screw, Terminal2
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 03 Electric System : 62 Electric System, Relay
01***10Screw,(For Wiper Switch Earth)2
01***16Bolt,(Without Cab)2
01***10Bolt - Relay And Flasher Mounting11
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 03 Electric System : 64 Instrument Box And Attaching Parts
01***16Screw, Mount Parking Lights4
01***12Screw,(With Articulate Indicator)8
01***25Screw4
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 03 Electric System : 66 Windshield-Wiper - Washer System
01***16Screw,(P.O.C. Model) (Except Japan)2
01***16Bolt, Mounting Transmission Control Switch4
01***20Bolt, Hose Clamps (Inlet And Return Line Hoses)2
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 03 Electric System : 68 Radio
42***09Antenna1
42***68Orifice Plate1
42***10Harness1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 03 Electric System : 70 Turning Light
01***20Screw3
01***16Bolt, Mount Solenoid Valve4
41***10Bracket1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 03 Electric System : 71 Back Up Alarm
01***16Washer,(For 35a Alternator)8
42***70Harness1
42***20Horn1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 03 Electric System : 74 Battery
01***45Bolt,(For Slag Handling)4
01***55Bolt,(For Reinforced Type)2
01***08Screw, Terminal6
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 03 Electric System : 75 Battery Main Switch
01***16Bolt, Mount Washer Tank To Bracket, Bolt2
01***05Nut,(For Air Conditioner Less), Nut2
01***19Washer,Spring (With Extinguisher) (D31p)2
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04 Transmission, Universal Joint
Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 04 Transmission, Universal Joint : 75 Universal Joint
01***60Bolt, Hanger Bearing Mounting4
01***20Bolt, Fuel Tank Mounting1
01***50Bolt - Spider To Transmission And To Front Drive20
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 04 Transmission, Universal Joint : 78 Torque Converter
01***25Screw32
01***25Bolt, Mount Cover18
01***60Screw12
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 04 Transmission, Universal Joint : 85 Powershift Transmission
01***90Bolt (M10-1.50x90)1
01***85Bolt,(For 2nd Travel Speed) (Op)1
01***70Bolt - Bracket And Oil Inlet Tubemounting2
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 04 Transmission, Universal Joint : 88 Gears And Shafts
04***60Ring, Snap1
04***62Ring, Snap1
41***33Spring, Wave6
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 04 Transmission, Universal Joint : 89 Pressure Regulating Valve
01***25Screw4
07***14O-Ring,(F4350-63a1a-2 )1
07***38Ring, Seal - Between Sections3
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 04 Transmission, Universal Joint : 92 Powershift Transmission, Control Valv
01***25Bolt,(Without Auto Priming System)16
01***20Bolt,(Large Capacity Type) (Std)1
01***45Bolt,(For Suction? Reversible Fan)1
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05 Rear Axle
Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 05 Rear Axle : 43 Rear Axle
01***60Washer,(Without Rops Guard? Canopy)36
41***70Bolt, Mounting Rear Wheels36
42***01Axle Ass'Y,Rear1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 05 Rear Axle : 44 Axle Insert
01***40Capscrew20
01***20Bolt, Mount Side Weights1
01***45Screw16
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 05 Rear Axle : 45 Differential
01***90Screw12
01***40Capscrew42
01***45Washer,(For Quick Shift) (Mitsubishi)54
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 05 Rear Axle : 46 Brake
01***20Bolt, Fuel Tank Mounting2
01***60Washer,(Without Rops Guard? Canopy)36
41***70Dowel Pin6
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06 Disc Wheel, Chain
Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 06 Disc Wheel, Chain : 77 Disc Wheel
42***40Valve0
42***10Valve4
42***02Side Ring4
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07 Steering
Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 07 Steering : 00 Steering, Steering Mounting
01***25Bolt,(For Canvas Canopy?Head Guard)2
01***20Capscrew2
01***50Screw3
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 07 Steering : 01 Steering Column
01***12Bolt,(See Fig. K0210-16a0)4
01***20Bolt, Hose Clamps (Inlet And Return Line Hoses)4
01***30Bolt, Mounting - Front Hand Rails4
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 07 Steering : 02 Steering Unit
42***01Seal1
42***02Ball1
42***03Bushing1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 07 Steering : 04 Steering Valve, Pipings
01***20Bolt,(For Quick Shift) (Mitsubishi)1
01***30Bolt,(Without Shutter)3
01***30Screw4
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 07 Steering : 05 Steering, Pipings
Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 07 Steering : 06 Steering Cylinder And Pipings
01***20Bolt,(Without Rops Guard? Canopy)4
01***50Bolt,(See Fig.A4010-C3w6)4
01***11Nut,(With Under Mirror)8
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 07 Steering : 07 Steering Cylinder
07***75O-Ring,Cylinder Head1
07***08Plug,(For W/O. Corrosion Resistor)1
07***76Ring, Back-Up (Kit)1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 07 Steering : 08 Emergency Steering Pump And Pipings : Unit_01_of_02
01***70Screw4
01***30Screw12
01***35Screw8
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 07 Steering : 08 Emergency Steering Pump And Pipings : Unit_02_of_02
01***30Bolt,For Weight Adjusting Bolt2
01***30Screw4
01***35Screw4
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 07 Steering : 09 Emergency Steering Pump : Unit_02_of_02
41***70Emer Steering Pump1
41***01Pump1
41***02Flange1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 07 Steering : 09 Emergency Steering Pump : Unit_01_of_02
04***12Ring,Snap (For Ripper)1
42***00Ball Bearing1
42***10Ring1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 07 Steering : 12 Valve Block
07***07O-Ring - (K10)1
07***12O-Ring, Divider Valve Mounting1
42***70O-Ring2
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 07 Steering : 15 Steering
08***36Tie, Cable0
42***60Harness1
42***70Harness1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 07 Steering : 23 Non-Return Valve
42***30Check Valve1
42***01Poppet1
42***02Compression Spring1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 07 Steering : 24 Safety Valve
42***40Safety Valve1
42***05Plug1
42***06Control Slide1
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08 Front Axle
Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 08 Front Axle : 00 Front Axle
01***70Bolt,(North America Spec.)8
01***22Nut,(North America Spec.)16
01***60Washer,(Without Rops Guard? Canopy)36
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 08 Front Axle : 01 Axle Insert
01***40Capscrew20
01***20Bolt, Mount Side Weights1
01***45Screw16
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 08 Front Axle : 02 Differential
01***90Screw12
01***40Capscrew42
01***45Washer,(For Quick Shift) (Mitsubishi)54
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 08 Front Axle : 03 Brake
01***20Bolt, Fuel Tank Mounting2
01***60Washer,(Without Rops Guard? Canopy)36
41***70Dowel Pin6
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09 Brake System
Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 09 Brake System : 00 Brake System
42***39Valve Block1
42***40Cover1
42***41Screw4
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 09 Brake System : 01 Brake Piping, Front Axle
01***45Screw6
01***16Bolt - Starting Motor Ground Cable2
01***20Bolt, Hose Clamps (Inlet And Return Line Hoses)2
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 09 Brake System : 02 Brake Piping, Rear Axle
01***20Bolt,(Without Rops Guard? Canopy)2
01***45Screw6
01***16Bolt - Starting Motor Ground Cable2
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 09 Brake System : 15 Brake Valve
01***08Nut,(For Canvas Canopy?Head Guard)1
41***10Safety Catch1
41***50Screw1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 09 Brake System : 90 Hand Brake And Operating Assembly
01***25Screw2
01***10Bolt - Relay And Flasher Mounting2
01***16Bolt - Starting Motor Ground Cable5
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10 Frame
Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 10 Frame : 00 Front Frame
01***30Bolt, Mounting - Front Hand Rails3
42***21Cover, Front Access1
42***51Front Frame1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 10 Frame : 01 Rear Frame
01***60Screw4
01***90Bolt, Adjusting4
01***10Screw,(For Lighter)5
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 10 Frame : 03 Hinge
01***40Bolt,(Dust And Dirt Protection)10
01***25Bolt,(For High High Lift)2
01***95Screw4
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 10 Frame : 04 Rear Frame, Lubrication Pipe
01***16Bolt - Starting Motor Ground Cable3
01***20Bolt, Hose Clamps (Inlet And Return Line Hoses)3
04***10Clip - Fuel Sensor Harness14
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 10 Frame : 06 Fender : Unit_01_of_02
01***30Bolt,(Not Used With Emergency Str.)6
01***16Bolt, Mounting Transmission Control Switch8
01***20Bolt, Hose Clamps (Inlet And Return Line Hoses)12
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 10 Frame : 06 Fender : Unit_02_of_02
01***16Bolt, Mounting Transmission Control Switch8
01***20Bolt,(Forwarded Individually Parts)26
01***20Bolt, Hose Clamps (Inlet And Return Line Hoses)12
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 10 Frame : 07 Radiator Guard
01***20Bolt, Hose Clamps (Inlet And Return Line Hoses)4
01***55Bolt,(With Joy Stick Steering)4
01***32Washer,(With Auto Emergency Steering)4
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 10 Frame : 09 Radiator Guard And Bonnet
01***25Bolt, Mount Engine Oil Drain To Fuel Tank5
01***95Screw8
01***16Nut - M208
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 10 Frame : 10 Body Guard
01***25Bolt,L.H. (For Add. Air Compressor)10
01***55Bolt,(With Joy Stick Steering)2
01***10Nut,(Without Air Conditioner)2
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 10 Frame : 14 Platform
01***35Bolt,(For Quick Shift) (Mitsubishi)1
01***50Screw12
01***12Screw,Sems1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 10 Frame : 16 Ladder : Unit_01_of_02
01***16Bolt - Starting Motor Ground Cable9
01***20Bolt - Mount Risers To Cab Floor18
01***25Bolt,L.H. (For Add. Air Compressor)6
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 10 Frame : 16 Ladder : Unit_02_of_02
01***20Bolt,(Forwarded Individually Parts)6
01***16Bolt - Starting Motor Ground Cable4
01***25Bolt, Mount Engine Oil Drain To Fuel Tank6
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11 Drivers Cab
Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 11 Drivers Cab : 00 Safety Cabin
01***95Bolt, Yoke Mounting6
01***40Screw2
01***40Screw2
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 11 Drivers Cab : 01 Safety Cabin, Doors
01***16Bolt, Mount Washer Tank To Bracket, Bolt2
01***12Screw,(With Articulate Indicator)8
01***25Bolt - Relay Mounting16
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 11 Drivers Cab : 04 R.O.P.S Canopy
01***35Bolt, Hydraulic Tank Mounting2
01***25Bolt,L.H. (For Add. Air Compressor)2
01***45Washer,(For Travel Motor) (Not Show)2
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 11 Drivers Cab : 11 Soundproofing Of Cabin
01***12Bolt, Bolt,(No Need To Quick Shift)2
01***10Bolt - Relay And Flasher Mounting3
01***16Bolt, Mounting Transmission Control Switch6
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 11 Drivers Cab : 17 Ventilation
42***40Duct Assembly, Air1
ND***20Screw With Washer, Tapping2
ND***20Duct,Air1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 11 Drivers Cab : 18 Heater
01***10Bolt - Relay And Flasher Mounting2
01***16Bolt - Starting Motor Ground Cable8
01***25Bolt, Mount Engine Oil Drain To Fuel Tank9
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 11 Drivers Cab : 19 Air Conditioner
01***25Bolt,(For Automatic)1
01***25Bolt,(Without Rops Guard? Canopy)6
01***45Bolt, Mounting Bracket To Radiator (Top)1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 11 Drivers Cab : 27 Drivers Seat, Attaching Parts
01***40Bolt,(For Position Fixing)2
01***25Bolt,Without Revolution Sensor4
01***25Bolt,L.H. (For Add. Air Compressor)4
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12 Tools, Accessory, Lettering
Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 12 Tools, Accessory, Lettering : 00 Wedge And Attachement
04***10Pin,Cotter? (For Ripper)2
41***20Underl Wedge2
41***40Bonnet Fastener2
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 12 Tools, Accessory, Lettering : 01 Tools And Accessory
01***05Capscrew1
01***16Bolt, Mounting Transmission Control Switch2
01***16Washer, 1.6 mm Thick1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 12 Tools, Accessory, Lettering : 02 Tools
07***03Cartridge - Grease1
09***06Wrench Set,8x10? 12x14? 13x17?1
09***00Wrench - Adjustable1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 12 Tools, Accessory, Lettering : 03 Lettering
09***60Decal, Komatsu (Black Lettering) (Behind Driver'S Door)3
41***20Caution Plate2
42***50Plate? Stripe,Stripe? L.H1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 12 Tools, Accessory, Lettering : 04 Decals, German : Unit_02_of_02
09***00Tag,Do Not Operate (German)1
41***90Decal1
42***51Decal1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 12 Tools, Accessory, Lettering : 04 Decals, German : Unit_01_of_02
09***00Plate? Safety,Accumulator Warning1
09***00Tag,Do Not Operate (German)2
42***50Decal1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 12 Tools, Accessory, Lettering : 05 Decals, English : Unit_02_of_02
09***00Tag,(For South And North America)1
41***90Decal1
42***62Decal1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 12 Tools, Accessory, Lettering : 05 Decals, English : Unit_01_of_02
09***00Plate? Safety,(English) (Lettering Type)3
09***00Tag,(For South And North America)1
42***10Kit, Safety And Instruction1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 12 Tools, Accessory, Lettering : 06 Decals, French : Unit_02_of_02
41***90Decal1
42***10Caution Plate1
42***22Decal1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 12 Tools, Accessory, Lettering : 06 Decals, French : Unit_01_of_02
09***00Decal, Safety, Explosion Hazard4
42***50Decal1
42***10Plate1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 12 Tools, Accessory, Lettering : 08 Decals, Italian : Unit_02_of_02
41***90Decal1
42***10Caution Plate1
42***22Decal1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 12 Tools, Accessory, Lettering : 08 Decals, Italian : Unit_01_of_02
09***00Plate? Safety,Accumulator8
42***50Decal1
42***60Caution Plate2
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 12 Tools, Accessory, Lettering : 09 Decals, Spanish : Unit_02_of_02
41***90Decal1
42***10Caution Plate1
42***32Decal1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 12 Tools, Accessory, Lettering : 09 Decals, Spanish : Unit_01_of_02
09***00Plate? Safety,Acc.(Spanish)(Cen.Sou.America)8
42***50Decal1
42***50Caution Plate2
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 12 Tools, Accessory, Lettering : 10 Decals, Swedish : Unit_02_of_02
41***90Decal1
42***10Caution Plate1
42***82Decal1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 12 Tools, Accessory, Lettering : 10 Decals, Swedish : Unit_01_of_02
42***50Decal2
42***60Decal1
42***80Caution Plate4
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 12 Tools, Accessory, Lettering : 11 Decals, Danish : Unit_01_of_02
42***50Decal2
42***80Decal1
42***00Caution Plate4
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 12 Tools, Accessory, Lettering : 11 Decals, Danish : Unit_02_of_02
41***90Decal1
42***30Caution Plate1
42***02Decal1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 12 Tools, Accessory, Lettering : 12 Decals, Finnish : Unit_02_of_02
41***90Decal1
42***70Caution Plate1
42***92Decal1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 12 Tools, Accessory, Lettering : 12 Decals, Finnish : Unit_01_of_02
42***50Decal2
42***20Decal1
42***40Caution Plate4
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 12 Tools, Accessory, Lettering : 13 Decals, Norwegian : Unit_01_of_02
42***50Decal2
42***00Decal1
42***20Caution Plate4
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 12 Tools, Accessory, Lettering : 13 Decals, Norwegian : Unit_02_of_02
41***90Decal1
42***50Caution Plate1
42***72Decal1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 12 Tools, Accessory, Lettering : 14 Decals, Dutch : Unit_01_of_02
42***50Decal2
42***60Decal1
42***80Caution Plate4
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 12 Tools, Accessory, Lettering : 14 Decals, Dutch : Unit_02_of_02
41***90Decal1
42***10Caution Plate1
42***32Decal1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 12 Tools, Accessory, Lettering : 15 Decals, Portuguese : Unit_02_of_02
41***90Decal1
42***90Caution Plate1
42***12Decal1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 12 Tools, Accessory, Lettering : 15 Decals, Portuguese : Unit_01_of_02
42***50Decal2
42***40Decal1
42***60Caution Plate4
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 12 Tools, Accessory, Lettering : 16 Decals, Greek : Unit_02_of_02
41***90Decal1
42***50Caution Plate1
42***22Decal1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 12 Tools, Accessory, Lettering : 16 Decals, Greek : Unit_01_of_02
42***50Decal2
42***00Decal1
42***20Caution Plate4
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13 Hydraulic System
Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 13 Hydraulic System : 00 Pumps For Hydraulic System : Unit_02_of_02
01***35Screw4
01***35Screw8
01***40Screw4
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 13 Hydraulic System : 00 Pumps For Hydraulic System : Unit_01_of_02
01***35Screw4
01***30Bolt,(Tm8072-121)8
01***45Screw8
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 13 Hydraulic System : 03 Hydraulic Pump : Unit_02_of_02
01***45Washer, Spring4
04***28Pin, Dowel - Transmission Case, Pin-Dowel4
04***20Ring, Retaining1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 13 Hydraulic System : 03 Hydraulic Pump : Unit_01_of_02
42***08Packing Kit1
42***01Bolt Kit1
42***02Bolt Kit1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 13 Hydraulic System : 06 Oil Tank : Unit_02_of_02
01***35Bolt, Hydraulic Tank Mounting4
01***20Bolt, Hose Clamps (Inlet And Return Line Hoses)6
01***25Bolt, Mount Engine Oil Drain To Fuel Tank6
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 13 Hydraulic System : 06 Oil Tank : Unit_01_of_02
01***35Bolt, Hydraulic Tank Mounting4
01***20Bolt, Hose Clamps (Inlet And Return Line Hoses)6
01***25Bolt, Mount Engine Oil Drain To Fuel Tank8
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 13 Hydraulic System : 08 Pipings For Remote Control Valve : Unit_02_of_02
01***20Screw3
01***10Bolt - Relay And Flasher Mounting2
01***40Screw2
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 13 Hydraulic System : 08 Pipings For Remote Control Valve : Unit_01_of_02
Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 13 Hydraulic System : 09 Remote Control Valve : Unit_02_of_02
41***06Retainer1
41***07Banjo Bolt1
41***40Remote Control Valve1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 13 Hydraulic System : 09 Remote Control Valve : Unit_01_of_02
01***12Bolt,(See Fig. K0210-16a0)1
01***16Bolt, Mounting Transmission Control Switch8
01***25Bolt - Relay Mounting1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 13 Hydraulic System : 10 Pressure Pipings To Control Valve
01***35Screw8
01***25Bolt, Mount Engine Oil Drain To Fuel Tank2
01***11Nut,(With Under Mirror)2
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 13 Hydraulic System : 12 Control Valve : Unit_03_of_03
01***55Bolt, Mount Lh Bracket4
01***75Screw3
01***32Washer,(Not Used With Emergency Str.)7
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 13 Hydraulic System : 12 Control Valve : Unit_01_of_03
42***50Control Valve1
42***10Actuater1
42***20Control Valve1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 13 Hydraulic System : 12 Control Valve : Unit_02_of_03
42***00Control Valve1
42***50Control Valve1
42***02O-Ring1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 13 Hydraulic System : 25 Lift Cylinder And Pipings
01***65Screw16
01***35Screw32
01***40Screw16
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 13 Hydraulic System : 26 Lift Cylinder
01***45Bolt,(Cold Terrain Spec.)6
01***90Screw4
01***80Washer,(For R.H. Steering)4
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 13 Hydraulic System : 27 Bucket Cylinder And Pipings
01***10Bolt,For Weight Adjusting Bolt2
01***65Screw4
01***35Screw16
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 13 Hydraulic System : 28 Bucket Cylinder
01***40Bolt,(Dust And Dirt Protection)6
01***65Bolt,(For Shipping)12
01***45Washer,(Without R.O.P.S.)12
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 13 Hydraulic System : 40 Pipings For Accessory Equipment
01***35Screw32
01***20Bolt, Hose Clamps (Inlet And Return Line Hoses)8
01***50Bolt,(See Fig.A4010-C3w6)6
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14 Boom, Thrust Frame - Arm
Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 14 Boom, Thrust Frame - Arm : 00 Boom
01***30Screw13
01***08Washer,(For Mounting First Aid Kit)8
07***00Fitting, Grease - Upper Hinge Pin8
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15 Equipment
Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 15 Equipment : 00 Bucket
01***60Washer,Single Flange (Trimming)12
42***10Screw20
42***20Nut20
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 15 Equipment : 02 Quick Change
01***20Bolt,(For Mono Lever Steering)16
01***32Washer,(With Auto Emergency Steering)14
42***21Pin Ass'Y2
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 15 Equipment : 04 Fork Lift
01***80Screw2
42***03Prongs2
42***05Carrier1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 15 Equipment : 10 Ripper Tooth Wear Plate And Marker Lights
01***70Bolt, Mount Bracket And Oil Inlet Tube, Bolt2
01***16Screw,(P.O.C. Model) (Except Japan)4
01***50Wing Nut2
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 15 Equipment : 12 Bucket Position Indicator : Unit_02_of_02
01***16Bolt - Starting Motor Ground Cable2
01***20Bolt - Mount Risers To Cab Floor4
01***25Bolt,L.H. (For Add. Air Compressor)2
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 15 Equipment : 12 Bucket Position Indicator : Unit_01_of_02
01***20Bolt - Mount Risers To Cab Floor4
01***25Bolt,L.H. (For Add. Air Compressor)2
01***35Bolt,R.H. (For Add. Air Compressor)2
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 15 Equipment : 62 A.L.S. Equipment : Unit_01_of_03
01***30Screw20
01***20Bolt - Mount Risers To Cab Floor8
01***55Bolt,(With Joy Stick Steering)4
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 15 Equipment : 62 A.L.S. Equipment : Unit_02_of_03
01***30Screw20
01***20Bolt - Mount Risers To Cab Floor8
01***55Bolt,(With Joy Stick Steering)4
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 15 Equipment : 62 A.L.S. Equipment : Unit_03_of_03
42***70Pressure Tank1
42***01Pressure Tank2
42***02Two Way Valve1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 15 Equipment : 70 Central Lubrication : Unit_01_of_02
01***35Bolt,(For Position Fixing)10
01***06Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-1080610
01***12Washer,(With Body Positioner)16
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 15 Equipment : 70 Central Lubrication : Unit_02_of_02
41***02Distributor1
41***03Distributor1
41***04Distributor1
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 15 Equipment : 76 Counterweight
01***80Screw4
04***00Adapter Sleeves2
22***80Washer, Mount8
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Komatsu : Wa380-3h Active(S/N Wa380h20501-Up) : 15 Equipment : 89 Special Equipment Italy
01***25Bolt,(For Canvas Canopy?Head Guard)2
01***35Screw4
01***16Screw, Mount Parking Lights4
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Frequently asked questions

What engine powers the WA380-3H ACTIVE?

The machine is equipped with a Komatsu S6D108 engine, which is a 4-cycle, water-cooled, in-line, 6-cylinder, direct injection engine featuring a turbocharger.

What is the operating weight of this model?

The operating weight for the WA300-3 series varies by configuration but is documented at approximately 17.7 tonnes (approx. 39,000 lbs).

What model replaced the WA380-3?

The WA380-3 was succeeded by subsequent generations including the WA380-6 and the more advanced WA380-8, which features SmartLoader Logic and improved hydraulic efficiency.

What WA380-3H ACTIVE(S/N WA380H20501-UP) owners discuss

What are common symptoms of fuel system issues during engine starting on the WA380-3 series?
Hard starting can be caused by a bypass in the check valve from the injection pump, which drops transfer pump pressure over time. Inspect the lift pump screen located in the banjo bolt on the inlet side; cleaning this is recommended during routine service. Additionally, verify that the spring and ball within the hex plug are not worn or lost, as this prevents the pump from maintaining proper pressure.
How can hydraulic performance issues be differentiated between a single function failure and a system-wide problem?
If all functions (boom, arm, bucket, swing, and travel) become slow simultaneously, investigate common causes such as low hydraulic oil level, incorrect oil specification, clogged filters, or engine RPM fluctuations. If only one specific function is slow, focus on circuit-specific components like cylinder leakage, control-valve spool operation, hose restrictions, or pilot control input.
What diagnostic pattern should be used to identify internal hydraulic leakage in the WA380-3 series?
Monitor for performance that is functional when the oil is cold but becomes weak once the machine reaches operating temperature. As hydraulic oil warms and viscosity decreases, excessive internal leakage in the pump, control valve, or motors may become more apparent.
What are the typical causes of engine power loss under heavy loading in this machine class?
Loss of power during heavy cuts or combined hydraulic movements often stems from airflow or fuel restrictions. Check air-filter condition, fuel filters, fuel tank venting, and intake/charge-air hoses for loose clamps or damage. If engine RPM drops heavily when hydraulics are engaged, the hydraulic system may be placing excessive load on the engine.
What electrical or sensor issues are frequently reported in Komatsu heavy equipment?
Due to heavy reliance on electronic control systems, machines may experience intermittent starting, dashboard failures, or random shutdowns. A single faulty sensor or unstable power supply can trigger multiple warning signals across the system.
What should be checked when inspecting a used WA380-3H ACTIVE for potential mechanical or hydraulic issues?
Verify the condition of the hydraulic oil and filters, and check for signs of overheating in the cooling package (radiator, oil cooler, and charge-air cooler). Inspect the fuel system for pressure stability by checking the lift pump screen and transfer pump. For travel issues, check track tension and mechanical resistance on both sides to rule out undercarriage or final drive problems before assuming motor failure.

Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.

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