Komatsu PC400LC-1(S/N 10001-UP)
Komatsuhydraulic excavatorlarge (pc300 - )

Komatsu PC400LC-1(S/N 10001-UP)

Maintenance schedule, common problems & OEM parts breakdown

The Komatsu PC400LC-1 (S/N 10001-UP) is a heavy-class crawler hydraulic excavator designed for high-production earthmoving and mass excavation. This machine belongs to the PC400 series, featuring a robust configuration capable of handling demanding construction and mining tasks. The series includes various configurations such as fixed or variable gauge undercarriages and different bucket capacities. It serves as a foundational model in Komatsu's heavy excavator lineage, preceding later iterations like the PC400-3 and PC400-5.

Across generations, the PC400 series evolved from early mechanical configurations to advanced systems featuring integrated telematics and improved emissions compliance. The PC400LC-1 remains a significant machine in the used market due to its durable chassis and established parts availability. Maintenance of this era's machines focuses on managing hydraulic integrity and engine longevity, making it a staple for fleets requiring reliable heavy-duty performance without the complexity of modern Tier 4 Final aftertreatment systems.

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 PC400LC-1(S/N 10001-UP) specifications

Engine

ModelKomatsu SAA6D125E-5
Gross Power270 kW (362 HP)
Net Power257 kW (345 HP)
Displacement11.04 L
Cylinders6
Emissions TierU.S. EPA Tier 3 and EU Stage 3A

Weights

Operating WeightVaries by configuration; approximately 40 tons

Dimensions

Max Lift Height20 feet (6.1 m)

Performance

Maximum Travel Speed (High)5.5 km/h (3.4 mph)
Maximum Travel Speed (Mid)4.0 km/h (2.5 mph)
Maximum Travel Speed (Low)3.0 km/h (1.9 mph)
Swing Speed9.1 min-1
Gradeability70% (35°)
Maximum Drawbar Pull330 kN (33,700 kg)

Forces

Relief Valve Setting (Implement Circuits)37.3 MPa (380 kg/cm²)
Relief Valve Setting (Swing Circuit)27.9 MPa (285 kg/cm²)

Service capacities (summary)

Fuel Tank650 L
Hydraulic Tank248 L
Engine Oil37.0 L
Coolant36.0 L

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

PC400LC-1(S/N 10001-UP) fluids & capacities

SystemCapacityRecommended fluid
Engine crankcase (with filter)not documented for this exact serial range — verify with your dealerKomatsu Diesel engine oil
Cooling systemnot documented for this exact serial range — verify with your dealerKomatsu Super-coolant AF-NAC
Fuel tank650 L (171.76 US gal)not documented for this exact serial range — verify with your dealer
Hydraulic system totalnot documented for this exact serial range — verify with your dealerKomatsu Hydraulic oil
Hydraulic tanknot documented for the exact serial range — verify with your dealerKomatsu Hydraulic oil
Greasenot documented for this exact serial range — verify with your dealernot documented for this exact serial range — verify with your dealer

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

Komatsu PC400LC-1(S/N 10001-UP) maintenance schedule

Service intervalTasks
Every 10 h
  • Check engine oil level and condition
  • Verify hydraulic fluid level via sight glass
  • Inspect coolant level and cap security
  • Drain water from fuel separator
  • Monitor air filter restriction indicator
  • Inspect track tension and shoe condition
Every 50 h
  • Lubricate all boom, stick, bucket, and swing bearing points
  • Check battery electrolyte level
  • Inspect fan belt and alternator belt tension
  • Adjust air conditioner compressor belt tension
Every 250 h
  • Change engine oil and filter cartridge
  • Perform visual walk-around inspection
  • Check all belts and hoses for wear
  • Inspect air filter outer element
  • Drain fuel water separator
Every 500 h
  • Replace fuel pre-filter cartridge
  • Replace hydraulic return filter element
  • Perform battery service and load test
  • Conduct coolant SCA test
  • Take oil sample for analysis
  • Inspect undercarriage components
Every 1,000 h
  • Replace fuel main filter cartridge
  • Replace hydraulic oil filter element
  • Change swing machinery case oil
  • Inspect turbocharger and engine exhaust clamps
  • Check nitrogen gas charge pressure in breaker accumulator
  • Replace hydraulic tank additional breather element
Every 2,000 h
  • Change hydraulic system oil
  • Perform coolant flush and replacement
  • Replace hydraulic hoses
  • Inspect final drive components
  • Conduct comprehensive component evaluation

Servicing the PC400LC-1(S/N 10001-UP) beyond the schedule

Predictive Maintenance & Fluid Analysis

Utilize oil wear analysis at every major service interval to monitor wear metals like iron, copper, and lead. Regularly sample hydraulic fluid to track particle count (ISO cleanliness), water content, and oxidation levels. Monitoring engine oil for fuel dilution or soot buildup prevents catastrophic engine failure. Use telematics data to track fault codes and fuel consumption trends, allowing for proactive component replacement before downtime occurs.

Corrective & Common Repairs

Frequent repairs often involve addressing hydraulic hose cracks or leaks at high-pressure connection points. Monitor the swing pinion grease level and swing machinery case oil to prevent bearing damage. If hydraulic performance drops, inspect the hydraulic return filter and strainer for debris. Ensure track tension is adjusted correctly to prevent excessive wear on idlers and spлоckets. Always verify the integrity of bucket pins and bushings during inspections.

Overhaul & Rebuild Points

Major overhaul milestones include replacing hydraulic hoses and performing a full coolant flush at 2,000-hour intervals. During deep rebuilds, inspect the turbocharger for play and check all engine exhaust pipe clamps for tightness. Evaluate the final drive oil condition; if contamination is found, change both sides of the final drive oil. Comprehensive structural inspections of boom and stick welds are required during high-hour component evaluations.

Seasonal & Environment Servicing

In dusty environments, clean or replace the air cleaner outer element more frequently to prevent engine ingestion. During cold weather operation, implement extended engine warm-up and hydraulic system warm-up procedures. After long-term storage, check all battery voltages and inspect for rodent damage in wiring harnesses. For machines operating with hydraulic breakers, adjust hydraulic oil replacement intervals as breaker use accelerates oil deterioration.

PC400LC-1(S/N 10001-UP) common service parts

Part numberPart
07000-02080O-Ring,Hydraulic Oil FilterCheck fitment →
07002-03334O-Ring, At Transmission FilterCheck fitment →
01220-40820Screw, Filter MountingCheck fitment →
205-60-51270ElementCheck fitment →
205-60-51430Element,FilterCheck fitment →

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

PC400LC-1(S/N 10001-UP) fault codes & troubleshooting

CodeMeaningLikely causeWhat to do
E10Engine controller power failure or engine control drive system circuit malfunction (may cause engine stall)Engine controller (ECM) power connections, fuses, or ground wires failureInspect ECM power connections, fuses, or ground wires
E11Engine control system failure resulting in reduced output power to protect the engineHigh coolant temperature, low oil pressure, or air filter restrictionCheck coolant temperature, oil pressure, and air filter status
CA115Engine crankshaft speed sensor failure or backup speed sensor failureBroken sensor, wiring issue, or connector corrosionReplace the speed sensor and verify voltage at the pin connector
CA122Intake air pressure sensor feedback voltage is too highSensor malfunction or wiring faultVerify the intake pressure sensor and associated wiring
CA123Intake air pressure sensor feedback voltage is too lowSensor short circuit or airflow restrictionCheck for a sensor short or an airflow restriction
CA451Common rail pressure sensor feedback value is too highMalfunction in the rail sensor or actual overpressure conditionDiagnose the fuel rail pressure sensor or pump lines
CA452Common rail pressure sensor feedback value is too lowMalfunction in the rail sensor or actual underpressure conditionDiagnose fuel rail pressure sensor or pump lines
DGH2KBHydraulic oil temperature sensor short circuitFaulty temperature sensorReplace the temperature sensor
DW43KBTravel speed solenoid valve short circuitElectrical short in the travel speed control solenoidReplace the solenoid valve
DXA8KBFront pump PC-EPC solenoid valve short circuitWire chafing or electrical short in the solenoid circuitInspect for wire chafing or shorting at the solenoid

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

PC400LC-1(S/N 10001-UP) attachments & work tools

Buckets

Standard capacities range from 1.30 m³ (1.70 yd³) to 2.20 m³ (2.88 yd³). Available configurations include digging, ditching, and clamshell buckets (rotating or non-rotating), as well as crusher buckets for on-site recycling.

Hydraulic hammers

Compatible with hydraulic breakers, including box, side, and top breaker hammer types. Specific weight class for the hammer is not documented for this exact serial range — verify with your dealer.

Quick couplers

The machine supports quick coupler attachments for efficient tool changes. Pin-on or coupler-style mounting options are available for various work tools.

Thumbs/grapples

Compatible with hydraulic thumbs, mechanical thumbs, and various grapple types including hydraulic, mechanical, and rotating hydraulic grapples. These allow for improved material handling and sorting.

Rippers

The machine is compatible with frost rippers and standard ripper attachments for breaking hard ground or rock.

Hydraulic-kit notes

Equipped with a closed-center load-sensing hydraulic system (HydrauMind) featuring variable displacement piston pumps. The system provides high flow output at lower engine RPM via large displacement implement pumps.

All PC400LC-1(S/N 10001-UP) assemblies by section

Every catalogued assembly group for the Komatsu PC400LC-1(S/N 10001-UP). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

Engine Related Parts And Electrical System
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Air Cleaner Connection
01***25Bolt - Rear Guard Mounting8
01***30Bolt,Radio Controlled Slag Handling6
01***20Bolt,(For Quick Shift) (Mitsubishi)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Battery And Heater Relay
01***20Bolt,(Used When Towing Winch)1
01***16Bolt (With Air Heater & Conditioner)2
01***20Bolt,(Without Rops Guard? Canopy)5
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Bypass Filter And Piping
01***20Bolt,(With Auto Emergency Steering)8
01***25Bolt,(Without Rops Guard? Canopy)2
01***30Bolt,(Not Used With Emergency Str.)5
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Electrical System (For Loader)
01***25Bolt,(Without Rops Guard? Canopy)2
01***45Bolt, Mounting Bracket To Radiator (Top)1
01***32Washer,(Not Used With Emergency Str.)3
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Electrical System(#10124-10281)
01***16Bolt, Mount Washer Tank To Bracket, Bolt4
01***16Bolt (With Air Heater & Conditioner)2
01***20Bolt,(For Quick Shift) (Mitsubishi)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Electrical System(#10282-)
01***16Bolt (With Air Heater & Conditioner)2
01***20Bolt,(For Quick Shift) (Mitsubishi)2
01***20Bolt,(Without Rops Guard? Canopy)10
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Engine Mount(#10001-10281)
01***85Bolt2
01***70Bolt,(For Rops)8
01***45Washer,(Without R.O.P.S.)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Engine Mount(#10282-)
01***85Bolt2
01***70Bolt,(For Rops)8
01***45Washer,(Without R.O.P.S.)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Fuel Control Lever Linkage
01***30Bolt,(For Quick Shift) (Mitsubishi)3
01***20Bolt,(Without Rops Guard? Canopy)3
01***30Bolt,(For Rubber Shoe)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Fuel Tank And Piping
01***20Bolt,(Without Rops Guard? Canopy)3
01***25Bolt,(Without Rops Guard? Canopy)2
01***30Bolt,(For Rubber Shoe)6
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Instrument Panel (1/2)
01***20Bolt,(With Auto Emergency Steering)8
01***12Screw,(For Side Lamp) (Not Shown)2
01***10Washer,Spring (For Engine Room Lamp)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Instrument Panel (1/2) (For Wrist Control) (Except Japan)
01***20Bolt,(Sandy? Dusty Terrain Spec.)7
01***20Bolt,(With Auto Emergency Steering)9
01***12Screw,(For Side Lamp) (Not Shown)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Instrument Panel (2/2)
01***12Bolt, Bolt,(No Need To Quick Shift)1
01***20Screw (Not Illustrated)4
01***12Screw,(Additional Sun Visor)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Instrument Panel (2/2) (For Wrist Control) (Except Japan)
01***16Bolt, Mount Washer Tank To Bracket, Bolt1
01***20Screw (Not Illustrated)4
01***12Screw,(Additional Sun Visor)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Muffler And Connection
01***25Bolt,(Without Rops Guard? Canopy)1
01***35Bolt, Bolt, Mount Tubes To Switch And Work Pumps5
01***70Screw2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Power Take Off (1/3)
01***20Bolt,(For Quick Shift) (Mitsubishi)1
01***25Bolt,(For Canvas Canopy?Head Guard)1
01***60Bolt, Mount Tube To Switch Pump2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Power Take Off (2/3)
01***60Bolt2
01***25Bolt,(Without Rops Guard? Canopy)2
01***30Bolt,(Not Used With Emergency Str.)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Power Take Off (3/3)
01***20Bolt,(Without Rops Guard? Canopy)1
01***25Screw4
01***25Washer,Spring?For Additional Rear Lam4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Radiator And Oil Cooler
01***30Bolt,(For France Noise Suppression)64
01***35Bolt - Torque Converter Totransmission Mounting32
01***25Bolt,(For Canvas Canopy?Head Guard)24
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Radiator Piping
01***16Bolt, Battery To Frame Ground Wire Attaching1
01***40Bolt,(With Service Valve R.H.)4
01***32Washer,(With Auto Emergency Steering)1
See all parts with full part numbers in Heavy Parts AI →
Optional Parts
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Air Conditioner Piping (Cooling)(#10124-10277)
01***16Bolt (With Air Heater & Conditioner)2
01***20Bolt,(Without Rops Guard? Canopy)12
01***23Washer, Wiring Harness Mounting Bracket2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Air Conditioner Piping (Cooling)(#10278-)
01***16Bolt (With Air Heater & Conditioner)4
01***20Bolt,(Without Rops Guard? Canopy)4
01***35Bolt, Bolt, Mount Tubes To Switch And Work Pumps4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Air Conditioner Piping (Heating)(#10124-10277)
01***20Bolt,(For Quick Shift) (Mitsubishi)2
01***32Washer,(With Auto Emergency Steering)2
07***59Clamp,See Fig. K4010-05a04
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Air Conditioner Piping (Heating)(#10278-)
01***20Bolt,(Without Rops Guard? Canopy)6
01***32Washer,(Not Used With Emergency Str.)6
07***59Clamp,See Fig. K4010-05a04
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Air Piping And Air Conditioner Related Parts
01***12Bolt,(With Cylinder Cover)4
01***16Bolt (With Air Heater & Conditioner)4
01***20Bolt,(For Quick Shift) (Mitsubishi)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Car Cooler Piping (1/2)(#10124-10277)
01***25Bolt - Rear Guard Mounting10
01***20Bolt,(With Auto Emergency Steering)8
01***30Bolt,(Not Used With Emergency Str.)5
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Car Cooler Piping (1/2)(#10278-)
01***20Bolt,(With Auto Emergency Steering)6
01***25Bolt,Without Revolution Sensor1
01***30Bolt,(For Mechanical Governor)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Car Cooler Piping (2/2)(#10124-10277)
01***20Bolt,(Sandy? Dusty Terrain Spec.)4
01***30Bolt,Radio Controlled Slag Handling2
01***35Bolt - Torque Converter Totransmission Mounting2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Car Cooler Piping (2/2)(#10278-)
01***20Bolt,(Sandy? Dusty Terrain Spec.)4
01***30Bolt,Radio Controlled Slag Handling2
01***35Bolt - Torque Converter Totransmission Mounting2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Compressor And Control Panel
20***60Case Ass'Y1
20***70Switch1
20***80Resistor1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Compressor Related Parts (For Air Conditioner)
01***20Bolt,(With Auto Emergency Steering)4
01***30Bolt,(Not Used With Emergency Str.)2
01***35Bolt, Bolt, Mount Tubes To Switch And Work Pumps2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Condenser Unit
20***70Condenser1
20***80Motor,Fan1
20***90Shroud1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Condenser Unit (For Conditioner)
20***50Condenser Ass'Y1
20***50Core1
20***60Shroud, Fan1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Control Unit (For Air Conditioner)
20***60Control Ass'Y1
20***00Switch1
20***10Ornament1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Cooling Unit
20***60Evaporator1
20***70Case Ass'Y1
20***80Grille Ass'Y1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Cooling Unit (For Air Conditioner)
20***10Cooling Unit1
20***10Case Ass'Y1
20***20Case Ass'Y1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Deluxe Seat
01***06Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-108064
20***40Belt,Seat1
20***00Seat Ass'Y1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Electrical System (For Air Conditioner)(#10124-10277)
01***12Bolt,(With Cylinder Cover)2
01***16Bolt (With Air Heater & Conditioner)4
01***20Bolt,(For Quick Shift) (Mitsubishi)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Electrical System (For Air Conditioner)(#10278-)
01***12Bolt,(With Cylinder Cover)2
01***16Bolt (With Air Heater & Conditioner)4
01***20Bolt,(For Quick Shift) (Mitsubishi)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : F.O.P.S.
01***20Bolt,(Without Rops Guard? Canopy)2
01***25Bolt,(Without Rops Guard? Canopy)6
01***40Bolt,(With Center Guard)32
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Freon Gas Compressor (For Air Conditioner)
04***20Ring, Snap1
14***90Bearing2
14***10Clutch Ass'Y1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Head Guard
01***80Bolt, Mount Tubes To Switch And Work Pumps6
01***32Washer,(Not Used With Emergency Str.)6
04***60Screw,Machine Model (For Ec Reg.)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Light Work Bucket? 20m3? 1725mm
09***36Pin5
20***42Adapter (Welded)5
20***43Adapter (Welded)5
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Light Work Bucket? 20m3? 1725mm? With Hook (Except Japan)
09***36Pin5
20***42Adapter (Welded)5
20***52Tooth5
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Long Arm
01***12Bolt,(Without R.P.C.U.)2
01***90Bolt,For Reversible Fan4
01***19Washer,(Not Used With Ventilator)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Long Life Tooth (For Backhoe Bucket)
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Modified Chassis Parts (For Air Conditioner)(#10278-)
01***30Bolt,(Not Used With Emergency Str.)4
01***32Washer,(Not Used With Emergency Str.)4
20***80Frame1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Modified Chassis Parts (For Car Cooler)(#10278-)
01***30Bolt,(Not Used With Emergency Str.)4
01***32Washer,(Not Used With Emergency Str.)4
20***80Frame1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : P.O.C. Valve Piping (For Cold Weather) (B)
01***65Bolt,R.H4
01***30Bolt,(For Quick Shift) (Mitsubishi)4
01***23Washer,(For Shipping)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Pre-Fuel Filter (Except Japan)
01***29Washer,Spring (Cold Weather Spec.)7
02***32Bolt7
02***45Hose1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Radio-Less
01***10Screw,(For Lighter)7
01***03Nut,(With Joy Stick Steering)2
01***10Washer,Spring (For Engine Room Lamp)7
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Radio-Less (For Wrist Control) (Except Japan)
01***10Screw,(For Lighter)7
01***03Nut,(With Joy Stick Steering)2
01***10Washer,Spring (For Engine Room Lamp)7
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Ripper
09***08Pin,(Without Pin Puller)1
19***31Point,Short?(Yellow)1
20***10Ripper Ass'Y1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Ripper Bucket? 1.0m3? 1250mm
09***08Pin,(Without Pin Puller)3
19***31Point,Short?(Yellow)3
20***10Bucket1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Rock Bucket? 1.4m3? 1350mm
09***36Pin4
20***42Adapter (Welded)4
20***43Adapter (Welded)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Self Supply Pump
07***20Hose1
07***59Clamp - Drain Hose2
20***30Wire1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Semi-Long Arm
01***90Bolt,For Reversible Fan4
01***32Washer,(Not Used With Emergency Str.)4
01***32Washer, (Without Emergency Steering)16
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Short Arm (2400mm)
01***12Bolt, Bolt,(No Need To Quick Shift)2
01***19Washer,Spring (With Extinguisher) (D31p)2
07***00Fitting, Grease - Upper Hinge Pin2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Slope Finishing Bucket
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Trapezoidal Bucket
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Trenching Bucket? 1.2m3? 1200mm
01***95Bolt10
09***36Pin4
19***21Nut? Shoe (Kit)10
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Trenching Bucket? 1.4m3? 1325mm
01***95Bolt10
09***36Pin4
19***21Nut? Shoe (Kit)10
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Trenching Bucket? 1.4m3? 1325mm? With Hook (Except Japan)
01***95Bolt10
09***36Pin4
19***21Nut? Shoe (Kit)10
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Vandalism Protection
07***00Cap,(For Vandalism Protection)1
07***00Cap, Locking - Hydraulic Tank Oil Filler Cap1
20***20Cover (Welded)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Window Washer
01***16Bolt, Mount Washer Tank To Bracket, Bolt2
01***12Screw,(Additional Sun Visor)2
01***13Washer,Spring(For Wiper Switch Earth)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts : Window Washer (For Wrist Control) (Except Japan)
01***16Bolt, Mount Washer Tank To Bracket, Bolt2
01***12Screw,(Additional Sun Visor)2
01***13Washer,Spring(For Wiper Switch Earth)2
See all parts with full part numbers in Heavy Parts AI →
Optional Parts (Special Application Parts)
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Additional Piping? Attachment Side (1/2)
01***25Bolt,(Without Rops Guard? Canopy)8
01***85Bolt, Mount Tubes To Switch And Work Pumps12
01***90Bolt,(Without Giant Ripper)8
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Additional Piping? Change Rotor And Swivel Joint
01***30Bolt,(Not Used With Emergency Str.)9
01***05Bolt, Mount Tube8
01***32Washer,(Not Used With Emergency Str.)17
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Additional Piping? Control Valve To Change Rotor Block
01***70Bolt, Accumulator Mounting Bracket1
01***95Bolt4
01***11Nut,(With Under Mirror)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Additional Piping? Pilot Line
01***80Bolt,(For Long Lever Control)3
01***06Seat (Welded)1
01***23Washer,(For Shipping)3
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Additionel Piping? Attachment Side (2/2)
01***30Bolt,(Not Used With Emergency Str.)2
01***85Bolt, Mount Tubes To Switch And Work Pumps8
01***35Bolt, Hydraulic Tank Mounting8
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Cab Guard? For Additional Piping
01***25Bolt,(Without Rops Guard? Canopy)8
01***35Bolt4
01***09Seat,(Welded To Revolving Frame)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Check Valve (For U.S.A.)(#10363-)
07***22O-Ring,Lubricating Oil Pipe1
07***22Ring, Back-Up2
07***34O-Ring, At Transmission Filter1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Coloring Window Glass (For U.S.A.)
20***80Proof,Dust2
20***10Sash1
20***20Lock Ass'Y2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Control Pedal And Linkage? For Additional Piping (1/2)
01***16Bolt (With Air Heater & Conditioner)1
01***25Bolt,Without Revolution Sensor1
01***60Capscrew2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Control Pedal And Linkage? For Additional Piping (2/2)
01***16Bolt (With Air Heater & Conditioner)1
01***35Bolt, Bolt, Mount Tubes To Switch And Work Pumps1
01***08Nut,(For Straight Tilt Dozer) (D65p)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Control Valve L.H.(For Left Travel?Arm And Boom High)(For U.(#10124-)
01***20Bolt, Mount Spool Covers10
01***25Bolt2
01***16Bolt1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Control Valve R.H.(For Right Travel?Bucket And Boom)(For Bac(#10124-)
01***20Bolt, Mount Spool Covers10
01***25Bolt2
01***16Bolt1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Cylinder (For Mechanical Hand)
07***15O-Ring,(Y1621-01a0-10)1
07***00Fitting, Grease (Steering Cylinder)1
07***08Plug,(Without Oil Pressure Switch)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Defroster (For U.S.A.)
01***35Bolt, Bolt, Mount Tubes To Switch And Work Pumps3
01***03Nut,(With Joy Stick Steering)3
01***32Washer,(Not Used With Emergency Str.)3
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Electrical System (1/2) (For Mechanical Hand)
01***20Bolt,(Without Rops Guard? Canopy)2
01***15Bolt4
01***08Washer,(For 1 Attachment And Pat)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Electrical System (2/2) (For Mechanical Hand)
01***20Bolt,(Without Rops Guard? Canopy)1
01***15Bolt4
01***15Bolt6
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Hydraulic Oil Piping (For Mechanical Hand)
01***20Bolt,(For Quick Shift) (Mitsubishi)4
01***45Bolt, Mounting Bracket To Radiator (Top)8
01***90Bolt6
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Hydraulic Oil Piping?Attachment Side (For Mechanical Hand)
01***25Bolt,(Without Rops Guard? Canopy)12
01***30Bolt,(Not Used With Emergency Str.)2
01***70Bolt, Accumulator Mounting Bracket4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Machinery Compartment (T.B.G. Spec.)
01***25Bolt,(Without Rops Guard? Canopy)6
01***08Screw, Terminal4
01***25Bolt,See Fig. K4010-65a04
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Marks And Plates (For U.S.A.)
01***08Screw4
09***43Plate? Name,(Limited Supply)1
15***60Seat,Non Slip (Large)10
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Marks And Plates? Operator'S Cab (For U.S.A.)
20***90Plate? Caution,Maximum Height? Reach(For Usa)1
20***50Plate,Capacity1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Mechanical Hand (1/5)
01***20Bolt,(For Quick Shift) (Mitsubishi)6
01***50Bolt,(With Service Valve R.H.)5
01***30Bolt,(Not Used With Emergency Str.)8
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Mechanical Hand (2/5)
01***25Bolt,(For Canvas Canopy?Head Guard)2
01***25Bolt,(Without Rops Guard? Canopy)28
01***30Bolt,(Not Used With Emergency Str.)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Mechanical Hand (3/5)
01***25Bolt,(For Canvas Canopy?Head Guard)6
01***50Bolt,(With Service Valve R.H.)4
01***60Bolt, Mount Tube To Switch Pump4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Mechanical Hand (4/5)
01***55Bolt,(For Reinforced Type)4
01***20Screw8
01***75Bolt8
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Mechanical Hand (5/5)
01***25Bolt,(Without Rops Guard? Canopy)5
01***32Washer,(Not Used With Emergency Str.)5
07***34O-Ring,(For 2-Actuater Attachment)12
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Operator'S Cab (T.B.G. Spec.)
01***16Bolt (With Air Heater & Conditioner)4
01***20Bolt,(With Auto Emergency Steering)2
01***10Screw,(For Lighter)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Over Load Warning Device (2/2) (T.B.G. Spec.) : Unit_01_of_02
01***25Bolt,(Without Rops Guard? Canopy)2
01***35Bolt,R.H. Outside And L.H. Inside4
01***12Screw,(With Articulate Indicator)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Over Load Warning Device (2/2) (T.B.G. Spec.) : Unit_02_of_02
01***60Bolt,(For Japan And Sweden)4
01***23Washer, Wiring Harness Mounting Bracket4
01***32Washer, (Without Emergency Steering)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : P.O.C.Piping? P.O.C. Valve To Check Valve (For U.S.A.)
01***25Bolt,Without Revolution Sensor8
01***20Bolt,(For Quick Shift) (Mitsubishi)8
01***25Bolt,(For Canvas Canopy?Head Guard)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : P.O.C.Piping? P.O.C. Valve To Control Valve (For U.S.A.)
07***23O-Ring,(Crusher?Other Att.For Ppc Con12
07***23O-Ring,(For 2nd Travel Speed) (Op)12
07***08Plug,See Fig. K4010-63a04
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Revolving Frame (T.B.G. Spec.)
01***25Bolt,Without Revolution Sensor4
01***25Bolt,(Without Rops Guard? Canopy)2
01***08Screw, Terminal1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Selector Valve Control Linkage (For U.S.A.)
01***20Bolt,(For Quick Shift) (Mitsubishi)4
01***50Bolt,(With Service Valve R.H.)4
01***08Nut,(For Straight Tilt Dozer) (D65p)6
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Swing Hold Brake Piping (For U.S.A.)
01***25Bolt,(Without Rops Guard? Canopy)2
01***55Bolt,(For Reinforced Type)4
01***35Screw8
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Swing Hold Brake Switch (For U.S.A.)
01***25Screw - Antenna Mounting2
01***06Nut1
01***10Washer,Spring (For Engine Room Lamp)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Swing Motor (For U.S.A.)(#10124-10362)
01***42Washer,Spring (For Pedal Steering), Washer-Spring8
07***55O-Ring,Front Accessory Drive2
07***35O-Ring, Upper Cooler Inlet And Outlet Ports4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Swing Motor (For U.S.A.)(#10363-)
01***55Bolt,(Not Used For Chip Dozer)8
01***45Bolt8
01***42Washer,Spring (For Pedal Steering), Washer-Spring8
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Swing Motor Parking Brake (For U.S.A.)(#10124-)
01***55Bolt,(Not Used For Chip Dozer)8
01***48Washer,Spring (For Slag Handling), Washer-Spring8
01***12Washer2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Swivel Joint (For Mechanical Hand)
01***30Bolt,(For Quick Shift) (Mitsubishi)4
01***30Bolt,(Not Used With Emergency Str.)4
01***30Washer, Spring (Supplied W/Spider Assembly), Washer-Spring4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Travel Circuit Connecting Valve (For U.S.A.)
01***25Bolt,Without Revolution Sensor4
01***50Bolt (Kit)4
01***25Washer,Spring?For Additional Rear Lam8
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Optional Parts (Special Application Parts) : Travel Piping (For U.S.A.)
01***25Bolt,(For Canvas Canopy?Head Guard)4
01***80Bolt,(Not Shown)4
01***80Bolt16
See all parts with full part numbers in Heavy Parts AI →
Revolving Frame And Cab
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Heater
01***20Bolt,(Without Rops Guard? Canopy)6
01***25Bolt,(Without Rops Guard? Canopy)2
01***32Washer,(Not Used With Emergency Str.)8
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Machinery Compartment (1/6)
01***16Bolt, Mount Washer Tank To Bracket, Bolt8
01***25Bolt,(For Canvas Canopy?Head Guard)2
01***30Bolt,(Not Used With Emergency Str.)9
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Machinery Compartment (2/6)(#10124-10229)
01***20Bolt,(For Quick Shift) (Mitsubishi)2
01***25Bolt,(For Canvas Canopy?Head Guard)7
01***25Bolt,(Without Rops Guard? Canopy)18
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Machinery Compartment (2/6)(#10230-)
01***20Bolt,(For Quick Shift) (Mitsubishi)2
01***25Bolt,(For Canvas Canopy?Head Guard)7
01***25Bolt,(Without Rops Guard? Canopy)18
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Machinery Compartment (3/6)
01***30Bolt,(Not Used With Emergency Str.)27
01***32Washer,(Not Used With Emergency Str.)27
20***50Hinge (Welded)3
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Machinery Compartment (4/6)
01***20Bolt,(For Quick Shift) (Mitsubishi)4
01***25Bolt,(Without Rops Guard? Canopy)3
01***30Bolt,(Not Used With Emergency Str.)8
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Machinery Compartment (5/6)
01***25Bolt,(Without Rops Guard? Canopy)19
01***30Bolt,(Not Used With Emergency Str.)14
01***32Washer,(Not Used With Emergency Str.)33
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Machinery Compartment (6/6)
01***20Bolt,(With Auto Emergency Steering)16
01***25Bolt,(Without Rops Guard? Canopy)2
01***30Bolt,(Not Used With Emergency Str.)12
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Marks And Plates (English)
01***08Screw4
08***35Indicator,Dust (Japanese-English)1
09***00Plate? Safety,Lock Lever (With Lock Pin)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Marks And Plates (English) (For Wrist Control)
01***08Screw4
08***35Indicator,Dust (Japanese-English)1
09***00Plate? Safety,Lock Lever (With Lock Pin)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Marks And Plates (German) (For Wrist Control)
01***08Screw4
08***35Indicator,Dust (English-German)1
09***00Plate? Safety,Swing Lock Lever1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Operator'S Cab (1/6)
01***12Bolt, Bolt,(No Need To Quick Shift)6
01***20Bolt,(With Auto Emergency Steering)2
01***30Bolt,(For Quick Shift) (Mitsubishi)14
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Operator'S Cab (2/6)
01***16Screw, Mount Parking Lights2
01***20Screw3
01***13Washer,Spring(For Wiper Switch Earth)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Operator'S Cab (3/6)
01***20Bolt,(With Auto Emergency Steering)10
01***12Screw,(Additional Sun Visor)2
01***25Screw4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Operator'S Cab (4/6)
01***08Screw, Terminal2
01***08Screw6
01***12Screw,(Not Shown) (For Std Cab)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Operator'S Cab (5/6)
01***20Bolt,(With Auto Emergency Steering)10
01***12Screw,(For Side Lamp) (Not Shown)3
01***12Screw,(With Articulate Indicator)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Operator'S Cab (6/6)
01***16Screw,(P.O.C. Model) (Except Japan)6
01***25Screw2
01***12Screw3
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Operator'S Cab Frame
01***25Bolt,Without Revolution Sensor2
01***30Bolt,(For Quick Shift) (Mitsubishi)10
01***75Bolt6
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Operator'S Cab Frame (For Wrist Control) (Except Japan)
01***25Bolt,Without Revolution Sensor2
01***30Bolt,(For Quick Shift) (Mitsubishi)10
01***75Bolt6
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Operator'S Seat
01***20Bolt,(Large Capacity Type) (Std)5
01***30Bolt,Radio Controlled Slag Handling4
01***10Nut,(Dust?Drip Proof? Trimming S.)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Revolving Frame (For Backhoe)
01***25Bolt,(Without Rops Guard? Canopy)2
01***65Bolt,(With Canvas Or Rops Canopy)4
01***32Washer,(Not Used With Emergency Str.)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Revolving Frame (For Loader)
01***25Bolt,(Without Rops Guard? Canopy)2
01***65Bolt,(With Canvas Or Rops Canopy)4
01***32Washer,(Not Used With Emergency Str.)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Revolving Frame And Cab : Under Cover
01***30Bolt,(Not Used With Emergency Str.)56
01***32Washer,(Not Used With Emergency Str.)56
20***70Hinge (Welded)1
See all parts with full part numbers in Heavy Parts AI →
Swing And Control Systems
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Bottom Dump Control (1/2) (For Loader)
01***16Bolt (With Air Heater & Conditioner)2
01***20Bolt,(With Auto Emergency Steering)2
01***16Screw4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Bottom Dump Control (2/2) (For Loader)
01***20Bolt,(For Quick Shift) (Mitsubishi)4
01***30Screw4
01***13Washer,Spring(For Wiper Switch Earth)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : P.N.C. Piping (1/2)
01***25Bolt - Rear Guard Mounting1
01***30Bolt,Radio Controlled Slag Handling2
01***32Washer,(Not Used With Emergency Str.)3
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : P.N.C. Piping (2/2)
01***25Bolt,(Sandy? Dusty Terrain Spec.)1
01***45Bolt, Mounting Bracket To Radiator (Top)2
01***32Washer,(With Auto Emergency Steering)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : P.O.C. Valve
01***20Bolt,(With Auto Emergency Steering)10
01***06Nut, Regular Hexagon (M8-1.25)2
01***25Washer,Spring?For Additional Rear Lam10
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : P.O.C. Valve Piping (1/4)
01***40Bolt,(With Air Conditioner)2
01***55Bolt,(10m)2
01***30Bolt,(For Quick Shift) (Mitsubishi)3
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : P.O.C. Valve Piping (1/4) (For Wrist Control) (Except Japan)
01***40Bolt,(With Air Conditioner)2
01***55Bolt,(10m)2
01***30Bolt,(For Quick Shift) (Mitsubishi)3
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : P.O.C. Valve Piping (2/4)
01***25Bolt - Rear Guard Mounting1
01***25Bolt,(Without Rops Guard? Canopy)4
01***35Bolt, Bolt, Mount Tubes To Switch And Work Pumps1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : P.O.C. Valve Piping (2/4) (For Wrist Control) (Except Japan)
01***25Bolt,(Without Rops Guard? Canopy)4
01***35Bolt, Bolt, Mount Tubes To Switch And Work Pumps1
01***40Bolt,(With Service Valve R.H.)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : P.O.C. Valve Piping (3/4)
01***25Bolt,(For Canvas Canopy?Head Guard)4
01***32Washer,(With Auto Emergency Steering)4
07***23O-Ring,(Crusher?Other Att.For Ppc Con19
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : P.O.C. Valve Piping (3/4) (For Wrist Control) (Except Japan)
01***25Bolt,Without Revolution Sensor8
01***20Bolt,(For Quick Shift) (Mitsubishi)8
01***25Bolt,(For Canvas Canopy?Head Guard)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : P.O.C. Valve Piping (4/4) (For Wrist Control) (Except Japan)
01***35Bolt,(For Position Fixing)4
01***55Bolt,(10m)2
01***80Bolt,(For Long Lever Control)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : P.O.C. Valve Piping (4/4)(#10124-10362)
01***35Bolt,(For Position Fixing)4
01***55Bolt,(10m)2
01***80Bolt,(For Long Lever Control)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : P.O.C. Valve Piping (4/4)(#10363-)
01***35Bolt,(For Position Fixing)4
01***55Bolt,(10m)2
01***80Bolt,(For Long Lever Control)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : P.O.C. Valve Piping (For Bottom Dump) (For Loader)
01***35Bolt,(For Position Fixing)8
01***55Bolt,(10m)2
01***80Bolt,(For Long Lever Control)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Relief Valve
01***05Nut (Welded)1
07***32O-Ring,Drain Plug? Main Clutch1
07***15O-Ring,Regulator Valve1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Shuttle Valve (For Bottom Dump) (For Backhoe)
01***18Bolt4
01***20Bolt4
01***19Washer,Spring (With Extinguisher) (D31p)8
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Swing Circle
01***60Washer,(Without Rops Guard? Canopy)72
04***42Pin,Dowel? Gear Case Cover3
07***00Fitting, Grease - Upper Hinge Pin4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Swing Machinery (1/2)
01***30Bolt,(Not Used With Emergency Str.)3
01***50Bolt,(For Tbg/Abe Spec.)16
01***55Bolt,(For Reinforced Type)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Swing Machinery (2/2)
01***30Bolt,(Not Used With Emergency Str.)4
01***50Bolt,(For Tbg/Abe Spec.)12
01***70Bolt,Leaning Lock1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Swing Motor (Except Japan)(#10124-10156)
01***55Bolt8
01***42Washer,Spring (For Pedal Steering), Washer-Spring8
07***55O-Ring,Front Accessory Drive1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Swing Motor (Except Japan)(#10157-10362)
01***42Washer,Spring (For Pedal Steering), Washer-Spring8
07***55O-Ring,Front Accessory Drive2
07***35O-Ring, Upper Cooler Inlet And Outlet Ports4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Swing Motor (Except Japan)(#10363-)
01***55Bolt8
01***42Washer,Spring (For Pedal Steering), Washer-Spring8
07***55O-Ring,Front Accessory Drive1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Swing Motor Brake Valve(#10124-10362)
01***25Bolt,Without Revolution Sensor4
01***70Bolt,(With Wear Guard)8
01***25Washer,Spring?For Additional Rear Lam4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Swing Motor Brake Valve(#10363-)
07***22O-Ring,Lubricating Oil Pipe1
07***22Ring, Back-Up2
07***34O-Ring, At Transmission Filter1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Swing Motor Shock-Less Valve(#10124-10156)
07***16O-Ring,Suction And Relief Valve2
07***25O-Ring,(See Fig. H0311-01a0-30)1
07***16Ring, Back-Up4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Swing Motor Shock-Less Valve(#10157-)
07***05O-Ring (Kit)1
07***09O-Ring,(F4350-61a0 -33 )1
07***16O-Ring,Suction And Relief Valve2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Valve Control Lever And Linkage (1/2)
01***40Bolt,(With Air Conditioner)4
01***08Nut,(For Straight Tilt Dozer) (D65p)2
01***25Washer,Spring?For Additional Rear Lam4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Valve Control Lever And Linkage (2/2)
01***20Bolt,(For Quick Shift) (Mitsubishi)8
01***30Bolt,(For Quick Shift) (Mitsubishi)8
01***30Bolt,(Not Used With Emergency Str.)6
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Valve Control Lever And Linkage? L.H. (F.W.C.)(Except Japan)
01***40Bolt2
01***30Bolt,(Not Used With Emergency Str.)3
01***08Nut,(For Straight Tilt Dozer) (D65p)5
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Valve Control Lever And Linkage? R.H. (1/2) (F.W.C.) (E.J.)
01***40Bolt2
01***30Bolt,(Not Used With Emergency Str.)4
01***23Plain Washer1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Valve Control Lever And Linkage? R.H. (2/2) (F.W.C.) (E.J.)
01***20Bolt,(With Auto Emergency Steering)1
01***08Nut,(For Straight Tilt Dozer) (D65p)10
01***16Washer,Radio Controlled Slag Handling2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Valve To/From Swing Motor Piping(#10124-10156)
01***70Bolt, Mount Bracket And Oil Inlet Tube, Bolt8
01***70Bolt, Accumulator Mounting Bracket1
01***11Nut,(With Under Mirror)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Valve To/From Swing Motor Piping(#10157-10362)
01***70Bolt, Accumulator Mounting Bracket1
01***11Nut,(With Under Mirror)4
01***32Washer,(With Auto Emergency Steering)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Swing And Control Systems : Valve To/From Swing Motor Piping(#10363-)
01***70Bolt, Accumulator Mounting Bracket1
01***11Nut,(With Under Mirror)4
01***32Washer,(With Auto Emergency Steering)4
See all parts with full part numbers in Heavy Parts AI →
Tool And Kit
Komatsu : Pc400lc-1(S/N 10001-Up) : Tool And Kit : Tool
07***00Pump,Grease1
07***50Pump, (Bellows Type)1
07***00Cartridge,Grease1
See all parts with full part numbers in Heavy Parts AI →
Travel And Final Drive
Komatsu : Pc400lc-1(S/N 10001-Up) : Travel And Final Drive : Final Drive Case
01***55Bolt,(For Reinforced Type)3
01***60Bolt,Reamer32
01***16Nut32
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Travel And Final Drive : Final Drive Case And Sprocket
01***45Bolt,(For Travel Motor) (Not Show)22
01***70Bolt,(For Rops)40
01***95Bolt14
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Travel And Final Drive : Motor Drain Piping(#10124-10362)
01***20Bolt,(Without Rops Guard? Canopy)4
01***30Bolt,(Not Used With Emergency Str.)4
01***09Nut,(With Body Positioner)10
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Travel And Final Drive : Motor Drain Piping(#10363-)
01***20Bolt,(Without Rops Guard? Canopy)4
01***30Bolt,(Not Used With Emergency Str.)4
01***09Nut,(With Body Positioner)10
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Travel And Final Drive : Propel Motor Brake Valve (1/2)
01***25Bolt,Without Revolution Sensor2
01***50Bolt (Kit)2
01***25Washer,Spring?For Additional Rear Lam4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Travel And Final Drive : Propel Motor Brake Valve (2/2)
Komatsu : Pc400lc-1(S/N 10001-Up) : Travel And Final Drive : Swivel Joint
01***25Bolt,(Sandy? Dusty Terrain Spec.)6
01***30Washer,Spring(Sandy?Dusty Terrain S.)4
04***50Ring, Snap (2)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Travel And Final Drive : Swivel Joint To/From Travel Motor Piping
01***35Bolt,(For Position Fixing)8
01***45Bolt,(For Power Tilt Mech Angle)4
01***70Bolt, Mount Bracket And Oil Inlet Tube, Bolt16
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Travel And Final Drive : Travel Control Lever And Linkage
01***16Bolt (With Air Heater & Conditioner)1
01***30Bolt,(For Quick Shift) (Mitsubishi)4
01***25Screw2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Travel And Final Drive : Travel Control Lever And Linkage (1/2) (E.J.)(#10124-10385)
01***16Bolt (With Air Heater & Conditioner)1
01***35Bolt, Bolt, Mount Tubes To Switch And Work Pumps4
01***08Nut,(For Straight Tilt Dozer) (D65p)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Travel And Final Drive : Travel Control Lever And Linkage (1/2) (E.J.)(#10386-)
01***16Bolt (With Air Heater & Conditioner)1
01***35Bolt, Bolt, Mount Tubes To Switch And Work Pumps4
01***08Nut,(For Straight Tilt Dozer) (D65p)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Travel And Final Drive : Travel Control Lever And Linkage (2/2) (Except Japan)
01***16Bolt (With Air Heater & Conditioner)1
01***25Bolt,(For Canvas Canopy?Head Guard)4
01***08Nut,(For Straight Tilt Dozer) (D65p)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Travel And Final Drive : Travel Motor (Except Japan)
07***34O-Ring,(Not Used When (B) Spec.)1
07***12Plug,(For Without Brake Assistor)1
70***00Motor Ass'Y,(Kmf160a)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Travel And Final Drive : Travel Motor Parking Brake
01***55Bolt,(Not Used For Chip Dozer)8
01***48Washer,Spring (For Slag Handling), Washer-Spring8
01***12Washer2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Travel And Final Drive : Valve To/From Swivel Joint Piping
01***25Bolt,(Without Rops Guard? Canopy)4
01***70Bolt, Accumulator Mounting Bracket2
01***30Washer, Spring (Supplied W/Spider Assembly), Washer-Spring48
See all parts with full part numbers in Heavy Parts AI →
Under Carriage
Komatsu : Pc400lc-1(S/N 10001-Up) : Under Carriage : Carrier Roller
01***30Bolt,(For France Noise Suppression)4
01***75Bolt, Hanger Bearing Mounting8
01***30Washer,Spring(Sandy?Dusty Terrain S.)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Under Carriage : Front Idler(#10124-10190)
Komatsu : Pc400lc-1(S/N 10001-Up) : Under Carriage : Front Idler(#10191-)
01***13Nut,Plate (Welded)2
01***45Washer,(For Travel Motor) (Not Show)2
07***90O-Ring,(Dk029369-0020) (K2)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Under Carriage : Recoil Spring
01***20Bolt,(Without Rops Guard? Canopy)4
01***30Bolt,(For Rubber Shoe)4
01***05Bolt16
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Under Carriage : Track Frame
01***25Bolt,(Without Rops Guard? Canopy)14
01***40Bolt,(With Center Guard)16
01***45Bolt,(For Travel Motor) (Not Show)22
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Under Carriage : Track Roller(#10124-10372)
01***00Bolt72
01***60Washer,Single Flange (Trimming)72
04***16Pin,(Dowel)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Under Carriage : Track Roller(#10373-)
01***00Bolt72
01***60Washer,Single Flange (Trimming)72
04***16Pin,(Dowel)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Under Carriage : Track Shoe
15***28Link,Track? L.H104
15***38Link,Track? R.H104
15***60Seal,Dust? Master? W-Type8
See all parts with full part numbers in Heavy Parts AI →
Work Equipment
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment : Arm (For Backhoe)
01***45Bolt8
01***60Flat Washer - M20 (Hardened)8
07***00Fitting, Grease (Steering Cylinder)3
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment : Arm (For Loader)
01***40Bolt,(With Center Guard)2
01***45Washer,(For Travel Motor) (Not Show)2
07***10O-Ring - Strainer Cover2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment : Boom (For Backhoe)
01***12Bolt, Bolt,(No Need To Quick Shift)4
01***45Bolt,(For Travel Motor) (Not Show)8
01***40Bolt2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment : Boom (For Loader)
01***40Bolt,(With Service Valve R.H.)16
01***40Bolt,(With Center Guard)10
01***45Bolt,(For Travel Motor) (Not Show)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment : Bucket (For Loader)
01***20Bolt,(For Quick Shift) (Mitsubishi)13
01***40Bolt,(With Center Guard)8
01***45Bolt8
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment : Bucket? 1.6m3? 1630mm (For Backhoe)
01***95Bolt10
09***36Pin5
19***21Nut? Shoe (Kit)10
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment : Link (For Backhoe)
01***19Nut - M248
07***00Fitting, Grease - Upper Hinge Pin1
07***75Fitting,Grease (Without Lub. Piping)3
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment : Link (For Loader)
01***40Bolt,(With Service Valve R.H.)32
01***32Washer,(Not Used With Emergency Str.)32
07***00O-Ring,(F4350-65a1 -5 )4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment : Work Equipment Lubrication (1/2) (For Loader)
01***12Bolt, Bolt,(No Need To Quick Shift)22
01***19Washer,Spring (With Extinguisher) (D31p)22
07***00Fitting, Grease - Upper Hinge Pin10
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment : Work Equipment Lubrication (2/2) (For Loader)
01***12Bolt, Bolt,(No Need To Quick Shift)12
01***19Washer,Spring (With Extinguisher) (D31p)12
07***00Fitting, Grease - Upper Hinge Pin14
See all parts with full part numbers in Heavy Parts AI →
Work Equipment Control System
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Air System (1/2)
01***25Bolt,Without Revolution Sensor2
01***25Bolt,(Without Rops Guard? Canopy)4
01***14Nut4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Air System (2/2)
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Arm And Bucket Piping (Chassis Side)
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Arm Cylinder (For Backhoe)(#10124-10314)
01***20Bolt,(For Quick Shift) (Mitsubishi)2
01***70Bolt, Mount Bracket And Oil Inlet Tube, Bolt4
01***80Bolt,(For 100kg)6
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Arm Cylinder (For Backhoe)(#10315-)
01***20Bolt,(For Quick Shift) (Mitsubishi)2
01***70Bolt, Mount Bracket And Oil Inlet Tube, Bolt4
01***00Bolt, Mount Back-Up Alarm4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Arm Cylinder (For Loader)
01***20Bolt,(For Quick Shift) (Mitsubishi)2
01***60Bolt, Tube To Oil Cooler4
01***00Bolt, Mount Back-Up Alarm4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Arm Cylinder Piping (Chassis Side9 (For Loader)
01***35Bolt,(For Quick Shift) (Mitsubishi)16
01***85Bolt,(For 2nd Travel Speed) (Op)10
01***50Bolt,(For Strengthened Cover)11
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Arm High Control Valve
01***20Bolt, Mount Spool Covers4
01***65Screw4
01***30Washer, Spring (Supplied W/Spider Assembly), Washer-Spring4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Boom Cylinder (For Backhoe)
01***25Bolt,(For Canvas Canopy?Head Guard)2
01***55Bolt, Mount Tube To Switch Pump4
01***60Bolt, Mount Tube To Switch Pump4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Boom Cylinder (For Loader)
01***25Bolt,(For Canvas Canopy?Head Guard)4
01***55Bolt, Mount Tube To Switch Pump4
01***60Bolt, Mount Tube To Switch Pump4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Boom Cylinder Piping (Chassis Side) (For Loader)
01***32Washer, (Without Emergency Steering)32
07***32O-Ring,(See Fig. H0312-01a0-4)8
07***16Hose4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Boom Piping (Chassis Side) (1/2)
01***95Bolt,(For 2nd Travel Speed) (Op)8
01***32Washer, (Without Emergency Steering)14
07***32O-Ring,(See Fig. H0312-01a0-4)6
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Boom Piping (Chassis Side) (2/2)(#10124-10314)
01***25Bolt,(Without Rops Guard? Canopy)4
01***30Bolt,(Not Used With Emergency Str.)4
01***65Bolt, Mount Radiator To Frame (Bottom)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Boom Piping (Chassis Side) (2/2)(#10315-)
01***25Bolt,(Without Rops Guard? Canopy)4
01***30Bolt,(Not Used With Emergency Str.)4
01***50Bolt,(For Strengthened Cover)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Boom?Arm And Bucket Cylinder Piping (For Backhoe)
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Bottom Dump Cylinder (For Loader)
01***20Bolt,(For Quick Shift) (Mitsubishi)2
01***55Bolt, Mount Tube To Switch Pump4
01***60Bolt, Mount Tube To Switch Pump4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Bottom Dump Piping (1/2) (For Loader)
01***85Bolt,(For 2nd Travel Speed) (Op)2
01***30Bolt,(Not Used With Emergency Str.)8
01***50Bolt,(For Strengthened Cover)7
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Bottom Dump Piping (2/2) (For Loader)
01***30Bolt,(For Quick Shift) (Mitsubishi)4
01***55Bolt, Mount Tube To Switch Pump4
01***60Bolt, Mount Tube To Switch Pump4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Bottom Dump Piping (Chassis Side) (For Loader)
01***55Bolt, Mount Tube To Switch Pump2
01***60Bolt, Mount Tube To Switch Pump2
01***70Bolt, Accumulator Mounting Bracket3
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Bucket Cylinder (For Backhoe)
01***20Bolt,(For Quick Shift) (Mitsubishi)4
01***55Bolt, Mount Tube To Switch Pump4
01***60Bolt, Mount Tube To Switch Pump4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Bucket Cylinder (For Loader)
01***25Bolt,(For Canvas Canopy?Head Guard)2
01***55Bolt, Mount Tube To Switch Pump2
01***60Bolt, Mount Tube To Switch Pump2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Bucket Cylinder Piping (For Loader)
01***55Bolt, Mount Tube To Switch Pump4
01***60Bolt, Mount Tube To Switch Pump4
01***85Bolt,(For 2nd Travel Speed) (Op)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Control Valve? L.H. (For L.H. Travel? Arm And Boom High)
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Control Valve? R.H. (For R.H. Travel? Bucket And Boom)
01***25Bolt,(For Canvas Canopy?Head Guard)4
01***20Bolt, Mount Spool Covers10
01***25Bolt2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Control Valve?R.H. (For Right Travel? Bucket? B.A.B.D.)
01***20Bolt, Mount Spool Covers14
01***25Bolt2
01***16Bolt1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Hydraulic Pump (1/3) (Except Japan)
01***35Bolt,(For Quick Shift) (Mitsubishi)8
01***90Bolt, Fan Mounting4
01***10Bolt, Fan Mounting4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Hydraulic Pump (2/3) (Except Japan)
01***35Bolt,(For Quick Shift) (Mitsubishi)8
01***10Bolt, Fan Mounting4
01***30Washer, Spring (Supplied W/Spider Assembly), Washer-Spring12
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Hydraulic Pump (3/3) (Except Japan)
70***02Hydraulic Pump Ass'Y2
70***02Hydraulic Pump Ass'Y2
70***50Boss1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Hydraulic Tank(#10124-10314)
01***20Bolt,(Large Capacity Type) (Std)2
01***25Bolt,(Sandy? Dusty Terrain Spec.)2
01***25Bolt - Rear Guard Mounting8
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Hydraulic Tank(#10315-)
01***20Bolt,(Large Capacity Type) (Std)2
01***25Bolt - Rear Guard Mounting8
01***30Bolt,Radio Controlled Slag Handling4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Jet Sensor
01***06Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-108061
07***14O-Ring,(F4350-63a1a-2 )1
07***16O-Ring1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Main Relief Valve
01***06Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-108061
07***16O-Ring1
07***16Ring, Back-Up1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Main Relief Valve (For Loader)
01***06Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-108061
07***16O-Ring1
07***16Ring, Back-Up1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : P.O.C Pump
04***18Ring, Retaining1
70***10Pump Ass'Y1
70***10Seal, Oil1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Pump To Valve Piping (1/2)(#10124-10229)
01***30Bolt,(For Quick Shift) (Mitsubishi)1
01***30Bolt,(Not Used With Emergency Str.)2
01***50Bolt,(For Strengthened Cover)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Pump To Valve Piping (1/2)(#10230-)
01***60Bolt1
01***30Bolt,(Not Used With Emergency Str.)2
01***50Bolt,(For Strengthened Cover)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Pump To Valve Piping (2/2)
01***65Bolt,(Except Japan)2
01***70Bolt, Mount Bracket And Oil Inlet Tube, Bolt2
01***80Bolt, Mount Tubes To Switch And Work Pumps15
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Return And Oil Cooler Piping (1/3)
01***25Bolt,(Without Rops Guard? Canopy)2
01***35Bolt, Bolt, Mount Tubes To Switch And Work Pumps2
01***30Screw4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Return And Oil Cooler Piping (2/3)(#10124-10308)
01***25Bolt - Rear Guard Mounting2
01***80Bolt, Mount Tubes To Switch And Work Pumps1
01***11Nut,(With Under Mirror)6
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Return And Oil Cooler Piping (2/3)(#10309-)
01***80Bolt, Mount Tubes To Switch And Work Pumps1
01***30Screw4
01***11Nut,(With Under Mirror)10
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Return And Oil Cooler Piping (3/3)
01***25Bolt,(Without Rops Guard? Canopy)2
01***30Bolt,(Not Used With Emergency Str.)2
01***35Bolt, Bolt, Mount Tubes To Switch And Work Pumps2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Servo Cylinder (1/4)
01***80Bolt4
01***25Washer,Spring?For Additional Rear Lam4
07***09O-Ring,(F4350-61a0 -33 )3
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Servo Cylinder (2/4)
01***35Bolt,(For Position Fixing)4
01***40Bolt,(With Air Conditioner)4
01***25Washer,Spring?For Additional Rear Lam4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Servo Cylinder (3/4)
07***23O-Ring,(F4320-61a0 -29 )2
07***23O-Ring,(Crusher?Other Att.For Ppc Con1
07***07Plug,Housing No.2?3?4?5?62
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Servo Cylinder (4/4)
70***10Piston1
70***01C.O. Valve Ass'Y1
(7***1)Hydraulic Pump Ass'Y2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Suction And Safety Valve
07***34O-Ring,Transmission And Steering Case1
07***34O-Ring,See Fig. K4010-65a01
70***00Valve Ass'Y,Suction And Safety? R.H3
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Suction And Safety Valve (1/2) (For Loader)
07***34O-Ring,Transmission And Steering Case1
07***34O-Ring,See Fig. K4010-65a01
70***00Valve Ass'Y,Suction And Safety? R.H5
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Suction And Safety Valve (2/2) (For Loader)
07***34O-Ring,Transmission And Steering Case1
07***34O-Ring,See Fig. K4010-65a01
70***70Spring1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Suction Valve
07***34O-Ring,Transmission And Steering Case1
07***34O-Ring,(F2310-59a0 -4 )1
70***70Spring1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Suction Valve (For Loader)
07***34O-Ring,Transmission And Steering Case1
07***34O-Ring,(F2310-59a0 -4 )1
70***70Spring1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Swing Control Valve? L.H.(#10124-10362)
01***20Bolt, Mount Spool Covers4
07***35O-Ring,(F4350-61a0 -32 )1
07***32O-Ring,(See Fig. H0312-01a0-4)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Swing Control Valve? L.H.(#10363-)
01***25Bolt,(For Canvas Canopy?Head Guard)1
01***20Bolt, Mount Spool Covers4
01***16Washer,Radio Controlled Slag Handling1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Swing Control Valve? R.H.(#10124-10362)
01***20Bolt, Mount Spool Covers4
07***35O-Ring,(F4350-61a0 -32 )1
07***32O-Ring,(See Fig. H0312-01a0-4)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Swing Control Valve? R.H.(#10363-)
01***25Bolt,(For Canvas Canopy?Head Guard)1
01***20Bolt, Mount Spool Covers4
01***16Washer,Radio Controlled Slag Handling1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : T.C.C Valve
07***23O-Ring,(F4320-61a0 -29 )3
07***07Plug,Housing No.2?3?4?5?63
70***00Tcc Valve Ass'Y1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Pc400lc-1(S/N 10001-Up) : Work Equipment Control System : Tank To Pump Piping
01***30Bolt,(For Quick Shift) (Mitsubishi)4
01***25Bolt,(Without Rops Guard? Canopy)2
01***30Bolt,(Not Used With Emergency Str.)10
See all parts with full part numbers in Heavy Parts AI →

PC400LC-1(S/N 10001-UP) serial number reference

The factory PIN or serial plate is riveted to the right-hand side of the cab on the lower frame, typically behind the front idler or beneath the operator window. To read the prefix, locate the first two characters at the start of the model designation ('PC' for crawler excavator). Cross-check the riveted plate against the serial number stamped directly into the chassis frame casting on the right-hand side.

PrefixIdentifies
PCPC400LC-1 (S/N 10001-UP)

Frequently asked questions

What engine is installed in the PC400LC-1?

The specific engine designation for the PC400LC-1 (S/N 10001-UP) is not explicitly listed in the provided documentation, though related series utilize Komatsu diesel engines such as the S6D125-1VV.

What is the operating weight of this machine?

The operating weight varies by configuration and serial range; for example, similar PC400LC-7 models are rated between 43,700 kg (96,359 lb) and 44,600 kg (98,343 lb).

What model replaced the PC400-1 series?

The PC400-1 was succeeded by subsequent generations including the PC4::400-3, PC400-5, and later emission-compliant models like the PC400-6.

What PC400LC-1(S/N 10001-UP) owners discuss

What are the common hydraulic symptoms when a Komatsu PC400 series machine experiences performance loss?
If all functions (boom, arm, bucket, swing, and travel) become slow simultaneously, the issue likely stems from a shared source such as low hydraulic oil levels, incorrect oil specification, clogged filters, or engine RPM issues. If only one specific function is slow, investigation should focus on circuit-specific components like cylinder leakage, control-valve spool operation, hose restrictions, or pilot control input.
How can I diagnose an engine that loses power specifically during heavy digging loads?
Check for basic restrictions in the air and fuel systems, including air-filter condition, fuel filters, fuel tank venting, and intake/charge-air hoses. If engine RPM drops heavily when hydraulics are engaged, the hydraulic system may be placing excessive load on the engine or the engine is failing to produce expected power.
What causes a Komatsu excavator to exhibit weak hydraulic performance specifically when the oil temperature rises?
As hydraulic oil warms and viscosity decreases, internal leakage that was not noticeable in cold oil may become apparent. Suspect components include hydraulic pump wear, main control valve leakage, hydraulic cylinder leakage, or travel/swing motor leakage.
What are the typical indicators of an electrical or sensor-related failure on this machine?
Because these machines rely heavily on electronic control systems, a single faulty sensor or unstable power supply can trigger multiple warning signals. Common symptoms include intermittent starting, dashboard failure, or random machine shutdowns.
What should be inspected if the excavator travels with a pull to one side or at uneven speeds?
First check mechanical conditions: track tension on both sides, debris or mud packed into the undercarriage, roller condition, and track-chain condition. If mechanical resistance is similar but one track remains consistently slower, investigate the travel motor, final drive, or travel control valve circuit.
What are the primary causes of engine overheating during heavy excavation work?
Inspect the radiator, hydraulic oil cooler, charge-air cooler, and air-conditioning condenser for debris. Material often becomes packed between stacked coolers even if the machine looks clean from the outside. Also verify coolant levels when cold and check fan operation.
What is the most critical item to check when purchasing a used Komatsu PC400 series excavator?
Verify the exact serial-prefix specification sheet and the installed attachment package. Variations in long sticks, wide track shoes, quick couplers, or regional emissions configurations can significantly change the machine's weight, reach, fuel use, and transport planning.

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

Need a specific PC400LC-1(S/N 10001-UP) part?

Search live OEM part data, check fitment, and cross-reference alternatives with Heavy Parts AI.