Komatsuhydraulic excavatormedium (pc100 - pc270)
Komatsu PC120-5M(S/N 36601-UP)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu PC120-5M (S/N 36601-UP) is a medium-sized hydraulic crawler excavator designed for versatile earthmoving, utility, and construction applications. Part of the PC120 series, this 'Mighty Spec' configuration features a Perkins 1004-4THR diesel engine and operates within a weight range of approximately 25,350 lb (11,499 kg) to 28,219 lb (12.8 t). The machine is engineered for high productivity in trenching and mass excavation tasks.
The PC120-5M represents a specific evolution within the PC120 lineage, distinguished by its unique serial range and 'Mighty' designation. In today's used equipment market, this series remains highly valued due to the availability of robust Perkins powerplants and standardized Komatsu hydraulic components. Its durability makes it a primary candidate for fleet expansion in secondary markets where reliability and parts interchangeability are critical.
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 PC120-5M(S/N 36601-UP) specifications
Engine
| Model | Perkins 10/4-4THR |
| Gross power | 84 hp (62 kW) |
| Displacement | 243 cu in (4 L) to 3.99 l |
| Cylinders | 4 |
| Bore × stroke | 3.94 × 5 in (100 × 127 mm) |
Weights
| Operating weight | 25,350 lb (11,498.6 kg) to 28,219 lb (12.8 t) |
| Ground pressure | 5.97 psi (41.17 kPa) |
Dimensions
| Transport length | 25.2 ft (7.69 m) to 25.23 ft (7.69 m) |
| Transport width | 8 ft (2.44 m) to 8.02 ft (2.445 m) |
| Transport height | 8.8 ft (2.69 m) to 8.83 ft (2.69 m) |
| Tail swing radius | 7.3 ft (2225 mm) |
| Track width | 23.6 in (600 mm) to 23.62 in (600 mm) |
| Ground clearance | 1.32 ft (400 mm) |
Performance
| Max digging depth | 16.41 ft (5000 mm) to 16.8 ft (5.12 m) |
| Max horizontal reach | 18.98 ft (5.785 m) to 19 ft (5.79 m) |
| Max cutting height | 24.78 ft (7550 mm) to 25.27 ft (7700 mm) |
| Swing speed | 12 rpm |
| Max travel speed | 2.24 mph (3.6 km/h) |
Forces
| Bucket digging force (tear-out force) | 17,198 lbf (76 kN) to 17,198 lbf (76.5 kN) |
Service capacities (summary)
| Fuel tank | 60.8 gal (230 L) |
| Hydraulic system fluid capacity | 38.4 gal (145 L) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
PC120-5M(S/N 36601-UP) fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | 11–12 liters | Refer to the operation and maintenance manual |
| Cooling system | Verify with your dealer | Refer to the operation and maintenance manual |
| Fuel tank | 60.8 gallons (230.17 liters) | Refer to the operation and maintenance manual |
| Hydraulic system total AND hydraulic tank | 38.4 gallons (145.35 liters) | Refer to the operation and maintenance manual |
| Grease (spec only) | Refer to the operation and maintenance manual |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Komatsu PC120-5M(S/N 36601-UP) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
Servicing the PC120-5M(S/N 36601-UP) beyond the schedule
Predictive Maintenance & Fluid Analysis
Regularly monitor hydraulic fluid clarity to detect early pump wear. Use Komatsu-spec fluids to maintain system pressure stability. Periodically sample engine oil for metal particulates that indicate bearing fatigue in the Perkins 1004-4THR. Monitor fuel water separator levels daily to prevent injector damage from contamination.
Corrective & Common Repairs
Address hydraulic pressure drops by inspecting relief valves and cylinder seals. If slow operation occurs after fluid reaches temperature, check for internal leakage in the main pump or control valves. Monitor track tension frequently; worn pins or bushings will cause excessive track slack and increased undercarriage wear.
Overhaul & Rebuild Points
Plan major engine overhauls when compression drops or oil consumption increases significantly. The 1004-4THR engine requires precise valve adjustments during rebuilds. For hydraulic systems, monitor swing mechanism performance; significant play in the swing gear indicates a need for reduction gear refurbishment or bearing replacement.
Seasonal & Environment Servicing
In dusty environments, increase frequency of air pre-cleaner cleaning and radiator inspections to prevent overheating. During cold operations, ensure hydraulic fluid viscosity is appropriate for startup temperatures. Check all grease points and pins for seasonal debris buildup that can accelerate structural wear on the boom and bucket.
PC120-5M(S/N 36601-UP) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 07281-00197 | Clamp,(With Pre-Fuel Filter) | Fuel system service | Check fitment → |
| 600-311-9100 | Fuel Filter Ass'Y | Fuel system service | Check fitment → |
| 09637-30161 | Plate? Instruction,Air Cleaner (Single Element) | Air intake service | Check fitment → |
| 09637-30661 | Plate? Instruction,Air Cleaner (Single Element) | Air intake service | Check fitment → |
| 09637-05661 | Plate? Instruction,Air Cleaner (Single Element) | Air intake service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
PC120-5M(S/N 36601-UP) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| CA115 | Engine crankshaft speed sensor failure | Broken sensor, wiring harness damage, or connector corrosion | Replace the speed sensor and verify voltage at the pin connector |
| CA122 | Intake air pressure high voltage | Faulty intake pressure sensor or wiring issue | Verify the intake pressure sensor and associated wiring |
| CA123 | Intake air pressure low voltage | Sensor short circuit or airflow restriction | Check for a sensor short or an airflow restriction in the intake system |
| CA144 | Coolant temperature sensor high error | Faulty coolant temperature sensor or circuit failure | Inspect the coolant temperature sensor and wiring |
| CA153 | Intake air temperature sensor high error | Faulty intake air temperature (IAT) sensor or circuit failure | Replace or test the IAT sensor |
| B@BCNS | Engine coolant overheating | Low coolant level, radiator blockage, or fan belt failure | Check radiator fins, fan belt, and coolant level |
| B@HANS | Hydraulic oil overheating | Contaminated hydraulic oil or clogged hydraulic filter | Change hydraulic oil and filter; inspect the cooler fan |
| AA10NX | Air cleaner clogging | Excessive dust or debris accumulation in the air filter | Replace the air filter element |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
PC120-5M(S/N 36601-UP) attachments & work tools
Buckets
Available in digging, ditching, and grading types. Widths range from 18 in (457.2 mm) to 72 in (1828.8 mm). Options include pin-on mounting or use with a quick coupler.
Hydraulic hammers
Compatible with hydraulic breaker attachments for demolition and breaking applications.
Quick couplers
Supports various quick-coupler systems for rapid attachment changes.
Thumbs/grapples
Available as hydraulic weld-on thumbs, mechanical thumbs, and mechanical grapples for material handling.
Rippers
Engineered ripper attachments are available for tackling compacted ground and frozen surfaces.
Hydraulic-kit notes
Specific hydraulic pressure or flow requirements for auxiliary tools require verification with the dealer.
All PC120-5M(S/N 36601-UP) assemblies by section
Every catalogued assembly group for the Komatsu PC120-5M(S/N 36601-UP). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Control System And Revolving Frame
Komatsu : Pc120-5m(S/N 36601-Up) : Control System And Revolving Frame : Counter Weight
| 01***08 | Screw | 1 |
| 01***80 | Washer,(For Shipping) | 4 |
| 07***45 | Plug | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Control System And Revolving Frame : Counter Weight (With Hook)
| 01***08 | Screw | 1 |
| 01***80 | Washer,(For Shipping) | 4 |
| 20***20 | Bolt | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Control System And Revolving Frame : Fuel Control Linkage
| 01***30 | Bolt,(For Mechanical Governor) | 1 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Control System And Revolving Frame : Hydraulic Piping (P.P.C Valve To/From Block)
| 01***25 | Bolt,Without Revolution Sensor | 8 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 8 |
Komatsu : Pc120-5m(S/N 36601-Up) : Control System And Revolving Frame : Hydraulic Piping (Work Equipment Control? R.H.)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 1 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 1 |
| 07***23 | O-Ring,(Crusher?Other Att.For Ppc Con | 4 |
Komatsu : Pc120-5m(S/N 36601-Up) : Control System And Revolving Frame : Hydraulic Piping(Work Equipment Control? L.H.)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 3 |
| 01***11 | Nut,(With Under Mirror) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Pc120-5m(S/N 36601-Up) : Control System And Revolving Frame : Revolving Frame
| 01***30 | Bolt,(Not Used With Emergency Str.) | 10 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 10 |
| 20***60 | Pin | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Control System And Revolving Frame : Travel Control Lever And Pedal
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 1 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
Komatsu : Pc120-5m(S/N 36601-Up) : Control System And Revolving Frame : Travel Control Linkage
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
| 01***32 | Washer,(With Auto Emergency Steering) | 3 |
| 04***15 | Pin,Cotter (Itl) | 4 |
Komatsu : Pc120-5m(S/N 36601-Up) : Control System And Revolving Frame : Work Equipment Control Lever : Unit_02_of_02
Komatsu : Pc120-5m(S/N 36601-Up) : Control System And Revolving Frame : Work Equipment Control Lever : Unit_01_of_02
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***20 | Screw - Turn Signal And Parkinglight Mounting | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
Engine Related Parts And Electrical System
Komatsu : Pc120-5m(S/N 36601-Up) : Engine Related Parts And Electrical System : Am Radio And Speaker
| 01***08 | Screw, Terminal | 4 |
| 01***12 | Screw,(Additional Sun Visor) | 4 |
| 01***10 | Washer,Spring (For Engine Room Lamp) | 4 |
Komatsu : Pc120-5m(S/N 36601-Up) : Engine Related Parts And Electrical System : Battery
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 08***00 | Terminal? (+),(10l) (Not Shown) | 2 |
| 08***01 | Terminal? (-),(20l) (Not Shown) | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Engine Related Parts And Electrical System : Corrosion Resister And Piping
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Engine Related Parts And Electrical System : Electrical System (Controller Bracket Side)
| 01***16 | Bolt (With Air Heater & Conditioner) | 6 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 3 |
Komatsu : Pc120-5m(S/N 36601-Up) : Engine Related Parts And Electrical System : Electrical System (Engine Rear Line)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 15 |
| 01***32 | Washer,(With Auto Emergency Steering) | 15 |
| 08***14 | Clip,(Without Cab) | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Engine Related Parts And Electrical System : Electrical System (Instrument Panel Line)(1/2)
| 01***12 | Bolt, Bolt,(No Need To Quick Shift) | 4 |
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 1 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Engine Related Parts And Electrical System : Electrical System (Instrument Panel Line)(2/2)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***16 | Screw,(For Joy Stick Steering) | 0 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
Komatsu : Pc120-5m(S/N 36601-Up) : Engine Related Parts And Electrical System : Electrical System (Work Lamp? Horn And Sensor Line)
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***25 | Bolt,Without Revolution Sensor | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Engine Related Parts And Electrical System : Engine Mounting Parts
| 01***20 | Bolt | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 8 |
Komatsu : Pc120-5m(S/N 36601-Up) : Engine Related Parts And Electrical System : Engine Related Parts
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 07***20 | Hose | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Engine Related Parts And Electrical System : Fuel Piping
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 5 |
| 01***32 | Washer,(With Auto Emergency Steering) | 5 |
| 07***97 | Clamp,(With Pre-Fuel Filter) | 4 |
Komatsu : Pc120-5m(S/N 36601-Up) : Engine Related Parts And Electrical System : Fuel Piping(Poor Fuel Spec.)(W.W/Separator&Add.Filter)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 11 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
Komatsu : Pc120-5m(S/N 36601-Up) : Engine Related Parts And Electrical System : Fuel Piping(Poor Fuel Spec.)(With Additional Filter)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Engine Related Parts And Electrical System : Fuel Piping(Poor Fuel Spec.)(With Water Separater)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 11 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Engine Related Parts And Electrical System : Fuel Tank
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***40 | Bolt,R.H. Outside And L.H. Inside, Bolt | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Engine Related Parts And Electrical System : Instrument Panel
| 01***10 | Screw | 2 |
| 01***10 | Washer,Spring (For Engine Room Lamp) | 2 |
| 08***00 | Switch,(Sandy And Dusty Terrain S.) | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Engine Related Parts And Electrical System : Lighter And Ashtray
| 08***00 | Lighter, Cigar - 24 V | 1 |
| 20***40 | Ashtray | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Engine Related Parts And Electrical System : Monitor System
| 08***03 | Bulb? 3w,Turn Signal Lamp | 2 |
| 78***01 | Panel,(For Japan) | 1 |
| 78***10 | Socket | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Engine Related Parts And Electrical System : Oil Cooler
| 01***20 | Bolt? Wing,(Noise Suppression Spec.) | 6 |
| 01***16 | Screw | 6 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Engine Related Parts And Electrical System : Power Take Off
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 11 |
| 01***40 | Bolt,(With Service Valve R.H.) | 6 |
| 01***32 | Washer,(With Auto Emergency Steering) | 11 |
Komatsu : Pc120-5m(S/N 36601-Up) : Engine Related Parts And Electrical System : Radiator And Piping
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 9 |
| 01***14 | Bolt | 4 |
Komatsu : Pc120-5m(S/N 36601-Up) : Engine Related Parts And Electrical System : Reserve Tank And Piping
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
| 07***95 | Tube | 1 |
Guard
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Car Cooler And Piping
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 9 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 4 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Car Heater And Piping
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***32 | Washer,(With Auto Emergency Steering) | 6 |
| 07***12 | Plug,(For Heater-Less) | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Compressor And Mounting
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***15 | Bolt,(With Air Conditioner Type) | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Electrical System (Wiper Motor Line)
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Floor Frame
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***75 | Bolt | 6 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Left Side Cover
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 15 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 12 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Left Side Cover (With Hole And For Dirt Protection)
| 01***20 | Bolt,(With Auto Emergency Steering) | 4 |
| 01***25 | Bolt,Without Revolution Sensor | 6 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 6 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Left Stand And Lever
| 01***20 | Bolt,(With Auto Emergency Steering) | 8 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***16 | Bolt | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Monitor Panel Bracket
| 01***20 | Bolt,(With Auto Emergency Steering) | 1 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 1 |
| 04***93 | Ball,Steel | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Multi Adjustable Seat
| 09***01 | Bolt,(For Shipping) | 3 |
| 09***02 | Washer,(For Shipping) | 3 |
| 09***03 | Nut,(For Shipping) | 3 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Operator'S Cab (1/7) (Cab)
| 01***25 | Bolt,Without Revolution Sensor | 8 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 1 |
| 01***60 | Bolt, Tube To Oil Cooler | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Operator'S Cab (1/7) (Cab) (For U.S.A. And Canada)
| 01***25 | Bolt,Without Revolution Sensor | 8 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 6 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Operator'S Cab (2/7) (Front Window)
| 01***12 | Screw,(For Side Lamp) (Not Shown) | 2 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Operator'S Cab (2/7) (Front Window) (For U.S.A. And Canada)
| 01***12 | Screw,(For Side Lamp) (Not Shown) | 2 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Operator'S Cab (3/7)(Front & R.H. Side Window)
| 01***30 | Screw | 2 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 2 |
| 08***10 | Grommet,(For Slag Handling) | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Operator'S Cab (4/7) (Side & Rear Window)
| 01***12 | Screw,(For Side Lamp) (Not Shown) | 2 |
| 01***20 | Screw (Not Illustrated) | 2 |
| 01***12 | Screw,(Not Shown) (For Std Cab) | 10 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Operator'S Cab (5/7) (Inside Cover)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***16 | Bolt, Mount Solenoid Valve | 4 |
| 01***20 | Bolt,(Forwarded Individually Parts) | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Operator'S Cab (5/7) (Inside Cover) (For U.S.A And Canada)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***20 | Bolt,(Forwarded Individually Parts) | 6 |
| 01***16 | Bolt - Starting Motor Ground Cable | 4 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Operator'S Cab (6/7) (Door 1/2)
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 2 |
| 01***08 | Nut | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Operator'S Cab (6/7) (Door 1/2) (For U.S.A And Canada)
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 2 |
| 01***08 | Nut | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Operator'S Cab (7/7) (Door 2/2)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 2 |
| 01***10 | Screw | 1 |
| 01***16 | Bolt, Mounting Transmission Control Switch | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Operator'S Cab(3/7)(Front&R.H.Side Window)(For U.S.A.&Canada
| 01***30 | Screw | 2 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 2 |
| 08***10 | Grommet,(For Slag Handling) | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Operator'S Cab(4/7)(Side And Rear Window)(For U.S.A.&Canada)
| 01***12 | Screw,(For Side Lamp) (Not Shown) | 2 |
| 01***20 | Screw (Not Illustrated) | 2 |
| 01***12 | Screw,(Not Shown) (For Std Cab) | 10 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Operator'S Seat
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 6 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Operator'S Seat Stand
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
| 01***10 | Nut,(Without Air Conditioner) | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Operator'S Seat Stand (Multi Adjustable Seat)
| 01***16 | Bolt (With Air Heater & Conditioner) | 4 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 4 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Operator'Scab (7/7) (Door2/2) (For U.S.A. And Canada)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 2 |
| 01***10 | Screw | 1 |
| 01***16 | Bolt, Mounting Transmission Control Switch | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Rear Cover
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Revolving Frame Under Cover
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 71 |
| 01***32 | Washer,(With Auto Emergency Steering) | 50 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Right Side Cover
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 13 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 10 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Right Stand And Lever (Front)
| 01***20 | Bolt,(With Auto Emergency Steering) | 10 |
| 01***30 | Bolt,(For Mechanical Governor) | 3 |
| 01***50 | Bolt (Kit) | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Right Stand And Lever(Rear)
| 01***16 | Bolt (With Air Heater & Conditioner) | 4 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 4 |
| 01***10 | Screw, Mount Wire Assembly | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Tool Box And Rear View Mirror
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 7 |
| 01***25 | Bolt,See Fig. K4010-65a0 | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Guard : Window Washer
| 01***12 | Bolt, Bolt,(No Need To Quick Shift) | 2 |
| 01***23 | Washer,(With Auto Emergency Steering) | 2 |
| 08***01 | Clip,(With Cab) | 3 |
Mark Plate? Tool And Kit
Komatsu : Pc120-5m(S/N 36601-Up) : Mark Plate? Tool And Kit : Kit
| 07***06 | O-Ring,(Not Shown) | 1 |
| 07***08 | O-Ring,(Tm8202-005) | 2 |
| 07***09 | O-Ring,(For Dual Tilt Dozer) | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Mark Plate? Tool And Kit : Marks And Plates (English)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 09***35 | Plate? Name,Machine (Limited Supply) | 1 |
| 09***61 | Plate? Instruction,Air Cleaner (Single Element) | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Mark Plate? Tool And Kit : Periodical Replacement And Safety Parts
| 07***25 | O-Ring,(See Fig. H0311-01a0-30) | 4 |
| 07***03 | Hose,(F4310-55a0 -17 ) | 1 |
| 07***04 | Hose, Tube To Torque Converter | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Mark Plate? Tool And Kit : Spare Parts
| 04***46 | V-Belt,Cooling Fan | 1 |
| 07***55 | O-Ring,Hydraulic Oil Filter | 1 |
| 07***34 | O-Ring, O-Ring,Drain Plug? R.H. Half Tank | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Mark Plate? Tool And Kit : Tool
| 07***50 | Pump, (Bellows Type) | 1 |
| 07***03 | Cartridge - Grease | 1 |
| 07***45 | Nozzle, Grease Pump (Non-Flexible Type) | 1 |
S4d95l-1b Engine S/N 48811-Up
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Additional Fuel Filter (Except Japan)(#59717-)
| 07***12 | Gasket,Mechanical Pump Piping | 2 |
| 60***00 | Fuel Filter Ass'Y | 1 |
| 60***20 | Cartridge,Pref | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Air Cleaner (Double Element Type)
| 04***10 | Ring,See Fig. K4010-65a0 | 1 |
| 07***69 | Clamp | 2 |
| 09***61 | Plate? Instruction,(Japanese-English) (Not Shown) | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Air Cleaner (Single Element Type)
| 04***10 | Ring,See Fig. K4010-65a0 | 1 |
| 07***69 | Clamp | 2 |
| 09***61 | Plate? Instruction,(Japanese-English) | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Air Intake Manifold And Connection
| 01***12 | Bolt,(With Speedometer) | 4 |
| 01***12 | Bolt | 3 |
| 01***70 | Bolt | 4 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Alternator (25a)
| 60***20 | Alternator A. (25a),(With Non Hardening Pulley) | 1 |
| KD***57 | Bearing,Ball? Front | 1 |
| KD***11 | Rear Bracket Ass'Y | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Alternator And Mounting (25a) (With Cover Type) (Except Japan)(#59717-)
| 01***40 | Bolt,(Cold Weather Spec.) | 1 |
| 01***25 | Bolt,(With Corrosion Resistor) | 3 |
| 01***60 | Screw | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Alternator And Mounting (25a) (Without Cover Type)
| 01***35 | Bolt,(Cold Weather Spec.) | 1 |
| 01***25 | Bolt,(With Corrosion Resistor) | 3 |
| 01***60 | Screw | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Camshaft And Tappet
| 01***20 | Screw | 2 |
| 04***16 | Fitting Wedge | 1 |
| 62***31 | Thrust Washer | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Corrosion Resistor (Except Japan)(#59717-)
| 07***12 | Gasket,(Without Air Compressor Type) (K1) | 4 |
| 09***02 | Plate? Instruction,(Indonesian-English) | 1 |
| 09***01 | Plate? Instruction,(English) (Except Japan) | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Crankshaft
| 01***35 | Screw | 1 |
| 62***00 | Main Metal Ass'Y | 5 |
| 62***00 | Thrust Metal Ass'Y | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Cylinder Block
| 01***20 | Bolt,(For Japan Pc200) | 2 |
| 01***08 | Nut,See Fig. K4010-04a0 | 1 |
| 04***20 | Pin,Dowel (Welded) | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Cylinder Head
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 4 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 17 |
| 01***32 | Washer, (Without Emergency Steering) | 17 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Cylinder Head Cover
| 01***14 | Screw | 1 |
| 04***50 | Screw | 4 |
| 07***80 | Clamp, Drain Hose | 3 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Exhaust Manifold And Turbocharger
| 01***25 | Grub Screw | 4 |
| 01***90 | Bolt,(For Large Fan) | 8 |
| 07***08 | Plug,(For W/O. Corrosion Resistor) | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Flywheel And Flywheel Housing
| 01***30 | Bolt | 6 |
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 11 |
| 07***15 | Plug,(Used When Without Heater) | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Front Cover And Gear
| 01***70 | Bolt,(For 75a Alternator) | 1 |
| 01***16 | Bolt | 2 |
| 01***16 | Screw | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Fuel Filter And Piping
| 01***30 | Screw | 2 |
| 01***35 | Bolt | 1 |
| 01***80 | Bolt | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Fuel Injection Pump (Feed Pump)(#101782-)
| DK***20 | Bolt, Joint | 1 |
| DK***60 | Feed Pump Ass'Y | 1 |
| DK***00 | Valve,Check | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Fuel Injection Pump (Feed Pump)(#48811-71918)
| DK***20 | Bolt, Joint | 1 |
| DK***00 | Valve,Check | 2 |
| DK***20 | Pump,Priming | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Fuel Injection Pump (Feed Pump)(#71919-101781)
| DK***20 | Bolt, Joint | 1 |
| DK***00 | Valve,Check | 2 |
| DK***20 | Pump,Priming | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Fuel Injection Pump (Governor) (1/2)(#101782-)
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Fuel Injection Pump (Governor) (1/2)(#48811-71918)
| DK***00 | Adapter | 1 |
| DK***01 | Governor Ass'Y | 1 |
| DK***20 | Capsule,Spring | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Fuel Injection Pump (Governor) (1/2)(#71919-101781)
| DK***00 | Shim? 2.00mm,(High Altitude Spec.) | 0 |
| DK***00 | Adapter | 1 |
| DK***20 | Capsule,Spring | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Fuel Injection Pump (Governor) (2/2)(#101782-)
| DK***40 | Gasket,Air Compressor | 2 |
| DK***00 | Nut,Cap | 1 |
| DK***20 | Cover | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Fuel Injection Pump (Governor) (2/2)(#48811-71918)
| DK***40 | Gasket,Air Compressor | 2 |
| DK***00 | Nut,Cap | 1 |
| DK***20 | Cover | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Fuel Injection Pump (Governor) (2/2)(#71919-101781)
| DK***40 | Gasket,Air Compressor | 2 |
| DK***00 | Nut,Cap | 1 |
| DK***20 | Cover | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Fuel Injection Pump (Pump) (1/2)(#101782-)
| 62***43 | Injection Pump Ass'Y | 1 |
| DK***30 | Bearing | 0 |
| DK***20 | Shim, 1.40mm; Was Dk029311-7220, Shim? 1.4mm | 0 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Fuel Injection Pump (Pump) (1/2)(#48811-71918)
| 62***41 | Injection Pump Ass'Y,(See Fig.0451) | 1 |
| DK***30 | Bearing | 0 |
| DK***20 | Shim, 1.40mm; Was Dk029311-7220, Shim? 1.4mm | 0 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Fuel Injection Pump (Pump) (1/2)(#71919-101781)
| 62***42 | Injection Pump Ass'Y,(See Fig.0451a) | 1 |
| DK***30 | Bearing | 0 |
| DK***20 | Shim, 1.40mm; Was Dk029311-7220, Shim? 1.4mm | 0 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Fuel Injection Pump (Pump) (2/2)(#101782-)
| DK***40 | Shim? 0.50mm, Shim, 0.50mm; Was Dk029311-0040 | 0 |
| DK***90 | Shim? 0.25mm, Shim, 0.25mm; Was Dk029311-0590 | 0 |
| DK***00 | Sleeve,Control | 4 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Fuel Injection Pump (Pump) (2/2)(#48811-71918)
| DK***40 | Shim? 0.50mm, Shim, 0.50mm; Was Dk029311-0040 | 0 |
| DK***90 | Shim? 0.25mm, Shim, 0.25mm; Was Dk029311-0590 | 0 |
| DK***00 | Sleeve,Control | 4 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Fuel Injection Pump (Pump) (2/2)(#71919-101781)
| DK***40 | Shim? 0.50mm, Shim, 0.50mm; Was Dk029311-0040 | 0 |
| DK***90 | Shim? 0.25mm, Shim, 0.25mm; Was Dk029311-0590 | 0 |
| DK***00 | Sleeve,Control | 4 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Fuel Injection Pump And Piping
| 01***35 | Stud | 4 |
| 01***12 | Bolt | 2 |
| 01***25 | Screw | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Fuel Nozzle And Spill Pipe
| 01***35 | Bolt, Mount Bracket To Floor | 4 |
| 07***80 | Clip | 7 |
| 07***00 | Clip | 7 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Gasket Kit
| 01***12 | Washer,Lock (Noise Suppression Spec.) (K2) | 1 |
| 07***18 | O-Ring,(See Fig.1601-29?1602-17) | 1 |
| 07***20 | O-Ring,Relief Valve | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Lubricating Oil Cooler
| 01***25 | Bolt,(With Corrosion Resistor) | 4 |
| 01***30 | Bolt,(Water Separator Spec.) | 7 |
| 01***50 | Bolt,(With Corrosion Resistor) | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Lubricating Oil Filter
| 60***41 | Cartridge,Engine? Oil Filter | 1 |
| 60***20 | Plate? Caution,(Italian-English) | 1 |
| 60***70 | Plate? Caution,Oil Filter And Bypass Filter | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Lubricating Oil Pump And Suction Pipe
| 01***12 | Bolt,(See Fig.0501) | 1 |
| 01***16 | Screw | 6 |
| 01***25 | Bolt,(With Corrosion Resistor) | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Muffler And Connection
| 01***50 | Bolt,(With Service Valve R.H.) | 1 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 5 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Oil Pan(#48811-67402)
| 01***12 | Bolt,(Without R.P.C.U.) | 3 |
| 01***14 | Bolt,(W/Joy Stick Str.)(W/O Heater) | 24 |
| 01***14 | Bolt | 24 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Oil Pan(#67403-)
| 01***12 | Bolt,(Without R.P.C.U.) | 3 |
| 01***14 | Bolt,(W/Joy Stick Str.)(W/O Heater) | 24 |
| 01***16 | Bolt,(With Alternator Cover Type) | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Piston And Connecting Rod
| 04***12 | Ring, Snap | 8 |
| 62***10 | Bolt | 2 |
| 62***41 | Piston (S) | 0 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Rocker Arm
| 01***65 | Bolt,(For Alternator Bracket Mount) | 5 |
| 61***30 | Circlip | 2 |
| 62***00 | Shaft Ass'Y | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Starting Motor (5.5kw)
| 60***20 | Starting Motor Ass'Y,(5.5kw) | 1 |
| KD***30 | Bracket,Center | 1 |
| KD***40 | Washer Ass'Y,(Not Shown) | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Starting Motor And Mounting (5.5kw)
| 01***16 | Bolt,(With Alternator Cover Type) | 1 |
| 01***25 | Bolt,(With Corrosion Resistor) | 1 |
| 01***30 | Bolt | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Turbocharger (Except Japan)
| 62***10 | Turbocharger Ass'Y | 1 |
| GA***16 | Bolt | 6 |
| GA***31 | Housing,Compressor | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Turbocharger Lubricating Oil Piping
| 01***16 | Screw | 5 |
| 01***20 | Screw | 4 |
| 01***30 | Bolt,(Water Separator Spec.) | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Water Pump And Cooling Fan
| 01***16 | Screw | 5 |
| 01***20 | Screw | 2 |
| 01***30 | Bolt,(Water Separator Spec.) | 6 |
Komatsu : Pc120-5m(S/N 36601-Up) : S4d95l-1b Engine S/N 48811-Up : Water Separator (Except Japan)(#59717-)
| 07***12 | Gasket,Mechanical Pump Piping | 1 |
| 60***31 | Separator Assembly, Water | 1 |
| 60***60 | Plug,Drain (4d105-5h? 4d105-5t) | 1 |
Swing
Komatsu : Pc120-5m(S/N 36601-Up) : Swing : Swing Circle
| 01***85 | Bolt,(For Perforated Mask) | 76 |
| 04***38 | Pin, Dowel | 2 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Swing : Swing Machinery
| 01***65 | Bolt, Mount Radiator To Frame (Bottom) | 1 |
| 01***55 | Bolt,(For Reinforced Type) | 12 |
| 01***30 | Bolt | 1 |
Travel And Under Carriage
Komatsu : Pc120-5m(S/N 36601-Up) : Travel And Under Carriage : Carrier Roller
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 8 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 8 |
| 20***50 | Carrier Roller Ass'Y | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Travel And Under Carriage : Front Idler
| 07***48 | O-Ring,(F4350-64a0 -21 ) | 2 |
| 17***80 | Seal Ring Ass'Y | 1 |
| 17***10 | Floating Seal Ass'Y | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Travel And Under Carriage : Hydraulic Piping (Travel Motor Line) (Lower 1/2)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 4 |
| 01***60 | Bolt | 6 |
Komatsu : Pc120-5m(S/N 36601-Up) : Travel And Under Carriage : Hydraulic Piping (Travel Motor Line) (Lower 2/2)
| 07***23 | O-Ring,(Crusher?Other Att.For Ppc Con | 3 |
| 07***34 | O-Ring,(Not Used When (B) Spec.) | 3 |
| 07***18 | Hose Assembly | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Travel And Under Carriage : Recoil Spring
| 01***30 | Bolt,(For Mechanical Governor) | 4 |
| 01***75 | Bolt,(For D65e) | 8 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
Komatsu : Pc120-5m(S/N 36601-Up) : Travel And Under Carriage : Sprocket (With Hy-Dash Mark Motor)
| 01***50 | Bolt,(For Tbg/Abe Spec.) | 34 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 64 |
| 20***20 | Bolt | 30 |
Komatsu : Pc120-5m(S/N 36601-Up) : Travel And Under Carriage : Track Frame
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Travel And Under Carriage : Track Roller
| 01***70 | Bolt,Rear Carrier (With Gumpad) | 56 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 56 |
| 07***42 | O-Ring, Between Tube And Divider Valve | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Travel And Under Carriage : Track Shoe (Master Pin Type) (Triple Grouser With Hole)
| 20***11 | Pin,Regular | 0 |
| 20***31 | Pin,Regular | 0 |
| 20***41 | Pin,Master | 0 |
Work Equipment (Backhoe)
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment (Backhoe) : Arm Cylinder
| 01***50 | Bolt (Kit) | 8 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***70 | Bolt,(With Wear Guard) | 12 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment (Backhoe) : Boom (With Work Equipment Lubrication Piping)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***30 | Bolt-Hex, Bolt,(With Center Guard) | 1 |
| 01***80 | Bolt,(With Hook) | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment (Backhoe) : Boom Cylinder
| 01***50 | Bolt (Kit) | 16 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment (Backhoe) : Bucket Cylinder
| 01***50 | Bolt (Kit) | 8 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment (Backhoe) : Hydraulic Piping (Arm And Bucket Cylinder Line) (Boom Side)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 20 |
| 01***32 | Washer,(With Auto Emergency Steering) | 20 |
| 20***21 | Tube | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment (Backhoe) : Reinforced Arm
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment (Backhoe) : Reinforced Bucket Link
| 01***20 | Bolt | 2 |
| 01***40 | Bolt | 1 |
| 01***70 | Bolt | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment (Backhoe) : Reinforced Bucket? 0.45m3 860mm (Horizontal Pin Type)
| 01***70 | Bolt,(With Wear Guard) | 4 |
| 01***45 | Washer,(For Quick Shift) (Mitsubishi) | 4 |
| 01***28 | Nut (Std) | 8 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment (Backhoe) : Reinforced Bucket? 0.45m3 860mm (Vertical Pin Type)
| 01***70 | Bolt,(With Wear Guard) | 4 |
| 01***45 | Washer,(For Quick Shift) (Mitsubishi) | 4 |
| 01***28 | Nut (Std) | 8 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment (Backhoe) : Work Equipment Lubrication Piping
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 11 |
| 01***32 | Washer,(With Auto Emergency Steering) | 11 |
| 07***00 | Fitting, Grease (Steering Cylinder) | 5 |
Work Equipment Control System
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Boom Lock Valve
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 4 |
| 07***20 | O-Ring,Relief Valve | 1 |
| 07***30 | O-Ring,Boom (For 50 Feet Long Front) | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hyd. Piping (Oil Cooler And Return Line)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***75 | Bolt,(For Adjusting) | 1 |
| 01***80 | Bolt,(Not Shown) | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Control Valve L.H.(1/4)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***12 | Bolt | 4 |
| 01***16 | Bolt (Op) | 4 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Control Valve L.H.(2/4)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***25 | Bolt, Seal Cover Mounting | 8 |
| 01***30 | Bolt (Itl) | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Control Valve L.H.(3/4)
| 01***11 | Nut - Mounting | 1 |
| 07***11 | O-Ring (Kit) | 1 |
| 07***12 | O-Ring (Itl) | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Control Valve L.H.(4/4)
| 01***11 | Nut - Mounting | 1 |
| 07***11 | O-Ring (Kit) | 1 |
| 07***34 | O-Ring, O-Ring,Drain Plug? R.H. Half Tank | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Control Valve R.H.(1/4)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***16 | Bolt (Op) | 4 |
| 01***25 | Bolt | 4 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Control Valve R.H.(2/4)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***12 | Bolt | 2 |
| 01***16 | Bolt (Op) | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Control Valve R.H.(3/4)
| 01***11 | Nut - Mounting | 1 |
| 07***11 | O-Ring (Kit) | 1 |
| 07***34 | O-Ring, O-Ring,Drain Plug? R.H. Half Tank | 3 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Control Valve R.H.(4/4)
| 01***11 | Nut - Mounting | 1 |
| 07***11 | O-Ring (Kit) | 1 |
| 07***12 | O-Ring (Itl) | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Piping (Drain Line)
| 07***34 | O-Ring,(Not Used When (B) Spec.) | 4 |
| 07***34 | O-Ring, O-Ring,Drain Plug? R.H. Half Tank | 2 |
| 07***04 | Hose,Inlet | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Piping (P.P.C. Piping 1/2)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 3 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Piping (P.P.C. Piping 2/2)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 07***23 | O-Ring,(Crusher?Other Att.For Ppc Con | 11 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Piping (Pilot Circuit)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
| 07***23 | O-Ring,(Crusher?Other Att.For Ppc Con | 10 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Piping (Pilot Piping 1/2)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 3 |
| 01***32 | Washer,(With Auto Emergency Steering) | 3 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Piping (Pilot Piping 2/2)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***32 | Washer,(With Auto Emergency Steering) | 3 |
| 07***23 | O-Ring,(Crusher?Other Att.For Ppc Con | 4 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Piping (Pressure Sensor Line And Shuttle Valve)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***95 | Bolt,(For 2nd Travel Speed) (Op) | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Piping (Suction And Derivary Line)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Piping (Swing Motor Line)
| 01***40 | Bolt,R.H. Outside And L.H. Inside, Bolt | 2 |
| 01***45 | Washer,(For Quick Shift) (Mitsubishi) | 2 |
| 07***95 | O-Ring,Transmission Strainer | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Piping (Travel Motor Line) (Upper)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***26 | Washer,Plain | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Piping(Arm And Bucket Cylinder Line)(Chassis Side)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***32 | Washer,(With Auto Emergency Steering) | 6 |
| 04***12 | Ring,Snap | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Piping(Boom Cylinder Line)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Pump (C.O. And N.C. Valve Ass'Y? Front) (9/15)
| 70***11 | Valve Ass'Y,C.O. And N.C | 1 |
| (****0) | Plug | 1 |
| (****1) | O-Ring | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Pump (C.O. And N.C. Valve Ass'Y? Rear) (13/15)
| 70***11 | Valve Ass'Y,C.O. And N.C | 1 |
| (****0) | Plug | 1 |
| (****1) | O-Ring | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Pump (Control Pump) (15/15)
| 70***01 | Pump Ass'Y,(Bar20) | 1 |
| 70***51 | Strainer, Strainer; Komatsu S/N 22001 & Abv. - Was 704-28-02751 | 1 |
| (****0) | Bushing,Plane | 4 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Pump (Pump Sub Ass'Y 1/5) (2/15)
| 01***16 | Bolt (Welded) | 6 |
| 01***23 | Washer,(With Auto Emergency Steering) | 6 |
| 07***65 | O-Ring,Injection Pump Case | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Pump (Pump Sub Ass'Y 2/5) (3/15)
| 01***40 | Bolt | 8 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 8 |
| 07***55 | O-Ring,Front Accessory Drive | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Pump (Pump Sub Ass'Y 3/5) (4/15)
| 01***40 | Bolt,(For Position Fixing) | 2 |
| 01***23 | Washer,(For Shipping) | 2 |
| 04***22 | Bolt,Eye | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Pump (Pump Sub Ass'Y 4/5) (5/15)
| 07***23 | O-Ring,(F4350-68a0 -13 ) | 1 |
| 07***34 | O-Ring, O-Ring,Drain Plug? R.H. Half Tank | 1 |
| 07***12 | Plug,Magnetic | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Pump (Pump Sub Ass'Y 5/5) (6/15)
| 01***40 | Bolt | 8 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 8 |
| 07***55 | O-Ring,Front Accessory Drive | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Pump (Relief Valve) (14/15)
| 07***10 | O-Ring,(F4350-62a0 -5 ), O-Ring; Komatsu S/N 22***01 & Abv - Was 07000-02010, O-Ring; Was 07000-02010 | 1 |
| 07***34 | O-Ring, O-Ring,Drain Plug? R.H. Half Tank | 1 |
| 70***10 | O-Ring (Kit) | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Pump (Servo Valve Sub Ass'Y? Front) (8/15)
| 70***02 | Valve Sub Ass'Y,Servo? Front | 1 |
| (****3) | O-Ring | 1 |
| (****0) | Arm | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Pump (Servo Valve Sub Ass'Y? Rear) (12/15)
| 70***02 | Valve Sub Ass'Y,Servo? Rear | 1 |
| (****3) | O-Ring | 1 |
| (****0) | Arm | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Pump (Servo Valve Unit? Front) (7/15)
| 01***25 | Washer,Spring?For Additional Rear Lam | 8 |
| 07***11 | O-Ring (Kit) | 4 |
| 07***18 | O-Ring,(See Fig.1601-29?1602-17) | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Pump (Servo Valve Unit? Rear) (11/15)
| 01***25 | Washer,Spring?For Additional Rear Lam | 4 |
| 07***11 | O-Ring (Kit) | 2 |
| 07***48 | O-Ring,(F4350-64a0 -21 ) | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Pump (Unit) (1/15)
| 01***85 | Bolt,(For 2nd Travel Speed) (Op) | 3 |
| 01***32 | Washer,(With Auto Emergency Steering) | 3 |
| 01***23 | Washer,(For Shipping) | 8 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydraulic Tank
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 7 |
| 01***40 | Bolt,R.H. Outside And L.H. Inside, Bolt | 4 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Hydroulic Pump (T.V.C. Valve Ass'Y? Front) (10/15)
| 07***16 | O-Ring,Water Pump | 1 |
| 70***11 | Valve Ass'Y,T.V.C | 1 |
| 70***50 | Bolt | 4 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : P.P.C. Valve (For Wrist Control)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 4 |
| 07***20 | O-Ring,Relief Valve | 4 |
| 07***12 | Plug,Taper | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Swing Motor (1/2)
| 04***30 | Ring, Snap | 1 |
| 07***80 | O-Ring,Hydraulic Oil Filter | 1 |
| 07***34 | O-Ring,(For Without Brake Assistor) | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Swing Motor (2/2)
| 07***16 | O-Ring | 1 |
| 07***16 | Ring, Back-Up | 2 |
| 07***34 | O-Ring,(For 2-Actuater Attachment) | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Swivel Joint
| 01***35 | Bolt,(For Position Fixing) | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
| 04***25 | Ring, Retaining | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Travel Motor (1/3) (With Hy-Dash Mark)
| 04***93 | Ball,Steel | 2 |
| 06***04 | Bearing,Ball | 1 |
| 06***07 | Bearing, Ball | 1 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Travel Motor (2/3) (With Hy-Dash Mark)
| 01***55 | Bolt | 4 |
| 01***40 | Bolt | 9 |
| 07***06 | O-Ring,(Not Shown) | 2 |
Komatsu : Pc120-5m(S/N 36601-Up) : Work Equipment Control System : Travel Motor (3/3) (With Hy-Dash Mark)
| 01***45 | Bolt,(Cold Terrain Spec.) | 12 |
| 04***15 | Ring,Snap | 1 |
| 04***15 | Ring,Back-Up | 3 |
PC120-5M(S/N 36601-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. For export machines built since approximately 2003, a 17-character ISO PIN is also found on the emissions/export plate near the engine bay. Read the first three characters to identify the equipment family.
| Prefix | Identifies | Notes |
|---|---|---|
| PC | PC120-5M (Mighty Spec.) | Identifies the hydraulic crawler excavator family. The numeric portion indicates the approximate operating weight class (~12 tonnes). Includes specific 'Mighty' configuration for S/N 36601-UP. |
Frequently asked questions
What engine is used in the PC120-5M (S/N 36601-UP)?
This machine is powered by a Perkins 1004-4THR diesel engine.
What is the operating weight of this excavator?
The operating weight varies by configuration, ranging from approximately 25,350 lb (11,499 kg) to 28,219 lb (12.8 t).
What model replaced the PC120-5 series?
The PC120-5 was succeeded by later generations in the PC120 lineage, such as the PC120-6.
What PC120-5M(S/N 36601-UP) owners discuss
What engine is used in the Komatsu PC120-5M (S/N 36601-UP)?
The machine is powered by a Perkins 1004-4THR diesel engine, providing approximately 84 hp (62 kW) of power.
What are the known hydraulic performance issues for this series?
Users have reported instances where hydraulic functions slow down once the fluid reaches operating temperature, specifically after roughly 45 minutes to one hour of operation. Diagnostic procedures involve testing PC servo pressure, main relief pressure, and LS differential pressure.
What engine-related power loss symptoms should be monitored?
The machine may experience power loss after approximately 20 minutes of operation; common causes to investigate include fuel filter clogging or injector issues.
What are the standard track and undercarriage dimensions for this model?
The machine features a track width of 23.6 in (600 mm) to 23.62 in (600 mm).
What should be checked when buying a used Komatsu PC120-5M (S/N 36601-UP)?
Verify the serial number on the chassis frame casting against the riveted plate on the right-hand side of the cab; a mismatch is a primary signal for stolen equipment. Additionally, check Komtrax history if available to compare recorded hours against the dashboard meter to detect potential hour-meter rollback.
What engine specifications are documented for the 1004-4THR engine?
The engine features a 4-cylinder configuration with a displacement of approximately 243 cu in (4 L) to 3990 cc (3.99 l). The cylinder bore and stroke are 3.94 in x 5 in (100 mm x 127 mm), and the engine reaches maximum torque at 2200 rpm.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
Need a specific PC120-5M(S/N 36601-UP) part?
Search live OEM part data, check fitment, and cross-reference alternatives with Heavy Parts AI.