Komatsuhydraulic excavatorlarge (pc300 - )
Komatsu PC300LC-2(S/N 11001-UP)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu PC300LC-2 (S/N 11001-up) is a large, roughly 30-tonne-class crawler hydraulic excavator built on the long (LC) undercarriage version of the PC300-2 platform. Power comes from a Cummins-built N855/NT855-family inline-six diesel: mechanically governed, with a PT (pressure-time) gear-driven fuel system and no electronic engine controls. This serial block runs in the mid-1980s, following the PC300-1 (S/N 10001-up), which ends around 1984, and ahead of the PC300-3 (S/N 12001-up), which starts around 1988. Komatsu offered the PC300-2 family as a standard-undercarriage digging machine and this LC long-undercarriage version for softer or less stable ground, with factory front-end options including a rotating clamshell/grapple, a single-shank ripper, and a three-shank ripper.
Across the PC300 line, the biggest engineering break comes right after this serial range: the PC300-3 drops the Cummins engine for Komatsu's own S6D125 diesel, and later generations add electronic engine and hydraulic management this machine never had. That makes the PC300LC-2 a transitional, mechanically-governed unit: diagnosis runs on gauges, warning lamps, and a shop manual, not fault codes. In the used and parts market today it's valued mainly for structural and mechanical-hydraulic commonality with the PC300-1 and PC300-2, and as a rebuildable base for owners already running PT-fuel Cummins-powered Komatsu equipment. Buyers should plan around a fully mechanical fuel system, thin documentation for this exact serial range, and undercarriage and engine wear typical of a machine this age.
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 PC300LC-2(S/N 11001-UP) specifications
Engine
| Engine model | Cummins NT855-series diesel, 6-cylinder, turbocharged. Komatsu parts documentation groups this engine family across the PC300, PC300-1, PC300-2 and PC400-1 line. |
| Cylinders | 6 |
| Emissions tier | Pre-regulation. Built before EPA Tier and EU Stage nonroad emissions standards existed. |
| Gross/net power and displacement | Not published for this serial range (11001-UP) in available spec sheets. Confirm with a Komatsu dealer or the machine's shop manual. |
Weights
| Operating weight (std and LC configuration) | Not published for this serial range (11001-UP) in available spec sheets. Confirm with a Komatsu dealer or the machine's shop manual. |
| Ground pressure | Not published for this serial range (11001-UP). Confirm with a Komatsu dealer or the machine's shop manual. |
| Transport weight | Not published for this serial range (11001-UP). Confirm with a Komatsu dealer or the machine's shop manual. |
Dimensions
| Transport length/width/height | Not published for this serial range (11001-UP) in available spec sheets. Confirm with a Komatsu dealer or the machine's shop manual. |
| Tail swing radius | Not published for this serial range (11001-UP). Confirm with a Komatsu dealer or the machine's shop manual. |
| Track shoe width, ground clearance, undercarriage length | Not published for this serial range (11001-UP). Confirm with a Komatsu dealer or the machine's shop manual. |
Performance
| Max dig depth, max reach, max dump height, max cutting height | Not published for this serial range (11001-UP) in available spec sheets. Confirm with a Komatsu dealer or the machine's shop manual. |
| Swing speed, travel speed | Not published for this serial range (11001-UP). Confirm with a Komatsu dealer or the machine's shop manual. |
| Gradeability, drawbar pull | Not published for this serial range (11001-UP). Confirm with a Komatsu dealer or the machine's shop manual. |
Forces
| Bucket digging force | Not published for this serial range (11001-UP) in available spec sheets. Confirm with a Komatsu dealer or the machine's shop manual. |
| Stick/arm digging force (std vs long stick) | Not published for this serial range (11001-UP). Confirm with a Komatsu dealer or the machine's shop manual. |
Service capacities (summary)
| Fuel tank | Not published for this serial range (11001-UP) in available spec sheets. Confirm with a Komatsu dealer or the machine's shop manual. |
| Hydraulic system/tank | Not published for this serial range (11001-UP). Confirm with a Komatsu dealer or the machine's shop manual. |
| Engine oil, cooling system | Not published for this serial range (11001-UP). Confirm with a Komatsu dealer or the machine's shop manual. |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
PC300LC-2(S/N 11001-UP) fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with oil filter) | Not published for S/N 11001-UP in any located OEM source. The Cummins-built N855/NT855 diesel fitted to this range carries an oil pan rated by its engine builder at roughly 34-42 L (9-11 US gal) depending on pan/filter configuration. Treat as an approximate range only, not a confirmed Komatsu-fitted figure, until checked against the machine's OMM. | Komatsu Genuine engine oil (EO), API CD/CC service class. Grade by ambient temperature per Komatsu's standard era EO viscosity chart: SAE 10W or 10W-30 in cold climates, SAE 30 or 15W-40 in temperate-to-hot climates. |
| Cooling system | Not published for S/N 11001-UP in any located OEM source. Excavators of comparable size and engine class from this era commonly run 25-35 L (6.6-9.2 US gal), but this is an unverified estimate, not a confirmed figure for this machine. | Komatsu-approved ethylene-glycol antifreeze/coolant with a corrosion-inhibiting additive, mixed to the concentration matched to the expected ambient low temperature. |
| Fuel tank | Not confirmed for S/N 11001-UP specifically. The immediate predecessor PC300-1(S/N 10001-UP) is documented at 440 L (116.3 US gal); the related PC400-1, which shares the same Cummins engine family, is documented at 450 L (118.9 US gal). Figures vary by chassis/configuration across this engine family, so treat any single number as approximate until confirmed against the PC300-2 OMM. | No. 2-D diesel fuel meeting commercial specification. Use No. 1-D or a winter blend in sub-freezing ambient temperatures for cold-flow performance. |
| Hydraulic system total and hydraulic tank | Not confirmed for S/N 11001-UP specifically. The immediate predecessor PC300-1(S/N 10001-UP) is documented at 220 L (58.2 US gal) total system fluid; the related PC400-1 is documented at 300 L (79.3 US gal). Figures vary by chassis/configuration, so treat any single number as approximate until confirmed against the PC300-2 OMM. No tank-only versus total-system split was found for either reference machine. | Komatsu Genuine hydraulic oil, anti-wear type. Grade by ambient temperature per Komatsu's standard hydraulic-oil viscosity chart for this era: lighter viscosity in cold climates, heavier in hot climates. |
| Final drive (each) | Not published for S/N 11001-UP in any located OEM source. Verify against the machine's OMM or a dealer. | Komatsu Genuine gear oil, extreme-pressure (EP) type, graded by ambient temperature. Komatsu specifies its own gear oil over generic automotive hypoid gear oil for this final-drive design. |
| Swing drive | Not published for S/N 11001-UP in any located OEM source. Verify against the machine's OMM or a dealer. | Komatsu Genuine gear oil, same extreme-pressure grade and climate-based viscosity guidance as the final drives. |
| Pilot/other hydraulic circuits | No separate refill volume is broken out for this generation. The pilot/control circuit draws from the main hydraulic tank rather than a dedicated reservoir. | Same hydraulic oil as the main hydraulic system. |
| Grease (spec only) | N/A, specification only, no volumetric refill capacity applies. | Komatsu Genuine multipurpose lithium-base grease (G2-LI grade, molybdenum-disulfide fortified) for all pin, bushing, and work-equipment linkage points. A softer winter-grade lithium grease applies in sub-freezing climates per the dealer's grease chart. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Komatsu PC300LC-2(S/N 11001-UP) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 50 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 4,000 h |
|
Servicing the PC300LC-2(S/N 11001-UP) beyond the schedule
Predictive maintenance & fluid analysis
With no ECM and no fault codes on this Cummins-powered PC300LC-2, fluid analysis is the main early-warning tool. Sample engine oil at every change to track coolant intrusion, fuel dilution from the PT pump, and cam-lobe wear metal before it turns into a symptom. Sample hydraulic oil regularly to catch swing or travel motor wear early, since gauge readings alone won't flag it. Watch fuel filter condition for water and sediment; a rising change frequency often signals a failing PT pump seal before it causes a stall or hard start.
Corrective & common repairs
Common complaints on this generation trace back to the PT fuel system: air intrusion or lost prime causes hard starting or power loss and needs a full fuel-system bleed, not just a filter swap. Cam-lobe wear on the earlier small-diameter camshaft shows up as rough idle or timing drift; inspect the cam before replacing injectors outright. Ether cold-start aid over-metering can wash oil off cylinder walls and accelerate liner wear. Rebuild worn boom, arm, and bucket pin bores promptly; the LC undercarriage carries extra load from ripper and clamshell duty.
Overhaul & rebuild points
Any engine teardown on this serial range should include a cylinder liner counterbore inspection; pre-1986 builds are flagged for counterbore cracking and this block sits in that window. Recalibrate or rebuild the PT fuel pump and injectors together, not separately, since PT systems are tuned as a matched set. On the LC undercarriage, expect earlier track link, bushing, and roller wear than the standard PC300-2 given the longer ground contact; budget undercarriage rebuilds alongside swing bearing and final drive gear inspection at major overhaul.
Seasonal & environment servicing
Cold starts rely on the ether aid; meter it carefully since there's no ECM to limit over-priming, which can wash cylinders and damage pistons and liners. Check coolant strength and drain fuel/water separators more often in humid or wet seasons to protect the PT pump from water intrusion. On the long LC undercarriage, re-check track sag more often when working muddy or rocky ground, and clean radiator and oil cooler fins frequently if running ripper or clamshell duty in dusty quarry conditions.
PC300LC-2(S/N 11001-UP) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 600-311-8291 | Cartridge,Fuel Filter | Fuel system service | Check fitment → |
| 6710-11-3381 | Screen,Filter | Scheduled service item | Check fitment → |
| 02890-01018 | O-Ring,Filter | Scheduled service item | Check fitment → |
| 207-977-1610 | Filter Ass'Y | Scheduled service item | Check fitment → |
| 07002-03334 | O-Ring, At Transmission Filter | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
PC300LC-2(S/N 11001-UP) attachments & work tools
Buckets
Factory parts book for this serial range lists a general-purpose bucket at 1.2 m³ (1.57 cu yd), 1300 mm (51 in) wide, plus a wider light-work bucket at 1.4 m³ (1.83 cu yd), 1500 mm (59 in). Heavy-duty/rock bucket runs smaller at 1.02 m³ (1.33 cu yd), 1170 mm (46 in), with a trenching bucket at 1.0 m³ (1.31 cu yd), 1125 mm (44 in); slope-finishing, trapezoidal, ditch-cleaning and a digging-type clamshell bucket are also catalogued without a stated capacity. All are pin-on units through a common bucket pin bore reported around 90 mm x 580 mm (3.5 in x 22.8 in) for this size class; a coupler is an aftermarket add-on to that same pin, not a factory-catalog item on this vintage machine.
Hydraulic hammers
This carrier sits in roughly the 28-31 tonne (31-34 US ton) operating class, the same band as its direct successor generation of this body style. Breaker lines built for 27-32 t carriers are the match here (medium/large-range box or side-rod hammers from the major breaker brands), with hammer operating weight typically 1,600-2,500 kg (3,500-5,500 lb), chisel diameter around 135-155 mm (5.3-6.1 in), and blow rate roughly 300-750 bpm depending on brand and design (varies by configuration/series). No factory breaker circuit is catalogued for this exact serial range; period practice was a bolt-on auxiliary one-way circuit rather than a preinstalled breaker line.
Quick couplers
Not a factory-catalog option for this serial range — the parts book lists only pin-on buckets and ground-engaging tools. If retrofitted, wedge-type or hydraulic pin-grabber couplers sized to this class's bucket pin (about 90 mm) are the norm on 25-32 tonne excavators; exact coupler pin/spread dimensions for this specific serial range are not documented — verify with your dealer or attachment supplier.
Thumbs/grapples
No bolt-on mechanical or hydraulic thumb is catalogued for this machine. The parts book does show a factory digging-type clamshell bucket plumbed through a dedicated rotator control valve (piping to change the rotor block), meaning a rotating clamshell/grapple attachment was a genuine factory-supported option for this serial range, not a thumb. An aftermarket hydraulic thumb, if fitted, would be sized to the stick/bucket pin and tap the bucket-cylinder circuit; not documented for this exact serial range.
Rippers
Factory-catalogued ground-engaging options include a single-shank ripper and a three-shank ripper, plus a combination ripper-tooth bucket at 0.8 m³ (1.05 cu yd), 1200 mm (47 in) wide. The special-application piping section also references a heavier "giant ripper" fitment beyond the standard and three-shank units, though its own dimensions are not listed in the book.
Hydraulic-kit notes
The parts book documents a dedicated attachment-side auxiliary piping kit and a rotor-block control-valve circuit for driving a rotating attachment, fed in part by a separate self-supply pump option, along with a pilot-line piping variant for auxiliary control routing. No pressure/flow figures are stated in the book itself; a one-way auxiliary circuit added for breaker or rotator work on this size class typically runs around 150-180 bar and 170-230 L/min, but exact tank/pump sizing for this exact serial range is not documented — verify with your dealer or shop manual.
All PC300LC-2(S/N 11001-UP) assemblies by section
Every catalogued assembly group for the Komatsu PC300LC-2(S/N 11001-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 : Pc300lc-2(S/N 11001-Up) : Engine Related Parts And Electrical System : Air Cleaner And Connection(#11001-11010)
| 01***80 | Bolt,(Not Shown) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 8 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Engine Related Parts And Electrical System : Air Cleaner And Connection(#11011-)
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 8 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Engine Related Parts And Electrical System : Battery And Relay Switch
| 01***30 | Bolt,(Cold Terrain Spec.) | 1 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***25 | Bolt,Without Revolution Sensor | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Engine Related Parts And Electrical System : By-Pass Filter And Piping
| 01***16 | Bolt (With Air Heater & Conditioner) | 8 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 8 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Engine Related Parts And Electrical System : Electrical System (1/2)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 9 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Engine Related Parts And Electrical System : Electrical System (2/2)(#11001-11280)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 4 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 6 |
| 01***25 | Bolt,Without Revolution Sensor | 3 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Engine Related Parts And Electrical System : Electrical System (2/2)(#11281-)
| 01***16 | Bolt (With Air Heater & Conditioner) | 6 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***30 | Bolt-Hex, Bolt,(With Center Guard) | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Engine Related Parts And Electrical System : Engine Mount
| 01***85 | Bolt,(For Perforated Mask) | 8 |
| 01***85 | Bolt | 2 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 8 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Engine Related Parts And Electrical System : Fuel Control Lever And Linkage
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
| 01***60 | Capscrew | 2 |
| 01***65 | Bolt | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Engine Related Parts And Electrical System : Fuel Tank And Piping
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***30 | Bolt,(For Rubber Shoe) | 6 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Engine Related Parts And Electrical System : Instrument Panel (1/2)
| 01***20 | Bolt,(With Auto Emergency Steering) | 8 |
| 01***12 | Screw,(For Side Lamp) (Not Shown) | 2 |
| 01***10 | Washer,Spring (For Engine Room Lamp) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Engine Related Parts And Electrical System : Instrument Panel (1/2) (E.J.) (Fwc)
| 01***20 | Bolt,(With Auto Emergency Steering) | 9 |
| 01***12 | Screw,(For Side Lamp) (Not Shown) | 2 |
| 01***10 | Washer,Spring (For Engine Room Lamp) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Engine Related Parts And Electrical System : Instrument Panel (2/2)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***20 | Screw (Not Illustrated) | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Engine Related Parts And Electrical System : Instrument Panel (2/2) (E.J.) (Fwc)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***20 | Screw (Not Illustrated) | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Engine Related Parts And Electrical System : Muffler And Connection
| 01***30 | Bolt,(Not Used With Emergency Str.) | 5 |
| 01***20 | Capscrew - M12 X 1.75 | 4 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Engine Related Parts And Electrical System : Power Take Off
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 20 |
| 01***45 | Bolt, Mounting Bracket To Radiator (Top) | 5 |
| 01***50 | Bolt,(For Strengthened Cover) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Engine Related Parts And Electrical System : Radiator And Oil Cooler
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 10 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 15 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 6 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Engine Related Parts And Electrical System : Radiator Piping
| 01***40 | Bolt,(With Service Valve R.H.) | 2 |
| 01***29 | Washer,Spring (Cold Weather Spec.) | 2 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 2 |
N-855-1 S/N 162054-Up
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Air Cleaner
| 04***10 | Ring,See Fig. K4010-65a0 | 1 |
| 09***05 | Plate? Caution,(Not Shown) | 1 |
| 09***05 | Plate? Instruction,(Without Weather Cap Type) | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Air Compressor
| 02***22 | Bolt | 2 |
| 02***70 | Bolt | 4 |
| 02***32 | Bolt,(With Joy Stick Steering) | 6 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Air Compressor And Piping (For Pc300-1)
| 01***20 | Bolt | 1 |
| 01***19 | Washer,(Not Used With Ventilator) | 1 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Air Intake Manifold And Ribbon Heater(#162054-181379)
| 01***29 | Washer,Spring (Cold Weather Spec.) | 9 |
| 01***16 | Washer,Radio Controlled Slag Handling | 9 |
| 02***51 | Bolt (Op) | 3 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Air Intake Manifold And Ribbon Heater(#181380-)
| 01***29 | Washer,Spring (Cold Weather Spec.) | 9 |
| 01***16 | Washer,Radio Controlled Slag Handling | 9 |
| 02***70 | Bolt (Op) | 3 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Alternator
| 60***70 | Alternator A. (25a) | 1 |
| KD***37 | Bearing,Ball? Front | 1 |
| KD***20 | Holder,Brush | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Alternator And Mounting
| 01***60 | Bolt, Trunnion Cap | 1 |
| 01***35 | Bolt,(Cold Weather Spec.) | 1 |
| 01***10 | Nut,(Dust?Drip Proof? Trimming S.) | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Cam Follower And Push Rod
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Camshaft
| 02***25 | Key | 1 |
| 66***30 | Washer,Thrust | 1 |
| 66***50 | Plug | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Corrosion Resistor
| 01***29 | Washer,Spring (Cold Weather Spec.) | 4 |
| 02***32 | Bolt,(With Joy Stick Steering) | 4 |
| 07***45 | Hose,Drain | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Crankshaft And Vibration Damper
| 01***30 | Bolt,Radio Controlled Slag Handling | 6 |
| 01***36 | Washer,Radio Controlled Slag Handling | 6 |
| 01***48 | Washer,Spring? Single Flange | 6 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Cylinder Block
| 02***16 | Bolt | 12 |
| 02***25 | Bolt,(Cold Weather Spec.) | 4 |
| 02***16 | Washer,Radio Controlled Slag Handling | 12 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Cylinder Head
| 02***04 | Plug, Pipe | 6 |
| 02***04 | Plug | 4 |
| 02***07 | Plug | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Engine Support
| 61***30 | Washer | 8 |
| 67***10 | Support,Front | 1 |
| 67***20 | Support,Front | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Exhaust Manifold
| 02***38 | Bolt | 8 |
| 02***95 | Bolt | 4 |
| 66***11 | Clamp,Exhaust Manifold | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Fan And Fan Pulley
| 01***30 | Bolt,Radio Controlled Slag Handling | 2 |
| 01***35 | Bolt,(For Pedal Steering) | 2 |
| 01***45 | Bolt, Mount Center Hinge Retainer (Lower) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Flywheel And Flywheel Housing
| 01***16 | Bolt,(For Slag Handling) | 3 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 2 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 5 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Fuel Filter
| 01***29 | Washer,Spring (Cold Weather Spec.) | 4 |
| 02***32 | Bolt,(With Joy Stick Steering) | 4 |
| 07***12 | Gasket,Mechanical Pump Piping | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Gear Case Cover
| 01***34 | Washer,Spring | 18 |
| 02***25 | Bolt,(Cold Weather Spec.) | 3 |
| 02***64 | Bolt | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Injector
| 67***31 | Plunger Ass'Y | 1 |
| 67***10 | Adapter,Injector | 1 |
| 67***20 | Barrel,Injector | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Kit
| 02***18 | O-Ring,Filter | 1 |
| 02***20 | O-Ring,Barrel | 1 |
| 02***43 | O-Ring,Water Manifold | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Lubricating Oil Bypass Filter
| 02***19 | Bolt | 8 |
| 02***06 | Nut,Radio Controlled Slag Handling | 8 |
| 02***16 | Washer,Radio Controlled Slag Handling | 8 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Lubricating Oil Cooler
| 01***30 | Bolt,(For France Noise Suppression) | 4 |
| 01***60 | Bolt (M10-1.50x60) | 1 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 5 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Lubricating Oil Filter
| 01***34 | Washer,Spring | 4 |
| 01***48 | Washer,Spring? Single Flange | 1 |
| 01***26 | Washer | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Lubricating Oil Piping
| 01***16 | Bolt,(For Slag Handling) | 1 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 1 |
| 01***16 | Washer,(For 35a Alternator) | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Lubricating Oil Pump
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 2 |
| 02***64 | Bolt | 2 |
| 02***25 | Bolt,(Europe Spec.) | 6 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Muffler
| 61***10 | Gasket,Turbocharger | 1 |
| 67***40 | Gasket,Muffler | 1 |
| 67***10 | Muffler | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Oil Pan
| 01***30 | Bolt,(Cold Terrain Spec.) | 1 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 1 |
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Piston And Connecting Rod
| 02***13 | Pin,Dowel | 2 |
| 66***30 | Ring,Snap | 2 |
| 67***10 | Pin,Piston | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Pt Fuel Pump (1/7)
| 02***04 | Nut | 2 |
| 02***04 | Plug | 4 |
| 02***18 | O-Ring,Filter | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Pt Fuel Pump (2/7)
| 01***20 | Washer,Spring | 3 |
| 02***25 | Bolt,Radio Controlled Slag Handling | 2 |
| 02***05 | Nut | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Pt Fuel Pump (3/7)
| 01***13 | Washer,Spring | 2 |
| 01***20 | Washer,Spring | 9 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Pt Fuel Pump (4/7)
| 01***20 | Washer,Spring | 4 |
| 02***32 | Bolt,(Logging Spec.) | 2 |
| 66***20 | Ring,Snap | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Pt Fuel Pump (5/7)
| 02***45 | Bolt | 2 |
| 02***12 | Washer,Spring | 4 |
| 66***30 | Washer,Spring | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Pt Fuel Pump (6/7)
| 01***20 | Washer,Spring | 5 |
| 02***32 | Bolt,(Logging Spec.) | 3 |
| 02***38 | Bolt | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Pt Fuel Pump (7/7)
| 01***20 | Washer,Spring | 2 |
| 02***32 | Bolt | 2 |
| 02***64 | Bolt,(For Shipping) | 6 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Pt Fuel Pump And Piping(#162054-181379)
| 01***29 | Washer,Spring (Cold Weather Spec.) | 2 |
| 02***25 | Bolt,Radio Controlled Slag Handling | 4 |
| 02***13 | Bolt | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Pt Fuel Pump And Piping(#181380-)
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 1 |
| 01***29 | Washer,Spring (Cold Weather Spec.) | 3 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Pt Fuel Pump Drive
| 02***25 | Bolt | 5 |
| 02***28 | Washer,Spring | 5 |
| 02***04 | Plug,(For Shipping) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Rear Cover
| 02***16 | Bolt | 4 |
| 02***25 | Bolt | 2 |
| 02***32 | Bolt | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Regulator And Safety Relay
| 08***01 | Dust - Indicator | 1 |
| 60***90 | Signal,Heater | 1 |
| 60***90 | Relay, Ribbon Heaters | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Rocker Arm And Housing
| 66***20 | Shaft Ass'Y,Rocker Arm | 1 |
| 66***20 | Plug | 2 |
| 66***30 | Bushing,Arm | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Rocker Arm Housing Cover
| 02***25 | Bolt,(Cold Weather Spec.) | 6 |
| 02***51 | Bolt (Op) | 9 |
| 02***20 | Washer | 15 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Starting Motor
| 60***24 | Starting Motor A.,(11kw) (Cold Weather Spec.) | 1 |
| KD***00 | Seal Ass'Y,(Not Shown) | 1 |
| KD***82 | Screw,Dish | 8 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Starting Motor And Mounting
| 01***45 | Bolt,(For Slag Handling) | 3 |
| 01***22 | Screw | 2 |
| 01***29 | Washer,Spring (Cold Weather Spec.) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Tension Pulley
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 6 |
| 01***35 | Bolt,(Cold Weather Spec.) | 1 |
| 01***40 | Bolt,(Cold Weather Spec.) | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Water Manifold And Thermostat
| 01***29 | Washer,Spring (Cold Weather Spec.) | 6 |
| 01***29 | Washer, Spring | 12 |
| 02***25 | Bolt | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Water Pump
| 01***29 | Washer,Spring (Cold Weather Spec.) | 7 |
| 02***57 | Bolt | 7 |
| 02***04 | Plug,(For Shipping) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : N-855-1 S/N 162054-Up : Water Separator
| 07***12 | Gasket,Mechanical Pump Piping | 1 |
| 07***11 | Plug,(For Shipping) | 1 |
| 60***11 | Water Separator A | 1 |
Optional Parts
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Air Conditioner Piping : Unit_01_of_02
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 12 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Air Conditioner Piping : Unit_02_of_02
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
| 07***59 | Clamp,See Fig. K4010-05a0 | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Air Piping And Air Conditioner
| 01***12 | Bolt,(With Cylinder Cover) | 4 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 4 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Car Cooler Piping (1/3)
| 01***20 | Bolt,(With Auto Emergency Steering) | 4 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 5 |
| 01***06 | Nut, Regular Hexagon (M8-1.25) | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Car Cooler Piping (2/3)
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***20 | Bolt,(Used When Towing Winch) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Car Cooler Piping (3/3)
| 01***20 | Bolt,(With Auto Emergency Steering) | 4 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Clamshell Bucket? Digging Type
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***30 | Bolt-Hex, Bolt,(With Center Guard) | 4 |
| 01***35 | Bolt,R.H. Outside And L.H. Inside | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Clamshell Cylinder
| 07***45 | O-Ring,Cover | 1 |
| 07***06 | Bushing | 2 |
| 07***60 | Seal,(Y1620-41a0a-14) | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Clamshell Piping
| 01***50 | Bolt,(For Strengthened Cover) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Coloring Window Glass
| 20***80 | Proof,Dust | 2 |
| 20***10 | Sash | 1 |
| 20***20 | Lock Ass'Y | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Compressor And Control Pan
| 20***60 | Case Ass'Y | 1 |
| 20***70 | Switch | 1 |
| 20***80 | Resistor | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Compressor Related Parts
| 01***20 | Bolt,(With Auto Emergency Steering) | 4 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Condenser Unit : Unit_01_of_02
| 20***70 | Condenser | 1 |
| 20***80 | Motor,Fan | 1 |
| 20***90 | Shroud | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Condenser Unit : Unit_02_of_02
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Control Unit
| 20***60 | Control Ass'Y | 1 |
| 20***00 | Switch | 1 |
| 20***10 | Ornament | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Cooling Unit : Unit_02_of_02
| 20***10 | Cooling Unit | 1 |
| 20***10 | Case Ass'Y | 1 |
| 20***20 | Case Ass'Y | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Cooling Unit : Unit_01_of_02
| 20***60 | Evaporator | 1 |
| 20***70 | Case Ass'Y | 1 |
| 20***80 | Grille Ass'Y | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Defroster
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 3 |
| 01***03 | Nut,(With Joy Stick Steering) | 3 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 3 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Deluxe Seat (1/2)
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 4 |
| 20***40 | Belt,Seat | 1 |
| 20***60 | Washer | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Deluxe Seat (2/2)
| 20***00 | Seat Ass'Y | 1 |
| 20***50 | Cushion,Seat | 1 |
| 20***60 | Cushion,Back | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Ditch Cleaning Bucket
| 09***96 | Pin, Mount Center Teeth (Tip Type) | 6 |
| 20***70 | Tooth | 6 |
| 20***41 | Adapter (Welded) | 6 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Electrical System
| 01***12 | Bolt,(With Cylinder Cover) | 2 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 4 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Falling Object Protective Structure
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 19 |
| 01***40 | Bolt,(With Center Guard) | 24 |
| 01***50 | Bolt,(For Tbg/Abe Spec.) | 8 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Freon Gas Compressor
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Head Guard
| 01***80 | Bolt, Mount Tubes To Switch And Work Pumps | 6 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 6 |
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Light Work Bucket? 1.4m3? 1500mm
| 09***16 | Pin,(Except Japan) | 6 |
| 20***41 | Adapter (Welded) | 6 |
| 20***42 | Adapter (Welded) | 6 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Long Arm
| 01***35 | Bolt,R.H. Outside And L.H. Inside | 4 |
| 01***45 | Washer | 4 |
| 01***32 | Washer | 16 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Long Life Tooth
| 20***80 | Tooth | 0 |
| (0***6) | Pin | 0 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Machinery Compartment (Tbg Spec.)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***08 | Screw, Terminal | 4 |
| 01***25 | Bolt,See Fig. K4010-65a0 | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Marks And Plates (Tbg Spec.)
| 01***08 | Screw | 4 |
| 09***43 | Plate? Name,(Limited Supply) | 1 |
| 15***60 | Seat,Non Slip (Large) | 8 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Operator'S Cab (Tbg Spec.)
| 01***16 | Bolt (With Air Heater & Conditioner) | 4 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***10 | Screw,(For Lighter) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Over Load Warning Device (1/2) (Tbg Spec.)
| 01***25 | Bolt,Without Revolution Sensor | 3 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 1 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Over Load Warning Device (2/2) (Tbg Spec.)
| 01***55 | Bolt,(10m) | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
| 01***32 | Washer, (Without Emergency Steering) | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Pre-Fuel Filter
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Rear View Mirror
| 01***25 | Bolt,See Fig. K4010-65a0 | 6 |
| 08***16 | Mirror,(Tbg Spec.) | 1 |
| 08***23 | Mirror,(For Japan) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Revolving Frame (Tbg Spec.)
| 01***25 | Bolt,Without Revolution Sensor | 4 |
| 01***08 | Screw, Terminal | 1 |
| 01***20 | Screw (Not Illustrated) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Ripper
| 09***08 | Pin,(Without Pin Puller) | 1 |
| 19***31 | Point,Short?(Yellow) | 1 |
| 20***10 | Ripper Ass'Y | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Ripper Bucket? 0.8m3? 1200mm
| 09***08 | Pin,(Without Pin Puller) | 3 |
| 19***31 | Point,Short?(Yellow) | 3 |
| 20***10 | Bucket | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Rock Bucket? 1.02m3? 1170mm
| 09***16 | Pin,(Except Japan) | 4 |
| 20***41 | Adapter (Welded) | 4 |
| 20***42 | Adapter (Welded) | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Self Supply Pump (1/2)
| 07***20 | Hose | 1 |
| 07***59 | Clamp - Drain Hose | 2 |
| 20***30 | Wire | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Self Supply Pump (2/2)
| 20***30 | Pump | 1 |
| 20***30 | Case | 1 |
| 20***40 | Bracket | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Short Arm
| 07***00 | Fitting, Grease - Upper Hinge Pin | 1 |
| 07***00 | Fitting, Grease (Steering Cylinder) | 1 |
| 07***00 | Seal,Dust (Kit) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Slope Finishing Bucket
| 20***10 | Bucket | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Super Short Arm (2200mm)
| 01***45 | Bolt | 8 |
| 01***60 | Flat Washer - M20 (Hardened) | 8 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Three Shank Ripper
| 01***20 | Bolt | 3 |
| 01***13 | Nut,(For Adjustable Rod) | 6 |
| 09***08 | Pin,(Without Pin Puller) | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Trapezoidal Bucket
| 20***10 | Bucket,Trapezoidal | 1 |
| 20***20 | Plate (Welded) | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Trenching Bucket? 1.0m3? 1125mm
| 01***32 | Nut | 10 |
| 09***16 | Pin,(Except Japan) | 4 |
| 19***30 | Bolt,Shoe (Kit) | 10 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Vandalism Protection
| 07***00 | Cap,(For Vandalism Protection) | 1 |
| 20***30 | Key,(For Vandalism) | 1 |
| 20***10 | Cover | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Window Washer : Unit_02_of_02
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 2 |
| 01***12 | Screw,(Additional Sun Visor) | 2 |
| 01***13 | Washer,Spring(For Wiper Switch Earth) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts : Window Washer : Unit_01_of_02
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 2 |
| 01***12 | Screw,(Additional Sun Visor) | 2 |
| 01***13 | Washer,Spring(For Wiper Switch Earth) | 2 |
Optional Parts (Special Application Parts)
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : Additional Piping (Attachment Side) (1/2)
| 01***90 | Bolt,(Without Giant Ripper) | 24 |
| 01***35 | Bolt,R.H. Outside And L.H. Inside | 1 |
| 01***10 | Seat (Welded) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : Additional Piping (Attachment Side) (2/2)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
| 01***45 | Bolt, Mounting Bracket To Radiator (Top) | 8 |
| 01***90 | Bolt,(Without Giant Ripper) | 8 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : Additional Piping (Control Valve To Change Rotor Block)
| 01***00 | Bolt, Tube | 2 |
| 01***11 | Nut,(With Under Mirror) | 10 |
| 01***32 | Washer,(With Auto Emergency Steering) | 10 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : Additional Piping (Pilot Line)
| 01***80 | Bolt,(For Long Lever Control) | 3 |
| 01***06 | Seat (Welded) | 1 |
| 01***23 | Washer,(For Shipping) | 3 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : Cab Guard? For Additiional Piping
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 8 |
| 01***35 | Bolt | 4 |
| 01***09 | Seat,(Welded To Revolving Frame) | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : Change Rotor Block
| 01***30 | Bolt,(Not Used With Emergency Str.) | 9 |
| 01***05 | Bolt, Mount Tube | 8 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 17 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : Check Valve Block (For U.S.A.)
| 04***93 | Ball,Steel | 4 |
| 07***23 | O-Ring,(Tbg Spec.) | 1 |
| 07***23 | O-Ring,(Crusher?Other Att.For Ppc Con | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : Cold Weather Parts (A) (1/2) (For East Germany)
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : Cold Weather Parts (A) (2/2) (For East Germany)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 9 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : Control Pedal And Linkage (1/2)
| 01***16 | Bolt (With Air Heater & Conditioner) | 1 |
| 01***25 | Bolt,Without Revolution Sensor | 1 |
| 01***60 | Capscrew | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : Control Pedal And Linkage (2/2)
| 01***16 | Bolt (With Air Heater & Conditioner) | 1 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 1 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : Motor Drain Piping (For U.S.A.) : Unit_02_of_02
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
| 01***40 | Bolt,(With Service Valve R.H.) | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : Motor Drain Piping (For U.S.A.) : Unit_01_of_02
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
| 01***40 | Bolt,(With Service Valve R.H.) | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : P.O.C. Valve Piping (Check Valve To Contorol Valve) (For U.S
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
| 07***23 | O-Ring,(Crusher?Other Att.For Ppc Con | 24 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : P.O.C.Piping (For Propel Piping) (For U.S.A.)
| 07***23 | O-Ring,(Crusher?Other Att.For Ppc Con | 7 |
| 07***23 | O-Ring,(For 2nd Travel Speed) (Op) | 1 |
| 07***08 | Plug,See Fig. K4010-63a0 | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : P.O.C.Valve Piping (P.O.C.Valve To Check Valve) (For U.S.A.)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 5 |
| 01***65 | Bolt,(Except Japan) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 9 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : P.O.C.Valve Piping (Ramp To Valve ) (2/2) (For U.S.A.)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 3 |
| 01***11 | Nut,(With Under Mirror) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : P.O.C.Valve Piping (Swing Hold Brake Piping ) (For U.S.A.)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***35 | Screw | 8 |
| 01***35 | Screw | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : Pre-Heater
| 20***00 | Pre Heater Ass'Y | 1 |
| 20***10 | Heater | 1 |
| 20***20 | Nozzle Ass'Y | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : Propel Assist Valve (For U.S.A.)
| 01***32 | Washer,(Not Used With Emergency Str.) | 1 |
| 07***34 | O-Ring, O-Ring, Oil Level And Fill Plug | 1 |
| 07***23 | O-Ring,(For 2nd Travel Speed) (Op) | 5 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : Propel Sensing Valve (For U.S.A.)
| 01***00 | Bolt, Mount Back-Up Alarm | 6 |
| 01***16 | Bolt,(Without Cab) | 8 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 6 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : Selector Valve Control Linkage (For U.S.A.)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***50 | Bolt,(With Service Valve R.H.) | 4 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 6 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : Swing Hold Brake Switch (For U.S.A.)
| 01***25 | Screw - Antenna Mounting | 2 |
| 01***06 | Nut | 1 |
| 01***10 | Washer,Spring (For Engine Room Lamp) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : Swing Machinery (1/2) (For U.S.A.)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 3 |
| 01***55 | Bolt,(For Reinforced Type) | 21 |
| 01***45 | Bolt,(For L=529mm Pin) | 8 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : Swing Motor (For U.S.A.)(#11001-11386)
| 01***42 | Washer,Spring (For Pedal Steering), Washer-Spring | 8 |
| 07***55 | O-Ring,Front Accessory Drive | 2 |
| 07***35 | O-Ring, Upper Cooler Inlet And Outlet Ports | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : Swing Motor (For U.S.A.)(#11387-)
| 01***45 | Bolt | 8 |
| 01***42 | Washer,Spring (For Pedal Steering), Washer-Spring | 8 |
| 07***55 | O-Ring,Front Accessory Drive | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : Swing Motor Brake Valve (For U.S.A.)(#11001-11386)
| 01***25 | Bolt,Without Revolution Sensor | 4 |
| 01***70 | Bolt,(With Wear Guard) | 8 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : Swing Motor Brake Valve (For U.S.A.)(#11387-)
| 07***22 | O-Ring,Lubricating Oil Pipe | 1 |
| 07***22 | Ring, Back-Up | 2 |
| 07***34 | O-Ring, At Transmission Filter | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : Swing Motor Parking Brake (For U.S.A.)(#11001-11386)
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : Swing Motor Parking Brake (For U.S.A.)(#11387-)
| 01***55 | Bolt,(Not Used For Chip Dozer) | 8 |
| 01***48 | Washer,Spring (For Slag Handling), Washer-Spring | 8 |
| 01***12 | Washer | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : Swing Motor Shock-Less Valve (For U.S.A.)(#11001-11386)
| 07***05 | O-Ring (Kit) | 1 |
| 07***09 | O-Ring,(F4350-61a0 -33 ) | 1 |
| 07***16 | O-Ring,Suction And Relief Valve | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : Valve To From Swing Motor Piping (For U.S.A.)(#11387-)
| 01***11 | Nut,(With Under Mirror) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 01***32 | Washer, (Without Emergency Steering) | 24 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : Valve To/From Swing Motorpiping (For U.S.A.)(#11001-11386)
| 01***11 | Nut,(With Under Mirror) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 01***32 | Washer, (Without Emergency Steering) | 24 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : Valve To/From Swivel Joint Piping (For U.S.A.)
| 01***30 | Bolt,(For Mechanical Governor) | 16 |
| 01***50 | Bolt,(For Strengthened Cover) | 2 |
| 01***60 | Bolt, Tube To Oil Cooler | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Optional Parts (Special Application Parts) : Working Lamp (Cab Under Side) (For East Germany)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***45 | Bolt, Mounting Bracket To Radiator (Top) | 1 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 3 |
Revolving Frame And Cab
Komatsu : Pc300lc-2(S/N 11001-Up) : Revolving Frame And Cab : Heater
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Revolving Frame And Cab : Machinery Compartment (1/5)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 8 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 10 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Revolving Frame And Cab : Machinery Compartment (2/5)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 25 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 25 |
| 20***33 | Cover | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Revolving Frame And Cab : Machinery Compartment (3/5)
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 7 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 11 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Revolving Frame And Cab : Machinery Compartment (4/5)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 42 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 44 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Revolving Frame And Cab : Machinery Compartment (5/5)
| 01***20 | Bolt,(With Auto Emergency Steering) | 16 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 8 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 8 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Revolving Frame And Cab : Machinery Compartment (5/5)(#11001-11010)
| 01***20 | Bolt,(With Auto Emergency Steering) | 16 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 12 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 8 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Revolving Frame And Cab : Marks And Plates (English)
| 01***08 | Screw | 4 |
| 08***35 | Indicator,Dust (Japanese-English) | 1 |
| 09***00 | Plate? Safety,Lock Lever (With Lock Pin) | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Revolving Frame And Cab : Marks And Plates (English) (Fwc)
| 01***08 | Screw | 4 |
| 08***35 | Indicator,Dust (Japanese-English) | 1 |
| 09***00 | Plate? Safety,Lock Lever (With Lock Pin) | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Revolving Frame And Cab : Marks And Plates (German)
| 01***08 | Screw | 4 |
| 08***35 | Indicator,Dust (English-German) | 1 |
| 09***00 | Plate? Safety,Swing Lock Lever | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Revolving Frame And Cab : Marks And Plates (German) (Fwc)
| 01***08 | Screw | 4 |
| 08***35 | Indicator,Dust (English-German) | 1 |
| 09***00 | Plate? Safety,Swing Lock Lever | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Revolving Frame And Cab : Operator'S Cab (1/6)
| 01***12 | Bolt, Bolt,(No Need To Quick Shift) | 6 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 14 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Revolving Frame And Cab : Operator'S Cab (2/6)
| 01***16 | Screw, Mount Parking Lights | 2 |
| 01***20 | Screw | 3 |
| 01***13 | Washer,Spring(For Wiper Switch Earth) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Revolving Frame And Cab : Operator'S Cab (3/6)
| 01***20 | Bolt,(With Auto Emergency Steering) | 10 |
| 01***12 | Screw,(Additional Sun Visor) | 2 |
| 01***25 | Screw | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Revolving Frame And Cab : Operator'S Cab (4/6)
| 01***08 | Screw, Terminal | 2 |
| 01***08 | Screw | 6 |
| 01***12 | Screw,(Not Shown) (For Std Cab) | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Revolving Frame And Cab : Operator'S Cab (5/6)
| 01***20 | Bolt,(With Auto Emergency Steering) | 10 |
| 01***12 | Screw,(For Side Lamp) (Not Shown) | 3 |
| 01***12 | Screw,(With Articulate Indicator) | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Revolving Frame And Cab : Operator'S Cab (6/6)
| 01***16 | Screw,(P.O.C. Model) (Except Japan) | 6 |
| 01***25 | Screw | 2 |
| 01***12 | Screw | 3 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Revolving Frame And Cab : Operator'S Cab Frame
| 01***25 | Bolt,Without Revolution Sensor | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 10 |
| 01***75 | Bolt | 6 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Revolving Frame And Cab : Operator'S Cab Frame (E.J.) (Fwc)
| 01***25 | Bolt,Without Revolution Sensor | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 10 |
| 01***75 | Bolt | 6 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Revolving Frame And Cab : Operator'S Seat
| 01***20 | Bolt,(Large Capacity Type) (Std) | 5 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 4 |
| 01***10 | Nut,(Dust?Drip Proof? Trimming S.) | 8 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Revolving Frame And Cab : Revolving Frame(#11001-11280)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 12 |
| 01***65 | Bolt,(With Canvas Or Rops Canopy) | 6 |
| 01***08 | Screw, Terminal | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Revolving Frame And Cab : Revolving Frame(#11281-)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
| 01***65 | Bolt,(With Canvas Or Rops Canopy) | 6 |
| 01***08 | Screw, Terminal | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Revolving Frame And Cab : Under Cover
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 77 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 77 |
| 20***12 | Cover | 1 |
Swing And Control Systems
Komatsu : Pc300lc-2(S/N 11001-Up) : Swing And Control Systems : P.N.C. Piping (1/2)
| 07***34 | O-Ring,(Not Used When (B) Spec.) | 3 |
| 07***23 | O-Ring,(For 2nd Travel Speed) (Op) | 4 |
| 07***08 | Plug,See Fig. K4010-63a0 | 3 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Swing And Control Systems : P.N.C. Piping (2/2)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***40 | Bolt, Mount Master Brake Cylinder | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Swing And Control Systems : P.O.C. Valve
| 01***20 | Bolt,(With Auto Emergency Steering) | 10 |
| 01***06 | Nut, Regular Hexagon (M8-1.25) | 2 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 10 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Swing And Control Systems : P.O.C. Valve Piping (Aem And Swing) (E.J.) (Fwc)(#11387-)
| 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 | 12 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Swing And Control Systems : P.O.C. Valve Piping (Arm And Swing) (E.J.) (Fwc)(#11001-11386)
| 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 | 12 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Swing And Control Systems : P.O.C. Valve Piping (Boom And Bucket) (E.J.) (Fwc)
| 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 | 12 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Swing And Control Systems : P.O.C. Valve Piping (Pump To Valve) (1/2) (E.J.) (Fwc)
| 01***30 | Bolt,(For Mechanical Governor) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Swing And Control Systems : P.O.C. Valve Piping (Pump To Valve) (2/2) (E.J.) (Fwc)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Swing And Control Systems : P.O.C.Valve Piping (Arm And Swing)(#11001-11386)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
| 07***23 | O-Ring,(Crusher?Other Att.For Ppc Con | 12 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Swing And Control Systems : P.O.C.Valve Piping (Arm And Swing)(#11387-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
| 07***23 | O-Ring,(Crusher?Other Att.For Ppc Con | 12 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Swing And Control Systems : P.O.C.Valve Piping (Boom And Bucket)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
| 07***23 | O-Ring,(Crusher?Other Att.For Ppc Con | 12 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Swing And Control Systems : P.O.C.Valve Piping (Pump To Valve) (1/2)
| 01***30 | Bolt,(For Mechanical Governor) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Swing And Control Systems : P.O.C.Valve Piping (Pump To Valve) (2/2)
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 2 |
| 01***11 | Nut,(With Under Mirror) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Swing And Control Systems : Relief Valve
| 01***05 | Nut (Welded) | 1 |
| 07***32 | O-Ring,Drain Plug? Main Clutch | 1 |
| 07***15 | O-Ring,Regulator Valve | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Swing And Control Systems : Swing Circle(#11001-11280)
Komatsu : Pc300lc-2(S/N 11001-Up) : Swing And Control Systems : Swing Circle(#11281-)
| 01***40 | Bolt | 34 |
| 01***45 | Bolt,(For L=529mm Pin) | 36 |
| 01***60 | Washer,(Without Rops Guard? Canopy) | 70 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Swing And Control Systems : Swing Machinery (1/2) : Unit_01_of_02
| 01***30 | Bolt,(Not Used With Emergency Str.) | 3 |
| 01***55 | Bolt,(For Reinforced Type) | 21 |
| 01***45 | Bolt,(For L=529mm Pin) | 8 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Swing And Control Systems : Swing Machinery (1/2) : Unit_02_of_02
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***60 | Bolt,(For Ripper) | 12 |
| 01***70 | Bolt,Leaning Lock | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Swing And Control Systems : Swing Motor
| 01***42 | Washer,Spring (For Pedal Steering), Washer-Spring | 8 |
| 07***55 | O-Ring,Front Accessory Drive | 1 |
| 07***35 | O-Ring, Upper Cooler Inlet And Outlet Ports | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Swing And Control Systems : Swing Motor Brake Valve
| 01***70 | Bolt,(With Wear Guard) | 8 |
| 01***42 | Washer,Spring (For Pedal Steering), Washer-Spring | 8 |
| 07***70 | O-Ring (Kit) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Swing And Control Systems : Swing Motor Shock-Less Valve
| 07***05 | O-Ring (Kit) | 1 |
| 07***09 | O-Ring,(F4350-61a0 -33 ) | 1 |
| 07***16 | O-Ring,Suction And Relief Valve | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Swing And Control Systems : Valve Control Lever And Linkage (1/2)
| 01***40 | Bolt,(With Air Conditioner) | 4 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 2 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Swing And Control Systems : Valve Control Lever And Linkage (2/2)
| 01***25 | Bolt,Without Revolution Sensor | 8 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 6 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Swing And Control Systems : Valve Control Lever And Linkage? L.H. (E.J.) (Fwc)
| 01***40 | Bolt | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 3 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 5 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Swing And Control Systems : Valve Control Lever And Linkage? R.H. (1/2) (E.J.) (Fwc)
| 01***40 | Bolt | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***23 | Plain Washer | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Swing And Control Systems : Valve Control Lever And Linkage? R.H. (2/2) (E.J.) (Fwc)
| 01***20 | Bolt,(With Auto Emergency Steering) | 1 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 10 |
| 01***16 | Washer,Radio Controlled Slag Handling | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Swing And Control Systems : Valve To/From Swing Motor Piping(#11001-11386)
| 01***11 | Nut,(With Under Mirror) | 8 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
| 01***32 | Washer, (Without Emergency Steering) | 24 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Swing And Control Systems : Valve To/From Swing Motor Piping(#11387-)
| 01***11 | Nut,(With Under Mirror) | 8 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
| 01***32 | Washer, (Without Emergency Steering) | 24 |
Tool And Kit
Komatsu : Pc300lc-2(S/N 11001-Up) : Tool And Kit : Tool
| 07***00 | Pump,Grease | 1 |
| 07***02 | Cartridge,Grease | 1 |
| 07***45 | Nozzle, Grease Pump (Non-Flexible Type) | 1 |
Travel And Final Drive
Komatsu : Pc300lc-2(S/N 11001-Up) : Travel And Final Drive : Final Drive Case And Sprocket
| 01***45 | Bolt,(For Travel Motor) (Not Show) | 22 |
| 01***65 | Bolt | 40 |
| 01***95 | Bolt | 10 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Travel And Final Drive : Final Drive Gear
| 01***60 | Bolt,Reamer | 24 |
| 01***16 | Nut | 24 |
| 01***08 | Washer | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Travel And Final Drive : Motor Drain Piping(#11001-11386)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
| 01***40 | Bolt,(With Service Valve R.H.) | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Travel And Final Drive : Motor Drain Piping(#11387-)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
| 01***40 | Bolt,(With Service Valve R.H.) | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Travel And Final Drive : Propel Control Lever And Linkage
| 01***16 | Bolt (With Air Heater & Conditioner) | 1 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Travel And Final Drive : Propel Control Lever And Linkage (1/2) (E.J.)(#11001-11426)
| 01***16 | Bolt (With Air Heater & Conditioner) | 1 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 4 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Travel And Final Drive : Propel Control Lever And Linkage (1/2) (E.J.)(#11427-)
| 01***16 | Bolt (With Air Heater & Conditioner) | 1 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 4 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Travel And Final Drive : Propel Control Lever And Linkage (2/2) (E.J.)
| 01***16 | Bolt (With Air Heater & Conditioner) | 1 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Travel And Final Drive : Propel Motor (1/2)
| 04***30 | Seal, Dust | 1 |
| 07***23 | O-Ring; Was 07002-10823, O-Ring,(Not Shown) | 1 |
| 07***07 | Plug,(Tbg Spec.), Plug; Was 07040-10807 | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Travel And Final Drive : Propel Motor (2/2)
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 12 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 12 |
| 04***20 | Pin,Dowel (Welded) | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Travel And Final Drive : Swivel Joint
| 01***35 | Bolt,(For Position Fixing) | 4 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 4 |
| 04***30 | Ring, Retaining | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Travel And Final Drive : Swivel Joint To/From Propel Motor Piping(#11001-11161)
| 01***40 | Bolt,(With Air Conditioner) | 8 |
| 01***50 | Bolt (Kit) | 16 |
| 01***55 | Bolt,(10m) | 8 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Travel And Final Drive : Swivel Joint To/From Propel Motor Piping(#11162-)
| 01***40 | Bolt,(With Air Conditioner) | 8 |
| 01***50 | Bolt (Kit) | 16 |
| 01***55 | Bolt,(10m) | 8 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Travel And Final Drive : Valve To/From Swivel Joint Piping
| 01***30 | Bolt,(For Mechanical Governor) | 16 |
| 01***50 | Bolt,(For Strengthened Cover) | 2 |
| 01***60 | Bolt, Tube To Oil Cooler | 1 |
Under Carriage
Komatsu : Pc300lc-2(S/N 11001-Up) : Under Carriage : Carrier Roller
| 01***30 | Bolt,(For France Noise Suppression) | 4 |
| 01***75 | Bolt, Hanger Bearing Mounting | 8 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Under Carriage : Front Idler(#11001-11079)
| 01***35 | Bolt, Mounting - Flywheel Housing End | 16 |
| 01***13 | Nut - Cylinder Mounting | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 16 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Under Carriage : Front Idler(#11080-)
| 01***35 | Bolt, Mounting - Flywheel Housing End | 16 |
| 01***13 | Nut - Cylinder Mounting | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 16 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Under Carriage : Recoil Spring
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***30 | Bolt,(For Rubber Shoe) | 2 |
| 01***00 | Bolt - Cover Mounting | 16 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Under Carriage : Track Frame(#11001-11280)
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 6 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 3 |
| 01***50 | Bolt,(For Tbg/Abe Spec.) | 16 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Under Carriage : Track Frame(#11281-)
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 6 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***50 | Bolt,(For Tbg/Abe Spec.) | 16 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Under Carriage : Track Roller
| 01***30 | Bolt,(For France Noise Suppression) | 12 |
| 01***65 | Bolt,L.H | 56 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 12 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Under Carriage : Track Shoe
| 01***26 | Nut? Shoe (Kit) | 408 |
| 14***24 | Link,Track? L.H | 102 |
| 14***34 | Link,Track? R.H | 102 |
Work Equipment
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment : Arm
| 01***45 | Bolt | 8 |
| 01***60 | Flat Washer - M20 (Hardened) | 8 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment : Boom
| 01***12 | Bolt, Bolt,(No Need To Quick Shift) | 4 |
| 01***45 | Bolt,(For Travel Motor) (Not Show) | 8 |
| 01***40 | Bolt | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment : Bucket 1.2m3? 1300mm
| 01***32 | Nut | 10 |
| 09***16 | Pin,(Except Japan) | 5 |
| 19***30 | Bolt,Shoe (Kit) | 10 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment : Link
| 01***19 | Nut - M24 | 8 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 4 |
| 20***80 | Seal,Dust (Kit) | 6 |
Work Equipment Control System
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Arm Cylinder
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 4 |
| 01***60 | Bolt, Mount Tube To Switch Pump | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Arm Piping (Chassis Side) (1/2)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***60 | Bolt, Mount Tube To Switch Pump | 8 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Arm Piping (Chassis Side) (2/2)
| 01***60 | Bolt, Mount Tube To Switch Pump | 8 |
| 01***32 | Washer, (Without Emergency Steering) | 16 |
| 04***12 | Ring,Split, Ring-Snap | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Boom Cylinder(#11001-11097)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 4 |
| 01***60 | Bolt, Mount Tube To Switch Pump | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Boom Cylinder(#11098-)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Boom Piping (Chassis Side)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
| 01***70 | Bolt, Accumulator Mounting Bracket | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Boom? Arm And Bucket Cylinder Piping
| 01***50 | Bolt,(For Strengthened Cover) | 14 |
| 01***60 | Bolt, Tube To Oil Cooler | 4 |
| 01***36 | Wahser-Spring, Washer,Spring (Without Towing Winch) | 8 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Bucket Cylinder
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***45 | Bolt,(For Power Tilt Mech Angle) | 4 |
| 01***60 | Bolt, Mount Tube To Switch Pump | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Bucket Piping (Chassis Side)
| 01***60 | Bolt, Mount Tube To Switch Pump | 8 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
| 01***32 | Washer, (Without Emergency Steering) | 16 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Control Valve (F.L.H.P.A-L.B-H.A.S.)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 1 |
| 01***20 | Bolt, Mount Spool Covers | 14 |
| 01***25 | Bolt | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Control Valve (F.R.H.P.B-L.B-L.A.S.)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 1 |
| 01***20 | Bolt, Mount Spool Covers | 14 |
| 01***25 | Bolt | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Control Valve (For Arm High)
| 01***20 | Bolt, Mount Spool Covers | 4 |
| 07***32 | O-Ring,Drain Plug? Main Clutch | 1 |
| 07***35 | O-Ring,(F4350-61a0 -32 ) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Control Valve (For Bucket High)
| 01***20 | Bolt, Mount Spool Covers | 4 |
| 07***32 | O-Ring,Drain Plug? Main Clutch | 1 |
| 07***35 | O-Ring,(F4350-61a0 -32 ) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Hydraulic Pump (1/2)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***25 | Bolt, Seal Cover Mounting | 8 |
| 01***30 | Screw | 8 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Hydraulic Pump (2/2)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 8 |
| 04***15 | Ring, Snap | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Hydraulic Pump And P.C.Regulator Valve (F.P.A.A.) (1/3)
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***90 | Bolt, Fan Mounting | 4 |
| 01***10 | Bolt, Fan Mounting | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Hydraulic Pump And P.C.Regulator Valve (F.P.A.A.) (2/3)
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***10 | Bolt, Fan Mounting | 4 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 12 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Hydraulic Pump And P.C.Regulator Valve (F.P.A.A.) (3/3)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 10 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Hydraulic Tank(#11001-11196)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Hydraulic Tank(#11197-)
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Jet Sensor
| 01***65 | Screw | 4 |
| 01***05 | Nut,(For Air Conditioner Less), Nut | 1 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Pump To Valve Piping (1/3)
| 01***30 | Bolt,(For Mechanical Governor) | 16 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***30 | Bolt, Tension Adjustment | 4 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Pump To Valve Piping (2/3)
| 01***30 | Bolt,(For Mechanical Governor) | 4 |
| 01***35 | Bolt,(For Position Fixing) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Pump To Valve Piping (3/3)
| 01***30 | Bolt,(For Mechanical Governor) | 16 |
| 01***55 | Bolt,(10m) | 8 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Relief Valve
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
| 07***16 | O-Ring | 1 |
| 07***16 | Ring, Back-Up | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Return And Oil Cooler Piping (1/3)
| 01***20 | Screw | 4 |
| 01***11 | Nut,(With Under Mirror) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Return And Oil Cooler Piping (2/3)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***95 | Bolt, Mount Tube To Transmission | 2 |
| 01***11 | Nut,(With Under Mirror) | 8 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Return And Oil Cooler Piping (3/3)(#11001-11003)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 6 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Return And Oil Cooler Piping (3/3)(#11004-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***70 | Bolt, Mount Bracket And Oil Inlet Tube, Bolt | 2 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Safety Valve
| 07***34 | O-Ring,Transmission And Steering Case | 1 |
| 70***00 | Valve Ass'Y | 1 |
| 70***20 | O-Ring | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Servo Cylinder (1/4)
| 01***80 | Bolt | 4 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 4 |
| 07***09 | O-Ring,(F4350-61a0 -33 ) | 3 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Servo Cylinder (2/4)
| 01***35 | Bolt,(For Position Fixing) | 4 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 4 |
| 07***09 | O-Ring,(F4350-61a0 -33 ) | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Servo Cylinder (3/4)
| 07***23 | O-Ring,(F4320-61a0 -29 ) | 2 |
| 07***07 | Plug,Housing No.2?3?4?5?6 | 2 |
| 70***00 | Nc Valve Ass'Y | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Servo Cylinder (4/4)
| 70***00 | Co Valve Ass'Y | 1 |
| (7***1) | Servo Cylinder A | 1 |
| (7***0) | Hydraulic Pump Ass'Y | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Shuttle Valve (Assist For Swing)
| 01***25 | Bolt,Without Revolution Sensor | 2 |
| 01***50 | Bolt (Kit) | 2 |
| 01***40 | Bolt | 8 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Slow Return Valve (Variable Type)
| 01***55 | Bolt, Mount Lh Bracket | 4 |
| 01***65 | Bolt, Mount Radiator To Frame (Bottom) | 4 |
| 01***36 | Wahser-Spring, Washer,Spring (Without Towing Winch) | 8 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Suction And Safety Valve : Unit_01_of_03
| 07***34 | O-Ring,Transmission And Steering Case | 1 |
| 07***34 | O-Ring,See Fig. K4010-65a0 | 1 |
| 70***70 | Spring | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Suction And Safety Valve : Unit_02_of_03
| 07***34 | O-Ring,Transmission And Steering Case | 1 |
| 07***34 | O-Ring,See Fig. K4010-65a0 | 1 |
| 70***70 | Spring | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Suction And Safety Valve : Unit_03_of_03
| 07***34 | O-Ring,Transmission And Steering Case | 1 |
| 07***34 | O-Ring,See Fig. K4010-65a0 | 1 |
| 70***70 | Spring | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Suction Valve
| 07***34 | O-Ring,Transmission And Steering Case | 1 |
| 07***34 | O-Ring,(F2310-59a0 -4 ) | 1 |
| 70***70 | Spring | 1 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : T.C.C. Valve
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Tank To Pump Piping (1/2)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 6 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 2 |
| 01***40 | Bolt,(With Service Valve R.H.) | 8 |
Komatsu : Pc300lc-2(S/N 11001-Up) : Work Equipment Control System : Tank To Pump Piping (2/2)
| 01***40 | Bolt,(With Service Valve R.H.) | 4 |
| 01***95 | Bolt, Mount Tube To Transmission | 8 |
| 01***55 | Bolt,(For Reinforced Type) | 8 |
PC300LC-2(S/N 11001-UP) serial number reference
On this generation the ID plate sits on the front of the machine between the two hydraulic arm mounts, on a flat surface just below the cab, usually under a Komatsu decal. Read the stamped digits as a plain serial number (no letters) and check it against the 11001-UP block to confirm it belongs to the PC300-2/PC300LC-2 family rather than an earlier PC300-1 (10001-UP) or later PC300-3 (12001-UP) machine. A Cummins N855-family (NT855) tag on the engine block is a secondary confirmation point, but verify the exact engine serial start with your dealer since it is not consistently documented across sources.
| Prefix | Identifies | Notes |
|---|---|---|
| 11001-UP (no alpha prefix) | PC300-2 and PC300LC-2, standard and long-undercarriage (wide-track) variants, shared block | This family runs on one plain numeric serial block starting at 11001, with no alpha PIN prefix. The factory shop manual covers PC300-2 (standard undercarriage) and PC300LC-2 (long-undercarriage, wide-track) together under this same S/N 11001-UP range, so the LC designation marks an undercarriage/counterweight variant, not a separate serial block. Engine fitted across this range is a Cummins-built N855-family (NT855) diesel; confirm the exact engine arrangement code and serial start against the machine's own engine tag rather than assuming a fixed cutover number. This generation predates Komatsu's later alpha-prefix PIN scheme seen on newer PC300 dash-number machines, so expect a plain digit serial on the machine plate. Production falls in the mid-1980s window, after PC300-1 (10001-UP) and ahead of PC300-3 (12001-UP). Confirm exact build year and any regional sub-variant with your dealer using the full PIN. |
Frequently asked questions
What engine does the Komatsu PC300LC-2 (S/N 11001-up) use?
A Cummins-built N855/NT855-family inline-six diesel. It's mechanically governed with a PT (pressure-time) gear-driven fuel system and has no electronic engine controls, unlike the Komatsu S6D125 fitted from the PC300-3 onward.
What is the operating weight of the PC300LC-2 (S/N 11001-up)?
An exact figure for this specific serial range isn't published in available literature. It falls in the general 30-tonne class typical of the PC300 family; actual weight varies with undercarriage, counterweight, and front-end attachment. Verify against the dataplate or shop manual for a specific unit.
What replaced the Komatsu PC300LC-2 (S/N 11001-up)?
The PC300-3 (S/N 12001-up), which begins around 1988 and switches from the Cummins mechanical diesel to Komatsu's own S6D125 engine.
What PC300LC-2(S/N 11001-UP) owners discuss
How well documented is the PC300LC-2 (S/N 11001-UP) in owner and mechanic discussion online?
Barely at all under its exact name. This serial range sits in a short mid-1980s window between the PC300-1 (ending around 1984) and the PC300-3 (starting around 1988), and it predates Komatsu's alpha-prefix PIN system. Most public chatter about "PC300" excavators centers on later, far more common generations (5/6/7-series) that run Komatsu's own S6D125/SAA6D125 diesel, not this one. Anything specific to the 11001-UP block and its Cummins-built N855/NT855 engine is thin on the ground. That's genuine obscurity, not proof the machine wasn't sold — OEM documentation and parts references still carry it under this exact serial band. The LC tag on this block denotes the long-undercarriage/wide-track configuration built on the same serial run as the standard PC300-2, not a separate model line.
What's the most commonly reported hydraulic/powertrain complaint on excavators of this generation?
A sudden total loss of swing while every other function (boom, stick, bucket, travel) keeps working normally. Field troubleshooting on 300-series machines of this era generally goes in this order: pilot pressure to the swing spool first, then the spool itself for sticking or contamination, then the swing lock/brake solenoid and valve (many machines in this class hold the swing brake set until pilot pressure confirms a swing command, as an anti-drift feature), then the brake release circuit. A stuck or contaminated swing spool, or a brake that isn't mechanically releasing even with good oil flow, are the two most cited culprits — not the swing motor itself. Pulling the return filter for metal or glitter is a standard next step if the spool and brake check out clean, since it points toward pump or valve-body wear feeding contamination downstream. A swing brake fault can let the house drift or fail to hold on a slope, so have your dealer or a qualified hydraulic tech verify brake release and holding function before the machine goes back into service.
Are there known engine quirks tied to the Cummins-built diesel used in this era of PC300?
The Cummins-built N855/NT855 in this vintage is a mechanically governed, pre-electronic diesel using Cummins' PT (pressure-time) fuel system — no injection-pump timing to chase, but the low-pressure gear pump and fuel supply plumbing are sensitive to air intrusion; a machine that's sat idle can lose prime and refuse to start until properly bled. On the block side, engines from this Big Cam-era 855 family built before roughly 1986 are a known weak point for cylinder-liner counterbore cracking, where a crack forms between a head coolant passage and the counterbore, letting coolant migrate past the liner flange into the cylinder (and often leak externally too). Cam lobe wear and pitting on the earlier small-diameter camshaft design is the other commonly cited wear point for this generation. Given the age of any surviving 11001-UP machine, check for coolant-in-oil and review liner/head service history rather than assuming a clean bill of health from smooth idle alone.
What undercarriage wear pattern should an owner expect on a machine this size and age?
No data specific to this exact model turns up, but the wear pattern is consistent for excavators in this weight class. Track rollers and carrier rollers are usually the first components to show wear, typically good for a few thousand hours under normal dirt/grade work and considerably less in rock or abrasive quarry duty. Idlers and sprockets follow, and track pad/link wear accelerates quickly once tension drifts outside spec — both over-tight and over-loose tracks promote premature wear. On the LC (long/wide-track) configuration, the extra ground contact tends to spread wear more evenly than a standard-gauge undercarriage of similar weight, but actual component life still comes down to tension maintenance and ground conditions more than the LC option itself.
Are there common electrical or sensor problems reported for this machine?
This machine predates electronic engine and hydraulic control entirely, so there's no fault-code or sensor-network layer to fail the way later PC300 generations have. What does show up on machines this age is straightforward: alternator and starter wear, corroded or brittle wiring insulation at connectors and anywhere the harness flexes or chafes against the frame, and gauge-sender drift (oil pressure and coolant temp senders) giving false readings before an actual fault exists. If the machine still has its factory ether cold-start aid, treat it with respect — metering has to stay light and it should only fire during cranking; over-priming a big mechanically-injected diesel with ether risks detonation damage to pistons and rings. Have your dealer or a qualified diesel tech verify starting-aid metering and wiring before relying on it in cold weather.
What about the main hydraulic pump — any wear symptoms to expect at high hours?
For the main pump, the failure pattern reported across this size and age of excavator is internal wear in the piston-and-swash-plate group: worn piston shoes, scored swash plates, and port-plate wear driving up internal leakage. Symptoms show up as slow cycle times, weak digging force, sluggish lift, and delayed response under load, often with a whine (bearing wear) or grinding (piston shoe or swash-plate damage) audible at the pump compartment. Reported service life for main pumps in this class runs roughly 6,000-8,000 hours before this kind of wear becomes limiting, though contaminated oil or running the pump without proper case-drain flow shortens that considerably. On a machine this old, don't assume a quiet pump is a healthy one — check case-drain flow and relief pressures rather than relying on noise alone.
What should a buyer check before purchasing a used PC300LC-2 (S/N 11001-UP)?
Same fundamentals as any used excavator this size, plus a few vintage-specific items. Confirm the serial number actually falls in the 11001-UP block before trusting any parts lookup or spec sheet — the bare PC300 number was reused across several unrelated generations with different engines. Pull the engine data plate and confirm it's the Cummins-built N855/NT855 and not a later Komatsu S6D125-family swap; engine swaps on machines this old aren't unheard of. On the engine, ask about head/liner history (counterbore cracking is a known weak point on pre-1986-built 855 blocks) and check for coolant-in-oil or white exhaust smoke. On hydraulics, cycle every function including swing, listen for pump noise, and check the return filter for metal. On the undercarriage, check track tension and pad/roller/idler wear against spec, and inspect structural welds at the boom-to-stick and stick-to-bucket pins. Finally, factor in parts sourcing: a machine this old and this obscure will rely mostly on aftermarket and salvage supply rather than an active dealer parts counter, so price any engine or hydraulic rebuild accordingly before committing. Have your dealer or an independent inspector verify structural and hydraulic condition in person before finalizing purchase.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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