Komatsuhydraulic excavatorsmall ( - pc90)
Komatsu PC12R-8(S/N 10001-UP)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu PC12R-8 is a sub-2-tonne mini excavator, part of Komatsu's compact R-series line built for tight-access residential and utility digging. Komatsu built the (S/N 10001-Up) production run from 1999 to 2005, powered by the Komatsu 3D68E, a 3-cylinder naturally aspirated diesel rated near 10.3-10.6 kW (13.9-14.3 hp) at 2450 rpm. Operating weight runs 1.3 to 1.48 t (2,866-3,263 lb) depending on configuration: canopy or cab, dozer blade, and bucket fitted. It shares its engine family and several undercarriage and hydraulic components with siblings PC05-7, PC10R-1, and PC12UU-2, and with the slightly larger PC15R-8, and Komatsu also sold a higher-spec PC12R-8HS variant alongside the standard machine. Rubber tracks, an optional blade, and a choice of boom/stick reach were configurations offered on this class.
Komatsu documented the (S/N 10001-Up) population in its own dedicated shop and parts manuals, separate from other PC12R-8 serial ranges built for different regional or configuration channels. Treat those as distinct populations rather than direct substitutes when sourcing parts or service data. After the R-series ended production in the mid-2000s, Komatsu carried its sub-2-tonne class forward into the MR minimal-tail-swing range, which reuses several final-drive, roller, and hydraulic pump-coupling parts from the R-series it followed. In today's used and parts market, the PC12R-8 remains relevant as an affordable, easy-to-transport machine for landscaping, small utility trenching, and confined-space work where a 1-tonne-class footprint outperforms a full-size mini excavator. Parts support leans on that shared-component family across the small Komatsu R and UU line, which keeps final drives, travel motors, and undercarriage parts available well after the model's own production ended.
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 PC12R-8(S/N 10001-UP) specifications
Engine
| Engine model | Komatsu 3D68E-N3FB, 3-cylinder diesel |
| Type | Low-emission 4-cycle diesel, swirl pre-combustion chamber, naturally aspirated |
| Displacement | 784 cm3 (47.9 cu in) |
| Bore x stroke | 68 x 72 mm (2.68 x 2.83 in) |
| Cylinders | 3 |
| Max (gross) power | 12.7 kW / 17 hp |
| Rated (net) power, SAE J1349 | 10.6 kW / 14.3 hp at 2,450 rpm |
| Rated (net) power, 80/1269/EC | 10.3 kW / 14.0 hp at 2,450 rpm |
| Max torque | 49 Nm (36 lb-ft) at 1,800 rpm |
| Cooling system | Liquid-cooled (water) |
| Emissions | Factory-rated low-emissions diesel for its production era (1999-2005); predates modern Tier/Stage labeling, exact tier not documented |
Weights
| Operating weight, rubber shoes (standard) | 1,475 kg (3,252 lb) |
| Operating weight, steel shoes (optional) | 1,550 kg (3,417 lb) |
| Heated cab option | +130 kg (+287 lb) over base configuration |
| HS variable-undercarriage option | +80 kg (+176 lb) over base configuration |
| Operating weight range across configurations | 1,475-1,675 kg (3,252-3,693 lb) depending on shoe type, cab, and undercarriage option; other published figures list a lower approx. 1,300 kg (2,866 lb) weight -- varies by source |
| Ground pressure | approx. 0.3 kg/cm2 (28-29 kPa / 4.1-4.3 psi), standard undercarriage |
| Transport weight | not separately published; ships at operating weight, no disassembly required for standard transport |
Dimensions
| Overall transport length | 3.63 m (880 mm arm) to 3.65 m (1,130 mm arm) [11'11" to 11'12"] |
| Overall transport width (track gauge), standard | 1.00 m (3'3") |
| Overall transport width, HS extended undercarriage | 1.32 m (4'4") |
| Overall transport height (to canopy top) | 2.23 m (7'4") |
| Tail swing radius | 1.07 m (3'6") |
| Track shoe width | 230 mm (9.1 in), rubber standard, steel optional |
| Ground clearance | approx. 0.21 m (8.1-8.3 in) |
| Undercarriage/track length on ground | approx. 1.0-1.1 m (3'3"-3'7"), not confirmed on the factory sheet -- verify with your dealer |
Performance
| Max digging depth | 2.00 m (880 mm arm) / 2.18 m (1,130 mm arm) [6'7" / 7'2"] |
| Max reach at ground level | 3.45 m (880 mm arm) / 3.69 m (1,130 mm arm) [11'4" / 12'1"] |
| Max dump/loading height | 2.37 m (880 mm arm) / 2.52 m (1,130 mm arm) [7'9" / 8'3"] |
| Max cutting height | 3.37 m (880 mm arm) / 3.52 m (1,130 mm arm) [11'1" / 11'7"] |
| Swing speed | approx. 8.7-9 rpm |
| Max travel speed | reported 2-4 km/h (1.2-2.5 mph); the factory transmission spec and other published figures disagree -- varies by source |
| Max drawbar (traction) force | 11.3 kN / 1,130 daN (2,546 lbf) |
| Gradeability | not documented for this exact serial range -- verify with your dealer |
Forces
| Bucket digging (breakout) force, ISO 6015 | 13.2 kN / 1,320 daN (2,970 lbf), same for 880 mm and 1,130 mm arm |
| Arm/stick digging force, ISO 6015, standard 880 mm arm | 8.25 kN / 825 daN (1,855 lbf) |
| Arm/stick digging force, ISO 6015, long 1,130 mm arm | 7.06 kN / 706 daN (1,587 lbf) |
Service capacities (summary)
| Fuel tank | 20 L (5.3 US gal) |
| Hydraulic tank/system | 13-23 L (3.5-6.1 US gal) depending on source; the factory refill chart lists 23 L, other published figures list approx. 13 L -- varies by source |
| Engine oil (with filter) | 2.8 L (0.74 US gal / 3.0 US qt) |
| Cooling system | 3.2 L (0.85 US gal) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
PC12R-8(S/N 10001-UP) fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | approx. 3.0 L (0.8 US gal) | Komatsu Genuine engine oil (EO). Grade selected by ambient temperature per the viscosity chart: SAE 10W in cold climates, SAE 10W-30 for general/wide-range use, SAE 15W-40 or SAE 30 in warm climates. Meets API CD/CF-4 or Komatsu EO spec. This engine (3D68E family) is shared with the PC15R-8; treat this figure as a close estimate and confirm against the PC12R-8-specific chart, since capacity can vary slightly by configuration. |
| Cooling system | approx. 3.4 L (0.9 US gal) total system; approx. 3.2 L (0.85 US gal) on drain-and-refill | Komatsu Genuine Super Coolant (AF-NAC), a pre-mixed ethylene-glycol antifreeze and anti-corrosion coolant. Mix ratio/freeze protection level is selected for the regional climate. Same 3D68E-family engine as the PC15R-8; figure carries over from that shared engine data and should be confirmed against the PC12R-8 chart. |
| Fuel tank | 20 L (5.3 US gal) | No. 2-D diesel fuel (ASTM D975 or equivalent local-grade). Use No. 1-D or a winter-grade diesel blend in cold weather to prevent fuel waxing. |
| Hydraulic system / hydraulic tank | 13 L (3.5 US gal) | Komatsu Genuine hydraulic oil (HO), ISO VG 46 equivalent. Komatsu also offers a lower-viscosity HO grade for cold-climate operation; grade is matched to ambient temperature per the OMM chart. |
| Final drive / travel device (each) | not documented for this exact serial range in available sources | Komatsu Genuine powertrain oil (TO series) per the factory lubricant chart, or an equivalent gear oil of the specified grade. Verify exact type and refill quantity against the PC12R-8 OMM or with a Komatsu dealer. |
| Swing drive | not documented for this exact serial range in available sources | On this machine class the slew drive may share the hydraulic circuit rather than use a separate gear-oil sump; verify with the OMM or a Komatsu dealer whether a standalone swing-drive fill point applies to this serial range. |
| Grease (spec only) | n/a (grease point lubrication, not a fill volume) | Komatsu Genuine multipurpose lithium EP grease (G2-LI) at boom, arm, bucket linkage, and swing-bearing pin/bushing points, applied at the scheduled grease interval. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Komatsu PC12R-8(S/N 10001-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 PC12R-8(S/N 10001-UP) beyond the schedule
Predictive Maintenance & Fluid Analysis
The 3D68E's small oil sump and 13-liter (3.5-gal) hydraulic tank give this machine little buffer against contamination. Sample engine and hydraulic oil at every 250-hour change rather than waiting for symptoms. Metal in the travel-motor or final-drive gear oil at the 1000-hour drain is the earliest warning of planetary wear. Watch hydraulic return-filter condition closely. The CLSS load-sensing circuit is sensitive to particulate buildup and shows sluggish boom or swing response before a component actually fails.
Corrective & Common Repairs
Expect final-drive and travel-motor seal leaks as the most common repair on this class, especially on machines that worked wet or muddy sites. Bucket and arm cylinder seals wear from the tight-radius digging typical of confined residential jobs. The 3D68E's glow plug circuit is a frequent cold-start complaint on older units. Test glow plug resistance before condemning the injection pump. Hydraulic hoses routed through the compact engine bay chafe against the frame over time and should be checked at every service.
Overhaul & Rebuild Points
Undercarriage wear drives most rebuild decisions. The narrow rubber tracks, rollers, and idlers see high load per tonne on a machine this compact, so measure wear early rather than running tracks to failure. Engine overhaul points center on valve clearance and injector condition, checked at the 2000-hour service. Swing motor and gear case backlash should be inspected at major rebuild intervals alongside the final drive, since all three share the same CLSS hydraulic supply and wear together under continuous duty.
Seasonal & Environment Servicing
Cold climates stress the 3D68E's glow plug system and its coolant. Confirm coolant protection and glow plug function before winter layup, since restarting a cold 3-cylinder diesel with weak glow plugs is a common seasonal complaint. Rubber tracks stiffen and crack in sustained cold, so inspect for surface checking before spring work resumes. In hot, dusty environments the compact air cleaner loads faster than on larger machines. Shorten the inspection interval on dusty demolition or landscaping sites to avoid airflow restriction.
PC12R-8(S/N 10001-UP) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| YM171051-92760 | Wrench,Fuel Filter? Water Separator | Fuel system service | Check fitment → |
| 20T-98-72410 | Plate? Caution,Engine Fuel Filter | Fuel system service | Check fitment → |
| YM119332-92751 | Wrench,(For Engine Oil Filter) | Lubrication service | Check fitment → |
| 08036-01414 | Clip,(For Add.Filter)(Except Japan) | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
PC12R-8(S/N 10001-UP) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| Engine Oil Pressure Warning Lamp | Oil-can pictograph lights at key-on for a bulb check and must go out once the engine starts; it relights if lubrication pressure drops below the safe limit. | Low engine oil level, clogged oil filter or strainer, worn oil pump, or a faulty oil pressure switch. | Stop the engine at once, check oil level and top up, look for external leaks, then check the pressure switch and wiring before restarting. |
| Engine Coolant Temperature Warning Lamp | Thermometer pictograph flashes briefly at key-on as a self-check, then lights steady if coolant temperature goes above the safe operating range. If this lamp and the oil pressure lamp light together, the manual treats it as an oil pressure fault only. | Low coolant level, dirty or blocked radiator fins, failed thermostat, or a loose/broken fan belt. | Idle the engine down and shut off, let it cool, check coolant level and clean the radiator before resuming work. |
| Generator (Charge) Warning Lamp | Battery pictograph lights when the alternator is not charging the battery circuit. | Slipping or broken fan/alternator belt, failed alternator, or a loose/corroded connection in the charging circuit. | Check belt condition and tension, inspect battery terminals and wiring, and have the alternator tested if the lamp stays on with the engine running. |
| Pre-heating (Glow Plug) Indicator Lamp | Coil pictograph lights while the glow plugs preheat the combustion chambers for cold starting; it is a ready-to-start cue, not a fault lamp, under normal operation. | If the lamp fails to light, flickers, or the preheat cycle runs abnormally long, suspect a faulty glow plug relay, worn glow plugs, or a wiring/fuse fault. | Wait for the lamp to go out before cranking; if the preheat cycle looks wrong, check the glow plug relay, glow plugs, and their wiring and fuses. |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
PC12R-8(S/N 10001-UP) attachments & work tools
Buckets
Factory bucket capacity for this micro excavator runs about 0.03-0.06 m³ (1.1-2.1 cu ft) on a standard bucket roughly 350mm (14in) wide. Aftermarket GP digging buckets for this size class cover a width range of about 150-600mm (6-24in), plus a wider 900mm (36in) grading/ditching bucket. Buckets in this class pin directly to the arm/link - no quick-coupler as standard equipment. Dedicated heavy-duty rock buckets aren't commonly offered at this weight class; attachments here are mostly GP or ditching profile. Exact pin diameter isn't documented for this serial range - confirm against the physical arm pin or with your dealer before ordering.
Hydraulic hammers
This is a roughly 1.3-1.5 tonne micro-excavator class machine. Breaker weight should stay near 7-15% of operating weight, which puts the matched hammer in the compact/micro class - typically an operating weight in the 40-80kg bracket (aftermarket units built for the 0.8-1.5/1.8 tonne excavator bracket run up to about 80kg). These micro hammers work at roughly 80-110 kg/cm² (about 80-110 bar) and demand about 10-30 L/min, which sits within this machine's stock hydraulic output - no mid-size or full-size breaker class fits this chassis.
Quick couplers
Factory quick couplers aren't standard on this micro excavator class from this era; buckets pin straight to the arm. Aftermarket couplers sized for the sub-2 tonne bracket come in mechanical pin-grabber (wedge/lever-lock, no hydraulics needed) and hydraulic pin-grabber styles, generally covering roughly 0.75-4 tonne machines with smaller-diameter coupler pins in the 20-25mm range. A hydraulic pin-grabber coupler needs its own circuit run through the attachment control valve to release from the cab.
Thumbs/grapples
Hydraulic thumb kits built for the 1-2 tonne mini excavator class pin or bolt to the arm and run off a single double-acting auxiliary circuit; manual pin-on thumbs (non-hydraulic) are also common at this size and need no extra plumbing. Fixed-jaw and rotating grapples sized for the 0.8-1.5 tonne bracket are available for brush, scrap, and log handling. A rotating grapple needs its own hydraulic rotation circuit, which is not standard on this machine.
Rippers
Single-shank hook/tooth rippers sized for the 1-2 tonne mini excavator class are available and pin in place of, or bolt to, the bucket linkage. They need no hydraulics and are used for trenching in hard soil, root and rock breaking, and frozen-ground work. No multi-shank ripper attachment is documented for this size class - ripping capability here is limited to a single tooth or hook style.
Hydraulic-kit notes
Factory documentation for this chassis lists a P.P.C. valve for attachment control and a separate attachment hydraulic piping line, so a breaker/attachment circuit is a documented option on the PC12R-8 (S/N 10001-UP), not confirmed as standard equipment - check the specific machine's fitment before ordering tools. Stock hydraulic output (roughly 37 L/min at about 186 bar relief) covers the flow and pressure window needed for micro-class breakers and single-circuit thumbs. This machine has no high-flow circuit and is not a candidate for high-flow attachments like mulchers or flail mowers.
All PC12R-8(S/N 10001-UP) assemblies by section
Every catalogued assembly group for the Komatsu PC12R-8(S/N 10001-UP). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
3d68e-3g Engine S/N 03402-Up
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Air Cleaner And Mounting
| YM***80 | Air Cleaner Support, Assembly | 1 |
| YM***00 | Stay | 1 |
| YM***40 | Valve,Unloader | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Air Intake Manifold And Connection
| YM***10 | Gasket, Suction Manifold | 1 |
| YM***82 | Bolt | 1 |
| YM***01 | Manifold,Air Intake | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Alternator (Inner Parts)
| YM***00 | Stator Ass'Y | 1 |
| YM***02 | Alternator A. (20a) | 1 |
| YM***00 | Nut,Ball | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Alternator And Mounting
| YM***02 | Bolt Plated | 1 |
| YM***02 | Nut | 1 |
| YM***50 | Bolt | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Camshaft And Tappet
| YM***00 | Tappet | 6 |
| YM***50 | Retainer, Bearing | 1 |
| YM***22 | Screw | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Crankshaft
| YM***00 | Gear,Crank | 1 |
| YM***80 | Bolt | 1 |
| YM***41 | Washer | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Cylinder Block
| YM***00 | Plug | 2 |
| YM***00 | Main Metal Ass'Y (Std) | 4 |
| YM***00 | Plug | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Cylinder Block Accsessory
| YM***50 | Oil Pressure Transmitter | 1 |
| YM***00 | Gauge,Oil Level | 1 |
| YM***20 | Plug,Drain(Without Oil Cooler Type) | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Cylinder Head
| YM***00 | Screw | 14 |
| YM***10 | Valve, Exhaust | 3 |
| YM***40 | Seat,Intake And Exhaust (Kit) | 6 |
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Cylinder Head Cover
| YM***51 | Cap, Lub. Oil Supply | 1 |
| YM***10 | Gasket,Head Cover (Kit) | 1 |
| YM***50 | Pipe,Breather | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Drive Gear
| YM***22 | Retainer, Idle Gear | 1 |
| YM***00 | Ring, Snap | 1 |
| YM***52 | Shaft,Idler Gear | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Electrical Parts (Forwerded Individually Parts)
| YM***21 | Indicator, Charging | 1 |
| YM***20 | Timer,Solenoid | 1 |
| YM***10 | Relay,Stop Solenoid | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Exhaust Manifold And Muffler
| YM***00 | Manifold, Exhaust | 1 |
| YM***22 | Stud | 2 |
| YM***02 | Stud | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Flywheel And Flywheel Housing
| YM***20 | Bolt Plated | 3 |
| YM***20 | Parallel Pin | 2 |
| YM***80 | Parallel Pin | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Front Cover
| YM***51 | Cap, Lub. Oil Supply | 1 |
| YM***40 | O-Ring,Drain Plug | 1 |
| YM***62 | Bolt Plated | 7 |
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Fuel Filter
| YM***40 | Lever | 1 |
| YM***00 | O-Ring (Kit) | 1 |
| YM***50 | Cartridge | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Fuel Filter And Piping
| YM***80 | Pipe | 1 |
| YM***20 | Pipe, Fuel, Assembly | 1 |
| YM***50 | Bolt, Pipe Joint | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Fuel Injection Pump (Pump) (Inner Parts)
| YM***00 | Washer,Spring | 2 |
| YM***00 | Washer | 2 |
| YM***50 | Shim Ass'Y | 3 |
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Fuel Injection Pump And Piping
| YM***20 | Retainer, Pipe | 1 |
| YM***30 | Pipe,Injection? No.3 | 1 |
| YM***10 | Pipe,Injection? No.1 | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Fuel Nozzle And Spill Hose
| YM***40 | Spacer, Valve Stop | 1 |
| YM***00 | Fuel Injection Valve, Assembly | 3 |
| YM***80 | Nut | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Gasket Kit
| YM***10 | Gasket, Suction Manifold | 1 |
| YM***10 | Gasket Kit | 1 |
| YM***10 | Gasket,Head Cover (Kit) | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Glow Plug
| YM***00 | Glow Plug | 3 |
| YM***20 | Connection Plugs | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Governor Control
| YM***00 | Pin, Cotter | 1 |
| YM***00 | Retainer, Shaft | 1 |
| YM***30 | Screw,Adjust | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Lubricating Oil Pump
| YM***22 | Screw | 2 |
| YM***81 | Pipe,Inlet | 1 |
| YM***20 | O-Ring,Cylinder Head Cover Bolt | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Oil Filter
| YM***50 | Nut | 1 |
| YM***00 | Valve Ass'Y | 1 |
| YM***50 | Cartridge,Engine Oil | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Oil Pan
| YM***40 | Plug,Drain | 1 |
| YM***52 | Bolt Plated | 20 |
| YM***70 | Oil Pan Ass'Y | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Piston And Connecting Rod
| YM***00 | Piston Ring Ass'Y | 1 |
| YM***10 | Bearing (--0.25 mm) | 1 |
| YM***80 | Piston Ass'Y | 3 |
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Rocker Arm
| YM***30 | Screw,Adjusting | 2 |
| YM***50 | Rocker Arm Ass'Y,Intake | 3 |
| YM***02 | Nut | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Starting Motor (0.8kw) (Inner Parts)
| YM***00 | Stopper Set | 1 |
| YM***10 | Holder Brush, Assembly | 1 |
| YM***70 | Magnetic Switch A | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Starting Motor And Mounting (0.8kw)
| YM***52 | Screw | 2 |
| (Y***1) | Starting Motor Ass'Y,(0.8kw) (See Fig.A6210-B0a1) | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Tool
| YM***60 | Wrench,Fuel Filter? Water Separator | 1 |
| YM***50 | Screw Driver | 1 |
| YM***51 | Wrench,(For Engine Oil Filter) | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : 3d68e-3g Engine S/N 03402-Up : Water Pump And Cooling Fan
| YM***02 | Screw | 4 |
| YM***20 | Gasket (Kit) | 1 |
| YM***60 | Spacer | 1 |
Accessory
Komatsu : Pc12r-8(S/N 10001-Up) : Accessory : Spare Parts (Tropical Spec.)
| 07***18 | O-Ring, Divider Valve Mounting | 1 |
| 07***00 | O-Ring,(Y1620-11a0a-11) | 1 |
| 07***34 | O-Ring,(For 2-Actuater Attachment) | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Accessory : Tool
| 07***40 | Tube | 1 |
| 07***50 | Pump, (Bellows Type) | 1 |
| 07***03 | Cartridge - Grease | 1 |
Cooling System
Komatsu : Pc12r-8(S/N 10001-Up) : Cooling System : Radiator And Piping
| 01***16 | Bolt - Box Mounting | 4 |
| 01***16 | Bolt - Seat And Tether Belt Mounting | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
Komatsu : Pc12r-8(S/N 10001-Up) : Cooling System : Reserve Tank And Piping
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***14 | Bolt - Fuel Sensor Mounting | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
Electrical System
Komatsu : Pc12r-8(S/N 10001-Up) : Electrical System : Battery
| 01***12 | Bolt,(With Speedometer) | 1 |
| 01***05 | Nut,(For Air Conditioner Less), Nut | 4 |
| 01***23 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Electrical System : Battery (For U.S.A. Spec.)
| 01***12 | Bolt,(With Speedometer) | 1 |
| 01***05 | Nut,(For Air Conditioner Less), Nut | 4 |
| 01***23 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Electrical System : Electrical Wiring (Engine And Instrument Panel Line)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***20 | Screw | 4 |
Komatsu : Pc12r-8(S/N 10001-Up) : Electrical System : Electrical Wiring (Fuse Box And Relay Line)
| 01***10 | Bolt - Relay And Flasher Mounting | 8 |
| 01***20 | Bolt,See Fig. K4010-11a0 | 2 |
| 20***10 | Timer | 1 |
Engine Related Parts
Komatsu : Pc12r-8(S/N 10001-Up) : Engine Related Parts : Damper
| 01***30 | Bolt,(With Body Positioner) | 8 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
| 04***08 | Adapter Sleeves | 6 |
Komatsu : Pc12r-8(S/N 10001-Up) : Engine Related Parts : Engine Mounting Parts
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***30 | Bolt,(With Body Positioner) | 14 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 8 |
Komatsu : Pc12r-8(S/N 10001-Up) : Engine Related Parts : Engine Related Parts
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***65 | Bolt - Return Line And Suction Linehose Clamps | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Engine Related Parts : Engine Related Parts (Quick Breaker Arm Spec.)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***65 | Bolt - Return Line And Suction Linehose Clamps | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Engine Related Parts : Fan Pulley (Tropical Spec.)
| YM***91 | V-Belt | 1 |
| YM***50 | Pulley,(North America Spec.) | 1 |
Fuel Tank And Related Parts
Komatsu : Pc12r-8(S/N 10001-Up) : Fuel Tank And Related Parts : Fuel Piping
| 01***16 | Screw | 2 |
| 01***10 | Bolt - Relay And Flasher Mounting | 2 |
| 07***15 | Clip | 8 |
Komatsu : Pc12r-8(S/N 10001-Up) : Fuel Tank And Related Parts : Fuel Tank
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***14 | Screw | 11 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
Guard
Komatsu : Pc12r-8(S/N 10001-Up) : Guard : Counter Weight
| 01***55 | Bolt,(Not Used For Chip Dozer) | 2 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 2 |
| 20***15 | Weight | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Guard : Counter Weight (Quick Breaker Arm Spec.)
| 01***55 | Bolt,(Not Used For Chip Dozer) | 2 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 2 |
| 20***70 | Insert | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Guard : Engine Hood
| 01***16 | Bolt - Seat And Tether Belt Mounting | 2 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 4 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Guard : Engine Hood (Quick Breker Spec.)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 2 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 4 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Guard : Left Side Cover
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
| 20***15 | Cover,L.H | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Guard : Left Side Cover (For Attachment)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
| 20***51 | Sheet | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Guard : Right Side Cover
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
| 20***25 | Cover,R.H | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Guard : Right Side Cover (For Car Heater)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 4 |
| 20***61 | Sheet | 1 |
| 20***80 | Cover,R.H | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Guard : Side Protector
| 01***40 | Bolt,For Weight Adjusting Bolt | 2 |
| 01***60 | Bolt,For Weight Adjusting Bolt | 2 |
| 17***70 | Washer (Isolator Mounting) | 4 |
Hydraulic System
Komatsu : Pc12r-8(S/N 10001-Up) : Hydraulic System : Delivery Line
| 07***08 | Hose Assembly | 1 |
| 07***14 | Hose,(Yellow) | 1 |
| 08***36 | Band,(For 2nd Travel Speed) (Op) | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Hydraulic System : Drain Line
| 07***35 | Hose - Radiator Drain | 1 |
| 07***59 | Clamp,See Fig. K4010-05a0 | 2 |
| 20***30 | Hose,Arm Cylinder | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Hydraulic System : Hydraulic Piping (2-Way Selector Valve Line)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 4 |
Komatsu : Pc12r-8(S/N 10001-Up) : Hydraulic System : Hydraulic Piping (Arm And Bucket Cylinder Line)
| 08***36 | Band,(For 2nd Travel Speed) (Op) | 1 |
| 08***14 | Band,(D60p) | 1 |
| 20***51 | Hose | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Hydraulic System : Hydraulic Piping (Attachment Line) (2-Way) (In Revolving Frame)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Hydraulic System : Hydraulic Piping (Attachment Line) (Q-Brk) (In Revolving Frame)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Hydraulic System : Hydraulic Piping (Attachment Line)(In Revolving Frame)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Hydraulic System : Hydraulic Piping (Boom Cylinder And Boom Swing Cylinder Line)
| 20***42 | Hose | 2 |
| 20***41 | Hose | 1 |
| 20***51 | Hose | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Hydraulic System : Hydraulic Piping (Multi Pattern Control Valve Line) (1/2)
| 01***12 | Bolt - Front Cover Mounting | 2 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
Komatsu : Pc12r-8(S/N 10001-Up) : Hydraulic System : Hydraulic Piping (Multi Pattern Control Valve Line) (2/2)
| 07***23 | O-Ring,(For 2nd Travel Speed) (Op) | 16 |
| 08***36 | Band,(For 2nd Travel Speed) (Op) | 6 |
| 20***10 | Hose | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Hydraulic System : Hydraulic Piping (P.P.C. Valve Line)
| 20***10 | Hose | 1 |
| 20***21 | Hose | 1 |
| 20***75 | Hose | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Hydraulic System : Hydraulic Piping (Swing Motor Line)
| 20***30 | Hose,R.H. Travel | 1 |
| 20***10 | Hose | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Hydraulic System : Hydraulic Piping (Valve To Swivel Joint) (For Blade Cylinder L.)
Komatsu : Pc12r-8(S/N 10001-Up) : Hydraulic System : Hydraulic Piping (Valve To Swivel Joint) (For Travel Motor Line)
| 20***91 | Hose | 1 |
| 20***62 | Hose | 1 |
| 20***70 | Hose,(Swing Motor S - Valve S) | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Hydraulic System : Hydraulic Pump And Related Parts
| 01***20 | Bolt, Adapter Mounting | 2 |
| 01***25 | Bolt,See Fig. K4010-65a0 | 2 |
| 01***16 | Washer,(With Water Separator) | 4 |
Komatsu : Pc12r-8(S/N 10001-Up) : Hydraulic System : Hydraulic Tank
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
Komatsu : Pc12r-8(S/N 10001-Up) : Hydraulic System : Return Line
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 3 |
Komatsu : Pc12r-8(S/N 10001-Up) : Hydraulic System : Suction Line
| 07***28 | Hose | 1 |
| 07***19 | Clamp, Hose | 2 |
| 08***23 | Band,(With Water Separator) | 2 |
Main/Revolving Frame And Related Parts
Komatsu : Pc12r-8(S/N 10001-Up) : Main/Revolving Frame And Related Parts : Boom Swing Bracket
| 01***20 | Bolt,(For Mono Lever Steering) | 5 |
| 01***30 | Bolt, Tension Adjustment | 1 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Main/Revolving Frame And Related Parts : Boom Swing Cylinder
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
| 07***23 | O-Ring,(For 2nd Travel Speed) (Op) | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Main/Revolving Frame And Related Parts : Boom Swing Cylinder (Quick Breaker Arm Spec.)
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
| 07***23 | O-Ring,(For 2nd Travel Speed) (Op) | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Main/Revolving Frame And Related Parts : Lubricating Line
| 07***00 | Fitting, Grease - Upper Hinge Pin | 2 |
| 20***10 | Tube | 1 |
| 20***20 | Adapter | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Main/Revolving Frame And Related Parts : Revolving Frame
| 01***16 | Bolt, Mount Solenoid Valve | 2 |
| 20***15 | Frame,Revolving | 1 |
| 20***11 | Bushing | 2 |
Marks And Plates
Komatsu : Pc12r-8(S/N 10001-Up) : Marks And Plates : Marks And Plates (Cab Spec.) (English)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 09***30 | Plate? Name,(Limited Supply) | 1 |
| 09***01 | Plate? Safety,Warning Before Ope.And Mainte | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Marks And Plates : Marks And Plates (Canopy Spec.) (English)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 09***30 | Plate? Name,(Limited Supply) | 1 |
| 09***01 | Plate? Safety,Warning Before Ope.And Mainte | 1 |
Operator'S Compartment And Control System
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Attachment Control Pedal And Linkage
| 01***16 | Bolt - Seat And Tether Belt Mounting | 2 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***11 | Nut - Mounting | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Attachment Control Pedal And Linkage (2-Way)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 5 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Attachment Control Pedal And Linkage (Quick Breaker Arm Spec.)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 2 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***11 | Nut - Mounting | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Blade Control Lever And Linkage
| 01***16 | Bolt - Seat And Tether Belt Mounting | 1 |
| 01***25 | Bolt,(Rear Attachment Less) | 2 |
| 01***25 | Screw | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Boom Swing Pedal And Linkage
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***30 | Bolt - M8 X 30lg | 1 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Canopy
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Car Heater And Piping
| 01***16 | Bolt - Seat And Tether Belt Mounting | 5 |
| 01***25 | Bolt,(Rear Attachment Less) | 2 |
| 01***16 | Bolt, Mount Solenoid Valve | 3 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Floor Cover
| 01***16 | Bolt, Mount Solenoid Valve | 4 |
| 20***13 | Plate,Floor | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Floor Cover (For Attachment)
| 01***16 | Bolt, Mount Solenoid Valve | 4 |
| 20***51 | Plate,Floor | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Floor Cover (For Cab)
| 01***16 | Bolt, Mount Solenoid Valve | 4 |
| 20***90 | Plate,Floor | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Floor Frame (1/2)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 10 |
| 01***50 | Capscrew | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Floor Frame (2/2) (Accel Lever)
| 01***25 | Bolt,(Rear Attachment Less) | 1 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***20 | Screw, Mount Monitor Panel (Front) | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Floor Mat (For Attachment)
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Floor Mat (For Cab)
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Floor Mat (For Canopy)
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Floor Mat (For Car Heater)
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Handrail
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 20***12 | Stay | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Main Valve Related Parts
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 3 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 3 |
| 07***23 | O-Ring,(For 2nd Travel Speed) (Op) | 13 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Main Valve Related Parts (2way)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 3 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 3 |
| 07***23 | O-Ring,(For 2nd Travel Speed) (Op) | 13 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Operator'S Cab (1/9)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 4 |
| 01***25 | Bolt,(Rear Attachment Less) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Operator'S Cab (2/9)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***16 | Screw | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Operator'S Cab (3/9)
| 01***08 | Washer,(For Fixed Type Ripper) | 4 |
| 21***20 | Switch,Wiper | 1 |
| 21***60 | Screw | 4 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Operator'S Cab (4/9)
| 01***08 | Washer,(For Fixed Type Ripper) | 1 |
| 21***50 | Screw | 2 |
| 21***60 | Screw | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Operator'S Cab (5/9)
| 21***20 | Latch Ass'Y,L.H | 1 |
| 21***90 | Washer,Spring | 4 |
| 21***50 | Latch Assembly., R.H | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Operator'S Cab (6/9)
| 21***40 | Ring, Snap | 4 |
| 21***10 | Roof Hatch, Assembly | 1 |
| 21***20 | Pin | 4 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Operator'S Cab (7/9)
| 21***70 | Screw | 4 |
| 21***20 | Screw | 18 |
| 21***90 | Washer | 22 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Operator'S Cab (8/9)
| 21***60 | Screw | 2 |
| 21***70 | Screw | 2 |
| 21***40 | Contactor,Fixed | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Operator'S Cab (9/9)
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
| 21***60 | Washer,Spring | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Operator'S Seat
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
| 20***00 | Seat | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Operator'S Seat (For Cab)
| 01***06 | Nut | 4 |
| 21***00 | Seat | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : P.P.C. Valve
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 8 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 8 |
| 07***23 | O-Ring,(Crusher?Other Att.For Ppc Con | 8 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : P.P.C. Valve Line (1/2)
| 08***36 | Band,(For 2nd Travel Speed) (Op) | 6 |
| 20***10 | Mark? 1 | 2 |
| 20***20 | Mark? 2 | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : P.P.C. Valve Line (2/2)
| 07***18 | O-Ring,(See Fig.1601-29?1602-17) | 8 |
| 20***30 | Bolt,(Without 1 Att And Pat) | 2 |
| 20***60 | Mark? P1 | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Rain Guard
| 01***20 | Screw | 2 |
| 01***16 | Bolt,(Without Cab) | 6 |
| 01***23 | Washer,(With Auto Emergency Steering) | 8 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Seat Belt
| 09***00 | Belt,Lap (50mm) | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Second Control Pedal And Linkage
| 01***16 | Bolt - Box Mounting | 4 |
| 01***16 | Bolt - Seat And Tether Belt Mounting | 1 |
| 01***23 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Second Control Pedal And Linkage (U.S.A. Spec.)
| 01***16 | Bolt - Box Mounting | 4 |
| 01***16 | Bolt - Seat And Tether Belt Mounting | 1 |
| 01***23 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Tops Canopy
| 01***35 | Bolt,(F4320-52a0 -5 ) | 4 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Travel Control Lever
| 01***20 | Bolt,(Without Air Con. Or Heater) | 4 |
| 01***16 | Bolt - Seat And Tether Belt Mounting | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 5 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Travel Control Lever (2way)
| 01***20 | Bolt,(Without Air Con. Or Heater) | 4 |
| 01***16 | Bolt - Seat And Tether Belt Mounting | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 7 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Travel Control Lever (U.S.A.Spec.)
| 01***20 | Bolt,(Without Air Con. Or Heater) | 4 |
| 01***16 | Bolt - Seat And Tether Belt Mounting | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 7 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Work Equipment Control Lever
| 01***11 | Nut - Mounting | 2 |
| 01***08 | Washer,(For Joy Stick Steering) | 2 |
| 08***00 | Connector (Modify Air Dryer Lead) | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Work Equipment Control Lever (For Operator'S Cab)
| 01***11 | Nut - Mounting | 2 |
| 01***08 | Washer,(For Joy Stick Steering) | 2 |
| 08***00 | Connector (Modify Air Dryer Lead) | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Work Equipment Lock Lever
| 04***32 | Pin, Spring | 3 |
| 04***15 | Pin,Cotter (Itl) | 2 |
| 04***20 | Pin | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Work Equipment Lock Lever (For Operator'S Cab)
| 04***32 | Pin, Spring | 2 |
| 04***15 | Pin,Cotter (Itl) | 2 |
| 04***20 | Pin | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Operator'S Compartment And Control System : Work Equipment Lock Lever (U.S.A. Spec.)
| 04***32 | Pin, Spring | 3 |
| 04***15 | Pin,Cotter (Itl) | 2 |
| 04***20 | Pin | 2 |
Service Kit And Component Parts
Komatsu : Pc12r-8(S/N 10001-Up) : Service Kit And Component Parts : Arm Cylinder (Inner Parts)
| 01***18 | Nut | 1 |
| 07***48 | O-Ring,(F4350-64a0 -21 ) | 1 |
| 07***45 | O-Ring,(F4350-60a0 -9 ) | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Service Kit And Component Parts : B00m Cylinder (Cab Spec.) (Inner Parts)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 1 |
| 01***16 | Nut,(Balancer) | 1 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Service Kit And Component Parts : B00m Cylinder (Inner Parts)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 1 |
| 01***16 | Nut,(Balancer) | 1 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Service Kit And Component Parts : Blade Cylinder (Inner Parts)
| 01***18 | Nut | 1 |
| 07***60 | O-Ring,(For Pc750?800?1800) (A2610) | 1 |
| 07***55 | O-Ring,(F4350-62a1 -14 ) | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Service Kit And Component Parts : Boom Swing Cylinder (Inner Parts)
| 01***18 | Nut | 1 |
| 07***60 | O-Ring,(For Pc750?800?1800) (A2610) | 1 |
| 07***55 | O-Ring,(F4350-62a1 -14 ) | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Service Kit And Component Parts : Boom Swing Cylinder (Inner Parts) (Quick Breaker Arm Spec.)
| 01***18 | Nut | 1 |
| 07***60 | O-Ring,(For Pc750?800?1800) (A2610) | 1 |
| 07***30 | Ring, Seal - Between Sections | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Service Kit And Component Parts : Bucket Cylinder (Inner Parts)
| 01***16 | Bolt (With Air Heater & Conditioner) | 1 |
| 01***18 | Nut | 1 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Service Kit And Component Parts : Hydraulic Pump (Inner Parts)
| 20***00 | Pump Ass'Y | 1 |
| 20***10 | Seal | 1 |
| 20***20 | Seal Kit | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Service Kit And Component Parts : Main Valve (1/12)
| 72***00 | Control Valve | 1 |
| 72***01 | Control Valve | 1 |
| 72***02 | Control Valve | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Service Kit And Component Parts : Main Valve (10/12)
| 70***10 | O-Ring (Kit) | 1 |
| 70***20 | Ring, Back-Up | 1 |
| 70***90 | O-Ring,Suction | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Service Kit And Component Parts : Main Valve (11/12)
| 07***34 | O-Ring | 1 |
| 70***10 | O-Ring (Kit) | 1 |
| 72***02 | Valve Ass'Y | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Service Kit And Component Parts : Main Valve (12/12)
| 07***34 | O-Ring,(Not Used When (B) Spec.) | 1 |
| 72***00 | Valve Ass'Y,Suction | 4 |
| 72***10 | Sleeve | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Service Kit And Component Parts : Main Valve (2/12)
| 01***10 | Bolt | 4 |
| 72***60 | Cover Sub Ass'Y | 1 |
| 72***50 | Plate | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Service Kit And Component Parts : Main Valve (3/12)
| 01***50 | Bolt,(For Trimming Dozer) | 4 |
| 01***23 | Washer,(For Shipping) | 8 |
| 07***04 | O-Ring | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Service Kit And Component Parts : Main Valve (4/12)
| 07***04 | O-Ring | 1 |
| 07***23 | O-Ring; Was 07002-10823, O-Ring,(Not Shown) | 1 |
| 70***30 | Ball | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Service Kit And Component Parts : Main Valve (5/12)
| 01***10 | Bolt | 11 |
| 01***12 | Bolt | 2 |
| 01***16 | Bolt (Op) | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Service Kit And Component Parts : Main Valve (6/12)
| 07***23 | O-Ring (K8) | 12 |
| 72***60 | O-Ring | 1 |
| 72***10 | Plug | 12 |
Komatsu : Pc12r-8(S/N 10001-Up) : Service Kit And Component Parts : Main Valve (7/12)
| 07***09 | O-Ring,(For Dual Tilt Dozer) | 1 |
| 72***40 | Case Sub Ass'Y | 1 |
| (7***3) | Control Valve | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Service Kit And Component Parts : Main Valve (8/12)
| 07***09 | O-Ring,(For Dual Tilt Dozer) | 1 |
| 72***30 | Case Sub Ass'Y | 1 |
| (7***3) | Control Valve | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Service Kit And Component Parts : Main Valve (9/12)
| 01***12 | Bolt | 3 |
| 01***16 | Bolt (Op) | 2 |
| 01***30 | Bolt | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Service Kit And Component Parts : P.P.C. Valve (For Attachment Control)
| 01***25 | Bolt, Seal Cover Mounting | 2 |
| 70***70 | Pilot Valve,(See Fig.Y1670-21a0) | 1 |
| 70***40 | Shim - 0.012 In. (0.30 mm) | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Service Kit And Component Parts : P.P.C. Valve (For Work Equipment Control)
| 01***20 | Bolt,(Without Maintenance Monitor) | 4 |
| 07***20 | O-Ring,Relief Valve | 4 |
| 07***70 | O-Ring,(For Intake Air Cover) | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Service Kit And Component Parts : Selector Valve (For 2-Way Attachment)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 6 |
| 01***23 | Washer,(With Auto Emergency Steering) | 6 |
| 04***93 | Ball,Steel | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Service Kit And Component Parts : Swing Motor
| 04***18 | Ring,Snap (Without R.P.C.U.) | 1 |
| 04***30 | Ring, Snap | 1 |
| 07***05 | O-Ring (K1) | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Service Kit And Component Parts : Swivel Joint (Inner Parts)
| 01***16 | Bolt (Op) | 4 |
| 04***18 | Ring,Snap (With Emergency Steering) | 1 |
| 70***51 | Joint Ass'Y | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Service Kit And Component Parts : Travel Motor (1/3) (Inner Parts)
| 04***12 | Pin, Spring | 7 |
| 20***01 | Motor Ass'Y | 2 |
| FU***93 | Carrier Sub Ass'Y | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Service Kit And Component Parts : Travel Motor (2/3) (Inner Parts)
| 04***12 | Ring,Split, Ring-Snap | 1 |
| 06***04 | Bearing | 1 |
| 06***01 | Bearing | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Service Kit And Component Parts : Travel Motor (3/3) (Inner Parts)
| 04***12 | Pin,Spring (See Fig.0201) | 1 |
| 07***10 | O-Ring | 4 |
| 07***14 | O-Ring,(F4350-61a0a-20 ) | 2 |
Swing Circle And Related Parts
Komatsu : Pc12r-8(S/N 10001-Up) : Swing Circle And Related Parts : Swing Circle
| 01***50 | Bolt,(Spark Arrester Spec.) | 18 |
| 01***30 | Bolt | 16 |
| 01***32 | Washer,(With Auto Emergency Steering) | 16 |
Komatsu : Pc12r-8(S/N 10001-Up) : Swing Circle And Related Parts : Swing Motor
| 01***40 | Bolt,For Weight Adjusting Bolt | 4 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 4 |
| 07***11 | O-Ring,(Tm8202-009) | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Swing Circle And Related Parts : Swivel Joint And Related Parts
| 01***25 | Bolt,(Rear Attachment Less) | 4 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
Travel And Lower Piping
Komatsu : Pc12r-8(S/N 10001-Up) : Travel And Lower Piping : Final Drive
| 01***25 | Bolt,See Fig. K4010-65a0 | 12 |
| 07***11 | O-Ring,(Tm8202-009) | 6 |
| 07***14 | O-Ring,(F4350-61a0a-20 ) | 4 |
Komatsu : Pc12r-8(S/N 10001-Up) : Travel And Lower Piping : Lower Piping
| 20***11 | Hose | 4 |
| 20***51 | Hose | 2 |
| 20***10 | Hose | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Travel And Lower Piping : Sprocket
| 01***25 | Bolt,See Fig. K4010-65a0 | 18 |
| 20***11 | Sprocket | 2 |
Under Carriage
Komatsu : Pc12r-8(S/N 10001-Up) : Under Carriage : Carrier Plate
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 20***10 | Plate | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Under Carriage : Front Idler (For Rubber Shoe)
| 01***35 | Bolt,(F4320-52a0 -5 ) | 4 |
| 01***40 | Bolt | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Pc12r-8(S/N 10001-Up) : Under Carriage : Front Idler (For Steel Shoe)
| 01***40 | Bolt | 2 |
| 01***23 | Washer,(For Shipping) | 2 |
| 04***15 | Ring, Snap | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Under Carriage : Idler Cushion (For Rubber Shoe)
| 07***30 | O-Ring,Boom (For 50 Feet Long Front) | 1 |
| 07***30 | Ring, Back-Up | 1 |
| 07***75 | Fitting,Grease (Without Lub. Piping) | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Under Carriage : Idler Cushion (For Steel Shoe)
| 01***35 | Bolt,(F4320-52a0 -5 ) | 4 |
| 01***21 | Nut | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Pc12r-8(S/N 10001-Up) : Under Carriage : Track Frame
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 4 |
| 20***11 | Track Frame Ass'Y | 1 |
| 20***51 | Cover | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Under Carriage : Track Frame Cover
| 01***16 | Bolt - Seat And Tether Belt Mounting | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***16 | Bolt, Mount Solenoid Valve | 4 |
Komatsu : Pc12r-8(S/N 10001-Up) : Under Carriage : Track Guard
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
| 01***30 | Bolt,(With Body Positioner) | 12 |
| 01***32 | Washer,(With Auto Emergency Steering) | 20 |
Komatsu : Pc12r-8(S/N 10001-Up) : Under Carriage : Track Roller (For Rubber Shoe)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 12 |
| 04***12 | Ring, Snap (4) | 2 |
| 06***05 | Bearing, Ball | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Under Carriage : Track Roller (For Steel Shoe)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 12 |
| 04***12 | Ring, Snap (4) | 2 |
| 06***05 | Bearing, Ball | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Under Carriage : Track Shoe (Rubber Shoe)
| 20***10 | Rubber Shoe Ass'Y | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Under Carriage : Track Shoe (Steel Shoe)
| 20***40 | Bushing | 2 |
| 20***60 | Pin,Regular Paint(1) | 31 |
| 20***40 | Pin,Master Paint(1) | 1 |
Work Equipment
Komatsu : Pc12r-8(S/N 10001-Up) : Work Equipment : Arm
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 04***10 | Lock,Plate | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Work Equipment : Arm (Quick Breaker Arm Spec.)
| 01***20 | Bolt,(For Mono Lever Steering) | 14 |
| 01***19 | Nut | 3 |
| 01***32 | Washer,(With Auto Emergency Steering) | 14 |
Komatsu : Pc12r-8(S/N 10001-Up) : Work Equipment : Blade
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
| 20***20 | Bushing | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Work Equipment : Blade (Quick Breaker Arm Spec.)
| 01***20 | Bolt,(For Mono Lever Steering) | 6 |
| 01***32 | Washer,(With Auto Emergency Steering) | 6 |
| 20***20 | Bushing | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Work Equipment : Blade Cylinder (Inner Parts)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***12 | Bolt,(With Speedometer) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Work Equipment : Boom
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***40 | Bolt,For Weight Adjusting Bolt | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Work Equipment : Boom (Long Arm Spec.)
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***40 | Bolt,For Weight Adjusting Bolt | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Work Equipment : Boom (Quick Breaker Arm Spec. And Attachment Spec.)
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***40 | Bolt,For Weight Adjusting Bolt | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Work Equipment : Boom Cylinder Cover
| 01***16 | Bolt - Seat And Tether Belt Mounting | 1 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 1 |
| 20***10 | Guide | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Work Equipment : Breaker Piping (Boom)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Pc12r-8(S/N 10001-Up) : Work Equipment : Bucket Link
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Pc12r-8(S/N 10001-Up) : Work Equipment : Bucket Link (Quick Breaker Arm Spec.)
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Pc12r-8(S/N 10001-Up) : Work Equipment : Bucket Pin
| 01***70 | Bolt - Bracket And Oil Inlet Tubemounting | 2 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 4 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Work Equipment : Bucket Pin (Quick Breaker Arm Spec.)
| 01***70 | Bolt - Bracket And Oil Inlet Tubemounting | 2 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 4 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 1 |
Komatsu : Pc12r-8(S/N 10001-Up) : Work Equipment : Bucket? 0.02m3 (Mini 0.04m3) Width 300mm
| 01***34 | Bolt | 6 |
| 01***13 | Nut | 6 |
| 02***50 | Bolt | 4 |
Komatsu : Pc12r-8(S/N 10001-Up) : Work Equipment : Bucket? 0.035m3 (Mini 0.06m3) Width 400mm
| 01***34 | Bolt | 6 |
| 01***13 | Nut | 6 |
| 02***50 | Bolt | 6 |
Komatsu : Pc12r-8(S/N 10001-Up) : Work Equipment : Bucket? 0.04m3 (Mini 0.066m3) Width 450mm
| 01***34 | Bolt | 6 |
| 01***13 | Nut | 6 |
| 02***50 | Bolt | 8 |
Komatsu : Pc12r-8(S/N 10001-Up) : Work Equipment : Hydraulic Breaker (Inner Parts)
| 07***03 | Bushing | 2 |
| 07***30 | Seal,Dust (Kit) | 2 |
| 20***20 | Bushing | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Work Equipment : Long Arm (1/2) (Arm)
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 04***10 | Lock,Plate | 2 |
Komatsu : Pc12r-8(S/N 10001-Up) : Work Equipment : Long Arm (2/2) (Bucket Cylinder Tube)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
| 20***21 | Tube | 1 |
PC12R-8(S/N 10001-UP) serial number reference
On this range the ID plate carries a plain numeric machine serial only (no alpha prefix), stamped/riveted to the machine frame — commonly on the swing frame, boom foot, or counterweight area near the cab or canopy on this size class of mini excavator. Read the number as-is and compare it against the 10001-and-up break point in the parts/service manual to confirm this is the standard (non-HS, non-Italy) PC12R-8 build; there is no letter code to decode since the machine predates Komatsu's full alphanumeric PIN system.
| Prefix | Identifies | Notes |
|---|---|---|
| 10001-UP (no letter prefix) | Standard PC12R-8 mini excavator, roughly 1.3-1.48 t operating weight class depending on configuration, base production run sold in Japan and US markets | Plain sequential machine serial number with no 3-letter PIN prefix; this range predates Komatsu's later 17-character PIN format used on newer machines. The same 10001-and-up range covers both cab and canopy body configurations, and is used for both the Japan-market and US-market parts books (same numbers, separate regional catalogs, not separate prefixes). Fitted with the Komatsu 3D68E-3 3-cylinder diesel (shares its base design with the Yanmar 3TNE68 family). Production runs roughly 1999 to 2005 (confirm exact end date with dealer). This range is separate from the later Italy-built PC12R-8 series carrying an F30001-up / F31605-up serial run, and separate from the PC12R-8HS variant, which carries its own F31493-up serial run — neither belongs to this 10001-up family. |
Frequently asked questions
What engine does the Komatsu PC12R-8 (S/N 10001-Up) use?
It uses the Komatsu 3D68E, a 3-cylinder naturally aspirated diesel displacing about 0.78 L (47.9 cu in). Rated output runs 10.3-10.6 kW (13.9-14.3 hp) at 2450 rpm across factory spec sheets.
What is the operating weight of the PC12R-8 (S/N 10001-Up)?
Operating weight runs 1.3 to 1.48 t (2,866-3,263 lb) depending on configuration: canopy or cab, blade, and bucket fitted. Check your machine's nameplate for the exact figure since factory sheets vary by build.
What replaced the PC12R-8 (S/N 10001-Up)?
Komatsu built the R-series through the mid-2000s, then carried its sub-2-tonne class forward into the MR minimal-tail-swing range, including the PC15MR-1 and PC18MR-2. Those models reuse several final-drive, roller, and hydraulic pump-coupling parts from the PC12R-8 they followed.
What PC12R-8(S/N 10001-UP) owners discuss
What engine is in the PC12R-8 (S/N 10001-UP) and does it have any cold-start quirks owners run into?
It runs a small mechanically-governed 3-cylinder diesel from Komatsu's 3D68E family (Yanmar-derived), gross rated around 13-14 hp (roughly 10 kW) near 2450 rpm, with displacement listed anywhere from about 0.66 to 0.78 L depending on the source and package - treat the exact figure as configuration-dependent. There's no engine ECU to throw a code, so hard or intermittent cold starts almost always trace back to the glow plug circuit rather than the injection pump: a tired glow plug relay/timer, a plug that's stopped heating, or corroded connections at the plug harness. Before chasing fuel or injector timing, confirm the preheat cycle actually runs its full duration and test glow plug resistance/continuity - that alone clears most no-start or stall-right-after-start complaints on this engine family.
The machine cranks and idles fine but nothing moves when I work the pilot controls - what's the usual cause?
On this generation of Komatsu mini excavator, every hydraulic function is gated by the safety/lock lever at the seat. Raise or improperly seat that lever and its switch cuts pilot pressure to the control valve, so the engine runs normally but travel, swing, boom, and arm all go dead - it's not a pump or valve fault. Cycle the lever fully down, check its switch and wiring, and confirm the pilot shutoff is actually opening before assuming a hydraulic component failed. Because this lever is a safety interlock meant to disable the machine when the operator leaves the seat, have your dealer verify it re-engages correctly after any repair.
Is it normal for the boom or arm to sag down on its own after the machine sits overnight?
Some slow settling under a raised load points to one of three things: a worn piston seal inside the cylinder, cross-port leakage in the control valve, or a load-holding (pilot-operated) check valve that's no longer sealing due to a worn seat, weak spring, or trapped debris. A simple way to isolate it: crack the rod-side hose and cap it off - if the cylinder still creeps, the piston seal has failed; if it holds, the holding valve or valve bank is the source. Because a drifting boom is a crush hazard around anyone working underneath, have your dealer verify and repair the holding circuit rather than just topping off fluid and living with it.
What undercarriage wear should I expect on a rubber-tracked machine this size, and how is track tension set?
Like other rubber-tracked minis in this class, the tracks are tensioned by a grease-filled adjuster cylinder near the idler - add grease slowly to tighten and take up sag, crack the bleed valve to release grease and loosen, checking sag at the midpoint between idler and sprocket against the manual's spec after each adjustment. Watch sprocket teeth and track drive lugs together: worn sprocket teeth chew the inner lugs abnormally, so if you see lug damage, inspect the sprocket before just swapping tracks. Running a track too loose is the main cause of it jumping the idler on tight pivots or over debris, so keep tension in spec and keep the frame clear of packed material.
How do I check the swing bearing and swing motor for wear on a used unit?
With the engine off, try to rock the upper structure back and forth by hand - any noticeable vertical play at the swing bearing (slew ring) is a warning sign, since it's one of the most expensive components to replace on a machine this size. Look underneath the center of the turntable for grease or hydraulic oil weeping from the swing motor seal or the center swivel joint, and listen for grinding or notchy resistance while swinging through a full rotation under power. Any play or leakage found here should factor heavily into a used-machine price, and a grinding swing bearing warrants a dealer inspection before it's put back to work.
Hydraulic functions feel fine cold but get weak or sluggish once the machine has been running a while - is that a known pattern?
Yes, this is a common pattern on small excavators as the pump and relief valve wear: cold, thicker oil masks internal leakage past worn pump components, so everything feels reasonably strong; once the oil is hot and thin, that internal slippage shows up as noticeably reduced digging or lift force. Check hydraulic oil condition first - it should run clear amber, not dark brown or milky - and pull the return filter to look for fine metal, which points to pump wear rather than a simple contamination issue. Persistent heat-related weakness after fluid and filter are ruled out usually means the pump or relief valve needs shop attention.
What should I check specifically when looking at a used PC12R-8 (S/N 10001-UP)?
Confirm the serial plate actually falls in the 10001-and-up range so parts and manual references match. Cycle the seat safety lock lever and verify all hydraulic functions truly go dead when it's raised. Run every cylinder through full travel and watch for wet streaks on the rods (seal wear) and for any drift once held under load. With the engine off, rock the upper structure by hand to check swing bearing play, and look under the center of the machine for swing motor or swivel leaks. Check rubber track tension and lug wear together with sprocket tooth condition, and confirm the tracks aren't prone to jumping on tight turns. Check hydraulic oil color/level and the return filter for metal fines, and note cold-start behavior (glow plug cycle time, exhaust smoke color) since that's the main engine complaint on this model. Have a dealer or independent tech verify anything found on the safety lock lever, boom holding circuit, or swing bearing before you rely on the machine.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
Serial-range & configuration variants
This page covers the Komatsu PC12R-8(S/N 10001-UP). Related factory variants of the same model family:
PC12R-8(S/N F30001-Up)PC12R-8(S/N F31605-Up)
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