Komatsuhydraulic excavatorsmall ( - pc90)
Komatsu PC15MRX-1(S/N 10001-UP)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu PC15MRX-1 is a compact hydraulic excavator designed for utility and confined-space work. It is powered by a Komatsu 4D94LE engine. The machine features a compact radius tail swing design, allowing it to operate safely near obstacles. Production years for this specific serial range (10001-UP) generally align with the early 2000s. It succeeded the PC15-2 series and was eventually replaced by the PC15R-8 series. Configurations offered include standard and deluxe cab options, various boom and stick lengths, and auxiliary hydraulic circuits for attachments.
The PC15MRX-1 represents a transition in Komatsu's compact line, integrating more refined hydraulic controls and improved operator visibility compared to its predecessors. It matters in the used and parts market because its compact size makes it highly sought after for municipal, landscaping, and indoor demolition work where larger machines cannot fit. The availability of shared components with the PC18MR series and the robustness of the Komatsu 4D94LE engine ensure that parts remain accessible and the machine retains strong residual value in the secondary market.
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 PC15MRX-1(S/N 10001-UP) specifications
Engine
| Model | Komatsu 3D68E-N3FB |
| Gross Power | 17 hp (12.7 kW) @ 2600 rpm |
| Net Power | 15.3 hp (11.4 kW) @ 2600 rpm |
| Displacement | 0.78 L (47.8 cu in) |
| Cylinders | 3 |
| Aspiration | Natural |
| Max Torque | 49 Nm (36 lb ft) @ 1800 rpm |
Weights
| Operating Weight | 1650 kg (3637.6 lb) |
| Ground Pressure | 29.6 kPa (4.3 psi) |
Dimensions
| Transport Length | 3745 mm (12.3 ft) |
| Transport Width | 1000 mm (3.3 ft) |
| Transport Height | 2229 mm (7.3 ft) |
| Tail Swing Radius | 1070 mm (3.5 ft) |
| Track Shoe Width | 230 mm (9.1 in) |
| Track Gauge | 770 mm (2.5 ft) |
| Length of Track on Ground | 1015 mm (3.3 ft) |
| Counterweight Clearance | 437 mm (1.4 ft) |
Performance
| Max Digging Depth | 2160 mm (7.1 ft) |
| Max Reach at Ground | 3640 mm (11.9 ft) |
| Max Dump Height | 2500 mm (8.2 ft) |
| Max Cutting Height | 3480 mm (11.4 ft) |
| Max Vertical Wall Digging Depth | 1560 mm (5.1 ft) |
| Swing Speed | 10.4 rpm |
| Travel Speed | 4.2 km/h (2.6 mph) |
Forces
| Bucket Digging Force | Not documented for this exact serial range — verify with your dealer |
| Stick/Arm Digging Force | Not documented for this exact serial range — verify with your dealer |
Service capacities (summary)
| Fuel Tank | 20 L (5.3 gal) |
| Hydraulic System Fluid Capacity | 23 L (6.1 gal) |
| Engine Oil Capacity | 2.8 L (0.74 gal) |
| Cooling System Fluid Capacity | 3.2 L (0.85 gal) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
Komatsu PC15MRX-1(S/N 10001-UP) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
Servicing the PC15MRX-1(S/N 10001-UP) beyond the schedule
Predictive Maintenance & Fluid Analysis
Utilize the Komatsu Oil Wear Analysis (KOWA) program at every 500-hour interval to monitor engine and hydraulic fluid condition. Sample the hydraulic oil for particle count, viscosity, and water content to detect pump or valve wear early. Test the coolant SCA (Supplemental Coolant Additive) levels at 500 hours to prevent corrosion and cavitation in the Komatsu 4D94LE engine block. Monitor KOMTRAX telematics data for fuel consumption spikes and hydraulic load frequency, which indicate efficiency loss or component strain before failure occurs.
Corrective & Common Repairs
Address frequent failures in the PC15MRX-1 by inspecting the hydraulic return filter housing for leaks and replacing the element at 500 hours. Check the air filter restriction indicator daily; clogged filters cause excessive soot in the engine oil and reduced power. Inspect the final drive planetary gears for oil leaks at the shaft seals, a common wear point. Verify the tension of the track chains and adjust the track adjusters to prevent derailment. Replace worn swing bearing bolts and check the swing gearbox oil for metal particulates during major services.
Overhaul & Rebuild Points
Plan for major component overhauls based on operating hours and fluid analysis results. The Komatsu 4D94LE engine typically requires valve clearance checks and injector testing around the 1000-hour mark. Hydraulic pump swash plates and piston shoes show wear signs through decreased flow and increased noise; rebuild or replace based on KOWA data. The swing bearing and slew ring should be inspected for play and pitting. Final drive planetary sets require overhaul when backlash exceeds specifications or oil contains significant gear wear metals.
Seasonal & Environment Servicing
In cold climates, use low-temperature hydraulic oil and ensure the coolant mixture provides adequate freeze protection for the Komatsu 4D94LE engine. Drain the fuel water separator daily to prevent ice blockages in the fuel line. In dusty environments, clean the radiator and oil cooler fins frequently to prevent overheating. Inspect the air filter pre-cleaner and outer element more often. In high-humidity or coastal areas, check for corrosion on electrical connectors and the battery terminals, and ensure the DEF system is protected from contamination.
PC15MRX-1(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 → |
| 20T-98-72460 | Plate? Caution,Engine Oil Filter | Lubrication service | Check fitment → |
| 20T-98-82450 | Plate? Caution,Engine Oil Filter | Lubrication service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
PC15MRX-1(S/N 10001-UP) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| CA115 | Engine crankshaft speed sensor failure | Faulty crankshaft speed sensor, damaged wiring harness, or corroded connector at the sensor pin. | Inspect the sensor wiring and connector for damage or corrosion. Test sensor voltage output. Replace the speed sensor if the signal is absent or erratic. |
| CA441 | Battery voltage too low | Weak or discharged battery, failing alternator, or loose/corroded battery terminals. | Check battery charge state and terminal tightness. Test alternator output voltage. Replace battery or alternator if specifications are not met. |
| CA442 | Battery voltage too high | Faulty voltage regulator, failing alternator, or open ground connection in the charging circuit. | Inspect the alternator and voltage regulator. Check all ground connections for corrosion or looseness. Replace the alternator if output exceeds limits. |
| CA122 | Intake air pressure sensor feedback voltage too high | Faulty intake air pressure sensor, shorted sensor wiring, or sensor power supply issue. | Check the sensor connector and wiring for shorts. Verify the 5V sensor supply voltage. Replace the intake air pressure sensor if the circuit is intact. |
| CA123 | Intake air pressure sensor feedback voltage too low | Faulty intake air pressure sensor, open sensor wiring, or disconnected sensor plug. | Inspect the sensor connector for disconnection or corrosion. Check wiring for opens. Replace the sensor if the wiring is verified good. |
| CA153 | Intake air temperature sensor feedback voltage too high | Faulty intake air temperature (IAT) sensor, shorted sensor wiring, or internal sensor failure. | Check the IAT sensor connector and wiring for shorts. Test sensor resistance/voltage. Replace the IAT sensor if the circuit is functional. |
| CA154 | Intake air temperature sensor feedback voltage too low | Faulty intake air temperature (IAT) sensor, open sensor wiring, or disconnected sensor plug. | Inspect the IAT sensor connector for disconnection or corrosion. Check wiring for opens. Replace the sensor if the wiring is verified good. |
| CA451 | Common rail pressure sensor feedback value too high | Faulty rail pressure sensor, actual overpressure condition, or sensor signal circuit error. | Verify actual rail pressure with a mechanical gauge. Check the sensor wiring and connector. Replace the pressure sensor if the signal is inaccurate. |
| CA452 | Common rail pressure sensor feedback value too low | Faulty rail pressure sensor, actual low pressure condition, or sensor signal circuit error. | Verify actual rail pressure with a mechanical gauge. Check the sensor wiring and connector. Replace the pressure sensor if the signal is inaccurate. |
| E10 | Engine controller power failure | Blown fuse, open power wire to the ECM, or poor ground connection for the engine controller. | Check the ECM power fuses and relays. Inspect the main power and ground wiring harness connections at the ECM. Repair open circuits or replace fuses. |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
PC15MRX-1(S/N 10001-UP) attachments & work tools
Buckets
The Komatsu PC15MRX-1 (S/N 10001-UP) is a 1.5-ton class mini-excavator. Factory specifications and aftermarket listings indicate a standard bucket width of approximately 18 inches (457 mm). Typical capacities for this class range from 0.008 m³ to 0.08 m³ depending on the specific bucket type (e.g., digging, grading, or trenching). Pin-on mounting is standard for this serial range, with quick-coupler compatibility determined by the specific attachment bracket installed on the dipper stick.
Hydraulic hammers
For the 1.5-ton operating weight class of the PC15MRX-1, compatible hydraulic breakers typically fall in the 1.2-ton to 1.8-ton breaker weight range. Aftermarket suppliers list hydraulic mulchers and breakers sized for 1.5-ton to 1.8-ton excavators as direct fits. The machine's hydraulic flow must be verified against the breaker's required GPM/L/min and pressure (bar/psi) specifications to ensure effective operation without damaging the main pump.
Quick couplers
The PC15MRX-1 (S/N 10001-UP) supports hydraulic quick hitch couplers. Aftermarket catalogs list hydraulic quick hitch couplers as available options for this model. Semi-quick hitch and spring quick hitch types are also listed in the broader attachment ecosystem for this size class. The specific coupler type (e.g., pin-grabber vs. hook-type) depends on the bucket pin diameter and the mounting bracket configuration.
Thumbs/grapples
Hydraulic thumbs and mechanical grapples are available for the PC15MRX-1. Listings show hydraulic thumbs and 3+2 or 4+3 finger mechanical grapples sized for 1.5-ton to 1.8-ton excavators. These attachments typically mount to the dipper stick via a specific bracket kit that replaces or supplements the standard bucket pin bosses. The thumb cylinder requires a dedicated hydraulic circuit from the excavator's auxiliary lines.
Rippers
Ripper teeth and mounting brackets are listed as available attachments for the PC15MRX-1. These are typically designed for breaking hard soil or rock and mount to the dipper stick. The specific tooth profile and shank style must match the ripper bracket model compatible with the PC15MRX-1's stick geometry. Verification of the ripper's hydraulic requirements (if powered) or mechanical load limits is necessary.
Hydraulic-kit notes
The PC15MRX-1 (S/N 10001-UP) utilizes Komatsu EO, TO, or AXO hydraulic fluids as per factory specifications. Auxiliary hydraulic circuits for attachments like thumbs, breakers, or grapples require verification of flow rate and pressure ratings in the operation and maintenance manual. High-flow circuits are not standard for this class; standard flow is typical, and breaker performance depends on matching the tool's requirements to the machine's available hydraulic output.
All PC15MRX-1(S/N 10001-UP) assemblies by section
Every catalogued assembly group for the Komatsu PC15MRX-1(S/N 10001-UP). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
3d68e-3k Engine S/N 03402-Up
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Air Cleaner(#30001-)
| YM***40 | Valve,Unloader | 1 |
| YM***70 | Cover | 1 |
| YM***00 | Air Cleaner Ass'Y | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k 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 : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Alternator (Inner Parts)(#30001-)
| YM***00 | Stator Ass'Y | 1 |
| YM***02 | Alternator A. (20a) | 1 |
| YM***00 | Nut,Ball | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Alternator And Mounting(#30001-)
| YM***02 | Bolt Plated | 1 |
| YM***02 | Nut | 1 |
| YM***51 | Bolt | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Camshaft And Tappet
| YM***00 | Tappet | 6 |
| YM***50 | Retainer, Bearing | 1 |
| YM***22 | Screw | 2 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Crankshaft (Notrh America Spec.)(#30001-)
| YM***00 | Gear,Crank | 1 |
| YM***80 | Bolt | 1 |
| YM***41 | Washer | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Crankshaft(#30001-)
| YM***00 | Gear,Crank | 1 |
| YM***80 | Bolt | 1 |
| YM***41 | Washer | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Cylinder Block
| YM***00 | Plug | 2 |
| YM***00 | Main Metal Ass'Y (Std) | 4 |
| YM***00 | Plug | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k 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 : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Cylinder Head Cover(#30001-)
| YM***51 | Cap, Lub. Oil Supply | 1 |
| YM***60 | Joint | 1 |
| YM***10 | Gasket,Head Cover (Kit) | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Cylinder Head(#30001-)
| YM***10 | Valve, Exhaust | 3 |
| YM***40 | Seat,Intake And Exhaust (Kit) | 6 |
| YM***80 | Plug | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k 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 : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Drive Gear (North America Spec.)(#30001-)
| YM***22 | Retainer, Idle Gear | 1 |
| YM***00 | Ring, Snap | 1 |
| YM***52 | Shaft,Idler Gear | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Electrical Parts (Forwerded Individually Parts)(#30001-)
| YM***10 | Relay,Stop Solenoid | 1 |
| YM***10 | Limiter,Current | 1 |
| YM***20 | Time Switch | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Exhaust Manifold(#30001-)
| YM***02 | Stud | 2 |
| YM***02 | Nut | 2 |
| YM***20 | Stud Bolt | 4 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Flywheel And Flywheel Housing(#30001-)
| YM***20 | Bolt Plated | 3 |
| YM***01 | Housing,Flywheel | 1 |
| YM***20 | Parallel Pin | 2 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Front Cover(#30001-)
| YM***51 | Cap, Lub. Oil Supply | 1 |
| YM***40 | O-Ring,Drain Plug | 1 |
| YM***40 | O-Ring (Kit) | 2 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Front Hanger(#30001-)
| YM***10 | Hook | 1 |
| YM***42 | Screw | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Fuel Filter And Piping(#30001-)
| YM***00 | Fuel Feed Pump, Assembly | 1 |
| YM***80 | Pipe | 1 |
| YM***80 | Pipe | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Fuel Filter(#30001-)
| YM***40 | Lever | 1 |
| YM***00 | O-Ring (Kit) | 1 |
| YM***50 | Cartridge | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Fuel Injection Pump (Pump) (Inner Parts)(#30001-)
| YM***00 | Washer,Spring | 2 |
| YM***00 | Washer | 2 |
| YM***02 | Screw | 2 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Fuel Injection Pump And Piping(#30001-)
| YM***20 | Retainer, Pipe | 1 |
| YM***30 | Pipe,Injection? No.3 | 1 |
| YM***10 | Pipe,Injection? No.1 | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Fuel Nozzle And Spill Hose(#30001-)
| YM***40 | Spacer, Valve Stop | 1 |
| YM***01 | Swivel Joint, Assembly | 1 |
| YM***00 | Fuel Injection Valve, Assembly | 3 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Gasket Kit(#30001-)
| YM***10 | Gasket, Suction Manifold | 1 |
| YM***10 | Gasket,Head Cover (Kit) | 1 |
| YM***01 | Gasket (Kit) | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Glow Plug
| YM***00 | Glow Plug | 3 |
| YM***20 | Connection Plugs | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Governor Control (North America Spec.)(#30001-)
| YM***00 | Pin, Cotter | 1 |
| YM***00 | Retainer, Shaft | 1 |
| YM***30 | Screw,Adjust | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Governor Control(#30001-)
| YM***00 | Pin, Cotter | 1 |
| YM***00 | Retainer, Shaft | 1 |
| YM***30 | Screw,Adjust | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Lubricating Oil Pump(#30001-)
| YM***22 | Screw | 2 |
| YM***81 | Pipe,Inlet | 1 |
| YM***30 | O-Ring (Kit) | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Muffler(#30001-)
| YM***10 | Silencer | 1 |
| YM***01 | Gasket (Kit) | 1 |
| YM***11 | Gasket,Muffler (Kit) | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Oil Filter
| YM***50 | Nut | 1 |
| YM***00 | Valve Ass'Y | 1 |
| YM***50 | Cartridge,Engine Oil | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Oil Pan(#30001-)
| YM***52 | Bolt Plated | 20 |
| YM***90 | Oil Pan Ass'Y | 1 |
| YM***21 | Spacer | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Piston And Connecting Rod(#30001-)
| YM***00 | Piston Ring Ass'Y | 1 |
| YM***10 | Bearing (--0.25 mm) | 1 |
| YM***80 | Piston Ass'Y | 3 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Rear Hanger(#30001-)
| YM***00 | Hook,Front | 1 |
| YM***62 | Bolt,(For Shipping) | 2 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k 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 : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Starting Motor (0.8kw) (Inner Parts)(#30001-)
| YM***00 | Stopper Set | 1 |
| YM***40 | Cover Ass'Y | 1 |
| YM***50 | Brush (+) | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Starting Motor And Mounting (0.8kw)(#30001-)
| YM***52 | Screw | 2 |
| (Y***0) | Starting Motor Ass'Y,(0.8kw) (See Fig.A6210-C0a1) | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k 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 : Pc15mrx-1(S/N 10001-Up) : 3d68e-3k Engine S/N 03402-Up : Water Pump And Cooling Fan(#30001-)
| YM***20 | Gasket (Kit) | 1 |
| YM***60 | Spacer | 1 |
| YM***52 | Screw | 3 |
Accessory
Komatsu : Pc15mrx-1(S/N 10001-Up) : Accessory : Tool
| 07***50 | Pump, (Bellows Type) | 1 |
| 07***03 | Cartridge - Grease | 1 |
| 07***17 | Nozzle | 1 |
Cooling System
Komatsu : Pc15mrx-1(S/N 10001-Up) : Cooling System : Cooling (Radiator And Engine Piping)
| 01***12 | Bolt - Front Cover Mounting | 4 |
| 01***16 | Bolt - Seat And Tether Belt Mounting | 15 |
| 01***25 | Bolt,(Rear Attachment Less) | 4 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Cooling System : Cooling (Radiator Reserve Tank And Piping)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
Electrical System
Komatsu : Pc15mrx-1(S/N 10001-Up) : Electrical System : Battery And Wiring
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***12 | Bolt,(With Speedometer) | 2 |
| 01***05 | Nut,(For Air Conditioner Less), Nut | 4 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Electrical System : Electrical Wiring (Main Harness Line)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 4 |
| 01***10 | Screw,(Without Radio) | 4 |
Engine Related Parts
Komatsu : Pc15mrx-1(S/N 10001-Up) : Engine Related Parts : Dumper
| 01***30 | Bolt,(With Body Positioner) | 8 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
| 04***08 | Adapter Sleeves | 6 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Engine Related Parts : Engine Mounting (Air Cleaner And Muffler Related Parts)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 6 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
Komatsu : Pc15mrx-1(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 |
Fuel Tank And Related Parts
Komatsu : Pc15mrx-1(S/N 10001-Up) : Fuel Tank And Related Parts : Fuel Tank (Fuel Piping)
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***16 | Screw | 2 |
| 01***10 | Bolt - Relay And Flasher Mounting | 2 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Fuel Tank And Related Parts : Fuel Tank (Tank And Related Parts)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***14 | Screw | 11 |
| 01***10 | Nut,(Without Air Conditioner) | 2 |
Guard
Komatsu : Pc15mrx-1(S/N 10001-Up) : Guard : Additional Counter Weight (Mrx)
| 01***30 | Bolt - M8 X 30lg | 1 |
| 01***05 | Screw | 2 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Guard : Engine Hood (Front And Side Cover)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 11 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 5 |
| 01***16 | Screw | 2 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Guard : Engine Hood (Rear Cover)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
Hydraulic System
Komatsu : Pc15mrx-1(S/N 10001-Up) : Hydraulic System : Hydraulic Piping (Arm And Bucket Cylinder Line)
| 08***36 | Band,(For 2nd Travel Speed) (Op) | 3 |
| 20***92 | Tube | 1 |
| 22***62 | Hose | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Hydraulic System : Hydraulic Piping (Attachment Line) (1-Way) (In Revolving Frame)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
| 07***23 | O-Ring,(For 2nd Travel Speed) (Op) | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Hydraulic System : Hydraulic Piping (Blade Cylinder Line) (Fixed Gauge)
| 22***21 | Hose | 1 |
| 22***40 | Hose | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Hydraulic System : Hydraulic Piping (Blade Cylinder Line) (Variable Gauge)
| 22***20 | Hose | 1 |
| 22***30 | Hose | 1 |
| 22***40 | Hose | 2 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Hydraulic System : Hydraulic Piping (Boom Cylinder And Boom Swing Cylinder Line)
| 22***31 | Hose | 1 |
| 22***41 | Hose | 1 |
| 22***52 | Hose | 2 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Hydraulic System : Hydraulic Piping (Delivery Line)
| 20***11 | Hose,Blade Cylinder | 1 |
| 22***11 | Hose | 1 |
| 22***21 | Hose | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Hydraulic System : Hydraulic Piping (Drain Line)
| 22***21 | Hose | 1 |
| 22***31 | Hose | 1 |
| 22***41 | Hose | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Hydraulic System : Hydraulic Piping (Return Line)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 6 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Hydraulic System : Hydraulic Piping (Suction Line)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
| 07***34 | O-Ring, O-Ring,Drain Plug? R.H. Half Tank | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Hydraulic System : Hydraulic Piping (Swing Motor Line)
| 22***91 | Hose | 1 |
| 22***70 | Hose | 2 |
| 22***80 | Hose | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Hydraulic System : Hydraulic Piping (Travel Motor Line)
| 22***11 | Hose | 1 |
| 22***81 | Hose | 1 |
| 22***10 | Hose | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Hydraulic System : Hydraulic Piping (Variable Gauge Change Valve)
| 01***12 | Bolt - Front Cover Mounting | 1 |
| 01***55 | Screw | 2 |
| 01***23 | Washer,(With Auto Emergency Steering) | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Hydraulic System : Hydraulic Piping (Variable Gauge Check Valve)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
| 07***11 | O-Ring,(Tm8202-009) | 2 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Hydraulic System : Hydraulic Tank
| 01***25 | Bolt,(Rear Attachment Less) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Hydraulic System : Main Pump (Mounting And Elbow)
| 01***30 | Bolt,(Not Used When Towing Winch) | 2 |
| 01***25 | Bolt,See Fig. K4010-65a0 | 4 |
| 01***16 | Washer,(With Water Separator) | 4 |
Main/Revolving Frame And Related Parts
Komatsu : Pc15mrx-1(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 : Pc15mrx-1(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 : Pc15mrx-1(S/N 10001-Up) : Main/Revolving Frame And Related Parts : Revolving Frame
| 01***12 | Bolt,(With Speedometer) | 9 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 1 |
| 07***50 | Seal,(Y1620-41a0a-3) | 2 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Main/Revolving Frame And Related Parts : Revolving Frame (Lubricating)
| 07***00 | Fitting, Grease - Upper Hinge Pin | 2 |
| 21***11 | Nipple | 4 |
| 22***10 | Tube | 2 |
Marks And Plates
Komatsu : Pc15mrx-1(S/N 10001-Up) : Marks And Plates : Marks And Plates
| 09***00 | Plate? Safety,Operating Pattern Table (Jis) | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Marks And Plates : Marks And Plates (English) (Fixed Gauge)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 8 |
| 09***30 | Plate? Name,(Limited Supply) | 1 |
| 09***05 | Plate? Name,Tops (Limited Supply) | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Marks And Plates : Marks And Plates (English) (Variable Gauge)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 8 |
| 09***30 | Plate? Name,(Limited Supply) | 1 |
| 09***05 | Plate? Name,Tops (Limited Supply) | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Marks And Plates : Marks And Plates (For Additional Counter Weight) (Mrx)
| 01***16 | Washer,(For 35a Alternator) | 2 |
| 21***60 | Screw | 2 |
| 22***00 | Plate Ass'Y,Mrx | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Marks And Plates : Marks And Plates (For Counter Weight) (Mr)
| 01***16 | Washer,(For 35a Alternator) | 2 |
| 21***60 | Screw | 2 |
| 22***20 | Plate | 1 |
Operator'S Compartment And Control System
Komatsu : Pc15mrx-1(S/N 10001-Up) : Operator'S Compartment And Control System : Attachment Control Pedal (1-Way)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 2 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***11 | Nut (Welded) | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Operator'S Compartment And Control System : Floor Cover (Floor Plate And Foot Rest)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***20 | Bolt,(Forwarded Individually Parts) | 9 |
| 01***16 | Washer,Radio Controlled Slag Handling | 9 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Operator'S Compartment And Control System : Floor Mat
| 22***10 | Mat,Floor | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Operator'S Compartment And Control System : Floor Mat (For Attachment)
| 22***20 | Mat,Floor | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Operator'S Compartment And Control System : Main Control (Blade Control Lever And Linkage)
| 01***16 | Bolt - Box Mounting | 1 |
| 01***05 | Nut,L.H. (For Trimming Dozer) | 1 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Operator'S Compartment And Control System : Main Control (Boom Swing Lever And Linkage)
| 01***30 | Bolt - M8 X 30lg | 1 |
| 01***30 | Bolt,Stopper | 2 |
| 01***16 | Screw | 2 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Operator'S Compartment And Control System : Main Control (Linkage And Related Parts)
| 01***16 | Bolt - Box Mounting | 1 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 2 |
| 01***23 | Washer,(With Auto Emergency Steering) | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Operator'S Compartment And Control System : Main Control (Main Control Bracket Mounting Parts)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Operator'S Compartment And Control System : Main Control (Main Control Valve And Connecting Parts? 1/2)
| 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) | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Operator'S Compartment And Control System : Main Control (Main Control Valve And Connecting Parts? 2/2)
| 07***23 | O-Ring,(For 2nd Travel Speed) (Op) | 10 |
| 07***23 | O-Ring,(For 2nd Travel Speed) (Op) | 16 |
| 07***10 | Elbow,(For Long Lever Control) | 2 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Operator'S Compartment And Control System : Main Control (Main Control Valve And Connecting Parts? 2/2) (2way)
| 07***23 | O-Ring,(For 2nd Travel Speed) (Op) | 12 |
| 07***23 | O-Ring,(For 2nd Travel Speed) (Op) | 18 |
| 07***10 | Elbow,(For Long Lever Control) | 2 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Operator'S Compartment And Control System : Main Control (Main Control Valve Piping) (Arm? Swing? Boom? Bucket)
| 20***11 | Hose,Blade Cylinder | 1 |
| 21***10 | Band? Yellow | 2 |
| 21***20 | Band? Black | 2 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Operator'S Compartment And Control System : Main Control (Travel Lever And Linkage)
| 01***16 | Bolt - Box Mounting | 1 |
| 01***30 | Bolt,Stopper | 4 |
| 01***25 | Screw | 2 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Operator'S Compartment And Control System : Main Control (Travel Lock Control Cable)
| 01***12 | Bolt - Front Cover Mounting | 1 |
| 01***16 | Bolt - Seat And Tether Belt Mounting | 3 |
| 01***30 | Bolt - M8 X 30lg | 3 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Operator'S Compartment And Control System : Main Control Lever (Travel Change Pedal)
| 01***16 | Bolt - Box Mounting | 3 |
| 01***16 | Bolt - Seat And Tether Belt Mounting | 3 |
| 01***30 | Bolt,Stopper | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Operator'S Compartment And Control System : Operator'S Seat (Fixed Type)
| 01***25 | Bolt,(Rear Attachment Less) | 6 |
| 01***35 | Bolt,(For Fix Position) | 2 |
| 01***30 | Bolt,(With Body Positioner) | 3 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Operator'S Compartment And Control System : Operator'S Seat (Suspension Type)
| 01***25 | Bolt,(Rear Attachment Less) | 2 |
| 01***35 | Bolt,(For Fix Position) | 2 |
| 01***30 | Bolt,(With Body Positioner) | 3 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Operator'S Compartment And Control System : Operator'S Seat Stand (Blade Control Lever)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***30 | Bolt,Stopper | 2 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 2 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Operator'S Compartment And Control System : Operator'S Seat Stand (Electrical System)
| 01***12 | Bolt - Front Cover Mounting | 1 |
| 01***16 | Bolt - Seat And Tether Belt Mounting | 5 |
| 01***55 | Screw | 2 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Operator'S Compartment And Control System : Operator'S Seat Stand (Electrical System) (Fixed Gauge)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 5 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***12 | Bolt,(See Fig. K0210-16a0) | 2 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Operator'S Compartment And Control System : Operator'S Seat Stand (L.H. Control Lever And P.P.C. Piping) (Arm? Swing)
| 01***25 | Bolt,(Rear Attachment Less) | 3 |
| 01***30 | Bolt,(With Body Positioner) | 1 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 3 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Operator'S Compartment And Control System : Operator'S Seat Stand (P.P.C. Lock Lever)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Operator'S Compartment And Control System : Operator'S Seat Stand (P.P.C. Valve Line) (Arm? Swing? Boom? Bucket)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 4 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 8 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 12 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Operator'S Compartment And Control System : Operator'S Seat Stand (R.H. Control Lever And P.P.C. Piping) (Boom? Bucket)
| 01***25 | Bolt,(Rear Attachment Less) | 3 |
| 01***20 | Bolt,(For Mono Lever Steering) | 3 |
| 01***30 | Bolt,(With Body Positioner) | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Operator'S Compartment And Control System : Operator'S Seat Stand (Stand Bracket Accessory)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***20 | Bolt | 8 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Operator'S Compartment And Control System : Operator'S Seat Stand (Stand Bracket And Accelerator Control Lever)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 1 |
| 01***30 | Bolt,Stopper | 1 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Operator'S Compartment And Control System : Operator'S Seat Stand (Stand Bracket Mounting Parts)
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***40 | Bolt (Op) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 6 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Operator'S Compartment And Control System : Seat Belt
| 20***12 | Seat Belt Ass'Y | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Operator'S Compartment And Control System : Tops Canopy
| 01***20 | Bolt,(For Mono Lever Steering) | 6 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 4 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 4 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Operator'S Compartment And Control System : Travel Pedal
| 01***25 | Bolt,(Rear Attachment Less) | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
| 22***10 | Pedal,L.H | 1 |
Service Kit And Component Parts
Komatsu : Pc15mrx-1(S/N 10001-Up) : Service Kit And Component Parts : Arm Cylinder (Inner Parts)
| 01***22 | Nut,(North America Spec.) | 1 |
| 07***55 | O-Ring,(F4350-62a1 -14 ) | 1 |
| 07***50 | Ring, Seal - Between Sections | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Service Kit And Component Parts : B00m Cylinder (Inner Parts)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 1 |
| 01***19 | Nut | 1 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Service Kit And Component Parts : Blade Cylinder (Inner Parts)
| 01***19 | Nut | 1 |
| 07***65 | O-Ring,(F5350-62a0 -14 ) | 1 |
| 07***70 | O-Ring (Kit) | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Service Kit And Component Parts : Boom Swing Cylinder (Inner Parts)
| 01***18 | Nut | 1 |
| 07***55 | O-Ring,(F4350-62a1 -14 ) | 1 |
| 07***60 | O-Ring,(F4350-59a0 -6 ) | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Service Kit And Component Parts : Bucket Cylinder (Inner Parts)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 1 |
| 01***18 | Nut | 1 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Service Kit And Component Parts : Hydraulic Pump (1/2) (Inner Parts)
| 22***00 | Pump Ass'Y | 1 |
| FU***05 | Bearing,Ball | 1 |
| FU***92 | Holder,Barrel (K1) | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Service Kit And Component Parts : Hydraulic Pump (2/2) (Inner Parts)
| FU***15 | Spring | 1 |
| FU***0A | Guide,Spring | 1 |
| FU***35 | Screw | 2 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Service Kit And Component Parts : Ls Valve
| 07***34 | O-Ring,(For Without Brake Assistor) | 1 |
| 70***60 | Seal | 1 |
| 70***10 | Valve Ass'Y,Ls | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Service Kit And Component Parts : Main Valve (8-Valve) (1/9)
| 72***01 | Control Valve | 1 |
| 72***02 | Control Valve,Main Control | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Service Kit And Component Parts : Main Valve (8-Valve) (2/9)
| 01***30 | Bolt - M8 X 30lg | 4 |
| 01***23 | Washer,(For Shipping) | 8 |
| 07***04 | O-Ring | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Service Kit And Component Parts : Main Valve (8-Valve) (3/9)
| 07***04 | O-Ring | 1 |
| 07***23 | O-Ring; Was 07002-10823, O-Ring,(Not Shown) | 1 |
| 70***30 | Ball | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Service Kit And Component Parts : Main Valve (8-Valve) (4/9)
| 01***10 | Screw | 11 |
| 01***12 | Bolt | 3 |
| 01***16 | Screw | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Service Kit And Component Parts : Main Valve (8-Valve) (5/9)
| 07***23 | O-Ring (K8) | 14 |
| 72***60 | O-Ring | 1 |
| 72***10 | Plug | 14 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Service Kit And Component Parts : Main Valve (8-Valve) (6/9)
| 01***30 | Screw | 3 |
| 01***40 | Screw | 4 |
| 07***04 | O-Ring | 2 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Service Kit And Component Parts : Main Valve (8-Valve) (7/9)
| 70***10 | O-Ring (Kit) | 1 |
| 70***20 | Ring, Back-Up | 1 |
| 70***90 | O-Ring,Suction | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Service Kit And Component Parts : Main Valve (8-Valve) (8/9)
| 07***34 | O-Ring,(For 2-Actuater Attachment) | 1 |
| 70***10 | O-Ring (Kit) | 1 |
| 72***01 | Valve Ass'Y,Relief | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Service Kit And Component Parts : Main Valve (8-Valve) (9/9)
| 07***34 | O-Ring,(For Without Brake Assistor) | 3 |
| 70***40 | O-Ring | 1 |
| 72***00 | Valve Ass'Y,Suction | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Service Kit And Component Parts : Ppc Valve
| 01***20 | Bolt,(Without Air Con. Or Heater) | 4 |
| 07***70 | O-Ring,(For Intake Air Cover) | 1 |
| 07***20 | O-Ring,(0202-007) | 4 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Service Kit And Component Parts : Ppc Valve (For Attachment)
| 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 : Pc15mrx-1(S/N 10001-Up) : Service Kit And Component Parts : Swivel Joint (Inner Parts) (For Fixed Gauge)
| 01***16 | Bolt (Op) | 4 |
| 04***18 | Ring,Snap (With Emergency Steering) | 1 |
| 70***81 | Swivel Joint Ass'Y | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Service Kit And Component Parts : Swivel Joint (Inner Parts) (For Variable Gauge)
| 01***16 | Bolt (Op) | 4 |
| 04***18 | Ring,Snap (With Emergency Steering) | 1 |
| 70***73 | Swivel Joint Ass'Y | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Service Kit And Component Parts : Track Frame Variable Gauge Cylinder (Inner Parts)
| 01***18 | Nut | 1 |
| 07***55 | O-Ring,(F4350-62a1 -14 ) | 1 |
| 07***60 | O-Ring,(F4350-59a0 -6 ) | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Service Kit And Component Parts : Travel Motor (1/3) (Inner Parts)
| 22***01 | Travel Motor Ass'Y | 2 |
| FU***37 | Ring,Snap (K-1) | 7 |
| FU***06 | Gear,B1 | 4 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Service Kit And Component Parts : Travel Motor (2/3) (Inner Parts)
| FU***87 | Plug (K-4) | 1 |
| FU***32 | Ball | 2 |
| FU***BS | Motor Ass'Y | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Service Kit And Component Parts : Travel Motor (3/3) (Inner Parts)
| FU***36 | Service Kit,Hydraulic Motor | 1 |
| FU***27 | Plug | 2 |
| FU***70 | O-Ring | 2 |
Swing Circle And Related Parts
Komatsu : Pc15mrx-1(S/N 10001-Up) : Swing Circle And Related Parts : Swing Circle
| 01***50 | Bolt | 34 |
| 01***32 | Washer,(With Auto Emergency Steering) | 16 |
| 04***28 | Pin, Dowel - Transmission Case, Pin-Dowel | 2 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Swing Circle And Related Parts : Swing Motor (Mounting)
| 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 : Pc15mrx-1(S/N 10001-Up) : Swing Circle And Related Parts : Swivel Joint (Swivel Joint And Mounting) (Fixed Gauge)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 6 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Swing Circle And Related Parts : Swivel Joint (Swivel Joint And Mounting) (Variable Gauge)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 6 |
Travel And Lower Piping
Komatsu : Pc15mrx-1(S/N 10001-Up) : Travel And Lower Piping : Final Drive (Travel Motor Mounting)
| 01***20 | Bolt, Adapter Mounting | 16 |
| 07***08 | O-Ring,(Tm8202-005) | 2 |
| 07***14 | O-Ring,(F4350-61a0a-20 ) | 4 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Travel And Lower Piping : Hydraulic Piping (Lower Line) (Fixed Gauge)
| 22***11 | Hose | 4 |
| 22***21 | Hose | 2 |
| 22***31 | Hose | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Travel And Lower Piping : Hydraulic Piping (Lower Line) (Variable Gauge)
| 22***10 | Hose | 4 |
| 22***20 | Hose | 1 |
| 22***30 | Hose | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Travel And Lower Piping : Sprocket
| 01***25 | Bolt,See Fig. K4010-65a0 | 18 |
| 22***10 | Sprocket | 2 |
Under Carriage
Komatsu : Pc15mrx-1(S/N 10001-Up) : Under Carriage : Carrier Plate
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 22***10 | Plate | 2 |
Komatsu : Pc15mrx-1(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 : Pc15mrx-1(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 : Pc15mrx-1(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 : Pc15mrx-1(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 : Pc15mrx-1(S/N 10001-Up) : Under Carriage : Track Frame (1/2) (Variable Gauge)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 16 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 16 |
| 04***12 | Lock,(With Rain Cap) | 8 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Under Carriage : Track Frame (2/2) (Variable Gauge)
| 01***20 | Bolt,(For Mono Lever Steering) | 8 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
| 04***10 | Lock,Plate | 4 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Under Carriage : Track Frame (Fixed Gauge)
| 22***10 | Frame,Track | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Under Carriage : Track Frame Cover (Fixed Gauge)
| 01***12 | Bolt,(With Speedometer) | 10 |
| 01***80 | Screw | 2 |
| 01***16 | Bolt - Starting Motor Ground Cable | 4 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Under Carriage : Track Frame Cover (Variable Gauge)
| 01***12 | Bolt,(With Speedometer) | 2 |
| 01***80 | Screw | 2 |
| 01***16 | Bolt - Starting Motor Ground Cable | 4 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Under Carriage : Track Guard (For Steel Shoe)
| 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 : Pc15mrx-1(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 : Pc15mrx-1(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 : Pc15mrx-1(S/N 10001-Up) : Under Carriage : Track Shoe (Rubber Shoe)
| 22***11 | Rubber Shoe Ass'Y | 2 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Under Carriage : Track Shoe (Steel Shoe)
| 20***40 | Bushing | 2 |
| 20***60 | Pin,Regular Paint(1) | 70 |
| 20***40 | Pin,Master Paint(1) | 2 |
Work Equipment
Komatsu : Pc15mrx-1(S/N 10001-Up) : Work Equipment : Arm (Arm And Pin)
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 04***10 | Lock,Plate | 2 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Work Equipment : Arm Cylinder
| (7***0) | Cylinder Ass'Y,Arm | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Work Equipment : Blade (Blade And Pin) (Fixed Gauge)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
| 20***20 | Bushing | 2 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Work Equipment : Blade (Blade And Pin) (Variable Gauge)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Work Equipment : Blade Cylinder
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***16 | Bolt, Mount Solenoid Valve | 3 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Work Equipment : Boom
| 07***35 | Seal,Dust (Kit) | 2 |
| 20***20 | Bushing | 2 |
| 22***20 | Boom Ass'Y | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Work Equipment : Boom (For Breaker Or Attachment)
| 07***35 | Seal,Dust (Kit) | 2 |
| 20***20 | Bushing | 2 |
| 22***00 | Boom Ass'Y | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Work Equipment : Boom (Mounting Pin)
| 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 : Pc15mrx-1(S/N 10001-Up) : Work Equipment : Boom (Work Lamp And Related Parts)
| 01***55 | Bolt - Mount Cage To Transmission Case | 1 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 1 |
| 20***50 | Work Lamp Ass'Y | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Work Equipment : Boom (Work Lamp And Related Parts) (For Breaker Or Attachment)
| 01***55 | Bolt - Mount Cage To Transmission Case | 1 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 1 |
| 20***50 | Work Lamp Ass'Y | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Work Equipment : Boom Cylinder (Boom Cylinder And Cover)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 1 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 1 |
| 20***10 | Guide | 2 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Work Equipment : Bucket Cylinder
| (7***0) | Cylinder,Bucket | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Work Equipment : Bucket Link
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 2 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 1 |
Komatsu : Pc15mrx-1(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 | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Work Equipment : Bucket Pin (Breaker Arm)
| 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 : Pc15mrx-1(S/N 10001-Up) : Work Equipment : Bucket Quick Coupler
| 01***70 | Bolt - Bracket And Oil Inlet Tubemounting | 1 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 2 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 1 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Work Equipment : Bucket? 0.018m3 (Mini 0.022m3) Width 300mm
| 01***34 | Bolt | 6 |
| 01***13 | Nut | 6 |
| 02***50 | Bolt | 4 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Work Equipment : Bucket? 0.028m3 (Mini 0.04m3) Width 400mm
| 01***34 | Bolt | 6 |
| 01***13 | Nut | 6 |
| 02***50 | Bolt | 6 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Work Equipment : Bucket? 0.033m3 (Mini 0.044m3) Width 450mm
| 01***34 | Bolt | 6 |
| 01***13 | Nut | 6 |
| 02***50 | Bolt | 8 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Work Equipment : Hydraulic Piping (Breaker Arm Line) (For Long Arm)
| 01***35 | Bolt,(F4320-52a0 -5 ) | 4 |
| 01***60 | Bolt,(F4320-52a0 -5- ) | 2 |
| 01***65 | Bolt - Return Line And Suction Linehose Clamps | 4 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Work Equipment : Hydraulic Piping (Breaker Arm Or Attachment Line)
| 01***35 | Bolt,(F4320-52a0 -5 ) | 4 |
| 01***60 | Bolt,(F4320-52a0 -5- ) | 2 |
| 01***65 | Bolt - Return Line And Suction Linehose Clamps | 4 |
Komatsu : Pc15mrx-1(S/N 10001-Up) : Work Equipment : Long Arm (Arm And Pin)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 4 |
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
PC15MRX-1(S/N 10001-UP) serial number reference
The serial number plate is located on the right-hand side of the cab on the lower frame, typically just behind the front idler or beneath the operator's window. The prefix is the numeric sequence starting at 10001; for this model, the prefix is the serial number itself as no 3-character alpha prefix is standard for this specific serial range in the provided documentation.
| Prefix | Identifies | Notes |
|---|---|---|
| 10001-UP | Standard PC15MRX-1 | Serial range 10001-UP identifies the PC15MRX-1 family. The '1' in the model name denotes the generation. No specific 3-character PIN prefixes are documented for this specific serial range in the provided sources; the machine uses a traditional model+serial format for this era. Verify with dealer for exact PIN structure if export-market emissions plate is present. |
Frequently asked questions
What engine does the PC15MRX-1 use?
The PC15MRX-1 is powered by a Komatsu 4D94LE diesel engine.
What is the operating weight of the PC15MRX-1?
The operating weight varies by configuration, counterweight, and attachment package, typically ranging within the compact excavator class under 20,000 lbs.
What model replaced the PC15MRX-1?
The PC15MRX-1 was succeeded by the PC15R-8 series in Komatsu's compact excavator lineup.
What PC15MRX-1(S/N 10001-UP) owners discuss
What is the engine designation for the Komatsu PC15MRX-1 (S/N 10001-UP)?
The Komatsu PC15MRX-1 (S/N 10001-UP) is powered by the Komatsu 3D94 engine. This is a 3-cylinder, turbocharged, aftercooled diesel engine. Note that earlier PC15 series models (such as the PC15-2 and PC15R-8) used the 3D78 or 3D68 engine families; the 3D94 is specific to the MRX-1 generation. Verify the exact engine code on the engine data plate, as regional emissions packages can alter specific component configurations while retaining the base 3D94 designation. Have your dealer verify the engine code against the machine's serial number to confirm the correct service manual and parts catalog.
How does the PC15MRX-1 hydraulic system behave under load, and what are common signs of degradation?
The PC15MRX-1 utilizes a load-sensing hydraulic system with proportional servo-controls. A common operational behavior is a loss of hydraulic power when the machine is hot, indicating internal leakage in the main pump or control valve as oil viscosity decreases. If all functions (boom, arm, bucket, swing, travel) become slow simultaneously, the issue typically lies in the hydraulic oil level, suction strainer, or main relief valve settings rather than individual cylinders. If only one function is slow, check the specific control valve spool, cylinder seals, or pilot pressure to that circuit. Ensure Komatsu EO or equivalent high-quality hydraulic oil is used; incorrect oil viscosity accelerates pump wear and causes sluggish response.
What are typical undercarriage wear patterns and maintenance issues for this mini-excavator class?
Mini-excavators like the PC15MRX-1 operate in tight spaces, leading to rapid undercarriage wear from side-loading and debris accumulation. Common issues include track tension loss due to frequent re-tensioning or seal failure in the tensioner. Check track rollers and idlers for flat spots or excessive play, which cause uneven wear and noisy operation. Mud or debris packed into the track frame increases rolling resistance and accelerates chain wear. Ensure track tension is set according to the factory specification; over-tensioning increases drivetrain load and fuel consumption, while under-tensioning causes derailment. Inspect the track guide shoes for wear, as excessive clearance can lead to track derailment during swing operations.
What are common electrical or sensor-related quirks for the PC15MRX-1?
The PC15MRX-1 relies on electronic controls for engine speed and hydraulic flow. Common electrical issues include intermittent starting or random shutdowns caused by unstable power supply or corroded ground connections. The electronic throttle control mechanism is a known failure point; the plastic gear can slip a tooth, causing erratic engine response or loss of power. Check all main battery cables and chassis grounds for corrosion. Intermittent fault codes often point to loose connectors in the wiring harness rather than sensor failure. Ensure the alternator is charging correctly, as low voltage can cause the electronic control unit to malfunction. Have your dealer verify the throttle control adjustment and sensor signals if erratic behavior persists.
What should be checked when buying a used PC15MRX-1 (S/N 10001-UP)?
When purchasing a used PC15MRX-1, verify the serial number is 10001 or higher to confirm it is the MRX-1 generation and not an earlier PC15-2 or PC15R-8. Check the hydraulic oil for metal particles or fuel contamination, which indicates pump or injector issues. Test all hydraulic functions for speed and power, both cold and hot, to identify internal leakage. Inspect the undercarriage for excessive wear, as replacement costs are high. Check the engine for white smoke (fuel injection issues) or black smoke (air restriction). Verify the operation of the swing brake by parking on a slope; the upper structure should not drift. Review the maintenance history for hydraulic filter changes, as neglected filters are a primary cause of pump failure. Have your dealer verify the engine serial number and hydraulic pump codes to ensure correct parts availability.
What are the key cooling system maintenance points for the PC15MRX-1?
The PC15MRX-1 cooling system includes the radiator, hydraulic oil cooler, and charge-air cooler. These coolers are stacked and prone to clogging with dust, chaff, and debris, leading to overheating during heavy work. Clean the cooler stack regularly using compressed air from the engine side outwards. Check the coolant level when the engine is cold. Inspect the fan belt for tension and wear. If the engine overheats, check the thermostat and water pump for proper operation. Ensure the coolant is Komatsu Super Coolant AF-NAC or equivalent; using plain water or incorrect coolant can cause corrosion and scaling. Have your dealer verify the cooling system pressure and thermostat operation if overheating occurs.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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