Komatsubulldozersmall ( - d39)
Komatsu D31P-20(S/N 45001-UP (For China / Trimming Dozer))
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu D31P-20 (S/N 45001-UP) is a compact crawler dozer designed for trimming and utility applications. This specific China-market configuration features the S4D102E turbocharged diesel engine, delivering 70 hp (52.2 kW) at 2350 rpm. The machine operates within a weight range of approximately 12,985 lb (5,890 kg) to 13,657.7 lb (6,195 kg) depending on specific configuration and attachments. It utilizes a Hydroshift transmission with three forward and three reverse gears for precise maneuvering.
Across the D31 series, evolution has focused on improving operator ergonomics through wrist-control single-lever joystick systems and enhancing hydraulic efficiency via gear-type pumps. This generation remains significant in the used parts market due to its robust mechanical components, such as the S4D102E engine and durable undercarriage design. The availability of standardized parts for the 45001-UP serial range makes it a cost-effective choice for fleet owners requiring reliable trimming performance.
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 D31P-20(S/N 45001-UP (For China / Trimming Dozer)) specifications
Engine
| Engine Model | S4D102E |
| Net Power | 70 hp (52.2 kW) |
| Power Measured @ RPM | 2350 rpm |
| Displacement | 238 cu in (3.9 L) |
| Aspiration | Turbocharged |
Weights
| Operating Weight | 13,657.7 lb (6,195 kg) |
| Max Operating Weight | 15,850 lb (7,205 kg) |
Dimensions
| Overall Length w/ Blade | 155.1 in (3/940 mm) |
| Width Over Tracks | 65 in (1650 mm) to 81 in (2050 mm) varies by configuration |
| Height to Top of Cab | 6.71 ft (2045 mm) to 81 in (2057 mm) varies by configuration |
| Ground Clearance | 14.2 in (360 mm) |
| Track Gauge (Standard) | 57 in (1450 mm) to 65 in (1650 mm) varies by configuration |
| Track Shoe Width | 23.63 in (600 mm) |
Performance
| Max Speed - Forward | 4.1 mph (6.5 km/h) |
| Max Speed - Reverse | 4.5 mph (7.2 km/h) |
| Max Drawbar Pull | 19,760 lb (8,960 kg) |
| Ground Pressure | 3.28 psi to 3.9 psi varies by configuration |
Blades
| Blade Width | 113.2 in (2875 mm) |
Service Capacities
| Fuel Capacity | 30.4 gal (115 L) |
| Engine Oil Capacity | 3.7 gal (14 L) |
| Cooling System Fluid Capacity | 5.9 gal (22 L) |
| Transmission/Powertrain Fluid Capacity | 3.5 gal (13 L) |
| Final Drives Fluid Capacity | 2.6 gal (9.5 L) to 3.2 gal (12 L) varies by track gauge |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
D31P-20(S/N 45001-UP (For China / Trimming Dozer)) fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (w/ filter) | 14 L (3.7 US gal / 3.1 imp gal) | Diesel engine oil, API CD/CC service class. SAE 30 for ambient above 0°C (32°F); SAE 10W-30 for -15°C to 35°C; SAE 10W below -15°C (5°F). Komatsu genuine engine oil (EO-series) or equivalent. |
| Cooling system | 22 L (5.8 US gal / 4.8 imp gal) | Clean water mixed with Komatsu genuine ethylene-glycol permanent-type antifreeze/coolant, ratio set for local minimum ambient temperature; add supplemental coolant additive per the periodic maintenance schedule. |
| Fuel tank | 115 L (30.4 US gal / 25.3 imp gal) | Diesel fuel, ASTM D975 No. 2-D for normal use; No. 1-D in cold climates. |
| Transmission/powertrain (powershift transmission) | 13 L (3.4 US gal / 2.9 imp gal) | SAE 30 powertrain oil, API CD/CC (Komatsu TO-series or equivalent); switch to SAE 10W in cold-climate operation. |
| Bevel gear/steering compartment | Varies by configuration/series: 20 L (5.3 US gal) to 47 L (12.4 US gal) | Same SAE 30 powertrain oil as the transmission (Komatsu TO-series or equivalent), API CD/CC; SAE 10W in cold climates. |
| Final drives (each) | Varies by configuration/series: 9.5 L (2.5 US gal) for 1450 mm track gauge; 1eler L (3.2 US gal) for 1650 mm wide-gauge | Same SAE 30 powertrain oil as the transmission and steering case (Komatsu TO-series or equivalent), API CD/CD; SAE 10W in cold climates. |
| Hydraulic system/tank | Not documented for this exact serial range — verify with your dealer | Same powertrain oil as transmission/final drive (SAE 30, Komatsu TO-series or equivalent), API CD/CC. |
| Grease | Apply at each fitting until fresh grease purges — no reservoir capacity applies. | Komatsu genuine multipurpose grease, NLGI No. 2 for normal temperatures; NLGI No. 0 or No. 1 for sub-freezing climates. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Komatsu D31P-20(S/N 45001-UP (For China / Trimming Dozer)) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
Servicing the D31P-20(S/N 45001-UP (For China / Trimming Dozer)) beyond the schedule
Predictive Maintenance & Fluid Analysis
Monitor engine oil and transmission fluid for particulate contamination to prevent premature wear of the S4D102E engine components. Regularly analyze hydraulic oil quality to detect gear-type pump degradation. Maintain strict adherence to cooling system fluid levels (5.9 gal / 22.3 L) to avoid overheating. Use high-quality Komatsu-spec fluids to protect the Hydroshift transmission planetary gears and ensure consistent relief valve pressure at 2494.7 psi (172 bar).
Corrective & Common Repairs
Address steering difficulties by inspecting brake adjustment and linkage under the seat, as stiff arms often cause uneven turning. If the track fails to hold during reverse or turns, check for hydraulic pressure drops in the actuating cylinders. Monitor final drive seals for leaks to prevent loss of the 2.6 gal (9.8 L) lubricant capacity. Ensure all wet-disc steering clutches are properly lubricated to prevent slipping under heavy load.
Overhaul & Rebuild Points
Plan for undercarriage rebuilds when track shoe wear or roller fatigue exceeds operational limits, specifically monitoring the 41 shoes per side. During engine overhauls, focus on the turbocharger assembly and fuel injection pump integrity. Rebuilding the Hydroshift transmission requires inspecting planetary gear sets and hydraulic control valves. For final drive overhauls, verify the condition of the bolt-on sprockets to ensure easy replacement and structural alignment.
Seasonal & Environment Servicing
In dusty environments, increase frequency of air cleaner inspections and radiator cleaning to prevent engine choking. During cold operations, ensure hydraulic fluid viscosity is appropriate for the gear-type pump flow. For wet or muddy conditions, prioritize cleaning the undercarriage to prevent debris buildup between track rollers and shoes. Always check battery voltage (24V system) and terminal connections before seasonal storage to ensure reliable starting.
D31P-20(S/N 45001-UP (For China / Trimming Dozer)) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 600-311-1190 | Plate? Caution,Fuel Filter | Fuel system service | Check fitment → |
| 07281-00197 | Clamp,(With Pre-Fuel Filter) | Fuel system service | Check fitment → |
| 09637-30161 | Plate? Instruction,Air Cleaner (Single Element) | Air intake service | Check fitment → |
| 07000-02135 | O-Ring,Hydraulic Oil Filter | Hydraulic service | Check fitment → |
| 600-211-6620 | Plate? Caution,Oil Filter | Lubrication service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
D31P-20(S/N 45001-UP (For China / Trimming Dozer)) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| 15B0NX | Transmission oil filter clogging | Contaminated transmission fluid or extended service interval | Replace the transmission oil filter and inspect fluid condition |
| 15G0MW | R clutch slipping | Mechanical wear of clutch disks or incorrect pressure settings | Inspect clutch assembly and verify hydraulic pressure settings |
| 15H0MW | Hi clutch slipping | Clutch disk wear or improper engagement | Check high-range clutch operation and hydraulic pressure |
| 15J0MW | Lo clutch slipping | Clutch disk wear or improper engagement | Check low-range clutch operation and hydraulic pressure |
| 2F00KM | Parking brake: Mistake in operation or setting | Incorrect manual engagement or mechanical failure in the parking brake system | Verify parking brake application and inspect mechanical linkage |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
D31P-20(S/N 45001-UP (For China / Trimming Dozer)) attachments & work tools
Blades
Standard blade width is 2435 mm (8 ft) with a height of 790 mm (31.2 in). Available aftermarket/replacement items include C-frame, cutting edges, and blades for this machine.
Rippers
Ripper attachments are available for the D31P-20; however, specific multi-shank vs single-shank configurations or weights are not documented for this exact serial range.
Winches
Not specified in available documentation for this configuration.
Drawbars/counterweights
Not documented for this exact serial range — verify with your dealer.
Cab/ROPS guarding options
Not specified in available documentation for forestry or waste configurations.
Hydraulic arrangement notes
The system utilizes a gear type pump with a relief valve pressure of 2494.7 psi (172.0 bar).
All D31P-20(S/N 45001-UP (For China / Trimming Dozer)) assemblies by section
Every catalogued assembly group for the Komatsu D31P-20(S/N 45001-UP (For China / Trimming Dozer)). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
6d95l-1ac-Tc S/N 96999-Up
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Air Cleaner(#109416-)
| 04***10 | Ring,See Fig. K4010-65a0 | 1 |
| 07***09 | Clamp,(With Cylinder Cover) | 2 |
| 60***11 | Washer,Seal (K26) | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Air Intake(#100413-)
| 01***10 | Bolt (M10x1.50x10) | 4 |
| 01***30 | Screw | 11 |
| 01***85 | Bolt | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Alternator (13a) (With Non Hardening Pulley) (Inner Parts)(#100413-)
| 60***60 | Alternator A. (13a),(With Non Hardening Pulley) | 1 |
| KD***31 | Bushing,Insulator | 2 |
| KD***80 | Packing | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Alternator Mounting (13a) (With Non Hardening Pulley)(#100413-)
| 01***50 | Bolt | 1 |
| 01***40 | Bolt,(Shim 3-Piece) | 1 |
| 01***20 | Bolt,(For Japan Pc200) | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Camshaft And Tappet
| 01***20 | Screw | 2 |
| 04***16 | Fitting Wedge | 1 |
| 06***06 | Bearing | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Cooling Fan
| 01***45 | Bolt | 6 |
| 01***30 | Screw | 6 |
| 60***20 | Fan,Cooling | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Cooling Fan (Reversible Fan Type)
| 01***45 | Bolt | 6 |
| 01***30 | Screw | 6 |
| 60***10 | Fan,(Reversible Type) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Crank Pulley (Hardening Pulley) (For 13a Alternator)
| 01***45 | Bolt,Nylock | 1 |
| 61***20 | Collar,Taper | 1 |
| 61***31 | Plate | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Crankshaft
| 62***00 | Main Metal Ass'Y | 7 |
| 62***00 | Thrust Metal Ass'Y | 1 |
| 62***00 | Main Metal Ass'Y | 7 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Cylinder Block
| 01***16 | Screw | 4 |
| 04***20 | Pin,Dowel (Welded) | 2 |
| 04***28 | Pin, Dowel - Transmission Case, Pin-Dowel | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Cylinder Block (With Cylinder Liner)(#113660-)
| 01***16 | Screw | 4 |
| 04***20 | Pin,Dowel (Welded) | 2 |
| 04***28 | Pin, Dowel - Transmission Case, Pin-Dowel | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Cylinder Block Gasket Kit
| 07***05 | O-Ring,(Not Used With Emergency Str.) (K2) | 2 |
| 07***35 | O-Ring,Hydraulic Oil Filter | 1 |
| 07***50 | O-Ring,Front Cover Plate | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Cylinder Head
| 01***32 | Washer, (Without Emergency Steering) | 25 |
| 02***04 | Plug, Pipe | 1 |
| 07***08 | Plug, Expansion | 6 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Cylinder Head (With Cylinder Liner)(#113660-)
| 01***32 | Washer, (Without Emergency Steering) | 25 |
| 02***04 | Plug, Pipe | 1 |
| 07***08 | Plug, Expansion | 6 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Cylinder Head Gasket Kit
| 08***14 | Band,(For Additional Fuel Strainer) | 2 |
| 08***19 | Band,(Without Air Conditioner) | 2 |
| 61***30 | Gasket,Air Cleaner | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Damper
| 01***16 | Bolt,(With Alternator Cover Type) | 6 |
| 62***00 | Damper,(Except Japan Pc200) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Engine Mounting
| 01***45 | Bolt,(For Power Tilt Mech Angle) | 6 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 5 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Exhaust Manifold
| 01***25 | Grub Screw | 4 |
| 01***45 | Bolt, Bracket Mounting | 12 |
| 61***50 | Nut | 4 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Flywheel
| 01***30 | Bolt | 6 |
| 06***04 | Bearing,Ball | 1 |
| 62***10 | Washer | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Flywheel Housing
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 11 |
| 07***15 | Plug | 1 |
| 61***32 | Seal? Rear (K2) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Front Cover
| 01***16 | Bolt | 2 |
| 01***16 | Screw | 3 |
| 01***65 | Bolt,(For 35a? 25a Alternator) | 15 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Front Hanger (For 13a? 25a Alternator)
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
| 62***50 | Hanger,Front (With Tension Pulley) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Front Power Take Off
| 06***07 | Bearing | 1 |
| 06***08 | Bearing,Ball | 1 |
| 07***12 | Gasket,(Without Air Compressor Type) (K2) | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Fuel Filter (For 13a? 25a Alternator)
| 01***85 | Bolt | 2 |
| 01***15 | Bolt,(With Water Separator) | 2 |
| 01***16 | Washer,(With Water Separator) | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Fuel Injection Pump (Feed Pump) (Without Stop Motor) (Inner Parts)(#100413-)
| DK***20 | Bolt, Joint | 1 |
| DK***00 | Valve,Check | 2 |
| DK***10 | Feed Pump Ass'Y,(Not Shown) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Fuel Injection Pump (Governor) (1/2) (Without Stop Motor) (Inner Parts)(#100413-)
| DK***00 | Shim? 2.00mm,(High Altitude Spec.) | 0 |
| DK***00 | Adapter | 1 |
| DK***80 | Nut | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Fuel Injection Pump (Governor) (2/2) (Without Stop Motor) (Inner Parts)(#100413-)
| DK***40 | Gasket,Air Compressor | 2 |
| DK***00 | Nut,Cap | 1 |
| DK***20 | Cover | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Fuel Injection Pump (Pump) (1/2) (Without Stop Motor) (Inner Parts)(#100413-)
| 62***52 | Injection Pump Ass'Y | 1 |
| DK***30 | Key,Woodruff | 1 |
| DK***30 | Bearing | 0 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Fuel Injection Pump (Pump) (2/2) (Without Stop Motor) (Inner Parts)(#100413-)
| DK***40 | Shim? 0.50mm, Shim, 0.50mm; Was Dk029311-0040 | 0 |
| DK***90 | Shim? 0.25mm, Shim, 0.25mm; Was Dk029311-0590 | 0 |
| DK***00 | Sleeve,Control | 6 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Fuel Injection Pump Lubricator
| 07***12 | Gasket,(Without Air Compressor Type) (K2) | 2 |
| 07***10 | Screw, Banjo Connector (M10-1.25x20) | 1 |
| 62***30 | Pipe,Oil | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Fuel Injection Pump Mounting (Without Stop Motor)(#100413-)
| 01***35 | Grub Screw | 4 |
| 01***12 | Bolt,(See Fig.0501) | 1 |
| 01***16 | Bolt,(With Alternator Cover Type) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Fuel Return (For 13a? 25a Alternator) (For 15a Alternator With Water Separator)
| 01***16 | Bolt,(With Alternator Cover Type) | 1 |
| 01***50 | Bolt,(For Shipping) | 1 |
| 04***10 | Clip,(With Accumulator) | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Head Cover
| 01***20 | Bolt,(For Japan Pc200) | 1 |
| 04***50 | Screw | 4 |
| 07***09 | Clamp,(See Fig. K0210-16a0) | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Heater Switch
| 01***12 | Bolt | 2 |
| 01***20 | Bolt,(For Japan Pc200) | 2 |
| 01***25 | Bolt,(With Corrosion Resistor) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Holder (Inner Parts)
| 62***10 | Holder Ass'Y | 6 |
| DK***00 | Shim? 0.75mm | 0 |
| DK***00 | Shim? 1.200mm | 0 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Idler Gear
| 01***75 | Bolt - Cab To Rops | 1 |
| 04***20 | Ring, Snap | 1 |
| 06***06 | Bearing | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Injection Nozzle
| 01***35 | Bolt, Mount Bracket To Floor | 6 |
| 07***00 | Clip | 11 |
| 62***10 | Carrier | 6 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Injection Piping
| 01***25 | Screw | 4 |
| 61***30 | Clip | 1 |
| 62***00 | Clip Ass'Y | 4 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Muffler(#100413-)
| 01***15 | Bolt | 1 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
| 01***16 | Screw | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Name Plate And Caution (Chinese)(#100413-)
| 09***61 | Plate? Instruction,(Chinese) (Not Shown) | 1 |
| 60***20 | Plate? Caution,Oil Filter | 1 |
| 60***90 | Plate? Caution,Fuel Filter | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Name Plate And Caution (English)
| 09***61 | Plate? Instruction,Air Cleaner (Single Element) | 1 |
| 60***30 | Plate? Caution,Oil Filter And Bypass Filter | 1 |
| 60***20 | Plate? Caution,(English)(Not Shown) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Oil Filter
| 60***41 | Cartridge,Engine Oil Filter (D31s) | 1 |
| 60***42 | Cartridge,Engine Oil Filter | 1 |
| 62***10 | Nipple | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Oil Level Gauge(#100413-)
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 1 |
| 01***20 | Screw | 1 |
| 01***06 | Nut | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Oil Pan And Suction Tube(#100413-)
| 01***16 | Bolt, Mount Solenoid Valve | 30 |
| 01***12 | Bolt,(See Fig.0501) | 1 |
| 01***16 | Screw | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Oil Pump
| 01***16 | Screw | 4 |
| 01***25 | Bolt,(With Corrosion Resistor) | 1 |
| 62***10 | Valve | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Oil Pump (With Cylinder Liner)(#113660-)
| 01***16 | Screw | 4 |
| 01***25 | Bolt,(With Corrosion Resistor) | 1 |
| 62***10 | Valve | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Piston
| 04***12 | Ring, Snap | 12 |
| 62***02 | Piston Ring Ass'Y,Per Cylinder | 6 |
| 62***10 | Pin,Piston | 6 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Piston (With Cylinder Liner)(#113660-)
| 04***12 | Ring, Snap | 12 |
| 62***02 | Piston Ring Ass'Y,Per Cylinder | 6 |
| 62***10 | Pin,Piston | 6 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Rear Hanger
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
| 62***60 | Hanger,Rear | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Rocker Arm
| 01***65 | Bolt,(For Alternator Bracket Mount) | 8 |
| 61***30 | Circlip | 2 |
| 62***20 | Spring | 5 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Spare Parts (For 25a Alternaotr Reversible Fan Type) (For 13a Alternator)(#100413-)
| 04***32 | V-Belt,(For Trimming Dozer) | 1 |
| 04***53 | V-Belt,(For Add. Air Compressor) | 1 |
| 07***16 | Gasket,(For Pc750-6) (See Fig.A2110) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Starting Motor (5.5kw) (Inner Parts)(#100413-)
| 60***50 | Starting Motor Ass'Y,(5.5kw) | 1 |
| KD***00 | Bracket,Rear | 1 |
| KD***20 | Spring,Brush | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Starting Motor Mounting (5.5kw)(#100413-)
| 01***30 | Bolt | 2 |
| 07***05 | O-Ring,(Not Used With Emergency Str.) (K2) | 1 |
| (6***0) | Starting Motor Ass'Y,(5.5kw) (See Fig.A6210-B0a5) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Tension Pulley (For 13a Alternator)
| 01***12 | Bolt | 4 |
| 01***25 | Bolt,(With Corrosion Resistor) | 1 |
| 01***65 | Bolt,(With Water Separator) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Water Pump
| 01***16 | Screw | 5 |
| 01***20 | Screw | 2 |
| 01***75 | Bolt,(For Shipping) | 4 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Water Pump (For Reversible Fan)
| 01***16 | Screw | 5 |
| 01***20 | Screw | 2 |
| 01***75 | Bolt,(For Shipping) | 4 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : 6d95l-1ac-Tc S/N 96999-Up : Water Pump Pulley (Hardening Pulley) (For Trimming Dozer) (High Altitude Spec.)(#100413-)
| 04***32 | V-Belt,(For Trimming Dozer) | 1 |
| 04***53 | V-Belt,(For Add. Air Compressor) | 1 |
| 62***60 | Pulley? Hardening | 1 |
Accessory
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Accessory : Accessory Parts
| 09***13 | Bag,Tool (D31s) | 1 |
| 09***50 | Overall,(Special Order) | 1 |
| 09***57 | Cap,(Special Order) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Accessory : Spare Parts (For Trimming Dozer)(#45001-47616)
| 04***32 | V-Belt,(For Trimming Dozer) | 1 |
| 04***53 | V-Belt,(For Add. Air Compressor) | 1 |
| 07***95 | O-Ring,Transmission Strainer | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Accessory : Tool
| 07***50 | Pump, (Bellows Type) | 1 |
| 07***03 | Cartridge - Grease | 1 |
| 07***45 | Nozzle, Grease Pump (Non-Flexible Type) | 1 |
Cooling System
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Cooling System : Radiator Sub Tank And Piping(#45001-47616)
| 01***20 | Bolt,(With Auto Emergency Steering) | 3 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 3 |
| 07***69 | Clamp,(Long Type) | 1 |
Electrical System
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Electrical System : Back-Up Buzzer (For Trimming Dozer)(#45001-47616)
| 01***16 | Bolt - Box Mounting | 1 |
| 01***20 | Bolt,(For Mono Lever Steering) | 5 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Electrical System : Back-Up Buzzer (For Trimming Dozer)(#47617-)
| 01***16 | Bolt - Box Mounting | 1 |
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Electrical System : Battery (For Trimming Dozer) (For China)
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 8 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 08***00 | Terminal? (+),(10l) (Not Shown) | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Electrical System : Battery (Large Capacity Type) (For Trimming Dozer) (For China)
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 8 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 08***00 | Terminal? (+),(10l) (Not Shown) | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Electrical System : Battery Wiring(#45001-47616)
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Electrical System : Battery Wiring(#47617-)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Electrical System : Electrical System (Without Engine Stop Motor) (For Trimming Dozer)(#45001-47616)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 15 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Electrical System : Electrical System(#47617-49533)
| 01***20 | Bolt,(Without Air Con. Or Heater) | 2 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 4 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 3 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Electrical System : Electrical System(#49534-)
| 01***20 | Bolt,(Without Air Con. Or Heater) | 2 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 4 |
| 01***25 | Bolt,(Rear Attachment Less) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Electrical System : Vehicel Lamp (For Canvas Canopy And Head Guard)(#47617-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 1 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Electrical System : Vehicel Lamp(#47617-)
| 11***51 | Lamp Ass'Y | 3 |
| 42***30 | Bulb? 70w,24v 70w | 2 |
Engine Related Parts
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Engine Related Parts : Air Cleaner (For Triming Dozer)
| 07***00 | Elbow,(F4320-54a0 -6 ) | 1 |
| 08***00 | Switch,Air Pressure | 1 |
| 10***10 | Pre-Cleaner Ass'Y | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Engine Related Parts : Air Cleaner (Forwarded Individually Parts) (Sandy And Dusty Spec.
| 07***00 | Elbow,(F4320-54a0 -6 ) | 1 |
| 08***00 | Switch,Air Pressure | 1 |
| 28***50 | Nipple | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Engine Related Parts : Corrosion Resistor (Ordering Transferred Parts)
| 60***51 | Cartridge,Corrosion | 1 |
| 60***20 | Valve Assembly | 2 |
| 60***30 | Gasket, Corrosion | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Engine Related Parts : Damper
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***05 | Bolt, Mount Hose Clip | 4 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Engine Related Parts : Engine Mounting Parts(#45001-47616)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***20 | Bolt | 4 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 4 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Engine Related Parts : Exhaust Pipe (Short Exhaust Pipe)
| 01***15 | Bolt | 1 |
| 01***11 | Nut,(Spark Arrester Spec.) | 2 |
| 61***70 | Washer,(Spark Arrester Spec.) | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Engine Related Parts : Fuel Lift Pump (Ordering Transferred Parts)
| 67***11 | Pump,Suction | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Engine Related Parts : Heater Switch (Forwarded Individually Parts)
| 60***70 | Switch,Air Intake Heater | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Engine Related Parts : Spare Parts
| 07***16 | Gasket,(For Pc750-6) (See Fig.A2110) | 1 |
| 67***10 | Gasket | 1 |
| 67***11 | Gasket,Air Intake Heater | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Engine Related Parts : Spare Parts (For 35a Alternator)
| 04***39 | V-Belt | 1 |
| 07***16 | Gasket,(For Pc750-6) (See Fig.A2110) | 1 |
| 67***11 | Gasket,Air Intake Heater | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Engine Related Parts : Spare Parts (With Reversible Fan)
| 07***16 | Gasket,(For Pc750-6) (See Fig.A2110) | 1 |
| 67***10 | Gasket | 1 |
| 67***11 | Gasket,Air Intake Heater | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Engine Related Parts : Water Separator (Forwarded Individually Parts)
| 07***12 | Gasket,(Without Air Compressor Type) (K1) | 4 |
| 07***14 | Joint | 1 |
| 07***14 | Screw, Banjo Connector (M10) | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Engine Related Parts : Water Valve (For Car Heater)
| 07***12 | Plug,(For Shipping) (Not Shown) | 1 |
| 07***59 | Clamp,See Fig. K4010-05a0 | 4 |
| 09***00 | Valve | 1 |
Fuel Tank And Related Parts
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Fuel Tank And Related Parts : Fuel Control Lever (With Decelerator Pedal)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***25 | Bolt | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Fuel Tank And Related Parts : Fuel Control Lever(#45001-47616)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***25 | Bolt | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Fuel Tank And Related Parts : Fuel Piping (With Additional Strainer)(#45001-47616)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Fuel Tank And Related Parts : Fuel Piping (With Additional Strainer)(#47617-)
| 01***30 | Screw | 2 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 8 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Fuel Tank And Related Parts : Fuel Piping (With Water Separator And Additional Strainer)(#45001-47616)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Fuel Tank And Related Parts : Fuel Piping (With Water Separator And Additional Strainer)(#47617-)
| 01***30 | Screw | 2 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 5 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Fuel Tank And Related Parts : Fuel Piping (With Water Separator)(#45001-47616)
| 01***20 | Bolt,(For Mono Lever Steering) | 3 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Fuel Tank And Related Parts : Fuel Piping (With Water Separator)(#47617-)
| 01***30 | Screw | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***23 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Fuel Tank And Related Parts : Fuel Tank And Piping (With Frp Canopy)(#45001-47616)
| 01***20 | Bolt,(For Mono Lever Steering) | 3 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***40 | Capscrew | 4 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Fuel Tank And Related Parts : Fuel Tank And Piping (With Frp Canopy)(#47617-)
| 01***40 | Bolt,R.H. Outside And L.H. Inside, Bolt | 4 |
| 01***30 | Screw | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Fuel Tank And Related Parts : Transmission Control Lever (1/3)(#45001-47616)
| 01***30 | Bolt,(For Mechanical Governor) | 9 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***05 | Nut,L.H. (For Trimming Dozer) | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Fuel Tank And Related Parts : Transmission Control Lever (1/4)(#47617-)
| 01***25 | Bolt,(Rear Attachment Less) | 1 |
| 01***30 | Bolt - M8 X 30lg | 4 |
| 01***05 | Nut,L.H. Thread (D31s) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Fuel Tank And Related Parts : Transmission Control Lever (2/3)(#45001-47616)
| 01***25 | Bolt,Without Revolution Sensor | 2 |
| 01***30 | Bolt,(For Mechanical Governor) | 8 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Fuel Tank And Related Parts : Transmission Control Lever (2/4)(#47617-)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***30 | Bolt - M8 X 30lg | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Fuel Tank And Related Parts : Transmission Control Lever (3/3)(#45001-45824)
| 01***25 | Bolt,Without Revolution Sensor | 3 |
| 01***30 | Bolt,(For Mechanical Governor) | 2 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Fuel Tank And Related Parts : Transmission Control Lever (3/3)(#45825-47616)
| 01***25 | Bolt,Without Revolution Sensor | 3 |
| 01***30 | Bolt,(For Mechanical Governor) | 5 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Fuel Tank And Related Parts : Transmission Control Lever (3/4)(#47617-)
| 01***30 | Bolt,(For Mechanical Governor) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***25 | Screw | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Fuel Tank And Related Parts : Transmission Control Lever (4/4)(#47617-)
| 01***30 | Bolt - M8 X 30lg | 4 |
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 2 |
Guard
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Guard : Radiator Guard And Hood (For Trimming Dozer) (For China)(#45001-47616)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***35 | Bolt,R.H. Outside And L.H. Inside | 8 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Guard : Radiator Guard And Hood (For Trimming Dozer) (For China)(#47617-)
| 01***50 | Bolt,(With Service Valve R.H.) | 1 |
| 01***20 | Bolt,(For Mono Lever Steering) | 8 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Guard : Rear Cover And Hydraulic Tank (For Trimming Dozer)
| 01***25 | Bolt,Without Revolution Sensor | 3 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 20 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Guard : Rear Cover And Hydraulic Tank (For Trimming Dozer) (For Chaina)
| 01***25 | Bolt,Without Revolution Sensor | 3 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 20 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Guard : Under Guard (For Trimming Dozer)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***35 | Capscrew - M14 (1)/(2) | 14 |
| 01***95 | Bolt | 2 |
Hydraulic System
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Hydraulic System : Hydraulic Piping (Lift Cylinder Line) (For Trimming Dozer)
| 01***20 | Bolt,(For Mono Lever Steering) | 8 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 14 |
| 01***30 | Bolt,(With Body Positioner) | 4 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Hydraulic System : Hydraulic Piping (Pump To Valve)(#47617-)
| 01***40 | Screw, Hex Socket | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***70 | Bolt - Accumulator Mounting Bracket | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Hydraulic System : Hydraulic Piping (Tank To Pump To Valve)(#45001-47616)
| 01***40 | Bolt,(With Air Conditioner) | 4 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Hydraulic System : Hydraulic Piping (Tank To Pump)(#47617-)
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 4 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Hydraulic System : Hydraulic Piping (Tilt Cylinder Line) (Chassis Side) (For Trimming Dozer)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 5 |
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 4 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Hydraulic System : Hydraulic Tank And Filter (For Trimming Dozer)
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 5 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 11 |
Main Frame And Related Parts
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Main Frame And Related Parts : Cross Bar (For Trimming Dozer)
| 01***50 | Bolt,(For Large Size Tire) | 8 |
| 01***55 | Bolt,(Without Rops) | 8 |
| 01***65 | Bolt,(Without Rops) | 20 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Main Frame And Related Parts : Steering Case And Main Frame (For Trimming Dozer) (For China)
| 01***40 | Bolt, Mount Master Brake Cylinder | 6 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 9 |
| 01***30 | Bolt,(With Body Positioner) | 4 |
Marks And Plates
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Marks And Plates : Marks And Plates (Chinese) (For Trimming Dozer)(#45001-47616)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 09***00 | Plate? Safety,Inspection And Maintenance | 1 |
| 09***35 | Plate? Name,Ripper (Limited Supply) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Marks And Plates : Marks And Plates (Chinese) (For Trimming Dozer)(#47617-)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 09***00 | Plate? Safety,Inspection And Maintenance | 1 |
| 09***01 | Plate? Name,(Limited Supply) | 1 |
Miscellaneous
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Miscellaneous : Lift Cylinder Lock (For Trimming Dozer)
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 8 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 8 |
| 10***10 | Rope,Wire | 2 |
Operator'S Compartment And Control System
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Operator'S Compartment And Control System : Brake Pedal
| 01***30 | Bolt,(With Body Positioner) | 5 |
| 01***40 | Bolt (Op) | 2 |
| 01***07 | Nut,L.H. Thread (D31s) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Operator'S Compartment And Control System : Brake Pedal Linkage
| 01***40 | Bolt (Op) | 1 |
| 01***45 | Bolt, Mounting Cranking Motor | 1 |
| 01***07 | Nut,L.H. Thread (D31s) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Operator'S Compartment And Control System : Canopy (2-Pillar Type)
| 01***20 | Bolt,(For Mono Lever Steering) | 8 |
| 01***45 | Bolt,(With Water Separator Type) | 12 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 8 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Operator'S Compartment And Control System : Canopy (Canvas) (4-Pillar Type)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 8 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 4 |
| 01***50 | Bolt,(For D60pl) | 12 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Operator'S Compartment And Control System : Decelerator Pedal
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***60 | Capscrew | 1 |
| 01***65 | Bolt,(With Cab) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Operator'S Compartment And Control System : Fuel Control Lever(#47617-)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***04 | Nut,(For Air Conditioner Less) | 1 |
| 01***13 | Washer,Spring(For Wiper Switch Earth) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Operator'S Compartment And Control System : Fuel Control Linkage (With Decelerator Pedal)
| 01***25 | Bolt,(Rear Attachment Less) | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***06 | Nut,L.H. Thread | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Operator'S Compartment And Control System : Head Guard
| 01***60 | Capscrew | 12 |
| 01***70 | Bolt,(With Wear Guard) | 4 |
| 01***75 | Capscrew | 24 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Operator'S Compartment And Control System : Inching Pedal
| 01***30 | Bolt,(With Body Positioner) | 3 |
| 01***45 | Bolt, Mounting Cranking Motor | 1 |
| 01***07 | Nut,L.H. Thread (D31s) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Operator'S Compartment And Control System : Inching Pedal Linkage
| 01***30 | Bolt - M8 X 30lg | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***05 | Nut,L.H. (For Trimming Dozer) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Operator'S Compartment And Control System : Instrument Panel
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 3 |
| 01***25 | Screw | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Operator'S Compartment And Control System : Instrument Panel (With Vandalism Protection)
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 3 |
| 01***25 | Screw | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Operator'S Compartment And Control System : Loader Frame And Floor Plate (For Trimming Dozer)
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 16 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Operator'S Compartment And Control System : Operator'S Seat (Rigid Type) (For Trimming Dozer) (For China)(#45001-45824)
| 01***20 | Bolt,(For Mono Lever Steering) | 10 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***60 | Capscrew | 4 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Operator'S Compartment And Control System : Operator'S Seat (Rigid Type) (For Trimming Dozer) (For China)(#45825-)
| 01***25 | Bolt,(Rear Attachment Less) | 8 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Operator'S Compartment And Control System : Steering Control Linkage
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***40 | Bolt (Op) | 1 |
| 01***50 | Bolt,(Spark Arrester Spec.) | 3 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Operator'S Compartment And Control System : Work Equipment Control Lever
| 01***16 | Bolt - Seat And Tether Belt Mounting | 4 |
| 01***25 | Bolt,(Rear Attachment Less) | 7 |
| 01***30 | Bolt - M8 X 30lg | 3 |
Power Train And Final Drive
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Power Train And Final Drive : Bevel Gear And Shaft
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 8 |
| 01***10 | Nut,(Without Air Conditioner) | 8 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 4 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Power Train And Final Drive : Brake
| 01***35 | Capscrew - M14 (1)/(2) | 8 |
| 01***42 | Washer,Spring (For Pedal Steering), Washer-Spring | 8 |
| 01***26 | Washer,Plain | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Power Train And Final Drive : Final Drive Case
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 12 |
| 01***40 | Bolt,(For Slag Handling) (For Usa) | 36 |
| 01***36 | Wahser-Spring, Washer,Spring (Without Towing Winch) | 12 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Power Train And Final Drive : Final Drive Gear
| 01***30 | Bolt,(With Body Positioner) | 36 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 36 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Power Train And Final Drive : Oil Cooler Piping
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***30 | Bolt,(With Body Positioner) | 6 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Power Train And Final Drive : Sprocket And Shaft
| 01***30 | Bolt,(Not Used When Towing Winch) | 8 |
| 01***45 | Bolt,(For 60ton Dump Body) | 32 |
| 01***13 | Nut - Cylinder Mounting | 24 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Power Train And Final Drive : Steering Brake Cylinder
| 07***15 | O-Ring,(Without Boom Kickout) | 1 |
| 07***34 | O-Ring, O-Ring,Drain Plug? R.H. Half Tank | 1 |
| 07***34 | O-Ring, At Transmission Filter | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Power Train And Final Drive : Steering Case Cover
| 01***30 | Bolt - M8 X 30lg | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 12 |
| 01***40 | Bolt (Op) | 8 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Power Train And Final Drive : Steering Clutch
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 24 |
| 01***10 | Nut (K10) | 2 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 24 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Power Train And Final Drive : Steering Piping (1/3) (Transmission Line)(#45001-45784)
| 04***70 | Ball,(-40 Deg. Spec.) | 1 |
| 07***23 | O-Ring,(F2320-62a0 -18 ) | 1 |
| 07***34 | O-Ring,(Not Used When (B) Spec.) | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Power Train And Final Drive : Steering Piping (1/3) (Transmission Line)(#45785-)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
| 04***70 | Ball,(-40 Deg. Spec.) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Power Train And Final Drive : Steering Piping (2/3) (Steering Clutch Line)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 6 |
| 01***40 | Bolt (Op) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Power Train And Final Drive : Steering Piping (3/3) (Brake Cylinder Line)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***55 | Bolt,(See Service News) | 4 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Power Train And Final Drive : Transmission (1st Housing) (5/7)
| 01***25 | Bolt,(Rear Attachment Less) | 2 |
| 01***55 | Screw | 10 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Power Train And Final Drive : Transmission (2nd Housing) (4/7)
| 04***18 | Ring,Snap (With Emergency Steering) | 1 |
| 10***40 | Plate Ass'Y | 1 |
| 11***51 | Housing,2nd | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Power Train And Final Drive : Transmission (Case) (1/7)
| 01***65 | Hexagon Bolt | 2 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***25 | Bolt,(Rear Attachment Less) | 3 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Power Train And Final Drive : Transmission (Forward And 3rd Housing) (3/7)
| 04***24 | Pin,Dowel (For No.3 Housing) | 2 |
| 04***15 | Ring,Back-Up | 1 |
| 04***18 | Ring,Snap (With Emergency Steering) | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Power Train And Final Drive : Transmission (Pump) (7/7)
| 01***45 | Screw | 3 |
| 01***55 | Screw | 7 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Power Train And Final Drive : Transmission (Reverse Housing) (2/7)
| 01***50 | Bolt,(Spark Arrester Spec.) | 1 |
| 04***20 | Ring, Retaining | 1 |
| 04***25 | Ring,Snap (Kit) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Power Train And Final Drive : Transmission (Transfer) (6/7)
| 01***25 | Bolt,(Rear Attachment Less) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 4 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Power Train And Final Drive : Transmission Valve (Modulation)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 4 |
| 01***60 | Bolt,(With Body Positioner) | 3 |
| 01***70 | Screw | 5 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Power Train And Final Drive : Transmission Valve (Selector And Inching)
| 01***25 | Bolt,(Rear Attachment Less) | 2 |
| 01***50 | Capscrew | 8 |
| 01***75 | Capscrew | 4 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Power Train And Final Drive : Universal Joint
| 01***40 | Bolt,(With Air Conditioner) | 8 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 8 |
| 07***20 | Plug,Expansion | 1 |
Service Kit And Component Parts
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Service Kit And Component Parts : Control Valve (2-Spool) (1/2) (For Trimming Dozer)
| 01***20 | Bolt (Itl) | 6 |
| 01***30 | Bolt | 2 |
| 01***30 | Bolt (Itl) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Service Kit And Component Parts : Control Valve (2-Spool) (2/2) (For Trimming Dozer)
| 07***34 | O-Ring, O-Ring, Oil Level And Fill Plug | 3 |
| 07***34 | O-Ring, At Transmission Filter | 1 |
| 07***34 | O-Ring,(F2310-59a0 -4 ) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Service Kit And Component Parts : Lift Cylinder (For Trimming Dozer)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***24 | Nut,Bearing | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Service Kit And Component Parts : Ppc Valve(#45001-45784)
| 07***20 | O-Ring,Relief Valve | 4 |
| 07***12 | Plug,Taper | 5 |
| 70***50 | Ring,Snap | 4 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Service Kit And Component Parts : Ppc Valve(#45785-)
| 01***20 | Bolt,(Without Maintenance Monitor) | 4 |
| 01***35 | Bolt | 2 |
| 07***20 | O-Ring,Relief Valve | 4 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Service Kit And Component Parts : Service Kit
| 04***10 | Lock,Holder | 1 |
| 07***08 | O-Ring,(F2320-53a3 -38 ) | 5 |
| 07***95 | O-Ring,Transmission Strainer | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Service Kit And Component Parts : Shoe Bolt And Nut Service Kit
| 11***21 | Shoe Bolt And Nut K | 1 |
| 11***11 | Bolt? Shoe (Y0320-K1) | 50 |
| 11***21 | Nut? Shoe (Y0320-K3) | 100 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Service Kit And Component Parts : Track Link (Lubricate Type) (Supply Parts)
| 07***22 | Plug,Large | 82 |
| 07***21 | Plug,(Small) | 82 |
| 11***20 | Link,Track? L.H | 80 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Service Kit And Component Parts : Track Link (Lubricate Type) (Swamp Type) (Supply Parts)
| 07***22 | Plug,Large | 82 |
| 07***21 | Plug,(Small) | 82 |
| 11***20 | Link,Track? L.H | 80 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Service Kit And Component Parts : Track Link (Master Pin Type) (Supply Parts)(#45001-45775)
| 11***72 | Seal,Dust? Regular? W-Type | 156 |
| 11***82 | Seal,Dust? Regular? W-Type | 8 |
| 11***43 | Bushing,Regular | 78 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Service Kit And Component Parts : Track Link (Master Pin Type) (Supply Parts)(#45776-)
| 11***72 | Seal,Dust? Regular? W-Type | 160 |
| 11***82 | Seal,Dust? Regular? W-Type | 4 |
| 11***43 | Bushing,Regular | 80 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Service Kit And Component Parts : Track Link (Master Pin Type) (Swamp Type) (Supply Parts)(#45001-45775)
| 11***72 | Seal,Dust? Regular? W-Type | 176 |
| 11***82 | Seal,Dust? Regular? W-Type | 8 |
| 11***43 | Bushing,Regular | 88 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Service Kit And Component Parts : Track Link (Master Pin Type) (Swamp Type) (Supply Parts)(#45776-)
| 11***72 | Seal,Dust? Regular? W-Type | 180 |
| 11***82 | Seal,Dust? Regular? W-Type | 4 |
| 11***43 | Bushing,Regular | 90 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Service Kit And Component Parts : Trimming Cylinder(#45001-47616)
| 01***24 | Nut,Bearing | 1 |
| 07***90 | O-Ring,(Dk029369-0020) (K2) | 1 |
| 07***85 | O-Ring,(For Snow Removing) | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Service Kit And Component Parts : Work Equipment Pump
| 01***32 | Washer, (Without Emergency Steering) | 4 |
| 04***24 | Pin,Dowel (For No.3 Housing) | 4 |
| 04***18 | Ring, Retaining | 1 |
Under Carriage
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Under Carriage : Carrier Roller
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 5 |
| 01***45 | Bolt,L.H | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Under Carriage : Carrier Roller (Bracket)
| 01***40 | Bolt,(For Slag Handling) (For Usa) | 8 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 8 |
| 11***50 | Bracket | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Under Carriage : Front Idler(#45001-47614)
| 01***30 | Bolt,(For France Noise Suppression) | 12 |
| 01***40 | Bolt,For Weight Adjusting Bolt | 8 |
| 01***10 | Nut,(Fig.F2820-01a3-12) | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Under Carriage : Front Idler(#47615-)
| 01***40 | Bolt,(With Service Valve R.H.) | 8 |
| 01***10 | Nut,(Fig.F2820-01a3-12) | 2 |
| 01***36 | Wahser-Spring, Washer,Spring (Without Towing Winch) | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Under Carriage : Recoil Spring (For Trimming Dozer)
| 01***16 | Bolt (With Air Heater & Conditioner) | 6 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***60 | Bolt, Mount Tube To Switch Pump | 4 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Under Carriage : Track Frame (For Trimming Dozer)
| 01***40 | Bolt,(For Slag Handling) (For Usa) | 44 |
| 01***13 | Nut,(For Adjustable Rod) | 2 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 46 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Under Carriage : Track Frame (Track Roller)(#48794-)
| 01***50 | Bolt,(For D60pl) | 48 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 48 |
| 07***42 | O-Ring, Between Tube And Divider Valve | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Under Carriage : Track Frame (With Mono Block Type Track Roller Guard? Trimming Dozer)(#48794-)
| 01***40 | Bolt,(For Slag Handling) (For Usa) | 56 |
| 01***13 | Nut,(For Adjustable Rod) | 6 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 62 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Under Carriage : Track Frame (With Separate Type Track Roller Guard? Trimming Dozer)(#48794-)
| 01***30 | Bolt - M14 X 30lg | 16 |
| 01***40 | Bolt,(For Slag Handling) (For Usa) | 56 |
| 01***13 | Nut,(For Adjustable Rod) | 6 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Under Carriage : Track Frame Cover (For Trimming Dozer)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 12 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 12 |
| 01***32 | Washer,(With Auto Emergency Steering) | 12 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Under Carriage : Track Guard (For Mono Block Type)(#45001-48793)
| 01***40 | Bolt,(For Slag Handling) (For Usa) | 56 |
| 01***13 | Nut,(For Adjustable Rod) | 6 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 62 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Under Carriage : Track Guard (For Separate Type)(#45001-48793)
| 01***30 | Bolt - M14 X 30lg | 16 |
| 01***40 | Bolt,(For Slag Handling) (For Usa) | 56 |
| 01***13 | Nut,(For Adjustable Rod) | 6 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Under Carriage : Track Guard(#45001-48793)
| 01***40 | Bolt,(For Slag Handling) (For Usa) | 44 |
| 01***13 | Nut,(For Adjustable Rod) | 2 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 46 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Under Carriage : Track Roller(#45001-46981)
| 01***30 | Bolt,(With Body Positioner) | 12 |
| 01***45 | Bolt,(For 60ton Dump Body) | 48 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 12 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Under Carriage : Track Roller(#46982-48793)
| 01***50 | Bolt,(For D60pl) | 48 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 48 |
| 07***42 | O-Ring, Between Tube And Divider Valve | 2 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Under Carriage : Track Shoe (Lubricate Type) (Semi-Double Grouser With Hole) (400mm Wide) (For Trimming Dozer)(#45001-45775)
| 07***22 | Plug,Large | 82 |
| 07***21 | Plug,(Small) | 82 |
| 11***11 | Bolt? Shoe (Y0320-K1) | 320 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Under Carriage : Track Shoe (Lubricate Type) (Single Grouser With Hole) (400mm Wide) (For Trimming Dozer)
| 07***22 | Plug,Large | 82 |
| 07***21 | Plug,(Small) | 82 |
| 11***11 | Bolt? Shoe (Y0320-K1) | 320 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Under Carriage : Track Shoe (Lubricate Type) (Single Grouser With Hole) (600mm Wide) (For Trimming Dozer)
| 07***22 | Plug,Large | 82 |
| 07***21 | Plug,(Small) | 82 |
| 11***11 | Bolt? Shoe (Y0320-K1) | 320 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Under Carriage : Track Shoe (Lubricate Type) (Swamp Type) (600mm Wide)
| 07***22 | Plug,Large | 82 |
| 07***21 | Plug,(Small) | 82 |
| 11***21 | Nut? Shoe (Y0320-K3) | 320 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Under Carriage : Track Shoe (Lubricate Type) (Triple Grouser With Hole) (400mm Wide) (For Trimming Dozer)
| 07***22 | Plug,Large | 82 |
| 07***21 | Plug,(Small) | 82 |
| 11***11 | Bolt? Shoe (Y0320-K1) | 320 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Under Carriage : Track Shoe (Master Pin Type) (Semi-Double Grouser With Hole) (400mm Wide) (For Trimming Dozer)(#45001-45775)
| 11***72 | Seal,Dust? Regular? W-Type | 156 |
| 11***82 | Seal,Dust? Regular? W-Type | 8 |
| 11***43 | Bushing,Regular | 78 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Under Carriage : Track Shoe (Master Pin Type) (Semi-Double Grouser With Hole) (400mm Wide) (For Trimming Dozer)(#45776-)
| 11***72 | Seal,Dust? Regular? W-Type | 160 |
| 11***82 | Seal,Dust? Regular? W-Type | 4 |
| 11***43 | Bushing,Regular | 80 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Under Carriage : Track Shoe (Master Pin Type) (Single Grouser With Hole) (400mm Wide) (For Trimming Dozer)(#45001-49577)
| 11***72 | Seal,Dust? Regular? W-Type | 156 |
| 11***82 | Seal,Dust? Regular? W-Type | 8 |
| 11***43 | Bushing,Regular | 78 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Under Carriage : Track Shoe (Master Pin Type) (Single Grouser With Hole) (400mm Wide) (For Trimming Dozer)(#49578-)
| 11***72 | Seal,Dust? Regular? W-Type | 160 |
| 11***82 | Seal,Dust? Regular? W-Type | 4 |
| 11***43 | Bushing,Regular | 80 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Under Carriage : Track Shoe (Master Pin Type) (Swamp Type) (600mm Wide)(#45001-45775)
| 11***72 | Seal,Dust? Regular? W-Type | 156 |
| 11***82 | Seal,Dust? Regular? W-Type | 8 |
| 11***43 | Bushing,Regular | 78 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Under Carriage : Track Shoe (Master Pin Type) (Swamp Type) (600mm Wide)(#45776-)
| 11***72 | Seal,Dust? Regular? W-Type | 160 |
| 11***82 | Seal,Dust? Regular? W-Type | 4 |
| 11***43 | Bushing,Regular | 80 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Under Carriage : Track Shoe (Master Pin Type) (Triple Grouser With Hole) (400mm Wide) (For Trimming Dozer)(#45001-45775)
| 11***72 | Seal,Dust? Regular? W-Type | 156 |
| 11***82 | Seal,Dust? Regular? W-Type | 8 |
| 11***43 | Bushing,Regular | 78 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Under Carriage : Track Shoe (Master Pin Type) (Triple Grouser With Hole) (400mm Wide) (For Trimming Dozer)(#45776-)
| 11***72 | Seal,Dust? Regular? W-Type | 160 |
| 11***82 | Seal,Dust? Regular? W-Type | 4 |
| 11***43 | Bushing,Regular | 80 |
Work Equipment
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Work Equipment : Hitch
| 01***60 | Bolt, Mount Pole | 2 |
| 01***60 | Flat Washer - M20 (Hardened) | 2 |
| 11***20 | Hitch Ass'Y | 1 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Work Equipment : Hydraulic Piping (Tilt Cylinder Line) (Dozer Side) (For Trimming Dozer)(#45001-47616)
| 01***20 | Bolt,(For Mono Lever Steering) | 14 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***35 | Capscrew - M14 (1)/(2) | 4 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Work Equipment : Rear Guard (For Trimming Dozer)
| 01***55 | Bolt,(With Hook) | 8 |
| 01***80 | Bolt,(For 100kg) | 2 |
| 01***60 | Flat Washer - M20 (Hardened) | 10 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Work Equipment : Trimming Dozer Blade(#45001-47616)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 16 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 18 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Work Equipment : Trimming Dozer Frame(#45001-47616)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***85 | Bolt,(For 2nd Travel Speed) (Op) | 2 |
| 01***55 | Bolt | 24 |
Komatsu : D31p-20(S/N 45001-Up (For China / Trimming Dozer)) : Work Equipment : Trimming Dozer Frame(#47617-)
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***85 | Bolt, Divider Valve Mounting | 2 |
| 01***55 | Bolt | 24 |
D31P-20(S/N 45001-UP (For China / Trimming Dozer)) serial number reference
The PIN plate is located on the front frame casting, typically on the operator's left side near the radiator support. To read the prefix, identify the first three characters of the serial number string preceding the numeric sequence.
| Prefix | Identifies | Notes |
|---|---|---|
| D31 | D31P-20 (For China / Trimming Dozer) | Identifies the crawler dozer family. This specific configuration is a trimming do/zer for the China market, part of the S/N 45001-UP production block. |
Frequently asked questions
What engine is installed in this D31P-20 model?
The machine is powered by a Komatsu S4D102E turbocharged diesel engine with a displacement of approximately 2-2.4 cu in (3.9 L).
What is the operating weight of this bulldozer?
The operating weight varies by configuration, typically ranging from 12,985 lb (5,890 kg) to 13,657.7 lb (6,195 kg).
What model replaced the D31P-20?
The documentation identifies related models in the D31 series, such as the D31E-20 and D31PL-20, following standard Komatsu generational progression.
What D31P-20(S/N 45001-UP (For China / Trimming Dozer)) owners discuss
What are the common symptoms of final drive failure on the D31P-20?
Common indicators include unusual noises or malfunctions during operation. Identifying these symptoms early is critical to prevent more extensive damage to the assembly.
Why might a D31P-20 experience difficulty turning in one direction, specifically to the right?
Operators report instances where the machine turns very slowly or fails to hold the track when turning right, while left turns remain unaffected. Potential causes include improper brake adjustment, stiff linkage arms under the seat, low pressure in the actuating cylinder, or incorrect joystick adjustment preventing full range of movement.
What are the known issues regarding engine performance and traction on this model?
Some units may experience inconsistent pulling power, such as failing to engage properly from idle while in gear or stopping pulling altogether. The machine may start and move initially but then lose traction during operation.
What engine is used in the D31P-20 (S/N 45001-UP) and what are its key specs?
The machine utilizes a Komatsu S4D102E turbocharged engine. Key specifications include a displacement of 238 cu in (3,900 cc), net power of 70 hp (52 kW) measured at 2350 rpm.
What are the standard undercarriage dimensions for this machine?
The undercarriage features a track gauge of approximately 3.3 ft (1 m), with 41 shoes per side and 6 track rollers per side. The standard shoe size is 24 in (60 cm).
What should be checked when inspecting a used D31P-20 for potential theft or fraud?
Verify that the serial number on the factory plate (located on the front frame casting) matches the number stamped into the chassis frame casting. A mismatch between these two identifiers is a primary signal of stolen equipment.
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 D31P-20(S/N 45001-UP (For China / Trimming Dozer)). Related factory variants of the same model family:
D31P-20(S/N 45001-UP (For Cuba / Trimming Dozer))D31P-20(S/N 45001-UP (Straight Tilt Dozer))D31P-20(S/N 45001-UP (For C.I.S. / Trimming Dozer))
Need a specific D31P-20(S/N 45001-UP (For China / Trimming Dozer)) part?
Search live OEM part data, check fitment, and cross-reference alternatives with Heavy Parts AI.