Komatsubulldozersmall ( - d39)
Komatsu D20P-6A(S/N 60001-UP (Power Angle Tilt Dozer))
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu D20P-6A (S/N 60001-UP) is a compact crawler dozer in the 4-metric-ton class. This Power Angle Tilt (PAT) configuration features a naturally aspirated 4D95S-W-1 four-cylinder diesel engine producing 40 hp (29.8 kW) at 2450 rpm. The machine utilizes a direct-drive transmission with 3 forward and 2 reverse gears, operating at an approximate weight of 8686.3 lb (3940 kg).
As part of the -6 generation, this model represents a pre-emissions era design focused on mechanical simplicity and durability. In today's used market, the D20P-6A remains significant due to its robust 4D95S engine and versatile PAT blade configuration, making it a preferred choice for light earthmoving and utility tasks.
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 D20P-6A(S/N 60001-UP (Power Angle Tilt Dozer)) specifications
Engine
| Engine Model | 4D9-95S-W-1 |
| Number of Cylinders | 4 |
| Gross Power | 40 hp (29.8 kW) |
| Power Measured @ RPM | 2450 rpm |
| Displacement | 164.2 cu in (2.7 L) |
Weights
| Operating Weight | 8686.3 lb (3940 kg) |
Dimensions
| Length w/ Blade | 11.11 ft (3.4 m) |
| Length w/o Blade | 8.37 ft (2.56 m) |
| Width Over Tracks | 8.4 ft (2.56 m) |
| Height To Top of Cab | 8.21 ft (2.5 m) |
| Ground Clearance | 1.17 ft (355 mm - 370 mm) |
| Length of Track on Ground | 5.53 ft (1.69 m - 1.71 m) |
| Track Gauge | 4.89 ft (1.49 m) |
| Standard Shoe Size | 20.08 in (510 mm) |
| Track Pitch | 5.32 in (135 mm - 137 mm) |
Performance
| Number of Forward Gears | 3 |
| Number of Reverse Gears | 2 |
| Transmission Type | Direct Drive (DD) |
Blades
| Standard Blade Width | 8.4 ft (2.56 m) |
| Standard Blade Height | 23.3 in (590 mm) |
Undercarriage
| Number of Shoes per Side | 37 |
| Number of Track Rollers per Side | 5 |
Service Capacities
| Engine Crankcase Oil | 8 L specified (7 L refill) |
| Engine Oil Specification | Komatsu engine oil API CD; SAE10W (<10°C), SAE30 (>10°C), or SAE10W-30/15W-40 multigrade |
| Cooling System | 10 L specified; water with antifreeze for <0°C |
| Fuel Tank | 60 L specified; ASTM D975 No.2 diesel (>0°C), No.1 diesel (<-10°C) |
| Main Clutch Case Oil | 6 L specified/refill; SAE10W |
| Transmission/Bevel Gear Case | 16.5 L specified/refill (combined reservoir); SAE10W (<10°C), SAE30 (>10°C) |
| Final Drive Case Oil | 8 L specified/refill per side; SAE10W (<10°C), SAE30 (>10°C) |
| Hydraulic System | 33 L specified (21 L refill); uses Komatsu engine oil; SAE10W cold, SAE10W-30/15W-40 multigrade |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
D20P-6A(S/N 60001-UP (Power Angle Tilt Dozer)) fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (w/ filter) | 8 L specified, 7 L refill (2.1 US gal specified, 1.8 US gal refill) | Komatsu engine oil, API classification CD. Viscosity by ambient temperature: SAE10W below 10°C (50°F); SAE30 above 10°C (50°F); SAE10W-30 or SAE15W-40 multigrade for -10°C to 30°C+ (14°F to 86°F+). For start-up below 0°C (32°F), use SAE10W, SAE10W-30, or SAE15W-40. |
| Cooling system | 10 L specified (2.6 US gal) | Water with antifreeze for temperatures below 0°C (3ARR). |
| Fuel tank | 60 L specified (15.9 US gal) | Diesel fuel meeting ASTM D975 No.2 for ambient temperatures above 0°C (32°F). ASTM D975 No.1 diesel for conditions below -10°C (14°F). |
| Transmission/powertrain (transmission + bevel gear) | 16.5 L specified and refill (4.4 US gal) | Komatsu engine oil. SAE10W below 10°C (50°F); SAE30 above 10°C (50°F). |
| Final drives (each) | 8 L specified and refill per side (2.1 US gal) | Komatsu engine oil, SAE10W (<10°C/50°F) or SAE30 (>10°C/50°F). |
| Hydraulic system/tank | 33 L specified, 21 L refill (8.7 US gal specified, 5.5 US gal refill) | Komatsu engine oil; SAE10W cold, SAE10W-30 or SAE15W-40 multigrade. |
| Main clutch case | 6 L specified and refill (1.6 US gal) | Komatsu engine oil; SAE10W. |
| Grease | Standard multipurpose chassis grease per Komatsu practice. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Komatsu D20P-6A(S/N 60001-UP (Power Angle Tilt Dozer)) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 50 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
Servicing the D20P-6A(S/N 60001-UP (Power Angle Tilt Dozer)) beyond the schedule
Predictive Maintenance & Fluid Analysis
Utilize KOWA (Komatsu Oil Wear Analysis) during major service intervals to monitor engine and hydraulic health. Monitor the 4D95S engine oil using API CD or SAE10W-30/15W-40 multigrade specifications. Regularly check the 33 L (8.7 gal) hydraulic system, ensuring the refill level is maintained with Komatsu engine oil to prevent pump cavitation and steering stiffness.
Corrective & Common Repairs
Address steering stiffness or loss of left-side maneuverability by inspecting the power steering pump for leaks and verifying hydraulic fluid levels. If the engine bogs down during operation, check the steering clutch and brake release mechanisms. Inspect the PAT blade cylinders for leaks to ensure proper angle and tilt functionality in the 2.56 m (8.4 ft) wide blade assembly.
Overhaul & Rebuild Points
Plan major overhauls around the 1,000-hour mark for the transmission, bevel gear case, and final drive systems. Critical rebuild points include adjusting engine valve clearances for the 4D95S diesel engine and inspecting the injection pump. For long-term durability, evaluate the 37 shoes per side and 5 track rollers per side for excessive wear during undercarriage reconstruction.
Seasonal & Environment Servicing
For cold weather operation, utilize SAE10W engine oil and ensure the cooling system contains antifreeze for temperatures below 0°C. In dusty environments, prioritize frequent air cleaner inspections and fuel filter sediment checks. During summer months, monitor the 10 L (2.6 gal) cooling system capacity to prevent overheating during high-load earthmoving tasks.
D20P-6A(S/N 60001-UP (Power Angle Tilt Dozer)) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 09637-30161 | Plate? Instruction,Air Cleaner (Single Element) | Air intake service | Check fitment → |
| 09637-30661 | Plate? Instruction,Air Cleaner (Single Element) | Air intake service | Check fitment → |
| 07000-02135 | O-Ring,Hydraulic Oil Filter | Hydraulic service | Check fitment → |
| 07000-02080 | O-Ring,Hydraulic Oil Filter | Hydraulic service | Check fitment → |
| 600-211-6240 | Cartridge,Engine Oil Filter (D31s) | Lubrication service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
D20P-6A(S/N 60001-UP (Power Angle Tilt Dozer)) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| E02 | EPC system failure | Electronic Pressure Control system malfunction or sensor error | Inspect EPC solenoid and related electrical connections |
| E03 | Parking brake system failure | Brake actuator malfunction or mechanical binding | Check parking brake engagement mechanism and hydraulic pressure |
| E10 | Engine controller power failure/management malfunction | Loss of supply voltage to engine control unit or internal logic error | Verify battery voltage and check engine controller wiring harness |
| E11 | Engine control failure (power reduction) | System-initiated derate to protect engine components | Check for secondary fault codes related to sensors or fuel pressure |
| E14 | Feedback system failure | Sensor signal loop interruption or incorrect feedback voltage | Inspect sensor wiring and check for open circuits in the feedback loop |
| E15 | Engine sensor malfunction | Faulty temperature, fuel pressure, or oil pressure sensor | Test individual engine sensors for correct resistance and signal output |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
D20P-6A(S/N 60001-UP (Power Angle Tilt Dozer)) attachments & work tools
Blades
Standard configuration features a Power Angle Tilt (PAT) blade. Standard width is 2.56 m (8.4 ft) with a height of 590 mm (23.3 in). The blade can angle to approximately 2.44 m (8 ft).
Rippers
Ripper attachments are available for this model. Specific single-shank or multi-shank configurations and weights are not documented for this exact serial range.
Drawbars/counterweights
Swing drawbar and hitch components are available. Specific counterweight weights for this configuration are not specified.
Cab/ROPS guarding options
Vandalism protection, marks, and plates are listed as available accessories.
Hydraulic arrangement notes
The system uses Komatsu engine oil. Specified capacity is 33 L (8.71 gal) with a refill volume of 21 L (5.55 gal).
All D20P-6A(S/N 60001-UP (Power Angle Tilt Dozer)) assemblies by section
Every catalogued assembly group for the Komatsu D20P-6A(S/N 60001-UP (Power Angle Tilt Dozer)). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
4d95s-W-1f-Ap S/N 23318-Up
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Air Cleaner And Mounting
| 01***30 | Bolt,(Water Separator Spec.) | 1 |
| 01***16 | Bolt,(With Alternator Cover Type) | 2 |
| 01***06 | Nut | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Air Intake Manifold And Connection(#23318-30907)
| 01***65 | Stud | 1 |
| 01***65 | Bolt,(With Water Separator) | 3 |
| 01***75 | Bolt,(For Shipping) | 8 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Air Intake Manifold And Connection(#30908-)
| 01***65 | Stud | 1 |
| 01***12 | Bolt,(With Speedometer) | 4 |
| 01***65 | Bolt,(With Water Separator) | 3 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Alternator (15a)
| 60***60 | Alternator A. (15a) | 1 |
| KD***70 | Cover | 1 |
| KD***30 | Retainer | 2 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Alternator (25a)
| 60***10 | Alternator A. (25a) | 1 |
| KD***57 | Bearing,Ball? Front | 1 |
| KD***11 | Rear Bracket Ass'Y | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Alternator And Mounting (15a)
| 01***25 | Bolt,(With Corrosion Resistor) | 1 |
| 01***45 | Bolt | 1 |
| 01***06 | Nut | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Alternator And Mounting (25a)
| 01***55 | Bolt,(With Engine Stop Motor Type) | 1 |
| 01***30 | Bolt | 1 |
| 01***11 | Nut,(For Center Guard) | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Camshaft And Tappet
| 01***20 | Screw | 2 |
| 04***16 | Fitting Wedge | 1 |
| 62***31 | Thrust Washer | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Crankshaft
| 61***20 | Bolt | 1 |
| 62***00 | Crankshaft Ass'Y | 1 |
| 62***00 | Main Metal Ass'Y | 5 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Cylinder Block
| 01***55 | Bolt, Mount Tube To Switch Pump | 8 |
| 01***16 | Screw | 1 |
| 01***20 | Screw | 2 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Cylinder Head
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 4 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 17 |
| 02***04 | Plug, Pipe | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Cylinder Head Cover
| 61***10 | Cap, Oil Filler | 1 |
| 61***20 | Screw | 3 |
| 61***30 | Washer,(B) | 3 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Exhaust Manifold And Muffler
| 01***25 | Grub Screw | 4 |
| 01***45 | Bolt, Bracket Mounting | 8 |
| 01***11 | Nut (M14-1.50 Thd), Nut; Was 01582-01411 | 2 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Exhaust Manifold And Muffler (With Spark Arrester)
| 01***25 | Grub Screw | 4 |
| 01***45 | Bolt, Bracket Mounting | 8 |
| 01***11 | Nut (M14-1.50 Thd), Nut; Was 01582-01411 | 2 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Flywheel And Flywheel Housing
| 01***30 | Bolt | 6 |
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 11 |
| 01***40 | Bolt,(Shim 3-Piece) | 3 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Front Cover And Gear
| 01***10 | Bolt | 1 |
| 01***70 | Bolt,(For 75a Alternator) | 1 |
| 01***16 | Bolt | 2 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Fuel Filter And Piping
| 01***65 | Bolt,(With Water Separator) | 2 |
| 07***12 | Gasket,Mechanical Pump Piping | 1 |
| 07***12 | Gasket,(Without Air Compressor Type) (K1) | 4 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Fuel Filter And Piping (For Large Capacity)(#56149-)
| 01***65 | Bolt,(With Water Separator) | 2 |
| 07***12 | Gasket,Mechanical Pump Piping | 1 |
| 07***12 | Gasket,(Without Air Compressor Type) (K1) | 4 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Fuel Injection Pump (Feed Pump)
| DK***20 | Bolt, Joint | 1 |
| DK***00 | Valve,Check | 2 |
| DK***20 | Pump,Priming | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Fuel Injection Pump (Governor) (1/2)
| DK***00 | Shim? 2.00mm,(High Altitude Spec.) | 0 |
| DK***00 | Adapter | 1 |
| DK***80 | Nut | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Fuel Injection Pump (Governor) (2/2)
| DK***20 | Lever | 1 |
| DK***40 | Gasket,Air Compressor | 2 |
| DK***20 | Capsule,Spring | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Fuel Injection Pump (Pump) (1/2)
| 62***10 | Injection Pump Ass'Y | 1 |
| 62***11 | Injection Pump Ass'Y | 1 |
| DK***30 | Bearing | 0 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Fuel Injection Pump (Pump) (2/2)
| DK***40 | Shim? 0.50mm, Shim, 0.50mm; Was Dk029311-0040 | 0 |
| DK***90 | Shim? 0.25mm, Shim, 0.25mm; Was Dk029311-0590 | 0 |
| DK***00 | Sleeve,Control | 4 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Fuel Injection Pump And Piping
| 01***35 | Stud | 4 |
| 01***12 | Bolt | 2 |
| 01***25 | Screw | 2 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Fuel Nozzle And Spill Pipe
| 07***50 | Tube,Spill | 1 |
| 07***55 | Tube,Spill | 1 |
| 07***85 | Clip | 2 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Gasket Kit
| 01***12 | Washer,Lock (Noise Suppression Spec.) (K2) | 1 |
| 07***65 | O-Ring,Injection Pump Case | 1 |
| 07***85 | O-Ring,(Without Fuel Level Gauge) | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Lubricating Oil Filter
| 60***40 | Cartridge,Engine Oil Filter (D31s) | 1 |
| 60***41 | Cartridge,Engine Oil Filter (D31s) | 1 |
| 60***20 | Plate? Caution,(Italian-English) | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Lubricating Oil Pump And Suction Pipe
| 01***12 | Bolt,(See Fig.0501) | 1 |
| 01***16 | Screw | 6 |
| 01***55 | Bolt,(With Engine Stop Motor Type) | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Oil Pan (Double Bottom Type)(#36389-74638)
| 01***16 | Bolt, Mount Solenoid Valve | 24 |
| 01***16 | Screw | 24 |
| 07***12 | Washer, Gasket,(Without Thermo Sensor) (K1) | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Oil Pan (Double Bottom Type)(#74639-)
| 01***20 | Bolt,(Forwarded Individually Parts) | 24 |
| 07***12 | Washer, Gasket,(Without Thermo Sensor) (K1) | 1 |
| 07***16 | Gasket,(For Pc750-6) (See Fig.A2110) | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Oil Pan(#23318-74638)
| 01***16 | Bolt, Mount Solenoid Valve | 24 |
| 01***16 | Screw | 24 |
| 07***16 | Gasket,(For Pc750-6) (See Fig.A2110) | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Oil Pan(#74639-)
| 01***20 | Bolt,(Forwarded Individually Parts) | 24 |
| 07***16 | Gasket,(For Pc750-6) (See Fig.A2110) | 1 |
| 62***12 | Pan,Oil | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Piston And Connecting Rod
| 04***12 | Ring, Snap | 8 |
| 62***40 | Piston (S) | 4 |
| 62***00 | Piston Ring Ass'Y,Per Cylinder | 4 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Rocker Arm
| 01***12 | Bolt,(Without R.P.C.U.) | 1 |
| 01***65 | Bolt,(For Alternator Bracket Mount) | 5 |
| 61***30 | Nut | 8 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Starting Motor (2.8kw)
| 60***70 | Starting Motor Ass'Y,(2.8kw) | 1 |
| KD***60 | Bracket,Center | 1 |
| KD***50 | Stopper,Piston | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Starting Motor And Mounting (2.8kw)
| 01***30 | Bolt | 2 |
| 07***95 | O-Ring,Transmission Strainer | 1 |
| (6***0) | Starting Motor Ass'Y,(2.8kw) (See Fig.A6210-B0b3) | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Water Pump And Cooling Fan
| 01***16 | Screw | 5 |
| 01***20 | Screw | 2 |
| 01***25 | Bolt,(With Corrosion Resistor) | 6 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : 4d95s-W-1f-Ap S/N 23318-Up : Water Separator And Piping(#43240-)
| 01***80 | Stud | 2 |
| 01***25 | Bolt,(With Corrosion Resistor) | 2 |
| 01***08 | Nut,See Fig. K4010-04a0 | 2 |
Control System
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Control System : Brake Pedal (For Lever Steering)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Control System : Brake Pedal Linkage
| 01***45 | Bolt, Mounting Bracket To Radiator (Top) | 1 |
| 01***06 | Nut? L.H. Thread,L.H. Thread (For Chinese) | 2 |
| 01***06 | Nut,L.H. Thread (For Russian) | 2 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Control System : Fuel Control Lever
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 5 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***04 | Nut,(For Air Conditioner Less) | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Control System : Main Clutch Pedal (For Lever Steering)
| 01***30 | Bolt,(For Mechanical Governor) | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Control System : Main Clutch Pedal (For Pedal Steering)
| 01***30 | Bolt,(For Mechanical Governor) | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Control System : Oil Cooler Piping
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***40 | Bolt, Mount Master Brake Cylinder | 2 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Control System : Parking Brake Lever (For Pedal Steering)
| 01***30 | Bolt,(For Mechanical Governor) | 1 |
| 01***45 | Bolt, Mounting Bracket To Radiator (Top) | 1 |
| 01***70 | Bolt,(With Wear Guard) | 2 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Control System : Steering And Brake Pedal (For Pedal Steering)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 4 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 2 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Control System : Steering Control Lever (For Lever Steering)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 5 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Control System : Steering Control Linkage (For Lever Steering)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***32 | Screw | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Control System : Steering Pedal Linkage (For Pedal Steering)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***32 | Screw | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Control System : Steering Piping
| 01***16 | Bolt (With Air Heater & Conditioner) | 1 |
| 01***50 | Bolt (Kit) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Control System : Steering Valve (For Lever Steering)
| 01***20 | Bolt,(With Auto Emergency Steering) | 8 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***70 | Bolt, Accumulator Mounting Bracket | 3 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Control System : Steering Valve (For Pedal Steering)
| 01***20 | Bolt,(With Auto Emergency Steering) | 8 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***70 | Bolt, Accumulator Mounting Bracket | 3 |
Engine Related Parts And Electrical System
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Engine Related Parts And Electrical System : Battery
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
| 08***10 | Terminal? (+) | 2 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Engine Related Parts And Electrical System : Battery (Dry Type)
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
| 08***10 | Terminal? (+) | 2 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Engine Related Parts And Electrical System : Battery (Large Capacity Type)
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
| 08***00 | Terminal? (+),(10l) (Not Shown) | 2 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Engine Related Parts And Electrical System : Electrical System
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 1 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 10 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Engine Related Parts And Electrical System : Electrical System (With Rops Cab)
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 1 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 9 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Engine Related Parts And Electrical System : Engine Mounting Parts
| 01***10 | Bolt (Op) | 4 |
| 10***20 | Cushion | 4 |
| 10***30 | Cushion | 4 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Engine Related Parts And Electrical System : Fuel Tank Additional Strainer And Piping
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***30 | Bolt,(For Mechanical Governor) | 2 |
| 01***50 | Bolt,(With Service Valve R.H.) | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Engine Related Parts And Electrical System : Fuel Tank And Piping
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 4 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Engine Related Parts And Electrical System : Fuel Tank And Piping (With Rops Cab)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 4 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Engine Related Parts And Electrical System : Instrument Panel (For Lever Steering)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
| 01***08 | Screw, Terminal | 2 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Engine Related Parts And Electrical System : Instrument Panel (For Lever Steering) (Cold Weather (A) Spec.) (Except Japan)
| 01***12 | Bolt,(With Cylinder Cover) | 1 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Engine Related Parts And Electrical System : Instrument Panel (For Lever Steering) (For Quick Heater Glow Plug)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***08 | Screw, Terminal | 2 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Engine Related Parts And Electrical System : Instrument Panel (For Lever Steering) (With Rops Cab)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
| 01***08 | Screw, Terminal | 2 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Engine Related Parts And Electrical System : Instrument Panel (For Lever Steering) (With Tachometer)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 4 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Engine Related Parts And Electrical System : Instrument Panel (For Pedal Steering)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
| 01***08 | Screw, Terminal | 2 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Engine Related Parts And Electrical System : Instrument Panel (For Pedal Steering) (With Vandalism Protection)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
| 01***08 | Screw, Terminal | 2 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Engine Related Parts And Electrical System : Oil Pan Heater (Cold Weather (A) Spec.) (Except Japan)
| 01***16 | Bolt (With Air Heater & Conditioner) | 1 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Engine Related Parts And Electrical System : Quick Heater Glow Plug
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***12 | Screw,(With Articulate Indicator) | 4 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Engine Related Parts And Electrical System : Radiator And Piping
| 01***16 | Bolt (With Air Heater & Conditioner) | 4 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 7 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Engine Related Parts And Electrical System : Radiator And Piping (For Large Capacity Radiator)
| 01***16 | Bolt (With Air Heater & Conditioner) | 4 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 7 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Engine Related Parts And Electrical System : Radiator Shutter
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***16 | Screw,(Sandy And Dusty Terrain S.) | 4 |
| 01***03 | Nut,(With Joy Stick Steering) | 4 |
Guard
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Guard : Canopy (Canvas)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 8 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***35 | Bolt,R.H. Outside And L.H. Inside | 16 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Guard : Canopy(#60001-60984)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***45 | Bolt,(For Power Tilt Mech Angle) | 8 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Guard : Canopy(#60985-67009)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***45 | Bolt,(For Power Tilt Mech Angle) | 12 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Guard : Canopy(#67010-)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***45 | Bolt,(For Power Tilt Mech Angle) | 12 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 8 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Guard : Cross Bar
| 01***40 | Bolt,R.H. Outside And L.H. Inside, Bolt | 8 |
| 01***45 | Bolt,(For Travel Motor) (Not Show) | 16 |
| 01***45 | Bolt | 8 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Guard : Head Guard
| 01***40 | Bolt,R.H. Outside And L.H. Inside, Bolt | 18 |
| 01***75 | Bolt | 24 |
| 01***42 | Washer,Spring (For Pedal Steering), Washer-Spring | 18 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Guard : Loader Frame And Floor Plate (For Lever Steering)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 12 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***55 | Bolt,(For Reinforced Type) | 12 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Guard : Loader Frame And Floor Plate (For Pedal Steering)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 12 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***35 | Bolt,R.H. Outside And L.H. Inside | 2 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Guard : Loader Frame And Floor Plate (With Rops Cab)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 12 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***55 | Bolt,(For Reinforced Type) | 12 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Guard : Operator'S Seat (Rigid Type) (For Lever Steering)
| 01***25 | Bolt,Without Revolution Sensor | 4 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 10 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Guard : Operator'S Seat (Rigid Type) (For Pedal Steering)
| 01***25 | Bolt,Without Revolution Sensor | 4 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 10 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Guard : Operator'S Seat (With Oil Damper)
| 01***25 | Bolt,Without Revolution Sensor | 4 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 16 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Guard : Radiator Guard And Hood
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 11 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 8 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Guard : Radiator Guard And Hood (With Engine Side Cover)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 11 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 8 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Guard : Rear Cover And Hydraulic Tank (With Rops Cab)
| 01***20 | Bolt,(With Auto Emergency Steering) | 3 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Guard : Rear Cover And Hydraulic Tank(#60001-63996)
| 01***20 | Bolt,(With Auto Emergency Steering) | 3 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Guard : Rear Cover And Hydraulic Tank(#63997-)
| 01***20 | Bolt,(With Auto Emergency Steering) | 3 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***40 | Bolt,(With Service Valve R.H.) | 4 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Guard : Rops Bracket
| 01***40 | Bolt,R.H. Outside And L.H. Inside, Bolt | 26 |
| 01***45 | Bolt, Mount Center Hinge Retainer (Upper) | 8 |
| 01***42 | Washer,Spring (For Pedal Steering), Washer-Spring | 34 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Guard : Rops Cab (1/5) (Body)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
| 01***16 | Screw,(Sandy And Dusty Terrain S.) | 6 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Guard : Rops Cab (2/5) (Front And Rear Window)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 4 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 6 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Guard : Rops Cab (3/5) (Door And Side Window)
| 01***20 | Bolt,(Without Maintenance Monitor) | 4 |
| 01***45 | Bolt | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 10 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Guard : Rops Cab (4/5) (Electrical System)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 8 |
| 01***12 | Screw,(Additional Sun Visor) | 1 |
| 01***20 | Screw - Turn Signal And Parkinglight Mounting | 2 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Guard : Rops Cab (5/5) (Mounting Parts)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 9 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 5 |
| 01***19 | Washer,Spring (With Extinguisher) (D31p) | 9 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Guard : Rops Canopy
| 01***80 | Washer,(For R.H. Steering) | 4 |
| 10***10 | Guard,Rops Canopy | 1 |
| 10***10 | Pad,Rear | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Guard : Under Guard
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***30 | Bolt-Hex, Bolt,(With Center Guard) | 12 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 3 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Guard : Under Guard (With Front Hook)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***30 | Bolt-Hex, Bolt,(With Center Guard) | 12 |
| 01***45 | Bolt, Mount Center Hinge Retainer (Upper) | 6 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Guard : Water Valve (For Car Heater)
| 07***59 | Clamp,See Fig. K4010-05a0 | 4 |
| 09***00 | Valve | 1 |
| 10***20 | Hose | 2 |
Main Clutch?Transmission? Steering And Final Drive
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Main Clutch?Transmission? Steering And Final Drive : Bevel Gear And Shaft
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 6 |
| 01***30 | Bolt,(For Trimming Dozer) | 10 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 6 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Main Clutch?Transmission? Steering And Final Drive : Brake
| 01***45 | Bolt, Mount Center Hinge Retainer (Upper) | 8 |
| 01***23 | Plain Washer | 2 |
| 01***45 | Washer,(For Quick Shift) (Mitsubishi) | 8 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Main Clutch?Transmission? Steering And Final Drive : Final Drive Case
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***30 | Bolt,(With Body Positioner) | 16 |
| 01***70 | Bolt - Accumulator Mounting Bracket | 22 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Main Clutch?Transmission? Steering And Final Drive : Final Drive Gear
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 16 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 16 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Main Clutch?Transmission? Steering And Final Drive : Inertia Brake
| 01***20 | Bolt,(With Auto Emergency Steering) | 4 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 5 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Main Clutch?Transmission? Steering And Final Drive : Main Clutch Case
| 01***20 | Bolt,(With Auto Emergency Steering) | 4 |
| 01***25 | Bolt,Without Revolution Sensor | 4 |
| 01***30 | Bolt,(For Mechanical Governor) | 4 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Main Clutch?Transmission? Steering And Final Drive : Main Clutch Plate
| 01***10 | Bolt, Mount Flasher | 6 |
| 01***16 | Bolt (Welded) | 6 |
| 01***45 | Bolt,(For Suction? Reversible Fan) | 3 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Main Clutch?Transmission? Steering And Final Drive : Main Clutch Pump
| 04***15 | Ring, Snap | 1 |
| 07***01 | Pump Ass'Y (Fal10) | 1 |
| 07***60 | Seal,Oil | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Main Clutch?Transmission? Steering And Final Drive : Main Clutch Pump Drive And Relief Valve
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***70 | Bolt, Mount Bracket And Oil Inlet Tube, Bolt | 4 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 8 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Main Clutch?Transmission? Steering And Final Drive : Main Clutch Yoke
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 2 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Main Clutch?Transmission? Steering And Final Drive : Sprocket And Shaft
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
| 01***11 | Nut - Mounting | 24 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 8 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Main Clutch?Transmission? Steering And Final Drive : Steering Case And Main Frame
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***45 | Bolt,(For Power Tilt Mech Angle) | 11 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 11 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Main Clutch?Transmission? Steering And Final Drive : Steering Case Cover
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***50 | Bolt,(With Service Valve R.H.) | 18 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Main Clutch?Transmission? Steering And Final Drive : Steering Clutch
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 16 |
| 01***10 | Nut (K10) | 2 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 16 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Main Clutch?Transmission? Steering And Final Drive : Transmission (1/5) (Case)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***40 | Bolt, Mount Master Brake Cylinder | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 5 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Main Clutch?Transmission? Steering And Final Drive : Transmission (2/5) (Main Shaft And Gear)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***10 | Nut | 1 |
| 01***10 | Nut | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Main Clutch?Transmission? Steering And Final Drive : Transmission (3/5) (Intermediate Shaft And Gear)
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 3 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Main Clutch?Transmission? Steering And Final Drive : Transmission (4/5) (Counter Shaft And Gear)
| 01***16 | Bolt,(For Slag Handling) | 2 |
| 01***40 | Bolt, Mount Master Brake Cylinder | 3 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 3 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Main Clutch?Transmission? Steering And Final Drive : Transmission (5/5) (Shift Lever And Fork)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***12 | Screw,(With Articulate Indicator) | 4 |
| 01***20 | Screw,Set | 3 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Main Clutch?Transmission? Steering And Final Drive : Universal Joint
| 01***40 | Bolt,(With Air Conditioner) | 8 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 8 |
| 07***75 | Fitting,Grease (Without Lub. Piping) | 1 |
Mark Plate? Tool And Kit
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Mark Plate? Tool And Kit : Accessory Parts (Except Japan)
| 11***11 | Seat,Chassis | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Mark Plate? Tool And Kit : Marks And Plates (English)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 09***00 | Plate? Safety,Inspection And Maintenance | 1 |
| 09***35 | Plate? Name,(Limited Supply) (English) | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Mark Plate? Tool And Kit : Marks And Plates (Spanish)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 09***00 | Plate? Safety,Inspection And Maintenance | 1 |
| 09***35 | Plate? Name,(Limited Supply) (Spanish) | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Mark Plate? Tool And Kit : Spare Parts (Except Japan)
| 07***85 | O-Ring,(Without Fuel Level Gauge) | 1 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 4 |
| 07***22 | Plug,Steering Case | 8 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Mark Plate? Tool And Kit : Tool (Except Japan)
| 07***50 | Pump, (Bellows Type) | 1 |
| 07***03 | Cartridge - Grease | 1 |
| 07***45 | Nozzle, Grease Pump (Non-Flexible Type) | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Mark Plate? Tool And Kit : Vandalism Protection
| 07***20 | Cap,(Lock Type) | 1 |
| 09***02 | Lock,(With Vandalism Protection) | 1 |
| 09***03 | Lock | 1 |
Track
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Track : Carrier Roller
| 01***25 | Bolt,(For Slag Handling) | 1 |
| 01***25 | Bolt,Without Revolution Sensor | 3 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 8 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Track : Front Idler
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 12 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 2 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Track : Recoil Spring (Reinforced Type)
| 01***30 | Bolt,(For Mechanical Governor) | 4 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 8 |
| 01***35 | Bolt, Hydraulic Tank Mounting | 12 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Track : Recoil Spring(#60001-62313)
| 01***16 | Bolt (With Air Heater & Conditioner) | 4 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 8 |
| 01***40 | Bolt,R.H. Outside And L.H. Inside, Bolt | 8 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Track : Recoil Spring(#62314-)
| 01***30 | Bolt,(For Mechanical Governor) | 4 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 8 |
| 01***35 | Bolt, Hydraulic Tank Mounting | 12 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Track : Track Frame (With Mono Block Type Track Roller Guard)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 10 |
| 01***25 | Bolt,(For Rubber Shoe) | 36 |
| 01***35 | Bolt,R.H. Outside And L.H. Inside | 16 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Track : Track Frame (With Separate Type Track Roller Guard)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 10 |
| 01***25 | Bolt,(For Rubber Shoe) | 24 |
| 01***35 | Bolt,R.H. Outside And L.H. Inside | 16 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Track : Track Frame (With Separate Type Track Roller Guard) (For 6-Track Roller)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
| 01***25 | Bolt,(For Rubber Shoe) | 24 |
| 01***35 | Bolt,R.H. Outside And L.H. Inside | 16 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Track : Track Roller
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 12 |
| 01***45 | Bolt, Mount Center Hinge Retainer (Upper) | 40 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 12 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Track : Track Roller (For 6-Track Roller)
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 12 |
| 01***45 | Bolt, Mount Center Hinge Retainer (Upper) | 48 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 12 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Track : Track Shoe (Lubricate Type) (Single Grouser)
| 01***18 | Nut? Shoe (Kit) | 338 |
| 07***22 | Plug,Large | 74 |
| 07***21 | Plug,(Small) | 74 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Track : Track Shoe (Lubricate Type) (Swamp Type)
| 01***18 | Nut? Shoe (Kit) | 338 |
| 07***22 | Plug,Large | 74 |
| 07***21 | Plug,(Small) | 74 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Track : Track Shoe (Master Pin Type) (Flat Type With Hole)
| 01***18 | Nut? Shoe (Kit) | 346 |
| 10***20 | Link,Track? L.H | 74 |
| 10***21 | Link,Track? L.H | 74 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Track : Track Shoe (Master Pin Type) (Single Grouser)
| 01***18 | Nut? Shoe (Kit) | 346 |
| 10***21 | Link,Track? L.H | 74 |
| 10***31 | Link,Track? R.H | 74 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Track : Track Shoe (Master Pin Type) (Swamp Type)
| 01***18 | Nut? Shoe (Kit) | 346 |
| 10***20 | Link,Track? L.H | 74 |
| 10***21 | Link,Track? L.H | 74 |
Work Equipment
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Work Equipment : Angle Cylinder
| 04***20 | Ring, Snap | 4 |
| 07***70 | O-Ring,(For Intake Air Cover) | 1 |
| 07***65 | O-Ring,(F5350-62a0 -14 ) | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Work Equipment : Angle Tilt Blade
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 8 |
| 02***40 | Bolt,(Pl) | 21 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Work Equipment : Angle Tilt Frame
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 10 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***60 | Bolt, Mount Pole | 6 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Work Equipment : Dozer Lock
| 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 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Work Equipment : Hitch
| 01***40 | Bolt (Op) | 2 |
| 01***45 | Washer,(Without R.O.P.S.) | 2 |
| 10***12 | Drawbar | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Work Equipment : Hydraulic Piping (Angle Cylinder Line) (Dozer Side)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 3 |
| 07***12 | O-Ring (Itl) | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Work Equipment : Hydraulic Piping (Tilt Cylinder Line) (Dozer Side)
| 01***30 | Bolt,(For Mechanical Governor) | 1 |
| 01***35 | Bolt,(For Position Fixing) | 1 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Work Equipment : Hydraulic Piping Cover
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 9 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
| 01***45 | Bolt,(For Power Tilt Mech Angle) | 2 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Work Equipment : Swing Drawbar
| 01***45 | Bolt (Op) | 10 |
| 01***45 | Washer,(Without R.O.P.S.) | 10 |
| 04***12 | Pin,Cotter (For Ripper) | 2 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Work Equipment : Tilt Cylinder
| 01***18 | Bolt | 1 |
| 01***32 | Washer, (Without Emergency Steering) | 1 |
| 04***20 | Ring, Snap | 4 |
Work Equipment Control System
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Work Equipment Control System : Hydraulic Piping (Angle Cylinder Line) (Chassis Side)
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***09 | Nut,(With Body Positioner) | 2 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Work Equipment Control System : Hydraulic Piping (Lift Cylinder Line)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Work Equipment Control System : Hydraulic Piping (Tank To Pump To Valve)
| 01***30 | Bolt,(For Mechanical Governor) | 4 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Work Equipment Control System : Hydraulic Piping (Tilt Cylinder Line) (Chassis Side)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***09 | Nut,(With Body Positioner) | 4 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Work Equipment Control System : Hydraulic Tank And Filter
| 01***25 | Bolt,Without Revolution Sensor | 7 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***30 | Bolt? Wing,Inspection Cover | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Work Equipment Control System : Lift Cylinder
| 01***40 | Bolt, Mount Master Brake Cylinder | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
| 07***70 | O-Ring,(For Intake Air Cover) | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Work Equipment Control System : Work Equipment Control Lever (1/2)
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 8 |
| 01***30 | Bolt,(For Mechanical Governor) | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Work Equipment Control System : Work Equipment Control Lever (2/2)
| 01***05 | Nut,L.H. Thread (D31s) | 1 |
| 01***05 | Nut,L.H. (For Trimming Dozer) | 1 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Work Equipment Control System : Work Equipment Pump
| 04***15 | Ring, Snap | 1 |
| 70***10 | Seal, Oil | 1 |
| 70***70 | Plate | 1 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Work Equipment Control System : Work Equipment Valve (1/2)
| 01***16 | Bolt (Op) | 8 |
| 01***25 | Bolt, Seal Cover Mounting | 2 |
| 01***30 | Bolt | 2 |
Komatsu : D20p-6a(S/N 60001-Up (Power Angle Tilt Dozer)) : Work Equipment Control System : Work Equipment Valve (2/2)
| 01***08 | Nut (Op) | 1 |
| 07***11 | O-Ring (Kit) | 1 |
| 07***14 | O-Ring,(F4350-61a0a-20 ) | 1 |
D20P-6A(S/N 60001-UP (Power Angle Tilt Dozer)) serial number reference
The serial number plate is located on the front frame casting, typically on the operator's left side near the radiator support. Match the model designation and serial range (60001-UP) on the plate against the parts catalog header. For export-market machines, use the chassis serial for parts sourcing.
| Prefix | Identifies | Notes |
|---|---|---|
| DNH | D20P-6A (Power Angle Tilt Dozer) | Identifies the D20P-6A configuration for serial numbers 60001 and up. This is a 4-metric-ton class wide-track dozer equipped with a 4D95S-W-1 engine and direct-drive transmission. Verify the full PIN on the machine plate to distinguish from other D2/P-6 variants. |
Frequently asked questions
What engine is installed in the D20P-6A?
The machine is powered by a Komatsu 4D95S-W-1 four-cylinder, naturally aspirated diesel engine with a displacement of 164.2 cu in (2.7 L).
What is the operating weight of this model?
The operating weight for the D20P-6A wide-track configuration is approximately 8686.3 lb (3940 kg).
What replaced the D20P-6A?
The machine belongs to the -6 generation; it was succeeded by later generations such as the -7 series.
What D20P-6A(S/N 60001-UP (Power Angle Tilt Dozer)) owners discuss
What are the common symptoms of steering failure on the D20P-6A?
Operators report left-side steering loss after approximately 20 minutes of operation. Symptoms include the machine failing to turn, a sensation of the brake engaging, and engine bogging down during the event.
What are the primary causes of hydraulic stiffness or maneuverability issues in this model?
Steering stiffness is typically linked to hydraulic system faults. Common causes include low fluid levels or leaks in the power steering pump.
What should be checked regarding the transmission and clutch assembly if steering becomes erratic?
Mechanics note potential steering clutch and plate wear. Additionally, leaking sprocket seals can lead to oil contamination within the system.
What engine-related overheating issues are frequently discussed for this series?
Common observations include antifreeze boiling out of the radiator, which may indicate a faulty thermostat, a failing water pump, or a clogged radiator.
What is the standard undercarriage configuration for the D20P-6A (S/N 60001-UP)?
The machine features 37 shoes per side, 5 track rollers per side, a track pitch of 5.32 in (135 mm), and a standard shoe size of approximately 20.08 in (510 mm).
What should be checked when buying a used D20P-6A to ensure powertrain integrity?
Inspect the main clutch case oil levels and check for leaks in the sprocket seals. Verify the condition of the transmission/bevel gear case and final drive oil, as these components are critical to steering and drive performance.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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