Komatsubulldozersmall ( - d39)
Komatsu D20PLL-6(S/N 60001-UP)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu D20PLL-6 (S/N 60001-UP) is a compact crawler tractor designed for utility earthmoving and light grading. This machine belongs to the dash-6 generation, featuring a 4-cylinder 4D95S-W1 engine producing 40 hp (29.8 kW). It operates in the approximately 4-metric-ton class with an operating weight of 10,295.6 lb (4,670 kg). The series includes various configurations such as the D20P and D20PL variants, often utilized for their maneuverable footprint and direct drive transmission.
The dash-6 series represents a significant era in Komatsu's utility lineup, predating the Tier 3 emissions standards of later generations. This machine remains highly relevant in the used parts market due to the high availability of components for the 4D95S engine and commonality across D20 and D21 chassis variants. Its robust direct drive system and simple mechanical architecture make it a preferred choice for secondary applications where low-cost maintenance and reliability are prioritized over advanced telematics.
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 D20PLL-6(S/N 60001-UP) specifications
Engine
| Engine Model | 4D9AS-W1 |
| Engine Manufacturer | Komatsu |
| Number of Cylinders | 4 |
| Gross Power | 40 hp (29.8 kW) |
| Power Measured @ RPM | 2450 rpm |
| Displacement | 180.7 cu in (2,961 cc) |
Weights
| Operating Weight | 10,295.6 lb (4,670 kg) |
Dimensions
| Length w/ Blade | 11.96 ft in (3,645 mm) |
| Length w/o Blade | 9.62 ft in (2,930 mm - 2,957 mm) |
| Width Over Tracks | 9.49 ft in (2,890 mm - 2,896 mm) |
| Height To Top of Cab | 8.21 ft in (2,500 mm - 2,530 mm) |
| Length of Track on Ground | 6.85 ft in (2,085 mm - 2,103 mm) |
| Ground Clearance | 1.17 ft in (355 mm - 366 mm) |
| Track Gauge | 6.04 ft in (1,840 mm - 1,859 mm) |
| Standard Shoe Size | 41.34 in (1,050 mm - 1,052 mm) |
Undercarriage
| Number of Track Rollers Per Side | 7 |
| Number of Carrier Rollers Per Side | 2 |
| Number of Shoes Per Side | 43 |
| Track Pitch | 5.32 in (135 mm - 137 mm) |
Performance
| Transmission Type | Direct Drive (DD) |
| Number of Forward Gears | 3 |
| Number of Reverse Gears | 2 |
Blades
| Standard Blade Width | 10.5 ft in (3,200 mm) |
| Standard Blade Height | 19.7 in (500 mm) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
D20PLL-6(S/N 60001-UP) 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 (API CC acceptable but halves the normal oil-change interval). Viscosity: SAE 10W below ~10°C (50°F); SAE 30 above ~10°C (50°F); SAE 10W-30 or SAE 15W-40 multigrade for -10°C to 30°C+ (14°F to 86°F+). Use SAE 10W, 10W-30, or 15W-40 even for cold start-ups below 0°C (32°F). |
| Cooling system | 10 L specified (2.6 US gal) | Water with antifreeze added for cold-climate operation (below ~0°C/32°F). |
| Fuel tank | 60 L specified (15.9 US gal) | Diesel fuel meeting ASTM D975 No. 2 for normal ambient temperatures (~0°C/32°F and up); ASTM D975 No. 1 diesel for very cold conditions below ~-10°C (14°F). |
| Transmission / Bevel gear case | 16.5 L specified and refill (4.4 US gal) | Komatsu engine oil. SAE 10W below ~10°C (50°F); SAE 30 above ~10°C (50°F). |
| Main clutch case | 6 L specified and refill (1.6 US gal) | Komatsu engine oil, SAE 10W grade. |
| Final drives (each) | 8 L specified and refill per side (2.1 US gal) | Komatsu engine oil. SAE 10W below ~10°C (50°F); SAE 30 above ~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. SAE 10W at cold end; SAE 10W-30 or SAE 15W-40 multigrade for most temperature ranges. |
| Grease points | Standard multipurpose chassis grease; no specific brand or NLGI grade listed in the operation and फीसद maintenance manual. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Komatsu D20PLL-6(S/N 60001-UP) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
Servicing the D20PLL-6(S/N 60001-UP) beyond the schedule
Predictive Maintenance & Fluid Analysis
Monitor the 4D9SS-W1 engine oil and hydraulic fluid for particulate contamination. Regular analysis of Komatsu engine oil and hydraulic oil can prevent premature wear in the 4-cylinder powertrain. Pay close attention to coolant clarity to avoid radiator scaling. Use only approved Komatsu lubricants to maintain seal integrity within the direct drive transmission and hydraulic pump assemblies.
Corrective & Common Repairs
Address steering or reverse capability loss by inspecting hydraulic pressure and fluid levels, as low pressure often impacts direction control. Monitor track tension frequently; loose tracks increase wear on 7 track rollers per side and 2 carrier rollers. Inspect the standard blade for edge wear and check all mounting pins for excessive play to maintain effective grading performance.
Overhaul & Rebuild Points
Plan major overhauls around engine displacement limits and transmission fatigue. When rebuilding, focus on the 4D95S-W1 cylinder head and fuel injection components. Inspect the undercarriage for significant wear on the 43 shoes per side and track pitch degradation. Rebuilding the direct drive transmission requires careful inspection of gear teeth and clutch engagement surfaces to restore factory power delivery.
Seasonal & Environment Servicing
In dusty environments, increase frequency of air cleaner inspections to protect engine intake. During cold operations, ensure hydraulic fluid viscosity is appropriate for the 4D95S-W1 engine start-up. For wet or muddy conditions, clean all undercarriage components daily to prevent mud buildup from increasing track tension and accelerating wear on the 7 rollers per side and track pins.
D20PLL-6(S/N 60001-UP) 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.
D20PLL-6(S/N 60001-UP) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| E10 | Engine controller power failure or engine management system malfunction | Engine controller power supply failure or engine control drive system circuit failure | Inspect ECM power connections, fuses, or ground wires |
| E11 | Engine control failure causing reduction of output power to protect engine | Engine protection mode triggered by system error | Check coolant temperature, oil pressure, and air filter |
| E14 | Failure of the feedback system | Feedback system malfunction | Inspect feedback sensor circuitry |
| E15 | Engine sensor malfunction | Fault in temperature, fuel pressure, or oil pressure sensors | Inspect engine sensors for faults |
| E03 | Parking brake system error | Fault in the parking/turnaround brake system | Troubleshell parking brake system components |
| CA115 | Engine crankshaft speed sensor and speed sensor malfunction | Broken sensor, wiring issue, or connector corrosion | Replace the speed sensor and verify voltage at the pin connector |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
D20PLL-6(S/N 60001-UP) attachments & work tools
Blades
Standard blade width is 3200 mm (10.5 ft to 11 ft) with a height of 50 cm (19.7 in) to 590 mm (23.3 in), varies by configuration/series.
Rippers
Ripper shanks and cylinders are available for this class; specific multi-shank vs single-shank configurations are not documented for this exact serial range — verify with your dealer.
Winches
Not documented for this exact serial range — verify with your dealer.
Drawbars/counterweights
Drawbar and counterweight attachments are available components for Komatsu bulldozer series.
Cab/ROPS guarding options
Window guards, tank guards, and ROPS bars are available for Komatsu bulldozer configurations.
Hydraulic arrangement notes
The machine utilizes a direct drive transmission; hydraulic system refill capacities are detailed in the factory shop manual.
All D20PLL-6(S/N 60001-UP) assemblies by section
Every catalogued assembly group for the Komatsu D20PLL-6(S/N 60001-UP). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
4d95s-W-1f-Pl S/N 23318-Up
Komatsu : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl 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 : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl 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 : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl 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 : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl S/N 23318-Up : Alternator (15a)
| 60***60 | Alternator A. (15a) | 1 |
| KD***70 | Cover | 1 |
| KD***30 | Retainer | 2 |
Komatsu : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl 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 : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl S/N 23318-Up : Alternator And Mounting (15a)
| 01***25 | Bolt,(With Corrosion Resistor) | 1 |
| 01***45 | Bolt | 1 |
| 01***06 | Nut | 1 |
Komatsu : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl 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 : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl S/N 23318-Up : Camshaft And Tappet
| 01***20 | Screw | 2 |
| 04***16 | Fitting Wedge | 1 |
| 62***31 | Thrust Washer | 1 |
Komatsu : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl S/N 23318-Up : Crankshaft
| 61***20 | Bolt | 1 |
| 62***00 | Crankshaft Ass'Y | 1 |
| 62***00 | Main Metal Ass'Y | 5 |
Komatsu : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl S/N 23318-Up : Cylinder Block
| 01***55 | Bolt, Mount Tube To Switch Pump | 8 |
| 01***16 | Screw | 1 |
| 01***20 | Screw | 2 |
Komatsu : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl 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 : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl S/N 23318-Up : Cylinder Head Cover
| 61***10 | Cap, Oil Filler | 1 |
| 61***20 | Screw | 3 |
| 61***30 | Washer,(B) | 3 |
Komatsu : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl S/N 23318-Up : Exhaust Manifold And Muffler
Komatsu : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl 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 : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl 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 : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl S/N 23318-Up : Front Cover And Gear
| 01***10 | Bolt | 1 |
| 01***70 | Bolt,(For 75a Alternator) | 1 |
| 01***16 | Bolt | 2 |
Komatsu : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl 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 : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl 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 : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl 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 : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl 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 : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl S/N 23318-Up : Fuel Injection Pump (Governor) (2/2)
Komatsu : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl 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 : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl 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 : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl S/N 23318-Up : Fuel Injection Pump And Piping
| 01***35 | Stud | 4 |
| 01***12 | Bolt | 2 |
| 01***25 | Screw | 2 |
Komatsu : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl S/N 23318-Up : Fuel Nozzle And Spill Pipe
| 07***50 | Tube,Spill | 1 |
| 07***55 | Tube,Spill | 1 |
| 07***85 | Clip | 2 |
Komatsu : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl 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 : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl 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 : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl 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 : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl 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 : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl 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 : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl 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 : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl 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 : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl 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 : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl 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 : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl 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 : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl 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 : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl 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 : D20pll-6(S/N 60001-Up) : 4d95s-W-1f-Pl S/N 23318-Up : Water Separator And Piping(#43240-)
Control System
Komatsu : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : Control System : Steering Piping
| 01***20 | Bolt,(With Auto Emergency Steering) | 1 |
| 01***50 | Bolt (Kit) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
Komatsu : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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***10 | Terminal? (+) | 2 |
Komatsu : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : Engine Related Parts And Electrical System : Engine Mounting Parts
| 01***10 | Bolt (Op) | 4 |
| 10***20 | Cushion | 4 |
| 10***30 | Cushion | 4 |
Komatsu : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : Engine Related Parts And Electrical System : Instrument Panel (For Lever Steering) (For Quick Heater)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***08 | Screw, Terminal | 2 |
Komatsu : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 |
Guard
Komatsu : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : Guard : Canopy(#60001-60144)
| 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 : D20pll-6(S/N 60001-Up) : Guard : Canopy(#60145-60888)
| 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 : D20pll-6(S/N 60001-Up) : Guard : Canopy(#60889-)
| 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : Guard : Radiator Guard And Hood
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 11 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***50 | Bolt,(For Strengthened Cover) | 16 |
Komatsu : D20pll-6(S/N 60001-Up) : Guard : Radiator Guard And Hood (With Engine Side Cover Separate Type)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 11 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
Komatsu : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : Guard : Rear Cover And Hydraulic Tank(#60001-60532)
| 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 : D20pll-6(S/N 60001-Up) : Guard : Rear Cover And Hydraulic Tank(#60533-)
| 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : Guard : Rops Cab (Body) (1/5)
| 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 : D20pll-6(S/N 60001-Up) : Guard : Rops Cab (Door And Side Window) (3/5)
| 01***20 | Bolt,(Without Maintenance Monitor) | 4 |
| 01***45 | Bolt | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 10 |
Komatsu : D20pll-6(S/N 60001-Up) : Guard : Rops Cab (Electrical System) (4/5)
| 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 : D20pll-6(S/N 60001-Up) : Guard : Rops Cab (Front And Rear Window) (2/5)
| 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 : D20pll-6(S/N 60001-Up) : Guard : Rops Cab (Mounting Parts) (5/5)
| 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 : D20pll-6(S/N 60001-Up) : Guard : Rops Canopy
| 01***80 | Washer,(For R.H. Steering) | 4 |
| 10***10 | Guard,Rops Canopy | 1 |
| 10***10 | Pad,Rear | 1 |
Komatsu : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : Guard : Water Valve (For Car Heater)
| 07***59 | Clamp,See Fig. K4010-05a0 | 4 |
| 09***00 | Valve | 1 |
| 10***20 | Hose | 2 |
Main Clutch? Damper ?Transmission? Steering And Final Drive
Komatsu : D20pll-6(S/N 60001-Up) : Main Clutch? Damper ?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 : D20pll-6(S/N 60001-Up) : Main Clutch? Damper ?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 : D20pll-6(S/N 60001-Up) : Main Clutch? Damper ?Transmission? Steering And Final Drive : Final Drive Case
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 16 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***70 | Bolt - Accumulator Mounting Bracket | 22 |
Komatsu : D20pll-6(S/N 60001-Up) : Main Clutch? Damper ?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 : D20pll-6(S/N 60001-Up) : Main Clutch? Damper ?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 : D20pll-6(S/N 60001-Up) : Main Clutch? Damper ?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 : D20pll-6(S/N 60001-Up) : Main Clutch? Damper ?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 : D20pll-6(S/N 60001-Up) : Main Clutch? Damper ?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 : D20pll-6(S/N 60001-Up) : Main Clutch? Damper ?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 : D20pll-6(S/N 60001-Up) : Main Clutch? Damper ?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 : D20pll-6(S/N 60001-Up) : Main Clutch? Damper ?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 : D20pll-6(S/N 60001-Up) : Main Clutch? Damper ?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 : D20pll-6(S/N 60001-Up) : Main Clutch? Damper ?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 : D20pll-6(S/N 60001-Up) : Main Clutch? Damper ?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 : D20pll-6(S/N 60001-Up) : Main Clutch? Damper ?Transmission? Steering And Final Drive : Transmission (Case) (1/5)
| 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 : D20pll-6(S/N 60001-Up) : Main Clutch? Damper ?Transmission? Steering And Final Drive : Transmission (Counter Shaft And Gear) (4/5)
| 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 : D20pll-6(S/N 60001-Up) : Main Clutch? Damper ?Transmission? Steering And Final Drive : Transmission (Intermediate Shaft And Gear) (3/5)
| 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 : D20pll-6(S/N 60001-Up) : Main Clutch? Damper ?Transmission? Steering And Final Drive : Transmission (Main Shaft And Gear) (2/5)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***10 | Nut | 1 |
| 01***10 | Nut | 1 |
Komatsu : D20pll-6(S/N 60001-Up) : Main Clutch? Damper ?Transmission? Steering And Final Drive : Transmission (Shift Lever And Fork) (5/5)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***12 | Screw,(With Articulate Indicator) | 4 |
| 01***20 | Screw,Set | 3 |
Komatsu : D20pll-6(S/N 60001-Up) : Main Clutch? Damper ?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 : D20pll-6(S/N 60001-Up) : Mark Plate? Tool And Kit : Accessory Parts (Except Japan)
| 11***11 | Seat,Chassis | 1 |
Komatsu : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : 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 | 16 |
Komatsu : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : Track : Recoil Spring(#60001-60322)
| 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 : D20pll-6(S/N 60001-Up) : Track : Recoil Spring(#60323-)
| 01***30 | Bolt,(For Mechanical Governor) | 4 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 8 |
| 01***35 | Bolt, Hydraulic Tank Mounting | 12 |
Komatsu : D20pll-6(S/N 60001-Up) : Track : Track Frame
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 10 |
| 01***25 | Bolt,(For Rubber Shoe) | 32 |
| 01***35 | Bolt,R.H. Outside And L.H. Inside | 16 |
Komatsu : D20pll-6(S/N 60001-Up) : Track : Track Roller
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 12 |
| 01***45 | Bolt, Mount Center Hinge Retainer (Upper) | 56 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 12 |
Komatsu : D20pll-6(S/N 60001-Up) : Track : Track Shoe (Lubricate Type) (Swamp Type)
| 01***18 | Nut? Shoe (Kit) | 378 |
| 07***22 | Plug,Large | 86 |
| 07***21 | Plug,(Small) | 86 |
Komatsu : D20pll-6(S/N 60001-Up) : Track : Track Shoe (Master Pin Type) (Swamp Type)
| 01***18 | Nut? Shoe (Kit) | 394 |
| 10***20 | Link,Track? L.H | 86 |
| 10***21 | Link,Track? L.H | 86 |
Work Equipment
Komatsu : D20pll-6(S/N 60001-Up) : Work Equipment : Hitch
| 01***40 | Bolt (Op) | 2 |
| 01***45 | Washer,(Without R.O.P.S.) | 2 |
| 10***12 | Drawbar | 1 |
Komatsu : D20pll-6(S/N 60001-Up) : Work Equipment : Hydraulic Piping (Tilt Cylinder Line) (Dozer Side)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 12 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
Komatsu : D20pll-6(S/N 60001-Up) : Work Equipment : Lift Cylinder Lock
Komatsu : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : Work Equipment : Tilt Blade
| 01***55 | Bolt,(10m) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***09 | Nut,(With Body Positioner) | 2 |
Komatsu : D20pll-6(S/N 60001-Up) : Work Equipment : Tilt Cylinder
| 07***80 | O-Ring,Hydraulic Oil Filter | 1 |
| 07***75 | O-Ring,Cylinder Head | 1 |
| 07***75 | Ring,Back-Up (Kit) | 1 |
Komatsu : D20pll-6(S/N 60001-Up) : Work Equipment : Tilt Frame
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***40 | Bolt,(With Service Valve R.H.) | 16 |
| 01***45 | Bolt, Mount Center Hinge Retainer (Upper) | 12 |
Work Equipment Control System
Komatsu : D20pll-6(S/N 60001-Up) : Work Equipment Control System : Hydraulic Piping (Lift Cylinder Line)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
Komatsu : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : Work Equipment Control System : Hydraulic Piping (Tilt Cylinder Line) (Chassis Side)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***09 | Nut,(With Body Positioner) | 4 |
Komatsu : D20pll-6(S/N 60001-Up) : 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 : D20pll-6(S/N 60001-Up) : Work Equipment Control System : Lift Cylinder(#60001-60204)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***25 | Bolt | 1 |
| 01***09 | Nut (Itl) | 1 |
Komatsu : D20pll-6(S/N 60001-Up) : Work Equipment Control System : Lift Cylinder(#60205-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***25 | Bolt | 1 |
| 01***09 | Nut (Itl) | 1 |
Komatsu : D20pll-6(S/N 60001-Up) : Work Equipment Control System : Work Equipment Control Lever
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 8 |
| 01***30 | Bolt,(For Mechanical Governor) | 1 |
Komatsu : D20pll-6(S/N 60001-Up) : Work Equipment Control System : Work Equipment Pump
| 04***15 | Ring, Snap | 1 |
| 70***10 | Seal, Oil | 1 |
| 70***70 | Plate | 1 |
Komatsu : D20pll-6(S/N 60001-Up) : Work Equipment Control System : Work Equipment Valve (1/2)
| 01***16 | Bolt (Op) | 4 |
| 01***25 | Bolt, Seal Cover Mounting | 2 |
| 01***30 | Bolt | 2 |
Komatsu : D20pll-6(S/N 60001-Up) : 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 |
D20PLL-6(S/N 60001-UP) serial number reference
The PIN plate is located on the front frame casting, typically on the operator's left side near the radiator support. Read the model designation (e.g., 'D20PLL-6') and the serial number (e.g., '60001-UP') from the plate to confirm the machine identity.
| Prefix | Identifies | Notes |
|---|---|---|
| D | D20PLL-6 | Identifies the Crawler Dozer family. The numeric portion (20) indicates the size class. The '-6' dash-number denotes the generation/series. Serial numbers for this specific model start at 60001. |
Frequently asked questions
What engine is used in the D20PLL-6?
The machine is powered by a Komatsu 4D95S-W1, a 4-cylinder diesel engine with a displacement of approximately 180.7 cu in (3 L).
What is the operating weight of this model?
The standard operating weight for the D20PLL-6 is 10,295.6 lb (4,670 kg).
What replaced the D20PLL-6?
The machine was part of the dash-6 generation; it was succeeded by later generations such as the dash-7 series, which introduced different emissions tiers and updated hydraulic systems.
What D20PLL-6(S/N 60001-UP) owners discuss
What are the common steering and transmission issues reported for this machine series?
Operators report that steering loss can occur after approximately 20 minutes of operation or once the machine reaches operating temperature. Potential causes include worn steering pumps, internal leaks, stuck cylinders, or seized linkages due to insufficient lubrication. Regarding the transmission, some users have noted issues with the ability to back up under specific loads, such as when working on an incline.
What engine is installed in the Komatsu D20PLL-6 (S/N 60001-UP) and what are its primary specs?
The machine uses a 4-cylinder 4D95S-W1 diesel engine. It features a displacement of approximately 180.7 cu in (2,961 cc to 3 L) and produces 40 hp (29.8 kW to 30 kW) at 2450 rpm.
What undercarriage components and wear patterns should be monitored?
The undercarriage consists of 43 shoes per side with a standard shoe size of approximately 41.34 in (105 cm). The assembly includes 7 track rollers and 2 carrier rollers per side. Users should monitor the track pitch, which is rated at roughly 5.32 in to 5.4 in (135 mm to 137 mm), for uneven wear.
Are there specific fluid or lubrication concerns for this model?
Maintaining correct hydraulic fluid levels and quality is critical. There are reports of performance issues when incorrect oils, such as Universal Tractor Fluid, are used. For engine maintenance, ensure compliance with Komatsu genuine oil specifications to prevent internal component wear.
What electrical or sensor-related fault codes should an operator look for?
Commonly reported Komatsu fault codes include E10 (engine controller power supply failure or engine control drive system circuit failure, which may cause the engine to stop), E11 (engine control system failure resulting in reduced output power), and E15 (failure of sensors related to coolant temperature, fuel pressure, or oil pressure). If E15 is present, have your dealer verify sensor integrity.
What should be checked when purchasing a used Komatsu D20PLL-6?
Verify the serial number on the chassis plate against any stamped numbers on the frame casting to ensure the machine has not been tamally altered. Check the condition of the transmission by testing forward and reverse gears under load. Inspect the undercarriage for uneven shoe or roller wear, and check the engine compartment for signs of water or condensation ingress.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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