Komatsu D57S-1B(S/N 20001-UP (S6D108-1 Eng. Installed))
Komatsubulldozermedium (d40 - d75)

Komatsu D57S-1B(S/N 20001-UP (S6D108-1 Eng. Installed))

Maintenance schedule, common problems & OEM parts breakdown

The Komatsu D57S-1B is a medium-class crawler bulldozer produced from 1979 to 1986. It is powered by the S6D108-1 engine and features a transport length of 5.47 meters (17 ft 11 in), a transport width of 2.15 meters (7 ft 1 in), and a transport height of 2.93 meters (9 ft 7 in). The machine has a standard operating length of 5.61 meters (18 ft 5 in) and a travel speed of 9.5 km/h (5.9 mph). It succeeded the D57S series and was followed by the D575A series in Komatsu's larger dozer lineup. Configurations included standard dozer and ripper setups.

The D57S-1B represents a transitional generation in Komatsu's medium dozer history, bridging the gap between earlier D57 models and the heavier D575A series. It matters in the used and parts market today because its S6D108-1 engine and robust undercarriage are widely compatible with other D57S, D58E, and D58P models, creating a large pool of interchangeable components. Its age makes it a target for rebuilds, driving demand for specific engine and transmission parts.

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 D57S-1B(S/N 20001-UP (S6D108-1 Eng. Installed)) specifications

Engine

ModelS6D108-1
TypeTurbocharged diesel

Weights

Operating Weight15,260 kg (33,640 lb)

Dimensions

Transport Length5.47 m (17.95 ft)
Transport Width2.15 m (7.04 ft)
Transport Height2.93 m (9.6 ft)
Track Gauge1.70 m (66.93 in)
Track Shoe Width400 mm (15.75 in)
Ground Clearance0.36 m (1.17 ft)

Performance

Travel Speed9.5 km/h (6 mph)
Ground Pressure74.5 kPa (10.81 psi)

Blades

Blade Capacity69 m³ (90 yd³)

Service Capacities

Fuel Capacity260 L (68.7 gal)
Cooling System Fluid Capacity58.3 L (15.4 gal)

Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.

Komatsu D57S-1B(S/N 20001-UP (S6D108-1 Eng. Installed)) maintenance schedule

Service intervalTasks
Every 10 h
  • Check engine oil level and condition.
  • Check hydraulic fluid level at sight glass.
  • Check coolant level and ensure cap is secure.
  • Drain water from fuel separator.
  • Check DEF level.
  • Check air filter restriction indicator.
  • Inspect track tension and shoe/pad condition.
  • Inspect hydraulic hoses for cracks or leaks.
  • Check pins, bushings, and attachment points.
  • Clear debris from radiator and oil cooler fins.
  • Check for fluid leaks under machine.
  • Verify ROPS/FOPS integrity and seat belt.
  • Test horn, backup alarm, and lights.
  • Ensure emergency shutoff is accessible.
  • Check gauges and KOMTRAX display for normal operation.
  • Test all controls for smooth response.
  • Check service and parking brakes.
Every 250 h
  • Change engine oil and filter.
  • Grease all points (blade, ripper, push arms, pivots).
  • Check fluid levels.
  • Check air filter outer element.
  • Inspect belts and hoses.
  • Perform visual walk-around.
Every 500 h
  • Replace fuel filter.
  • Replace hydraulic return filter.
  • Service battery and load test alternator.
  • Test coolant SCA.
  • Take KOWA oil sample.
  • Perform detailed undercarriage inspection.
Every 1,000 h
  • Take hydraulic oil sample.
  • Change final drive oil (both sides).
  • Inspect turbocharger.
  • Check valve adjustment.
  • Perform structural inspection.
  • Measure undercarriage wear.
Every 2,000 h
  • Change hydraulic oil.
  • Flush and replace coolant.
  • Service transmission/torque converter.
  • Perform comprehensive component evaluation.
  • Check KDPF (if equipped).
  • Torque ROPS bolts.
  • Check cutting edge and end bit bolt torque.

Servicing the D57S-1B(S/N 20001-UP (S6D108-1 Eng. Installed)) beyond the schedule

Predictive Maintenance & Fluid Analysis

Utilize KOWA oil analysis at every 500-hour interval to monitor engine wear metals and hydraulic contamination. Check coolant SCA levels at 500 hours to prevent scaling in the S6D108-1 cooling system. Monitor hydraulic oil particle counts to detect pump wear early. Track fuel dilution in engine oil samples to identify injector issues. Use KOMTRAX telematics to correlate load frequency with fluid degradation rates for optimized change intervals.

Corrective & Common Repairs

Address frequent S6D108-1 turbocharger inspections at 1,000 hours to prevent boost loss. Replace hydraulic return filters at 500 hours to protect valve spools from debris. Inspect final drive oil for metal particles at 1,000 hours to catch gear wear before failure. Check ROPS bolt torque at 1,000 hours for cab safety compliance. Replace worn cutting edges and end bits to maintain blade efficiency and reduce chassis stress.

Overhaul & Rebuild Points

Plan major engine overhaul around 10,000-12,000 hours based on compression and oil consumption trends. Rebuild hydraulic pumps and motors when KOWA analysis shows excessive copper or iron wear. Inspect undercarriage wear at 1,000-hour intervals; replace sprockets, idlers, and track chains when pitch elongation exceeds limits. Evaluate transmission clutch packs during the 2,000-hour service for slippage signs. Consider structural weld repairs on the frame and push arms during major overhauls.

Seasonal & Environment Servicing

In cold climates, check coolant freeze protection before winter. Drain water from the fuel separator daily to prevent ice formation. Use lower viscosity engine oil if operating below -18°C (0°F). In dusty environments, clean the air filter outer element more frequently and check the restriction indicator often. In wet conditions, inspect track tension daily to prevent slippage and check undercarriage for mud buildup that accelerates roller wear.

D57S-1B(S/N 20001-UP (S6D108-1 Eng. Installed)) common service parts

Part numberPart
07000-02135O-Ring,Hydraulic Oil FilterCheck fitment →
07000-05155O-Ring,Hydraulic Oil FilterCheck fitment →
07000-02075O-Ring,Steering Oil FilterCheck fitment →
6136-61-2190O-Ring,Oil Cooler ElementCheck fitment →
6136-61-2290Gasket,Oil Cooler ElementCheck fitment →

Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.

D57S-1B(S/N 20001-UP (S6D108-1 Eng. Installed)) fault codes & troubleshooting

CodeMeaningLikely causeWhat to do
E10Engine controller power failure; engine control drive system circuit malfunction.ECM power connections, fuses, or ground wires are compromised.Inspect ECM power connections, fuses, and ground wires.
E11Engine control system failure; output power reduced to protect the engine.Coolant temperature, oil pressure, or air filter issues.Check coolant temperature, oil pressure, and air filter.
CA115Engine crankshaft speed sensor and backup speed sensor failure.Broken sensor, wiring issue, or connector corrosion.Replace the speed sensor and verify voltage at the pin connector.
CA111Internal engine controller fault.ECM internal abnormality.Replace or reprogram the ECM.
CA441Battery voltage too low.Alternator, battery, or voltage regulator failure.Replace the alternator or battery; check the voltage regulator.
CA442Battery voltage too high.Alternator, battery, or voltage regulator failure.Replace the alternator or battery; check the voltage regulator.
CA122Intake air pressure sensor feedback voltage too high.Intake pressure sensor malfunction or wiring issue.Verify the intake pressure sensor and wiring.
CA123Intake air pressure sensor feedback voltage too low.Sensor short or airflow restriction.Check for a sensor short or an airflow restriction.
CA153Intake air temperature sensor feedback voltage too high.Intake air temperature sensor error.Replace or test the IAT sensor.
CA154Intake air temperature sensor feedback voltage too low.Intake air temperature sensor error.Replace or test the IAT sensor.

Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.

D57S-1B(S/N 20001-UP (S6D108-1 Eng. Installed)) attachments & work tools

Blades

The D57S-1 series supports standard (S), semi-universal (SU), and all-purpose (A) blade configurations, with VPAT availability varying by configuration and series. Typical widths and capacities are not documented for this exact serial range in the provided sources.

Rippers

Multi-shank rippers are available for this class, with single-shank options also offered for specific applications. Ripper weights and specific shank counts vary by configuration and series.

Winches

Towing winch options are available for the D57S-1 series, fitting the general class of attachments for this machine. Specific class ratings and capacities are not documented for this exact serial range in the provided sources.

Drawbars/Counterweights

Drawbars and counterweights are listed as available attachments for the D57S-1 series. Specific dimensions and weights vary by configuration and series.

Cab/ROPS Guarding

Forestry and waste configuration guarding options are not explicitly detailed in the provided sources for the D57S-1B. Verify specific guarding requirements with your dealer.

Hydraulic Arrangement

Hydraulic arrangement notes for front and rear tools are not documented for this exact serial range in the provided sources. Consult the factory spec sheet for specific hydraulic circuit details.

All D57S-1B(S/N 20001-UP (S6D108-1 Eng. Installed)) assemblies by section

Every catalogued assembly group for the Komatsu D57S-1B(S/N 20001-UP (S6D108-1 Eng. Installed)). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

Accessory
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Accessory : Tool (Except Japan)
07***50Pump, (Bellows Type)1
07***03Cartridge - Grease1
07***45Nozzle, Grease Pump (Non-Flexible Type)1
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Cooling System
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Cooling System : Radiator And Piping
01***30Bolt,(For Quick Shift) (Mitsubishi)3
01***30Bolt,(Not Used With Emergency Str.)2
01***45Bolt, Mounting Bracket To Radiator (Top)4
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Cooling System : Radiator And Piping (Noise Suppression For Ec)
01***20Bolt,(For Quick Shift) (Mitsubishi)2
01***25Bolt,(For Canvas Canopy?Head Guard)52
01***30Bolt,(For Quick Shift) (Mitsubishi)4
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Cooling System : Radiator Cover
01***20Bolt,(For Mono Lever Steering)2
01***25Bolt,(For Canvas Canopy?Head Guard)24
01***30Bolt,(With Body Positioner)4
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Cooling System : Radiator Cover (Noise Suppression For Ec)
01***12Bolt,(With Cylinder Cover)10
01***20Bolt,(For Quick Shift) (Mitsubishi)2
01***25Bolt,(For Canvas Canopy?Head Guard)24
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Electrical System
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Electrical System : Battery And Switch
01***10Bolt1
01***16Bolt - Seat And Tether Belt Mounting2
01***20Bolt, Wiring Harness Mounting Bracket2
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Electrical System : Electrical System
01***16Bolt, Battery To Frame Ground Wire Attaching34
01***25Bolt,(For Canvas Canopy?Head Guard)2
01***25Bolt,(Without Rops Guard? Canopy)4
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Electrical System : Electrical System (Tbg Spec.)
01***16Bolt, Battery To Frame Ground Wire Attaching34
01***25Bolt,(For Canvas Canopy?Head Guard)2
01***25Bolt,(Without Rops Guard? Canopy)4
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Engine Related Parts
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Engine Related Parts : Damper
01***20Bolt, Wiring Harness Mounting Bracket18
01***30Bolt,(With Body Positioner)8
01***90Capscrew4
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Engine Related Parts : Damper (Noise Suppression For Ec)
01***12Bolt,(With Cylinder Cover)6
01***20Bolt,(With Auto Emergency Steering)18
01***45Bolt,(For Power Tilt Mech Angle)8
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Engine Related Parts : Engine Mounting Parts
01***50Bolt4
01***30Bolt2
13***30Spacer2
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Fuel Tank And Related Parts
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Fuel Tank And Related Parts : Fuel Tank
01***20Bolt,(For Quick Shift) (Mitsubishi)3
01***12Bolt - M8 - 1.25 X 122
01***25Bolt,(For Canvas Canopy?Head Guard)6
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Fuel Tank And Related Parts : Fuel Tank (Noise Suppression For Ec)
01***12Bolt,(With Cylinder Cover)2
01***20Bolt,(For Quick Shift) (Mitsubishi)3
01***25Bolt,(For Canvas Canopy?Head Guard)6
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Guard
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Guard : Engine Bottom Guard
01***30Bolt,(Not Used With Emergency Str.)5
01***40Bolt,(With Center Guard)6
01***45Bolt,(For Travel Motor) (Not Show)8
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Guard : Engine Bottom Guard (Noise Suppression For Ec)
01***30Bolt,(Not Used With Emergency Str.)5
01***40Bolt,(With Center Guard)6
01***45Bolt,(For Travel Motor) (Not Show)8
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Guard : Engine Hood (Noise Suppression For Ec)
01***16Bolt,(Sandy And Dusty Spec.)2
01***20Bolt,(For Quick Shift) (Mitsubishi)2
01***20Bolt,(Without Rops Guard? Canopy)2
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Guard : Engine Side Cover (Noise Suppression For Ec)
01***20Bolt,(With Auto Emergency Steering)2
01***25Bolt,(For Canvas Canopy?Head Guard)2
01***25Bolt,(Without Rops Guard? Canopy)14
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Guard : Mount Bracket (For Rops Cab)
01***25Bolt,(Without Rops Guard? Canopy)1
01***30Bolt,(Not Used When Towing Winch)16
01***30Bolt - Pin Mounting1
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Guard : Radiator Guard (Noise Suppression For Ec)
01***60Bolt, Mount Tube To Switch Pump12
01***25Bolt,(Without Rops Guard? Canopy)8
01***35Bolt, Bolt, Mount Tubes To Switch And Work Pumps4
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Guard : Radiator Guard And Hood
01***20Bolt,(With Auto Emergency Steering)2
01***16Bolt, Battery To Frame Ground Wire Attaching2
01***20Bolt,(For Mono Lever Steering)2
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Guard : Rear Cover
01***35Bolt, Bolt, Mount Tubes To Switch And Work Pumps12
01***25Bolt,(Without Rops Guard? Canopy)10
01***30Bolt,(Not Used When Towing Winch)10
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Guard : Rear Cover (For Hydraluic Ripper) (Noise Suppression For Ec)
01***25Bolt,(Without Rops Guard? Canopy)10
01***30Bolt,(Not Used With Emergency Str.)10
01***35Bolt, Bolt, Mount Tubes To Switch And Work Pumps12
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Guard : Rear Cover (For Hydraulic Ripper)
01***25Bolt,(Without Rops Guard? Canopy)10
01***30Bolt,(Not Used With Emergency Str.)10
01***35Bolt, Bolt, Mount Tubes To Switch And Work Pumps12
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Guard : Rear Cover (Noise Suppression For Ec) (Tbg Spec.)
01***25Bolt,(Without Rops Guard? Canopy)10
01***30Bolt,(Not Used With Emergency Str.)10
01***35Bolt, Bolt, Mount Tubes To Switch And Work Pumps12
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Guard : Rear Frame Box
01***16Bolt (With Air Heater & Conditioner)2
01***25Bolt,(For Canvas Canopy?Head Guard)5
01***25Bolt,(Without Rops Guard? Canopy)32
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Guard : Rear Frame Box (For Hydraulic Ripper)
01***16Bolt (With Air Heater & Conditioner)2
01***25Bolt,(For Canvas Canopy?Head Guard)5
01***25Bolt,(Without Rops Guard? Canopy)32
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Guard : Rear Frame Box (For Hydraulic Ripper) (Noise Suppression For Ec)
01***16Bolt (With Air Heater & Conditioner)2
01***25Bolt,(For Canvas Canopy?Head Guard)5
01***25Bolt,(Without Rops Guard? Canopy)32
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Guard : Rear Frame Box (Noise Suppression For Ec) (Tbg Spec.)
01***16Bolt (With Air Heater & Conditioner)2
01***35Bolt,(For Quick Shift) (Mitsubishi)7
01***25Bolt,(Without Rops Guard? Canopy)30
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Guard : Rops Cab And Rops Canopy Bracket (Noise Suppression For Ec) (Tbg Spec.)
01***65Bolt, Mount Side Weights12
01***25Bolt,(Without Rops Guard? Canopy)1
01***30Bolt,(For Rubber Shoe)1
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Guard : Rops Cab And Rops Canopy Mount (Noise Suppression For Ec) (Tbg Spec.)
01***30Bolt,(Not Used With Emergency Str.)16
01***55Bolt16
01***22Nut (Op)4
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Hydraulic System
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Hydraulic System : Bucket Positioner
01***30Bolt3
01***16Bolt, Battery To Frame Ground Wire Attaching6
01***20Bolt,(For Quick Shift) (Mitsubishi)4
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Hydraulic System : Bucket Positioner (Noise Suppression For Ec)
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Hydraulic System : Hydraulic Filter
01***30Bolt,Radio Controlled Slag Handling1
01***35Bolt - Torque Converter Totransmission Mounting4
01***50Bolt10
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Hydraulic System : Hydraulic Piping (Dump Cylinder Line)
01***30Bolt,(For Mechanical Governor)4
01***35Bolt,(For Position Fixing)6
01***50Bolt (Kit)6
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Hydraulic System : Hydraulic Piping (For Hydraulic Ripper)
01***30Bolt,(Not Used With Emergency Str.)4
01***55Bolt, Mount Lh Bracket4
01***75Bolt, Tube Mounting4
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Hydraulic System : Hydraulic Piping (Lift Cylinder Line)
01***25Bolt,(For Canvas Canopy?Head Guard)1
01***30Bolt,(For Quick Shift) (Mitsubishi)4
01***50Bolt,(For Strengthened Cover)8
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Hydraulic System : Hydraulic Piping (Tank To Pump To Valve)
01***45Bolt,(Cold Terrain Spec.)4
01***25Bolt,(For Canvas Canopy?Head Guard)1
01***25Bolt,(Without Rops Guard? Canopy)2
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Main Frame And Related Parts
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Main Frame And Related Parts : Equalizer Bar
01***16Bolt, Battery To Frame Ground Wire Attaching2
01***35Bolt, Hydraulic Tank Mounting2
01***30Washer, Spring (Supplied W/Spider Assembly), Washer-Spring2
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Main Frame And Related Parts : Equalizer Bar (For Strengthened Track)
01***16Bolt, Battery To Frame Ground Wire Attaching2
01***35Bolt, Hydraulic Tank Mounting2
01***30Washer, Spring (Supplied W/Spider Assembly), Washer-Spring2
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Main Frame And Related Parts : Side Frame
01***35Bolt,R.H. Outside And L.H. Inside4
01***55Bolt3
01***75Bolt1
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Main Frame And Related Parts : Steering Case And Main Frame
01***25Bolt,(For Slag Handling)4
01***16Bolt (With Air Heater & Conditioner)2
01***20Bolt,(For Quick Shift) (Mitsubishi)2
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Main Frame And Related Parts : Steering Case And Main Frame (For Strengthened Track)
01***25Bolt,(For Slag Handling)4
01***16Bolt (With Air Heater & Conditioner)2
01***20Bolt,(For Quick Shift) (Mitsubishi)2
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Marks And Plates
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Marks And Plates : Marks And Plates (English)
04***60Screw,Machine Model (For Ec Reg.)4
09***00Plate? Safety,Inspection And Maintenance1
09***35Plate? Name,Machine (Limited Supply)1
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Marks And Plates : Marks And Plates (French)
04***60Screw,Machine Model (For Ec Reg.)4
09***00Plate? Safety,Inspection And Maintenance1
09***35Plate? Name,(Limited Supply) (For France)1
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Marks And Plates : Marks And Plates (German)
04***60Screw,Machine Model (For Ec Reg.)4
09***00Plate? Safety,Inspection And Maintenance1
09***35Plate? Name,(Limited Supply)1
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Marks And Plates : Marks And Plates (German) (Tbg Spec.)
04***60Screw,Machine Model (For Ec Reg.)4
09***00Plate? Safety,Inspection And Maintenance1
09***35Plate? Name,(Limited Supply) (German)1
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Marks And Plates : Marks And Plates (Italian)
04***60Screw,Machine Model (For Ec Reg.)4
09***00Plate? Safety,Inspection And Maintenance1
09***35Plate? Name,(Limited Supply)1
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Marks And Plates : Marks And Plates (Spanish)
04***60Screw,Machine Model (For Ec Reg.)4
09***00Plate? Safety,Inspection And Maintenance1
09***35Plate? Name,Machine (Limited Supply)1
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Marks And Plates : Rops Plates (For Rops Cab)
04***60Screw,Machine Model (For Ec Reg.)4
09***00Plate? Name,(Limited Supply) (Japanese)1
09***00Plate? Name,(Limited Supply) (Arabic)1
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Operator'S Compartment And Control System
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Brake Lock Lever
01***25Bolt,(Without Rops Guard? Canopy)5
01***16Screw1
01***06Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-108061
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Brake Lock Lever (Tbg Spec.)
01***25Bolt,(Without Rops Guard? Canopy)5
01***16Screw1
01***06Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-108061
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Bucket Control Lever
01***16Bolt (With Air Heater & Conditioner)4
01***30Bolt,(Not Used With Emergency Str.)6
01***45Bolt, Mounting Bracket To Radiator (Top)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Bucket Control Lever (For Multi-Purpose Bucket)
01***20Bolt,(Without Maintenance Monitor)4
01***20Bolt,(With Auto Emergency Steering)3
01***35Bolt,(For Quick Shift) (Mitsubishi)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Bucket Control Lever (For Multi-Purpose Bucket) (Noise Suppression For Ec)
01***20Bolt,(Without Maintenance Monitor)4
01***20Bolt,(With Auto Emergency Steering)3
01***35Bolt,(For Quick Shift) (Mitsubishi)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Bucket Control Lever (Noise Suppression For Ec)
01***16Bolt (With Air Heater & Conditioner)4
01***30Bolt,(Not Used With Emergency Str.)6
01***45Bolt, Mounting Bracket To Radiator (Top)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Bucket Kick Out
01***20Bolt,(Without Maintenance Monitor)2
01***30Bolt,(For Mechanical Governor)2
01***25Bolt,(For Canvas Canopy?Head Guard)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Bucket Kick Out (Noise Suppression For Ec)
01***20Bolt,(Without Maintenance Monitor)2
01***30Bolt,(For Mechanical Governor)2
01***25Bolt,(For Canvas Canopy?Head Guard)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Canopy
01***35Bolt,R.H. Outside And L.H. Inside8
01***50Bolt,(Shim Thickness?Less Than 8mm)8
01***35Bolt, Hydraulic Tank Mounting8
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Control Box
01***10Screw,(For Lighter)4
01***12Screw,(For Side Lamp) (Not Shown)2
01***20Screw - Turn Signal And Parkinglight Mounting2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Dashboard And Floor Palte (Noise Suppression For Ec) (Tbg Spec.)
01***30Bolt,(For Quick Shift) (Mitsubishi)10
01***30Bolt,(Not Used With Emergency Str.)8
01***35Bolt, Bolt, Mount Tubes To Switch And Work Pumps2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Dashboard And Floor Plate
01***50Bolt,(For Strengthened Cover)2
01***70Bolt, Accumulator Mounting Bracket8
01***30Bolt,(With Body Positioner)10
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Electrical System (For Rops Cab)
01***16Bolt - Box Mounting9
01***16Bolt, Battery To Frame Ground Wire Attaching12
01***20Bolt,(For Mono Lever Steering)6
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Floor Mat (For Rops Cab)
13***10Mat1
13***30Mat1
13***50Mat1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Fuel Control Lever
01***20Bolt,(For Quick Shift) (Mitsubishi)2
01***25Bolt,(For Canvas Canopy?Head Guard)1
01***30Bolt,(For Quick Shift) (Mitsubishi)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Fuel Control Linkage
01***30Bolt - M8 X 30lg1
01***25Bolt,(For Canvas Canopy?Head Guard)2
01***70Bolt2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Hydraulic Tank Cover (Noise Suppression For Ec)
01***15Nut4
01***30Washer, Spring (Supplied W/Spider Assembly), Washer-Spring4
13***50Bracket1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Instrument Panel
01***20Bolt,(Without Maintenance Monitor)2
01***20Bolt,(Without Air Con. Or Heater)4
01***16Screw,(P.O.C. Model) (Except Japan)6
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Operator'S Seat (Noise Suppression For Ec)
01***16Bolt (With Air Heater & Conditioner)4
01***20Bolt,(For Quick Shift) (Mitsubishi)13
01***20Bolt,(Without Rops Guard? Canopy)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Operator'S Seat (Tbg Spec.)
01***16Bolt (With Air Heater & Conditioner)2
01***20Bolt,(For Quick Shift) (Mitsubishi)13
01***25Bolt,(Without Rops Guard? Canopy)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Operator'S Seat (With Oil Damper And Reclining Device)(#20001-20142)
01***16Bolt,(For Slag Handling)4
01***20Bolt,(Large Capacity Type) (Std)13
01***20Bolt,(Used When Towing Winch)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Operator'S Seat(#20001-20142)
01***16Bolt,(For Slag Handling)4
01***20Bolt,(Used When Towing Winch)4
01***20Bolt,(For Mono Lever Steering)13
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Ripper Control Lever (For Hydraulic Ripper)
01***30Bolt,(For Mechanical Governor)2
01***25Bolt,(For Canvas Canopy?Head Guard)4
01***08Nut,(For Canvas Canopy?Head Guard)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Roof Lining (For Rops Cab)
01***16Bolt, Battery To Frame Ground Wire Attaching2
01***25Bolt,(For Canvas Canopy?Head Guard)14
01***10Screw,(With Air Conditioner)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Rops Cab (1/3)
01***16Bolt, Battery To Frame Ground Wire Attaching4
01***20Bolt,(For Mono Lever Steering)4
01***30Bolt,(With Body Positioner)22
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Rops Cab (2/3)
01***16Screw,(P.O.C. Model) (Except Japan)21
01***16Screw,(With Ashtray)28
01***08Screw2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Rops Cab (3/3)
01***20Bolt,(Without Air Con. Or Heater)4
01***40Bolt - M6 X 40lg4
01***16Bolt - Seat And Tether Belt Mounting8
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Steering And Inching Pedal
01***25Bolt,(For Canvas Canopy?Head Guard)2
01***30Bolt,(For Quick Shift) (Mitsubishi)3
01***30Bolt,(Not Used With Emergency Str.)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Steering Linkage (1/2)
01***30Bolt,(For Mechanical Governor)2
01***08Nut,R.H. Thread1
01***08Nut,(For Straight Tilt Dozer) (D65p)3
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Steering Linkage (2/2)
01***25Bolt,(Without Rops Guard? Canopy)4
01***40Bolt,(With Service Valve R.H.)2
01***10Nut,(Fig.F2820-01a3-12)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Transmission Control Lever
01***30Bolt,Radio Controlled Slag Handling4
01***25Bolt,(For Canvas Canopy?Head Guard)3
01***20Bolt,(Without Rops Guard? Canopy)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Transmission Control Lever (Tbg Spec.)
01***30Bolt,Radio Controlled Slag Handling4
01***20Bolt,(Without Rops Guard? Canopy)4
01***25Bolt,(Without Rops Guard? Canopy)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Operator'S Compartment And Control System : Transmission Control Linkage
01***30Bolt,(For Mechanical Governor)2
01***25Bolt,(Without Rops Guard? Canopy)2
01***30Bolt - M8 X 30lg2
See all parts with full part numbers in Heavy Parts AI →
Power Train And Final Drive
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Power Train And Final Drive : Bevel Gear And Shaft
01***10Bolt, Mount Flasher4
01***35Bolt - Torque Converter Totransmission Mounting6
01***20Bolt4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Power Train And Final Drive : Bevel Gear And Shaft (For Strengthened Track)
01***10Bolt, Mount Flasher4
01***35Bolt - Torque Converter Totransmission Mounting6
01***20Bolt4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Power Train And Final Drive : Brake Band
01***35Bolt,R.H. Outside And L.H. Inside8
01***08Nut, Regular Hexagon (M10-1.50)2
01***42Washer,Spring (For Pedal Steering), Washer-Spring8
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Power Train And Final Drive : Final Drive Gear
01***35Bolt - Torque Converter Totransmission Mounting12
01***30Bolt,(For Center Guard)16
01***13Nut2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Power Train And Final Drive : Final Drive Gear (For Strengthened Track)
01***35Bolt - Torque Converter Totransmission Mounting12
01***30Bolt,(For Center Guard)16
01***13Nut2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Power Train And Final Drive : Final Drive Housing
01***70Bolt,(With Wear Guard)8
01***20Bolt,(For Quick Shift) (Mitsubishi)20
01***30Bolt-Hex, Bolt,(With Center Guard)8
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Power Train And Final Drive : Final Drive Housing (For Strengthened Track)
01***70Bolt,(With Wear Guard)8
01***20Bolt,(For Quick Shift) (Mitsubishi)20
01***40Bolt,R.H. Outside And L.H. Inside, Bolt12
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Power Train And Final Drive : Sprocket And Shaft
01***35Bolt,(For Quick Shift) (Mitsubishi)16
01***40Bolt,R.H. Outside And L.H. Inside, Bolt8
01***70Bolt,Rear Carrier (With Gumpad)24
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Power Train And Final Drive : Sprocket And Shaft (For Strengthened Track)
01***30Bolt,(Not Used With Emergency Str.)16
01***45Bolt (Op)8
01***65Bolt, Mount Cam8
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Power Train And Final Drive : Steering Case Cover
01***20Bolt,(For Quick Shift) (Mitsubishi)6
01***25Bolt,(For Canvas Canopy?Head Guard)6
01***30Bolt,(Not Used With Emergency Str.)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Power Train And Final Drive : Steering Clutch
01***12Screw2
01***10Nut (K10)2
06***17Bearing2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Power Train And Final Drive : Steering Clutch (For Strengthened Track)
01***12Screw2
01***10Nut (K10)2
06***17Bearing2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Power Train And Final Drive : Steering Oil Filter
01***30Bolt,(For Quick Shift) (Mitsubishi)4
01***30Washer, Spring (Supplied W/Spider Assembly), Washer-Spring4
07***08O-Ring,Valve Body1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Power Train And Final Drive : Steering Piping
01***30Bolt,(For France Noise Suppression)2
01***65Bolt,(For Suction Fan)(4d130-1d)2
01***20Bolt,(For Quick Shift) (Mitsubishi)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Power Train And Final Drive : Steering Valve (1/2)
01***35Bolt,(Without Auto Priming System)2
01***30Bolt,(Not Used With Emergency Str.)1
01***35Bolt, Bolt, Mount Tubes To Switch And Work Pumps4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Power Train And Final Drive : Steering Valve (2/2)
01***18Bolt5
01***06Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-108062
01***25Washer,Spring?For Additional Rear Lam5
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Power Train And Final Drive : Torque Converter (Housing) (1/2)
01***20Bolt,(For Quick Shift) (Mitsubishi)6
01***25Bolt,(For Canvas Canopy?Head Guard)14
01***30Bolt,(For Quick Shift) (Mitsubishi)10
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Power Train And Final Drive : Torque Converter (Turbine? Stator And Valve) (2/2)
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Power Train And Final Drive : Transmission (1st Clutch) (6/10)
01***30Bolt,(Not Used With Emergency Str.)8
01***35Bolt, Bolt, Mount Tubes To Switch And Work Pumps10
01***36Wahser-Spring, Washer,Spring (Without Towing Winch)18
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Power Train And Final Drive : Transmission (2nd And 3rd Clutch) (5/10)
01***80Bolt, Mount Tubes To Switch And Work Pumps3
01***36Wahser-Spring, Washer,Spring (Without Towing Winch)3
04***28Pin, Dowel - Transmission Case, Pin-Dowel4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Power Train And Final Drive : Transmission (Case Cover And Lever) (7/10)
01***18Bolt2
01***30Bolt,(For Mechanical Governor)1
01***25Bolt,(For Canvas Canopy?Head Guard)10
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Power Train And Final Drive : Transmission (Case) (2/10)
01***25Bolt,(For Canvas Canopy?Head Guard)3
01***35Bolt, Bolt, Mount Tubes To Switch And Work Pumps11
01***30Washer, Spring (Supplied W/Spider Assembly), Washer-Spring3
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Power Train And Final Drive : Transmission (Control Valve 1/2) (8/10)
01***20Bolt,(With Auto Emergency Steering)4
01***30Bolt,(For Mechanical Governor)2
01***06Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-108062
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Power Train And Final Drive : Transmission (Control Valve 2/2) (9/10)
01***20Bolt,(With Auto Emergency Steering)2
01***55Bolt, Mount Tube To Switch Pump4
01***10Bolt, Fan Mounting4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Power Train And Final Drive : Transmission (Forward And Reverse Clutch) (4/10)
01***20Bolt,(Large Capacity Type) (Std)3
01***30Washer,Spring(Sandy?Dusty Terrain S.)3
04***14Pin, Dowel1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Power Train And Final Drive : Transmission (Lubrication Valve) (10/10)
01***20Bolt,(With Auto Emergency Steering)2
01***55Bolt, Mount Tube To Switch Pump4
01***25Washer,Spring?For Additional Rear Lam2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Power Train And Final Drive : Transmission (Mounting) (1/10)
01***30Bolt,(For Quick Shift) (Mitsubishi)6
01***40Bolt,R.H. Outside And L.H. Inside, Bolt4
01***45Bolt,(For Travel Motor) (Not Show)8
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Power Train And Final Drive : Transmission (Rear Cover) (3/10)
01***45Bolt,(For Power Tilt Mech Angle)6
01***65Bolt,(With Canvas Or Rops Canopy)9
01***30Washer, Spring (Supplied W/Spider Assembly), Washer-Spring6
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Power Train And Final Drive : Transmission Oil Filter
01***30Bolt,(Not Used With Emergency Str.)4
01***35Bolt, Bolt, Mount Tubes To Switch And Work Pumps1
01***45Bolt, Mounting Bracket To Radiator (Top)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Power Train And Final Drive : Transmission Oil Piping
01***50Bolt2
01***20Bolt,(For Quick Shift) (Mitsubishi)3
01***30Bolt,(For Quick Shift) (Mitsubishi)12
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Power Train And Final Drive : Universal Joint
01***29Washer,Spring (Cold Weather Spec.)4
01***30Washer, Spring (Supplied W/Spider Assembly), Washer-Spring8
02***14Bolt4
See all parts with full part numbers in Heavy Parts AI →
S6d108-1b S/N 11731-Up
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Air Cleaner And Mounting
01***35Bolt,(Not Shown)1
01***20Bolt, Hose Clamps (Inlet And Return Line Hoses)6
01***30Bolt - Lower Oil Cooler Outlet Tubemounting2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Air Intake Manifold And Connection
01***14Bolt - Plate Mounting2
01***65Bolt,(For Alternator Bracket Mount)6
01***08Bolt2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Alternator (13a) (With Hardening Pulley) (Sandy And Dusty Spec.)
60***71Alternator A. (13a),(With Hardening Pulley)1
KD***31Bushing,Insulator2
KD***80Packing1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Alternator (13a) (With Non Hardening Pulley)
60***80Alternator A. (13a),(With Non Hardening Pulley)1
KD***31Bushing,Insulator2
KD***80Packing1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Alternator And Mounting (13a)
01***25Bolt1
01***90Bolt,(For Large Fan)1
01***10Nut,(Dust?Drip Proof? Trimming S.)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Camshaft And Tappet
01***20Bolt,(Forwarded Individually Parts)2
04***16Fitting Wedge1
62***31Thrust Washer1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Cooling Fan And Tension Pulley
01***20Bolt, Hose Clamps (Inlet And Return Line Hoses)1
01***30Bolt - Lower Oil Cooler Outlet Tubemounting16
01***35Bolt, Mount Bracket To Floor2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Corrosion Resistor And Piping
01***20Bolt, Hose Clamps (Inlet And Return Line Hoses)2
01***16Washer,Radio Controlled Slag Handling4
01***12Washer,(With Body Positioner)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Crankshaft
01***45Bolt,Nylock1
01***20Bolt, Hose Clamps (Inlet And Return Line Hoses)6
61***40Fitting Wedge1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Cylinder Block
01***20Bolt, Hose Clamps (Inlet And Return Line Hoses)4
01***30Bolt - Lower Oil Cooler Outlet Tubemounting1
01***30Bolt, Mounting - Front Hand Rails8
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Cylinder Head
01***20Bolt, Hose Clamps (Inlet And Return Line Hoses)2
07***08Plug,(Without Lock-Up), Plug7
07***10Plug, Expansion8
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Cylinder Head Cover
01***12Bolt2
01***16Bolt - Starting Motor Ground Cable2
01***11Nut,(With Under Mirror)2
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Exhaust Manifold And Turbocharger (Except Japan)
01***25Grub Screw4
01***60Bolt - Upper Cooler Inlet Tubemounting2
01***80Bolt (M10-1.50x80)10
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Flywheel And Flywheel Housing
01***40Bolt,R.H. Outside And L.H. Inside, Bolt8
01***50Bolt8
01***45Bolt,(Noise Abatement Part)9
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Front Cover And Gear
01***80Bolt, Cushion Mounting1
01***20Bolt,(Forwarded Individually Parts)4
01***55Screw8
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Fuel Filter And Piping
01***30Screw2
07***12Gasket,Mechanical Pump Piping1
07***12Gasket,(Without Air Compressor Type) (K1)4
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Fuel Injection Pump (Feed Pump)(#12560-)
DK***20Bolt, Joint1
DK***00Valve,Check2
DK***20Pump,Priming1
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Fuel Injection Pump (Governor) (1/2)(#12560-)
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Fuel Injection Pump (Governor) (2/2)(#12560-)
DK***40Gasket,Air Compressor2
DK***00Nut,Cap1
DK***40Bolt2
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Fuel Injection Pump (Pump) (1/2)(#12560-)
62***11Injection Pump Ass'Y1
DK***30Key,Woodruff1
DK***00Camshaft1
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Fuel Injection Pump (Pump) (2/2)(#12560-)
DK***00Seat,Spring6
DK***40Shim? 0.50mm, Shim, 0.50mm; Was Dk029311-00400
DK***00Seat,Spring6
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Fuel Injection Pump And Piping
01***22Screw4
01***35Stud4
01***20Bolt, Hose Clamps (Inlet And Return Line Hoses)2
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Fuel Nozzle And Spill Pipe
01***40Bolt,(Shim 3-Piece)6
07***50Tube,(See Fig.0421-19)1
07***85Clip1
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Gasket Kit
07***18O-Ring,(See Fig.1601-29?1602-17)1
07***22O-Ring,(See Fig.Y1852-01a0)1
07***28O-Ring, Strainer To Control Pump Line1
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Lubricating Oil Cooler
01***20Screw4
01***25Bolt,(With Corrosion Resistor)4
01***30Bolt,(Water Separator Spec.)16
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Lubricating Oil Filter And Mounting
01***85Screw1
01***85Bolt,(For Reversible Fan)1
01***00Bolt (M10-1.50x100)1
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Lubricating Oil Pump And Suction Pipe
01***20Screw1
01***20Bolt,(Forwarded Individually Parts)6
01***20Screw2
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Muffler And Mounting
01***16Bolt - Starting Motor Ground Cable1
01***20Bolt, Hose Clamps (Inlet And Return Line Hoses)8
01***25Bolt, Mount Engine Oil Drain To Fuel Tank8
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Oil Pan
01***16Bolt,(For Slag Handling)38
07***22O-Ring,(See Fig.Y1852-01a0)1
61***90Plug,Drain1
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Piston And Connecting Rod
02***13Pin,Dowel2
04***18Ring,Snap (Itl)12
62***10Piston6
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Rocker Arm
01***75Screw8
61***30Circlip2
62***10Rocker Socket5
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Starting Motor (7.5kw)(#11731-12266)
SD***X0Screw1
SD***X0Bracket,Rear1
SD***X9Switch Ass'Y,Engage1
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Starting Motor (7.5kw)(#12267-)
60***21Starting Motor A.,(7.5kw)1
SD***X0Screw1
SD***X0Lever1
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Starting Motor And Mounting (7.5kw)
01***40Bolt,(With Center Guard)3
66***10Gasket,Starting Motor1
(6***1)Starting Motor A.,(7.5kw) (See Fig.0661a)1
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Turbocharger (Except Japan)
62***30Turbocharger Ass'Y,(Td4e08)1
GA***01Bolt6
GA***03Bolt6
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Turbocharger Lubricating Oil Piping
01***30Bolt,(Water Separator Spec.)2
01***20Bolt,(For Japan Pc200)2
07***13Connector1
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Water Pump And Mounting
01***20Screw2
01***35Bolt, Cover1
01***45Bolt, Bracket Mounting1
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : S6d108-1b S/N 11731-Up : Water Separator And Piping
01***25Bolt - Relay Mounting1
07***60O-Ring,(For Pc750?800?1800) (A2610)1
07***12Gasket,(Without Air Compressor Type) (K1)4
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Service Kit And Component Parts
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Service Kit And Component Parts : Dump Cylinder
01***35Bolt,(For Position Fixing)4
01***50Bolt (Kit)4
01***25Bolt,(Without Rops Guard? Canopy)2
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Service Kit And Component Parts : Hydraulic Tank And Control Valve (1/4)
01***40Capscrew5
01***50Bolt,(Not Used When With Cab)2
01***65Hexagon Bolt1
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Service Kit And Component Parts : Hydraulic Tank And Control Valve (1/5) (For Hydraulic Ripper)
01***16Bolt,(Sandy And Dusty Spec.)2
01***45Bolt,(Cold Terrain Spec.)4
01***40Capscrew5
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Service Kit And Component Parts : Hydraulic Tank And Control Valve (1/6) (For Multi-Purpose Bucket)
01***40Bolt,(Not Used With Cab)2
01***40Capscrew4
01***50Bolt,(Not Used When With Cab)2
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Service Kit And Component Parts : Hydraulic Tank And Control Valve (2/4)
01***45Hexagon Bolt4
01***30Bolt - M8 X 30lg2
01***30Bolt,(With Body Positioner)2
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Service Kit And Component Parts : Hydraulic Tank And Control Valve (2/5) (For Hydraulic Ripper)
01***45Hexagon Bolt4
01***25Bolt,(Rear Attachment Less)1
01***30Bolt - M8 X 30lg2
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Service Kit And Component Parts : Hydraulic Tank And Control Valve (2/6) (For Multi-Purpose Bucket)
01***25Bolt,(Rear Attachment Less)1
01***30Bolt - M8 X 30lg3
01***35Bolt,(F4320-52a0 -5 )1
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Service Kit And Component Parts : Hydraulic Tank And Control Valve (3/4)
01***30Bolt,(With Body Positioner)2
01***95Capscrew2
01***20Bolt,(Without Rops Guard? Canopy)1
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Service Kit And Component Parts : Hydraulic Tank And Control Valve (3/5) (For Hydraulic Ripper)
01***30Bolt,(With Body Positioner)4
01***95Capscrew2
01***20Bolt,(Without Rops Guard? Canopy)1
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Service Kit And Component Parts : Hydraulic Tank And Control Valve (3/6) (For Multi-Purpose Bucket)
01***40Capscrew2
01***30Bolt,(With Body Positioner)2
01***95Capscrew2
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Service Kit And Component Parts : Hydraulic Tank And Control Valve (4/4)
01***40Bolt,For Weight Adjusting Bolt3
01***50Bolt,For Weight Adjusting Bolt3
01***60Bolt,For Weight Adjusting Bolt2
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Service Kit And Component Parts : Hydraulic Tank And Control Valve (4/5) (For Hydraulic Ripper)
01***40Bolt,For Weight Adjusting Bolt3
01***50Bolt,For Weight Adjusting Bolt3
01***60Bolt,For Weight Adjusting Bolt2
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Service Kit And Component Parts : Hydraulic Tank And Control Valve (4/6) (For Multi-Purpose Bucket)
01***40Bolt,For Weight Adjusting Bolt3
01***50Bolt,For Weight Adjusting Bolt3
01***60Bolt,For Weight Adjusting Bolt2
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Service Kit And Component Parts : Hydraulic Tank And Control Valve (5/5) (For Hydraulic Ripper)
01***40Capscrew2
01***30Bolt,(With Body Positioner)2
01***35Bolt, Mount Ground Driven Steering Pump2
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Service Kit And Component Parts : Hydraulic Tank And Control Valve (5/6) (For Multi-Purpose Bucket)
01***40Capscrew2
01***20Bolt, Wiring Harness Mounting Bracket2
01***30Bolt,(With Body Positioner)2
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Service Kit And Component Parts : Hydraulic Tank And Control Valve (6/6) (For Multi-Purpose Bucket)
01***45Bolt, Mounting Cranking Motor2
01***10Bolt,For Weight Adjusting Bolt2
01***36Washer,Radio Controlled Slag Handling4
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Service Kit And Component Parts : Lift Cylinder
01***35Bolt,(For Position Fixing)2
01***50Bolt (Kit)2
01***50Bolt,(With Service Valve R.H.)2
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Service Kit And Component Parts : Periodical Replachment And Safety Parts
07***25O-Ring,(See Fig.6521-31)18
07***32O-Ring,(Tree Pusher Dozer)8
07***03Hose,(See Fig.4611-12)1
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Service Kit And Component Parts : Ripper Cylinder
01***35Bolt,(For Position Fixing)2
01***50Bolt (Kit)2
01***45Bolt, Mount Center Hinge Retainer (Upper)2
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Service Kit And Component Parts : Service Kit(#20001-20138)
01***08Washer,Plate Bolt1
04***45Pin,Cotter? Valve1
04***25Pin,Cotter? Shaft4
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Service Kit And Component Parts : Service Kit(#20139-)
01***08Washer,Plate Bolt1
04***45Pin,Cotter? Valve1
04***25Pin,Cotter? Shaft4
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Service Kit And Component Parts : Steering Pump (Except Japan)
01***08Nut,R.H. Thread8
01***30Washer, Spring (Supplied W/Spider Assembly), Washer-Spring8
04***20Pin,Dowel (Welded)4
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Service Kit And Component Parts : Transmission Pump (Except Japan)
07***60Seal (Kit)1
07***03Pump Ass'Y,(Far040)1
(****1)Case,Gear1
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Service Kit And Component Parts : Work Equipment Pump (Except Japan)
01***45Bolt, Mounting Bracket To Radiator (Top)16
01***32Washer, (Without Emergency Steering)16
04***24Pin,Dowel (For No.3 Housing)2
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Under Carriage
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Under Carriage : Carrier Roller
01***20Bolt,(For Quick Shift) (Mitsubishi)2
01***25Bolt,(For Canvas Canopy?Head Guard)3
01***45Bolt,(For Travel Motor) (Not Show)8
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Under Carriage : Carrier Roller (For Strengthened Track)
01***25Bolt,(For Canvas Canopy?Head Guard)3
01***45Bolt,(For Travel Motor) (Not Show)8
01***85Bolt4
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Under Carriage : Front Idler
01***25Bolt,(Sandy? Dusty Terrain Spec.)12
01***45Bolt,(For Travel Motor) (Not Show)8
01***60Bolt,(For Ripper)8
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Under Carriage : Front Idler (For Strengthened Track)
01***30Bolt,(For France Noise Suppression)12
01***55Bolt,(For Reinforced Type)8
01***13Nut,(See Fig.337)2
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Under Carriage : Recoil Spring
01***16Bolt, Battery To Frame Ground Wire Attaching2
01***20Bolt,(For Quick Shift) (Mitsubishi)6
01***30Bolt,(Not Used With Emergency Str.)8
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Under Carriage : Recoil Spring (For Strengthened Track)
01***16Bolt, Battery To Frame Ground Wire Attaching2
01***25Bolt,(Without Rops Guard? Canopy)16
01***35Bolt, Bolt, Mount Tubes To Switch And Work Pumps12
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Under Carriage : Track Frame
01***30Bolt-Hex, Bolt,(With Center Guard)20
01***50Bolt,(Shim Thickness?Less Than 8mm)4
01***55Bolt,(Tree Pusher Dozer)2
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Under Carriage : Track Frame (For Strengthened Track)
01***30Bolt-Hex, Bolt,(With Center Guard)26
01***35Bolt,R.H. Outside And L.H. Inside4
01***65Bolt2
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Under Carriage : Track Roller (For Strengthened Track)
01***30Bolt,(For Quick Shift) (Mitsubishi)12
01***65Bolt (D65p)48
01***30Washer, Spring (Supplied W/Spider Assembly), Washer-Spring12
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Under Carriage : Track Roller Guard
01***30Bolt-Hex, Bolt,(With Center Guard)12
01***40Bolt,(With Center Guard)22
01***45Bolt,(For Travel Motor) (Not Show)8
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Under Carriage : Track Roller(#20001-20204)
01***25Bolt,(Sandy? Dusty Terrain Spec.)12
01***55Bolt,(For Reinforced Type)32
01***30Washer, Spring (Supplied W/Spider Assembly), Washer-Spring12
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Under Carriage : Track Roller(#20205-)
01***65Capscrew - M16 X 2.00 X 9048
01***45Washer,(For Travel Motor) (Not Show)48
07***55O-Ring,Front Accessory Drive2
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Under Carriage : Track Shoe (Lubircate Type) (Triple Grouser)
07***30Plug,(Large)78
07***21Plug,(Small)78
13***50Pin78
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Under Carriage : Track Shoe (Lubricate Type) (Semi-Double Grouser)(#20001-20135)
07***30Plug,(Large)78
07***21Plug,(Small)78
13***50Pin78
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Under Carriage : Track Shoe (Master Pin Type) (Flat Type)(#20001-20135)
13***32Track Link Ass'Y1
13***04Track Shoe Ass'Y1
13***23Link,Track? L.H78
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Under Carriage : Track Shoe (Master Pin Type) (On Rock-Bed)
13***32Track Link Ass'Y1
13***04Track Shoe Ass'Y1
13***23Link,Track? L.H78
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Under Carriage : Track Shoe (Master Pin Type) (Semi-Double Grouser)(#20001-20135)
13***32Track Link Ass'Y1
13***04Track Shoe Ass'Y1
13***04Track Shoe Ass'Y1
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Under Carriage : Track Shoe (Master Pin Type) (Single Grouser? 400mm Wide)(#20136-)
13***32Track Link Ass'Y1
13***20Track Shoe Ass'Y1
13***10Shoe,Track78
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Under Carriage : Track Shoe (Master Pin Type) (Snow Type)(#20001-20135)
13***32Track Link Ass'Y1
13***04Track Shoe Ass'Y1
13***23Link,Track? L.H78
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Under Carriage : Track Shoe (Master Pin Type) (Triple Grouser)
13***32Track Link Ass'Y1
13***04Track Shoe Ass'Y1
13***14Track Shoe Ass'Y1
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Work Equipment
Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Work Equipment : Bucket Cylinder (For Multi-Purpose Bucket)
01***40Bolt,(Dust And Dirt Protection)2
01***60Bolt4
01***36Washer,Radio Controlled Slag Handling2
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Work Equipment : Bucket? 1.8m3 (Except Japan)
01***15Nut4
04***60Screw,Machine Model (For Ec Reg.)4
07***00Fitting, Grease - Upper Hinge Pin4
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Work Equipment : Counter Weight 250kg (With Rops Cab And Rops Canopy)
01***55Bolt,(For L=529mm Pin)4
01***60Bolt (Itl)1
01***50Stud4
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Work Equipment : Hitch
01***85Bolt4
01***60Bolt (Itl)1
01***15Nut,(For Quick Shift) (Mitsubishi)1
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Work Equipment : Hitch (Tbg Spec.)
01***90Bolt,(Without Cap)4
01***60Bolt (Itl)1
01***15Nut,(For Quick Shift) (Mitsubishi)1
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Work Equipment : Hitch And Counter Weight 500kg (For 1.8m3 Bucket) (For Multi-Purpose Bucket)
01***60Bolt (Itl)1
01***19Nut - M248
01***15Nut,(For Quick Shift) (Mitsubishi)1
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Work Equipment : Hydraulic Piping (1/2) (For Multi-Purpose Bucket)
01***45Screw8
01***60Bolt,(For Japan And Sweden)8
01***20Bolt,(For Quick Shift) (Mitsubishi)2
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Work Equipment : Hydraulic Piping (2/2) (For Multi-Purpose Bucket)
01***45Screw8
01***55Bolt,(10m)8
01***80Bolt,(For Long Lever Control)8
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Work Equipment : Lift Arm
01***25Bolt - Rear Guard Mounting4
01***30Bolt,(Not Used With Emergency Str.)4
01***35Bolt,R.H. Outside And L.H. Inside4
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Work Equipment : Multi-Purpose Bucket
01***20Bolt,(For Quick Shift) (Mitsubishi)6
01***25Bolt,(Without Rops Guard? Canopy)4
01***15Nut8
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Komatsu : D57s-1b(S/N 20001-Up (S6d108-1 Eng. Installed)) : Work Equipment : Ripper Frame
01***55Bolt,(Without Rops Guard? Canopy)16
01***75Bolt (Kit)16
01***60Washer,(Without Rops Guard? Canopy)32
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D57S-1B(S/N 20001-UP (S6D108-1 Eng. Installed)) 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 prefix as the first five digits of the serial number stamped on the plate.

PrefixIdentifies
20001D57S-1B

Frequently asked questions

What engine does the D57S-1B (S/N 20001-UP) use?

The D57S-1B (S/N 20001-UP) is equipped with the Komatsu S6D108-1 diesel engine.

What is the operating weight of the D57S-1B?

Operating weight varies by configuration and attachment package. Consult the specific serial range spec sheet for exact weight.

What model replaced the D57S-1B?

The D575A series succeeded the D57S-1B in Komatsu's large bulldozer lineup.

What D57S-1B(S/N 20001-UP (S6D108-1 Eng. Installed)) owners discuss

What engine is installed in the Komatsu D57S-1B (S/N 20001-UP)?
The D57S-1B (S/N 20001-UP) is equipped with the S6D108-1B engine. This is distinct from the earlier D57S-1 series (S/N 6501-UP), which uses the S6D105 engine. The S6D108-1B is a turbocharged diesel engine specific to this later production block of the D57S-1B model.
What are the known powertrain and hydraulic behaviors for this machine?
The D57S-1B utilizes a hydrostatic transmission system. Community consensus notes that the hydraulic system is generally smooth and fuel-efficient. However, a common failure pattern involves the main hydraulic pump and engine wearing out simultaneously. If hydraulic performance drops significantly when hot but works normally when cold, internal leakage in the pump, main control valve, or cylinders is likely. The transmission is described as robust, but the entire powertrain is designed to fail as a unit rather than in isolated components.
What undercarriage and wear patterns are typical for the D57S-1B?
The D57S-1B features a pivoting track frame, which differs from the solid hard-bar frame found on some competitors. Common wear items include track chain bushings, bearings, and track pads. Worn bushings often lead to increased noise and vibration. The track frame pivot bolt should be checked regularly; if loose, it can be tightened, but it primarily serves to locate the E-beam and is not a primary structural worry item unless severely compromised.
Are there specific engine quirks for the S6D108-1B series?
The S6D108-1B engine is robust but sensitive to fuel quality and service intervals. Contamination, extended service intervals, and low-quality fuel accelerate injector and fuel delivery wear. Owners should monitor for black smoke from the exhaust, which indicates incomplete combustion or injector issues. The engine cooling system is critical; overheating during heavy work often points to debris packed between the radiator, hydraulic oil cooler, and charge-air cooler rather than a complete loss of cooling capacity.
What are common electrical or sensor issues?
Komatsu machines of this era rely on electronic control systems where a single faulty sensor or unstable power supply can trigger multiple warning signals. Owners report intermittent starting, dashboard failures, and random shutdowns. These symptoms often stem from poor battery state of charge, corroded engine/chassis grounds, or loose main starter cables rather than complex electronic failures. A voltage drop test under load is recommended before replacing starters.
What should be checked when buying a used D57S-1B (S/N 20001-UP)?
Verify the engine model plate to confirm it is the S6D108-1B and not the earlier S6D105. Check the steering pedal operation; a common issue is pedals going to the floor with no resistance or intermittent turning. Inspect the oil cooler steel line fitting for leaks, as O-rings and washers in this area are prone to failure. Test the hydraulic system cold and hot to identify internal leakage. Check the injector pump mounting bolts for looseness and ensure the glow plugs are functioning correctly for cold starts.
What is a safety-critical fix for the steering system?
If the steering pedals go to the floor with no resistance, the hydraulic steering circuit is compromised. This can lead to a complete loss of directional control. Have your dealer verify the steering pump pressure and the integrity of the hydraulic lines and fittings before operating the machine in any capacity.

Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.

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