Komatsu D45S-1(S/N 1501-UP)
Komatsubulldozermedium (d40 - d75)

Komatsu D45S-1(S/N 1501-UP)

Maintenance schedule, common problems & OEM parts breakdown

The Komatsu D45S-1 is a heavy crawler bulldozer designed for mass earthmoving and production work. It is part of the D45 series, which includes the D45A-1 and D45P-1 variants, with the S/N 1501-UP range specifically identifying the D45S-1 configuration. The machine is engineered for high durability in demanding environments, featuring a robust powertrain and undercarriage. Configurations offered typically include standard dozer setups with varying blade and ripper options to suit specific job site requirements. The D45S-1 succeeded earlier D45 models and was eventually replaced by newer generations in Komatsu's lineup, maintaining a legacy of reliable heavy-duty performance.

Across the D45 series generations, Komatsu refined engine efficiency, hydraulic responsiveness, and operator comfort while maintaining the core structural integrity required for heavy ripping and pushing. The D45S-1 remains significant in the used and parts market due to its widespread deployment in mining and large-scale construction projects. Its modular design allows for extensive parts availability, making it a cost-effective option for fleet managers seeking reliable heavy dozers. The machine's longevity is supported by a strong network of service manuals and component interchangeability within the D45 family, ensuring continued support long after production ceased.

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 D45S-1(S/N 1501-UP) specifications

Engine

Engine ModelS4D105-1
Number of Cylinders4
Displacement242.9 cu in (3,980 cm³)
Gross Power90 hp (67 kW)
Power Measured At2400 rpm

Weights

Operating Weight9,550 kg (21,054.2 lb)

Dimensions

Transport Length4.91 m (16.1 ft)
Transport Width1.95 m (6.4 ft)
Transport Height2.75 m (9.0 ft)
Length w/ Blade13.95 ft (4.25 m)
Length w/o Blade10.8 ft (3.3 m)
Width Over Tracks6.37 ft (1.94 m)
Height to Top of Cab8.6 ft (2.62 m)
Length of Track on Ground6.76 ft (2.06 m)
Ground Clearance1.19 ft (0.36 m)
Track Gauge5.06 ft (1.54 m)
Track Width400 mm (15.75 in)
Number of Shoes Per Side37
Number of Carrier Rollers Per Side1
Number of Track Rollers Per Side5
Track Pitch6.89 in (175 mm)

Performance

Travel Speed - Forward5.6 mph (9.0 km/h)
Travel Speed - Reverse6.8 mph (10.9 km/h)
Ground Pressure7.17 psi (49.4 kPa)
Soil Pressure0.66 kg/cm² (64.7 kPa)
Transmission TypeTF
Number of Forward Gears3
Number of Reverse Gears3

Blades

Standard Blade Width10.4 ft (3.17 m)
Standard Blade Height29.6 in (0.75 m)
Standard Blade Cutting Depth15 in (0.38 m)

Service Capacities

Fuel Capacity55.5 gal (210 L)
Cooling System Fluid Capacity11.4 gal (43 L)

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

Komatsu D45S-1(S/N 1501-UP) maintenance schedule

Service intervalTasks
Every 10 h
  • Check engine oil level and condition.
  • Check hydraulic fluid level in the sight glass.
  • Check coolant level and ensure the cap is secure.
  • Check fuel level and drain water from the fuel separator.
  • Check DEF level on Tier 4 machines.
  • Inspect air filter restriction indicator.
  • Check 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 the machine.
  • Verify ROPS/FOPS integrity and seat belt function.
  • Test horn, backup alarm, and lights.
  • Ensure emergency shutoff is accessible.
  • Start engine and verify gauges and KOMTRAX display are normal.
  • 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 inspection.
Every 500 h
  • Replace fuel filter and drain water separator.
  • Replace hydraulic return filter.
  • Perform battery service and load test.
  • Test coolant SCA concentration.
  • Collect KOWA oil sample.
  • Perform detailed undercarriage visual inspection.
Every 1,000 h
  • Collect hydraulic oil sample.
  • Check final drive oil level.
  • Inspect turbocharger.
  • Perform wear measurements on key components.
  • Check valve adjustment.
  • Perform structural inspection of the chassis.
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 D45S-1(S/N 1501-UP) beyond the schedule

Predictive Maintenance & Fluid Analysis

Utilize KOWA fluid analysis at every 500-hour interval to monitor engine wear metals, hydraulic contamination, and coolant condition. Track ISO cleanliness levels in the hydraulic system to prevent pump and valve damage. Monitor transmission and final drive oil for viscosity changes and metal content. Use KOMTRAX telematics to track load frequency and fault codes, allowing for proactive scheduling of fluid changes before critical thresholds are reached. Regular SCA testing of the coolant ensures proper inhibitor levels to protect the engine block and radiator from corrosion and cavitation.

Corrective & Common Repairs

Address common D45S-1 issues by inspecting the turbocharger for boost leaks and carbon buildup at 1,000-hour intervals. Check the air filter restriction indicator frequently and replace the outer element as needed to prevent engine ingestion of contaminants. Inspect the hydraulic return filter for clogging, which can cause overheating. Verify the condition of the fuel filter and water separator to protect the injection system. Tighten ROPS bolts and cutting edge bolts to specification to prevent structural fatigue and blade detachment during heavy pushing operations.

Overhaul & Rebuild Points

Plan for major component overhauls based on wear measurements taken at 1,000-hour intervals. Inspect the final drive gears and bearings for pitting or excessive backlash. Evaluate the undercarriage components, including track chains, sprockets, and rollers, for elongation and wear. The transmission and torque converter should be serviced comprehensively at 2,000-hour intervals. Monitor engine compression and valve clearances to determine the optimal time for an engine rebuild. Structural welds on the chassis and blade mounts should be inspected for cracks during major service intervals.

Seasonal & Environment Servicing

In cold climates, ensure the coolant mixture is appropriate for the lowest expected temperatures to prevent block cracking. Check the battery hold-down and terminals for corrosion, which is exacerbated by temperature fluctuations. In dusty environments, inspect the air cleaner pre-cleaner and outer element more frequently than standard intervals. Clear debris from the radiator and oil cooler fins daily to prevent overheating in high-temperature operations. Verify the condition of all seals and hoses, as UV exposure and heat can accelerate degradation of rubber components.

D45S-1(S/N 1501-UP) common service parts

Part numberPart
07281-00197Clamp,(With Pre-Fuel Filter)Check fitment →
07000-02075O-Ring,Steering Oil FilterCheck fitment →
600-181-8210Element,OuterCheck fitment →
600-181-8310Element,InnerCheck fitment →
6131-81-7030Element Ass'YCheck fitment →

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

D45S-1(S/N 1501-UP) attachments & work tools

Blades

The D45S-1(S/N 1501-UP) supports S, SU, and A blade types, 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 and single-shank ripper options are available for this class, with weights varying by configuration and series. Specific weight data for the D45S-1(S/N 1501-UP) is not documented in the provided sources.

Winches

Towing winch options are available for the D45S-1(S/N 1501-UP), with the specific class fitting varying by configuration and series. Detailed winch specifications are not documented for this exact serial range in the provided sources.

Drawbars/Counterweights

Drawbars and counterweights are available for the D45S-1(S/N 1501-UP), with specific configurations varying by configuration and series. Detailed specifications are not documented for this exact serial range in the provided sources.

Cab/ROPS Guarding

Forestry and waste configuration guarding options are available for the D45S-1(S/N 1501-UP), with specific setups varying by configuration and series. Detailed guarding specifications are not documented for this exact serial range in the provided sources.

Hydraulic Arrangement

Front and rear tool hydraulic arrangements for the D45S-1(S/N 1501-UP) are detailed in the factory spec sheet and operation and maintenance manual. Specific flow rates and pressures are not documented for this exact serial range in the provided sources.

All D45S-1(S/N 1501-UP) assemblies by section

Every catalogued assembly group for the Komatsu D45S-1(S/N 1501-UP). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

Engine Related Parts And Electrical System
Komatsu : D45s-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Battery
01***16Bolt,(For Slag Handling)2
01***30Bolt,(Cold Terrain Spec.)1
01***18Bolt1
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Komatsu : D45s-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Compression Release Lever(#1501-1800)
01***30Bolt,(Cold Terrain Spec.)1
01***25Bolt,(Sandy? Dusty Terrain Spec.)3
01***25Washer,Spring?(Sandy And Dusty Spec.)1
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Komatsu : D45s-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Electrical System
01***16Bolt (Welded)4
01***16Bolt,(For Slag Handling)4
01***16Bolt,(Sandy And Dusty Spec.)9
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Komatsu : D45s-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Electrical System(#1501-1800)
01***16Bolt,(For Slag Handling)3
01***16Bolt,(Sandy And Dusty Spec.)17
01***20Bolt,(Used When Towing Winch)1
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Komatsu : D45s-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Engine Mounting Parts(#1501-1800)
01***40Bolt,(Not Used With Cab)4
01***05Bolt4
01***42Washer,Spring (For Pedal Steering)8
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Komatsu : D45s-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Engine Mounting Parts(#1801-)
01***50Bolt2
01***20Bolt,Front (Except Japan)2
01***25Bolt2
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Komatsu : D45s-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Fuel Control Lever(#1501-1800)
01***30Bolt,(Cold Terrain Spec.)1
01***16Bolt,(Sandy And Dusty Spec.)1
01***22Bolt2
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Komatsu : D45s-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Fuel Control Lever(#1801-)
01***30Bolt,(Cold Terrain Spec.)1
01***16Bolt,(Sandy And Dusty Spec.)1
01***22Bolt2
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Komatsu : D45s-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Fuel Tank (With Fuel Strainer) (Except Japan)(#1801-)
01***16Bolt,(Sandy And Dusty Spec.)2
01***25Bolt,(For Slag Handling)6
01***16Bolt, Battery To Frame Ground Wire Attaching2
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Komatsu : D45s-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Fuel Tank(#1501-1800)
01***16Bolt,(Sandy And Dusty Spec.)4
01***25Bolt,(Sandy? Dusty Terrain Spec.)6
01***25Bolt,(For Slag Handling)6
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Komatsu : D45s-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Fuel Tank(#1801-)
01***16Bolt,(Sandy And Dusty Spec.)2
01***25Bolt,(For Slag Handling)6
01***30Washer,Spring(Sandy?Dusty Terrain S.)2
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Komatsu : D45s-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Instrument Panel(#1501-1800)
01***10Bolt,(With Auto Emergency Steering)4
01***20Bolt,(Without Maintenance Monitor)2
01***20Screw2
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Komatsu : D45s-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Instrument Panel(#1801-)
01***10Bolt, Mount Flasher2
01***12Bolt,(Without R.P.C.U.)2
01***20Bolt,(Used When Towing Winch)2
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Komatsu : D45s-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Radiator Cover And Piping(#1501-1800)
01***20Bolt,(Large Capacity Type) (Std)10
01***25Bolt,(Sandy? Dusty Terrain Spec.)2
01***25Bolt - Rear Guard Mounting12
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Komatsu : D45s-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Radiator Cover And Piping(#1801-)
01***20Bolt,(Large Capacity Type) (Std)10
01***25Bolt,(Sandy? Dusty Terrain Spec.)1
01***25Bolt - Rear Guard Mounting12
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Komatsu : D45s-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Radiator(#1501-1800)
01***25Bolt,(Sandy? Dusty Terrain Spec.)44
01***40Bolt,(Dust And Dirt Protection)4
01***50Bolt - Torque Converter Totransmission Mounting12
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Komatsu : D45s-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Radiator(#1801-)
01***25Bolt,(Sandy? Dusty Terrain Spec.)44
01***40Bolt,(Dust And Dirt Protection)8
01***50Bolt - Torque Converter Totransmission Mounting12
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Guard
Komatsu : D45s-1(S/N 1501-Up) : Guard : Bottom Guard
01***25Bolt - Rear Guard Mounting6
01***35Bolt,(For Pedal Steering)12
01***36Washer,Radio Controlled Slag Handling6
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Komatsu : D45s-1(S/N 1501-Up) : Guard : Dashboard And Floor Plate(#1501-1800)
01***20Bolt,(Large Capacity Type) (Std)4
01***25Bolt - Rear Guard Mounting16
01***30Bolt,Radio Controlled Slag Handling20
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Komatsu : D45s-1(S/N 1501-Up) : Guard : Dashboard And Floor Plate(#1801-)
01***16Bolt,(Sandy And Dusty Spec.)2
01***20Bolt,(Large Capacity Type) (Std)8
01***20Bolt,(Used When Towing Winch)3
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Komatsu : D45s-1(S/N 1501-Up) : Guard : Engine Hood And Guard(#1501-1800)
01***25Bolt,(Sandy? Dusty Terrain Spec.)12
01***20Bolt,(Used When Towing Winch)8
01***25Bolt - Rear Guard Mounting16
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Komatsu : D45s-1(S/N 1501-Up) : Guard : Engine Hood And Guard(#1801-)
01***20Bolt,(Sandy? Dusty Terrain Spec.)3
01***25Bolt,(Without Auto Priming System)2
01***25Bolt,(Sandy? Dusty Terrain Spec.)4
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Komatsu : D45s-1(S/N 1501-Up) : Guard : Equalizer Bar(#1501-1800)
01***35Bolt2
01***42Washer,Spring (For Pedal Steering)2
04***50Pin,Cotter (Except D40pll)4
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Komatsu : D45s-1(S/N 1501-Up) : Guard : Equalizer Bar(#1801-)
01***35Bolt,(For Pedal Steering)2
01***35Bolt2
01***42Washer,Spring (For Pedal Steering)2
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Komatsu : D45s-1(S/N 1501-Up) : Guard : Fender And Rear Cover
01***25Bolt - Rear Guard Mounting17
01***30Bolt,Radio Controlled Slag Handling9
01***60Bolt, Trunnion Cap1
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Komatsu : D45s-1(S/N 1501-Up) : Guard : Frame And Cover(#1501-1800)
01***16Bolt,(For Slag Handling)2
01***20Bolt,(Large Capacity Type) (Std)7
01***25Bolt,(Sandy? Dusty Terrain Spec.)4
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Komatsu : D45s-1(S/N 1501-Up) : Guard : Frame And Cover(#1801-)
01***16Bolt,(For Slag Handling)4
01***20Bolt,(Large Capacity Type) (Std)12
01***25Bolt,(Sandy? Dusty Terrain Spec.)4
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Komatsu : D45s-1(S/N 1501-Up) : Guard : Hitch
01***90Bolt (Kit)4
01***60Bolt (Ger)1
01***15Nut (Ger)1
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Komatsu : D45s-1(S/N 1501-Up) : Guard : Mark And Plate(#1501-1800)
04***60Screw, Serial Number Plate4
09***35Plate? Name,Machine (Limited Supply)1
09***00Plate? Instruction,Stopping The Engine1
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Komatsu : D45s-1(S/N 1501-Up) : Guard : Mark And Plate(#1801-)
04***60Screw, Serial Number Plate4
09***35Plate? Name,Machine (Limited Supply)1
09***01Plate? Instruction,Radiator Level1
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Komatsu : D45s-1(S/N 1501-Up) : Guard : Operator'S Seat(#1501-1800)
01***30Bolt,(Cold Terrain Spec.)4
01***75Bolt,(See Fig.0142)1
01***16Bolt,(Sandy And Dusty Spec.)2
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Komatsu : D45s-1(S/N 1501-Up) : Guard : Operator'S Seat(#1801-)
01***30Bolt,(Cold Terrain Spec.)4
01***16Bolt,(Sandy And Dusty Spec.)2
01***20Bolt,(Large Capacity Type) (Std)8
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Optional Parts
Komatsu : D45s-1(S/N 1501-Up) : Optional Parts : Canopy
01***35Bolt,(For Pedal Steering)8
01***42Washer,Spring (For Pedal Steering)8
12***10Canopy Ass'Y1
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Komatsu : D45s-1(S/N 1501-Up) : Optional Parts : Counter Weight
01***95Bolt6
01***60Bolt (Itl)1
01***85Stud2
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Komatsu : D45s-1(S/N 1501-Up) : Optional Parts : Engine Related Parts (For Tunnel Spec.)(#1801-)
01***16Bolt,(Sandy And Dusty Spec.)4
01***35Bolt - Torque Converter Totransmission Mounting4
01***30Washer,Spring(Sandy?Dusty Terrain S.)4
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Komatsu : D45s-1(S/N 1501-Up) : Optional Parts : Head Guard(#1801-)
01***35Bolt - Torque Converter Totransmission Mounting4
01***35Bolt24
01***40Bolt,(For Center Guard)8
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Komatsu : D45s-1(S/N 1501-Up) : Optional Parts : Perforated Radiator Mask
01***25Bolt,(Without Rops Guard? Canopy)4
01***36Wahser-Spring, Washer,Spring (Without Towing Winch)4
04***35Pin,Cotter4
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Komatsu : D45s-1(S/N 1501-Up) : Optional Parts : Radiator Dust Proof Grid
01***20Bolt,(For Quick Shift) (Mitsubishi)6
01***30Washer, Spring (Supplied W/Spider Assembly), Washer-Spring6
12***73Support,R.H2
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Komatsu : D45s-1(S/N 1501-Up) : Optional Parts : Strengthened Lower Guard
01***25Bolt,(Without Rops Guard? Canopy)6
01***40Bolt,R.H. Outside And L.H. Inside, Bolt12
01***36Wahser-Spring, Washer,Spring (Without Towing Winch)6
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Komatsu : D45s-1(S/N 1501-Up) : Optional Parts : Vandalism Protection
07***00Cap,(For Vandalism) (Not Shown) (Op)1
07***00Cap, Locking - Hydraulic Tank Oil Filler Cap1
07***00Cap,(For Vandalism Protection)1
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S4d105-1d S/N 22068-Up
Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Air Intake Connection And Air Cleaner
01***16Bolt,(For Slag Handling)3
01***20Bolt,(Sandy? Dusty Terrain Spec.)1
01***30Bolt,(Cold Terrain Spec.)1
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Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Air Intake Connection And Air Cleaner (Tunnel Spec.)(#60265-)
01***16Bolt,(For Slag Handling)3
01***20Bolt,(Sandy? Dusty Terrain Spec.)1
01***30Bolt,(Cold Terrain Spec.)1
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Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Alternator (25a)
60***50Alternator A. (25a)1
KD***30Holder,Brush1
KD***72Slip Ring Ass'Y1
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Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Alternator And Mounting
01***40Bolt,(Dust And Dirt Protection)1
01***30Bolt,Radio Controlled Slag Handling1
01***25Bolt1
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Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Camshaft And Tappet
01***18Bolt2
01***25Bolt,(Sandy? Dusty Terrain Spec.)1
01***65Bolt,(For Suction Fan)(4d130-1d)1
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Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Crankshaft
01***30Bolt,(For France Noise Suppression)4
02***04Plug,(Not Shown)4
04***25Key1
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Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Cylinder Block
01***30Bolt,Radio Controlled Slag Handling7
01***65Bolt3
01***36Washer,Radio Controlled Slag Handling7
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Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Cylinder Head
01***16Bolt,(For Slag Handling)6
01***25Bolt,(Sandy? Dusty Terrain Spec.)2
01***25Washer,Spring?(Sandy And Dusty Spec.)6
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Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Cylinder Head Cover
Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Exhaust Manifold And Muffler
01***11Nut (M14-1.50 Thd), Nut; Was 01582-014112
01***16Washer,Radio Controlled Slag Handling3
01***23Plain Washer2
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Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Exhaust Manifold And Muffler (Tunnel Spec.)(#60265-)
01***16Washer,Radio Controlled Slag Handling3
01***10Washer2
02***38Bolt4
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Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Flywheel And Flywheel Housing
01***25Bolt,(Sandy? Dusty Terrain Spec.)15
01***35Bolt, Mounting - Flywheel Housing End5
01***35Bolt - Torque Converter Totransmission Mounting8
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Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Front Cover
Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Fuel Filter And Mounting
01***20Bolt,(Large Capacity Type) (Std)4
01***35Bolt, Mounting - Flywheel Housing End2
01***30Washer,Spring(Sandy?Dusty Terrain S.)6
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Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Fuel Injection Pump (Feed Pump)
DK***20Housing1
DK***10Feed Pump Ass'Y1
DK***00Spring,Piston1
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Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Fuel Injection Pump (Governor)
DK***00Adapter1
DK***40Gasket,Air Compressor2
DK***00Collar1
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Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Fuel Injection Pump (Governor) (Tunnel Spec.)
DK***80Shim? 0.5mm0
DK***00Adapter1
DK***20Lever1
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Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Fuel Injection Pump (Pump)
61***80Injection Pump Ass'Y,(Tunnel Spec.)1
61***10Injection Pump Ass'Y1
DK***30Bearing2
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Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Fuel Injection Pump And Piping
01***25Bolt (M6-1.00x25)1
01***35Stud6
01***35Stud4
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Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Fuel Injection Pump And Piping (Tunnel Spec.)(#60265-)
01***25Bolt (M6-1.00x25)1
01***16Bolt,(For Slag Handling)2
01***35Stud4
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Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Fuel Nozzle And Spill Pipie
01***65Bolt8
07***12Gasket,Mechanical Pump Piping6
07***37Clamp, Overflow Hose2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Gasket Kit
01***23Washer,Lock (K2)1
07***65O-Ring,Injection Pump Case1
07***70O-Ring,(For Intake Air Cover)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Intake Air Heater(#44583-60264)
01***16Bolt,(For Slag Handling)1
01***05Nut (Welded)2
01***19Washer,(Not Used With Ventilator)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Intake Air Heater(#60265-)
01***16Bolt (Welded)2
01***30Bolt,(For France Noise Suppression)2
01***19Washer,(Not Used With Ventilator)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Lubricating Oil Filter And Oil Cooler
01***16Bolt,(For Slag Handling)8
01***25Bolt,(Without Auto Priming System)1
01***35Bolt, Mounting - Flywheel Housing End1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Lubricating Oil Pump
01***30Bolt,(For France Noise Suppression)8
01***30Washer,Spring(Sandy?Dusty Terrain S.)8
01***16Washer,Radio Controlled Slag Handling8
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Lubricating Oil Strainer
01***25Bolt,(Without Auto Priming System)2
01***25Bolt,(Sandy? Dusty Terrain Spec.)5
01***08Nut, Regular Hexagon (M10-1.50)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Oil Pan
01***20Bolt,(Sandy? Dusty Terrain Spec.)4
01***25Bolt,(Sandy? Dusty Terrain Spec.)23
01***30Bolt,(For France Noise Suppression)3
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Piston And Connecting Rod
61***14Bolt2
61***15Bolt,(Service Parts)2
61***22Nut,(Service Parts)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Resistor And Heater Signal(#44583-60264)
Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Rocker Arm
01***12Bolt,(Without R.P.C.U.)1
01***80Bolt,(Shim 5 Pieces Over)4
01***19Washer,(Not Used With Ventilator)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Starting Motor
60***40Starting Motor Ass'Y,(Dust And Drip Proof Type)1
60***41Starting Motor Ass'Y,(See Fig.1545)1
60***42Starting Motor A.,(5.5kw) (See Fig.2546)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Starting Motor And Mounting
01***35Bolt - Torque Converter Totransmission Mounting3
01***36Washer,Radio Controlled Slag Handling3
07***00O-Ring,(F4350-65a1 -5 )1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Tubrocharger (Except Japan)
61***00Turbocharger Ass'Y,(See Fig.1141)1
61***01Turbocharger Ass'Y,(See Fig.1141)1
61***02Turbocharger Ass'Y,(See Fig.1141)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Turbocharger Lubricating Oil Piping
01***22Bolt,(Cold Terrain Spec.)4
01***25Bolt,(Sandy? Dusty Terrain Spec.)2
01***25Washer,Spring?(Sandy And Dusty Spec.)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-1d S/N 22068-Up : Water Pump And Cooling Fan
01***16Bolt,(For Slag Handling)4
01***30Bolt,(Cold Terrain Spec.)2
01***50Bolt,(For Trimming Dozer)1
See all parts with full part numbers in Heavy Parts AI →
S4d105-2d S/N 22068-Up
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Air Intake Connection And Air Cleaner
01***22Bolt,(Cold Terrain Spec.)3
01***25Bolt,(Without Auto Priming System)4
01***30Bolt,(Cold Terrain Spec.)3
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Alternator
60***50Alternator A. (13a),(With Non Hardening Pulley)1
KD***30Holder,Brush1
KD***80Packing1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Alternator (800w)
60***70Alternator A1
KD***40Front Bracket A1
KD***80Plate2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Alternator And Mounting
01***25Bolt,(Sandy? Dusty Terrain Spec.)1
01***40Bolt,(Dust And Dirt Protection)1
01***55Bolt,(For Suction? Reversible Fan)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Balancer Shaft
01***20Bolt,(Sandy? Dusty Terrain Spec.)4
01***25Washer,Spring?(Sandy And Dusty Spec.)4
04***19Key,(Dk025805-1910)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Camshaft And Tappet
01***20Bolt,(Sandy? Dusty Terrain Spec.)2
01***25Bolt,(Sandy? Dusty Terrain Spec.)1
01***25Washer,Spring?(Sandy And Dusty Spec.)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Compression Release
01***20Bolt,(Sandy? Dusty Terrain Spec.)1
01***25Bolt,(Without Auto Priming System)1
01***05Nut (Welded)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Crankshaft And Timing Gear
01***30Bolt,(For France Noise Suppression)4
02***04Plug,(Not Shown)4
04***25Key1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Cylinder Block
01***55Bolt,(For Suction? Reversible Fan)4
01***65Bolt3
04***14Pin, Dowel2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Cylinder Head
01***16Bolt,(For Slag Handling)6
01***35Stud8
01***25Washer,Spring?(Sandy And Dusty Spec.)6
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Cylinder Head Cover
01***22Bolt,(Cold Terrain Spec.)10
01***20Bolt,(Large Capacity Type) (Std)1
01***25Bolt,(Sandy? Dusty Terrain Spec.)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Exhaust Manifold And Muffler
01***35Stud1
01***11Nut (M14-1.50 Thd), Nut; Was 01582-014112
01***25Washer,Spring?(Sandy And Dusty Spec.)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Flywheel And Flywheel Housing
01***14Bolt3
01***18Bolt6
01***25Bolt,(Sandy? Dusty Terrain Spec.)17
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Front Cover And Support
01***12Bolt,(Without R.P.C.U.)2
01***22Bolt2
01***45Bolt,(For Suction? Reversible Fan)10
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Fuel Filter And Mounting
01***35Bolt, Mounting - Flywheel Housing End2
01***30Washer,Spring(Sandy?Dusty Terrain S.)2
07***12Gasket,Mechanical Pump Piping1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Fuel Injection Pump (Feed Pump)
61***10Injection Pump A.,(See Fig.451)1
61***11Injection Pump A1
DK***20Housing1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Fuel Injection Pump (Governor)
61***10Injection Pump A.,(See Fig.451)1
DK***00Adapter1
DK***20Capsule,Spring1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Fuel Injection Pump (Pump)
61***10Injection Pump A.,(See Fig.451)1
61***11Injection Pump A1
DK***00Shim? 0.85mm0
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Fuel Injection Pump And Piping
01***16Bolt (Welded)1
01***18Bolt4
01***20Bolt,(Sandy? Dusty Terrain Spec.)10
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Fuel Nozzle And Spill Pipe
01***65Bolt8
07***12Gasket,Mechanical Pump Piping6
07***37Clamp, Overflow Hose2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Gasket Kit
01***12Washer,Lock (K2)1
01***08Washer,Lock (Kit)1
01***16Washer,Lock (K2)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Lubricating Oil Cooler
01***35Bolt, Mounting - Flywheel Housing End8
01***08Screw4
01***08Nut,R.H. Thread4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Lubricating Oil Filter
01***30Bolt,(For France Noise Suppression)1
01***80Bolt, Mount Strainer Flange2
01***04Nut2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Lubricating Oil Pump
01***16Bolt,(For Slag Handling)2
01***20Bolt,(Sandy? Dusty Terrain Spec.)1
01***25Bolt,(Without Auto Priming System)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Lubricating Oil Strainer
01***22Bolt2
01***25Bolt,(Sandy? Dusty Terrain Spec.)4
01***55Bolt,(For Suction? Reversible Fan)3
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Oil Pan
01***16Bolt,(For Slag Handling)2
01***20Bolt,(Large Capacity Type) (Std)1
01***25Bolt,(Sandy? Dusty Terrain Spec.)28
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Piston And Connecting Rod
61***15Bolt,(Service Parts)2
61***22Nut,(Service Parts)2
61***30Washer,(Service Parts)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Rocker Arm And Housing
01***12Bolt,(Without R.P.C.U.)1
01***20Bolt,(Sandy? Dusty Terrain Spec.)4
01***85Bolt15
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Safety Relay And Resistor
60***30Resistor1
60***10Alternator A1
60***10Regulator Ass'Y,For 35a Alternator (Not Shown)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Starting Motor And Mounting
01***35Bolt - Torque Converter Totransmission Mounting3
01***36Washer,Radio Controlled Slag Handling3
60***70Starting Motor A.,(See Fig.545)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Starting Motor(#.-)
60***71Starting Motor A1
KD***10Clutch Ass'Y,Over Running1
KD***80Shift Lever Ass'Y1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Starting Motor(#18273-.)
60***70Starting Motor A.,(See Fig.545)1
KD***90Cover1
KD***90Center Bracket A1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Thermostat And Piping(#18273-25354)
01***12Bolt (M8-1.25x12)3
01***22Bolt,(Cold Terrain Spec.)3
01***25Washer,Spring?(Sandy And Dusty Spec.)6
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Thermostat And Piping(#25355-)
01***25Bolt,(Without Auto Priming System)2
01***05Nut (Welded)2
01***19Washer,(Not Used With Ventilator)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Turbocharger (Except Japan)
61***01Turbocharger Ass'Y,(See Fig.141)1
61***02Turbocharger Ass'Y,(See Fig.141)1
61***03Turbocharger Ass'Y,(See Fig.141)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Turbocharger Lubricating Oil Piping
01***20Bolt,(Sandy? Dusty Terrain Spec.)2
01***22Bolt,(Cold Terrain Spec.)2
01***25Washer,Spring?(Sandy And Dusty Spec.)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Water Pipe And Thermostat
01***18Bolt3
01***22Bolt,(Cold Terrain Spec.)9
01***35Bolt,(Without Auto Priming System)3
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : S4d105-2d S/N 22068-Up : Water Pump And Cooling Fan
01***20Bolt,(Sandy? Dusty Terrain Spec.)2
01***25Bolt,(Without Auto Priming System)8
01***25Bolt,(Sandy? Dusty Terrain Spec.)6
See all parts with full part numbers in Heavy Parts AI →
Steering System And Final Drive
Komatsu : D45s-1(S/N 1501-Up) : Steering System 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 : D45s-1(S/N 1501-Up) : Steering System And Final Drive : Brake Band
01***40Bolt,(Not Used With Cab)8
01***08Nut, Regular Hexagon (M10-1.50)2
01***42Washer,Spring (For Pedal Steering)8
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : Steering System And Final Drive : Brake Lock Lever(#1801-)
01***25Bolt,(Sandy? Dusty Terrain Spec.)2
01***30Washer,Spring(Sandy?Dusty Terrain S.)2
04***24Pin, Spring1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : Steering System And Final Drive : Final Drive Gear
01***25Bolt,(Sandy? Dusty Terrain Spec.)24
01***20Bolt,(Used When Towing Winch)4
01***30Bolt,Radio Controlled Slag Handling12
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : Steering System And Final Drive : Final Drive Housing
01***18Bolt (Op)20
01***30Bolt,(For Center Guard)8
01***40Bolt,(Not Used With Cab)50
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : Steering System And Final Drive : Inching And Brake Pedal(#1801-)
01***20Bolt,(Large Capacity Type) (Std)3
01***05Nut (Welded)1
01***10Nut,(Without Air Conditioner)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : Steering System And Final Drive : Sprocket And Shaft
01***25Bolt,(Without Auto Priming System)16
01***50Bolt - Torque Converter Totransmission Mounting12
01***40Bolt,(Not Used With Cab)8
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : Steering System And Final Drive : Steering Case And Main Frame
01***12Bolt (M8-1.25x12)2
01***16Bolt,(For Slag Handling)2
01***25Bolt,(For Slag Handling)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : Steering System And Final Drive : Steering Case Cover (1/2)(#1501-1800)
01***20Bolt,(Large Capacity Type) (Std)6
01***35Bolt, Mounting - Flywheel Housing End2
01***30Bolt,Radio Controlled Slag Handling4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : Steering System And Final Drive : Steering Case Cover (1/2)(#1801-)
01***25Bolt,(Sandy? Dusty Terrain Spec.)8
01***30Bolt,Radio Controlled Slag Handling4
01***40Bolt,(Not Used With Cab)18
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : Steering System And Final Drive : Steering Case Cover (2/2)
01***20Bolt,(Large Capacity Type) (Std)4
01***40Bolt,(Dust And Dirt Protection)4
01***30Washer,Spring(Sandy?Dusty Terrain S.)4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : Steering System And Final Drive : Steering Clutch
01***10Nut (K10)2
04***30Ring,Snap? Sprocket2
06***15Bearing2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : Steering System And Final Drive : Steering Control Valve (1/2)
01***35Bolt,(Without Auto Priming System)2
01***30Bolt,Radio Controlled Slag Handling1
01***35Bolt - Torque Converter Totransmission Mounting4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : Steering System And Final Drive : Steering Control Valve (2/2)
01***18Bolt5
01***06Nut, Regular Hexagon (M8-1.25)2
01***25Washer,Spring?(Sandy And Dusty Spec.)5
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : Steering System And Final Drive : Steering Filter
01***30Bolt,(For France Noise Suppression)4
01***30Washer,Spring(Sandy?Dusty Terrain S.)4
07***10O-Ring,(F4350-62a0 -5 ), O-Ring; Komatsu S/N 22***01 & Abv - Was 07000-02010, O-Ring; Was 07000-020101
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : Steering System And Final Drive : Steering Pedal And Inching(#1501-1800)
01***30Bolt,(For France Noise Suppression)4
01***40Bolt,(Dust And Dirt Protection)4
01***25Bolt - Rear Guard Mounting4
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : Steering System And Final Drive : Steering Pedal Linkage(#1501-1800)
01***30Bolt,(Cold Terrain Spec.)2
01***25Bolt,(Sandy? Dusty Terrain Spec.)2
01***45Bolt, Mount Center Hinge Retainer (Lower)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : Steering System And Final Drive : Steering Pedal Linkage(#1801-)
01***30Bolt,(Cold Terrain Spec.)2
01***11Nut - Mounting2
01***07Nut2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : Steering System And Final Drive : Steering Pedal(#1801-)
01***30Bolt,Radio Controlled Slag Handling8
01***10Nut,(Dust?Drip Proof? Trimming S.)2
01***10Nut,(Fig.F2820-01a3-12)8
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : Steering System And Final Drive : Steering Piping(#1501-1800)
01***25Bolt,(Sandy? Dusty Terrain Spec.)6
01***30Bolt,(For France Noise Suppression)12
01***35Bolt, Mounting - Flywheel Housing End2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : Steering System And Final Drive : Steering Piping(#1801-)
01***25Bolt,(Sandy? Dusty Terrain Spec.)6
01***30Bolt,(For France Noise Suppression)10
01***35Bolt, Mounting - Flywheel Housing End2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : Steering System And Final Drive : Steering Pump
04***18Ring, Snap1
07***60Seal,Oil1
07***01Pump Ass'Y,(See Fig.341)1
See all parts with full part numbers in Heavy Parts AI →
Tool And Kit
Komatsu : D45s-1(S/N 1501-Up) : Tool And Kit : Service Kit
07***80O-Ring (Kit)1
07***14O-Ring1
07***70O-Ring,(For Slag Handling)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : Tool And Kit : Tool
07***00Pump,Grease1
07***00Pump,Grease1
07***00Cartridge,Grease1
See all parts with full part numbers in Heavy Parts AI →
Torque Convertor And Transmission
Komatsu : D45s-1(S/N 1501-Up) : Torque Convertor And Transmission : 1st Clutch
04***14Pin, Dowel1
04***28Pin, Dowel - Transmission Case, Pin-Dowel3
04***30Ring, Retaining1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : Torque Convertor And Transmission : 2nd Clutch And 3rd Clutch
01***60Bolt (M10-1.50x60)6
01***35Bolt - Torque Converter Totransmission Mounting8
01***30Washer,Spring(Sandy?Dusty Terrain S.)6
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : Torque Convertor And Transmission : Damper(#1501-1800)
01***16Bolt,(For Slag Handling)2
01***18Bolt (Op)12
01***30Bolt,(For France Noise Suppression)12
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : Torque Convertor And Transmission : Damper(#1801-)
01***16Bolt,(For Slag Handling)2
01***18Bolt (Op)12
01***25Bolt,(Sandy? Dusty Terrain Spec.)12
See all parts with full part numbers in Heavy Parts AI →
Komatsu : D45s-1(S/N 1501-Up) : Torque Convertor And Transmission : Forward Clutch And Reverse Clutch
04***20Ring, Retaining1
04***20Ring, Retainer1
04***30Ring, Snap, Snap-Ring1
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Komatsu : D45s-1(S/N 1501-Up) : Torque Convertor And Transmission : Torque Convertor Housing(#1801-)
01***25Bolt,(Sandy? Dusty Terrain Spec.)4
01***30Bolt,(For France Noise Suppression)4
01***35Bolt, Mounting - Flywheel Housing End1
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Komatsu : D45s-1(S/N 1501-Up) : Torque Convertor And Transmission : Torque Convertor Housing(#K1001-1201)
01***16Bolt,(For Slag Handling)4
01***30Bolt,(For France Noise Suppression)11
01***30Bolt,Radio Controlled Slag Handling6
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Komatsu : D45s-1(S/N 1501-Up) : Torque Convertor And Transmission : Torque Convertor Oil Pump And Filter(#1501-1800)
01***30Bolt,(Cold Terrain Spec.)4
01***30Bolt,(For France Noise Suppression)7
01***07Castle Nut1
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Komatsu : D45s-1(S/N 1501-Up) : Torque Convertor And Transmission : Torque Convertor Valve(#1501-1800)
01***65Bolt,(For Suction Fan)(4d130-1d)4
01***30Washer,Spring(Sandy?Dusty Terrain S.)4
07***22O-Ring,(For Slag Handling)2
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Komatsu : D45s-1(S/N 1501-Up) : Torque Convertor And Transmission : Torque Convertor Valve(#1801-)
01***65Bolt,(For Suction Fan)(4d130-1d)2
01***30Washer,Spring(Sandy?Dusty Terrain S.)2
04***87Ball1
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Komatsu : D45s-1(S/N 1501-Up) : Torque Convertor And Transmission : Transmission Case
01***25Bolt,(Sandy? Dusty Terrain Spec.)3
01***30Bolt,(For France Noise Suppression)14
01***40Bolt,(Dust And Dirt Protection)16
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Komatsu : D45s-1(S/N 1501-Up) : Torque Convertor And Transmission : Transmission Case Cover And Lever
01***18Bolt4
01***30Bolt,(Cold Terrain Spec.)1
01***25Bolt,(Sandy? Dusty Terrain Spec.)10
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Komatsu : D45s-1(S/N 1501-Up) : Torque Convertor And Transmission : Transmission Control Lever
01***20Bolt,(Sandy? Dusty Terrain Spec.)3
01***30Bolt,(Cold Terrain Spec.)1
01***20Bolt,(Large Capacity Type) (Std)3
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Komatsu : D45s-1(S/N 1501-Up) : Torque Convertor And Transmission : Transmission Control Valve (1/2)
01***20Bolt,(Sandy? Dusty Terrain Spec.)4
01***30Bolt,(Cold Terrain Spec.)2
01***06Nut, Regular Hexagon (M8-1.25)2
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Komatsu : D45s-1(S/N 1501-Up) : Torque Convertor And Transmission : Transmission Control Valve (2/2)
01***20Bolt,(Sandy? Dusty Terrain Spec.)2
01***55Bolt,(For Suction? Reversible Fan)4
01***25Washer,Spring?(Sandy And Dusty Spec.)2
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Komatsu : D45s-1(S/N 1501-Up) : Torque Convertor And Transmission : Transmission Lubrication Valve
01***20Bolt,(Sandy? Dusty Terrain Spec.)2
01***55Bolt,(For Suction? Reversible Fan)4
01***25Washer,Spring?(Sandy And Dusty Spec.)2
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Komatsu : D45s-1(S/N 1501-Up) : Torque Convertor And Transmission : Transmission Mounting
01***30Bolt,(For France Noise Suppression)2
01***35Bolt, Mounting - Flywheel Housing End2
01***40Bolt,(Not Used With Cab)12
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Komatsu : D45s-1(S/N 1501-Up) : Torque Convertor And Transmission : Transmission Oil Filter
01***30Bolt,(For France Noise Suppression)5
01***30Washer,Spring(Sandy?Dusty Terrain S.)5
07***75O-Ring,Steering Oil Filter1
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Komatsu : D45s-1(S/N 1501-Up) : Torque Convertor And Transmission : Transmission Oil Piping
01***20Bolt,(Large Capacity Type) (Std)2
01***30Bolt,(For France Noise Suppression)8
01***35Bolt, Mounting - Flywheel Housing End4
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Komatsu : D45s-1(S/N 1501-Up) : Torque Convertor And Transmission : Transmission Oil Pump
04***18Ring, Snap1
07***60Seal,Oil1
07***00Pump Ass'Y,(Far028)1
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Komatsu : D45s-1(S/N 1501-Up) : Torque Convertor And Transmission : Turbine And Stator(#1501-1800)
01***30Bolt,(Cold Terrain Spec.)1
01***25Bolt,(Sandy? Dusty Terrain Spec.)8
01***30Bolt,(For France Noise Suppression)12
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Komatsu : D45s-1(S/N 1501-Up) : Torque Convertor And Transmission : Turbine And Stator(#1801-)
01***30Bolt,(Cold Terrain Spec.)8
01***25Bolt,(Sandy? Dusty Terrain Spec.)8
01***30Bolt,(For France Noise Suppression)12
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Komatsu : D45s-1(S/N 1501-Up) : Torque Convertor And Transmission : Universal Joint(#1501-1800)
01***30Washer,Spring(Sandy?Dusty Terrain S.)16
07***45Bolt,(Tree Pusher Dozer)16
12***10Universal Joint1
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Track
Komatsu : D45s-1(S/N 1501-Up) : Track : Carrier Roller
01***20Bolt,(Large Capacity Type) (Std)2
01***25Bolt,(Sandy? Dusty Terrain Spec.)3
01***45Bolt,(For Slag Handling)8
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Komatsu : D45s-1(S/N 1501-Up) : Track : Idler
01***25Bolt,(Sandy? Dusty Terrain Spec.)12
01***40Bolt,(Not Used With Cab)8
01***13Nut - Cylinder Mounting2
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Komatsu : D45s-1(S/N 1501-Up) : Track : Recoil Spring
01***16Bolt,(Sandy And Dusty Spec.)2
01***20Bolt,(Large Capacity Type) (Std)6
01***35Bolt - Torque Converter Totransmission Mounting12
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Komatsu : D45s-1(S/N 1501-Up) : Track : Track Frame
01***30Bolt,(For Center Guard)30
01***40Bolt,(Not Used With Cab)2
01***45Bolt, Mount Center Hinge Retainer (Lower)14
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Komatsu : D45s-1(S/N 1501-Up) : Track : Track Roller
01***25Bolt,(Sandy? Dusty Terrain Spec.)12
01***55Bolt,(For Long Track)40
01***30Washer,Spring(Sandy?Dusty Terrain S.)12
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Komatsu : D45s-1(S/N 1501-Up) : Track : Track Shoe (Lubricate Type)(#2101-)
01***22Nut? Shoe (Kit)280
12***20Track Link Ass'Y1
12***00Track Shoe Ass'Y1
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Komatsu : D45s-1(S/N 1501-Up) : Track : Track Shoe (Master Pin Type)(#1501-2100)
01***22Nut? Shoe (Kit)296
12***10Track Link Ass'Y1
12***11Track Link Ass'Y1
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Komatsu : D45s-1(S/N 1501-Up) : Track : Track Shoe (Master Pin Type)(#2101-)
01***22Nut? Shoe (Kit)296
12***10Track Link Ass'Y1
12***03Track Shoe Ass'Y1
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Work Equipment
Komatsu : D45s-1(S/N 1501-Up) : Work Equipment : Bucket
01***15Nut4
07***00Fitting, Grease - Upper Hinge Pin4
09***20Bolt4
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Komatsu : D45s-1(S/N 1501-Up) : Work Equipment : Lift Arm
01***25Bolt - Rear Guard Mounting4
01***30Bolt,Radio Controlled Slag Handling4
01***35Bolt,(For Pedal Steering)4
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Komatsu : D45s-1(S/N 1501-Up) : Work Equipment : Side Frame
01***35Bolt,(For Pedal Steering)4
01***45Bolt, Fuel Tank Mounting - Front Right8
01***60Bolt14
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Work Equipment Control System
Komatsu : D45s-1(S/N 1501-Up) : Work Equipment Control System : Bucket Control Lever
01***30Bolt,(Cold Terrain Spec.)3
01***30Bolt,Radio Controlled Slag Handling4
01***35Bolt - Torque Converter Totransmission Mounting2
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Komatsu : D45s-1(S/N 1501-Up) : Work Equipment Control System : Bucket Control Linkage
01***20Bolt,(Sandy? Dusty Terrain Spec.)2
01***20Bolt,(Large Capacity Type) (Std)2
01***30Bolt,(For France Noise Suppression)2
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Komatsu : D45s-1(S/N 1501-Up) : Work Equipment Control System : Bucket Dump Cylinder
01***35Bolt,(Without Auto Priming System)4
01***50Bolt,(For Trimming Dozer)4
01***25Bolt - Rear Guard Mounting2
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Komatsu : D45s-1(S/N 1501-Up) : Work Equipment Control System : Bucket Lift Cylinder
01***30Bolt,(Cold Terrain Spec.)4
01***35Bolt,(Without Auto Priming System)2
01***50Bolt,(For Trimming Dozer)2
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Komatsu : D45s-1(S/N 1501-Up) : Work Equipment Control System : Hydraulic Control Valve (1/2)
01***30Bolt,(For France Noise Suppression)4
01***55Bolt,(For Suction? Reversible Fan)1
01***40Bolt,(Dust And Dirt Protection)4
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Komatsu : D45s-1(S/N 1501-Up) : Work Equipment Control System : Hydraulic Control Valve (2/2)
01***35Bolt, Mounting - Flywheel Housing End5
01***40Bolt,(Dust And Dirt Protection)2
01***80Bolt, Mount Strainer Flange4
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Komatsu : D45s-1(S/N 1501-Up) : Work Equipment Control System : Hydraulic Filter
01***25Bolt - Rear Guard Mounting1
01***40Bolt,(Not Used With Cab)2
01***45Bolt,(For Slag Handling)6
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Komatsu : D45s-1(S/N 1501-Up) : Work Equipment Control System : Hydraulic Piping (Tank To Bucket Dump Cylinder)(#1501-1800)
01***35Bolt,(Without Auto Priming System)20
01***45Bolt,(S6d155-4b)6
01***60Bolt,(Without Alternator Bracket)6
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Komatsu : D45s-1(S/N 1501-Up) : Work Equipment Control System : Hydraulic Piping (Tank To Bucket Lift Cylinder)
01***30Bolt,(Cold Terrain Spec.)8
01***40Bolt,(Dust And Dirt Protection)8
01***30Bolt,Radio Controlled Slag Handling4
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Komatsu : D45s-1(S/N 1501-Up) : Work Equipment Control System : Hydraulic Piping (Tank To Bucket Tilt Cylinder)(#1801-)
01***35Bolt,(Without Auto Priming System)12
01***45Bolt,(S6d155-4b)6
01***60Bolt,(Without Alternator Bracket)6
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Komatsu : D45s-1(S/N 1501-Up) : Work Equipment Control System : Hydraulic Piping (Tank To Pump)(#1501-1800)
01***55Bolt,(For Suction? Reversible Fan)2
01***65Bolt,(For Suction Fan)(4d130-1d)2
01***25Bolt - Rear Guard Mounting2
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Komatsu : D45s-1(S/N 1501-Up) : Work Equipment Control System : Hydraulic Piping (Tank To Pump)(#1801-)
01***55Bolt,(For Suction? Reversible Fan)2
01***65Bolt,(For Suction Fan)(4d130-1d)2
01***25Bolt - Rear Guard Mounting4
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Komatsu : D45s-1(S/N 1501-Up) : Work Equipment Control System : Hydraulic Pump(#1501-1800)
04***20Ring, Snap1
07***62Seal,Oil1
07***01Pump Ass'Y,(Par 056)1
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Komatsu : D45s-1(S/N 1501-Up) : Work Equipment Control System : Hydraulic Pump(#1801-)
04***18Ring,Snap (Itl)1
07***62Seal,Oil (Itl)1
70***00Pump Ass'Y,(Kar 056)1
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Komatsu : D45s-1(S/N 1501-Up) : Work Equipment Control System : Hydraulic Tank (1/2)
01***16Bolt,(Sandy And Dusty Spec.)2
01***25Bolt,(Sandy? Dusty Terrain Spec.)45
01***35Bolt,(For Pedal Steering)4
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Komatsu : D45s-1(S/N 1501-Up) : Work Equipment Control System : Hydraulic Tank (2/2)
01***30Bolt,(Cold Terrain Spec.)2
01***25Bolt,(Sandy? Dusty Terrain Spec.)2
01***30Bolt,(For France Noise Suppression)2
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D45S-1(S/N 1501-UP) serial number reference

The PIN plate for the Komatsu D45S-1 is located on the front frame casting, typically on the operator's left side near the radiator support. Read the prefix as the model code (D45S-1) followed by the sequential serial number (1501-UP) stamped on the plate.

PrefixIdentifies
D45S-1Standard

Frequently asked questions

What engine does the Komatsu D45S-1 use?

The Komatsu D45S-1 uses a Komatsu diesel engine, specific details vary by configuration and serial range. Consult the factory spec sheet for the exact engine model and serial number.

What is the operating weight of the D45S-1?

The operating weight varies by configuration, including blade size, ripper attachment, and track shoe width. Refer to the specific machine's data plate or factory documentation for the exact weight.

What model replaced the Komatsu D45S-1?

The D45S-1 was succeeded by newer generations in Komatsu's heavy dozer lineup. Specific successor models depend on the production year and regional market requirements. Consult Komatsu historical records for the direct replacement model.

What D45S-1(S/N 1501-UP) owners discuss

What engine powers the Komatsu D45S-1 (S/N 1501-UP) and what are its common operational quirks?
The Komatsu D45S-1 (S/N 1501-UP) is powered by the Komatsu 6D125 turbocharged diesel engine. Owners and mechanics note that this engine is robust but sensitive to fuel quality and air intake restrictions. Common quirks include a tendency to lose power under heavy load if the air filter is dirty or the fuel tank vent is blocked. Overheating during heavy excavation is often linked to debris packed between the radiator, hydraulic oil cooler, and charge-air cooler. The engine is generally reliable if maintenance intervals are strictly followed, but contamination and extended service intervals accelerate wear on injectors and fuel delivery components. Note: The D45A-1 variant (S/N 1504-UP) uses a different engine configuration; do not mix specifications between the S-1 and A-1 models.
What are the typical hydraulic behaviors and failure patterns for the D45S-1?
The D45S-1 hydraulic system is known for sensitivity to oil temperature and contamination. A common diagnostic pattern is hydraulics working well when cold but becoming weak when hot, indicating excessive internal leakage in the main pump, control valve, or cylinders due to decreased oil viscosity. If all functions (boom, arm, bucket, swing, travel) become slow simultaneously, the issue is likely shared: low oil level, clogged filters, incorrect oil specification, or engine RPM drop under load. If only one function is slow, focus on that specific circuit’s cylinder, control valve spool, or hoses. Komatsu’s maintenance program specifically highlights hydraulic oil and system servicing to prevent these issues. Note: The D45P-1 variant has different hydraulic control characteristics; verify specs for the S-1 model.
What undercarriage wear patterns and maintenance issues are typical for this machine?
The D45S-1 features a 400 mm track width and a soil pressure of 0.66 kg/cm². Common undercarriage issues include worn bushings leading to noise and vibration, and worn bearings causing premature track failure. Track tension must be monitored regularly; repeated loosening often indicates adjuster or component wear. Mud or debris packed into the undercarriage can cause mechanical binding and uneven track wear. The line is known to wear out complete machines simultaneously; if a hydraulic pump fails, the engine may be near failure, impacting resale value. Regular inspection of rollers, track chains, and track pads is essential to prevent costly downtime.
What electrical and sensor issues are commonly reported by owners?
The D45S-1 relies 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 machine shutdowns. Common electrical checks include battery state of charge, terminal condition, engine and chassis grounds, and main starter cable integrity. A battery may show acceptable voltage until the starter is loaded; perform a load and voltage-drop test if voltage collapses during starting. Multiple fault codes often point to battery, ground, or connector issues rather than component failure. Note: The D45A-1 and D45P-1 may have different electrical configurations; verify with the specific machine’s service manual.
What should be checked when buying a used D45S-1 (S/N 1501-UP)?
When purchasing a used D45S-1 (S/N 1501-UP), verify the serial number to confirm it is not a D45A-1 (S/N 1504-UP) or D45P-1 (S/N 1501-UP with different specs). Check the engine for oil burning, which may indicate worn piston rings or valve guides. Inspect the turbocharger for damage, as a failed turbo can send debris into the intake manifold and blockage. Test all hydraulic functions cold and hot to identify internal leakage. Check the undercarriage for wear, track tension, and debris packing. Verify the electrical system for intermittent faults, dashboard functionality, and sensor reliability. Note: The D45A-1 has different engine and transmission specs; ensure you are evaluating the correct model.
What are the known powertrain and transmission behaviors for the D45S-1?
The D45S-1 powertrain includes a transmission with a main clutch that can slip, requiring replacement. Owners have reported heat issues in the main clutch housing; substituting the specified 10w oil with a good quality 10w30 synthetic oil has resolved some heat problems. The transmission oil passages should be checked for blockages during service. The powertrain is designed to wear out completely; if one component fails, others may be near end-of-life. Note: The D45A-1 and D45P-1 have different transmission configurations; verify specs for the S-1 model.
What safety-critical fixes or inspections are recommended for the D45S-1?
Safety-critical inspections include checking the brake system for proper function, ensuring the steering system operates correctly, and verifying the integrity of the hydraulic lines to prevent leaks. The turbocharger must be inspected for damage, as a failure can send debris into the engine. The cooling system must be checked for proper coolant level and fan operation to prevent overheating. Have your dealer verify the engine and transmission condition, as well as the undercarriage wear, to ensure safe operation. Note: The D45A-1 and D45P-1 may have different safety systems; verify with the specific machine’s service manual.

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

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