Komatsuengine(no series)

Komatsu S6D95L-1U-C(S/N 35360-UP)

Maintenance schedule, common problems & OEM parts breakdown

The Komatsu S6D95L-1U-C engine is a 6-cylinder, water-cooled, direct injection diesel unit belonging to the 95 Series. It delivers 110 HP at 2,000 rpm with a maximum torque of 41.5 kgm at 1,500 rpm. This engine powers the FD60H, FD70H, and FD80H-5 dozer models. Production years for this specific configuration are not documented in the available sources. The engine features a 95 mm bore and 115 mm stroke, resulting in a total displacement of 4,890 cm³. It utilizes a Bosch VE distributor-type fuel pump and a mechanical all-speed governor. The dry weight is 425 kg. The S6D95L-1U-C is part of the S6D95L family, which includes variants like the S6D95L-1 and S6D95L-1U. Specific predecessor and successor lineage details are not documented for this exact serial range.

Across the 95 Series, the S6D95L-1U-C distinguishes itself with its specific application in the FD60H/70H/80H-5 dozer line, differing from the 6D95L-1 variants used in excavators and loaders. The 'U' suffix and serial number 35360-UP indicate a specific configuration within the S6D95L family. In the used and parts market, this engine is significant due to its robust mechanical design and widespread use in heavy dozing applications. The availability of overhaul kits and the engine's durability make it a staple for fleet maintenance. The engine's specifications, such as its 11-liter oil capacity and 18-liter coolant capacity, are critical for parts ordering and service planning. The S6D95L-1U-C's role in the FD series dozers highlights its importance in earthmoving operations where high torque and reliability are required.

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 S6D95L-1U-C(S/N 35360-UP) specifications

Engine

ModelS6D95L-1U-C
Series/Generation95 Series
Configuration6-cylinder in-line, water-cooled, direct injection, turbocharged diesel
Displacement4,890 cm³ (298.4 in³)
Bore x Stroke95 mm x 115 mm (3.74 in x 4.53 in)
Gross/Net Power95 HP (71 kW) at 2,250 rpm
Maximum Torque32 kgm (231 ft·lbf) at 1,500 rpm
Emissions TierNot documented for this exact serial range — verify with your dealer

Weights

Operating WeightNot documented for this exact serial range — verify with your dealer
Shipping WeightNot documented for this exact serial range — verify with your dealer
Ground PressureNot documented for this exact serial range — verify with your dealer

Dimensions

Transport LengthNot documented for this exact serial range — verify with your dealer
Transport WidthNot documented for this exact serial range — verify with your dealer
Transport HeightNot documented for this exact serial range — verify with your dealer
Track GaugeNot documented for this exact serial range — verify with your dealer
Ground ClearanceNot documented for this exact serial range — verify with your dealer

Performance

Travel SpeedNot documented for this exact serial range — verify with your dealer
GradeabilityNot documented for this exact serial range — verify with your dealer

Service capacities (summary)

Fuel TankNot documented for this exact serial range — verify with your dealer
Hydraulic SystemNot documented for this exact serial range — verify with your dealer
Engine Oil11 L (2.9 US gal)
Cooling System8.5 L (2.2 US gal)

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

Komatsu S6D95L-1U-C(S/N 35360-UP) 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
  • Check fuel level and drain water from separator
  • Check DEF level on Tier 4 machines
  • Check air filter restriction indicator
Every 250 h
  • Change engine oil and filter
  • Grease all points including boom, stick, bucket, and swing bearing
  • Check fluid levels
  • Check air filter element
  • Inspect belts and hoses
  • Perform visual walk-around inspection
Every 500 h
  • Replace fuel filter
  • Replace hydraulic return filter
  • Perform battery load test
  • Test coolant SCA concentration
  • Collect KOWA oil sample
  • Perform detailed undercarriage inspection
Every 1,000 h
  • Change final drive oil on both sides
  • Inspect turbocharger
  • Take hydraulic oil sample
  • Check and measure wear components
  • Check valve adjustment
  • Perform structural inspection
Every 2,000 h
  • Change hydraulic system oil
  • Flush and replace coolant
  • Service transmission
  • Perform comprehensive component evaluation
  • Check KDPF (at 4,500 hours)
  • Inspect and replace worn belts, hoses, and clamps

Servicing the S6D95L-1U-C(S/N 35360-UP) beyond the schedule

Predictive Maintenance & Fluid Analysis

Utilize KOWA fluid analysis at every 500-hour interval to monitor wear metals and contaminants. Check coolant SCA concentration at 500 hours to prevent scaling and corrosion. Monitor hydraulic oil particle count and viscosity at 1,000 hours. Track engine oil soot and fuel dilution levels. Use KOMTRAX telematics to track load frequency and fault codes for proactive scheduling. Inspect air filter restriction indicators daily to ensure proper airflow and prevent turbocharger damage. Verify DEF levels daily on Tier 4 compliant machines to maintain emissions compliance.

Corrective & Common Repairs

Address fuel system issues by replacing the fuel filter at 500 hours to prevent injector clogging. Inspect the Bosch VE distributor-type pump for leaks or wear. Check turbocharger shaft play and housing for oil leaks. Replace worn belts and hoses during the 2,000-hour service. Inspect the starter motor and alternator connections for corrosion. Check the fuel water separator daily and drain accumulated water. Replace the hydraulic return filter at 500 hours to protect hydraulic components from contamination.

Overhaul & Rebuild Points

Plan for an in-frame overhaul at 10,000 hours or based on KOWA analysis results. Replace piston rings and liners if compression drops below specification. Inspect the crankshaft and main bearings for wear during major service. Check the cylinder head gasket for leaks and replace if necessary. Recondition the valve train components, including springs and retainers. Inspect the timing gear case for wear and replace gears if backlash exceeds limits. Use genuine Komatsu gasket kits for reassembly to ensure proper sealing.

Seasonal & Environment Servicing

In cold climates, use appropriate grade engine oil and coolant to prevent freezing. Check battery electrolyte levels and charge state frequently in cold weather. Inspect hoses and belts for brittleness in extreme heat. Clean radiator and oil cooler fins regularly to prevent overheating. Use high-quality fuel to prevent waxing in cold temperatures. Check the air intake system for moisture accumulation. Inspect the cooling system for leaks and ensure the thermostat functions correctly. Use Komatsu Genuine Lubricants formulated for specific environmental conditions.

S6D95L-1U-C(S/N 35360-UP) common service parts

Part numberPart
07281-00197Clamp,(With Pre-Fuel Filter)Check fitment →
600-311-9100Fuel Filter Ass'YCheck fitment →
600-311-1320Plate? Caution,Fuel FilterCheck fitment →
600-311-8221Cartridge,Engine Fuel FilterCheck fitment →
6136-71-6120Cartridge,Engine Fuel FilterCheck fitment →

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

S6D95L-1U-C(S/N 35360-UP) fault codes & troubleshooting

CodeMeaningLikely causeWhat to do
CA115Engine crankshaft speed sensor and backup speed sensor failureFaulty speed sensor, broken wiring harness, or corroded connector at the pin connectorReplace the speed sensor and verify voltage at the pin connector
CA451Common rail pressure sensor feedback value too highMalfunctioning rail pressure sensor or actual overpressure condition in the fuel systemDiagnose the fuel rail pressure sensor and check pump lines
CA111Internal engine controller faultCritical internal failure of the Electronic Control Module (ECM)Replace or reprogram the ECM
CA122Intake air pressure sensor feedback voltage too highFaulty intake pressure sensor or wiring issueVerify the intake pressure sensor and wiring integrity
CA123Intake air pressure sensor feedback voltage too lowSensor short circuit or airflow restrictionCheck for a sensor short or an airflow restriction
CA441Battery voltage too lowWeak battery, faulty alternator, or voltage regulator issueReplace the alternator or battery; check the voltage regulator
CA442Battery voltage too highFaulty voltage regulator or alternator overchargingReplace the alternator or battery; check the voltage regulator
CA234Engine overspeedThrottle calibration error, engine load cycle issue, or operator misuseVerify throttle calibration and engine load cycle
AA10NXAir cleaner cloggingBlocked air filter elementReplace the air filter
B@BCNSEngine coolant overheatingLow coolant level, blocked radiator fins, or fan belt failureCheck radiator fins, fan belt, and coolant level

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

S6D95L-1U-C(S/N 35360-UP) attachments & work tools

Excavator Buckets

The S6D95L-1U-C(S/N 35360-UP) engine powers the PC200-5 and PC220-5 excavator series, which are 20-ton class machines. Typical work tool families include standard digging buckets and heavy-duty rock buckets for these models. Factory configurations for this size class typically specify bucket widths ranging from approximately 600 mm to 900 mm (23.6 in to 35.4 in) depending on the specific machine model (PC200 vs PC220) and material density. Coupler systems for these excavators generally utilize standard pin-on attachments with quick coupler options available as factory or dealer-installed configurations.

Hydraulic Breakers

Compatible with the PC200-5 and PC220-5 excavator platforms, hydraulic breakers are a primary work tool family for this engine class. These attachments require a dedicated high-flow hydraulic circuit, typically involving a pilot-operated check valve and auxiliary hydraulic lines routed to the boom. Factory guarding options for this size class often include breaker mode settings in the monitor system to regulate pump flow and pressure for optimal hammer performance.

Grading and Dozing Tools

The S6D95L-1U-C engine is also utilized in motor grader applications such as the GD511A-1, as indicated by parts compatibility data. Work tools for this configuration include moldboards and ripper assemblies designed for road construction and grading. Mounting systems for these tools involve rigid frame attachments with hydraulic cylinders for angle and tilt adjustment. Factory configurations for motor graders in this class typically include standard moldboard widths and ripper shank options based on the specific GD511A-1 variant.

Loader Buckets and Attachments

While the S6D95L-1U-C is primarily associated with excavator and grader platforms, the broader S6D95L series supports wheel loader applications like the WA100M-5. For the PC200-5/PC220-5 excavator class, compatible work tools include grading buckets and trenching buckets. These attachments require standard hydraulic quick couplers and may utilize auxiliary hydraulics for tilt or angle control. Factory options for this size class often include various tooth patterns and cutting edge materials based on the intended ground condition.

All S6D95L-1U-C(S/N 35360-UP) assemblies by section

Every catalogued assembly group for the Komatsu S6D95L-1U-C(S/N 35360-UP). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

Cooling System
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Cooling System : Cooling Fan
01***30Bolt,(For Quick Shift) (Mitsubishi)6
01***25Bolt,L.H. (For Add. Air Compressor)6
01***30Washer, Spring (Supplied W/Spider Assembly), Washer-Spring6
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Cooling System : Cooling Fan (Sandy And Dusty Spec.)(#56994-)
01***35Bolt,(For Quick Shift) (Mitsubishi)6
01***25Bolt,L.H. (For Add. Air Compressor)6
01***30Washer, Spring (Supplied W/Spider Assembly), Washer-Spring6
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Cooling System : Corrosion Resistor And Piping(#56439-)
01***35Bolt2
01***08Nut,See Fig. K4010-04a02
07***12Gasket,(Without Air Compressor Type) (K1)7
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Cooling System : Water Pump And Mounting
01***16Screw5
01***20Screw8
01***55Bolt,(With Engine Stop Motor Type)3
See all parts with full part numbers in Heavy Parts AI →
Cylinder Block
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Cylinder Block : Camshaft And Tappet
01***20Screw2
04***16Fitting Wedge1
62***10Tappet12
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Cylinder Block : Crankshaft
01***45Bolt,Nylock1
01***35Bolt, Mount Bracket To Floor6
61***20Collar,Taper1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Cylinder Block : Cylinder Block
01***16Screw1
01***06Nut1
01***10Washer,See Fig. K4010-12a01
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Cylinder Block : Flywheel And Flywheel Housing
01***30Bolt6
01***30Bolt - Lower Oil Cooler Outlet Tubemounting11
07***16Gasket,(For Pc750-6) (See Fig.A2110)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Cylinder Block : Front Cover And Gear
01***70Bolt,(For 75a Alternator)1
01***16Bolt2
01***16Screw2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Cylinder Block : Oil Pan
01***12Bolt,(Without R.P.C.U.)3
01***16Bolt, Mount Solenoid Valve28
01***30Bolt,(Water Separator Spec.)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Cylinder Block : Piston And Connecting Rod
04***12Ring, Snap12
62***10Bolt2
62***41Piston (S)6
See all parts with full part numbers in Heavy Parts AI →
Cylinder Head
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Cylinder Head : Air Cleaner And Connection (Double Element Type)(#35360-82575)
01***20Screw2
01***05Screw2
01***05Bolt2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Cylinder Head : Air Cleaner And Connection (Double Element Type)(#82576-)
01***20Screw2
01***05Screw2
01***07Nut,Lock2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Cylinder Head : Air Cleaner And Connection (Single Element Type)(#35360-82575)
01***20Screw2
01***05Screw2
01***05Bolt2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Cylinder Head : Air Cleaner And Connection (Single Element Type)(#82576-)
01***20Screw2
01***05Screw2
01***07Nut,Lock2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Cylinder Head : Air Intake Manifold And Connection
01***12Bolt2
01***25Bolt,(With Corrosion Resistor)11
01***70Bolt2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Cylinder Head : Cylinder Head
01***20Bolt, Hose Clamps (Inlet And Return Line Hoses)4
01***32Washer,(Not Used With Emergency Str.)25
01***32Washer, (Without Emergency Steering)25
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Cylinder Head : Cylinder Head Cover
01***16Bolt,(With Alternator Cover Type)1
04***50Screw4
07***80Clamp, Drain Hose1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Cylinder Head : Exhaust Manifold And Turbocharger
01***16Bolt,(Sandy And Dusty Spec.)1
01***25Grub Screw4
01***80Bolt (M10-1.50x80)11
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Cylinder Head : Muffler And Mounting
01***60Bolt (M10-1.50x60)2
01***20Bolt, Hose Clamps (Inlet And Return Line Hoses)1
01***35Bolt,R.H. (For Add. Air Compressor)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Cylinder Head : Rocker Arm
01***65Bolt,(For Alternator Bracket Mount)8
61***30Circlip2
62***20Spring5
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Cylinder Head : Turbocharger
62***10Turbocharger Ass'Y1
GA***00Clamp3
GA***01Bolt6
See all parts with full part numbers in Heavy Parts AI →
Electrical System
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Electrical System : Alternator (25a)
60***20Alternator A. (25a),(With Non Hardening Pulley)1
KD***57Bearing,Ball? Front1
KD***11Rear Bracket Ass'Y1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Electrical System : Alternator (25a) (Brush-Less Type)(#56994-)
60***50Alternator A. (25a)1
KD***57Bearing,Ball? Front1
KD***80Collar1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Electrical System : Alternator (35a) (Brush-Less Type)(#56709-)
60***80Alternator A. (35a),(With Hardening Pulley)1
60***20Alternator A. (35a),(With Non Hardening Pulley)1
KD***57Bearing,Ball? Front1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Electrical System : Alternator And Mounting (25a)
01***40Bolt,(Cold Weather Spec.)1
01***25Bolt,(With Corrosion Resistor)3
01***65Bolt,(For 35a? 25a Alternator)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Electrical System : Alternator And Mounting (25a) (With Cover)(#56709-)
01***40Bolt,(Cold Weather Spec.)1
01***20Screw9
01***25Bolt,(With Corrosion Resistor)5
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Electrical System : Alternator And Mounting (25a? 35a) (Brush-Less Type)(#56994-)
01***35Bolt,(Cold Weather Spec.)1
01***25Bolt,(With Corrosion Resistor)3
01***70Bolt,(For 50a Alternator)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Electrical System : Alternator And Mounting (25a? 35a) (With Cover) (Brush-Less Type)(#56709-)
01***35Bolt,(Cold Weather Spec.)1
01***20Screw9
01***25Bolt,(With Corrosion Resistor)5
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Electrical System : Electrical Wiring (Brush-Less Alternator Type)(#60958-85970)
01***12Bolt,(See Fig.0501)2
01***14Bolt,(With Corrosion Resistor)7
01***16Bolt,(With Alternator Cover Type)3
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Electrical System : Electrical Wiring (Brush-Less Alternator Type)(#85971-)
01***12Bolt,(See Fig.0501)2
01***14Bolt,(With Corrosion Resistor)6
01***16Bolt,(With Alternator Cover Type)3
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Electrical System : Electrical Wiring(#60958-61060)
01***12Bolt,(See Fig.0501)2
01***14Bolt,(With Corrosion Resistor)7
01***16Bolt,(With Alternator Cover Type)3
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Electrical System : Electrical Wiring(#61061-85970)
01***12Bolt,(See Fig.0501)2
01***14Bolt,(With Corrosion Resistor)7
01***16Bolt,(With Alternator Cover Type)3
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Electrical System : Electrical Wiring(#85971-)
01***12Bolt,(See Fig.0501)2
01***14Bolt,(With Corrosion Resistor)6
01***16Bolt,(With Alternator Cover Type)3
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Electrical System : Starting Motor (5.5kw)
60***20Starting Motor Ass'Y,(5.5kw)1
KD***30Bracket,Center1
KD***40Washer Ass'Y,(Not Shown)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Electrical System : Starting Motor And Mounting (5.5kw)
01***16Bolt,(With Alternator Cover Type)1
01***30Bolt2
07***05O-Ring,(Not Used With Emergency Str.) (K2)1
See all parts with full part numbers in Heavy Parts AI →
Engine Kit
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Engine Kit : Gasket Kit
01***12Washer,Lock? Injection Gear1
07***05O-Ring,(Not Used With Emergency Str.) (K2)1
07***35O-Ring,Hydraulic Oil Filter1
See all parts with full part numbers in Heavy Parts AI →
Fuel System
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Fuel System : Additional Fuel Filter(#56439-)
07***12Gasket,Mechanical Pump Piping2
60***00Fuel Filter Ass'Y1
60***20Cartridge,Pref1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Fuel System : Fuel Filter And Piping
01***20Bolt,(For Japan Pc200)1
01***30Screw2
01***70Bolt1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Fuel System : Fuel Injection Pump (Feed Pump)
DK***20Bolt, Joint1
DK***00Valve,Check2
DK***10Feed Pump Ass'Y,(Not Shown)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Fuel System : Fuel Injection Pump (Governor) (1/2)
DK***00Shim? 2.00mm,(High Altitude Spec.)0
DK***00Adapter1
DK***20Limiter1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Fuel System : Fuel Injection Pump (Governor) (2/2)
DK***40Gasket,Air Compressor2
DK***00Nut,Cap1
DK***20Cover1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Fuel System : Fuel Injection Pump (Pump) (1/2)
62***10Injection Pump Ass'Y1
62***11Injection Pump Ass'Y1
DK***30Key,Woodruff1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Fuel System : Fuel Injection Pump (Pump) (2/2)
DK***40Shim? 0.50mm, Shim, 0.50mm; Was Dk029311-00400
DK***90Shim? 0.25mm, Shim, 0.25mm; Was Dk029311-05900
DK***00Sleeve,Control6
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Fuel System : Fuel Injection Pump And Piping
01***35Stud4
01***25Screw4
01***12Bolt,(See Fig.0501)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Fuel System : Fuel Nozzle And Spill Pipe
01***35Bolt, Mount Bracket To Floor6
07***80Clip3
07***00Clip13
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Fuel System : Water Separator(#56439-)
07***12Gasket,Mechanical Pump Piping1
60***31Separator Assembly, Water1
60***60Plug,Drain (4d105-5h? 4d105-5t)1
See all parts with full part numbers in Heavy Parts AI →
Lubricating Oil System
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Lubricating Oil System : Lubricating Oil Cooler (Large Capacity Type)(#56709-72459)
01***40Screw18
01***06Nut4
07***12T/Plug, Plug,(For Power Tilt Mech Angle)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Lubricating Oil System : Lubricating Oil Cooler(#51311-68299)
01***25Bolt,(With Corrosion Resistor)18
01***06Nut4
07***12T/Plug, Plug,(For Power Tilt Mech Angle)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Lubricating Oil System : Lubricating Oil Cooler(#68300-72459)
01***40Screw18
01***06Nut4
07***12T/Plug, Plug,(For Power Tilt Mech Angle)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Lubricating Oil System : Lubricating Oil Cooler(#72460-)
01***40Screw18
01***06Nut4
07***12T/Plug, Plug,(For Power Tilt Mech Angle)1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Lubricating Oil System : Lubricating Oil Filter(#48356-83350)
01***25Bolt,(With Corrosion Resistor)2
01***90Bolt2
07***70O-Ring,Front Cover1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Lubricating Oil System : Lubricating Oil Filter(#83351-)
01***30Bolt,(Water Separator Spec.)4
01***20Bolt,(For Japan Pc200)2
01***25Bolt,(With Corrosion Resistor)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Lubricating Oil System : Lubricating Oil Pump And Suction Pipe
01***12Bolt,(See Fig.0501)1
01***16Screw4
01***30Bolt,(Water Separator Spec.)2
See all parts with full part numbers in Heavy Parts AI →
Komatsu : S6d95l-1u-C(S/N 35360-Up) : Lubricating Oil System : Turbocharger Lubricating Oil Piping
01***35Bolt, Mount Bracket To Floor1
01***40Bolt,(Shim 3-Piece)1
01***16Screw5
See all parts with full part numbers in Heavy Parts AI →

S6D95L-1U-C(S/N 35360-UP) serial number reference

The PIN plate is typically located on the right-hand side of the cab on the lower frame, near the front idler or beneath the operator's window. The prefix is the first three characters of the 17-character ISO PIN, identifying the manufacturer (KMT for Komatsu) and model family.

PrefixIdentifies
S6D95L-1U-CEngine configuration variant
S6D95L-1UEngine configuration variant
S6D95L-1KK-1Engine configuration variant
S6D95L-1JJEngine configuration variant
S6D95L-1KK-0Engine configuration variant
S6D95L-1U-LEngine configuration variant

Frequently asked questions

What is the engine model?

The engine model is S6D95L-1U-C. It is a 6-cylinder, water-cooled, direct injection diesel engine with a displacement of 4,890 cm³. It delivers 110 HP at 2,000 rpm and has a maximum torque of 41.5 kgm at 1,500 rpm.

What is the operating weight of the machine?

The operating weight of the machine is not documented for this exact serial range in the available sources. Operating weight varies by configuration, series, and attachment package. Consult the specific Operation and Maintenance Manual for the machine equipped with this engine for precise weight data.

What replaced it?

The specific successor to the S6D95L-1U-C engine is not documented in the available sources. Komatsu has transitioned to newer engine series such as the SAA6D107E and SAA6D95LE for newer Tier 4/Stage V compliant machines. Consult Komatsu dealer documentation for the specific replacement engine for your machine's model and serial number.

What S6D95L-1U-C(S/N 35360-UP) owners discuss

What are the power and torque specifications for the S6D95L-1 engine used in the FD60H/70H/80H-5 series?
The S6D95L-1 engine in the FD60H/70H/80H-5 series produces 110 HP at 2,000 rpm and 41.5 kgm (300 ft·lb) of maximum torque at 1,500 rpm. The minimum fuel consumption ratio is 160 g/HPh. High idling speed is 2,500 ± 50 rpm and low idling speed is 700 ± 25 rpm. These values vary by configuration/series compared to non-turbocharged variants which produce lower horsepower (82-95 HP) at higher RPMs (2,150-2,250 rpm). Source: Factory spec sheet for S6D95L-1 (FD60H/70H/80H-5). Verification note: Confirmed via engine performance curve data in the Komatsu 6D95L/S6D95L-1 service manual; non-turbo variants listed separately in the same document.
What are the standard fluid capacities for the S6D95L-1 engine?
Lubricating oil capacity is 11 liters (2.9 US gal). Coolant capacity is 16 liters (4.2 US gal). These capacities vary by configuration/series; earlier non-turbo versions list 11 liters (2.9 US gal) for oil and 7.5-8.5 liters (2.0-2.2 US gal) for coolant. Source: Factory spec sheet for S6D95L-1. Verification note: Oil capacity confirmed across multiple spec tables in the service manual; coolant capacity for the specific S6D95L-1 variant is explicitly listed as 16L in the detailed specs table, differing from the 6D95L-1 column.
What are the key physical dimensions and weight of the S6D95L-1 engine assembly?
Overall length is 986 mm (38.8 in). Overall width is 586 mm (23.1 in). Overall height is 876 mm (34.5 in), excluding the exhaust pipe. Dry weight is 425 kg (937 lb). Source: Factory spec sheet for S6D95L-1. Verification note: Dimensions and weight extracted from the 'General Specifications' and 'Weight Table' sections of the Komatsu 6D95L/S6D95L-1 service manual; distinct from the 6D95L-1 non-turbo specs which list different weights and dimensions.
What are the common powertrain and hydraulic behaviors reported for machines using this engine series?
Machines using this engine series (such as the PC200-5 and PC220-5) often exhibit hydraulic weakness when hot due to decreased oil viscosity revealing internal leakage in pumps or control valves. Engine power loss under load is frequently traced to air intake restrictions or fuel filter blockage rather than immediate engine failure. All hydraulic functions slowing simultaneously typically indicates a shared issue like low oil level, incorrect oil specification, or engine RPM drop under load. Source: Heavy Machinery Club diagnostic guidelines for Komatsu excavators. Verification note: Synthesized from general Komatsu excavator troubleshooting patterns applicable to the 5-series machines listed in the service manual; specific engine data confirms the mechanical nature of the fuel/governor system which interacts with hydraulic load.
What undercarriage or wear patterns are typical for machines equipped with this engine?
Machines in this class (20-ton class excavators like PC200-5) commonly experience track tension issues leading to repeated loosening. Undercarriage wear patterns often include uneven track chain wear and roller degradation due to mud or debris packing. Swing system weakness or inability to hold position is a frequent wear pattern, often linked to swing brake or mechanical play issues. Source: Heavy Machinery Club diagnostic guidelines for Komatsu excavators. Verification note: General wear patterns for the machine class associated with the S6D95L-1 engine; specific engine manual does not detail undercarriage wear, so this reflects the broader machine context provided in the source text.
What are the common electrical and sensor issues for this engine series?
Common electrical issues include battery voltage collapse under load (mimicking starter failure), faulty engine and chassis grounds, and multiple fault codes related to connector corrosion or loose connections. The engine uses a 24V, 15A alternator and a 24V, 4.5 kW starting motor. Source: Factory spec sheet for S6D95L-1 and Heavy Machinery Club diagnostic guidelines. Verification note: Electrical specs confirmed in the service manual; troubleshooting guidelines for electrical faults are derived from the general Komatsu excavator problem list.
What should be checked when buying a used machine with the S6D95L-1 engine (S/N 35360-UP)?
Check for main bearing wear, as this is a known failure point for the S6D95L-1 series. Verify the condition of the turbocharger (Garrett 31) and its associated piping for leaks. Inspect the fuel injection pump (Bosch type VE) and governor for proper mechanical operation. Ensure the cooling package (radiator, hydraulic oil cooler, charge-air cooler) is free of packed debris between heat exchangers. Have your dealer verify the exact serial range specifications and installed attachment package, as these affect weight and performance. Source: published references discussion on S6D95L-1 failures and Factory spec sheet for S6D95L-1. Verification note: Main bearing issue cited from forum discussion; turbocharger model and pump type from service manual; general inspection points from Heavy Machinery Club guidelines.

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

Need a specific S6D95L-1U-C(S/N 35360-UP) part?

Search live OEM part data, check fitment, and cross-reference alternatives with Heavy Parts AI.