Komatsu S6D105-1X(S/N 63244-UP)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu S6D105-1X (S/N 63244-UP) is a six-cylinder, turbocharged diesel engine belonging to the S6D105 series, primarily powering the PC200-3 and PC220-3 crawler excavator families. These machines are classified as mid-size heavy excavators, typically operating in the 20-ton weight class, with production spanning the late 1980s through the early 2000s. The S6D105-1X succeeded earlier S6D105 variants and preceded the SAA6D102E series engines found in later PC200-7 and PC220-8 models. Configurations offered include mechanical fuel injection systems for the earlier serial ranges and electronic control modules for later iterations, supporting both standard and long-reach boom applications.
Across the S6D105 generation, Komatsu transitioned from purely mechanical fuel delivery to electronically controlled injection to meet evolving emissions standards and improve fuel efficiency. The S6D105-1X remains critical in the used and parts market because it serves as the heart of the highly durable PC200-3 and PC220-3 platforms, which are still widely active in earthmoving and demolition. Its mechanical simplicity in early serials allows for cost-effective rebuild, while later electronic versions offer diagnostic capabilities that extend their operational life. The engine's robust cast-iron block and proven turbocharging design make it a preferred candidate for remanufacturing and cross-application swaps in older Komatsu fleets.
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 S6D105-1X(S/N 63244-UP) specifications
Engine
| Model | S6D105-1X |
| Series | S6D105-1 |
| Displacement | 6.5 L (396 cu. in.) |
| Cylinders | 6 |
| Aspiration | Turbocharged |
| Fuel System | Direct injection, mechanical fuel system |
| Power Output | Not documented for this exact serial range — verify with your dealer |
| Emissions Tier | Not documented for this exact serial range — verify with your dealer |
Weights
| Operating Weight | Not documented for this exact serial range — verify with your dealer |
| Shipping Weight | Not documented for this exact serial range — verify with your dealer |
| Ground Pressure | Not documented for this exact serial range — verify with your dealer |
Dimensions
| Transport Length | Not documented for this exact serial range — verify with your dealer |
| Transport Width | Not documented for this exact serial range — verify with your dealer |
| Transport Height | Not documented for this exact serial range — verify with your dealer |
| Track Gauge | Not documented for this exact serial range — verify with your dealer |
| Ground Clearance | Not documented for this exact serial range — verify with your dealer |
Performance
| Travel Speed | Not documented for this exact serial range — verify with your dealer |
| Gradeability | Not documented for this exact serial range — verify with your dealer |
| Digging/Loading Performance | Not documented for this exact serial range — verify with your dealer |
Service capacities (summary)
| Engine Oil Refill Capacity | Not documented for this exact serial range — verify with your dealer |
| Cooling System Capacity | Not documented for this exact serial range — verify with your dealer |
| Hydraulic System Capacity | Not documented for this exact serial range — verify with your dealer |
| Fuel Tank Capacity | Not documented for this exact serial range — verify with your dealer |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
Komatsu S6D105-1X(S/N 63244-UP) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
Servicing the S6D105-1X(S/N 63244-UP) beyond the schedule
Predictive Maintenance & Fluid Analysis
Utilize KOWA fluid analysis at every 500-hour interval to monitor wear metals and contamination in the S6D105-1X engine. Track iron and copper levels in the oil to detect piston ring or bearing wear specific to this turbocharged unit. Check coolant SCA concentration at 500 hours to prevent cavitation erosion in the cylinder liners. Monitor hydraulic oil particle count to protect the high-pressure injection pump. Analyze fuel samples for water content to prevent injector corrosion. Use KOMTRAX telematics data to correlate load frequency with fluid degradation rates for optimized change intervals.
Corrective & Common Repairs
Address common S6D105-1X failures by inspecting the turbocharger shaft play and housing cracks during 1000-hour services. Replace worn injector O-rings if black smoke or excessive oil consumption occurs. Check the fuel lift pump diaphragm for leaks that cause hard starting. Inspect the water pump impeller for erosion if coolant flow drops. Tighten exhaust manifold bolts to prevent turbocharger housing distortion. Replace cracked high-pressure fuel lines if pressure drops affect engine power. Verify ECM sensor connections for fault codes related to intake air temperature or pressure.
Overhaul & Rebuild Points
Plan inframe overhauls for the S6D105-1X when compression drops below specification or oil consumption exceeds limits. Measure cylinder bore wear and replace pistons and rings if out of tolerance. Inspect the crankshaft main and rod bearings for scoring or excessive clearance. Recondition the cylinder head, checking valve seats and guides for wear. Replace the turbocharger if shaft end-play exceeds limits or blades are damaged. Inspect the engine block for cracks around the coolant passages. Use genuine gasket kits to ensure proper sealing of the high-pressure fuel system.
Seasonal & Environment Servicing
Adjust coolant mixture for freezing temperatures to protect the S6D105-1X block and radiator. Use lower viscosity engine oil in cold starts to ensure proper lubrication of the turbocharger bearings. Clean the radiator and oil cooler fins frequently in dusty environments to prevent overheating. Check the air filter restriction indicator more often in high-dust conditions to prevent engine wear. Inspect the fuel system for water accumulation in humid or wet climates. Verify battery charge status in cold weather to ensure reliable starting. Protect hydraulic hoses from UV degradation in sunny conditions.
S6D105-1X(S/N 63244-UP) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 07281-00197 | Clamp,(With Pre-Fuel Filter) | Fuel system service | Check fitment → |
| 600-311-9100 | Fuel Filter Ass'Y | Fuel system service | Check fitment → |
| 600-311-8221 | Cartridge,Engine Fuel Filter | Fuel system service | Check fitment → |
| 6136-71-6120 | Cartridge,Engine Fuel Filter | Fuel system service | Check fitment → |
| 6136-72-6100 | Fuel Filter Ass'Y | Fuel system service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
S6D105-1X(S/N 63244-UP) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| CA115 | Engine crankshaft speed sensor and backup speed sensor failure | Faulty speed sensor, broken wiring harness, or corroded connector at the pin connector | Replace the speed sensor and verify voltage at the pin connector |
| CA111 | Internal engine controller fault | Electronic Control Module (ECM) internal failure | Replace or reprogram the ECM |
| CA451 | Common rail pressure sensor feedback value too high | Malfunction in the rail pressure sensor or actual overpressure condition | Diagnose the fuel rail pressure sensor or check pump lines |
| CA452 | Common rail pressure sensor feedback value too low | Fuel rail pressure sensor error or low pressure condition | Diagnose the fuel rail pressure sensor or check pump lines |
| CA122 | Intake air pressure sensor feedback voltage too high | Intake pressure sensor malfunction or wiring issue | Verify the intake pressure sensor and wiring |
| CA123 | Intake air pressure sensor feedback voltage too low | Sensor short or airflow restriction | Check for a sensor short or an airflow restriction |
| CA234 | Engine overspeed | Throttle calibration error, engine load cycle issue, or operator misuse | Verify throttle calibration, engine load cycle, or operator misuse |
| CA441 | Battery voltage too low | Weak battery or alternator failure | Replace the alternator or battery; check the voltage regulator |
| CA442 | Battery voltage too high | Alternator overcharging or voltage regulator failure | Replace the alternator or battery; check the voltage regulator |
| AA10NX | Air cleaner clogging | Clogged air filter element | Replace the air filter |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
S6D105-1X(S/N 63244-UP) attachments & work tools
Excavator Attachments
The S6D105-1X(S/N 63244-UP) engine is primarily associated with the PC200-3 and PC200LC-3 crawler excavator models. Typical work tools for this class include standard digging buckets, trenching buckets, and heavy-duty rock buckets. Coupler systems are standard for these excavators, allowing for quick tool changes, though specific hydraulic kit requirements vary by configuration/series.
Wheel Loader Attachments
This engine series is also used in the WA300-1 and WA320-1 wheel loaders. Work tools for these machines typically include general-purpose buckets, light material buckets, and rock buckets. Mounting systems are standard loader couplers, and hydraulic arrangements for auxiliary circuits depend on the specific machine configuration.
Motor Grader Attachments
The S6D105-1X engine is utilized in GD521A-1, GD521R-1, and GD523A-1 motor graders. Standard work tools include moldboards, scarifiers, and side shifters. Factory configurations for these graders include specific guarding options for the undercarriage and blade mounting points, varying by the specific model series.
Engine Guarding and Options
Factory options for machines equipped with the S6D105-1X(S/N 63244-UP) engine include heavy-duty air cleaners and specific radiator configurations for high-temperature operation. Guarding options often include stone guards for the undercarriage and engine compartment protection, depending on the application environment.
All S6D105-1X(S/N 63244-UP) assemblies by section
Every catalogued assembly group for the Komatsu S6D105-1X(S/N 63244-UP). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Accessory
Komatsu : S6d105-1x(S/N 63244-Up) : Accessory : Air Compressor (Except Japan)
| 61***12 | Air Compressor Ass'Y | 1 |
| DK***00 | Cylinder | 1 |
| DK***90 | Washer,Air Compressor | 2 |
Komatsu : S6d105-1x(S/N 63244-Up) : Accessory : Air Compressor Piping (Except Japan)
| 07***16 | Gasket,Air Compressor Piping | 1 |
| 07***89 | Clamp,(For Japan) | 2 |
| 61***30 | Elbow,(For Pc200) | 1 |
Cooling System
Komatsu : S6d105-1x(S/N 63244-Up) : Cooling System : Corrosion Resistor And Piping
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***29 | Washer,Spring (Cold Weather Spec.) | 4 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 4 |
Komatsu : S6d105-1x(S/N 63244-Up) : Cooling System : Water Pump And Cooling Fan
| 01***16 | Bolt,(For Slag Handling) | 2 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 3 |
| 01***55 | Bolt,(For Suction? Reversible Fan) | 2 |
Cylinder Block
Komatsu : S6d105-1x(S/N 63244-Up) : Cylinder Block : Camshaft And Tappet
| 01***25 | Bolt,(Without Auto Priming System) | 2 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 2 |
| 01***16 | Washer,(For Shipping) | 2 |
Komatsu : S6d105-1x(S/N 63244-Up) : Cylinder Block : Crankshaft
| 01***25 | Bolt - Rear Guard Mounting | 6 |
| 01***45 | Bolt,Nylock | 1 |
| 01***36 | Washer,Radio Controlled Slag Handling | 6 |
Komatsu : S6d105-1x(S/N 63244-Up) : Cylinder Block : Crankshaft (Wiht Air Conditioner)
| 01***70 | Bolt, Heater Hose Clip | 6 |
| 01***45 | Bolt,Nylock | 1 |
| 01***50 | Bolt | 6 |
Komatsu : S6d105-1x(S/N 63244-Up) : Cylinder Block : Cylinder Block
| 01***30 | Bolt,(For France Noise Suppression) | 3 |
| 01***45 | Bolt,(For Suction? Reversible Fan) | 1 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 4 |
Komatsu : S6d105-1x(S/N 63244-Up) : Cylinder Block : Flywheel And Flywheel Housing (Key Stop Type)
| 01***40 | Bolt,(Dust And Dirt Protection) | 9 |
| 01***45 | Bolt,(Cold Terrain Spec.) | 8 |
| 01***55 | Bolt,(For France Noise Suppression) | 4 |
Komatsu : S6d105-1x(S/N 63244-Up) : Cylinder Block : Front Cover And Gear
| 01***22 | Bolt,(Cold Terrain Spec.) | 4 |
| 01***25 | Bolt,(Without Auto Priming System) | 4 |
| 01***60 | Bolt,(Without Alternator Bracket) | 10 |
Komatsu : S6d105-1x(S/N 63244-Up) : Cylinder Block : Oil Pan
| 01***22 | Bolt,(Cold Terrain Spec.) | 29 |
| 01***25 | Bolt,(Without Auto Priming System) | 8 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 1 |
Komatsu : S6d105-1x(S/N 63244-Up) : Cylinder Block : Oil Pan (Cold Terrain Spec.)
| 01***22 | Bolt,(Cold Terrain Spec.) | 29 |
| 01***25 | Bolt,(Without Auto Priming System) | 8 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 1 |
Komatsu : S6d105-1x(S/N 63244-Up) : Cylinder Block : Piston And Connecting Rod
| 04***18 | Ring, Retaining | 2 |
| 61***40 | Crank Pin Metal A | 6 |
| 61***00 | Connecting Rod Ass'Y,(B) | 6 |
Cylinder Head
Komatsu : S6d105-1x(S/N 63244-Up) : Cylinder Head : Air Cleaner And Mounting
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***55 | Bolt,(For Suction? Reversible Fan) | 4 |
| 01***08 | Nut,R.H. Thread | 6 |
Komatsu : S6d105-1x(S/N 63244-Up) : Cylinder Head : Air Intake Manifold And Connection
| 01***16 | Bolt (Welded) | 2 |
| 01***20 | Bolt | 2 |
| 01***50 | Bolt,(For Trimming Dozer) | 2 |
Komatsu : S6d105-1x(S/N 63244-Up) : Cylinder Head : Cylinder Head
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 2 |
| 01***16 | Washer,Radio Controlled Slag Handling | 2 |
Komatsu : S6d105-1x(S/N 63244-Up) : Cylinder Head : Cylinder Head Cover(#63244-78029)
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 2 |
| 02***22 | Bolt | 3 |
| 02***22 | Bolt | 2 |
Komatsu : S6d105-1x(S/N 63244-Up) : Cylinder Head : Cylinder Head Cover(#78030-)
| 07***23 | Clamp - Hose | 1 |
| 07***00 | Clip | 1 |
| 07***30 | Clip | 1 |
Komatsu : S6d105-1x(S/N 63244-Up) : Cylinder Head : Exhaust Manifold And Turbocharger
| 01***60 | Bolt (M10-1.50x60) | 1 |
| 01***00 | Bolt (M10-1.50x100) | 11 |
| 01***15 | Bolt | 2 |
Komatsu : S6d105-1x(S/N 63244-Up) : Cylinder Head : Muffler And Mounting
| 01***30 | Bolt,(For France Noise Suppression) | 4 |
| 01***40 | Bolt,(Dust And Dirt Protection) | 4 |
| 01***45 | Bolt,(For Suction? Reversible Fan) | 4 |
Komatsu : S6d105-1x(S/N 63244-Up) : Cylinder Head : Rocker Arm
| 01***80 | Bolt,(Shim 5 Pieces Over) | 2 |
| 01***06 | Nut, Regular Hexagon (M8-1.25) | 12 |
| 01***36 | Washer,Radio Controlled Slag Handling | 6 |
Komatsu : S6d105-1x(S/N 63244-Up) : Cylinder Head : Turbocharger (Except Japan)
| 61***00 | Turbocharger Ass'Y,(T04b-59) | 1 |
| GA***00 | Clamp | 3 |
| GA***01 | Bolt | 6 |
Electrical System
Komatsu : S6d105-1x(S/N 63244-Up) : Electrical System : Alternator (25a)
| 60***20 | Alternator A. (25a),(With Non Hardening Pulley) | 1 |
| 60***30 | Alternator A. (25a),(With Hardening Pulley) | 1 |
| KD***57 | Bearing,Ball? Front | 1 |
Komatsu : S6d105-1x(S/N 63244-Up) : Electrical System : Alternator (35a)
| 60***10 | Alternator A. (35a),(With Non Hardening Pulley) | 1 |
| 60***40 | Alternator A. (35a),(With Hardening Pulley) | 1 |
| KD***57 | Bearing,Ball? Front | 1 |
Komatsu : S6d105-1x(S/N 63244-Up) : Electrical System : Alternator (50a) (With Hardening Pulley)
| 60***90 | Alternator A. (50a),(With Hardening Pulley) | 1 |
| SD***X0 | Washer | 1 |
| SD***X0 | Fan | 1 |
Komatsu : S6d105-1x(S/N 63244-Up) : Electrical System : Alternator (50a) (With Non Hardening Pulley)
| 60***90 | Alternator A. (50a),(With Non Hardening Pulley) | 1 |
| SD***X0 | Washer | 1 |
| SD***X0 | Fan | 1 |
Komatsu : S6d105-1x(S/N 63244-Up) : Electrical System : Alternator (50a) (With Non Hardening Pulley)(#63244-73961)
| 60***40 | Alternator A. (50a),(With Non Hardening Pulley) | 1 |
| SD***X0 | Coil Assembly | 1 |
| SD***X0 | Washer | 1 |
Komatsu : S6d105-1x(S/N 63244-Up) : Electrical System : Alternator (75a) (With Non Hardening Pulley)
| 60***40 | Alternator A. (75a),(With Non Hardening Pulley) | 1 |
| SD***X0 | Coil Assembly | 1 |
| SD***X0 | Bracket, Rear | 1 |
Komatsu : S6d105-1x(S/N 63244-Up) : Electrical System : Alternator And Mounting (25a? 35a? 50a? 75a) (Bracket Mounting Type)
| 01***40 | Bolt,(Dust And Dirt Protection) | 1 |
| 01***70 | Bolt,(With Wear Guard) | 1 |
| 01***35 | Bolt,(Cold Weather Spec.) | 1 |
Komatsu : S6d105-1x(S/N 63244-Up) : Electrical System : Alternator And Mounting (50a) (Bracket Mounting Type)
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 1 |
| 01***70 | Bolt,(With Wear Guard) | 1 |
| 01***35 | Bolt,(Cold Weather Spec.) | 1 |
Komatsu : S6d105-1x(S/N 63244-Up) : Electrical System : Heater Switch And Heater Signal
| 60***70 | Switch,Air Intake Heater | 1 |
| 60***71 | Signal,Signal | 1 |
Komatsu : S6d105-1x(S/N 63244-Up) : Electrical System : Starting Motor (5.5kw)
| 60***90 | Starting Motor Ass'Y,(5.5kw) | 1 |
| KD***30 | Bracket,Center | 1 |
| KD***50 | Clutch Ass'Y,Over Running | 1 |
Komatsu : S6d105-1x(S/N 63244-Up) : Electrical System : Starting Motor (7.5kw)(#.-)
| 60***50 | Starting Motor Ass'Y,(7.5kw) | 1 |
| KD***60 | Shift Lever Assembly | 1 |
| KD***40 | Spring,Spring | 4 |
Komatsu : S6d105-1x(S/N 63244-Up) : Electrical System : Starting Motor (7.5kw)(#63244-.)
| 60***50 | Starting Motor Ass'Y,(7.5kw) (S6d105-1x) | 1 |
| KD***20 | Magnetic Switch Assembly | 1 |
| KD***40 | Spring,Spring | 4 |
Komatsu : S6d105-1x(S/N 63244-Up) : Electrical System : Starting Motor And Mounting (5.5kw? 7.5kw)
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 3 |
| 01***36 | Washer,Radio Controlled Slag Handling | 3 |
| 07***00 | O-Ring,(F4350-65a1 -5 ) | 1 |
Engine Kit
Komatsu : S6d105-1x(S/N 63244-Up) : Engine Kit : Gasket Kit
| 07***18 | O-Ring,(See Fig.1601-29?1602-17) | 1 |
| 07***70 | O-Ring,(For Intake Air Cover) | 1 |
| 07***00 | O-Ring,(F4350-65a1 -5 ) | 1 |
Fuel System
Komatsu : S6d105-1x(S/N 63244-Up) : Fuel System : Additional Fuel Filter
| 07***12 | Gasket,Mechanical Pump Piping | 2 |
| 60***00 | Fuel Filter Ass'Y | 1 |
| 60***20 | Cartridge,Pref | 1 |
Komatsu : S6d105-1x(S/N 63244-Up) : Fuel System : Fuel Filter And Piping
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 2 |
| 01***16 | Washer,Radio Controlled Slag Handling | 2 |
Komatsu : S6d105-1x(S/N 63244-Up) : Fuel System : Fuel Injection Pump (Coupling)
| DK***00 | Bolt | 1 |
| DK***00 | Washer,Lock | 2 |
| DK***00 | Coupling,Cross | 1 |
Komatsu : S6d105-1x(S/N 63244-Up) : Fuel System : Fuel Injection Pump (Feed Pump)
| DK***20 | Bolt, Joint | 1 |
| DK***20 | Pump,Priming | 1 |
| DK***20 | Housing | 1 |
Komatsu : S6d105-1x(S/N 63244-Up) : Fuel System : Fuel Injection Pump (Governor) (1/2)
| DK***30 | Governor Ass'Y | 1 |
| DK***20 | Guide Lever Ass'Y | 1 |
| DK***00 | Shim? 2.00mm,(High Altitude Spec.) | 0 |
Komatsu : S6d105-1x(S/N 63244-Up) : Fuel System : Fuel Injection Pump (Governor) (2/2)
| DK***00 | Spring,Governor | 1 |
| DK***80 | Shim? 0.5mm | 0 |
| DK***00 | Washer,Spring | 1 |
Komatsu : S6d105-1x(S/N 63244-Up) : Fuel System : Fuel Injection Pump (Pump)
| 61***10 | Injection Pump Ass'Y | 1 |
| DK***10 | Washer,Spring | 1 |
| DK***30 | Bearing | 0 |
Komatsu : S6d105-1x(S/N 63244-Up) : Fuel System : Fuel Injection Pump And Piping
| 01***70 | Bolt | 4 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 1 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 1 |
Komatsu : S6d105-1x(S/N 63244-Up) : Fuel System : Fuel Injection Pump And Piping (With Air Compressor) (Except Japan)
| 01***70 | Bolt | 4 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 1 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 1 |
Komatsu : S6d105-1x(S/N 63244-Up) : Fuel System : Fuel Nozzle And Spill Pipe
Komatsu : S6d105-1x(S/N 63244-Up) : Fuel System : Solenoid And Mounting (Key Stop Type)
| 01***20 | Bolt | 4 |
| 01***50 | Bolt - Torque Converter Totransmission Mounting | 2 |
| 01***03 | Nut? L.H. Thread,L.H. Thread | 1 |
Komatsu : S6d105-1x(S/N 63244-Up) : Fuel System : Water Separator
| 07***60 | O-Ring,(For Pc750?800?1800) (A2610) | 1 |
| 60***00 | Water Separator A.,(4d105-5h? 4d105-5t) | 1 |
| 60***60 | Plug,Drain (4d105-5h? 4d105-5t) | 1 |
Lubricating Oil System
Komatsu : S6d105-1x(S/N 63244-Up) : Lubricating Oil System : Lubricating Oil Cooler
| 01***25 | Bolt,(Without Auto Priming System) | 5 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 3 |
| 01***35 | Bolt,(Without Auto Priming System) | 16 |
Komatsu : S6d105-1x(S/N 63244-Up) : Lubricating Oil System : Lubricating Oil Cooler (Cold Terrain Spec.)
| 01***25 | Bolt,(Without Auto Priming System) | 7 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 3 |
| 01***35 | Bolt,(Without Auto Priming System) | 12 |
Komatsu : S6d105-1x(S/N 63244-Up) : Lubricating Oil System : Lubricating Oil Filter And Mounting
| 01***70 | Bolt | 1 |
| 01***16 | Bolt,(Sandy And Dusty Spec.) | 2 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 3 |
Komatsu : S6d105-1x(S/N 63244-Up) : Lubricating Oil System : Lubricating Oil Piping
| 01***16 | Bolt,(For Slag Handling) | 2 |
| 01***95 | Bolt | 1 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 2 |
Komatsu : S6d105-1x(S/N 63244-Up) : Lubricating Oil System : Lubricating Oil Pump And Suction Pipe
| 01***25 | Bolt,(Without Auto Priming System) | 3 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 1 |
| 01***45 | Bolt,(S6d155-4b) | 1 |
Komatsu : S6d105-1x(S/N 63244-Up) : Lubricating Oil System : Turbocharger Lubricating Oil Piping
| 01***22 | Bolt,(Cold Terrain Spec.) | 2 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 2 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 2 |
S6D105-1X(S/N 63244-UP) serial number reference
The PIN plate is riveted to the right-hand side of the cab on the lower frame, typically just behind the front idler or beneath the operator's window. The prefix is the first character of the 17-character ISO PIN found on the emissions/export plate.
| Prefix | Identifies | Notes |
|---|---|---|
| K | PC220-2 / PC220LC-2 | S6D105-1G engine. Serial range 11001-Up. Source: published references Equipment Guide. |
| S | PC220-1 / PC220-2 / PC220LC-2 / PC220-3 / PC220LC-3 | S6D105-1 engine. Serial range 50001-Up. Source: published references / published references 6D105 Series Repair Manual. |
Frequently asked questions
What engine does the Komatsu S6D105-1X (S/N 63244-UP) use?
It uses the Komatsu S6D105-1X, a six-cylinder, turbocharged, direct-injection diesel engine. This engine powers the PC200-3 and PC220-3 excavator series.
What is the operating weight of the machines powered by this engine?
The operating weight varies by configuration and attachment. For the PC200-3 and PC220-3 excavators, the weight typically ranges from 19,000 kg to 22,000 kg (41,885 lb to 48,503 lb) depending on the boom, stick, and counterweight setup.
What replaced the S6D105-1X engine in Komatsu excavators?
The S6D105-1X was succeeded by the SAA6D102E series engines in later Komatsu excavator generations, such as the PC200-7 and PC220-8, to meet stricter emissions regulations and improve fuel efficiency.
What S6D105-1X(S/N 63244-UP) owners discuss
What are the typical powertrain and hydraulic behaviors associated with the Komatsu S6D105-1X engine series?
What undercarriage and wear patterns are typical for machines using the S6D105-1X engine?
What are the known engine quirks and performance issues for the S6D105-1X series?
What are the common electrical and sensor issues reported for this engine platform?
What should be checked when buying a used machine with the S6D105-1X(S/N 63244-UP) engine?
What are the fluid specifications and capacities for the S6D105-1X engine?
What is the critical safety fix regarding the oil filter warning light?
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
Need a specific S6D105-1X(S/N 63244-UP) part?
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