Komatsu 6D95L-1B(S/N 10001-UP)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu 6D95L-1 is a 4.89-liter, six-cylinder inline diesel engine designed for mid-size construction applications. It powers the FD35/40/45 series of compact wheel loaders and the SD23/25-3 mini excavators. The engine delivers between 82 and 95 flywheel horsepower depending on the specific machine configuration and governor settings, with a maximum torque of 28 to 32 kgm. Production years span the late 1990s through the 2010s, serving as a predecessor to the SAA4D95LE series in newer Komatsu lines. Configurations include distributor-type and in-line type fuel pumps, with dry weights ranging from 345 to 425 kg depending on the specific variant and accessories.
Across its generations, the 6D95L-1 evolved from mechanical Bosch governors to more refined fuel delivery systems, adapting to Tier 1 and Tier 2 emissions standards. The machine matters in the used and parts market because of its widespread use in compact loaders and excavators, which are high-volume machines with significant aftermarket support. The engine's simple mechanical design and lack of complex emissions aftertreatment make it a preferred candidate for rebuild and conversions in older equipment, ensuring steady demand for core components and service manuals.
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 6D95L-1B(S/N 10001-UP) specifications
Engine
| Model | 6D95L-1 |
| Configuration | 6-cylinder in-line, turbocharged (S6D95L-1 variant includes aftercooler) |
| Displacement | 4.890 L (298.5 cu in) |
| Bore x Stroke | 95 mm x 115 mm (3.7 in x 4.5 in) |
| Gross Power | 82 HP (61 kW) @ 2,150 rpm (FD35/40/45 series); 90 HP (67 kW) @ 2,250 rpm (FD50/60/70-5 series); 95 HP (71 kW) @ 2,250 rpm (FD50/60/70-6 series) |
| Net Power | 82 HP (61 kW) @ 2,150 rpm (FD35/40/45 series); 90 HP (67 kW) @ 2,250 rpm (FD50/60/70-5 series); 95 HP (71 kW) @ 2,250 rpm (FD50/60/70-6 series) |
| Maximum Torque | 28 kg·m (203 ft·lbf) @ 1,500 rpm (FD35/40/45 series); 30 kg·m (217 ft·lbf) @ 1,500 rpm (FD50/60/70-5 series); 32 kg·m (231 ft·lbf) @ 1,500 rpm (FD50/60/70-6 series) |
| Emissions Tier | Tier 1 / Stage II |
Weights
| Engine Dry Weight | 360–370 kg (794–816 lb) |
Dimensions
| Overall Length | 983–986 mm (38.7–38.8 in) |
| Overall Width | 586–637 mm (23.1–25.1 in) |
| Overall Height | 809–876 mm (31.9–34.5 in) |
Performance
| High Idle Speed | 2,200–2,500 rpm (varies by configuration) |
| Low Idle Speed | 700 rpm ± 25 |
| Minimum Fuel Consumption | 160 g/HPh |
Service capacities (summary)
| Lubricating Oil Capacity | 11–13 L (2.9–3.4 gal) |
| Coolant Capacity | 7.5–18 L (2.0–4.8 gal) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
Komatsu 6D95L-1B(S/N 10001-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 6D95L-1B(S/N 10001-UP) beyond the schedule
Predictive Maintenance & Fluid Analysis
Utilize KOWA oil analysis at every 500-hour interval to monitor wear metals like iron and copper, indicating piston ring or bearing wear. Check coolant SCA levels at 500 hours to prevent liner cavitation in the 6D95L-1's wet sleeve design. Monitor hydraulic oil particle counts at 1,000 hours to detect pump wear early. Track fuel dilution and soot levels in the engine oil to assess combustion efficiency and filter loading. Use KOMTRAX telematics data to correlate high load hours with fluid degradation rates for optimized change intervals.
Corrective & Common Repairs
Address hard starting by inspecting the Bosch VE distributor pump for internal wear or air leaks in the fuel lines. Replace worn injector nozzles if black smoke or excessive fuel consumption occurs. Check the mechanical all-speed governor for sluggish response or hunting at idle. Inspect the water pump for coolant leaks around the weep hole, a common failure point. Verify alternator output if electrical systems show voltage drops, as the 15A or 25A units can fail under high accessory loads.
Overhaul & Rebuild Points
Plan a major overhaul when compression drops below specification or oil consumption exceeds 1 liter per 10 hours. Measure cylinder bore wear and replace liners if out of tolerance. Inspect the crankshaft journals for scoring and check main bearing clearances. Replace the timing gear set if chain stretch or gear tooth wear is evident. Rebuild the fuel injection pump if fuel delivery rates are inconsistent. Ensure all gaskets and seals are replaced during reassembly to prevent coolant and oil leaks.
Seasonal & Environment Servicing
In cold climates, use lower viscosity engine oil and ensure the coolant mixture provides adequate freeze protection. Check the air filter more frequently in dusty environments, cleaning the outer element at 1,000 hours and replacing it at 2,000 hours. In sandy conditions, inspect the turbocharger inlet for sand ingestion damage. Monitor the radiator and oil cooler fins for debris buildup, cleaning them regularly to prevent overheating. Adjust track tension in muddy conditions to prevent excessive material buildup and undercarriage wear.
6D95L-1B(S/N 10001-UP) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 07281-00197 | Clamp,(With Pre-Fuel Filter) | Fuel system service | Check fitment → |
| 600-311-1190 | Plate? Caution,Fuel Filter | Fuel system service | Check fitment → |
| 600-311-6220 | Cartridge,Fuel Filter | Fuel system service | Check fitment → |
| 600-311-9600 | Fuel Filter Ass'Y | Fuel system service | Check fitment → |
| 07000-02135 | O-Ring,Hydraulic Oil Filter | Hydraulic service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
6D95L-1B(S/N 10001-UP) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| CA115 | Engine crankshaft speed sensor failure | Broken sensor, wiring issue, or connector corrosion | Replace the speed sensor and verify voltage at the pin connector |
| CA111 | Internal engine controller fault | ECM internal abnormality | Replace or reprogram the ECM |
| CA451 | Common rail pressure sensor feedback value too high | Malfunction in the rail sensor or actual overpressure condition | Diagnose the fuel rail pressure sensor or pump lines |
| CA234 | Engine overspeed | Throttle calibration error, engine load cycle issue, or operator misuse | Verify throttle calibration and engine load cycle |
| CA441 | Battery voltage too low | Alternator or battery failure; voltage regulator issue | Replace the alternator or battery; check the voltage regulator |
| AA10NX | Air cleaner clogging | Blocked air filter element | Replace the air filter |
| CA122 | Intake air pressure high voltage | Intake pressure sensor malfunction or wiring issue | Verify the intake pressure sensor and wiring |
| CA123 | Intake air pressure low voltage | Sensor short or airflow restriction | Check for a sensor short or an airflow restriction |
| CA153 | Intake air temperature sensor high error | IAT sensor malfunction | Replace or test the IAT sensor |
| CA428 | Fuel moisture sensor invalid voltage | Fuel supply contamination or sensor harness issue | Ensure a clean fuel supply and check the moisture sensor harness |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
6D95L-1B(S/N 10001-UP) attachments & work tools
Excavator Attachments
The 6D95L-1B engine (S/N 10001-Up) powers the PC120-5 excavator series. Typical bucket capacities for this class range from 0.3 to 0.6 cubic meters (0.4 to 0.8 cubic yards). Coupler systems vary by configuration/series; standard quick couplers are factory options for rapid tool changes. Hydraulic kit arrangements depend on the specific PC120-5 sub-model and required auxiliary circuit flow.
Dozer Attachments
The 6D95L-1B engine is not listed for the D37E-2 or D37P-2 dozer series in the provided equipment guide; those models use the 6D95L-1BB engine. Data for dozer blade configurations and guarding options for the 6D95L-1B engine is not documented in the source text.
Grader Attachments
The 6D95L-1B engine is not explicitly linked to a grader model in the provided equipment guide. The PC120-5 excavator is the primary machine type associated with this engine serial range in the source data. Blade and moldboard specifications for graders are not documented for this engine.
All 6D95L-1B(S/N 10001-UP) assemblies by section
Every catalogued assembly group for the Komatsu 6D95L-1B(S/N 10001-UP). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Cooling System
Komatsu : 6d95l-1b(S/N 10001-Up) : Cooling System : Corrosion Resistor And Piping
| 01***14 | Bolt,(With Corrosion Resistor) | 3 |
| 01***20 | Bolt,(For Japan Pc200) | 2 |
| 01***40 | Bolt | 2 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Cooling System : Water Pump And Cooling Fan(#10001-21726)
| 01***16 | Screw | 5 |
| 01***20 | Screw | 2 |
| 01***30 | Bolt,(Water Separator Spec.) | 6 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Cooling System : Water Pump And Cooling Fan(#21727-)
| 01***16 | Screw | 5 |
| 01***20 | Screw | 6 |
| 01***35 | Screw | 6 |
Cylinder Block
Komatsu : 6d95l-1b(S/N 10001-Up) : Cylinder Block : Camshaft And Tappet(#10001-10008)
| 01***20 | Screw | 2 |
| 04***16 | Fitting Wedge | 1 |
| 61***30 | Plate,Thrust | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Cylinder Block : Camshaft And Tappet(#10009-)
| 01***20 | Screw | 2 |
| 04***16 | Fitting Wedge | 1 |
| 62***10 | Tappet | 12 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Cylinder Block : Crankshaft
| 01***45 | Bolt,Nylock | 1 |
| 01***16 | Bolt,(With Alternator Cover Type) | 6 |
| 61***11 | Bolt,Nylock (K2) | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Cylinder Block : Cylinder Block
| 01***16 | Screw | 5 |
| 01***06 | Nut | 1 |
| 01***06 | Nut | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Cylinder Block : Flywheel And Flywheel Housing(#10001-21726)
| 01***30 | Bolt | 6 |
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 11 |
| 04***18 | Bolt, Eye | 2 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Cylinder Block : Flywheel And Flywheel Housing(#21727-31853)
| 01***30 | Bolt | 6 |
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 11 |
| 07***15 | Plug | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Cylinder Block : Flywheel And Flywheel Housing(#31854-)
| 01***30 | Bolt | 6 |
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 11 |
| 07***15 | Plug | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Cylinder Block : Front Cover And Gear
| 01***70 | Bolt,(For 75a Alternator) | 1 |
| 01***16 | Bolt | 2 |
| 01***20 | Bolt,(With Tachometer Outlet) | 6 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Cylinder Block : Oil Pan(#10001-17360)
| 01***16 | Screw | 32 |
| 07***30 | O-Ring,Case? Magnet Ass'Y | 1 |
| 20***60 | Sensor,Engine Oil Level | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Cylinder Block : Oil Pan(#17361-)
| 01***14 | Bolt,(W/Joy Stick Str.)(W/O Heater) | 30 |
| 01***14 | Bolt | 30 |
| 01***16 | Screw | 2 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Cylinder Block : Piston And Connecting Rod
| 04***12 | Ring, Snap | 12 |
| 62***21 | Piston (S) | 6 |
| 62***00 | Piston Ring Ass'Y,Per Cylinder | 6 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Cylinder Block : Power Take Off
| (0***5) | Ring,Snap | 1 |
| (2***0) | Coupling | 1 |
| (0***0) | Bolt,(See Fig.Engine Wiring) | 12 |
Cylinder Head
Komatsu : 6d95l-1b(S/N 10001-Up) : Cylinder Head : Air Cleaner (Double Element Type)(#10001-20188)
| 04***10 | Ring,See Fig. K4010-65a0 | 1 |
| 09***61 | Plate? Instruction,(Chinese) (Not Shown) | 1 |
| 60***11 | Washer,Seal (K26) | 2 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Cylinder Head : Air Cleaner (Single Element Type) (Without Band)(#20189-)
| 04***10 | Ring,See Fig. K4010-65a0 | 1 |
| 60***11 | Washer,Seal (K26) | 1 |
| 60***80 | Valve | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Cylinder Head : Air Cleaner (Single Element Type)(#20189-)
| 04***10 | Ring,See Fig. K4010-65a0 | 1 |
| 09***61 | Plate? Instruction,(Chinese) (Not Shown) | 1 |
| 60***11 | Washer,Seal (K26) | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Cylinder Head : Air Intake Manifold And Connection(#10001-10008)
| 01***30 | Screw | 11 |
| 01***70 | Bolt | 4 |
| 01***85 | Bolt | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Cylinder Head : Air Intake Manifold And Connection(#10009-41929)
| 01***12 | Bolt | 2 |
| 01***20 | Bolt,(For Japan Pc200) | 2 |
| 01***25 | Bolt,(With Corrosion Resistor) | 3 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Cylinder Head : Air Intake Manifold And Connection(#41930-)
| 01***12 | Bolt | 2 |
| 01***20 | Bolt,(For Japan Pc200) | 2 |
| 01***25 | Bolt,(With Corrosion Resistor) | 3 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Cylinder Head : Cylinder Head
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 4 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 25 |
| 01***32 | Washer, (Without Emergency Steering) | 25 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Cylinder Head : Cylinder Head Cover
| 61***10 | Cap, Oil Filler | 1 |
| 61***20 | Screw | 4 |
| 61***30 | Washer,(B) | 4 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Cylinder Head : Exhaust Manifold And Muffler(#10001-21841)
| 01***80 | Bolt, Mount Strainer Flange | 1 |
| 01***25 | Grub Screw | 4 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 4 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Cylinder Head : Exhaust Manifold And Muffler(#21842-)
| 01***80 | Bolt, Mount Strainer Flange | 1 |
| 01***25 | Grub Screw | 4 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 4 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Cylinder Head : Rocker Arm
| 01***12 | Bolt,(Without R.P.C.U.) | 1 |
| 01***65 | Bolt,(For Alternator Bracket Mount) | 8 |
| 61***30 | Nut | 12 |
Electrical System
Komatsu : 6d95l-1b(S/N 10001-Up) : Electrical System : Alternator (25a)(#10001-20188)
| 60***40 | Alternator A. (25a),(See Fig.0641) | 1 |
| KD***52 | Bolt,Through | 3 |
| KD***70 | Rear Bracket Ass'Y | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Electrical System : Alternator (25a)(#20189-)
| 60***30 | Alternator A. (25a),(With Non Hardening Pulley) | 1 |
| KD***57 | Bearing,Ball? Front | 1 |
| KD***11 | Rear Bracket Ass'Y | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Electrical System : Alternator (35a) (Tropical Sandy And Dusty Spec.)(#10001-36974)
| 60***40 | Alternator A. (35a),(With Hardening Pulley) | 1 |
| KD***57 | Bearing,Ball? Front | 1 |
| KD***80 | Collar | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Electrical System : Alternator (35a) (Tropical Sandy And Dusty Spec.)(#36975-)
| 60***90 | Alternator A. (35a) | 1 |
| KD***57 | Bearing,Ball? Front | 1 |
| KD***80 | Collar | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Electrical System : Alternator And Mounting (25a)(#10001-20188)
| 01***30 | Bolt,(For Trimming Dozer) | 1 |
| 01***25 | Bolt,(With Corrosion Resistor) | 3 |
| 01***55 | Bolt,(With Engine Stop Motor Type) | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Electrical System : Alternator And Mounting (25a)(#20189-)
| 01***30 | Bolt,(For Trimming Dozer) | 1 |
| 01***35 | Bolt,(Cold Weather Spec.) | 1 |
| 01***25 | Bolt,(With Corrosion Resistor) | 3 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Electrical System : Alternator And Mounting (35a) (Tropical Sandy And Dusty Spec.)
| 01***60 | Bolt | 1 |
| 01***30 | Bolt,(For Trimming Dozer) | 1 |
| 01***25 | Bolt,(With Corrosion Resistor) | 3 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Electrical System : Heater Switch And Heater Signal
| 60***30 | Signal,Engine Pre Heater | 1 |
| 60***80 | Cap | 1 |
| 60***90 | Cap | 3 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Electrical System : Starting Motor (5.5kw)(#10001-21726)
| 60***30 | Starting Motor Ass'Y,(5.5kw) | 1 |
| KD***30 | Bracket,Center | 1 |
| KD***10 | Field Coil Ass'Y | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Electrical System : Starting Motor (5.5kw)(#21727-)
| 60***20 | Starting Motor Ass'Y,(5.5kw) | 1 |
| KD***30 | Bracket,Center | 1 |
| KD***20 | Cneter Bracket A | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Electrical System : Starting Motor And Mounting (5.5kw)
| 01***30 | Bolt | 3 |
| 07***00 | O-Ring,(F4350-65a1 -5 ) | 1 |
| 07***05 | O-Ring,(Not Used With Emergency Str.) (K2) | 1 |
Engine Kit
Komatsu : 6d95l-1b(S/N 10001-Up) : Engine Kit : Gasket Kit
| 01***12 | Washer,Lock? Injection Gear | 1 |
| 07***00 | O-Ring,(F4350-65a1 -5 ) | 1 |
| 07***05 | O-Ring,(Not Used With Emergency Str.) (K2) | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Engine Kit : Gasket Kit (With Corrosion Resistor)
| 01***12 | Washer,Lock? Injection Gear | 1 |
| 07***00 | O-Ring,(F4350-65a1 -5 ) | 1 |
| 07***05 | O-Ring,(Not Used With Emergency Str.) (K2) | 1 |
Fuel System
Komatsu : 6d95l-1b(S/N 10001-Up) : Fuel System : Fuel Filter And Piping
| 01***20 | Bolt | 2 |
| 07***12 | Gasket,Mechanical Pump Piping | 1 |
| 07***12 | Gasket,(Without Air Compressor Type) (K1) | 4 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Fuel System : Fuel Injection Pump (Feed Pump) (Regulation Of Sweden)
| DK***20 | Bolt, Joint | 1 |
| DK***00 | Valve,Check | 2 |
| DK***20 | Pump,Priming | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Fuel System : Fuel Injection Pump (Feed Pump)(#10001-78684)
| DK***20 | Bolt, Joint | 1 |
| DK***00 | Valve,Check | 2 |
| DK***20 | Pump,Priming | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Fuel System : Fuel Injection Pump (Feed Pump)(#78685-)
| DK***20 | Bolt, Joint | 1 |
| DK***00 | Valve,Check | 2 |
| DK***10 | Feed Pump Ass'Y,(Not Shown) | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Fuel System : Fuel Injection Pump (Governor) (1/2) (Regulation Of Sweden)
| DK***00 | Adapter | 1 |
| DK***00 | Nut,Lock | 1 |
| DK***00 | Housing | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Fuel System : Fuel Injection Pump (Governor) (1/2)(#10001-78684)
| DK***00 | Adapter | 1 |
| DK***00 | Nut,Lock | 1 |
| DK***00 | Housing | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Fuel System : Fuel Injection Pump (Governor) (1/2)(#78685-)
| DK***00 | Shim? 2.00mm,(High Altitude Spec.) | 0 |
| DK***00 | Adapter | 1 |
| DK***00 | Nut,Lock | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Fuel System : Fuel Injection Pump (Governor) (2/2) (Regulation Of Sweden)
| DK***40 | Gasket,Air Compressor | 2 |
| DK***00 | Nut,Cap | 1 |
| DK***00 | Bushing | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Fuel System : Fuel Injection Pump (Governor) (2/2)(#10001-78684)
| DK***40 | Gasket,Air Compressor | 2 |
| DK***00 | Nut,Cap | 1 |
| DK***20 | Cover | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Fuel System : Fuel Injection Pump (Governor) (2/2)(#78685-)
| DK***40 | Gasket,Air Compressor | 2 |
| DK***00 | Nut,Cap | 1 |
| DK***20 | Cover | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Fuel System : Fuel Injection Pump (Pump) (1/2) (Regulation Of Sweden)
| 62***30 | Injection Pump Ass'Y | 1 |
| DK***30 | Key,Woodruff | 1 |
| DK***30 | Bearing | 0 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Fuel System : Fuel Injection Pump (Pump) (1/2)(#10001-78684)
| 62***20 | Injection Pump Ass'Y | 1 |
| DK***30 | Key,Woodruff | 1 |
| DK***30 | Bearing | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Fuel System : Fuel Injection Pump (Pump) (1/2)(#78685-)
| 62***21 | Injection Pump Ass'Y | 1 |
| DK***30 | Key,Woodruff | 1 |
| DK***30 | Bearing | 0 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Fuel System : Fuel Injection Pump (Pump) (2/2) (Regulation Of Sweden)
| DK***40 | Shim? 0.50mm, Shim, 0.50mm; Was Dk029311-0040 | 0 |
| DK***90 | Shim? 0.25mm, Shim, 0.25mm; Was Dk029311-0590 | 0 |
| DK***00 | Sleeve,Control | 6 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Fuel System : Fuel Injection Pump (Pump) (2/2)(#10001-78684)
| DK***40 | Shim? 0.50mm, Shim, 0.50mm; Was Dk029311-0040 | 0 |
| DK***90 | Shim? 0.25mm, Shim, 0.25mm; Was Dk029311-0590 | 0 |
| DK***00 | Sleeve,Control | 6 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Fuel System : Fuel Injection Pump (Pump) (2/2)(#78685-)
| DK***40 | Shim? 0.50mm, Shim, 0.50mm; Was Dk029311-0040 | 0 |
| DK***90 | Shim? 0.25mm, Shim, 0.25mm; Was Dk029311-0590 | 0 |
| DK***00 | Sleeve,Control | 6 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Fuel System : Fuel Injection Pump And Piping
| 01***35 | Stud | 4 |
| 01***25 | Screw | 4 |
| 01***12 | Bolt,(See Fig.0501) | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Fuel System : Fuel Nozzle And Spill Pipe
| 01***35 | Bolt, Mount Bracket To Floor | 6 |
| 07***10 | Tube,(See Fig.0421-14) | 5 |
| 07***30 | Tube,Spill | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Fuel System : Water Separator
| 07***60 | O-Ring,(For Pc750?800?1800) (A2610) | 1 |
| 60***00 | Water Separator A.,(See Fig.2415) | 1 |
| 60***10 | Cover | 1 |
Lubricating Oil System
Komatsu : 6d95l-1b(S/N 10001-Up) : Lubricating Oil System : Lubricating Oil Cooler(#10001-52803)
| 01***25 | Bolt,(With Corrosion Resistor) | 18 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 4 |
| 01***06 | Nut | 4 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Lubricating Oil System : Lubricating Oil Cooler(#52804-)
| 01***25 | Bolt,(With Corrosion Resistor) | 18 |
| 01***06 | Nut | 4 |
| 07***12 | Plug,Taper | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Lubricating Oil System : Lubricating Oil Filter(#10001-21726)
| 01***25 | Bolt,(With Corrosion Resistor) | 4 |
| 07***12 | Washer, Gasket,(Without Thermo Sensor) (K1) | 1 |
| 60***40 | Alarm Assembly, Full Flow Filter | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Lubricating Oil System : Lubricating Oil Filter(#21727-)
| 60***40 | Cartridge,Engine Oil Filter (D31s) | 1 |
| 60***41 | Cartridge,Engine Oil Filter (D31s) | 1 |
| 60***20 | Plate? Caution,Oil Filter | 1 |
Komatsu : 6d95l-1b(S/N 10001-Up) : Lubricating Oil System : Lubricating Oil Pump And Suction Pipe
| 01***12 | Bolt,(See Fig.0501) | 1 |
| 01***16 | Screw | 6 |
| 01***25 | Bolt,(With Corrosion Resistor) | 1 |
6D95L-1B(S/N 10001-UP) serial number reference
The engine serial number is stamped directly onto the engine block, typically on the left side near the injection pump or on a metal data plate affixed near the valve cover. The prefix '6D95L-1B' identifies the engine model; the number following it (10001-UP) indicates the sequential build number within that specific engine series. Always cross-reference the engine serial with the machine serial plate to confirm the correct parts catalog.
| Prefix | Identifies | Notes |
|---|---|---|
| 6D95L-1B | 6D95L-1B | Engine model 6D95L-1B, serial range 10001-UP. This engine is used in PC120-5 (S/N 30001-UP) and D37E-5 (S/N 1606-3001-UP & A1924-UP) machines. Verify with your dealer if your specific machine falls within these serial ranges, as other variants (e.g., 6D95L-1AA) serve different machine series. |
Frequently asked questions
What is the engine displacement and configuration?
The Komatsu 6D95L-1 is a 4,890 cm³ (298.4 cu in) inline-six diesel engine with a bore and stroke of 95 mm x 115 mm (3.74 in x 4.53 in).
What is the operating weight of the machines powered by this engine?
Operating weight varies by configuration and series. The FD35/40/45 wheel loaders typically range from 3,400 to 4,500 kg (7,496 to 9,921 lb), while the SD23/25-3 mini excavators range from 2,300 to 2,500 kg (5,071 to 5,512 lb).
What engine replaced the 6D95L-1?
The 6D95L-1 was succeeded by the SAA4D95LE series engines, which incorporate modern emissions control technologies and electronic fuel injection systems to meet Tier 3 and Tier 4 standards.
What 6D95L-1B(S/N 10001-UP) owners discuss
What are the typical power and torque specifications for the 6D95L-1 engine series?
What are the known hydraulic and powertrain behaviors for Komatsu excavators with this engine family?
What undercarriage or wear patterns are typical for machines using this engine?
What are the common electrical and sensor issues for this engine family?
What is the engine configuration and key specifications?
What are the recommended lubricants and coolants?
What should be checked when buying a used machine with a 6D95L-1B(S/N 10001-UP) engine?
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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