Komatsuengine(no series)
Komatsu 4D95LE-2A(S/N 100005-UP)
Maintenance schedule, common problems & OEM parts breakdown
The 4D95LE-2A(S/N 100005-UP) is a bare Komatsu industrial diesel engine, not a standalone machine. It is a naturally aspirated 4-cylinder unit with 95 x 115mm (3.74 x 4.53in) bore and stroke, 3.26L displacement, mechanically governed by a Bosch-type inline injection pump, rated 40kW (54HP) net at 2,100rpm. There is no ECM and no digital fault codes; diagnosis on this engine is entirely mechanical. Komatsu factory-fit this serial-range engine into the PC60-7 excavator (S/N 45001-52373), the PC60-7B (52374-up), the PC70-7 and PC70-7-B, and the BA100-1 mobile crusher/screening plant, all built in the window that followed the PC60-6/PC70-6 predecessor generation and its 4D95L-1 series engine. A bare-engine weight and external dimensions are not published for this configuration; the excavator hosts it powers sit in the 6-7 tonne class. Sibling calibrations 4D95LE-2B, 2C, and 2D exist within the same family but carry their own serial breakpoints and should not be assumed identical to the 2A.
Across the 4D95 family, Komatsu kept the mechanical fuel system through the 4D95L-1 and 4D95LE-2 generations before making the real break at PC60-8/PC70-8, where the line moved to the turbocharged, electronically metered SAA4D95LE-5 with full engine control module management. The 2A/2B/2C/2D suffixes inside the -2 generation mark running production changes tied to serial breakpoints rather than a redesign, so the core architecture stayed constant through this engine's run: linerless cylinder block, naturally aspirated induction, Bosch-type inline pump. That mechanical simplicity is why it still matters in the used and parts market today. There is no ECM to fail and no proprietary diagnostic tooling required, and the bottom end is rebuildable, which keeps aging PC60-7 and PC70-7 excavators and BA100-1 crushers economical to run well past the point where later electronically controlled equivalents would need specialist service support.
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 4D95LE-2A(S/N 100005-UP) specifications
Engine
| Model | Komatsu 4D95LE-2A (S/N 100005-UP), 95-2 series |
| Type | 4-cycle, water-cooled, direct-injection diesel, naturally aspirated |
| Cylinders | 4, in-line, firing order 1-2-4-3 |
| Bore x stroke | 95 mm x 115 mm |
| Displacement | 3.26 L (199 cu in); some machine spec sheets round to 3.28 L (200 cu in) |
| Rated output (net, flywheel) | 40 to 40.5 kW / 54 HP at 2,100 rpm |
| Max torque (net) | 235 Nm (24 kgm) at 1,500 rpm |
| Fuel injection pump | Bosch PES-A type, direct injection |
| Emissions tier | Listed as Tier 1 on one parts-reference source; not independently corroborated for this exact serial range, verify with dealer |
| Electrical system | 24V; alternator 24V/25A; starting motor 24V/3.0 kW; battery 12V 60Ah x2 |
Weights
| Engine dry weight | Not documented for this exact engine model in available sources - verify with your dealer |
| Note | Operating weight is a host-machine figure, not a fixed engine spec; this engine mounts across excavator and mobile-crusher chassis with different weights |
Dimensions
| Engine external dimensions | Not documented for this exact engine model in available sources - verify with your dealer |
| Note | Overall dimensions are set by the host machine, not the bare engine, for this application |
Performance
| Rated speed | 2,100 rpm (net rated output calibration used on this engine's confirmed host applications) |
| Max torque speed | 1,500 rpm |
| Governor idle speeds | Not documented for this exact engine model in available sources - verify with your dealer |
Service capacities (summary)
| Engine oil (refill) | 7.0 L |
| Cooling system | 10 L total (engine side 4.5 L) |
| Fuel tank | Not a fixed engine capacity; set by the host machine (for example, roughly 130 L on a PC60-7 chassis) |
| Hydraulic system | Not applicable to the bare engine; hydraulic capacity belongs to the host machine |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
4D95LE-2A(S/N 100005-UP) fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | 7.0 L (1.85 US gal) | Komatsu-spec SAE15W-40 or SAE30 diesel engine oil (Komatsu Genuine EO-series equivalent). Pick grade by ambient temperature; consult dealer for the cold-weather 10W-30 cut-in point on this engine. |
| Cooling system (total, incl. engine side) | 10 L (2.64 US gal) total — 4.5 L (1.19 US gal) engine side | Komatsu Genuine antifreeze coolant (permanent-type, ethylene-glycol base). Exact branded product name not confirmed in available excerpts for this engine — verify with dealer. |
| Fuel system | Not listed for the bare engine — tank sizing is host-machine dependent | ASTM D975 No. 2 diesel fuel for ambient -30°C to 40°C (-22°F to 104°F); ASTM D975 No. 1 diesel below -30°C (-22°F) |
| Grease (linkage / rod-end points, spec only) | Not applicable — spec only | Komatsu-spec G2-LI lithium-base grease |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Komatsu 4D95LE-2A(S/N 100005-UP) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 4,000 h |
|
Servicing the 4D95LE-2A(S/N 100005-UP) beyond the schedule
Predictive Maintenance & Fluid Analysis
The mechanical injection pump and absence of ECM mean this engine gives no digital fault codes. Track wear through oil analysis, watching for metal from the linerless cylinder bores and rod bearings. Sample coolant periodically for hydrocarbon contamination that signals a head gasket leak. Watch exhaust smoke color and fuel filter condition on PC60-7 and PC70-7 hosts as early warning signs before the Bosch-type injection pump drifts out of calibration and costs real power.
Corrective & Common Repairs
Common wear points on this engine: injector nozzle carbon buildup causing rough idle and smoky exhaust, water pump seal leaks draining the 10-liter cooling system, and governor linkage wear producing a hunting idle on the mechanical injection pump. High-hour PC60-7 and PC70-7 excavator hosts also see starter and alternator brush wear, plus head gasket seepage from the linerless cylinder block after repeated overheating cycles. Replace filters and belts on schedule to avoid chasing these failures under load.
Overhaul & Rebuild Points
At major overhaul, check cylinder bore wear closely: this is a linerless block, so there are no replaceable sleeves and bore tolerances set the rebuild limit. Verify rod and main bearing clearances against factory torque figures, and send the Bosch-type injection pump out for recalibration rather than guessing at timing. Inspect valve seats and guides for recession, since sustained naturally-aspirated duty on PC60-7, PC70-7, and BA100-1 crusher applications runs the engine hard without turbo boost to mask wear.
Seasonal & Environment Servicing
Cold-climate starts benefit from checking glow-plug or ether-start aid function ahead of winter, plus a coolant freeze-point check across the 10-liter system. Drain the fuel water separator more often in humid or wet-season digging on PC60-7 and PC70-7 hosts, since the mechanical injection pump has no electronic fuel-water sensor to warn you. In dusty duty like the BA100-1 crusher/screen application, service the air cleaner element more frequently than the excavator schedule calls for to protect the naturally-aspirated intake.
4D95LE-2A(S/N 100005-UP) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 07281-00197 | Clamp,(With Pre-Fuel Filter) | Fuel system service | Check fitment → |
| 600-311-7441 | Cartridge,Fuel Filter | Fuel system service | Check fitment → |
| 6206-73-6201 | Fuel Filter Ass'Y | Fuel system service | Check fitment → |
| 6204-71-6250 | Fuel Filter Ass'Y | Fuel system service | Check fitment → |
| 6204-81-7000 | Air Cleaner Ass'Y,Double Element | Air intake service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
4D95LE-2A(S/N 100005-UP) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| Coolant temperature warning lamp (red thermometer/radiator symbol) + buzzer | Engine coolant temperature has exceeded the normal operating range | Low coolant level, clogged radiator fins, faulty water pump, or slipping/broken fan belt | Stop machine safely, let engine cool, check coolant level and radiator for blockage before restarting |
| Engine oil pressure warning lamp (red oil-can symbol) + buzzer | Engine lubrication oil pressure has dropped below the safe threshold | Low oil level, clogged oil filter, worn oil pump, or oil pressure sensor/switch fault | Shut engine down immediately, check oil level and filter condition before restarting |
| Charge (battery) warning lamp (red battery symbol) | Alternator is not charging the battery | Broken or slipping fan/alternator belt, faulty alternator, or wiring fault | Check belt tension and condition, inspect alternator wiring and connections |
| Air cleaner (air filter) clogging indicator | Intake air filter restriction has reached the service limit | Dust- or debris-clogged air filter element | Inspect and clean or replace the air filter element |
| Fuel level warning lamp | Fuel tank level is low | Fuel running low during operation | Refuel; check for fuel leaks if the lamp triggers unexpectedly early |
| Preheat (glow) indicator lamp | Intake air preheating is active for cold starting | Normal cold-start function, not a fault; illuminates until preheat cycle completes | Wait for lamp to go out before cranking; if it never illuminates in cold weather, check the glow/preheat circuit |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
4D95LE-2A(S/N 100005-UP) attachments & work tools
Excavation buckets
General-purpose buckets for the confirmed host machine run roughly 0.2 to 0.36 m3, matched to a bucket width class around 825 mm. Narrower ditching/trenching buckets and wider grading buckets are offered in the same class. Buckets pin-on to the standard stick, no coupler required.
Hydraulic breakers
Breakers sized for this 6-ton excavator class typically fall in the 300-550 kg range with a 68-85 mm tool/chisel diameter, sized to the machine's auxiliary hydraulic flow of roughly 40-70 L/min. Running a breaker needs a one-way auxiliary hydraulic circuit with a pedal or foot-valve kit; this is an add-on kit, not standard plumbing on the base machine.
Backfill/grading blade
This chassis class carries a front-mounted dozer/backfill blade used for spoil backfill and light leveling, sized to the machine's roughly 2.2 m transport width. Blade angle is fixed, raised and lowered by its own hydraulic cylinder from the cab.
Quick couplers
Both mechanical pin-grabber and hydraulic quick couplers are offered in this size class, letting the operator swap bucket, breaker, and thumb without leaving the cab on hydraulic versions. Coupler frame size is matched to this machine's stick pin spacing and is not interchangeable with larger excavator classes.
Hydraulic thumb
Manual pinned thumbs and hydraulic clamp-style thumbs mount alongside the bucket on the stick for grabbing pipe, brush, and debris. A hydraulic thumb needs an added single-acting auxiliary circuit similar to the breaker kit; manual thumbs need no extra plumbing.
All 4D95LE-2A(S/N 100005-UP) assemblies by section
Every catalogued assembly group for the Komatsu 4D95LE-2A(S/N 100005-UP). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Engine
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Air Cleaner (Double Element Type)(#100008-)
| 04***10 | Ring,See Fig. K4010-65a0 | 1 |
| 60***00 | Element Ass'Y,Outer | 1 |
| 60***00 | Element Ass'Y | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Air Cleaner (Single Element Type)(#100008-)
| 04***10 | Ring,See Fig. K4010-65a0 | 1 |
| 60***00 | Element Ass'Y,Outer | 1 |
| 60***60 | Gasket | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Air Intake
| 01***12 | Bolt,(With Speedometer) | 4 |
| 01***65 | Bolt, Mount Tube To Divider Valve | 2 |
| 01***75 | Bolt (M10-1.50x75) | 6 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Air Intake Connector(#100008-)
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 4 |
| 61***50 | Gasket (K1) | 1 |
| 62***50 | Gasket | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Alternator (25a) (With Non Hardening Pulley)
| (6***0) | Alternator A. (25a),(See Fig.A6010-B1e1) | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Alternator (25a) (With Non Hardening Pulley) (Inner Parts)
| 60***20 | Alternator A. (25a),(With Non Hardening Pulley) | 1 |
| KD***57 | Bearing,Ball? Front | 1 |
| KD***11 | Rear Bracket Ass'Y | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Alternator (35a) (Inner Parts)(#100460-)
| 60***50 | Alternator A. (35a) | 1 |
| KD***70 | Bushing,Insulate | 1 |
| KD***40 | Bushing,Insulate | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Alternator (35a)(#100460-)
| (6***0) | Alternator A. (35a),(See Fig.A6010-B1e3) | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Alternator Mounting (For 25a Alternator)
| 01***35 | Bolt,(Cold Weather Spec.) | 1 |
| 01***25 | Bolt - Relay Mounting | 3 |
| 01***60 | Bolt, Mounting | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Alternator Mounting (For 35a Alternator)(#100460-)
| 01***30 | Bolt,(For Trimming Dozer) | 1 |
| 01***25 | Bolt - Relay Mounting | 3 |
| 01***70 | Screw | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Camshaft And Gear
| 01***20 | Bolt,(Forwarded Individually Parts) | 2 |
| 01***20 | Screw | 2 |
| 04***16 | Fitting Wedge | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Cooling Fan
| 60***20 | Fan,Cooling | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Cooling Fan Bolt(#100008-)
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 6 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Cooling Fan Spacer Bolt(#100008-)
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Crank Pulley (Non Hardening)(#100005-107086)
| 01***35 | Bolt | 1 |
| 62***10 | Washer | 1 |
| 62***20 | Pulley,Non Hardening | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Crank Pulley (Non Hardening)(#107087-)
| 01***45 | Bolt,Nylock | 1 |
| 61***31 | Plate | 1 |
| 62***21 | Pulley,Non Hardening | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Crankshaft(#100005-107086)
| 62***00 | Main Metal Ass'Y | 5 |
| 62***00 | Thrust Metal Ass'Y | 1 |
| 62***00 | Main Metal Ass'Y | 5 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Crankshaft(#107087-)
| 62***00 | Main Metal Ass'Y | 5 |
| 62***00 | Thrust Metal Ass'Y | 1 |
| 62***00 | Main Metal Ass'Y | 5 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Cylinder Block Cover
| 01***14 | Bolt,(W/Joy Stick Str.)(W/O Heater) | 2 |
| 01***14 | Bolt | 2 |
| 07***16 | Plug,(Without Air Compressor Type) | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Cylinder Block Gasket Kit
| 01***12 | Washer,Lock (Noise Suppression Spec.) (K2) | 1 |
| 07***18 | O-Ring,(See Fig.1601-29?1602-17) | 1 |
| 07***20 | O-Ring,Relief Valve | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Cylinder Block(#100005-105844)
| 04***20 | Pin,Dowel (Welded) | 2 |
| 04***28 | Pin, Dowel - Transmission Case, Pin-Dowel | 2 |
| 04***08 | Adapter Sleeves | 6 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Cylinder Block(#105845-)
| 04***20 | Pin,Dowel (Welded) | 2 |
| 04***28 | Pin, Dowel - Transmission Case, Pin-Dowel | 2 |
| 04***08 | Adapter Sleeves | 6 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Cylinder Head
| 01***32 | Washer, (Without Emergency Steering) | 17 |
| 02***04 | Plug, Pipe | 1 |
| 07***08 | Plug, Expansion | 4 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Cylinder Head Gasket Kit
| 07***40 | O-Ring,Water Pump Mount | 1 |
| 07***12 | Washer, Gasket,(Without Thermo Sensor) (K1) | 1 |
| 08***14 | Band,(For Additional Fuel Strainer) | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Dust Indicator
| 08***01 | Indicator,Dust (Japanese-English) | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Exhaust Connector
| 01***25 | Grub Screw | 4 |
| 01***35 | Bolt,R.H. (For Add. Air Compressor) | 2 |
| 61***80 | Gasket,Exhaust Manifold | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Exhaust Manifold
| 01***45 | Bolt, Bracket Mounting | 8 |
| 62***10 | Manifold,Exhaust | 1 |
| 62***10 | Gasket (K1) | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Fan Belt
| 04***48 | V-Belt,(For 50a? 75a Alternator) | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Fan Belt (For 25a Alternator)(#100333-)
| 04***47 | V-Belt,(With 25a Alternator) | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Fan Spacer(#100008-)
| 62***40 | Spacer | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Flywheel
| 01***30 | Bolt | 6 |
| 61***61 | Washer, Plain (14mm) | 6 |
| 62***93 | Gear,Ring | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Flywheel Housing
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 11 |
| 07***16 | Gasket,(For Pc750-6) (See Fig.A2110) | 1 |
| 07***15 | Plug,(Used When Without Heater) | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Front Cover
| 01***20 | Bolt,See Fig. K4010-11a0 | 6 |
| 01***16 | Bolt, Mount Solenoid Valve | 2 |
| 01***55 | Screw | 11 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Front Hanger
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
| 62***30 | Hanger,Front (W/O Corrosion Resistor) | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Fuel Filter(#100008-101860)
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 1 |
| 01***15 | Bolt | 1 |
| 01***30 | Bolt | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Fuel Filter(#101861-)
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 1 |
| 01***15 | Bolt | 1 |
| 01***30 | Bolt | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Fuel Injection Piping
| 01***12 | Bolt,(See Fig. K0210-16a0) | 2 |
| 01***25 | Screw | 2 |
| 62***10 | Tube,Injection? No.1 | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Fuel Injection Pump
| (6***0) | Injection Pump Ass'Y,(See Fig.A4010-B0a1) | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Fuel Injection Pump (Feed Pump) (Inner Parts)
| DK***20 | Bolt, Joint | 1 |
| DK***60 | Feed Pump Ass'Y | 1 |
| DK***00 | Valve,Check | 2 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Fuel Injection Pump (Governor) (1/2) (Inner Parts)
| DK***00 | Shim? 2.00mm,(High Altitude Spec.) | 0 |
| DK***00 | Adapter | 1 |
| DK***72 | Governor Ass'Y | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Fuel Injection Pump (Governor) (2/2) (Inner Parts)
| DK***00 | Gasket | 1 |
| DK***40 | Gasket,Air Compressor | 2 |
| DK***00 | Nut,Cap | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Fuel Injection Pump (Pump) (1/2) (Inner Parts)
| 62***40 | Injection Pump Ass'Y | 1 |
| DK***30 | Bearing | 0 |
| DK***20 | Shim, 1.40mm; Was Dk029311-7220, Shim? 1.4mm | 0 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Fuel Injection Pump (Pump) (2/2) (Inner Parts)
| 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 | 4 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Fuel Injection Pump Lubricator
| 07***12 | Gasket,(Without Air Compressor Type) (K2) | 2 |
| 07***10 | Screw, Banjo Connector (M10-1.25x20) | 1 |
| 62***30 | Pipe,Oil | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Fuel Injection Pump Mounting
| 01***20 | Bolt | 1 |
| 01***35 | Grub Screw | 4 |
| 01***12 | Bolt,(With Speedometer) | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Fuel Return
| 07***00 | Clip | 7 |
| 62***81 | Cap,(See Fig.0421-17) | 1 |
| 62***00 | Hose,(See Fig.0421-14? 0421a-14) | 3 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Glow Plug
| 60***40 | Glow Plug,Glow | 4 |
| 62***20 | Wire | 1 |
| 62***10 | Lead | 3 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Head Cover
| 61***20 | Screw | 3 |
| 61***30 | Washer,(B) | 3 |
| 61***42 | Packing,Cylinder Head Cover | 3 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Head Cover Related Parts
| 07***09 | Clamp, Hose | 2 |
| 07***09 | Clamp,(See Fig. K0210-16a0) | 2 |
| 61***10 | Cap, Oil Filler | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Head Cover Related Parts(#100008-)
| 61***10 | Cap, Oil Filler | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Heater Signal
| 60***61 | Signal,Heater | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Idler Gear
| 01***70 | Bolt,(For 75a Alternator) | 1 |
| 04***12 | Pin,Spring (See Fig.0201) | 1 |
| 62***31 | Shank | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Inhibitor(#100008-)
| 60***20 | Inhibitor | 2 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Injection Nozzle(#100005-106114)
| 01***35 | Bolt, Mount Bracket To Floor | 4 |
| 62***00 | Holder Ass'Y | 4 |
| 62***20 | Nozzle | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Injection Nozzle(#106115-)
| 01***35 | Bolt, Mount Bracket To Floor | 4 |
| 62***01 | Holder Ass'Y | 4 |
| 62***10 | Nozzle Holder | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Muffler
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 4 |
| 01***06 | Nut | 4 |
| 62***50 | Muffler | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Name Plate And Caution (Arabic) (Double Emement Type)(#100008-)
| 09***63 | Plate? Instruction,(For Arabic) | 1 |
| 62***60 | Plate? Caution,Head Cover | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Name Plate And Caution (Chinese) (Double Emement Type)(#100008-)
| 09***63 | Plate? Instruction,Air Cleaner Element Mainte | 1 |
| 62***80 | Plate? Caution,Head Cover | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Name Plate And Caution (Chinese) (Single Emement Type)(#100008-)
| 09***63 | Plate? Instruction,Air Cleaner | 1 |
| 62***80 | Plate? Caution,Head Cover | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Name Plate And Caution (English) (Double Emement Type)
| 09***63 | Plate? Instruction,Air Cleaner (Single Element) | 1 |
| 62***20 | Plate? Caution,Head Cover | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Name Plate And Caution (English) (For Epa Regulation)(#100008-102965)
| 04***50 | Screw | 4 |
| 62***20 | Plate,Instruction | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Name Plate And Caution (English) (For Epa Regulation)(#102966-104403)
| 04***50 | Screw | 4 |
| 62***20 | Plate,Instruction | 1 |
| 62***50 | Plate | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Name Plate And Caution (English) (For Epa Regulation)(#104404-)
| 04***50 | Screw | 4 |
| 62***21 | Plate,Instruction | 1 |
| 62***50 | Plate | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Name Plate And Caution (French) (Double Emement Type)(#100008-)
| 09***63 | Plate? Instruction,Air Cleaner Element Mainte | 1 |
| 62***50 | Plate? Caution,Head Cover | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Name Plate And Caution (French) (Single Emement Type)(#100008-)
| 09***63 | Plate? Instruction,Air Cleaner | 1 |
| 62***50 | Plate? Caution,Head Cover | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Name Plate And Caution (German) (Double Emement Type)(#100008-)
| 09***63 | Plate? Instruction,Air Cleaner Element Mainte | 1 |
| 62***40 | Plate? Caution,Head Cover | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Name Plate And Caution (German) (Single Emement Type)(#100008-)
| 09***63 | Plate? Instruction,Air Cleaner | 1 |
| 62***40 | Plate? Caution,Head Cover | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Name Plate And Caution (Indonesian) (Double Emement Type)(#100008-)
| 09***63 | Plate? Instruction,(For Indonesia) | 1 |
| 62***20 | Plate? Caution,(Indonesian) | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Name Plate And Caution (Italian) (Double Emement Type)(#100008-)
| 09***63 | Plate? Instruction,(For Italian) | 1 |
| 62***10 | Plate? Caution,Head Cover | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Name Plate And Caution (Japanese) (Single Emement Type)
| 09***63 | Plate? Instruction,Air Cleaner (Single Element) | 1 |
| 62***10 | Plate? Caution,Head Cover | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Name Plate And Caution (Japanese-English)(#100005-102986)
| 04***50 | Screw | 4 |
| 60***20 | Plate | 1 |
| 60***21 | Plate | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Name Plate And Caution (Japanese-English)(#102987-104364)
| 04***50 | Screw | 4 |
| 60***21 | Plate | 1 |
| 62***20 | Plate,Instruction | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Name Plate And Caution (Japanese-English)(#104365-)
| 04***50 | Screw | 4 |
| 60***21 | Plate | 1 |
| 60***22 | Plate | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Name Plate And Caution (Russian) (Double Emement Type)(#100008-)
| 09***63 | Plate? Instruction,Air Cleaner | 1 |
| 62***70 | Plate? Caution,Head Cover | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Name Plate And Caution (Spanish) (Double Emement Type)(#100008-)
| 09***63 | Plate? Instruction,(Spanish) (Not Shown) | 1 |
| 62***30 | Plate? Caution,Head Cover | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Name Plate And Caution (Spanish) (Single Emement Type)(#100008-)
| 09***63 | Plate? Instruction,Air Cleaner | 1 |
| 62***30 | Plate? Caution,Head Cover | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Name Plate And Caution (Swedish) (Double Emement Type)(#100008-)
| 20***60 | Plate? Instruction,Air Cleaner | 1 |
| 62***60 | Plate? Caution,Head Cover | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Oil Filter
| 01***20 | Bolt,(Forwarded Individually Parts) | 4 |
| 01***25 | Bolt - Relay Mounting | 14 |
| 01***35 | Bolt, Cover | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Oil Level Gauge(#100008-)
| 01***14 | Bolt,(W/Joy Stick Str.)(W/O Heater) | 1 |
| 01***50 | Bolt,(See Fig.A4010-C3w6) | 1 |
| 01***20 | Screw | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Oil Pan And Suction Tube(#100008-)
| 01***14 | Bolt,(W/Joy Stick Str.)(W/O Heater) | 22 |
| 01***16 | Bolt, Mount Solenoid Valve | 2 |
| 01***20 | Bolt,(Forwarded Individually Parts) | 2 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Oil Pressure Switch
| 08***05 | Switch,Engine Oil Pressure | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Oil Pump
| 01***16 | Bolt, Mount Solenoid Valve | 4 |
| 01***25 | Bolt - Relay Mounting | 1 |
| 62***01 | Cover Ass'Y | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Piston
| 04***12 | Ring, Snap | 8 |
| 62***41 | Piston,(S) | 4 |
| 62***10 | Pin,Piston | 4 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Plug(#100008-)
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Rear Hanger
| 62***10 | Hanger,Rear | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Rocker Arm
| 01***65 | Bolt,(For Alternator Bracket Mount) | 5 |
| 62***20 | Spring | 3 |
| 62***10 | Arm,Rocker | 8 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Solenoid
| 01***14 | Bolt - Plate Mounting | 2 |
| 01***90 | Bolt,(For Large Fan) | 1 |
| 01***15 | Bolt | 2 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Spare Parts (For 35a Alternator)
| 04***48 | V-Belt,(For 50a? 75a Alternator) | 1 |
| 07***16 | Gasket,(For Pc750-6) (See Fig.A2110) | 1 |
| 60***10 | Cartridge,Engine Oil | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Spare Parts(#100333-)
| 04***47 | V-Belt,(With 25a Alternator) | 1 |
| 07***16 | Gasket,(For Pc750-6) (See Fig.A2110) | 1 |
| 60***10 | Cartridge,Engine Oil | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Starting Motor (3.0kw) (Inner Parts)
| 60***10 | Starting Motor Ass'Y,(3.0kw) | 1 |
| KD***40 | Pinion | 1 |
| KD***50 | Washer | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Starting Motor Mounting (3.0kw)
| 01***35 | Bolt,R.H. (For Add. Air Compressor) | 2 |
| 62***50 | Gasket,Starter | 1 |
| (6***0) | Starting Motor Ass'Y,(3.0kw) (See Fig.A6210-B0a1) | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Tacho Drive Cover
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Tappet
| 62***10 | Tappet | 8 |
| 62***10 | Tappet Rod | 8 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Water Connector(#100008-101516)
| 01***20 | Bolt,(Forwarded Individually Parts) | 2 |
| 62***30 | Connector,Water Outlet | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Water Connector(#101517-)
| 01***20 | Bolt,(Forwarded Individually Parts) | 2 |
| 62***10 | Connector | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Water Pump Pulley (Non Hardening Pulley)
| 62***80 | Pulley?Non Hardening,(Tropical Sandy? Dusty Spec.) | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Water Pump Pulley (Non Hardening Pulley) (Except Japan)(#100008-)
| 62***51 | Pulley?Non Hardening,(With Tension Pulley) | 1 |
| 62***61 | Pulley?Non Hardening,(For Japan Pc200) | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Water Pump(#100008-103979)
| 01***16 | Screw | 5 |
| 01***55 | Screw | 3 |
| 07***40 | O-Ring,Water Pump Mount | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Water Pump(#103980-)
| 01***16 | Screw | 5 |
| 01***55 | Screw | 3 |
| 07***40 | O-Ring,Water Pump Mount | 1 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Water Separator (Fowarded Individually Parts) (Inner Parts)(#102082-)
| 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 |
Komatsu : 4d95le-2a(S/N 100005-Up) : Engine : Water Separator (Fowarded Individually Parts)(#102082-)
| 61***60 | Joint,Water | 1 |
| (6***0) | Water Separator A.,(See Fig.D0200-51a0) | 1 |
4D95LE-2A(S/N 100005-UP) serial number reference
The engine data plate for the 4D95LE-2A is riveted to the rocker cover area or the side of the cylinder block and shows the engine model and the engine serial number (100005-up); it is separate from the machine's own PIN/serial plate. The machine serial plate is riveted to the chassis or swing frame near the operator step and shows the equipment serial number (for example 45001-up for PC60-7) that governs which parts book or shop-manual volume applies. Always read both plates, since the engine and machine number sequences run independently, and equipment lines like PC60-7 and PC70-7 can coincidentally start at the same machine serial number despite being unrelated sequences.
| Prefix | Identifies | Notes |
|---|---|---|
| 45001 | PC60-7 excavator, S/N 45001 to 52373 | First-run PC60-7 chassis, factory shop manual for this exact serial band lists 4D95LE-2A as the fitted engine (engine S/N 100005-up). Machine serial numbering is its own sequence, separate from the engine serial number. |
| 52374 | PC60-7B excavator, S/N 52374-up | Second-run PC60-7 chassis (B designation), same 4D95LE-2A engine continues. A shop manual volume for this same serial band calls out a running change at S/N 55720-up as a parts difference only, not a different engine or a new serial break for other markets. |
| 45001 | PC70-7 excavator, S/N 45001-up | Sibling chassis to PC60-7 (wider frame/reach class), independent serial sequence that happens to start at the same number. Fitment listings tie 4D95LE-2A (engine S/N 100005-up) to this model. |
| 45001 | PC70-7-B excavator, S/N 45001-up | Own catalog entry confirms this serial start point rather than just inheriting PC70-7's number; same 4D95LE-2A engine family. Confirm with dealer if your unit needs a running-change split within this range. |
| A5001 | PC60-7 (US) Front Blade Spec, S/N A5001-up | Distinct alpha-numeric serial series confirmed for the front-blade-equipped PC60-7 configuration, separate from the plain 45001-up series. Parts listings tie it to the 4D95 engine family used across this chassis; confirm with dealer that the specific 2A sub-variant applies to your unit. |
| 1003 | BA100-1 support unit, S/N 1003-up | Appears consistently across multiple independent parts listings alongside PC60-7/PC70-7 on shared cooling-system components for the 4D95 engine family. Exact machine type and the specific 2A engine sub-variant are not confirmed for this unit; confirm with dealer. |
| 1301 | BR100JG-2 mobile crusher, S/N 1301-up | Confirmed as a Komatsu mobile crusher/recycler model across multiple listings, sharing cooling-system parts with PC60-7/PC70-7 on the 4D95 engine family. The specific 2A engine sub-variant tie is not independently confirmed; confirm with dealer. |
Frequently asked questions
What engine is the Komatsu 4D95LE-2A(S/N 100005-UP)?
A naturally aspirated 4-cylinder diesel with 95 x 115mm bore and stroke, 3.26L displacement, mechanically governed by a Bosch-type inline injection pump, rated 40kW (54HP) net at 2,100rpm. No ECM, no digital fault codes.
What is the operating weight of the 4D95LE-2A(S/N 100005-UP)?
Not documented for the bare engine itself; a standalone engine weight applies to the host machine, not the powerplant. Its excavator hosts, the PC60-7 and PC70-7, fall in the 6-7 tonne class. Verify exact engine dry weight with your dealer.
What replaced the 4D95LE-2A(S/N 100005-UP)?
Komatsu moved this engine family to the turbocharged, electronically metered SAA4D95LE-5 in the PC60-8/PC70-8 generation, the first electronically controlled step in the 4D95 lineage for these hosts.
What 4D95LE-2A(S/N 100005-UP) owners discuss
What do owners generally say about the 4D95LE-2A powering the PC60-7 and PC70-7?
Reputation is favorable overall. It is a simple mechanical-injection four-cylinder diesel with no engine electronics to chase, and most reported trouble traces back to fuel delivery rather than core engine wear. Cold-start behavior is the main talking point: preheat/glow-plug cycling typically runs a short 20 to 30 second cycle before cranking, and operators note that a second preheat cycle is sometimes needed in cold weather before the engine catches cleanly.
What hydraulic or swing-system behaviors come up most for PC60-7/PC70-7 hosts?
Swing that will not respond even though the swing-lock indicator shows unlocked points to the swing-lock solenoid or the swing motor circuit rather than the engine. Owners of these midi excavators also report pilot and pressure-line fittings failing over years of service, especially on machines that have sat outdoors, so hose and fitting condition on a used unit is worth a close look. Broader control-valve or pilot-pressure leakage complaints exist across the wider Komatsu dash-7 excavator lineup, but that specific detail is not documented for the PC60-7/PC70-7 chassis itself, so treat it as a family tendency rather than a confirmed trait of this host.
What undercarriage and final-drive wear patterns are typical for this engine's excavator hosts?
Final drive shaft seals are the recurring wear item; repeated seal leakage is usually blamed on excess pressure building in the drive motor case rather than a bad seal alone, and it lets gear oil migrate into the sun-gear case. During final-drive reassembly, owners report the internal gears not lining up cleanly with the hub if things are not indexed correctly on the way back together. Standard advice is to keep an eye on sprocket wear, since a worn sprocket accelerates final-drive wear, and to check gear-case oil level and condition at the service interval in the shop manual.
Are there known fuel-system quirks specific to this engine series?
Yes. Owners describe symptoms of the engine acting like it is starving for fuel: it runs, but power drops off, black smoke shows under load, idle gets rough, and pumping the manual fuel lever sometimes keeps it running. On more than one machine this traced back to sediment and gunk collected in the bottom of the fuel tank rather than a pump or injector fault, so tank cleanliness is a first check before deeper injection-pump work. Separately, injection pump timing on this mechanical-pump family is known to drift with age, which shows up as rough running or hard starting even with clean fuel.
What electrical or charging-system issues show up on these engines?
Complaints center on the charging circuit rather than sensors, since this is a mechanically governed engine with minimal onboard electronics. Alternator output and starter-relay function are the usual suspects when a machine won't crank reliably or the battery won't hold charge between uses. Glow-plug relay and glow-plug condition are the other common check when cold starts get harder over time.
What should a buyer check on a used 4D95LE-2A(S/N 100005-UP)-powered PC60-7 or PC70-7?
Pull hours and maintenance records first, since service history drives remaining engine and hydraulic life more than age alone. Cold-start the engine and watch smoke color and idle stability; heavy black smoke or a rough idle points toward injection pump timing or fuel contamination. Cycle swing function and confirm the swing-lock solenoid disengages cleanly. Check final-drive housings for oil weeping or seal leakage and inspect sprocket and track wear, since worn sprockets accelerate final-drive failure. Walk the machine for pilot and hydraulic line condition, particularly on machines that have sat outdoors. Verify charging system output and starter function. Have your dealer verify injection pump timing and final-drive seal condition before finalizing a purchase, since both are safety- and cost-relevant repairs.
Is there community discussion specific to the BA100-1 mobile crusher application of this engine?
Discussion specific to the BA100-1 crusher application is thin compared to the PC60-7/PC70-7 excavator hosts. General guidance for this engine family in crusher use follows the same pattern as the excavator hosts: loss of power, rising fuel consumption, or overheating point to airflow restriction, injector wear, or a fuel delivery fault, and contamination or extended service intervals accelerate wear faster in crusher duty than in excavator duty given the dust environment. Beyond that general guidance, owner-reported specifics for the BA100-1 are not well documented in public forums, so verify condition and service history directly with the seller or a dealer rather than relying on community consensus.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
Need a specific 4D95LE-2A(S/N 100005-UP) part?
Search live OEM part data, check fitment, and cross-reference alternatives with Heavy Parts AI.