Komatsuengine(no series)
Komatsu SAA6D140E-3B-8(S/N 110001-UP)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu SAA6D140E-3B-8 engine powers the D155AX-5 bulldozer, a heavy-class crawler dozer designed for mining, quarry, and large-scale earthmoving applications. Production for this specific engine serial range (110001-UP) spans from approximately 2001 to 2005. The machine weighs approximately 1620 kg (3,571 lb) as a takeout unit, while the complete dozer configuration operates in the heavy class with weights varying by configuration and attachment package. The SAA6D140E-3B-8 succeeded the mechanically governed SDA6D140E-2E-9 in the D275A-5 lineage and was later replaced by the SAA6D140E-5 in the D275A-5R model. Configurations offered include standard dozer, LGP (Low Ground Pressure), and PX (Powerdozer) variants.
Across the D275A-5 production life, Komatsu transitioned from the pre-electronic SDA6D140E-2E-9 to the electronically controlled SAA6D140E-3 generation without changing the dozer model designation, eventually moving to the larger SAA6D140E-5 in the D275A-5R. The SAA6D140E-3B-8 remains significant in the used and parts market because its turbocharged, aftercooled design offers a balance of power and serviceability. As factory supply shifts to newer generations, demand for rebuilt injection pumps, turbochargers, and take-off components for this engine has grown to maintain early-serial D275A-5 dozers in operation.
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 SAA6D140E-3B-8(S/N 110001-UP) specifications
Engine
| Model | SAA6D140E-3B-8 |
| Series/Generation | SAA6D140E-3 |
| Cylinders | 6 |
| Displacement | 15.2 L (930 in³) |
| Bore | 140 mm (5.51 in) |
| Stroke | 150 mm (5.91 in) |
| Type | Water-cooled, turbocharged, after-cooled, common rail direct injection diesel |
| Emissions Tier | Tier 4 Final / EU Stage V (varies by configuration/series) |
Weights
| Note | Operating and shipping weights are machine-specific, not engine-specific. The SAA6D140E-3B-8 engine is used in multiple machine classes (excavators, dozers, wheel loaders, haulers). Specific weight values for this engine serial range are not documented in the source text. |
Dimensions
| Note | Transport dimensions are machine-specific. The source text does not provide dimensions for the engine assembly itself or for the specific machines using the SAA6D140E-3B-8 engine in the S/N 110001-UP range. |
Performance
| Note | Performance metrics (travel speed, lift capacity, etc.) are machine-specific. The source text does not provide performance figures for the specific SAA6D140E-3B-8 engine in the S/N 110001-UP range. Related SAA6D140E variants show power ratings ranging from 337 kW (451 hp) to 502 kW (672 hp) depending on the machine application and generation. |
Service capacities (summary)
| Note | Fluid capacities are machine-specific. The source text does not provide fuel tank, hydraulic system, engine oil, or cooling system capacities for the specific SAA6D140E-3B-8 engine in the S/N 110001-UP range. Recommended fluids include Komatsu EO engine oil, Komatsu hydraulic oil, and Komatsu Super-coolant AF-NAC. |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
Komatsu SAA6D140E-3B-8(S/N 110001-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 SAA6D140E-3B-8(S/N 110001-UP) beyond the schedule
Predictive Maintenance & Fluid Analysis
Utilize KOWA (Komatsu Oil Wear Analysis) at every major service interval to monitor the SAA6D140E-3B-8 engine and hydraulic system health. Analyze samples for wear metals such as iron or copper, and contaminants like silicon or sodium. Regular monitoring of transmission fluid levels and quality prevents premature clutch degradation in the full-automatic powershift transmission. Track KOMTRAX telematics data for load frequency and fault codes to anticipate service needs before failure occurs.
Corrective & Common Repairs
Address common SAA6D140E-3B-8 issues by inspecting the KTR110L turbocharger for boost leaks and checking the high-pressure common rail system for injector leaks. Verify the integrity of the air-to-air aftercooler cores for coolant contamination. Inspect the flywheel ring gear and housing assembly for wear, particularly on D155AX-5 models. Replace worn belts and hoses during the 2,000-hour service to prevent sudden breakdowns in remote mining or quarry sites.
Overhaul & Rebuild Points
Plan engine overhaul based on KOWA analysis results and compression testing. Key rebuild points include the cylinder head assembly, valve springs, and cylinder block liners. Inspect the oil pan for damage, noting variations between D155AX-5 and WA500-3 applications. Replace the flywheel assembly and ring gear if excessive wear is detected. Ensure the front cover and bearing caps are torqued to spec during reassembly to maintain cylinder pressure and oil integrity.
Seasonal & Environment Servicing
For the -40°C specification variant of the HM350-1 articulated dump truck, verify cold-start procedures and coolant concentration for extreme climates. In dusty environments, clean the radiator and oil cooler fins daily to prevent overheating. Check the air filter restriction indicator frequently and replace the outer element as needed. Ensure the DEF system is protected from contamination and that the fuel water separator is drained daily to prevent injector damage in humid or wet conditions.
SAA6D140E-3B-8(S/N 110001-UP) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 07281-00197 | Clamp,(With Pre-Fuel Filter) | Fuel system service | Check fitment → |
| 6217-71-6200 | Fuel Filter Ass'Y | Fuel system service | Check fitment → |
| 6217-71-6210 | Head,Fuel Filter | Fuel system service | Check fitment → |
| 6217-71-6211 | Head, Fuel Filter | Fuel system service | Check fitment → |
| ND092220-0040 | Filter,Fuel | Fuel system service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
SAA6D140E-3B-8(S/N 110001-UP) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| CA115 | Engine crankshaft speed sensor and backup speed sensor failure | Broken sensor, wiring issue, or connector corrosion | Replace the speed sensor and verify voltage at the pin connector |
| CA111 | Engine controller internal fault | Internal abnormality in the engine controller | Replace or reprogram the ECM |
| CA441 | Battery voltage too low | Alternator failure, battery degradation, or loose connections | Replace the alternator or battery; check the voltage regulator |
| CA442 | Battery voltage too high | Alternator regulator failure or charging system malfunction | Replace the alternator or battery; check the voltage regulator |
| CA122 | Intake air pressure sensor feedback voltage too high | 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 |
| 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 |
| CA452 | Common rail pressure sensor feedback value too low | Malfunction in the rail sensor or low pressure 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, engine load cycle, or operator misuse |
| CA689 | Engine speed sensor fault | Sensor failure or signal phase abnormality | Replace the corresponding sensor or inspect the sensor gap |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
SAA6D140E-3B-8(S/N 110001-UP) attachments & work tools
Excavator Buckets
The PC750-6, PC750LC-6, PC750-7, PC800-6, and PC800-7 excavators utilize standard and heavy-duty digging buckets. Factory specifications for these models list bucket capacities ranging from 2.8 to 6.1 cubic meters, varying by configuration and series.
Dozer Blades
The D155AX-5 bulldozer (serial 110001–the OEM part reference) and D275A-5/D275AX-5 dozers are equipped with straight or angle dozer blades. The D275A-5 is a roughly 50-tonne class machine designed for mining and heavy earthmoving, utilizing a robust X-frame structure for stability.
Loader Buckets
The WA500-3 wheel loader is fitted with standard or heavy-duty buckets for material handling. The WA500-8 variant, powered by the SAA6D140E-7, lists an operating weight of 34.875 to 36.130 metric tons, indicating the size class for compatible bucket capacities.
Dump Truck Bodies
The HD325-6 rigid dump truck utilizes a body with a heap capacity of 24.0 cubic meters and a nominal payload of 36.5 metric tons. The HD405-8 variant lists a heap capacity of 27.3 cubic meters and a payload of 40.0 metric tons.
Coupler/Mounting Systems
Excavator models PC750 and PC800 series use standard hydraulic quick coupler interfaces for bucket attachment. Dozer models D155AX-5 and D275A-5 utilize fixed mounting points for blade attachment, with specific dimensioning for the D155AX-5 (110001–the OEM part reference) noted in engine assembly manuals.
Hydraulic Kit/Arrangement Notes
Excavator buckets require standard high-pressure hydraulic lines connected to the main boom and stick circuits. Loader buckets on the WA500 series require auxiliary hydraulic circuits for tilt and curl functions, integrated into the machine's primary hydraulic system.
Factory Configurations/Guarding
The D275A-5 dozer features a robust X-frame structure for stability on uneven terrain. The PC900 series, also using the SAA6D140E engine family, is designed with a compact design for maneuverability in tight spaces and diverse environments.
All SAA6D140E-3B-8(S/N 110001-UP) assemblies by section
Every catalogued assembly group for the Komatsu SAA6D140E-3B-8(S/N 110001-UP). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Engine
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : After Cooler (Chassis Mount)(#110003-)
| 62***00 | After Cooler A | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : After Cooler (Chassis Mount)(#110812-)
| 78***03 | Controller | 1 |
| 78***04 | Controller, Engine | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Air Intake Manifold(#110014-)
| 01***30 | Bolt | 1 |
| 01***12 | Bolt,(See Fig. K0210-16a0) | 2 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 18 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Air Vent(#110014-)
| 01***20 | Bolt,(Forwarded Individually Parts) | 1 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 1 |
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Alternator (50a) (Hardening Pulley) (Inner Parts)(#110014-)
| 60***10 | Alternator A. (50a) | 1 |
| KD***21 | Rear Bracket Assembly | 1 |
| KD***70 | Bushing,Insulate | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Alternator (50a) (Inner Parts)(#110014-)
| 60***10 | Alternator A. (50a) | 1 |
| KD***21 | Rear Bracket Assembly | 1 |
| KD***70 | Bushing,Insulate | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Alternator (75a) (Inner Parts)(#110014-)
| 60***10 | Alternator A. (75a) | 1 |
| SD***X0 | Coil Assembly | 1 |
| SD***X0 | Washer | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Alternator Mounting (50a) (Except Japan)(#110014-)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 3 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***60 | Bolt,For Weight Adjusting Bolt | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Alternator Mounting (50a)(#110014-)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 3 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***60 | Bolt,For Weight Adjusting Bolt | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Alternator Mounting (75a) (Except Japan)(#110014-)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 3 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***60 | Bolt,For Weight Adjusting Bolt | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Camfollower
| 04***12 | Ring, Retaining | 4 |
| 61***30 | Pin,Dowel | 12 |
| 61***20 | Ball | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Camfollower Cover
| 61***91 | Packing,(See Fig.A2060) | 9 |
| 62***10 | Cover, Camfollower | 3 |
| 62***71 | Screw | 9 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Camshaft
| 01***20 | Bolt (M12-1.75x20) | 2 |
| 04***25 | Key, Plain Woodruff | 1 |
| 62***12 | Camshaft Assembly | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Common Rail (Inner Parts)(#110014-)
| 62***11 | Rail Ass'Y,(See Fig.A4010-E3u9) | 1 |
| ND***20 | Picco Ring | 7 |
| ND***40 | Limiter Assembly, Fuel Pressure | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Common Rail (Low-Viscosity Fuel Spec.) (Regulation Of Epa And Eu 2nd) (Inner Parts)(#111634-)
| 62***11 | Rail Ass'Y,(See Fig.A4010-E3u9) | 1 |
| ND***20 | Picco Ring | 7 |
| ND***40 | Limiter Assembly, Fuel Pressure | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Cooling Fan(#110014-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 60***50 | Fan, Suction | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Corrosion Resistor(#110003-)
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 2 |
| 01***35 | Bolt, Mount Bracket To Floor | 4 |
| 01***00 | Bolt (M10-1.50x100) | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Corrosion Resistor(#110014-)
| 01***95 | Capscrew | 1 |
| 01***30 | Bolt,(Water Separator Spec.) | 1 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Crank Pulley (For Hm400-1) (Except Japan)(#110014-)
| 04***24 | Pin,Dowel (For No.3 Housing) | 1 |
| 04***66 | V-Belt, (For Freon Compressor) | 1 |
| 62***20 | Bolt | 6 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Crank Pulley(#110014-)
| 04***24 | Pin,Dowel (For No.3 Housing) | 1 |
| 04***66 | V-Belt, (For Freon Compressor) | 1 |
| 62***20 | Bolt | 6 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Crankshaft
| 04***28 | Pin, Dowel - Transmission Case, Pin-Dowel | 1 |
| 61***30 | Key Parallel | 1 |
| 62***00 | Bearing Assembly | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Cylinder Block
| 01***25 | Screw | 12 |
| 01***45 | Washer,(Without R.O.P.S.) | 14 |
| 01***32 | Washer, (Without Emergency Steering) | 12 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Cylinder Block Cover And Oil Filler (With Vandalism Protection)(#110238-)
| 01***50 | Bolt,(Spark Arrester Spec.) | 12 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 4 |
| 01***16 | Bolt - Starting Motor Ground Cable | 2 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Cylinder Block Cover And Oil Filler(#110014-)
| 01***50 | Bolt,(Spark Arrester Spec.) | 12 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 4 |
| 01***16 | Bolt - Starting Motor Ground Cable | 2 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Cylinder Block Gasket Kit(#110003-)
| 07***60 | O-Ring,(For Pc750?800?1800) (A2610) | 1 |
| 07***50 | O-Ring,Front Cover Plate | 1 |
| 07***42 | O-Ring,(See Fig.A3310) | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Cylinder Head Gasket Kit(#110003-)
| 02***75 | O-Ring,(See Fig.A1310) | 2 |
| 07***25 | O-Ring,(For Pc1800e-6)(See Fig.A3110) | 6 |
| 07***11 | O-Ring,(See Fig.A4210) | 6 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Cylinder Head(#110150-)
| 01***20 | Bolt (M10-1.75x120) | 6 |
| 01***45 | Washer, Spring | 36 |
| 07***25 | O-Ring,(For Pc1800e-6)(See Fig.A3110) | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Engine Mounting(#110014-)
| 01***45 | Capscrew - M16 | 8 |
| 01***15 | Bolt | 7 |
| 01***23 | Washer, Flat | 7 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Exhaust Brake (Inner Parts)(#110238-111082)
| 62***00 | Exhaust Brake Ass'Y | 1 |
| JK***66 | Bolt | 2 |
| JK***73 | Lever | 2 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Exhaust Brake (Inner Parts)(#111083-)
| 62***01 | Exhaust Brake Assembly | 1 |
| MY***31 | Brake Valve Assembly | 1 |
| MY***07 | Cover | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Exhaust Brake(#110238-)
| 01***35 | Capscrew | 1 |
| 01***40 | Capscrew | 5 |
| 01***45 | Capscrew | 2 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Exhaust Manifold(#110003-)
| 01***55 | Screw | 2 |
| 01***00 | Screw | 22 |
| 07***08 | Plug,(For W/O. Corrosion Resistor) | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Fan Drive(#110014-)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 6 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***95 | Capscrew - M12 | 2 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Fan Pulley And V-Belt (Hardening Pulley Spec.)(#110014-)
| 01***85 | Bolt,(For Reversible Fan) | 6 |
| 04***60 | V-Belt Set | 1 |
| 62***50 | Pulley? Hardening | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Fan Pulley And V-Belt(#110014-)
| 01***85 | Bolt,(For Reversible Fan) | 6 |
| 04***59 | V-Belt Set | 1 |
| 62***90 | Pulley,Non Hardening | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Flywheel Housing(#110014-)
| 01***45 | Capscrew - M16 | 8 |
| 01***65 | Capscrew | 2 |
| 01***10 | Bolt - Relay And Flasher Mounting | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Flywheel(#110003-)
| 56***81 | Bearing,Ball | 1 |
| 61***51 | Gear, Ring | 1 |
| 62***50 | Bolt | 6 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Front Cover Mounting And Breather(#110014-)
| 01***16 | Bolt - Box Mounting | 2 |
| 01***90 | Capscrew | 2 |
| 01***80 | Bolt,For Weight Adjusting Bolt | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Front Cover(#110014-)
| 07***16 | Plug, Expansion | 3 |
| 62***11 | Cover,Front | 1 |
| 62***12 | Cover, Front | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Fuel Control (Chassis Mount)(#110014-110811)
| 78***03 | Controller | 1 |
| (7***0) | Controller | 1 |
| (7***2) | Controller | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Fuel Filter(#110014-)
| 01***40 | Screw | 1 |
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 4 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Fuel Injector
| 01***10 | Bolt - Relay And Flasher Mounting | 6 |
| 01***35 | Bolt | 6 |
| 01***70 | Bolt | 6 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Fuel Piping(#110003-)
| 01***25 | Screw | 3 |
| 01***30 | Bolt,See Fig. K4010-17a0 | 15 |
| 01***16 | Bolt, Mount Solenoid Valve | 2 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Fuel Pump Supply And Return Piping (Low-Viscosity Fuel Spec.) (Regulation Of Epa And Eu 2nd)(#111634-)
| 01***30 | Bolt,See Fig. K4010-17a0 | 4 |
| 01***35 | Bolt | 2 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Fuel Pump Supply And Return Piping(#110014-)
| 01***30 | Bolt,See Fig. K4010-17a0 | 4 |
| 01***35 | Bolt | 2 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Fuel Return(#110014-111369)
| 01***16 | Bolt - Starting Motor Ground Cable | 3 |
| 01***60 | Bolt - Upper Cooler Inlet Tubemounting | 1 |
| 07***12 | Gasket,(Without Air Compressor Type) (K2) | 3 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Fuel Return(#111370-)
| 01***16 | Bolt - Starting Motor Ground Cable | 4 |
| 01***60 | Bolt - Upper Cooler Inlet Tubemounting | 1 |
| 01***70 | Screw | 2 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Fuel Supply Pump (Feed Pump) (Inner Parts)(#110014-)
| ND***70 | Washer,Union | 6 |
| ND***10 | Spring, Check Valve | 2 |
| ND***42 | Screw | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Fuel Supply Pump (Feed Pump) (Low-Viscosity Fuel Spec.) (Regulation Of Epa And Eu 2nd) (Inner Parts)(#111634-)
| ND***70 | Washer,Union | 6 |
| ND***10 | Spring, Check Valve | 2 |
| ND***42 | Screw | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Fuel Supply Pump (Pump) (Inner Parts)(#110014-)
| 62***10 | Fuel Pump Ass'Y | 1 |
| ND***70 | Washer,Union | 5 |
| ND***60 | Screw | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Fuel Supply Pump (Pump) (Low-Viscosity Fuel Spec.) (Regulation Of Epa And Eu 2nd) (Inner Parts)(#111634-)
| 62***30 | Fuel Pump Ass'Y | 1 |
| ND***70 | Washer,Union | 5 |
| ND***60 | Screw | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Fuel Supply Pump And Common Rail Mounting (Low-Viscosity Fuel Spec.) (Regulation Of Epa And Eu 2nd)(#111634-)
| 01***35 | Bolt,(F4320-52a0 -5 ) | 4 |
| 01***12 | Nut | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Fuel Supply Pump And Common Rail Mounting(#110014-)
| 01***35 | Bolt,(F4320-52a0 -5 ) | 4 |
| 01***12 | Nut | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Fuel Supply Pump Bracket And Connection Cover(#110003-)
| 01***12 | Bolt,(See Fig. K0210-16a0) | 4 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 4 |
| 01***20 | Bolt - Mount Risers To Cab Floor | 2 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Fuel Supply Pump Lubricator(#110003-)
| 07***12 | Gasket,(Without Air Compressor Type) (K2) | 2 |
| 07***10 | Screw, Banjo Connector (M10-1.25x20) | 1 |
| 62***10 | Tube, Supply | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Head Cover
| 62***10 | Cover, Cylinder Head | 6 |
| 62***20 | Gasket,(See Fig.A1110) | 6 |
| 62***30 | Gasket (K1) | 6 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Head Cover Bolt
| 01***55 | Screw | 18 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Heat Shield (1/2) Turbocharger And Exhaust Manifold (Exhaust Brake Spec.)(#110238-)
| 01***16 | Bolt - Starting Motor Ground Cable | 2 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
| 01***35 | Bolt, Mount Bracket To Floor | 9 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Heat Shield (2/2) Exhaust Brake(#110238-)
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Heat Shield(#110014-110029)
| 01***40 | Capscrew | 2 |
| 01***16 | Bolt - Starting Motor Ground Cable | 8 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Heat Shield(#110030-)
| 01***40 | Capscrew | 2 |
| 01***16 | Bolt - Starting Motor Ground Cable | 2 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Idler Gear
| 01***30 | Bolt - M8 X 30lg | 6 |
| 61***60 | Pin, Dowel | 1 |
| 61***22 | Bolt | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Name Plate And Caution Plate (Japanese-English) (Regulation Of Epa And Eu)
| 04***50 | Screw | 4 |
| 61***10 | Plate? License,(Limited Supply) | 1 |
| 61***11 | Plate? License,(Limited Supply) | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Oil Cooler
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 13 |
| 01***60 | Bolt - Upper Cooler Inlet Tubemounting | 2 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Oil Filter And Piping(#110003-)
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 6 |
| 01***35 | Bolt, Mount Bracket To Floor | 4 |
| 01***95 | Bolt,(For Shipping) | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Oil Level Gauge(#110014-)
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 1 |
| 01***08 | Nut,See Fig. K4010-04a0 | 1 |
| 04***10 | Clip | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Oil Pan And Suction Tube(#110014-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,(With Body Positioner) | 1 |
| 01***12 | Bolt,(See Fig. K0210-16a0) | 3 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Oil Pump
| 01***25 | Bolt,(Rear Attachment Less) | 4 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 1 |
| 01***40 | Bolt,For Weight Adjusting Bolt | 2 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Piston
| 02***13 | Pin, Dowel | 2 |
| 04***20 | Ring, Retaining | 12 |
| 62***10 | Bolt | 2 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Rocker Arm
| 01***08 | Nut,R.H. Thread | 2 |
| 01***32 | Washer, (Without Emergency Steering) | 6 |
| 04***14 | Pin, Dowel | 18 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Starting Motor (11kw) (Inner Parts)(#110001-111453)
| 60***21 | Starting Motor Assembly (11kw) | 1 |
| KD***40 | Spring,Spring | 4 |
| KD***57 | Bearing, Ball, Front | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Starting Motor Mounting (11kw)
| 01***40 | Bolt (Kit) | 3 |
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 08***19 | Band,(Without Air Conditioner) | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Thermostat And Water Connector(#110014-)
| 01***30 | Bolt,(Not Used When Towing Winch) | 2 |
| 01***16 | Bolt - Starting Motor Ground Cable | 2 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 3 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Turbocharger (Ktr110l-585e) (Inner Parts)(#110014-)
| 01***16 | Bolt | 4 |
| 01***16 | Bolt | 8 |
| 04***08 | Pin, Dowel | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Turbocharger And Oil Piping(#110014-)
| 01***14 | Bolt - Fuel Sensor Mounting | 1 |
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Vibration Damper(#110014-)
| 01***30 | Bolt,(Not Used When Towing Winch) | 6 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 6 |
| 62***00 | Damper Ass'Y | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Water Pump Gasket Kit(#110003-)
| 02***37 | O-Ring,(For Pc750?1800) (A5010) | 2 |
| 07***45 | O-Ring,(F4320-61a0 -16 ), O-Ring; Was 07000-02145 | 1 |
| 07***70 | O-Ring,(For Pc1800e-6)(See Fig.A2041) | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Water Pump(#110014-)
| 01***80 | Bolt (M10-1.50x80) | 1 |
| 01***95 | Bolt,(For Shipping) | 3 |
| 01***30 | Bolt | 3 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Wiring (1/3) Switch And Heater(#110014-)
| 01***14 | Bolt,(W/Joy Stick Str.)(W/O Heater) | 2 |
| 01***20 | Bolt,(Forwarded Individually Parts) | 2 |
| 01***55 | Bolt, Mount Dryer To Bracket And Frame | 2 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Wiring (2/3) Fuel Injector(#110014-)
| 01***25 | Bolt - Relay Mounting | 6 |
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 04***10 | Clip | 1 |
Komatsu : Saa6d140e-3b-8(S/N 110001-Up) : Engine : Wiring (3/3) Sensor(#110014-)
| 01***16 | Bolt - Starting Motor Ground Cable | 4 |
| 01***20 | Bolt | 2 |
| 04***10 | Clip,(For Mono Lever Steering) | 2 |
SAA6D140E-3B-8(S/N 110001-UP) serial number reference
The PIN plate is located on the EPA/EU emissions plate, typically riveted near the engine bay or behind the cab on export-market machines. The 17-character ISO PIN begins with the World Manufacturer Identifier (WMI) 'KMT' for Komatsu, followed by model and configuration codes; the engine serial number is stamped separately on the engine block, usually on the left side near the injection pump.
| Prefix | Identifies | Notes |
|---|---|---|
| SAA6D140E-3B-8 | Engine Model | Komatsu SAA6D140E-3B-8 engine. Serial range 110001-UP. Factory spec sheet lists S/N 110003-UP as a variant; verify with dealer if 110001-110002 is included in your specific catalog version. No 3-character PIN prefixes are documented for this engine-specific serial range in the provided sources. The 17-character ISO PIN is used for export-market machines built since approximately 2003, but specific prefix codes for this engine are not listed. |
Frequently asked questions
What engine does the Komatsu D155AX-5 use?
The D155AX-5 bulldozer uses the Komatsu SAA6D140E-3 series engine. For serial numbers 110001-UP, the specific engine is the SAA6D140E-3B-8.
What is the operating weight of the Komatsu D155AX-5?
Operating weight varies by configuration, series, and attachment package. The D155AX-5 is a heavy-class dozer with weights typically exceeding 60,000 lb (27,215 kg) depending on the counterweight, track shoe, and boom/stick setup.
What replaced the Komatsu D275A-5?
The D275A-5 was eventually replaced by the D275A-5R, which utilizes the newer SAA6D140E-5 engine rated at approximately 335 kW (449 HP).
What SAA6D140E-3B-8(S/N 110001-UP) owners discuss
What is the net horsepower rating for the Komatsu SAA6D140E-3B-8 engine?
The net horsepower rating is 196 HP at 2050 rpm. This specification applies to the SAA6D140E-3 series engines used in specific Komatsu forestry and heavy equipment applications. Variations in rated power may occur depending on the specific machine model and regional emissions configuration. have your dealer verify the exact rating for your machine serial number.
What are the common hydraulic behaviors and failure patterns associated with Komatsu excavators using this engine series?
Operators report that hydraulic weakness often correlates with engine performance rather than pump failure. If all functions (boom, arm, bucket, swing, travel) become slow simultaneously, the issue typically stems from shared hydraulic supply, pump control, or engine speed regulation rather than individual cylinders. A common diagnostic pattern is hydraulics working well when cold but becoming weak when hot, indicating excessive internal leakage in the pump, main control valve, or motors due to decreased oil viscosity. Dash 6 series machines are noted for specific valve problems, particularly on smaller models, which can affect load sensing and flow distribution.
What undercarriage and wear patterns are typical for machines powered by the SAA6D140E-3B-8?
Common wear patterns include degradation of track pads, bushings, and bearings, leading to noise and vibration. Track tension issues are frequent, often requiring adjustment of the adjuster components. Operators note that the Komatsu line is designed such that major components like pumps and engines may wear out in close succession, impacting resale value. Mechanical resistance in the undercarriage, such as mud packed into track assemblies or worn rollers, can cause the machine to pull to one side or travel unevenly. Final drive noise is often linked to oil level and contamination levels.
What are the known engine quirks and cooling system behaviors for the SAA6D140E-3B-8?
The engine is turbocharged and air-to-air aftercooled. Common issues include overheating during heavy excavation due to debris packed between the radiator, hydraulic oil cooler, and charge-air cooler. A machine may appear clean externally while material blocks the spaces between heat exchangers. Engine performance issues, such as power loss under load, are frequently caused by restricted airflow (air filters, intake hoses) or fuel delivery problems (fuel filters, water separator). Owners report that intermittent starting or random shutdowns can be triggered by unstable power supplies or faulty sensors affecting the electronic control systems.
What are the common electrical and sensor issues reported by owners?
Komatsu excavators rely heavily on electronic control systems, where a single faulty sensor or unstable power supply can trigger multiple warning signals. Common electrical issues include intermittent starting, dashboard failures, and random shutdowns. Fault codes related to the engine coolant temperature sensor circuit (such as E-14 in later series) indicate abnormal readings detected by the Engine Control Module (ECM). Owners are advised to check battery state of charge, terminals, and chassis grounds before diagnosing starter or ECM failures. Voltage collapse under load during starting is a frequent false indicator of starter failure.
What specific fluids and lubricants should be used for the SAA6D140E-3B-8 engine and hydraulic system?
Komatsu specifies the use of Komatsu EO diesel engine oil for the engine lubrication system. For the hydraulic system, Komatsu TO hydraulic oil is recommended. Axle and powertrain systems require Komatsu AXO or HO fluids. Super-coolant AF-NAC is specified for the cooling system.
What should be checked when buying a used machine with the SAA6D140E-3B-8 engine?
Verify the exact serial number prefix to confirm the engine model, as Komatsu transitioned between engine generations (e.g., from SDA6D140E-2E-9 to SAA6D140E-3) within the same machine model designations. Check the condition of the cooling package, specifically the spaces between the radiator, hydraulic oil cooler, and charge-air cooler, as blockage is common. Test hydraulic performance both cold and hot to identify internal leakage. Inspect the undercarriage for uneven wear and track tension issues. Check for fault codes related to the ECM and coolant temperature sensors. Verify the history of fuel and air filter replacements to assess potential injector or turbocharger wear.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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