Komatsuengine(no series)

Komatsu SA6D140E-2B-7(S/N 22537-UP)

Maintenance schedule, common problems & OEM parts breakdown

Search live SA6D140E-2B-7(S/N 22537-UP) parts

The Komatsu SA6D140E-2B-7 is a 15.24-liter (930 cu in) inline-six diesel engine belonging to the 6D140-2 series. It is a water-cooled, turbocharged, and aftercooled unit designed for heavy-duty applications, most notably powering the Komatsu D275A-5 crawler dozer. This specific engine arrangement (S/N 22537-UP) was utilized in the earlier production run of the D275A-5, a roughly 50-tonne class machine used in mining, quarry, and heavy earthmoving work. The host dozer carries an operating weight of approximately 49,850 kg (109,900 lb), varying by blade and undercarriage configuration. The SA6D140E-2B-7 represents a step down in displacement from the predecessor D275A-2's 6D170-family engine, holding comparable power through increased turbocharging and aftercooling. Later-serial D275A-5 chassis moved to the newer SDA6D140E-3 generation, and the line's successor, the D275A-5R, utilizes the larger SAA6D140E-5 engine.

Across the D275A-5's production life, Komatsu transitioned from the mechanically governed SA6D140E-2B-7 to the SDA6D140E-3 and eventually the electronically managed SAA6D140E-5 generations without changing the dozer's model designation. This shift reflects Komatsu's broader move toward more compact, higher-boost engines and modern emissions compliance. In the used and parts market, the SA6D140E-2B-7 remains valued for its mechanical simplicity and serviceability in remote or extreme-climate operations where diagnostic support is limited. As factory parts supply shifts toward the newer generations, demand grows for rebuilt injection pumps, turbochargers, and other take-off components to keep early-serial D275A-5 dozers running. The engine's predates modern exhaust-emissions regulation, operating as an uncontrolled/mechanical-era diesel design.

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 SA6D140E-2B-7(S/N 22537-UP) specifications

Engine

Model	SA6D140E-2B-7
Displacement	15.24 L (930.1 cu in)
Cylinders	6 inline
Aspiration	Turbocharged with aftercooler
Gross Power	368 kW (493 hp) @ 1900 rpm
Net Power	368 kW (493 hp) @ 1900 rpm
Emissions Tier	Tier 2 / EC Stage II

Weights

Operating Weight	varies by configuration/series
Shipping Weight	not documented for this exact serial range — verify with your dealer
Ground Pressure	not documented for this exact serial range — verify with your dealer

Dimensions

Transport Length	not documented for this exact serial range — verify with your dealer
Transport Width	not documented for this exact serial range — verify with your dealer
Transport Height	not documented for this exact serial range — verify with your dealer
Track Gauge	not documented for this exact serial range — verify with your dealer
Ground Clearance	not documented for this exact serial range — verify with your dealer

Performance

Travel Speeds	not documented for this exact serial range — verify with your dealer
Gradeability	not documented for this exact serial range — verify with your dealer

Service capacities (summary)

Fuel Tank	not documented for this exact serial range — verify with your dealer
Hydraulic System	not documented for this exact serial range — verify with your dealer
Engine Oil	not documented for this exact serial range — verify with your dealer
Cooling System	not documented for this exact serial range — verify with your dealer

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

SA6D140E-2B-7(S/N 22537-UP) fluids & capacities

System	Capacity	Recommended fluid
Engine crankcase (with filter)	87–99 L (23–26 US gal)	Komatsu Genuine diesel engine oil (EO series, e.g. EO10W-30-DH / EO15W-40-DH) meeting JASO DH-1, API CI-4 and ACEA E7. Grade is picked from the machine's viscosity-by-ambient-temperature chart — lighter 10W-30 for cold climates, 15W-40 for temperate to warm climates.
Cooling system (radiator and engine block)	99–107 L (26–28 US gal)	Komatsu Super Coolant AF-NAC, factory pre-mixed antifreeze/coolant for year-round use and extended service life. Top off with the same AF-NAC concentration; do not mix coolant types.
Fuel tank	not applicable to this item	This is a bare engine assembly fitted across several Komatsu machine chassis depending on arrangement; fuel, transmission, hydraulic, final-drive and axle capacities and fluid choices are set by the host machine's own operation & maintenance manual, not the engine documentation.
Transmission/powertrain compartments	not applicable to this item	This is a bare engine assembly fitted across several Komatsu machine chassis depending on arrangement; fuel, transmission, hydraulic, final-drive and axle capacities and fluid choices are set by the host machine's own operation & maintenance manual, not the engine documentation.
Final drives	not applicable to this item	This is a bare engine assembly fitted across several Komatsu machine chassis depending on arrangement; fuel, transmission, hydraulic, final-drive and axle capacities and fluid choices are set by the host machine's own operation & maintenance manual, not the engine documentation.
Hydraulic system and tank	not applicable to this item	This is a bare engine assembly fitted across several Komatsu machine chassis depending on arrangement; fuel, transmission, hydraulic, final-drive and axle capacities and fluid choices are set by the host machine's own operation & maintenance manual, not the engine documentation.
Axles/differentials	not applicable to this item	This is a bare engine assembly fitted across several Komatsu machine chassis depending on arrangement; fuel, transmission, hydraulic, final-drive and axle capacities and fluid choices are set by the host machine's own operation & maintenance manual, not the engine documentation.
Grease (spec only)	n/a	Komatsu Genuine multipurpose grease (lithium EP / moly-EP type) for any external linkage or mounting points on the engine or its brackets, where equipped. Follow the host machine's lubrication interval chart.

Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.

Komatsu SA6D140E-2B-7(S/N 22537-UP) maintenance schedule

Service interval	Tasks
Every 10 h	Check engine oil level and top up with the cold-weather-grade oil before starting each shift. Check coolant level in the sub-tank and look for leaks around the block, water pump, and turbocharger housing. Drain water and sediment from the fuel tank and fuel pre-filter/water separator. Check the corrosion resistor cartridge sight glass on the coolant circuit and replace the element if discolored. Inspect fan belt tension and condition for cracking from repeated cold starts. Check turbocharger intake ducting and clamps for looseness or cracks.
Every 250 h	Change engine oil and replace the oil filter, using the viscosity grade specified for the operating climate. Replace the fuel filter cartridge. Clean or replace the air cleaner outer element and inspect the safety element. Grease the injection pump and governor linkage points. Clean the radiator and oil cooler cores of debris and packed dust. Check turbocharger and exhaust manifold mounting bolts for correct torque.
Every 500 h	Replace the corrosion resistor cartridge on the engine coolant circuit. Check and adjust fan belt tension; replace a worn or glazed belt. Clean the crankcase breather and fuel tank breather. Inspect the turbocharger for oil seepage at the compressor and turbine seals. Check engine mounting bolts and isolators for looseness. Test coolant freeze-point protection ahead of continued cold-region service.
Every 1,000 h	Replace the fuel pre-filter/water separator element and the main fuel filter. Check and adjust valve clearance per the mechanical fuel-injection engine's service settings. Inspect and clean the turbocharger compressor and turbine housings. Sample engine oil for wear-metal and coolant-contamination analysis. Check injection pump timing and governor linkage adjustment. Inspect the aftercooler core and intake piping for leaks or fouling.
Every 2,000 h	Drain and replace engine coolant; flush the cooling system and renew the corrosion resistor. Inspect the fuel injection pump and nozzles; test and reset injection timing. Check turbocharger shaft end-play and bearing wear; rebuild or replace if out of tolerance. Re-torque cylinder head bolts to the mechanical-injection engine's specification. Check the water pump and thermostat for wear and correct opening temperature. Inspect the cold-start aid circuit (intake heater or ether-assist system) fitted for -50C operation.
Every 4,000 h	Remove and inspect cylinder liners, pistons, and rings against factory wear tolerances. Rebuild or replace the turbocharger as a unit. Check crankshaft main and rod bearing clearances. Inspect the camshaft and timing gear train for wear.
Every 8,000 h	Perform a top-end overhaul: recondition the cylinder head, valve seats, and guides. Replace the injection nozzles and pump as a matched set. Inspect the block for cold-climate stress cracking near coolant passages. Rebuild the turbocharger core assembly, replacing wear-prone bearings and seals.

Servicing the SA6D140E-2B-7(S/N 22537-UP) beyond the schedule

Predictive Maintenance & Fluid Analysis

Run scheduled engine oil sampling on the SA6D140E-2B-7 to catch wear-metal trends before the mechanically governed injection pump or turbocharger bearings fail. This engine carries no ECM fault codes, so oil analysis and coolant testing are the primary early-warning tools. Track soot loading and iron/copper counts against baseline. Watch coolant freeze point and corrosion-resistor cartridge condition closely given the -50C spec. Log fuel filter differential pressure to predict injection pump wear on the D275A-5 it powers.

Corrective & Common Repairs

Typical corrective work on this engine centers on the mechanical governor and injection pump linkage, turbocharger seal seepage, and cracked or loose air intake ducting from constant thermal cycling in cold-region service. Corrosion resistor cartridge neglect leads to internal coolant passage pitting in the block and head, a frequent complaint on high-hour D275A-5 dozers. Fan belt and mounting isolator wear are common due to repeated cold starts. Address turbocharger shaft end-play and bearing wear at the 2,000-hour interval to prevent catastrophic failure.

Overhaul & Rebuild Points

At 4,000 hours, remove and inspect cylinder liners, pistons, and rings against factory wear tolerances. Check crankshaft main and rod bearing clearances and inspect the camshaft and timing gear train for wear. At 8,000 hours, perform a top-end overhaul: recondition the cylinder head, valve seats, and guides. Replace the injection nozzles and pump as a matched set. Inspect the block for cold-climate stress cracking near coolant passages and rebuild the turbocharger core assembly, replacing wear-prone bearings and seals.

Seasonal & Environment Servicing

For the -50C specification, inspect the cold-start aid circuit (intake heater or ether-assist system) at the 2,000-hour interval. Test coolant freeze-point protection ahead of continued cold-region service at 500 hours. Check the corrosion resistor cartridge sight glass daily; replace the element if discolored to prevent internal coolant passage pitting. Use lighter 10W-30 Komatsu EO series oil for cold climates and 15W-40 for temperate to warm climates. Ensure the fan belt is inspected for cracking from repeated cold starts during daily checks.

SA6D140E-2B-7(S/N 22537-UP) common service parts

Part number	Part	Notes
600-311-7132	Cartridge,Fuel Filter	Fuel system service	Check fitment →
6128-81-7042	Element Assembly, Air Cleaner	Air intake service	Check fitment →
09637-01163	Plate? Instruction,Air Cleaner (Double Element)	Air intake service	Check fitment →
09637-30163	Plate? Instruction,Air Cleaner (Single Element)	Air intake service	Check fitment →
09637-30263	Plate? Instruction,Air Cleaner Element Mainte	Air intake service	Check fitment →

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SA6D140E-2B-7(S/N 22537-UP) fault codes & troubleshooting

Code	Meaning	Likely cause	What to do
CA115	Engine crankshaft speed sensor and backup speed sensor failure	Faulty speed sensor, damaged wiring harness, or corroded connector at the sensor pin	Inspect the sensor wiring and connector for damage; replace the speed sensor if voltage is abnormal
CA451	Common rail pressure sensor feedback value too high	Malfunctioning rail pressure sensor, actual overpressure condition, or sensor wiring short	Diagnose the fuel rail pressure sensor circuit and check for physical blockages in pump lines
CA111	Internal engine controller (ECM) fault	Critical internal failure of the Electronic Control Module	Replace or reprogram the ECM
AA10NX	Air cleaner clogging	Blocked or dirty air filter element	Replace the air filter element
CA441	Battery voltage too low	Weak battery, failing alternator, or loose connections	Check the alternator output and battery health; replace if necessary
CA234	Engine overspeed	Throttle calibration error, engine load cycle issue, or operator misuse	Verify throttle calibration and inspect the engine load cycle
B@BCNS	Engine coolant overheating	Low coolant level, blocked radiator fins, or failed fan belt	Check radiator fins, fan belt condition, and coolant level
CA122	Intake air pressure sensor feedback voltage too high	Faulty intake pressure sensor or wiring issue	Verify the intake pressure sensor operation and inspect the wiring harness
CA2311	IMV (Idle Management Valve) solenoid valve failure	Failed IMV solenoid or open/short in the wire harness	Replace the IMV solenoid or inspect the wire harness for damage
CA153	Intake air temperature sensor feedback voltage too high	Faulty Intake Air Temperature (IAT) sensor	Replace or test the IAT sensor

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

SA6D140E-2B-7(S/N 22537-UP) attachments & work tools

Hydraulic Excavator Attachments

The SA6D140E-2B-7 engine powers the PC600-7 and PC600LC-7 hydraulic excavators, which utilize standard bucket configurations with capacities ranging from 3.2 to 4.6 cubic yards (2.4 to 3.5 cubic meters) depending on the specific boom and arm geometry. These machines employ a proprietary quick coupler system for rapid tool changes, with hydraulic flow requirements varying by configuration to support high-digging-force operations.

Wheel Loader Attachments

For the WA500-3 wheel loader class, the engine supports standard buckets with capacities typically between 3.5 and 4.5 cubic yards (2.7 to 3.4 cubic meters). The attachment interface uses a standard pin-on coupler system, and the hydraulic circuit is arranged to provide auxiliary flow for optional grapples or mulchers, with kit specifications varying by the specific machine build series.

Bulldozer Attachments

The D155AX-5 bulldozer platform utilizes semi-U or universal dozer blades with widths varying by configuration, typically ranging from 4.0 to 4.5 meters (13 to 15 feet). The mounting system relies on a heavy-duty pin-on blade carrier, and the hydraulic arrangement includes dedicated circuits for blade tilt and angle control, with specific guarding options available for extreme rock applications.

Articulated Dump Truck Attachments

The HM350-1 and HM400-1 articulated dump trucks are equipped with standard steel dump bodies with capacities varying by configuration, generally ranging from 28 to 36 cubic yards (21 to 27 cubic meters). The body mounting system uses a robust pivot and lift mechanism, with optional rock boxes or high-wall bodies available for specific mining or quarrying duties, requiring reinforced hydraulic lift circuits.

Generator Set Options

The engine is configured for the DCA400SSK generator set, which provides 400 kW of electrical power output. The mounting arrangement includes a specific flywheel housing and adapter plate to interface with the generator end, with cooling system modifications to handle the continuous duty cycle and heat rejection requirements of stationary power generation.

All SA6D140E-2B-7(S/N 22537-UP) assemblies by section

Every catalogued assembly group for the Komatsu SA6D140E-2B-7(S/N 22537-UP). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

Engine

Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : After Cooler Water Piping(#22537-30036)

01***16	Bolt, Battery To Frame Ground Wire Attaching	4
01***40	Bolt (Op)	2
01***65	Bolt - Return Line And Suction Linehose Clamps	2
07***00	Valve,Drain	2

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : After Cooler Water Piping(#30037-)

01***16	Bolt, Battery To Frame Ground Wire Attaching	4
01***40	Bolt (Op)	2
01***65	Bolt - Return Line And Suction Linehose Clamps	2
07***00	Valve,Drain	2

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Air Cleaner

01***16	Bolt, Battery To Frame Ground Wire Attaching	1
01***30	Bolt,(With Body Positioner)	4
01***35	Bolt,(F4320-52a0 -5 )	4
01***40	Bolt (Op)	2

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Air Intake Manifold And After Cooler(#22537-30036)

01***00	Bolt,(For Front Brake Release)	11
01***55	Bolt,(With Corrosion Resistor)	3
01***60	Bolt	7
01***80	Bolt,(With Corrosion Resistor)	2

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Air Intake Manifold And After Cooler(#30037-)

01***00	Bolt,(For Front Brake Release)	11
01***55	Bolt,(With Corrosion Resistor)	3
01***60	Bolt	7
01***80	Bolt,(With Corrosion Resistor)	2

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Air Vent(#25471-)

01***20	Bolt	1
01***16	Washer,Radio Controlled Slag Handling	1
07***15	Gasket,(Hd325?Pc750?800?1800) (A5010)	13
07***10	Screw, Banjo Connector (M10-1.25x20)	5

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Alternator (35a) (Inner Parts)

60***10	Alternator A. (35a)	1
60***11	Alternator A. (35a)	1
KD***50	Bracket,Rear	1
KD***70	Bushing,Insulate	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Alternator (35a) (With Hardening Pulley) (Inner Parts)(#25887-)

60***10	Alternator A. (35a)	1
KD***70	Bushing,Insulate	1
KD***40	Bushing,Insulate	1
KD***30	Collar,Insulate	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Alternator (50a) (Inner Parts)(#22537-26659)

60***70	Alternator A. (50a)	1
SD***X0	Coil Assembly	1
SD***X0	Washer	1
SD***X0	Bracket, Rear	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Alternator (50a) (With Hardening Pulley) (Inner Parts)(#25887-27970)

60***10	Alternator A. (50a)	1
SD***X0	Coil Assembly	1
SD***X0	Washer	1
SD***X0	Bracket, Rear	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Alternator (60a) (Inner Parts)(#26660-)

60***10	Alternator A. (60a)	1
KD***70	Bushing,Insulate	1
KD***40	Bushing,Insulate	1
KD***80	Bearing, Ball	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Alternator (60a) (With Hardening Pulley) (Inner Parts)(#27971-)

60***70	Alternator A. (60a),(See Fig.A6010-B4k6)	1
KD***70	Bushing,Insulate	2
KD***40	Bushing,Insulate	1
KD***80	Bearing, Ball	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Alternator Mounting (35a)

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
01***20	Screw	2

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Alternator Mounting (35a) (With Hardening Pulley)(#25887-)

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
01***20	Screw	2

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Alternator Mounting (50a) (With Hardening Pulley)(#25887-)

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
01***20	Screw	2

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Alternator Mounting (50a)(#22537-26659)

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
01***20	Screw	2

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Alternator Mounting (60a)(#26660-)

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
01***20	Screw	2

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Camfollower Cover

01***16	Bolt, Battery To Frame Ground Wire Attaching	1
01***30	Bolt,(With Body Positioner)	5
01***65	Bolt - Return Line And Suction Linehose Clamps	1
01***70	Bolt - Bracket And Oil Inlet Tubemounting	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Camfollower(#26075-)

04***12	Ring, Retaining	4
61***30	Pin,Dowel	12
61***20	Ball	1
62***10	Cam Follower Assembly	6

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Camshaft And Camfollower(#24649-26074)

01***20	Bolt (M12-1.75x20)	2
04***25	Key, Plain Woodruff	1
04***12	Ring, Retaining	4
61***20	Ball	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Camshaft(#26075-)

01***20	Bolt (M12-1.75x20)	2
04***25	Key, Plain Woodruff	1
62***12	Camshaft Assembly	1
62***20	Gear, Camshaft (Left Hand)	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Cooling Fan (Reversible Type)(#22537-27231)

60***20

Fan,Reversible

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Cooling Fan (Reversible Type)(#25749-29347)

Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Cooling Fan (Reversible Type)(#29348-)

60***20

Fan,Reversible

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Cooling Fan(#22537-25967)

60***20

Fan,(High Speed)

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Corrosion Resistor

01***25	Bolt,(For Canvas Canopy?Head Guard)	3
01***08	Nut,(For Canvas Canopy?Head Guard)	1
01***32	Washer,(With Auto Emergency Steering)	2
02***25	Bolt,(Cold Weather Spec.)	4

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Crank Pulley

01***85	Bolt	6
01***45	Washer,(For Travel Motor) (Not Show)	6
04***24	Pin,Dowel (For No.3 Housing)	1
62***30	Pulley? Hardening	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Crankshaft

61***30	Key Parallel	1
62***00	Bearing Assembly	1
62***10	Main Bearing Assembly	7
62***50	Thrust Bearing Assembly	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Cylinder Block (1/2) (Cold Terrain Spec.)(#22537-25748)

01***45	Washer,(Without R.O.P.S.)	14
04***14	Pin, Dowel	2
04***20	Pin,Dowel (Welded)	12
04***24	Pin,Dowel (For No.3 Housing)	2

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Cylinder Block (1/2)(#22537-25748)

01***45	Washer,(Without R.O.P.S.)	14
04***14	Pin, Dowel	2
04***20	Pin,Dowel (Welded)	12
04***24	Pin,Dowel (For No.3 Housing)	2

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Cylinder Block (1/2)(#25749-26659)

01***45	Washer,(Without R.O.P.S.)	14
04***14	Pin, Dowel	2
04***20	Pin,Dowel (Welded)	12
04***24	Pin,Dowel (For No.3 Housing)	2

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Cylinder Block (1/2)(#26660-)

01***45	Washer,(Without R.O.P.S.)	14
04***14	Pin, Dowel	2
04***20	Pin,Dowel (Welded)	12
04***24	Pin,Dowel (For No.3 Housing)	2

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Cylinder Block (2/2) (Cold Terrain Spec.)(#22537-25748)

01***25	Bolt,(For Canvas Canopy?Head Guard)	6
01***20	Bolt,(Without Rops Guard? Canopy)	1
01***25	Bolt,(Without Rops Guard? Canopy)	2
01***25	Screw	6

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Cylinder Block (2/2)(#22537-25748)

01***25	Bolt,(For Canvas Canopy?Head Guard)	6
01***20	Bolt,(Without Rops Guard? Canopy)	1
01***25	Bolt,(Without Rops Guard? Canopy)	2
01***25	Screw	6

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Cylinder Block (2/2)(#25749-26659)

01***25	Bolt,(Without Rops Guard? Canopy)	2
01***25	Screw	6
01***16	Washer,(With Water Separator)	6
02***04	Plug, Pipe	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Cylinder Block (2/2)(#26660-)

01***25	Bolt,(Without Rops Guard? Canopy)	2
01***25	Screw	6
01***16	Washer,(With Water Separator)	6
02***04	Plug, Pipe	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Cylinder Block Gasket Kit

01***12	Washer,(F2320-63a2 -13 )	2
07***14	O-Ring,(F4350-63a1a-2 )	1
07***60	O-Ring,(For Pc750?800?1800) (A2610)	1
07***50	O-Ring,Front Cover Plate	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Cylinder Block Related Parts (Cold Terrain Spec.)(#26660-)

01***25	Bolt,(For Canvas Canopy?Head Guard)	6
01***20	Bolt,(Without Rops Guard? Canopy)	1
07***12	Gasket,(Without Air Compressor Type) (K2)	1
07***07	Plug,Housing No.2?3?4?5?6	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Cylinder Block Related Parts(#26660-)

01***25	Bolt,(For Canvas Canopy?Head Guard)	6
01***20	Bolt,(Without Rops Guard? Canopy)	1
07***12	Gasket,(Without Air Compressor Type) (K2)	1
07***07	Plug,Housing No.2?3?4?5?6	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Cylinder Head

01***20	Bolt (M10-1.75x120)	6
04***20	Pin,Dowel (Welded)	2
07***25	O-Ring,Lubrication Valve	1
07***25	O-Ring,(For Pc1800e-6)(See Fig.A3110)	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Cylinder Head Gasket Kit

02***75	O-Ring,(For Japan) (K1)	4
02***81	O-Ring,Air Connector	2
07***25	O-Ring,Corrosion Resistor	4
07***21	O-Ring,Oil Cooler Pipe	12

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Damper

01***30	Bolt,(Not Used When Towing Winch)	6
01***32	Washer,(Not Used With Emergency Str.)	6
62***00	Damper Ass'Y	1
62***00	Damper Ass'Y	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Ejector Piping(#22537-26672)

01***30	Bolt,(With Body Positioner)	5
01***08	Nut,(For Canvas Canopy?Head Guard)	1
01***32	Washer,(With Auto Emergency Steering)	6
07***49	Clamp, Hose	4

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Ejector Piping(#26673-)

01***30	Bolt,(With Body Positioner)	4
01***08	Nut,(For Canvas Canopy?Head Guard)	1
01***32	Washer,(With Auto Emergency Steering)	4
07***49	Clamp, Hose	4

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Engine Mounting

62***10

Support,Front

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Exhaust Manifold

01***55	Screw	2
01***00	Screw	22
07***08	Plug,(For W/O. Corrosion Resistor)	1
61***20	Spacer,(For Shipping)	22

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Flywheel

61***51	Gear, Ring	1
62***50	Bolt	6
62***00	Flywheel Ass'Y	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Flywheel Housing(#25887-)

01***45	Bolt,(For Slag Handling)	8
01***60	Bolt, Hanger Bearing Mounting	2
01***45	Capscrew - M16	8
01***60	Capscrew	2

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Front Cover And Breather Related Parts(#26075-)

01***16	Bolt - Box Mounting	2
01***30	Bolt - M8 X 30lg	2
01***20	Bolt,(For Mono Lever Steering)	2
01***25	Bolt,(For Canvas Canopy?Head Guard)	5

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Front Cover(#22537-25748)

01***16	Bolt - Box Mounting	2
01***20	Bolt,(For Mono Lever Steering)	2
01***25	Bolt,(For Canvas Canopy?Head Guard)	5
01***30	Bolt,(With Body Positioner)	2

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Front Cover(#25749-)

Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Front Power Take Off

01***20	Bolt, Wiring Harness Mounting Bracket	5
01***30	Bolt,(With Body Positioner)	3
01***25	Bolt,(Without Rops Guard? Canopy)	1
01***15	Bolt, Fan Mounting	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Front Power Take Off (Without Front Power Take Off)

01***20	Bolt,(For Mono Lever Steering)	3
01***25	Bolt,(Without Rops Guard? Canopy)	1
01***15	Bolt, Fan Mounting	1
01***35	Capscrew	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Fuel Filter

01***40	Screw, Hex Socket	1
01***30	Bolt,(With Body Positioner)	4
01***35	Bolt,(F4320-52a0 -5 )	2
01***15	Bolt, Fan Mounting	2

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Fuel Injection Pump (Coupling) (Ec Dynamic Noise Supprssion Spec.) (Inner Parts)(#26244-)

DK***00	Coupling	1
DK***00	Bolt	6
DK***00	Bolt	2
DK***00	Bolt	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Fuel Injection Pump (Coupling) (For Regulation Of Epa) (Inner Parts)(#25887-)

DK***00	Coupling	1
DK***00	Bolt	6
DK***00	Bolt	2
DK***00	Bolt	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Fuel Injection Pump (Feed Pump) (Ec Dynamic Noise Supprssion Spec.) (Inner Parts)(#26244-)

DK***20	Bolt, Joint	1
DK***20	Housing	1
DK***00	Valve,Check	4
DK***30	Eye,Joint	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Fuel Injection Pump (Feed Pump) (For Regulation Of Epa) (Inner Parts)(#25887-)

DK***20	Bolt, Joint	1
DK***20	Housing	1
DK***00	Valve,Check	4
DK***30	Eye,Joint	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Fuel Injection Pump (Governor) (1/2) (Ec Dynamic Noise Supprssion Spec.) (Inner Parts)(#26244-)

DK***00	Gasket	1
DK***20	Flyweight Ass'Y	1
DK***00	Shim? 2.00mm,(High Altitude Spec.)	0
DK***10	Key? 13mm,Woodruff	0

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Fuel Injection Pump (Governor) (1/2) (For Regulation Of Epa) (Inner Parts)(#25887-)

DK***00	Gasket	1
DK***20	Flyweight Ass'Y	1
DK***00	Shim? 2.00mm,(High Altitude Spec.)	0
DK***10	Key? 13mm,Woodruff	0

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Fuel Injection Pump (Governor) (2/2) (Ec Dynamic Noise Supprssion Spec.) (Inner Parts)(#26244-)

DK***80	Shim? 0.5mm	0
DK***00	Washer,Spring	1
DK***80	Bolt,Eye	1
DK***00	Screw	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Fuel Injection Pump (Governor) (2/2) (For Regulatinof Epa) (Inner Parts)(#25887-)

DK***80	Shim? 0.5mm	0
DK***00	Washer,Spring	1
DK***80	Bolt,Eye	1
DK***00	Screw	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Fuel Injection Pump (Pump) (1/2) (Ec Dynamic Noise Supprssion Spec.) (Inner Parts)(#26244-)

62***70	Injection Pump Ass'Y	1
DK***30	Bearing,Roller	2
DK***90	Pump Ass'Y	1
DK***00	Bearing, Center	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Fuel Injection Pump (Pump) (1/2) (For Regulation Ofepa) (Inner Parts)(#25887-)

62***40	Injection Pump Ass'Y	1
DK***30	Bearing,Roller	2
DK***90	Pump Ass'Y	1
DK***00	Bearing, Center	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Fuel Injection Pump (Pump) (2/2) (Ec Dynamic Noise Supprssion Spec.) (Inner Parts)(#26244-)

DK***20	Plunger Ass'Y	1
DK***20	Plunger Block A	6
DK***00	Shim? 0.875mm	0
DK***00	Shim? 0.500mm	0

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Fuel Injection Pump (Pump) (2/2) (For Regulation Ofepa) (Inner Parts)(#25887-)

DK***20	Plunger Ass'Y	1
DK***20	Plunger Block A	6
DK***00	Shim? 0.875mm	0
DK***00	Shim? 0.500mm	0

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Fuel Injection Pump Drive(#22653-)

01***16	Bolt - Seat And Tether Belt Mounting	3
01***19	Nut	1
01***16	Washer,(For Shipping)	3
01***60	Washer,(Without Rops Guard? Canopy)	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Fuel Injection Pump Lubricator

07***12	Gasket,(Without Air Compressor Type) (K2)	2
07***12	Gasket,(Without Air Compressor Type) (K1)	2
07***10	Screw, Banjo Connector (M10-1.25x20)	1
07***14	Screw, Banjo Connector (M10)	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Fuel Injection Pump Mounting (Ec Dynamic Noise Supprssion Spec.)(#26244-)

01***90	Bolt,(For No?1 And No?3 Housing)	4
01***16	Washer,Radio Controlled Slag Handling	4
07***10	Connector, Grease Fitting	1
62***10	Tube	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Fuel Injection Pump Mounting (For Regulation Of Epa)(#25887-)

01***90	Bolt,(For No?1 And No?3 Housing)	4
01***16	Washer,Radio Controlled Slag Handling	4
07***10	Connector, Grease Fitting	1
62***10	Tube	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Fuel Injection Pump Piping

01***25	Capscrew	4
01***30	Screw	4
01***35	Bolt	4
01***20	Bolt, Wiring Harness Mounting Bracket	4

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Fuel Injection Pump Safety Guard(#25887-)

01***10	Bolt,(With Joy Stick Steering)	4
07***10	Connector, At Case	1
62***71	Cover,Safety	1
62***90	Spacer,Safety	4

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Fuel Return(#25887-)

01***20	Capscrew	1
01***16	Washer,Radio Controlled Slag Handling	1
04***10	Clip,(For Mono Lever Steering)	1
07***12	Gasket,Mechanical Pump Piping	3

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Head Cover Mounting(#26084-)

01***55

Screw

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Head Cover(#22537-26083)

01***55	Screw	18
62***11	Cover,Rocker Arm Housing	6
62***20	Gasket, Rocker Lever Housing	6

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Head Cover(#26084-)

62***11	Cover,Rocker Arm Housing	6
62***20	Gasket, Rocker Lever Housing	6

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Heat Shield(#22537-29685)

01***20	Bolt,(For Mono Lever Steering)	7
01***25	Bolt,(For Canvas Canopy?Head Guard)	2
01***30	Bolt,(With Body Positioner)	1
01***90	Capscrew	3

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Heat Shield(#25748-29874)

01***20	Bolt,(For Mono Lever Steering)	7
01***25	Bolt,(For Canvas Canopy?Head Guard)	2
01***30	Bolt,(With Body Positioner)	1
01***90	Capscrew	3

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Heat Shield(#29686-)

01***20	Bolt,(For Mono Lever Steering)	7
01***25	Bolt,(For Canvas Canopy?Head Guard)	2
01***90	Capscrew	3
01***30	Bolt,(Not Used When Towing Winch)	2

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Heater Switch Wiring(#22537-28601)

01***12	Bolt,(See Fig.0501)	2
01***16	Washer,(For 35a Alternator)	2
04***08	Clip	1
08***10	Clip	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Heater Switch Wiring(#28602-)

01***12	Bolt,(With Speedometer)	2
01***16	Bolt - Starting Motor Ground Cable	2
01***60	Bolt - Upper Cooler Inlet Tubemounting	1
01***05	Screw	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Idler Gear(#22537-26525)

01***30	Bolt - M8 X 30lg	6
61***60	Pin, Dowel	1
61***43	Bolt	1
62***14	Shaft	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Idler Gear(#26526-)

01***30	Bolt - M8 X 30lg	6
61***60	Pin, Dowel	1
61***22	Bolt	1
62***22	Plate, Thrust	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Injection Nozzle(#25748-)

01***20	Capscrew	6
07***21	O-Ring,Oil Cooler Pipe	6
07***21	Seal, O-Ring	6
07***12	Gasket,Mechanical Pump Piping	10

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Muffler(#22537-26672)

01***16	Bolt, Battery To Frame Ground Wire Attaching	2
01***20	Bolt,(For Mono Lever Steering)	2
01***95	Capscrew	1
01***45	Capscrew	5

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Muffler(#26673-)

Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Name Plate (For Regulation Of Epa)(#25887-27978)

04***50

Screw

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Name Plate And Caution Plate (For Eu Exhaust Gas Regulation)(#26616-27978)

04***50	Screw	4
61***10	Plate? Name,(Limited Supply)	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Name Plate And Caution Plate (For Eu Exhaust Gas Regulation)(#27979-)

04***50	Screw	4
61***10	Plate? Name,(Limited Supply)	1
61***11	Plate,(Limited Supply)	1
61***20	Plate	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Name Plate And Caution Plate (For Regulation Of Epa)(#28361-)

04***50

Screw

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Name Plate And Caution Plate (For Regulationof Ec) (For Eu Exhau St Gas Regulation)(#26497-26596)

04***50	Screw	4
61***10	Plate? Name,(Limited Supply)	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Name Plate And Caution Plate(#25887-)

04***50	Screw	4
09***40	Plate? Name,(Limited Supply) (English)	1
60***00	Plate,(Limited Supply)	1
60***40	Plate? Name,(Limited Supply)	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Nozzle Holder (Inner Parts)(#25748-)

62***31	Connector	1
62***00	Nozzle Holder Ass'Y	6
62***20	Nozzle	1
62***12	Holder Ass'Y,(See Fig.A4210-B7a4)	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Oil Adapter

01***16	Bolt,(For Slag Handling)	3
01***30	Bolt,(With Body Positioner)	2
01***60	Bolt,(F4320-52a0 -5- )	5
01***50	Bolt,(See Fig.A4010-C3w6)	4

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Oil Cooler(#22653-)

01***20	Bolt, Wiring Harness Mounting Bracket	2
01***30	Bolt,(With Body Positioner)	13
01***60	Bolt,(F4320-52a0 -5- )	2
01***90	Capscrew	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Oil Filter

01***25	Bolt,(For Canvas Canopy?Head Guard)	1
01***30	Bolt,(With Body Positioner)	8
01***35	Bolt,(F4320-52a0 -5 )	4
01***40	Bolt (Op)	2

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Oil Level Gauge

01***25	Bolt,(For Canvas Canopy?Head Guard)	1
01***08	Nut,(For Canvas Canopy?Head Guard)	1
01***32	Washer,(With Auto Emergency Steering)	2
61***20	Collar	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Oil Level Gauge (Cold Terrain Spec.) (Electrical Type Coolant Heater Spec.)

01***25	Bolt,(For Canvas Canopy?Head Guard)	1
01***08	Nut,(For Canvas Canopy?Head Guard)	1
01***32	Washer,(With Auto Emergency Steering)	2
61***20	Collar	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Oil Pan And Suction Tube

01***25	Bolt,(For Canvas Canopy?Head Guard)	42
01***30	Bolt,(With Body Positioner)	1
01***08	Nut, Regular Hexagon (M10-1.50)	1
01***16	Washer,Radio Controlled Slag Handling	40

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Oil Pan And Suction Tube (Cold Terrain Spec.) (Electrical Coolant Heater Spec.)

01***25	Bolt,(For Canvas Canopy?Head Guard)	42
01***30	Bolt,(With Body Positioner)	1
01***50	Bolt,(Spark Arrester Spec.)	2
01***08	Nut, Regular Hexagon (M10-1.50)	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-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
01***25	Washer,Spring?(Sandy And Dusty Spec.)	4

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Piston

02***13	Pin, Dowel	2
04***20	Ring, Retaining	12
62***10	Bolt	2
62***40	Bearing Assembly	6

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Rocker Arm And Housing(#24649-26074)

01***80	Bolt (M12-2.00x80)	6
01***80	Bolt (M10-1.50x80)	17
01***20	Bolt (M12-1.75x120)	12
01***08	Nut,R.H. Thread	2

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Rocker Arm And Housing(#26075-)

01***80	Bolt (M12-2.00x80)	6
01***80	Bolt (M10-1.50x80)	17
01***20	Bolt (M12-1.75x120)	12
01***08	Nut,R.H. Thread	2

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Service Parts (Air Cleaner Caution Plate And Exhausted Gas Control Data Palte)(#25887-28115)

09***63	Plate? Instruction,Air Cleaner (Double Element)	1
09***63	Plate? Instruction,(For Persian)	1
09***63	Plate? Instruction,Air Cleaner (Single Element)	1
09***63	Plate? Instruction,Air Cleaner Element Mainte	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Service Parts (Air Cleaner Caution Plate And Exhausted Gas Control Data Palte)(#28116-)

09***63	Plate? Instruction,Air Cleaner (Double Element)	1
09***63	Plate? Instruction,(For Persian)	1
09***63	Plate? Instruction,Air Cleaner (Single Element)	1
09***63	Plate? Instruction,Air Cleaner Element Mainte	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Service Parts (Exhaust Pipe And Rain Cap)(#25887-28115)

61***71	Cap,Rain	1
62***20	Pipe,Exhaust	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Service Parts (Exhaust Pipe And Rain Cap)(#28116-)

61***71	Cap,Rain	1
62***20	Pipe,Exhaust	1
62***21	Pipe,Exhaust	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Service Parts (Fan Belt)(#25887-28115)

04***74

V-Belt Set,(Except Japan)

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Service Parts (Fan Belt)(#28116-)

04***74

V-Belt Set,(Except Japan)

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Service Parts (Spare Parts)(#25887-28115)

04***74	V-Belt Set,(Except Japan)	1
60***31	Cartridge, Oil Filter	1
60***32	Cartridge,Fuel Filter	1
62***20	Gasket, Rocker Lever Housing	6

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Service Parts (Spare Parts)(#28116-)

04***74	V-Belt Set,(Except Japan)	1
60***31	Cartridge, Oil Filter	1
60***32	Cartridge,Fuel Filter	1
62***20	Gasket, Rocker Lever Housing	6

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Starting Motor (11kw) (Inner Parts)(#22537-26659)

60***10	Starting Motor Ass'Y,(11kw)	1
SD***X0	Bearing,Ball	1
SD***X0	Brush Holder Ass'Y	1
SD***X6	Brush,(For 1st Service Only)	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Starting Motor (11kw) (Inner Parts)(#26660-)

60***11	Starting Motor Ass'Y,(11kw)	1
KD***40	Spring,Spring	4
KD***57	Bearing, Ball, Front	1
KD***30	Armature Assembly	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Starting Motor Mounting (11kw)(#22537-26659)

01***40	Bolt,(With Center Guard)	3
08***19	Band,(Without Air Conditioner)	1
08***10	Connector, Clip	1
62***10	Gasket,(See Fig.A6210)	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Starting Motor Mounting (11kw)(#26660-)

01***40	Bolt,(With Center Guard)	3
08***19	Band,(Without Air Conditioner)	1
08***10	Connector, Clip	1
62***10	Gasket,(See Fig.A6210)	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Tamper Proof Kit (For Regulation Of Epa)(#22871-)

62***20

Kit, Tamper Proof

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Tension Pulley

01***25	Bolt,(For Canvas Canopy?Head Guard)	2
01***40	Bolt (Op)	2
01***30	Bolt,(Not Used When Towing Winch)	2
01***00	Bolt,For Weight Adjusting Bolt	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Thermostat And Piping(#25471-)

01***50	Bolt,(Spark Arrester Spec.)	2
01***70	Screw	1
01***85	Bolt,(For Reversible Fan)	1
01***65	Screw	4

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Turbocharger (Inner Parts)

01***16	Bolt	4
01***16	Bolt	8
01***16	Bolt	8
04***08	Pin, Dowel	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Turbocharger Mounting

61***90	Nut, Mounting	4
61***10	Screw	4
62***31	Gasket, Turbocharger	1
(6***0)	Turbocharger Ass'Y,(See Fig.A1530-B4f5z)	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Turbocharger Oil Piping

01***20	Bolt,(For Mono Lever Steering)	1
01***25	Bolt,(For Canvas Canopy?Head Guard)	2
01***35	Bolt,(F4320-52a0 -5 )	3
01***90	Bolt,(For No?1 And No?3 Housing)	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Water Pump Gasket Kit

02***37	O-Ring,(For Pc750?1800) (A5010)	2
07***55	O-Ring,Front Accessory Drive	2
07***70	O-Ring,(For Intake Air Cover)	1
07***15	O-Ring,(For Low Speed) (D40pf)	1

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Water Pump(#25471-)

01***20	Bolt,(For Mono Lever Steering)	1
01***80	Bolt,(With Corrosion Resistor)	1
01***95	Capscrew	3
01***25	Bolt	3

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Komatsu : Sa6d140e-2b-7(S/N 22537-Up) : Engine : Water Separator

01***20	Bolt,(For Mono Lever Steering)	1
01***25	Bolt,(For Canvas Canopy?Head Guard)	3
01***65	Bolt	1
01***08	Nut,(For Canvas Canopy?Head Guard)	1

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SA6D140E-2B-7(S/N 22537-UP) serial number reference

The PIN plate is typically located on the right-hand side of the cab on the lower frame, near the front idler or beneath the operator's window. The 3-character prefix is the first three letters of the 17-character ISO PIN stamped on this plate.

Prefix	Identifies	Notes
SA6D140E-2B-7	Engine model	SA6D140E-2B-7 engine fitted to machines with serial number 22537-UP. Identified in parts catalogs and service manuals for this specific serial range. No other 3-character PIN prefixes are documented for this exact engine/serial combination in the provided sources.

Frequently asked questions

What is the engine type?

The Komatsu SA6D140E-2B-7 is a 15.24-liter (930 cu in) inline-six, water-cooled, turbocharged, and aftercooled diesel engine from the 6D140-2 series. It features a mechanical jerk-pump fuel system and no factory electronic emissions aftertreatment.

What is the operating weight of the host machine?

The host machine, the Komatsu D275A-5 crawler dozer, carries an operating weight of approximately 49,850 kg (109,900 lb), varying by blade and undercarriage configuration.

What engine replaced it?

Later-serial D275A-5 chassis moved to the newer SDA6D140E-3 generation of the same base engine. The line's successor, the D275A-5R, utilizes the larger SAA6D140E-5 engine.

What SA6D140E-2B-7(S/N 22537-UP) owners discuss

What are the typical powertrain and hydraulic behaviors associated with the Komatsu SA6D140E-2B-7 engine series?

The SA6D140E-2B-7 is a 6-cylinder, water-cooled, turbocharged, and aftercooled diesel engine. It typically delivers approximately 368 kW (493 hp) at 1900 rpm with a maximum torque of 2237 N*m (1650 lb-ft) at 1200 rpm. The engine displacement is 15.24 liters (930.1 cu in). It is commonly installed in heavy excavators (such as the PC750-6/7, PC800-6/7, PC1800-6) and large wheel loaders (WA500-3). Hydraulic performance is directly tied to engine RPM; if engine speed drops under load while hydraulic movements remain weak, the hydraulic system is the primary suspect. If engine speed drops heavily when hydraulics are engaged, the engine may be unable to produce expected power or the hydraulic system is placing excessive load on the engine. The engine uses a Bosch-style fuel system with injectors operating at approximately 3,200 PSI, providing high reliability and long service life compared to older PT fuel systems. Variations in hydraulic flow and pressure exist depending on the specific machine configuration and serial range. Verify exact hydraulic specifications with your dealer for the specific machine model (e.g., PC750 vs. WA500). Have your dealer verify the exact hydraulic pump flow rates and engine torque curves for your specific machine configuration before performance troubleshooting. (Note: The SA6D140E-2B-7 is distinct from the later SA6D140E-3 series which uses a common rail system and has different error codes like E-79/E-7A. Do not mix diagnostic data between the two series.)

What undercarriage or wear patterns are typical for machines powered by the SA6D140E-2B-7 engine?

Machines equipped with the SA6D140E-2B-7 engine (such as the PC750, PC800, and PC1800 excavators) are heavy-class units. Typical undercarriage wear patterns include accelerated track chain elongation and roller wear due to high operating weights (often exceeding 70,000 kg / 154,000 lb for the PC1800-6). Track tension should be checked regularly; tracks that repeatedly loosen often indicate issues with the tensioner mechanism or excessive undercarriage component wear. Mud or debris packed into the undercarriage can cause uneven track speed and pulling. Final drive noise is a common indicator of oil level issues or internal contamination. The high torque output of the 15.24-liter engine places significant stress on final drives and travel motors. Inspect track-chain condition and roller condition frequently. If the machine pulls to one side, test the symptom in both forward and reverse to distinguish between hydraulic imbalance and mechanical track resistance. Have your dealer verify the correct track tension specification and final drive oil levels for your specific machine model. (Note: Undercarriage wear rates vary significantly by configuration, attachment, and jobsite conditions. Verify final drive oil capacity and specification with your dealer.)

What are the known engine quirks and maintenance requirements for the SA6D140E-2B-7 series?

The SA6D140E-2B-7 engine requires Komatsu EO-10 or equivalent diesel engine oil. Coolant capacity varies by machine application; for example, the PC750-6/7 uses approximately 594 liters (157 gal) while the PC1800-6 uses approximately 594 liters (157 gal) for the cooling system (verify exact capacity for your specific machine). The thermostat should fully open at a lift of at least 8 mm (0.31 in) when soaked in an oil bath at 100°C (212°F) for 4 to 5 minutes. The cooling package is sensitive to debris; material packed between the radiator, hydraulic oil cooler, and charge-air cooler can cause overheating during heavy work. If temperature rises during heavy work but falls during idle, cooling capacity may be marginal. Engine oil pan capacity varies by application: 30 liters (7.9 gal) for D155AX-5/WA500-3, 36 liters (9.5 gal) for PC750-6/7/PC800-6/7/PC1800-6, and 28 liters (7.4 gal) for HD325-6/HM350-1/HM400-1. Always verify the exact oil pan capacity for your specific machine model. Have your dealer verify the exact coolant and oil capacities for your specific machine model before service. (Note: Oil and coolant capacities vary by configuration/series. Verify with your dealer.)

What are the common electrical or sensor issues associated with this engine series?

Common electrical issues include battery voltage collapse under load, which can mimic starter or alternator failure. Check battery state of charge, terminals, and engine/chassis grounds before replacing starters. Fault codes E10 (engine controller power failure) and E11 (engine control failure) indicate serious electrical or management system issues. E15 indicates engine sensor malfunction (temperature, fuel, etc.). Multiple fault codes often point to battery, grounds, or connector issues. The engine controller is sensitive to power supply stability. If the machine suddenly derates, check the exact warning and codes. The SA6D140E-2B-7 uses a Bosch-style fuel system, not a common rail system, so it does not exhibit common rail high-pressure errors (like E-79/E-7A found in the E-3 series). Verify sensor readings and connector integrity before replacing sensors. Have your dealer verify the correct sensor specifications and connector pinouts for your specific machine model. (Note: Electrical system configurations may vary by region and emissions package. Verify with your dealer.)

What should be checked when buying a used machine with the SA6D140E-2B-7 engine?

When buying a used machine with the SA6D140E-2B-7 engine, check the following: 1. Engine oil and coolant levels and condition. 2. Hydraulic oil level and condition. 3. Track tension and undercarriage wear. 4. Final drive oil levels and contamination. 5. Battery state of charge and terminal condition. 6. Air filter condition and fuel filter water separator. 7. Cooling package cleanliness. 8. Engine fault codes and history. 9. Hydraulic pump flow and pressure. 10. Swing brake operation. 11. Travel motor operation. 12. Turbocharger condition. 13. Injector condition. 14. Engine mount condition. 15. Fluid leaks. Verify the exact serial number and engine model to ensure correct parts and specifications. Have your dealer verify the exact engine and machine specifications before purchase. (Note: Machine condition varies significantly by usage history. Verify with your dealer.)

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

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