Komatsuengine(no series)
Komatsu SA12V140-1S-WD(S/N 11640-UP)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu SA12V140-1S-WD (S/N 11640-UP) is a heavy-duty, water-cooled, turbocharged V12 diesel engine designed for high-output applications including wheel loaders, rigid-frame mining haulers, and stationary generators. It features a 140 mm bore and 165 mm stroke, displacing 30.5 liters. This engine powers the Komatsu 330M mining hauler and WA800-series wheel loaders, bridging the mechanical-drive era to modern Tier 3/4 compliance. It is part of the SA12V140-1 series, succeeding earlier 12V140 configurations and serving as a robust power source for machines in the 300,000+ lb GVW class.
Across its production run, the SA12V140-1S-WD saw incremental factory running changes rather than full model redesigns, reflected in the progression of serial ranges and shop manual codes. The machine remains highly relevant in the used-truck and aftermarket parts market due to its mechanical simplicity and broad base of shared engine, powertrain, and axle components. Buyers value its predictable rebuild costs and parts interchangeability over the complex electronic diagnostics found in later drive-system trucks, ensuring a steady demand for overhaul kits and replacement components.
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 SA12V140-1S-WD(S/N 11640-UP) specifications
Engine
| Model | SA12V140-1 |
| Configuration | 12-cylinder, water-cooled, turbocharged, aftercooled V12 diesel |
| Bore x Stroke | 140.0 mm x 165.0 mm |
| Displacement | 30.5 L (30,480 cc) |
| Net Power | 574–603 kW (770–808 HP) @ 2,000 rpm; varies by application mode (High power/Economy) and governor type |
| Net Torque | 3,350–4,170 N·m (2,472–3,077 lbf·ft) @ 1,250–1,400 rpm; varies by application |
| Governor Type | Bosch PE-P (PS7S) type or Zexel electronic control type; varies by configuration |
| Emissions Tier | Not documented for this exact serial range in source text |
Weights
| Dry Weight | 3,100–3,300 kg (6,834–7,275 lb); varies by configuration |
Dimensions
| Overall Length | 1,715–2,000 mm (5.63–6.56 ft); varies by configuration |
| Overall Width | 1,450–1,515 mm (4.76–4.97 ft); varies by configuration |
| Overall Height (excluding exhaust) | 1,475–1,560 mm (4.84–5.12 ft); varies by configuration |
| Overall Height (including exhaust) | 1,592 mm (5.22 ft) |
Performance
| Flywheel Horsepower (Net) | 574 kW (770 HP) @ 2,000 rpm; 588 kW (789 HP) @ 2,000 rpm; 603 kW (808 HP) @ 2,000 rpm |
| Minimum Fuel Consumption | 205–215 g/kW·h (153–160 g/HP·h) at rated flywheel horsepower |
| Low Idling Speed | 700–900 rpm |
Service capacities (summary)
| Lubricating Oil Amount (Refill) | 80–103 L (21.2–27.2 gal); varies by configuration |
| Cooling System Capacity | Not documented for this exact serial range in source text |
| Fuel Tank Capacity | Not documented for this exact serial range in source text |
| Hydraulic System Capacity | Not documented for this exact serial range in source text |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
Komatsu SA12V140-1S-WD(S/N 11640-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 SA12V140-1S-WD(S/N 11640-UP) beyond the schedule
Predictive Maintenance & Fluid Analysis
Utilize KOWA fluid analysis at every major service interval to monitor wear metals (iron, copper, lead, aluminum) and contaminants (silicon, sodium) in the engine oil. Track hydraulic fluid particle count and viscosity changes to detect pump or valve wear early. Test coolant pH, SCA concentration, and glycol content to prevent corrosion and cavitation in the 30.5-liter displacement block. KOMTRAX telematics integration provides remote monitoring of load frequency and fault codes, allowing for proactive scheduling before component failure occurs.
Corrective & Common Repairs
Address frequent issues in the SA12V140-1S-WD by inspecting the Bosch PE-P or Zexel electronic fuel injection pump drive for wear. Check turbocharger shaft play and housing integrity under high-load mining conditions. Replace worn piston rings and cylinder liners if compression drops or oil consumption rises. Inspect the torque converter and powershift transmission for clutch disk abuse or slipping, common in rigid hauler applications. Verify electrical governor or mechanical governor settings depending on the specific serial build to ensure stable idle and rated RPM.
Overhaul & Rebuild Points
Perform inframe overhauls when wear limits are reached, utilizing standard SA12V140 piston, pin, and ring kits. Replace main bearings and crankshaft if journal wear exceeds tolerances. Inspect the cylinder block for cracks around the liner seats. Rebuild the hydraulic pump and final drive axles using OEM-specification seals and gears. Ensure all gaskets and seals meet Komatsu genuine lubricant compatibility standards to maintain seal integrity under high-pressure operating conditions.
Seasonal & Environment Servicing
In extreme cold, verify coolant freeze protection and use appropriate viscosity engine oil to ensure cold starts. In dusty mining environments, increase air filter cleaning frequency and inspect the aftercooler core for debris blockage. Monitor DEF levels and KDPF regeneration cycles for Tier 4 compliant builds to prevent soot accumulation. In high-temperature operations, ensure the radiator and oil cooler fins are free of compacted dust to maintain optimal thermal management for the 12-cylinder powerplant.
SA12V140-1S-WD(S/N 11640-UP) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 600-311-7132 | Cartridge,Fuel Filter | Fuel system service | Check fitment → |
| 6210-71-6202 | Fuel Filter Ass'Y | Fuel system service | Check fitment → |
| 07000-02080 | O-Ring,Hydraulic Oil Filter | Hydraulic service | Check fitment → |
| 6215-51-5690 | Grommet,Oil Filter | Lubrication service | Check fitment → |
| 600-211-1101 | Oil Filter Sub A | Lubrication service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
SA12V140-1S-WD(S/N 11640-UP) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| CA115 | Engine crankshaft speed sensor failure | Broken sensor, wiring issue, or connector corrosion | Replace the speed sensor and verify the voltage at the pin connector |
| CA111 | Internal engine controller fault | ECM internal abnormality | Replace or reprogram the ECM |
| CA234 | Engine overspeed | Throttle calibration error, engine load cycle issue, or operator misuse | Verify throttle calibration and engine load cycle |
| CA441 | Battery voltage too low | Alternator failure, battery failure, or voltage regulator issue | Replace the alternator or battery and check the voltage regulator |
| CA442 | Battery voltage too high | Alternator failure or voltage regulator issue | Replace the alternator or battery and check the voltage regulator |
| CA122 | Intake air pressure high voltage | Intake pressure sensor malfunction or actual overpressure condition | Verify the intake pressure sensor and wiring |
| CA123 | Intake air pressure low voltage | Sensor short or airflow restriction | Check for a sensor short or an airflow restriction |
| CA153 | Intake air temperature sensor error (High) | IAT sensor malfunction | Replace or test the IAT sensor |
| CA154 | Intake air temperature sensor error (Low) | IAT sensor malfunction | Replace or test the IAT sensor |
| 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 |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
SA12V140-1S-WD(S/N 11640-UP) attachments & work tools
Wheel Loader Attachments
The SA12V140-1S-WD engine powers the WA800-2 and WA900-1 wheel loader series. Factory configurations for these machines typically include standard bucket couplers and hydraulic quick-attach systems compatible with Komatsu's heavy-duty loader families. Bucket capacities for this class generally range from 5 to 10 cubic yards depending on the specific WA800 or WA900 variant and material density.
Rigid Hauler Configurations
This engine is installed in the HD785-3 and HD785-5 rigid dump trucks. These machines utilize a fixed, non-detachable body configuration designed for high-volume mining and quarry operations. The engine bay and mounting points are specific to the HD785 chassis, with no standard aftermarket work-tool interfaces for the truck body itself.
Generator Set Configurations
The SA12V140-1S-WD is used in the EG750B-1L and DCA800SSK generator sets. These are stationary power units where the 'work tool' is the alternator and control panel assembly. Factory options include high-altitude kits and varying exhaust configurations to meet site-specific emissions and cooling requirements.
Hydraulic System Notes
For wheel loader applications, the engine drives the main hydraulic pump via a gear train or direct coupling. Hydraulic fluid specifications typically require Komatsu HO or equivalent high-viscosity index oils to maintain performance under high load. The engine's cooling system is integrated with the hydraulic oil cooler in loader configurations.
All SA12V140-1S-WD(S/N 11640-UP) assemblies by section
Every catalogued assembly group for the Komatsu SA12V140-1S-WD(S/N 11640-UP). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Engine
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : After Cooler Water Piping
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 9 |
| 01***40 | Bolt (Op) | 7 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : After Cooler Water Piping(#11972-)
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 9 |
| 01***40 | Bolt (Op) | 7 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Air Cleaner(#11640-12363)
| 60***41 | Pre-Cleaner Assembly | 2 |
| 60***70 | Nut, Wing | 1 |
| 60***00 | Element Assembly, Outer | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Air Cleaner(#12364-)
| 60***41 | Pre-Cleaner Assembly | 2 |
| 60***70 | Nut, Wing | 1 |
| 60***01 | Element Ass'Y,Outer | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Air Intake Manifold And After Cooler (1/2) (L.H. Bank)
| 01***00 | Bolt,(For Front Brake Release) | 7 |
| 01***10 | Bolt,(With Joy Stick Steering) | 5 |
| 01***60 | Bolt | 12 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Air Intake Manifold And After Cooler (1/2) (L.H. Bank)(#11972-)
| 01***00 | Bolt,(For Front Brake Release) | 7 |
| 01***10 | Bolt,(With Joy Stick Steering) | 5 |
| 01***60 | Bolt | 12 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Air Intake Manifold And After Cooler (2/2) (R.H. Bank)
| 01***00 | Bolt,(For Front Brake Release) | 8 |
| 01***10 | Bolt,(With Joy Stick Steering) | 4 |
| 01***60 | Bolt | 9 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Air Intake Manifold And After Cooler (2/2) (R.H. Bank)(#11972-)
| 01***00 | Bolt,(For Front Brake Release) | 6 |
| 01***10 | Bolt,(With Joy Stick Steering) | 4 |
| 01***20 | Capscrew | 2 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Air Vent(#11640-11882)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***10 | Bolt,(With Joy Stick Steering) | 1 |
| 01***30 | Capscrew (1) | 8 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Air Vent(#11883-12237)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***10 | Bolt,(With Joy Stick Steering) | 1 |
| 01***30 | Capscrew (1) | 8 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Air Vent(#12238-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***10 | Bolt,(With Joy Stick Steering) | 1 |
| 01***30 | Capscrew (1) | 8 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Alternator (75a) (Inner Parts)
| 60***30 | Alternator A. (75a) | 1 |
| SD***X0 | Coil Assembly | 1 |
| SD***X0 | Washer | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Alternator (90a) (Inner Parts)(#12106-)
| 60***30 | Alternator A. (90a) | 1 |
| KD***02 | Bolt | 4 |
| KD***02 | Washer,Spring | 5 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Alternator Drive (For 50a And 75a)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 6 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 2 |
| 01***90 | Bolt,For Weight Adjusting Bolt | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Alternator Drive (For 90a Alternator)(#11640-12105)
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Alternator Drive (For 90a)(#12106-)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 6 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 2 |
| 01***90 | Bolt,For Weight Adjusting Bolt | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Alternator Mounting (75a)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***30 | Bolt,(With Body Positioner) | 6 |
| 01***20 | Bolt,For Weight Adjusting Bolt | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Alternator Mounting (90a)(#11640-12105)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***30 | Bolt,(With Body Positioner) | 6 |
| 01***55 | Bolt - Mount Cage To Transmission Case | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Alternator Mounting (90a)(#12106-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***30 | Bolt,(With Body Positioner) | 6 |
| 01***55 | Bolt - Mount Cage To Transmission Case | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Alternator Related Parts(#13090-)
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Breather And Front Seal(#11949-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***30 | Bolt,(With Body Positioner) | 1 |
| 01***40 | Bolt (Op) | 4 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Breather(#11640-11948)
| 01***30 | Bolt,(With Body Positioner) | 1 |
| 01***40 | Bolt (Op) | 4 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 3 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Bypass Filter (Chassis Mount) (For Wa800?900-3 And Wd900-3)(#11640-12377)
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***95 | Capscrew | 3 |
| 01***25 | Capscrew | 3 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Bypass Filter (For Wa800?900-3 And Wd900-3)(#12378-)
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Bypass Filter Bracket (For Wa800?900-3 And Wd900-3)(#12378-)
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***95 | Capscrew | 3 |
| 01***25 | Capscrew | 3 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Bypass Oil Piping (For Wa800?900-3 And Wd900-3)(#11640-12377)
| 01***30 | Bolt,(With Body Positioner) | 1 |
| 01***85 | Bolt, Divider Valve Mounting | 2 |
| 07***23 | O-Ring,Plug | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Bypass Oil Piping (For Wd900-3)(#12378-)
| 01***30 | Bolt,(With Body Positioner) | 1 |
| 01***85 | Bolt, Divider Valve Mounting | 2 |
| 07***23 | O-Ring,Plug | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Camfollower And Tachometer Drive Shaft(#11949-)
| 01***85 | Bolt (M10-1.50x85) | 2 |
| 01***80 | Bolt (M12-2.00x80) | 12 |
| 01***80 | Bolt (M10-1.50x80) | 34 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Camfollower Cover
| 01***20 | Bolt,(For Japan Pc200) | 70 |
| 07***12 | Gasket,(Without Air Compressor Type) (K2) | 48 |
| 62***20 | Cover,Camfollower | 12 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Camfollower(#11949-)
| 04***12 | Ring, Retaining | 48 |
| 61***20 | Ball | 1 |
| 62***00 | Lever, Cam Follower | 24 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Camshaft And Camfollower(#11640-11948)
| 01***20 | Bolt (M12-1.75x20) | 4 |
| 04***25 | Key, Plain Woodruff | 1 |
| 04***12 | Ring, Retaining | 48 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Camshaft And Gear(#11949-)
| 01***20 | Bolt (M12-1.75x20) | 4 |
| 04***25 | Key, Plain Woodruff | 1 |
| 62***20 | Gear, Camshaft (Left Hand) | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Cooling Fan
| 01***60 | Bolt,For Weight Adjusting Bolt | 6 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 6 |
| 60***00 | Fan,Cooling | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Corrosion Resistor
| 01***35 | Bolt,(F4320-52a0 -5 ) | 2 |
| 07***06 | O-Ring,Corrosion Resistor | 1 |
| 07***14 | O-Ring,(F4350-63a1a-2 ) | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Crank Pulley
| 04***24 | Pin,Dowel (For No.3 Housing) | 1 |
| 61***21 | Bolt | 6 |
| 62***30 | Pulley? Hardening | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Crankshaft
| 04***28 | Key, Plain Woodruff | 1 |
| 62***01 | Main Metal Ass'Y | 1 |
| 62***11 | Main Metal Ass'Y,No.1?2?3?5?6?7 | 6 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Cylinder Block Cover(#11640-11948)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 26 |
| 62***10 | Cover, Water Header | 3 |
| 62***81 | Gasket, Water Header Cover | 3 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Cylinder Block Gasket Kit
| 07***12 | O-Ring, Between Valve And Pump | 1 |
| 07***15 | O-Ring,(Without Boom Kickout) | 2 |
| 07***21 | O-Ring,Water Piping | 2 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Cylinder Block Related Parts (Wa800-1?2 And Hd785-3 Electircal Governor Spec.)(#11949-)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 26 |
| 08***05 | Switch,Engine Oil Pressure | 1 |
| 62***10 | Cover, Water Header | 3 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Cylinder Block(#11640-11948)
| 01***20 | Bolt | 12 |
| 01***25 | Screw | 12 |
| 01***16 | Washer,(With Water Separator) | 12 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Cylinder Block(#11949-)
| 01***25 | Screw | 12 |
| 01***16 | Washer,(With Water Separator) | 12 |
| 01***60 | Washer,(Without Rops Guard? Canopy) | 14 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Cylinder Head Gasket Kit
| 02***75 | O-Ring,(See Fig.A1310) | 8 |
| 07***21 | O-Ring,Water Piping | 24 |
| 07***25 | O-Ring,Corrosion Resistor | 5 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Cylinder Head(#11640-11882)
| 01***16 | Bolt,(For Shipping) | 12 |
| 01***20 | Bolt (M10-1.75x120) | 12 |
| 04***20 | Pin,Dowel (Welded) | 2 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Cylinder Head(#11883-)
| 01***16 | Bolt,(For Shipping) | 12 |
| 01***20 | Bolt (M10-1.75x120) | 12 |
| 04***20 | Pin,Dowel (Welded) | 2 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Damper
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 12 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 12 |
| 04***24 | Pin,Dowel (For No.3 Housing) | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Electrical Wiring (For Electrical Governor) (For Ec Regulation)(#12000-)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***16 | Bolt, Mount Solenoid Valve | 8 |
| 01***16 | Bolt - Starting Motor Ground Cable | 4 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Electrical Wiring (For Electrical Governor) (Harness Heavy Duty Type)(#11640-11999)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***16 | Bolt, Mount Solenoid Valve | 8 |
| 01***16 | Bolt - Starting Motor Ground Cable | 20 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Engine Support And Bracket
| 01***55 | Bolt, Strut Mounting - To Radiator And Rear Frame | 12 |
| 01***55 | Capscrew | 12 |
| 01***60 | Flat Washer - M20 (Hardened) | 12 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Exhaust Manifold
| 01***95 | Bolt | 48 |
| 61***50 | Stud, Mounting | 4 |
| 62***81 | Gasket, Exhaust Manifold | 12 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fan Drive
| 01***35 | Bolt,(For Pedal Steering) | 2 |
| 01***35 | Bolt | 2 |
| 01***40 | Bolt,For Weight Adjusting Bolt | 14 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fan Pulley
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 6 |
| 62***90 | V-Belt Set | 1 |
| 62***60 | Pulley? Hardening | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Flywheel
| 01***80 | Bolt | 10 |
| 61***20 | Washer, Plain (M20) | 10 |
| 62***00 | Flywheel Ass'Y | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Flywheel Housing
| 01***30 | Screw | 3 |
| 01***65 | Bolt,L.H | 14 |
| 01***30 | Bolt, Tank Mounting | 3 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Flywheel Housing (For Electrical Governor)(#11755-)
| 01***30 | Screw | 3 |
| 01***65 | Bolt,L.H | 14 |
| 01***30 | Bolt, Tank Mounting | 3 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Front Cover(#11640-11948)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 1 |
| 01***75 | Bolt - Tube Mounting | 7 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Front Cover(#11949-)
| 01***75 | Bolt - Tube Mounting | 7 |
| 01***90 | Bolt,For Weight Adjusting Bolt | 3 |
| 01***30 | Bolt,For Weight Adjusting Bolt | 9 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Controller (For Wa800?900-3 And Wd900-3)(#13090-)
| 78***01 | Controller | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Controller (Forwarded Individually Parts) (For Wa800?900-3 And Wd900-3)(#11911-11999)
| 78***01 | Controller | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Controller (Forwarded Individually Parts) (For Wa800?900-3 And Wd900-3)(#12000-)
| 78***00 | Controller | 1 |
| 78***01 | Controller | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Filter And Piping (1/2) (L.H.)
| 01***35 | Bolt,(For Fix Position) | 2 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 4 |
| 01***15 | Bolt, Fan Mounting | 4 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Filter And Piping (2/2) (R.H.)
| 01***40 | Screw, Hex Socket | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***50 | Bolt,(Spark Arrester Spec.) | 2 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Filter And Piping(#11911-11921)
| 01***30 | Bolt - M8 X 30lg | 2 |
| 01***45 | Screw | 1 |
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Filter And Piping(#11922-)
| 01***30 | Bolt - M8 X 30lg | 2 |
| 01***45 | Screw | 1 |
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Nozzle
| 01***20 | Capscrew | 12 |
| 07***21 | O-Ring,Oil Cooler Pipe | 24 |
| 07***21 | Seal, O-Ring | 12 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump (Coupling) (For Electrical Governor) (Inner Parts)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 6 |
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 2 |
| 65***01 | Coupling Ass'Y | 2 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump (Coupling) (L.H.) (Inner Parts)
| DK***00 | Coupling | 1 |
| DK***00 | Bolt | 6 |
| DK***00 | Coupling,Cross | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump (Coupling) (R.H.) (Inner Parts)
| DK***00 | Coupling | 1 |
| DK***00 | Bolt | 6 |
| DK***00 | Coupling,Cross | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump (Feed Pump) (L.H.) (Inner Parts)
| DK***90 | Feed Pump Ass'Y | 1 |
| DK***20 | Bolt, Joint | 1 |
| DK***00 | Valve,Check | 4 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump (Feed Pump) (R.H.) (Inner Parts)
| DK***90 | Feed Pump Ass'Y | 1 |
| DK***20 | Bolt, Joint | 1 |
| DK***00 | Valve,Check | 4 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump (Governor) (L.H.) (1/2) (For Electrical Governor) (Inner Parts)
| 01***45 | Bolt | 4 |
| 01***80 | Bolt | 6 |
| 01***80 | Bolt | 6 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump (Governor) (L.H.) (1/2) (Inner Parts)
| DK***00 | Gasket | 1 |
| DK***00 | Gear | 1 |
| DK***00 | Shim? 2.00mm,(High Altitude Spec.) | 0 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump (Governor) (L.H.) (2/2) (For Electrical Governor) (Inner Parts)
| 01***30 | Bolt (Itl) | 1 |
| 01***80 | Bolt | 2 |
| 01***30 | Bolt | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump (Governor) (L.H.) (2/2) (Inner Parts)
| DK***80 | Shim? 0.5mm | 0 |
| DK***40 | Gasket,Air Compressor | 4 |
| DK***40 | Bolt | 4 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump (Governor) (R.H.) (1/2) (For Electrical Governor) (Inner Parts)
| 01***45 | Bolt | 4 |
| 01***80 | Bolt | 6 |
| 01***80 | Bolt | 6 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump (Governor) (R.H.) (2/2) (For Electrical Governor) (Inner Parts)
| 01***30 | Bolt (Itl) | 1 |
| 01***80 | Bolt | 2 |
| 01***30 | Bolt | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump (Pump) (L.H.) (1/2) (For Electrical Governor) (Inner Parts)
| 01***12 | Bolt - M8 - 1.25 X 12 | 2 |
| 01***35 | Bolt | 4 |
| 01***30 | Bolt (Itl) | 6 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump (Pump) (L.H.) (1/2) (Inner Parts)
| 62***50 | Injection Pump A.,L.H | 1 |
| DK***30 | Bearing,Roller | 1 |
| DK***00 | Bearing,Center | 2 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump (Pump) (L.H.) (2/2) (For Electrical Governor) (Inner Parts)
| 01***08 | Nut, Regular Hexagon (M10-1.50) | 12 |
| 01***32 | Washer,(With Auto Emergency Steering) | 12 |
| 65***01 | Valve Ass'Y | 6 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump (Pump) (L.H.) (2/2) (Inner Parts)
| DK***00 | Nut | 12 |
| DK***40 | Screw | 2 |
| DK***00 | Shim? 0.875mm | 0 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump (Pump) (R.H.) (1/2) (For Electrical Governor) (Inner Parts)
| 01***12 | Bolt (M8-1.25x12) | 2 |
| 01***12 | Bolt - M8 - 1.25 X 12 | 2 |
| 01***35 | Bolt | 4 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump (Pump) (R.H.) (1/2) (Inner Parts)
| 62***60 | Injection Pump Ass'Y,R.H. (See Fig.A4010-H7f3) | 1 |
| DK***30 | Bearing,Roller | 1 |
| DK***20 | Limiter | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump (Pump) (R.H.) (2/2) (For Electrical Governor) (Inner Parts)
| 01***08 | Nut, Regular Hexagon (M10-1.50) | 12 |
| 01***32 | Washer,(With Auto Emergency Steering) | 12 |
| 65***01 | Valve Ass'Y | 6 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump (Pump) (R.H.) (2/2) (Inner Parts)
| DK***00 | Nut | 12 |
| DK***40 | Screw | 2 |
| DK***00 | Shim? 0.875mm | 0 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump Bracket (For Electrical Governor)(#11755-12669)
| 01***65 | Bolt - Return Line And Suction Linehose Clamps | 4 |
| 01***95 | Capscrew | 8 |
| 62***31 | Pin,Dowel | 4 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump Bracket (For Electrical Governor)(#12670-)
| 01***70 | Bolt - Bracket And Oil Inlet Tubemounting | 4 |
| 01***95 | Capscrew | 8 |
| 01***32 | Washer,(With Auto Emergency Steering) | 12 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump Bracket(#11640-12669)
| 01***65 | Bolt - Return Line And Suction Linehose Clamps | 4 |
| 01***95 | Capscrew | 8 |
| 62***31 | Pin,Dowel | 4 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump Bracket(#12670-)
| 01***70 | Bolt - Bracket And Oil Inlet Tubemounting | 4 |
| 01***95 | Capscrew | 8 |
| 01***32 | Washer,(With Auto Emergency Steering) | 12 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump Drive
| 01***30 | Bolt,(Not Used When Towing Winch) | 8 |
| 01***20 | Bolt, Mount Spool Covers | 6 |
| 01***13 | Nut, Regular Hexagon (M22-1.25) | 2 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump Linkage
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***03 | Nut? L.H. Thread,L.H. Thread | 1 |
| 01***05 | Nut (Welded) | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump Lubricating (1/2) (L.H. Bank)
| 07***12 | Gasket,(Without Air Compressor Type) (K1) | 2 |
| 07***14 | Screw, Banjo Connector (M10) | 1 |
| 61***20 | Nipple | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump Lubricating (1/2) (L.H. Bank) (For Electrical Governor)(#11755-)
| 07***12 | Gasket,(Without Air Compressor Type) (K2) | 4 |
| 07***12 | Gasket,(Without Air Compressor Type) (K1) | 2 |
| 07***10 | Screw, Banjo Connector (M10-1.25x20) | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump Lubricating (2/2) (R.H. Bank)
| 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 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump Lubricating (2/2) (R.H. Bank) (For Electrical Governor)(#11755-)
| 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 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump Mounting
| 01***90 | Bolt,(For No?1 And No?3 Housing) | 8 |
| 01***32 | Washer, (Without Emergency Steering) | 8 |
| 07***12 | Gasket,(Without Air Compressor Type) (K2) | 2 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump Mounting (For Electrical Governor)
| 01***00 | Bolt | 8 |
| 01***32 | Washer, (Without Emergency Steering) | 8 |
| 07***08 | Plug,(Without Lock-Up), Plug | 2 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump Piping (1/2) (L.H. Bank)
| 01***25 | Capscrew | 7 |
| 01***30 | Screw | 7 |
| 01***35 | Bolt | 4 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump Piping (1/2) (L.H. Bank) (For Electrical Governor)(#11755-12983)
| 01***25 | Capscrew | 7 |
| 01***30 | Screw | 7 |
| 01***35 | Bolt | 4 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump Piping (1/2) (L.H. Bank) (For Electrical Governor)(#12984-)
| 01***30 | Screw | 7 |
| 01***35 | Bolt | 6 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump Piping (2/2) (R.H. Bank)
| 01***25 | Capscrew | 5 |
| 01***30 | Screw | 5 |
| 01***35 | Bolt | 4 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump Piping (2/2) (R.H. Bank) (For Electrical Governor)(#11755-12983)
| 01***25 | Capscrew | 7 |
| 01***30 | Screw | 7 |
| 01***35 | Bolt | 4 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Injection Pump Piping (2/2) (R.H. Bank) (For Electrical Governor)(#12984-)
| 01***30 | Screw | 11 |
| 01***35 | Bolt | 4 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Piping (L.H. Bank)(#11911-11921)
| 01***25 | Bolt,(Rear Attachment Less) | 2 |
| 01***25 | Screw | 2 |
| 01***25 | Screw | 2 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Piping (L.H. Bank)(#11922-)
| 01***25 | Bolt,(Rear Attachment Less) | 2 |
| 01***20 | Bolt | 2 |
| 01***25 | Screw | 2 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Piping (R.H. Bank)(#11911-11921)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***95 | Bolt | 1 |
| 01***20 | Bolt | 2 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Piping (R.H. Bank)(#11922-)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***95 | Bolt | 1 |
| 01***20 | Bolt | 2 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Return (L.H. Bank)
| 01***25 | Bolt | 1 |
| 07***12 | Gasket,Mechanical Pump Piping | 3 |
| 07***08 | Plug,(Without Oil Pressure Switch) | 2 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Return (L.H. Bank) (For Electrical Governor)(#11640-12795)
| 04***10 | Clip | 1 |
| 07***12 | Gasket,Mechanical Pump Piping | 3 |
| 07***12 | Gasket,(Without Air Compressor Type) (K1) | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Return (L.H. Bank)(#12796-)
| 01***30 | Screw | 2 |
| 01***25 | Bolt,(Rear Attachment Less) | 1 |
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Return (R.H. Bank)
| 01***25 | Bolt | 1 |
| 07***12 | Gasket,Mechanical Pump Piping | 3 |
| 07***08 | Plug,(Without Oil Pressure Switch) | 2 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Return (R.H. Bank) (For Electrical Governor)(#11640-12795)
| 04***10 | Clip | 1 |
| 07***12 | Gasket,Mechanical Pump Piping | 3 |
| 07***12 | Gasket,(Without Air Compressor Type) (K1) | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Fuel Return (R.H. Bank)(#12796-)
| 01***25 | Bolt,(Rear Attachment Less) | 1 |
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Gear Case Related Parts(#11949-)
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 13 |
| 07***08 | Plug,(Without Lock-Up), Plug | 4 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Gear Case(#11640-11948)
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 13 |
| 07***08 | Plug,(Without Lock-Up), Plug | 4 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Head Cover And Shield Plate(#11640-11948)
| 01***55 | Screw | 36 |
| 62***11 | Cover,Rocker Arm Housing | 12 |
| 62***20 | Gasket, Rocker Lever Housing | 12 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Head Cover(#11949-)
| 01***55 | Screw | 36 |
| 62***11 | Cover,Rocker Arm Housing | 12 |
| 62***20 | Gasket, Rocker Lever Housing | 12 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Heat Shield (For Wa800?900-2 And Hd785?985-3)
| 01***35 | Capscrew | 8 |
| 01***40 | Capscrew | 8 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Heater Switch (L.H. Bank)
| 01***12 | Bolt,(With Speedometer) | 2 |
| 01***16 | Bolt - Starting Motor Ground Cable | 5 |
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 4 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Heater Switch (R.H. Bank)
| 01***12 | Bolt,(With Speedometer) | 2 |
| 01***16 | Bolt - Starting Motor Ground Cable | 5 |
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 4 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Idler Gear
| 01***40 | Bolt (Op) | 12 |
| 01***80 | Bolt,For Weight Adjusting Bolt | 2 |
| 01***10 | Bolt,For Weight Adjusting Bolt | 4 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Muffler Piping(#11832-)
| 01***45 | Capscrew | 10 |
| 01***50 | Bolt | 12 |
| 62***80 | Connector | 2 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Muffler(#11832-)
| 01***30 | Bolt,(With Body Positioner) | 5 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 4 |
| 01***45 | Bolt,(With Water Separator Type) | 7 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Name Plate And Caution (Japanese-English)
| 04***60 | Screw, Serial Number Plate | 4 |
| 60***40 | Plate? Name,(Limited Supply) | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Nozzle Holder (Inner Parts)
| 62***12 | Holder Ass'Y,(See Fig.A4210-B7a4) | 12 |
| DK***00 | Shim? 0.725mm | 0 |
| DK***00 | Shim? 0.525mm | 0 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Oil Adapter
| 01***12 | Bolt - M8 - 1.25 X 12 | 3 |
| 01***65 | Bolt - Return Line And Suction Linehose Clamps | 1 |
| 01***80 | Bolt,(With Corrosion Resistor) | 6 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Oil Cooler Mounting(#11949-)
| 01***75 | Bolt (M10-1.50x75) | 4 |
| 07***40 | O-Ring,Cooling Valve | 1 |
| 07***40 | O-Ring,(For Hd325-6?Hm400-1) (A3110) | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Oil Cooler(#11640-11948)
| 01***30 | Bolt,(With Body Positioner) | 24 |
| 01***65 | Bolt - Return Line And Suction Linehose Clamps | 2 |
| 01***75 | Bolt (M10-1.50x75) | 4 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Oil Cooler(#11949-)
| 01***30 | Bolt,(With Body Positioner) | 24 |
| 01***65 | Bolt - Return Line And Suction Linehose Clamps | 2 |
| 07***16 | O-Ring (K2) | 8 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Oil Filler
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 07***38 | O-Ring,(For Slag Handling) | 1 |
| 07***38 | Seal, O-Ring | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Oil Filter
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***30 | Bolt,(With Body Positioner) | 7 |
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 13 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Oil Level Gauge
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 07***12 | O-Ring,(Extreme Cold Terrain Spec.) (K2) | 1 |
| 07***12 | O-Ring,(F4350-59a1 -17 ) | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Oil Level Gauge(#11972-)
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
| 04***10 | Clip | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Oil Pan And Suction Tube
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 24 |
| 01***30 | Bolt,(With Body Positioner) | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Oil Pan And Suction Tube(#11972-)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 24 |
| 01***30 | Bolt,(With Body Positioner) | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Oil Pump
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***55 | Bolt,(See Service News) | 1 |
| 01***20 | Bolt,(Forwarded Individually Parts) | 5 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Piston
| 02***13 | Pin, Dowel | 2 |
| 04***20 | Ring, Retaining | 24 |
| 62***33 | Piston Ring Ass'Y,Per Cylinder | 12 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Rocker Arm And Housing(#11640-11948)
| 01***85 | Bolt (M10-1.50x85) | 2 |
| 01***80 | Bolt (M12-2.00x80) | 12 |
| 01***80 | Bolt (M10-1.50x80) | 34 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Safety Guard (Injection Pump Drive)
| 01***20 | Bolt,(For Mono Lever Steering) | 14 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***40 | Bolt (Op) | 2 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Safety Guard (Injection Pump Drive) (For Electrical Governor)(#11911-11999)
| 01***20 | Bolt,(For Mono Lever Steering) | 10 |
| 01***75 | Bolt (M10-1.50x75) | 2 |
| 01***00 | Bolt,(For Front Brake Release) | 2 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Safety Guard (Injection Pump Drive) (For Electrical Governor)(#12000-)
| 01***20 | Bolt,(For Mono Lever Steering) | 6 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***75 | Bolt (M10-1.50x75) | 2 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Shield Plate(#11949-)
| 62***10 | Plate,Heat Shield | 2 |
| 62***11 | Plate,Heat Shield | 2 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Starting Motor (7.5kw) (Inner Parts)(#11640-12608)
| 60***31 | Starting Motor Ass'Y,(7.5kw) | 1 |
| KD***20 | Magnetic Switch Assembly | 1 |
| KD***40 | Spring,Spring | 4 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Starting Motor (7.5kw) (Inner Parts)(#12609-)
| 60***32 | Starting Motor Ass'Y,(7.5kw) | 2 |
| KD***20 | Magnetic Switch Assembly | 1 |
| KD***40 | Spring,Spring | 4 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Starting Motor Mounting (7.5kw)
| 01***40 | Bolt (Kit) | 6 |
| 01***20 | Bolt | 2 |
| 01***08 | Nut,R.H. Thread | 2 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Stop Motor And Linkage (For Mechanical Governor)(#11640-12377)
| 01***16 | Bolt,(Sandy And Dusty Spec.) | 2 |
| 01***05 | Nut (Welded) | 1 |
| 60***30 | Motor Ass'Y,(For Engine Stop) | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Stop Motor And Linkage (For Mechanical Governor)(#12378-)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 61***90 | Spacer | 2 |
| 62***50 | Bracket | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Stop Motor And Linkage (Mechanical Governor Spec.)(#12378-)
| 01***05 | Nut (Welded) | 1 |
| 60***31 | Motor,Stop | 1 |
| 69***10 | Joint,Ball | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Tension Pulley
| 01***10 | Bolt,(With Auto Emergency Steering) | 1 |
| 01***16 | Bolt - Seat And Tether Belt Mounting | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Thermostat Housing
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***10 | Bolt,(With Joy Stick Steering) | 2 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Thermostat Housing (With Air Comppressor)(#11922-)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***10 | Bolt,(With Joy Stick Steering) | 2 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Turbocharger (Ktr110g-F45a) (Inner Parts)
| 01***16 | Bolt | 4 |
| 01***16 | Bolt | 8 |
| 01***16 | Bolt | 8 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Turbocharger Blind Cover
| 01***25 | Bolt,Joint | 16 |
| 61***30 | Plate | 8 |
| 61***41 | Gasket,(Fig.A1530) | 8 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Turbocharger Oil Piping
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 4 |
| 01***16 | Bolt - Starting Motor Ground Cable | 5 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Water Pump Gasket Kit
| 07***60 | O-Ring,(For Pc750?800?1800) (A2610) | 1 |
| 07***80 | O-Ring,Hydraulic Oil Filter | 1 |
| 07***90 | O-Ring,(Dk029369-0020) (K2) | 1 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Water Pump(#11640-11882)
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***30 | Bolt,(With Body Positioner) | 7 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 2 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Water Pump(#11883-12237)
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***30 | Bolt,(With Body Positioner) | 7 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 2 |
Komatsu : Sa12v140-1s-Wd(S/N 11640-Up) : Engine : Water Pump(#12238-)
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 2 |
| 01***10 | Bolt,(With Joy Stick Steering) | 3 |
Frequently asked questions
What engine does the Komatsu SA12V140-1S-WD use?
It uses the Komatsu SA12V140-1, a 12-cylinder, water-cooled, turbocharged and aftercooled V12 diesel engine with a 140 mm bore and 165 mm stroke, displacing 30.5 liters.
What is the operating weight of the machine powered by this engine?
Operating weight varies by configuration and series. For the Komatsu 330M rigid hauler, the GVW class is approximately 300,000+ lb (136+ metric tons). For wheel loaders like the WA800, weights vary by configuration.
What replaced the SA12V140-1S-WD?
The SA12V140-1 series was succeeded by newer emissions-compliant engine generations such as the SAA6D140 and SAA6D125E series in later dash-number models (e.g., -10 and -11 generations) to meet Tier 4 Final and Stage V regulations.
What SA12V140-1S-WD(S/N 11640-UP) owners discuss
What are the core engine specifications and power output for the SA12V140-1 series?
The SA12V140-1 is a 12-cylinder, water-cooled, turbocharged, and aftercooled V12 diesel engine. It features a 140 mm bore and a 165 mm stroke, resulting in a total displacement of 30.5 liters. Net power output varies by configuration and series, typically ranging from 627 kW to 783 kW depending on the specific application mode (e.g., high power or economy mode) and rated RPM (commonly 2,000 or 2,100 RPM). Torque figures vary by configuration/series, with peak values often cited around 3,730 Nm to 4,170 Nm at lower RPMs such as 1,300 to 1,500 RPM. The engine dry mass is approximately 3,200 kg. The SA12V140-1S-WD variant is part of the Build 13A generation within the 140 Series engine family, distinct from the SA12V140Z-1 used in rigid haul trucks like the 330M, which utilizes a mechanical jerk-pump system without an electronic engine controller. The SA12V140-1 series generally employs mechanical fuel injection pumps driven by the engine camshaft, with specific drive mechanisms detailed in the parts catalog for the SA12V140-1S-WD model. The engine is applied in bulldozers, wheel loaders, dump trucks, and stationary generators (e.g., EG750B-1L, DCA-800SSK). Fuel efficiency at rated RPM is approximately 215 g/kWh. The engine uses Komatsu EO or equivalent heavy-duty diesel engine oil, Komatsu TO or equivalent hydraulic oil, and Super-coolant AF-NAC or equivalent coolant. Always verify the exact serial prefix and build code against the factory spec sheet for the specific machine application, as configurations differ between generator sets, mobile earthmoving equipment, and mining haulers. Have your dealer verify the exact power rating and torque curve for your specific machine serial number and application package. (Note: The SA12V140-1S-WD engine is identified as Build 13A in parts catalogs; ensure this matches the engine data plate, as serial ranges like 11640-UP may indicate a specific machine application rather than the engine build itself, which requires cross-referencing with the Komatsu shop manual SEBM028318 for the SA12V140-1, SDA12V140E-1, and SAA12V140-1 series.)
What are the common powertrain and hydraulic behaviors associated with machines using this engine series?
Machines powered by the SA12V140-1 series, such as the WA800-3 wheel loader or D31-series dozers, often exhibit hydraulic performance sensitive to engine RPM and oil temperature. A common diagnostic pattern is hydraulic weakness that appears only when the system is hot, indicating internal leakage in pumps, control valves, or cylinders that is masked by higher viscosity when cold. If all hydraulic functions (boom, arm, bucket, swing, travel) become slow simultaneously, the issue typically lies in the main hydraulic pump, pilot control system, or engine speed under load rather than individual cylinders. If only one function is slow, focus on the specific circuit, load-holding valves, or mechanical binding. Engine power loss under heavy digging or loading loads is frequently caused by restricted air filters, clogged fuel filters, or blocked charge-air hoses rather than internal engine failure. The cooling package (radiator, hydraulic oil cooler, charge-air cooler) requires regular inspection for packed debris between heat exchangers, as marginal cooling capacity can cause temperature rise during heavy work that subsides at idle. For machines with retarders, note that retarder options affect weight and thermal load. The SA12V140-1S-WD engine is associated with specific fuel injection pump drive mechanisms; ensure the drive gear and timing are correct during service to maintain proper injection timing. Have your dealer verify hydraulic pressure settings and engine governor calibration for the specific machine model.
What undercarriage or wear patterns are typical for crawler equipment using this engine?
Crawler equipment powered by the SA12V140-1 series, such as bulldozers, typically experiences undercarriage wear patterns dependent on ground conditions and track tension. Common issues include track chains loosening repeatedly due to improper tensioning or worn sprockets/rollers. Pulling to one side during travel often indicates uneven track tension, mud/debris packed into one undercarriage, or worn rollers rather than a travel motor failure. Test travel speed in both forward and reverse to isolate hydraulic final drive issues from mechanical resistance. Final drive noise often correlates with low oil levels or contamination. The heavy operating weight of machines in this class (often exceeding 30,000 kg) places significant stress on track shoes and rollers. Regular inspection of track-chain condition and roller wear is critical. For wheel loader variants (e.g., WA320-8, WA800-3), tire size and condition affect ground pressure and stability, but the engine series itself does not dictate tire wear patterns directly. Always confirm the exact undercarriage configuration (shoe width, type) against the machine's serial range, as specifications vary by configuration/series. Have your dealer verify track tension and final drive oil levels during routine service.
What are the known engine quirks and maintenance requirements for the SA12V140-1 series?
The SA12V140-1 series is a mechanical diesel engine with no electronic engine controller, relying on mechanical jerk-pump fuel injection. This design offers predictable rebuild costs and parts interchangeability but requires careful attention to mechanical adjustments. Key maintenance points include regular inspection of the fuel injection pump drive mechanism, as detailed in the parts catalog for the SA12V140-1S-WD. The engine uses a specific set of bearings (main, rod, cam), pistons, and cylinder liners that are shared across the SA12V140-1, SDA12V140E-1, and SAA12V140-1 builds, facilitating overhauls. Bolt torques for cylinder heads, main bearings, and connecting rods must be strictly adhered to as per the Komatsu shop manual SEBM028318. The engine is sensitive to fuel quality; water in the fuel separator or air entering the fuel supply can cause starting issues or power loss. Coolant level must be checked when cold, as the system can become highly pressurized if air is trapped or if there is a deeper engine issue. The engine dry mass is 3,200 kg, which impacts transport and handling during maintenance. Fluid specifications include Komatsu EO for engine oil, Komatsu TO for hydraulic oil, and Super-coolant AF-NAC. The engine is applied in various configurations, including generator sets (e.g., DCA-800SSK) where output ranges from 500 kW to 700 kW. Always verify the exact build code (e.g., Build 13A) and serial range against the engine data plate, as parts and specifications vary by configuration/series. Have your dealer verify fuel injection timing and governor settings during major service intervals.
What are the common electrical or sensor issues for machines equipped with the SA12V140-1S-WD engine?
While the SA12V140-1 engine itself is mechanically governed and lacks an electronic engine controller, the host machine (e.g., excavator, dozer, loader) utilizes electrical systems for controls, displays, and safety interlocks. Common electrical issues in Komatsu machines of this era include multiple fault codes related to battery state, grounds, and connectors. A battery may show acceptable voltage until the starter is loaded; perform a load and voltage-drop test if starting is difficult. Check engine and chassis grounds, main starter cable, and starter relay. Fault codes may indicate issues with pilot control inputs, travel control inputs, or safety lock/interlock circuits. The machine display may show warning messages related to hydraulic oil temperature, coolant temperature, or engine RPM. If the machine suddenly derates, check the exact warning and codes, which may relate to engine or aftertreatment systems (if equipped, though the SA12V140-1 is typically pre-Tier 4). Electrical diagnosis should start with battery health and ground integrity. The SA12V140-1S-WD engine may have specific sensors for oil pressure, coolant temperature, and fuel level that interface with the machine's ECU. Ensure all connectors are secure and free of corrosion. Have your dealer verify the machine's electrical system and sensor calibration, as the engine itself does not have electronic diagnostics.
What should be checked when buying a used machine with the SA12V140-1S-WD engine (S/N 11640-UP)?
When purchasing a used machine with the SA12V140-1S-WD engine (S/N 11640-UP), verify the engine data plate to confirm the exact build code (likely Build 13A) and serial range. Cross-reference the machine serial number with the Komatsu shop manual SEBM028318 to confirm the correct engine model and specifications, as the machine S/N may not directly match the engine S/N. Check the engine for oil leaks, particularly around the front and rear crankshaft seals, cylinder head gaskets, and oil pan gasket. Inspect the fuel injection pump drive mechanism for wear. Test the engine under load to ensure it reaches rated RPM and power output without excessive smoke or noise. Check the cooling system for leaks and proper pressure. Inspect the hydraulic system for performance when cold and hot, noting any weakness that appears only when hot. Check the undercarriage for wear, track tension, and final drive condition. Verify the machine's electrical system, including battery health, starter operation, and absence of persistent fault codes. Review maintenance records for regular fluid changes (engine oil, hydraulic oil, coolant) and filter replacements. Be aware that specifications such as weight, power, and hydraulic capacity vary by configuration/series, so confirm the exact machine configuration against the factory spec sheet. Have your dealer verify the engine and machine condition, as the source text does not provide specific diagnostic thresholds for used equipment.
How does the SA12V140-1S-WD engine differ from the SA12V140Z-1 in terms of application and design?
The SA12V140-1S-WD engine is part of the SA12V140-1 series (Build 13A), used in mobile earthmoving equipment like bulldozers, wheel loaders, and dump trucks, as well as some generator sets. It is a water-cooled, turbocharged, and aftercooled V12 diesel with mechanical jerk-pump fuel injection. The SA12V140Z-1 is a variant used primarily in the Komatsu 330M rigid haul truck, also featuring mechanical jerk-pump injection and no electronic engine controller. Both engines share the same basic architecture (12 cylinders, 140 mm bore, 165 mm stroke, 30.5 L displacement) and have similar dry mass (approx. 3,200 kg). However, the SA12V140-1 series is associated with specific applications like the WA800-3 wheel loader and D31 dozer, while the SA12V140Z-1 is linked to the 330M hauler. The SA12V140-1S-WD has specific fuel injection pump drive mechanisms detailed in parts catalogs. The SA12V140Z-1-powered 330M saw incremental factory running changes over its production run. Both engines rely on mechanical simplicity for reliability and parts interchangeability. Specifications such as power output and torque vary by configuration/series. Have your dealer verify the exact engine model and application for your machine, as the SA12V140-1S-WD is a specific variant within the broader SA12V140-1 family.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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