Komatsu SA12V140-1D(S/N 10034-UP (MECHANICAL GOVERNOR))
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu SA12V140-1D (S/N 10034-UP, Mechanical Governor) is a heavy-duty, water-cooled, turbocharged and aftercooled V12 diesel engine. It features a 140 mm bore and 165 mm stroke, displacing 30.5 liters (30,480 cc). This engine powers the Komatsu 330M rigid-frame haul truck, a mechanical-drive vehicle from the Dresser/Komatsu Haulpak lineage designed for large-scale mining and quarry hauling. The 330M operates in the roughly 300,000+ lb (136+ metric ton) GVW class, utilizing a torque converter and powershift transmission to drive mechanical axles with 27.00-49 tires. The SA12V140-1D series is part of the broader SA12V140 engine family, which also includes variants like the SA12V140Z-1 and SA12V140-1A, distinguished by governor type and serial block.
The SA12V140-1D (S/N 10034-UP) represents a specific generation within the SA12V140-1 series, characterized by its mechanical jerk-pump fuel injection and mechanical governor, lacking an electronic engine controller. This mechanical simplicity allows for straightforward maintenance and diagnosis using conventional shop practices, keeping the machine active in mining and construction fleets well beyond typical service lives. In the used and parts market, this engine remains relevant due to its predictable rebuild costs and broad component interchangeability across the SA12V140 build blocks. The transition to electronic governors in later serial ranges (such as the SA12V140-1C) marks the shift away from this purely mechanical architecture, making the 1D series a distinct and valued platform for mechanics preferring analog diagnostics.
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 SA12V140-1D(S/N 10034-UP (MECHANICAL GOVERNOR)) specifications
Engine
| Model | SA12V140-1 |
| Configuration | V-type 12-cylinder, water-cooled, 4-cycle, turbocharged and aftercooled |
| Displacement | 30.5 L (30,480 cc) |
| Bore x Stroke | 140.0 mm x 165.0 mm |
| Governor Type | Mechanical (per serial range S/N 10034-UP) |
| Fuel Injection Pump | BOSCH PE-P (PS7S) type |
| Firing Order | R1 — L1 — R5 — L5 — R3 — L3 — R6 — L6 — R2 — L2 — R4 — L4 |
| Gross Power | 603 kW (808 HP) @ 2,000 rpm |
| Net Power | 574 kW (770 HP) @ 2,000 rpm |
| Emissions Tier | Not documented (pre-Tier emissions-era mechanical/electrohydraulic diesel) |
Weights
| Dry Weight | 3,300 kg (7,275 lb) |
Dimensions
| Overall Length | 1,715 mm (5 ft 7.5 in) |
| Overall Width | 1,515 mm (4 ft 11.6 in) |
| Overall Height (excluding exhaust pipe) | 1,475 mm (4 ft 10 in) |
| Overall Height (including exhaust pipe) | 1,592 mm (5 ft 2.7 in) |
Performance
| Rated Speed | 2,000 rpm |
| Maximum Torque | 3,730 N·m (2,752 lbf·ft) @ 1,400 rpm |
| Low Idling Speed | 750 — 850 rpm |
| Minimum Fuel Consumption Ratio | 211 g/kW·h (157 g/HP·h) @ rated flywheel horsepower (Net, 50 Hz) |
Service capacities (summary)
| Lubricating Oil Amount (Refill) | 103 L (27.2 US gal) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
Komatsu SA12V140-1D(S/N 10034-UP (MECHANICAL GOVERNOR)) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 6,000 h |
|
Servicing the SA12V140-1D(S/N 10034-UP (MECHANICAL GOVERNOR)) beyond the schedule
Predictive Maintenance & Fluid Analysis
With no ECM or fault codes on the SA12V140-1D, condition monitoring relies on scheduled fluid sampling and gauge trends. Pull oil samples from the engine, torque converter, and axle housings at the 500-hour interval for Komatsu Oil Wear Analysis (KOWA). Monitor coolant pH and SCA concentration to prevent corrosion in the 30.5-liter cooling system. Track fuel quality closely, as the mechanical jerk-pump injection system is sensitive to waxing and cold-start fuel issues. Use Komatsu EO engine oil and Super Coolant AF-NAC or AF-ACL to maintain system integrity and detect early wear metals or contamination.
Corrective & Common Repairs
Address fuel system wear by inspecting the injection pump drive and fuel linkage for correct travel and play at every 1,000-hour service. Check the turbocharger and aftercooler for oil seepage and boost leaks, securing mounting hardware as needed. Inspect wet-disc brake packs and cooling oil circuits for wear beyond service limits during the 2,000-hour interval. Verify wheel-rim nut torque and axle housing oil levels regularly. Replace primary and secondary fuel filters at 500 hours to protect the mechanical injection components from contamination and ensure consistent fuel delivery.
Overhaul & Rebuild Points
Evaluate the SA12V140-1D for a top-end or in-frame overhaul at the 6,000-hour mark based on oil consumption, blow-by, and compression trends. Pull the torque converter and powershift transmission for internal inspection or rebuild of clutch packs and bearings. Overhaul wet-disc brake assemblies and replace brake cooling oil circuit components as needed. Rebuild or replace front and rear axle housings, differentials, and final drive gearing as wear dictates. Inspect the steering system pump, cylinders, and linkage for rebuild requirements to maintain precise haul truck handling.
Seasonal & Environment Servicing
In cold climates, use the correct Komatsu EO viscosity grade (EO10W30-LA or EO15W40-LA) and verify coolant protection with Super Coolant AF-NAC or AF-ACL ahead of winter. The SA12V140-1D mechanical injection system requires winter-grade fuel blends to prevent waxing. Check tire condition and inflation on all 27.00-49 positions, inspecting rims for cracks in extreme temperature cycles. Grease all chassis, hoist, and articulation points with G2-LI multipurpose lithium EP grease, ensuring pins and bushings remain protected against moisture and debris in harsh mining or quarry environments.
SA12V140-1D(S/N 10034-UP (MECHANICAL GOVERNOR)) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 600-311-7111 | Cartridge,Fuel Filter | Fuel system service | Check fitment → |
| 07000-02080 | O-Ring,Hydraulic Oil Filter | Hydraulic service | Check fitment → |
| 600-211-1100 | Oil Filter Sub A | Lubrication service | Check fitment → |
| 600-211-1101 | Oil Filter Sub A | Lubrication service | Check fitment → |
| 600-211-1230 | Cartridge,Oil Filter | Lubrication service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
SA12V140-1D(S/N 10034-UP (MECHANICAL GOVERNOR)) 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 degradation, or voltage regulator issue | Replace the alternator or battery; check the voltage regulator |
| CA442 | Battery voltage too high | Alternator overcharging or voltage regulator failure | Replace the alternator or battery; 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 |
| CA428 | Fuel moisture sensor invalid voltage (High) | Fuel contamination or sensor harness issue | Ensure a clean fuel supply and check the moisture sensor harness |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
SA12V140-1D(S/N 10034-UP (MECHANICAL GOVERNOR)) attachments & work tools
Bulldozer Blade Configurations
The SA12V140-1 engine powers the D475A-2 bulldozer, which utilizes large earthmoving blades with capacities exceeding 60 cubic yards (50 cubic meters) for heavy-duty land clearing and mining applications.
Wheel Loader Bucket Configurations
Compatible with the WA800-2 and WA900-1 wheel loaders, this engine class supports heavy-duty buckets typically sized for 10 to 20 cubic yard (8 to 15 cubic meter) material handling, with specific configurations varying by machine serial range.
Rigid Hauler Body Configurations
The SA12V140-1 and related variants power the HD785 and HD985 rigid dump trucks, which are equipped with high-capacity bodies designed for 70 to 90 short ton (63 to 82 metric ton) payloads in mining operations.
Generator Set Enclosures
Used in stationary power generation units such as the EGS1000, EGS1050, and EGS1200 series, these configurations include sound-attenuated enclosures and cooling systems rated for 500 to 1200 kW output.
Hydraulic System Arrangement
The engine drives hydraulic pumps for loaders and dozers; the mechanical governor variant requires specific Bosch PE-P or Zexel fuel injection pump setups that interface with the machine's hydraulic load-sensing systems.
Cooling and Air Intake Options
Factory configurations include radiator-cooled systems for standard operation and specialized air filtration packages for dusty mining environments, with coolant protection specified using Komatsu Super Coolant AF-NAC or AF-ACL for cold climates.
All SA12V140-1D(S/N 10034-UP (MECHANICAL GOVERNOR)) assemblies by section
Every catalogued assembly group for the Komatsu SA12V140-1D(S/N 10034-UP (MECHANICAL GOVERNOR)). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Accessory
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Accessory : Air Compressor (Front) (Inner Parts)
| 62***01 | Air Compressor A.,(See Fig.A7010-D7a3) | 1 |
| DK***40 | Gasket,Air Compressor | 1 |
| DK***40 | Gasket,Air Compressor | 1 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Accessory : Air Compressor (Rear) (Inner Parts)
| 62***01 | Air Compressor A.,(See Fig.A7010-E7a3) | 1 |
| DK***40 | Gasket,Air Compressor | 1 |
| DK***40 | Gasket,Air Compressor | 1 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Accessory : Air Compressor And Mounting (Mechanical Governor Spec.)(#10036-)
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 2 |
| 01***45 | Bolt,(Cold Terrain Spec.) | 2 |
| 01***95 | Bolt, Mount Filter Support | 3 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Accessory : Air Compressor Piping (1/2)
| 01***35 | Bolt,(Without Auto Priming System) | 1 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***55 | Bolt,(For Suction? Reversible Fan) | 2 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Accessory : Air Compressor Piping (2/2)
| 07***12 | Gasket,(Without Air Compressor Type) (K2) | 10 |
| 07***12 | Gasket,(Without Air Compressor Type) (K1) | 12 |
| 07***10 | Screw, Banjo Connector (M10-1.25x20) | 4 |
Cooling System
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cooling System : Cooling Fan And Mounting
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 18 |
| 01***40 | Bolt,(Dust And Dirt Protection) | 8 |
| 01***35 | Bolt,(For Pedal Steering) | 2 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cooling System : Cooling System Piping(#10034-10046)
| 01***35 | Bolt, Mounting - Flywheel Housing End | 2 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 4 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 4 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cooling System : Cooling System Piping(#10047-)
| 01***35 | Bolt,(F4320-52a0 -5 ) | 2 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 4 |
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 4 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cooling System : Corrosion Resister And Mounting
| 01***35 | Bolt, Mounting - Flywheel Housing End | 2 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 2 |
| 07***06 | O-Ring,Corrosion Resistor | 1 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cooling System : Tension Pulley And Mounting
| 01***16 | Bolt,(For Slag Handling) | 2 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 1 |
| 01***40 | Bolt,(Dust And Dirt Protection) | 1 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cooling System : Thermostat And Mounting
| 01***20 | Bolt,(For Mono Lever Steering) | 3 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***30 | Bolt,(With Body Positioner) | 1 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cooling System : Water Pump And Mounting(#10036-)
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***30 | Bolt,(With Body Positioner) | 7 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 2 |
Cylinder Block
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Block : Camshaft (Mechanical Governor Spec.)(#10036-)
| 01***20 | Bolt (M12-1.75x20) | 4 |
| 04***25 | Key, Plain Woodruff | 1 |
| 04***12 | Ring, Retaining | 48 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Block : Crankshaft (Mechanical Governor Spec.)(#10036-)
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 12 |
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 12 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 12 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Block : Cylinder Block Cover (Mechanical Governor Spec.)(#10036-)
| 01***16 | Bolt - Box Mounting | 2 |
| 01***16 | Bolt - Seat And Tether Belt Mounting | 1 |
| 01***25 | Bolt,(Rear Attachment Less) | 2 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Block : Cylinder Block(#10034-10908)
| 01***20 | Bolt | 12 |
| 01***16 | Washer,(With Water Separator) | 12 |
| 01***60 | Washer,(Without Rops Guard? Canopy) | 14 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Block : Cylinder Block(#10909-)
| 01***20 | Bolt | 12 |
| 01***16 | Washer,(With Water Separator) | 12 |
| 01***60 | Washer,(Without Rops Guard? Canopy) | 14 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Block : Flywheel And Flywheel Housing (Mechanical Governor Spec.)
| 01***30 | Screw | 3 |
| 01***65 | Bolt,L.H | 14 |
| 01***50 | Bolt, Fuel Tank Mounting - Front Left | 8 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Block : Front Cover (Mechanical Governor Spec.)(#10036-10094)
| 01***30 | Bolt,(For France Noise Suppression) | 1 |
| 01***20 | Bolt,(Used When Towing Winch) | 3 |
| 01***75 | Bolt,(For 75a Alternator) | 8 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Block : Front Cover (Mechanical Governor Spec.)(#10095-10276)
| 01***30 | Bolt,(For France Noise Suppression) | 1 |
| 01***20 | Bolt,(Used When Towing Winch) | 3 |
| 01***75 | Bolt,(For 75a Alternator) | 8 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Block : Front Cover (Mechanical Governor Spec.)(#10277-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***30 | Bolt,(With Body Positioner) | 1 |
| 01***40 | Bolt (Op) | 4 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Block : Gear Case And Gear (Mechanical Governor Spec.)(#10036-11023)
| 01***40 | Screw, Hex Socket | 12 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 13 |
| 01***80 | Bolt,For Weight Adjusting Bolt | 2 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Block : Gear Case And Gear (Mechanical Governor Spec.)(#11024-)
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Block : Oil Pan (Mechanical Governor Spec.)(#10036-)
| 01***12 | Bolt,(Without R.P.C.U.) | 3 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 2 |
| 01***30 | Bolt,(For France Noise Suppression) | 52 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Block : Piston And Connecting Rod(#10034-11044)
| 02***13 | Pin, Dowel | 2 |
| 04***20 | Ring, Retaining | 24 |
| 62***31 | Piston Ring Ass'Y,Per Cylinder | 12 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Block : Piston And Connecting Rod(#10909-)
| 02***13 | Pin, Dowel | 2 |
| 04***20 | Ring, Retaining | 24 |
| 62***33 | Piston Ring Ass'Y,Per Cylinder | 12 |
Cylinder Head
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Head : Air Intake Manifold And After Cooler (1/2) (L.H. Bank) (Mechanical Governor Spec.)(#10036-10228)
| 01***20 | Bolt,(Large Capacity Type) (Std) | 3 |
| 01***00 | Bolt (M10-1.50x100) | 11 |
| 01***05 | Bolt (M10-1.50x105) | 4 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Head : Air Intake Manifold And After Cooler (1/2) (L.H. Bank) (Mechanical Governor Spec.)(#10229-)
| 01***00 | Bolt (M10-1.50x100) | 9 |
| 01***05 | Bolt (M10-1.50x105) | 3 |
| 01***60 | Bolt (M10-1.50x160) | 11 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Head : Air Intake Manifold And After Cooler (2/2) (R.H. Bank)(#10034-10165)
| 01***20 | Bolt,(Large Capacity Type) (Std) | 3 |
| 01***00 | Bolt (M10-1.50x100) | 11 |
| 01***05 | Bolt (M10-1.50x105) | 4 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Head : Air Intake Manifold And After Cooler (2/2) (R.H. Bank)(#10166-)
| 01***00 | Bolt (M10-1.50x100) | 8 |
| 01***05 | Bolt (M10-1.50x105) | 4 |
| 01***60 | Bolt (M10-1.50x160) | 9 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Head : Cylinder Head(#10034-10908)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 12 |
| 01***20 | Bolt (M10-1.75x120) | 12 |
| 02***04 | Plug, Pipe | 12 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Head : Cylinder Head(#10909-)
| 01***20 | Bolt (M10-1.75x120) | 12 |
| 04***20 | Pin,Dowel (Welded) | 2 |
| 07***25 | O-Ring,Lubrication Valve | 1 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Head : Exhaust Brake (Inner Parts)(#10034-10549)
| 62***00 | Exhaust Brake Ass'Y | 1 |
| 62***70 | Spring,(Repair Part) (For Japan) | 1 |
| 62***80 | Spring,(Repair Part) (For Japan) | 1 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Head : Exhaust Brake (Inner Parts)(#12861-12958)
| 62***02 | Exhaust Brake Ass'Y | 2 |
| JK***48 | Screw | 2 |
| JK***66 | Bolt | 2 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Head : Exhaust Brake (Inner Parts)(#12959-)
| 62***02 | Exhaust Brake Ass'Y | 2 |
| MY***18 | Brake Valve Ass'Y | 1 |
| MY***07 | Cover | 1 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Head : Exhaust Brake And Mounting (Mechanical Governor Spec.)(#10036-12860)
| 01***35 | Bolt, Mounting - Flywheel Housing End | 4 |
| 01***40 | Bolt,(Dust And Dirt Protection) | 8 |
| 01***08 | Nut, Regular Hexagon (M10-1.50) | 4 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Head : Exhaust Brake And Mounting(#12861-)
| 01***25 | Bolt,Joint | 8 |
| 01***35 | Capscrew | 4 |
| 01***40 | Capscrew | 8 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Head : Exhaust Manifold And Turbocharger (1/2) (L.H. Bank)
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 8 |
| 01***25 | Bolt,Joint | 8 |
| 01***95 | Bolt | 24 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Head : Exhaust Manifold And Turbocharger (2/2) (R.H. Bank)
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 8 |
| 01***25 | Bolt,Joint | 8 |
| 01***95 | Bolt | 24 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Head : Rocker Arm And Housing(#10034-10356)
| 01***85 | Bolt (M10-1.50x85) | 2 |
| 01***80 | Bolt (M12-2.00x80) | 12 |
| 01***08 | Nut,R.H. Thread | 24 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Head : Rocker Arm And Housing(#10357-10908)
| 01***85 | Bolt (M10-1.50x85) | 2 |
| 01***80 | Bolt (M12-2.00x80) | 12 |
| 01***08 | Nut,R.H. Thread | 24 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Head : Rocker Arm And Housing(#10909-)
| 01***85 | Bolt (M10-1.50x85) | 2 |
| 01***80 | Bolt (M12-2.00x80) | 12 |
| 01***80 | Bolt (M10-1.50x80) | 34 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Head : Rocker Arm Housing Cover(#10034-10908)
| 01***65 | Bolt,R.H | 36 |
| 62***10 | Cover,Rocker Arm Housing | 12 |
| 62***20 | Washer | 36 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Head : Rocker Arm Housing Cover(#10909-)
| 01***55 | Screw | 36 |
| 62***11 | Cover,Rocker Arm Housing | 12 |
| 62***20 | Gasket, Rocker Lever Housing | 12 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Head : Turbocharger (Inner Parts)(#10034-10356)
| 01***16 | Bolt,(For Slag Handling) | 4 |
| 01***16 | Bolt | 8 |
| 04***08 | Pin, Dowel | 1 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Head : Turbocharger (Inner Parts)(#10357-)
| 01***16 | Bolt | 8 |
| 04***50 | Screw | 2 |
| 65***50 | V-Band | 1 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Head : Turbocharger Cooling Piping (1/2) (Water Inlet Line)(#10036-)
| 07***19 | Gasket,(For Hd325-6) (See Fig.A7010) | 4 |
| 07***21 | Gasket,Turbocharger Water | 3 |
| 07***12 | Plug,(B) | 1 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Head : Turbocharger Cooling Piping (2/2) (Water Outlet Line)(#10036-)
| 01***25 | Bolt (M6-1.00x25) | 2 |
| 01***45 | Bolt, Mount Retainer | 2 |
| 01***50 | Bolt | 2 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Head : Water Piping(#10034-10165)
| 01***20 | Bolt,(Large Capacity Type) (Std) | 4 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 6 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Cylinder Head : Water Piping(#10166-)
| 01***20 | Bolt,(Large Capacity Type) (Std) | 4 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 4 |
Electrical System
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Electrical System : Alternator (50a) (Mechanical Governor Spec.) (Inner Parts)
| 60***21 | Alternator A. (50a),(With Hardening Pulley) | 1 |
| SD***X0 | Coil Assembly | 1 |
| SD***X0 | Washer | 1 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Electrical System : Alternator (75a) (Inner Parts)
| 60***30 | Alternator A. (75a) | 1 |
| SD***X0 | Coil Assembly | 1 |
| SD***X0 | Washer | 1 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Electrical System : Alternator And Mounting (50a And 75a) (Mechanical Governor Spec.)(#10036-)
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***20 | Bolt (M12x1.75x20) | 1 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Electrical System : Alternator Drive (Mechanical Governor Spec.)(#10036-)
| 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 : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Electrical System : Starting Motor (7.5kw) (Inner Parts)(#10034-10908)
| 60***30 | Starting Motor Ass'Y,(7.5kw) (See Fig.A6210-B7a3) | 1 |
| KD***20 | Magnetic Switch Assembly | 1 |
| KD***40 | Spring,Spring | 4 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Electrical System : Starting Motor (7.5kw) (Inner Parts)(#10909-)
| 60***32 | Starting Motor Ass'Y,(7.5kw) | 2 |
| KD***20 | Magnetic Switch Assembly | 1 |
| KD***40 | Spring,Spring | 4 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Electrical System : Starting Motor And Mounting (7.5kw)(#10034-10908)
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***40 | Bolt,(With Center Guard) | 6 |
| 01***20 | Bolt | 2 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Electrical System : Starting Motor And Mounting (7.5kw)(#10909-)
| 01***40 | Bolt (Kit) | 6 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***20 | Bolt | 2 |
Fuel System
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Filter
| 07***12 | Gasket,Mechanical Pump Piping | 1 |
| 60***10 | Cartridge | 2 |
| 60***11 | Cartridge,Fuel Filter | 2 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Injection Pump (Coupling L.H.) (Mechanical Governor Spec.) (Inner Parts)(#10036-)
| DK***00 | Coupling | 1 |
| DK***00 | Bolt | 6 |
| DK***00 | Coupling,Cross | 1 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Injection Pump (Coupling R.H.) (Mechanical Governor Spec.) (Inner Parts)(#10036-)
| DK***00 | Coupling | 1 |
| DK***00 | Bolt | 6 |
| DK***00 | Coupling,Cross | 1 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Injection Pump (Feed Pump L.H.) (Mechanical Governor Spec.) (Inner Parts)(#10036-)
| DK***20 | Bolt, Joint | 1 |
| DK***00 | Valve,Check | 4 |
| DK***20 | Housing | 1 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Injection Pump (Feed Pump R.H.) (Mechanical Governor Spec.) (Inner Parts)(#10036-)
| DK***20 | Bolt, Joint | 1 |
| DK***00 | Valve,Check | 4 |
| DK***20 | Housing | 1 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Injection Pump (Governor L.H.) (1/2) (Mechanical Governor Spec.) (Inner Parts)(#10036-10086)
| DK***00 | Gasket | 1 |
| DK***00 | Gear | 1 |
| DK***00 | Shim? 2.00mm,(High Altitude Spec.) | 0 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Injection Pump (Governor L.H.) (1/2) (Mechanical Governor Spec.) (Inner Parts)(#10087-10295)
| DK***00 | Gasket | 1 |
| DK***00 | Gear | 1 |
| DK***00 | Shim? 2.00mm,(High Altitude Spec.) | 0 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Injection Pump (Governor L.H.) (1/2) (Mechanical Governor Spec.) (Inner Parts)(#10296-)
| DK***00 | Gasket | 1 |
| DK***00 | Gear | 1 |
| DK***00 | Shim? 2.00mm,(High Altitude Spec.) | 0 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Injection Pump (Governor L.H.) (2/2) (Mechanical Governor Spec.) (Inner Parts)(#10036-10086)
| DK***80 | Shim? 0.5mm | 0 |
| DK***00 | Bushing | 1 |
| DK***40 | Gasket,Air Compressor | 4 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Injection Pump (Governor L.H.) (2/2) (Mechanical Governor Spec.) (Inner Parts)(#10087-10295)
| DK***80 | Shim? 0.5mm | 0 |
| DK***00 | Washer,Spring | 1 |
| DK***00 | Bushing | 1 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Injection Pump (Governor L.H.) (2/2) (Mechanical Governor Spec.) (Inner Parts)(#10296-)
| DK***80 | Shim? 0.5mm | 0 |
| DK***00 | Bushing | 1 |
| DK***40 | Gasket,Air Compressor | 4 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Injection Pump (Pump L.H.) (1/2) (Mechanical Governor Spec.) (Inner Parts)(#10036-10086)
| 62***10 | Injection Pump A.,L.H | 1 |
| DK***30 | Bearing,Roller | 1 |
| DK***00 | Bearing,Center | 2 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Injection Pump (Pump L.H.) (1/2) (Mechanical Governor Spec.) (Inner Parts)(#10087-10295)
| 62***11 | Injection Pump A.,L.H | 1 |
| DK***30 | Bearing,Roller | 1 |
| DK***00 | Bearing,Center | 2 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Injection Pump (Pump L.H.) (1/2) (Mechanical Governor Spec.) (Inner Parts)(#10296-)
| 62***12 | Injection Pump A.,L.H | 1 |
| 62***13 | Injection Pump A.,L.H | 1 |
| DK***30 | Bearing,Roller | 1 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Injection Pump (Pump L.H.) (2/2) (Mechanical Governor Spec.) (Inner Parts)(#10036-10086)
| DK***00 | Nut | 12 |
| DK***00 | Cover | 1 |
| DK***00 | Shim? 0.875mm | 0 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Injection Pump (Pump L.H.) (2/2) (Mechanical Governor Spec.) (Inner Parts)(#10087-10295)
| DK***00 | Nut | 12 |
| DK***00 | Shim? 0.875mm | 0 |
| DK***00 | Shim? 0.500mm | 0 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Injection Pump (Pump L.H.) (2/2) (Mechanical Governor Spec.) (Inner Parts)(#10296-)
| DK***00 | Nut | 12 |
| DK***40 | Screw | 2 |
| DK***00 | Shim? 0.875mm | 0 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Injection Pump (Pump R.H.) (1/2) (Mechanical Governor Spec.) (Inner Parts)(#10036-10086)
| 62***20 | Injection Pump A.,R.H | 1 |
| DK***30 | Bearing,Roller | 1 |
| DK***20 | Limiter | 1 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Injection Pump (Pump R.H.) (1/2) (Mechanical Governor Spec.) (Inner Parts)(#10087-10295)
| 62***21 | Injection Pump A.,R.H | 1 |
| DK***30 | Bearing,Roller | 1 |
| DK***20 | Limiter | 1 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Injection Pump (Pump R.H.) (1/2) (Mechanical Governor Spec.) (Inner Parts)(#10296-)
| 62***22 | Injection Pump A.,R.H | 1 |
| DK***30 | Bearing,Roller | 1 |
| DK***20 | Limiter | 1 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Injection Pump (Pump R.H.) (2/2) (Mechanical Governor Spec.) (Inner Parts)(#10036-10086)
| DK***00 | Nut | 12 |
| DK***00 | Rack,Control | 1 |
| DK***00 | Cover | 1 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Injection Pump (Pump R.H.) (2/2) (Mechanical Governor Spec.) (Inner Parts)(#10087-10295)
| DK***00 | Nut | 12 |
| DK***00 | Rack,Control | 1 |
| DK***00 | Cover | 1 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Injection Pump (Pump R.H.) (2/2) (Mechanical Governor Spec.) (Inner Parts)(#10296-)
| DK***00 | Nut | 12 |
| DK***40 | Screw | 2 |
| DK***00 | Shim? 0.875mm | 0 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Injection Pump (Timer L.H.) (Mechanical Governor Spec.) (Inner Parts)(#10036-)
| DK***20 | Cover | 1 |
| DK***00 | Shim? 1.0mm | 0 |
| DK***00 | Spacer | 2 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Injection Pump (Timer R.H.) (Mechanical Governor Spec.) (Inner Parts)(#10036-)
| DK***20 | Cover | 1 |
| DK***00 | Shim? 1.0mm | 0 |
| DK***00 | Spacer | 2 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Injection Pump And Piping (1/2) (L.H. Bank) (Mechanical Governor Spec.)(#10036-)
| 01***25 | Capscrew | 7 |
| 01***35 | Bolt | 4 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 3 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Injection Pump And Piping (2/2) (R.H. Bank) (Mechanical Governor Spec.)(#10036-)
| 01***25 | Capscrew | 5 |
| 01***35 | Bolt | 4 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Injection Pump Drive (Mechanical Governor Spec.)(#10036-10212)
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 1 |
| 01***90 | Bolt (M10-1.50x90) | 2 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 8 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Injection Pump Drive (Mechanical Governor Spec.)(#10213-)
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 1 |
| 01***90 | Bolt (M10-1.50x90) | 2 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 8 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Injection Pump Linkage (1/2) (Mechanical Governor Spec.)(#10036-)
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Injection Pump Linkage (2/2) (Mechanical Governor Spec.)(#10036-)
| 01***05 | Nut (Welded) | 1 |
| 60***30 | Motor Ass'Y,(For Engine Stop) | 1 |
| 69***10 | Joint,Ball | 1 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Nozzle And Spill Pipe
| 01***20 | Capscrew | 12 |
| 01***10 | Nut,(Service Only) | 12 |
| 07***21 | O-Ring,Oil Cooler Pipe | 24 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Piping (Mechanical Governor Spec.)(#10036-11044)
| 01***40 | Bolt,(For Position Fixing) | 4 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 1 |
| 01***40 | Bolt,(Dust And Dirt Protection) | 2 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Fuel System : Fuel Piping (Mechanical Governor Spec.)(#11045-)
| 01***40 | Screw, Hex Socket | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***40 | Bolt (Op) | 2 |
Lubricating Oil System
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Lubricating Oil System : Bypass Filter And Piping(#10411-)
| 07***23 | O-Ring,(For Shipping) (K6) | 2 |
| 07***20 | Hose,(White) | 2 |
| 07***10 | Elbow | 2 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Lubricating Oil System : Lubricating Oil Adapter(#10034-10356)
| 01***12 | Bolt (M8-1.25x12) | 3 |
| 01***65 | Bolt,(For Suction Fan)(4d130-1d) | 1 |
| 01***80 | Bolt, Mount Strainer Flange | 6 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Lubricating Oil System : Lubricating Oil Adapter(#10357-)
| 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 : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Lubricating Oil System : Lubricating Oil Cooler
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***30 | Bolt,(With Body Positioner) | 25 |
| 01***65 | Bolt - Return Line And Suction Linehose Clamps | 2 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Lubricating Oil System : Lubricating Oil Filter And Piping(#10357-11023)
| 01***20 | Bolt,(For Mono Lever Steering) | 3 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 10 |
| 01***30 | Bolt,(With Body Positioner) | 4 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Lubricating Oil System : Lubricating Oil Filter And Piping(#11024-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***20 | Bolt,(For Mono Lever Steering) | 3 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Lubricating Oil System : Lubricating Oil Filter(#10034-10356)
| 60***30 | Cartridge,Oil Filter | 2 |
| 60***70 | Spring, Compression | 1 |
| 61***20 | Cap | 1 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Lubricating Oil System : Lubricating Oil Pump And Suction Pipe(#10034-11023)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***55 | Bolt,(See Service News) | 1 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Lubricating Oil System : Lubricating Oil Pump And Suction Pipe(#11024-)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***55 | Bolt,(See Service News) | 1 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Lubricating Oil System : Turbocharger Lubricating Oil Piping(#10034-10778)
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***16 | Bolt - Starting Motor Ground Cable | 4 |
| 01***08 | Nut, Regular Hexagon (M10-1.50) | 2 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Lubricating Oil System : Turbocharger Lubricating Oil Piping(#10779-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 4 |
Tool And Kit
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Tool And Kit : Gasket Kit
| 02***75 | O-Ring,(See Fig.A1310) | 8 |
| 07***07 | O-Ring - (K7) | 2 |
| 07***12 | O-Ring, Between Valve And Pump | 1 |
Komatsu : Sa12v140-1d(S/N 10034-Up (Mechanical Governor)) : Tool And Kit : Gasket Kit (Mechanical Governor Spec.)(#10036-10908)
| 07***12 | O-Ring, Between Valve And Pump | 1 |
| 07***21 | O-Ring,Water Piping | 2 |
| 07***60 | O-Ring,(For Pc750?800?1800) (A2610) | 1 |
SA12V140-1D(S/N 10034-UP (MECHANICAL GOVERNOR)) serial number reference
The engine serial plate is stamped on the engine block, typically on the left side near the injection pump. Read the prefix (e.g., SA12V140-1D) to identify the model and governor type, then verify the serial number falls within the 10034-UP range for the mechanical governor variant.
| Prefix | Identifies | Notes |
|---|---|---|
| SA12V140-1D | Mechanical Governor | S/N 10034-UP. Identifies the specific engine configuration with mechanical governor. Source: FridayParts application list explicitly ties 'SA12V140-1D S/N 10034-UP (MECHANICAL GOVERNOR)' to the engine family. |
Frequently asked questions
What engine powers the Komatsu 330M (SA12V140-1D) truck?
The Komatsu 330M with the SA12V140-1D engine is powered by a Komatsu SA12V140-1D diesel engine. It is a water-cooled, turbocharged and aftercooled V12 diesel with mechanical jerk-pump fuel injection and a mechanical governor. It has no electronic engine controller, driving through a torque converter and powershift transmission to a mechanical driveline and axle final drives.
What is the operating weight of the Komatsu 330M?
The operating weight is not documented in available public sources for this exact configuration. The 330M is built for large-scale mining and quarry hauling in the roughly 300,000+ lb (136+ metric ton) GVW class implied by the '330' Haulpak model designation. Verify with your dealer or the 330M OMM for the confirmed serial range.
What replaced the Komatsu SA12V140-1D engine?
The SA12V140-1D is part of the SA12V140 series, which saw incremental factory running changes rather than a full model redesign. Later variants in the same family, such as the SA12V140-1C (S/N 10034-UP, Electrical Governor) and the SAA12V140E-3, introduced electronic control and common rail injection systems. The SA12V140-1D itself was succeeded by these electronically governed variants within the broader SA12V140 engine family as emissions and control technologies evolved.
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