Komatsuengine(no series)

Komatsu SA12V140-1S-TA(S/N 10001-UP)

Maintenance schedule, common problems & OEM parts breakdown

The Komatsu SA12V140-1S-TA is a water-cooled, turbocharged, and aftercooled V12 diesel engine used in the Komatsu 330M rigid haul truck, a mechanical-drive vehicle from the Dresser/Komatsu Haulpak lineage. Designed for large-scale mining and quarry hauling, the truck operates in the roughly 300,000+ lb (136+ metric ton) gross vehicle weight class. The engine features a 140 mm bore and 165 mm stroke, displacing 30.5 liters, and drives through a torque converter and powershift transmission to a mechanical driveline and axle final drives. It rides on 27.00-49 tires and was offered as a standard rigid-frame dump-body hauler configured for off-highway mine and construction haul routes, without an electric-drive alternative in this specific SA12V140-1S-TA grouping.

Across its production run, the SA12V140-1S-TA-powered 330M saw incremental factory running changes rather than a full model redesign, reflected in the progression of serial ranges and shop manual codes covering the engine, powertrain, and chassis systems as running improvements were introduced. The machine matters in the used and parts market today because its fully mechanical nature—with no ECM, fault-code diagnostics, or sensor network—makes it straightforward to maintain, diagnose with gauges and visual inspection, and rebuild using conventional mechanical shop practices. That mechanical simplicity, combined with a broad base of engine, powertrain, and axle components shared across the SA12V140-1S-TA build blocks, keeps it active in mining, quarry, and construction fleets well beyond typical service life.

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-TA(S/N 10001-UP) specifications

Engine

ModelSA12V140-1
ConfigurationV-type 12-cylinder, water-cooled, 4-cycle, turbocharged and aftercooled
Displacement30.5 L (30,480 cc)
Bore x Stroke140.0 mm x 165.0 mm
Net Power574–603 kW (770–808 HP) @ 2,000 rpm
Net Torque3,350–4,170 N·m (2,472–3,077 lbf·ft) @ 1,250–1,400 rpm
Fuel Injection SystemBosch PE-P (PS7S) type or Zexel electronic control type (varies by configuration/series)
GovernorZexel electronic control type or Bosch RSUV centrifugal, all-speed type (varies by configuration/series)
Emissions TierNot documented for this exact serial range — verify with your dealer

Weights

Dry Weight3,100–3,300 kg (6,834–7,275 lb)
Operating WeightNot documented for this exact serial range — verify with your dealer
Ground PressureNot published

Dimensions

Overall Length1,715–2,000 mm (5 ft 7.5 in – 6 ft 6.7 in)
Overall Width1,450–1,515 mm (4 ft 9 in – 4 ft 11.6 in)
Overall Height (excluding exhaust pipe)1,475–2,000 mm (4 ft 10 in – 6 ft 6.7 in)
Overall Height (including exhaust pipe)1,592 mm (5 ft 2.7 in)
Transport Length/Width/HeightNot documented for this exact serial range — verify with your dealer
Wheelbase or Track GaugeNot published
Ground ClearanceNot published

Performance

Travel SpeedsNot documented for this exact serial range — verify with your dealer
Class-Relevant PerformanceNot documented for this exact serial range — verify with your dealer
GradeabilityNot published
Flywheel Horsepower574–603 kW (770–808 HP) @ 2,000 rpm (Net)
Minimum Fuel Consumption Ratio205–215 g/kW·h (153–160 g/HP·h) at rated flywheel horsepower
Low Idling Speed700–1,250 rpm (varies by configuration/series)

Service capacities (summary)

Fuel TankNot documented for this exact serial range — verify with your dealer
Hydraulic SystemNot documented for this exact serial range — verify with your dealer
Engine Oil (Refill Capacity)80–103 L (21.1–27.2 US gal)
Cooling SystemNot documented for this exact serial range — verify with your dealer

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

SA12V140-1S-TA(S/N 10001-UP) fluids & capacities

SystemCapacityRecommended fluid
Engine crankcase (with filter)88-103 L (23-27 US gal)Komatsu Genuine EO diesel engine oil. EO10W30-LA or EO15W40-LA for emissions-controlled builds; EO10W30-DH or EO15W40-DH for earlier builds. Grade selected by ambient temperature per the OMM viscosity chart.
Cooling systemNot documented for this exact serial range — verify with your dealer or the 330M OMM for the confirmed serial range.Komatsu Super Coolant (AF-NAC or AF-ACL type), pre-mixed ethylene-glycol coolant with corrosion inhibitors, rated for cold-climate protection to roughly -36 degC (-33 degF). Concentration adjusted by climate per the OMM coolant chart.
Fuel tankNot documented in available sources for this specific engine grouping — varies by configuration/series. Verify against the 330M OMM for the confirmed serial range.Ultra-low-sulfur diesel fuel meeting the SA12V140Z-1 engine's fuel specification; use winter-grade blend in cold climates per the OMM.
Transmission/powertrain compartmentsNot documented in available sources for this specific engine grouping — verify against the 330M OMM for the confirmed serial range.Komatsu Genuine TO powertrain oil. TO10 (SAE 10W, API CD) for cold-climate service, TO30 (SAE 30W, API CD) for standard/warm-climate service.
Final drives (each)Not documented in available sources for this specific engine grouping — varies by configuration/series. Verify against the 330M OMM for the confirmed serial range.Komatsu Genuine AXO axle/final-drive oil (AXO46 or AXO80, SAE 80W, API GL-4), grade selected by ambient temperature per the OMM chart.
Hydraulic system and tankNot documented in available sources for this specific engine grouping — varies by configuration/series. Verify against the 330M OMM for the confirmed serial range.Komatsu Genuine HO hydraulic oil. HO46-HM (ISO VG46) for standard/warm climates, HO56-HE (ISO VG56, SAE 5W-30 equivalent) for cold-climate service.
Grease (chassis, pins, bushings)Spec only - no fill quantity applies.Komatsu Genuine G2-LI multipurpose lithium EP grease, used across pins, bushings and chassis grease points.

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

Komatsu SA12V140-1S-TA(S/N 10001-UP) maintenance schedule

Service intervalTasks
Every 10 h
  • Check engine oil level on the dipstick and top up with Komatsu EO engine oil before start-up
  • Check coolant level in the sight glass and inspect for leaks around the SA12V140-1S-TA block, radiator, and hoses
  • Drain water and sediment from the fuel tank sumps and check the fuel/water separator
  • Walk-around the frame, dump body hoist cylinders, and body pins looking for oil weeping or loose fasteners
  • Check tire condition and inflation on all 27.00-49 positions and inspect rims for cracks
Every 250 h
  • Change engine oil and oil filter using the specified Komatsu EO viscosity grade for ambient conditions
  • Grease all chassis, hoist, and articulation points with G2-LI grease per the lube chart
  • Service the engine air cleaner and check restriction indicator
  • Check powertrain (transmission/torque converter) oil level and top up with TO10 or TO30 as specified
  • Inspect brake cooling oil level and wet-disc brake wear indicators
Every 500 h
  • Replace primary and secondary fuel filters
  • Pull oil samples from engine, powertrain, and axle housings for fluid analysis before servicing
  • Replace hydraulic oil filter elements and inspect the hydraulic tank breather
  • Inspect the driveline U-joints, transmission mounts, and torque converter housing for leaks
  • Check frame rails and dump body hinge structure for cracking, especially near the hoist mounts
Every 1,000 h
  • Change powertrain oil (TO10/TO30) and clean the transmission/torque converter suction screen
  • Check and adjust engine valve lash on the SA12V140-1S-TA (mechanical jerk-pump engine, no electronic control)
  • Inspect the turbocharger and aftercooler for oil seepage, boost leaks, and mounting security
  • Check front and rear axle/differential oil level and condition, top up with AXO46 or AXO80
  • Replace air cleaner primary and secondary elements
Every 2,000 h
  • Change hydraulic oil (HO46-HM or HO56-HE) and clean or replace the hydraulic tank strainer
  • Change front and rear axle/final drive oil and inspect final drive planetary sets for metal in the drain
  • Drain, flush, and refill engine coolant with Super Coolant AF-NAC or AF-ACL per the corrosion-inhibitor schedule
  • Inspect wet-disc brake packs, calipers, and cooling oil circuit for wear beyond service limits
  • Check steering cylinder, drag link, and kingpin wear
Every 6,000 h
  • Evaluate the SA12V140-1S-TA for a top-end or in-frame overhaul based on oil consumption, blow-by, and compression trends
  • Pull the torque converter and 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/rear axle housings, differentials, and final drive gearing as wear dictates
  • Inspect and, if required, rebuild the steering system pump, cylinders, and linkage

Servicing the SA12V140-1S-TA(S/N 10001-UP) beyond the schedule

Predictive Maintenance & Fluid Analysis

With no ECM or fault codes on the SA12V140-1S-TA, condition monitoring runs on oil sampling, coolant testing, and gauge trends. Pull scheduled samples from the engine, torque converter, and axle housings for fluid analysis before servicing. Monitor coolant pH, SCA concentration, and glycol content to prevent corrosion in the 30.5-liter cooling system. Track engine oil wear metals (iron, copper, lead, aluminum) and contaminants (silicon, sodium) to detect early piston, bearing, or head gasket failure. Use Komatsu KOWA laboratory analysis to track viscosity, oxidation, and fuel dilution, ensuring the mechanical jerk-pump fuel system and turbocharger operate within safe thermal and lubrication limits.

Corrective & Common Repairs

The SA12V140-1S-TA relies on mechanical jerk-pump fuel injection with no electronic engine controller. Common repairs involve adjusting engine valve lash, inspecting the injection pump drive and fuel linkage for wear, and replacing primary/secondary fuel filters. Inspect the turbocharger and aftercooler for oil seepage, boost leaks, and mounting security. Check the driveline U-joints, transmission mounts, and torque converter housing for leaks. Inspect frame rails and dump body hinge structure for cracking, especially near the hoist mounts. Torque-check dump body hoist cylinder pins and steering linkage fasteners to maintain structural integrity under heavy loads.

Overhaul & Rebuild Points

Evaluate the SA12V140-1S-TA for a top-end or in-frame overhaul at 6,000 hours based on oil consumption, blow-by, and compression trends. Pull the torque converter and 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/rear axle housings, differentials, and final drive gearing as wear dictates. Inspect and, if required, rebuild the steering system pump, cylinders, and linkage. Have the frame and dump body structure inspected by a qualified welder and repaired before returning to service.

Seasonal & Environment Servicing

Select Komatsu Genuine EO diesel engine oil viscosity based on ambient temperature: EO10W30-LA or EO15W40-LA for emissions-controlled builds, or EO10W30-DH / EO15W40-DH for earlier builds. Use lighter 10W30 in cold climates and 15W40 in warm climates. Adjust coolant concentration by climate per the OMM coolant chart, using Komatsu Super Coolant (AF-NAC or AF-ACL type) rated for cold-climate protection to roughly -36 degC (-33 degF). Use TO10 (SAE 10W) for cold-climate powertrain service and TO30 (SAE 30W) for standard/warm-climate service. Select HO46-HM (ISO VG46) for standard/warm climates and HO56-HE (ISO VG56) for cold-climate hydraulic service.

SA12V140-1S-TA(S/N 10001-UP) common service parts

Part numberPart
07000-02080O-Ring,Hydraulic Oil FilterCheck fitment →
6215-51-5690Grommet,Oil FilterCheck fitment →
600-211-1100Oil Filter Sub ACheck fitment →
600-211-1101Oil Filter Sub ACheck fitment →
600-211-1230Cartridge,Oil FilterCheck fitment →

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SA12V140-1S-TA(S/N 10001-UP) attachments & work tools

Wheel Loader Attachments

The Komatsu WA800-2 and WA900-1 series wheel loaders powered by the SA12V140-1 engine utilize standard front-end bucket configurations for loading and material handling. Factory specifications and service manuals for these models do not list specific bucket capacities or widths for the SA12V140-1 engine variant itself, as these are determined by the loader chassis model rather than the engine. Bucket sizes vary by configuration/series based on the specific WA800 or WA900 model year and application.

Rigid Hauler Configurations

The SA12V140Z-1 engine variant powers the Komatsu 330M rigid hauler, a mechanical-drive truck from the Dresser/Komatsu Haulpak lineage designed for large-scale mining and quarry operations. This machine is built for a gross vehicle weight class of approximately 136+ metric tons (300,000+ lb) and rides on 27.00-49 tires. The SA12V140Z-1 is a water-cooled, turbocharged V12 diesel with mechanical jerk-pump fuel injection and no electronic engine controller.

Generator Set Applications

The SA12V140-1 engine is applied in stationary power generation units including the EG750B-1L and EPSA12V140 generator sets. These configurations utilize the engine's flywheel horsepower ratings, which range from 574 kW (770 HP) to 603 kW (808 HP) at 2,000 rpm depending on the specific net power mode and frequency (50 Hz or 60 Hz). Factory documentation for the 12V140-1 series covers these generator applications in its general specifications.

Engine Mounting and Driveline

The SA12V140-1 engine features a standard flywheel housing and mounting interface compatible with Komatsu powershift transmissions in wheel loaders and rigid haulers. In the 330M hauler application, the engine drives through a torque converter and powershift transmission to a mechanical driveline and axle final drives. Specific mounting bolt patterns and transmission adapter plate specifications are not detailed in the provided engine service manual excerpts.

Hydraulic and Auxiliary Systems

The SA12V140-1 engine does not include integrated hydraulic pumps; auxiliary hydraulic power for attached work tools is supplied by separate machine-mounted pumps. Engine specifications list lubricating oil refill capacities of 88 to 103 liters depending on the specific machine application (e.g., WA800-2 vs. WA900-1). No specific hydraulic kit part numbers or flow rates for tool compatibility are provided in the engine-focused documentation.

All SA12V140-1S-TA(S/N 10001-UP) assemblies by section

Every catalogued assembly group for the Komatsu SA12V140-1S-TA(S/N 10001-UP). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

Engine
Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : After Cooler Water Piping (Cold Terrain Spec.) (For Electrical Governor)(#12378-)
01***20Bolt,(For Mono Lever Steering)4
01***25Bolt,(For Canvas Canopy?Head Guard)9
01***40Bolt (Op)7
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : After Cooler Water Piping (Cold Terrain Spec.)(#12378-)
01***20Bolt,(For Mono Lever Steering)4
01***25Bolt,(For Canvas Canopy?Head Guard)9
01***40Bolt (Op)7
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : After Cooler Water Piping (For Electrical Governor)(#11972-)
01***20Bolt,(For Mono Lever Steering)4
01***25Bolt,(For Canvas Canopy?Head Guard)9
01***40Bolt (Op)7
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : After Cooler Water Piping(#11640-)
01***20Bolt,(For Mono Lever Steering)4
01***25Bolt,(For Canvas Canopy?Head Guard)9
01***40Bolt (Op)7
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Air Cleaner(#12364-)
60***41Pre-Cleaner Assembly2
60***70Nut, Wing1
60***01Element Ass'Y,Outer1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Air Compressor (Front) (Inner Parts)(#10001-13302)
62***01Air Compressor A.,(See Fig.A7010-D7a3)1
DK***40Gasket,Air Compressor1
DK***40Gasket,Air Compressor1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Air Compressor (Front) (Inner Parts)(#13303-)
62***01Air Compressor A.,(See Fig.A7010-D7a3)1
DK***40Gasket,Air Compressor1
DK***40Gasket,Air Compressor1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Air Compressor (Rear) (Inner Parts)(#10001-13302)
62***01Air Compressor A.,(See Fig.A7010-E7a3)1
DK***40Gasket,Air Compressor1
DK***40Gasket,Air Compressor1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Air Compressor (Rear) (Inner Parts)(#13303-)
62***01Air Compressor A.,(See Fig.A7010-E7a3)1
DK***40Gasket,Air Compressor1
DK***40Gasket,Air Compressor1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Air Compressor And Mounting(#10001-13302)
01***35Bolt, Mount Ground Driven Steering Pump2
01***45Bolt, Mounting Cranking Motor2
01***95Capscrew - M123
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Air Compressor And Mounting(#13303-)
01***35Bolt, Mount Ground Driven Steering Pump2
01***45Bolt, Mounting Cranking Motor2
01***95Capscrew - M123
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Air Compressor Gasket Kit(#11755-)
07***00O-Ring (K8)2
07***00O-Ring,(For Dual Water Pump)2
07***19Gasket,(For Hd325-6) (See Fig.A7010)11
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Air Compressor Piping (1/2)(#10001-13302)
01***35Bolt,(For Fix Position)1
01***25Bolt,(For Canvas Canopy?Head Guard)2
01***50Bolt,(Spark Arrester Spec.)1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Air Compressor Piping (1/2)(#13303-)
01***25Bolt,(For Canvas Canopy?Head Guard)2
01***50Bolt,(Spark Arrester Spec.)1
01***55Bolt,(See Service News)2
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Air Compressor Piping (2/2)(#10001-13302)
01***45Screw1
01***50Bolt,For Weight Adjusting Bolt1
01***35Bolt1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Air Compressor Piping (2/2)(#13303-)
01***50Bolt,For Weight Adjusting Bolt1
01***35Bolt1
01***32Washer,(Not Used With Emergency Str.)1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Air Intake Manifold And After Cooler (1/2) (L.H. Bank) (Cold Terrain Spec.) (For Electricalgavernor)(#12378-)
01***00Bolt,(For Front Brake Release)7
01***10Bolt,(With Joy Stick Steering)5
01***60Bolt12
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Air Intake Manifold And After Cooler (1/2) (L.H. Bank) (Cold Terrain Spec.)(#12378-)
01***00Bolt,(For Front Brake Release)7
01***10Bolt,(With Joy Stick Steering)5
01***60Bolt12
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Air Intake Manifold And After Cooler (1/2) (L.H. Bank) (For Electrical Governor)(#11972-)
01***00Bolt,(For Front Brake Release)7
01***10Bolt,(With Joy Stick Steering)5
01***60Bolt12
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Air Intake Manifold And After Cooler (1/2) (L.H. Bank)(#11640-)
01***00Bolt,(For Front Brake Release)7
01***10Bolt,(With Joy Stick Steering)5
01***60Bolt12
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Air Intake Manifold And After Cooler (2/2) (R.H. Bank) (Cold Terrain Spec.) (For Electricalgovernor)(#12378-)
01***00Bolt,(For Front Brake Release)6
01***10Bolt,(With Joy Stick Steering)4
01***20Capscrew2
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Air Intake Manifold And After Cooler (2/2) (R.H. Bank) (Cold Terrain Spec.)(#12378-)
01***00Bolt,(For Front Brake Release)8
01***10Bolt,(With Joy Stick Steering)4
01***60Bolt9
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Air Intake Manifold And After Cooler (2/2) (R.H. Bank) (For Electrical Governor)(#11972-)
01***00Bolt,(For Front Brake Release)6
01***10Bolt,(With Joy Stick Steering)4
01***20Capscrew2
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Air Intake Manifold And After Cooler (2/2) (R.H. Bank)(#11640-)
01***00Bolt,(For Front Brake Release)8
01***10Bolt,(With Joy Stick Steering)4
01***60Bolt9
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Air Vent (Without Corro.Rstr.)(#13460-)
01***25Bolt,(For Canvas Canopy?Head Guard)1
01***10Bolt,(With Joy Stick Steering)1
01***30Capscrew (1)8
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Air Vent(#12104-)
01***25Bolt,(For Canvas Canopy?Head Guard)1
01***10Bolt,(With Joy Stick Steering)1
01***30Capscrew (1)8
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Alternator (75a) (Inner Parts)
60***30Alternator A. (75a)1
SD***X0Coil Assembly1
SD***X0Washer1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Alternator (90a) (Inner Parts)(#12103-)
60***30Alternator A. (90a)1
KD***02Bolt4
KD***02Washer,Spring5
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Alternator Drive (For 90a Alternator)(#12103-)
01***16Bolt - Seat And Tether Belt Mounting6
01***30Bolt,(Not Used When Towing Winch)2
01***90Bolt,For Weight Adjusting Bolt1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Alternator Drive(#10034-)
01***16Bolt - Seat And Tether Belt Mounting6
01***30Bolt,(Not Used When Towing Winch)2
01***90Bolt,For Weight Adjusting Bolt1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Alternator Mounting (75a)
01***25Bolt,(For Canvas Canopy?Head Guard)10
01***30Bolt,(With Body Positioner)6
01***20Bolt,For Weight Adjusting Bolt1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Alternator Mounting (90a)(#12103-)
01***25Bolt,(For Canvas Canopy?Head Guard)6
01***30Bolt,(With Body Positioner)6
01***55Bolt - Mount Cage To Transmission Case1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Alternator Related Parts(#13090-)
Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Breather And Front Seal (Without Air Compressor)(#11859-)
01***25Bolt,(For Canvas Canopy?Head Guard)3
01***30Bolt,(With Body Positioner)1
01***40Bolt (Op)4
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Breather And Front Seal(#11859-)
01***25Bolt,(For Canvas Canopy?Head Guard)3
01***30Bolt,(With Body Positioner)1
01***40Bolt (Op)4
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Bypass Filter Bracket(#12378-)
01***20Bolt,(For Mono Lever Steering)1
01***95Capscrew3
01***25Capscrew3
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Bypass Filter(#12378-)
60***11Filter, By-Pass (Spin-On) (1)2
62***01Filter Ass'Y,Bypass1
62***10Head1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Bypass Oil Piping(#12378-)
01***30Bolt,(With Body Positioner)1
01***85Bolt, Divider Valve Mounting2
07***23O-Ring,Plug1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Camfollower Cover
01***20Bolt,(For Japan Pc200)70
07***12Gasket,(Without Air Compressor Type) (K2)48
62***10Cover12
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Camfollower(#11893-)
04***12Ring, Retaining48
61***20Ball1
62***00Lever, Cam Follower24
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Camshaft(#11893-)
01***20Bolt (M12-1.75x20)4
04***25Key, Plain Woodruff1
62***20Gear, Camshaft (Left Hand)1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Cooling Fan (Noise Suppression Spec.)(#13304-)
Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Corrosion Resistor
01***35Bolt,(F4320-52a0 -5 )2
07***06O-Ring,Corrosion Resistor1
07***14O-Ring,(F4350-63a1a-2 )1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Crank Pulley (Pulley Diameter 182mm)
04***24Pin,Dowel (For No.3 Housing)1
61***20Bolt (M22-1.50x135)6
61***21Bolt6
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Crankshaft
04***28Key, Plain Woodruff1
62***00Main Metal Ass'Y1
62***01Main Metal Ass'Y1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Cylinder Block Gasket Kit(#11640-)
07***12O-Ring, Between Valve And Pump1
07***15O-Ring,(Without Boom Kickout)2
07***21O-Ring,Water Piping2
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Cylinder Block Related Parts(#11859-)
01***25Bolt,(Without Rops Guard? Canopy)26
08***05Switch,Engine Oil Pressure1
62***10Cover, Water Header3
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Cylinder Block(#11859-)
01***25Screw12
01***16Washer,(With Water Separator)12
01***60Washer,(Without Rops Guard? Canopy)14
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Cylinder Head Gasket Kit(#11640-)
02***75O-Ring,(See Fig.A1310)8
07***21O-Ring,Water Piping24
07***25O-Ring,Corrosion Resistor5
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Cylinder Head(#11883-)
01***16Bolt,(For Shipping)12
01***20Bolt (M10-1.75x120)12
04***20Pin,Dowel (Welded)2
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Damper
01***35Bolt, Mount Ground Driven Steering Pump12
01***32Washer,(Not Used With Emergency Str.)12
04***24Pin,Dowel (For No.3 Housing)1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Electrical Wiring (For Electrical Governor) (For Ec Regulation)(#12000-)
01***25Bolt,(Without Rops Guard? Canopy)4
01***16Bolt, Mount Solenoid Valve8
01***16Bolt - Starting Motor Ground Cable4
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Engine Support And Bracket(#11640-)
01***55Bolt, Strut Mounting - To Radiator And Rear Frame12
01***55Capscrew12
01***60Flat Washer - M20 (Hardened)12
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Exhaust Manifold(#11640-)
01***95Bolt48
61***50Stud, Mounting4
62***81Gasket, Exhaust Manifold12
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Flywheel
01***80Bolt10
61***20Washer, Plain (M20)10
62***00Flywheel Ass'Y1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Flywheel Housing (For Mechanical Governor)(#10036-)
01***30Screw3
01***65Bolt,L.H14
01***30Bolt, Tank Mounting3
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Flywheel Housing(#10034-)
01***30Screw3
01***65Bolt,L.H14
01***30Bolt, Tank Mounting3
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Front Cover(#11859-)
01***75Bolt - Tube Mounting7
01***90Bolt,For Weight Adjusting Bolt3
01***30Bolt,For Weight Adjusting Bolt9
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Controller (Forwarded Individually Parts)(#12000-)
Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Controller(#13090-)
Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Filter And Piping (1/2) (L.H.)(#11059-)
01***35Bolt,(For Fix Position)2
01***35Bolt,(F4320-52a0 -5 )4
01***15Bolt, Fan Mounting4
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Filter And Piping (2/2) (R.H.)(#11059-)
01***40Screw, Hex Socket4
01***25Bolt,(For Canvas Canopy?Head Guard)1
01***50Bolt,(Spark Arrester Spec.)2
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Filter And Piping (For Electrical Governor)(#11922-)
01***30Bolt - M8 X 30lg2
01***45Screw1
01***20Bolt,(For Mono Lever Steering)1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Nozzle And Spill Pipe
01***20Capscrew12
01***10Nut,(Service Only)12
07***21O-Ring,Oil Cooler Pipe24
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump (Coupling) (For Electrical Governor) (Inner Parts)(#10034-)
01***25Bolt,(Without Rops Guard? Canopy)6
01***35Bolt, Mount Ground Driven Steering Pump2
65***00Coupling Ass'Y2
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump (Coupling) (L.H.) (Inner Parts)(#11640-)
DK***00Coupling1
DK***00Bolt6
DK***00Coupling,Cross1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump (Coupling) (R.H.) (Inner Parts)(#11640-)
DK***00Coupling1
DK***00Bolt6
DK***00Coupling,Cross1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump (Feed Pump) (L.H.) (Inner Parts)(#11640-)
DK***90Feed Pump Ass'Y1
DK***20Bolt, Joint1
DK***00Valve,Check4
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump (Feed Pump) (R.H.) (Inner Parts)(#11640-)
DK***90Feed Pump Ass'Y1
DK***20Bolt, Joint1
DK***00Valve,Check4
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump (Governor) (L.H.) (1/2) (For Electrical Governor) (Inner Parts)(#10034-)
01***45Bolt4
01***80Bolt6
04***14Pin, Dowel1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump (Governor) (L.H.) (1/2) (Inner Parts)(#11640-)
DK***00Gasket1
DK***00Gear1
DK***00Shim? 2.00mm,(High Altitude Spec.)0
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump (Governor) (L.H.) (2/2) (For Electrical Governor) (Inner Parts)(#10034-)
01***30Bolt (Itl)1
01***80Bolt2
01***08Washer,(For 1 Attachment And Pat)8
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump (Governor) (L.H.) (2/2) (Inner Parts)(#11640-)
DK***80Shim? 0.5mm0
DK***40Gasket,Air Compressor4
DK***40Bolt4
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump (Governor) (R.H.) (1/2) (For Electrical Governor) (Inner Parts)(#10034-)
01***45Bolt4
01***80Bolt6
04***14Pin, Dowel1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump (Governor) (R.H.) (2/2) (For Electrical Governor) (Inner Parts)(#10034-)
01***30Bolt (Itl)1
01***80Bolt2
01***08Washer,(For 1 Attachment And Pat)8
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump (Pump) (L.H.) (1/2) (For Electrical Governor) (Inner Parts)(#10034-)
01***12Bolt - M8 - 1.25 X 122
01***35Bolt4
01***30Bolt (Itl)6
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump (Pump) (L.H.) (1/2) (Inner Parts)(#11640-)
62***50Injection Pump A.,L.H1
DK***30Bearing,Roller1
DK***00Bearing,Center2
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump (Pump) (L.H.) (2/2) (For Electrical Governor) (Inner Parts)(#10034-)
01***08Nut, Regular Hexagon (M10-1.50)12
01***32Washer,(With Auto Emergency Steering)12
65***00Valve Ass'Y6
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump (Pump) (L.H.) (2/2) (Inner Parts)(#11640-)
DK***00Nut12
DK***40Screw2
DK***00Shim? 0.875mm0
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump (Pump) (R.H.) (1/2) (For Electrical Governor) (Inner Parts)(#10034-)
01***12Bolt - M8 - 1.25 X 122
01***35Bolt4
01***30Bolt (Itl)6
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump (Pump) (R.H.) (1/2) (Inner Parts)(#11640-)
62***60Injection Pump Ass'Y,R.H. (See Fig.A4010-H7f3)1
DK***30Bearing,Roller1
DK***20Limiter1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump (Pump) (R.H.) (2/2) (For Electrical Governor) (Inner Parts)(#10034-)
01***08Nut, Regular Hexagon (M10-1.50)12
01***32Washer,(With Auto Emergency Steering)12
65***00Valve Ass'Y6
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump (Pump) (R.H.) (2/2) (Inner Parts)(#11640-)
DK***00Nut12
DK***40Screw2
DK***00Shim? 0.875mm0
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump Bracket (For Electrical Governor)(#12670-)
01***70Bolt - Bracket And Oil Inlet Tubemounting4
01***95Capscrew8
01***32Washer,(With Auto Emergency Steering)12
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump Bracket(#12670-)
01***70Bolt - Bracket And Oil Inlet Tubemounting4
01***95Capscrew8
01***32Washer,(With Auto Emergency Steering)12
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump Drive (With Air Compressor)
01***30Bolt,(Not Used When Towing Winch)8
01***20Bolt, Mount Spool Covers6
01***13Nut, Regular Hexagon (M22-1.25)2
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump Drive(#11042-)
01***30Bolt,(Not Used When Towing Winch)8
01***20Bolt, Mount Spool Covers6
01***13Nut, Regular Hexagon (M22-1.25)2
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump Linkage(#11640-)
01***20Bolt,(For Mono Lever Steering)1
01***03Nut? L.H. Thread,L.H. Thread1
01***05Nut (Welded)1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump Lubricating (1/2) (L.H. Bank)
07***12Gasket,(Without Air Compressor Type) (K1)2
07***14Screw, Banjo Connector (M10)1
61***20Nipple1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump Lubricating (1/2) (L.H. Bank) (For Electrical Governor)(#10034-)
07***12Gasket,(Without Air Compressor Type) (K2)4
07***12Gasket,(Without Air Compressor Type) (K1)2
07***10Screw, Banjo Connector (M10-1.25x20)1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump Lubricating (2/2) (R.H. Bank)
07***12Gasket,(Without Air Compressor Type) (K2)2
07***12Gasket,(Without Air Compressor Type) (K1)2
07***10Screw, Banjo Connector (M10-1.25x20)1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump Lubricating (2/2) (R.H. Bank) (For Electrical Governor)(#10034-)
07***12Gasket,(Without Air Compressor Type) (K2)2
07***12Gasket,(Without Air Compressor Type) (K1)2
07***10Screw, Banjo Connector (M10-1.25x20)1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump Mounting (For Electrical Governor)(#10034-)
01***00Bolt8
01***32Washer, (Without Emergency Steering)8
07***08Plug,(Without Lock-Up), Plug2
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump Mounting(#11640-)
01***90Bolt,(For No?1 And No?3 Housing)8
01***32Washer, (Without Emergency Steering)8
07***12Gasket,(Without Air Compressor Type) (K2)2
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump Piping (1/2) (L.H. Bank) (For Electrical Governor)(#10034-)
01***30Screw7
01***35Bolt6
01***20Bolt,(For Mono Lever Steering)2
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump Piping (1/2) (L.H. Bank)(#11062-)
01***25Capscrew7
01***30Screw7
01***35Bolt4
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump Piping (2/2) (R.H. Bank) (For Electrical Governor)(#10034-)
01***30Screw7
01***35Bolt4
01***20Bolt,(For Mono Lever Steering)2
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Injection Pump Piping (2/2) (R.H. Bank)(#11062-)
01***25Capscrew5
01***30Screw5
01***35Bolt4
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Piping (L.H. Bank) (For Electrical Governor)(#11922-)
01***25Bolt,(Rear Attachment Less)2
01***20Bolt2
01***25Screw2
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Piping (R.H. Bank) (For Electrical Governor)(#11922-)
01***20Bolt, Wiring Harness Mounting Bracket2
01***95Bolt1
01***20Bolt2
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Return (L.H. Bank) (For Electrical Governor)(#12000-)
Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Return (L.H. Bank)(#11640-)
01***25Bolt1
07***12Gasket,Mechanical Pump Piping3
07***08Plug,(Without Oil Pressure Switch)2
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Return (R.H. Bank) (For Electrical Governor)(#12000-)
01***25Bolt,(Rear Attachment Less)1
01***20Bolt,(For Mono Lever Steering)1
01***23Washer, Wiring Harness Mounting Bracket1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Fuel Return (R.H. Bank)(#11640-)
01***25Bolt1
07***12Gasket,Mechanical Pump Piping3
07***08Plug,(Without Oil Pressure Switch)2
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Gear Case (Without Air Compressor)(#11859-)
01***20Bolt,(Without Rops Guard? Canopy)4
01***30Bolt,(Not Used When Towing Winch)13
07***08Plug,(Without Lock-Up), Plug4
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Gear Case(#11859-)
01***30Bolt,(Not Used When Towing Winch)13
07***08Plug,(Without Lock-Up), Plug4
07***16Plug, Expansion9
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Head Cover(#11859-)
01***55Screw36
62***11Cover,Rocker Arm Housing12
62***20Gasket, Rocker Lever Housing12
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Heat Shield (For Wa800.900? D475a And Hd785.985)
01***35Capscrew8
01***40Capscrew8
01***32Washer,(With Auto Emergency Steering)8
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Heater Switch (1/2) (L.H. Bank)
01***12Bolt,(With Speedometer)2
01***16Bolt - Starting Motor Ground Cable5
01***30Bolt - Lower Oil Cooler Outlet Tubemounting4
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Heater Switch (2/2) (R.H. Bank)
01***12Bolt,(With Speedometer)2
01***16Bolt - Starting Motor Ground Cable5
01***30Bolt - Lower Oil Cooler Outlet Tubemounting4
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Idler Gear(#10909-)
01***40Bolt (Op)12
01***80Bolt,For Weight Adjusting Bolt2
01***10Bolt,For Weight Adjusting Bolt4
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Muffler Piping(#11832-)
01***45Capscrew10
01***50Bolt12
62***80Connector2
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Muffler(#11832-)
01***30Bolt,(With Body Positioner)5
01***35Bolt,(F4320-52a0 -5 )4
01***45Bolt,(With Water Separator Type)7
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Name Plate And Caution (Japanese-English)
04***60Screw, Serial Number Plate4
09***12Plate? Name,(Limited Supply)1
60***40Plate? Name,(Limited Supply)1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Nozzle Holder (Inner Parts)(#10787-)
62***12Holder Ass'Y,(See Fig.A4210-B7a4)12
DK***00Shim? 0.725mm0
DK***00Shim? 0.525mm0
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Oil Adapter
01***12Bolt - M8 - 1.25 X 123
01***65Bolt - Return Line And Suction Linehose Clamps1
01***80Bolt,(With Corrosion Resistor)6
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Oil Adapter (Cold Terrain Spec.)(#12378-)
01***12Bolt - M8 - 1.25 X 123
01***65Bolt - Return Line And Suction Linehose Clamps1
01***80Bolt,(With Corrosion Resistor)6
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Oil Cooler (With Block Heater)(#12319-)
01***30Bolt,(With Body Positioner)24
01***65Bolt - Return Line And Suction Linehose Clamps2
01***16Bolt - Starting Motor Ground Cable1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Oil Cooler Mounting(#11893-)
01***75Bolt (M10-1.50x75)4
07***40O-Ring,Cooling Valve1
07***40O-Ring,(For Hd325-6?Hm400-1) (A3110)1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Oil Cooler(#11893-)
01***30Bolt,(With Body Positioner)24
01***65Bolt - Return Line And Suction Linehose Clamps2
07***16O-Ring (K2)8
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Oil Filler
01***20Bolt,(For Mono Lever Steering)4
07***38O-Ring,(For Slag Handling)1
07***38Seal, O-Ring1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Oil Filter
01***20Bolt,(For Mono Lever Steering)3
01***25Bolt,(For Canvas Canopy?Head Guard)10
01***30Bolt,(With Body Positioner)7
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Oil Filter (Cold Terrain Spec.)(#12378-)
01***25Bolt,(For Canvas Canopy?Head Guard)6
01***30Bolt,(With Body Positioner)7
01***30Bolt - Lower Oil Cooler Outlet Tubemounting13
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Oil Level Gauge (Cold Terrain Spec.)(#12378-)
01***20Bolt,(For Mono Lever Steering)1
01***32Washer,(With Auto Emergency Steering)1
04***10Clip1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Oil Level Gauge(#11972-)
01***20Bolt,(For Mono Lever Steering)1
01***32Washer,(With Auto Emergency Steering)1
04***10Clip1
See all parts with full part numbers in Heavy Parts AI →
Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Oil Pan And Suction Tube (Cold Terrain Spec.)(#12378-)
01***20Bolt,(For Mono Lever Steering)2
01***25Bolt,(For Canvas Canopy?Head Guard)27
01***30Bolt,(With Body Positioner)1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Oil Pan And Suction Tube(#11972-)
01***20Bolt,(For Mono Lever Steering)2
01***25Bolt,(For Canvas Canopy?Head Guard)24
01***30Bolt,(With Body Positioner)1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Oil Pump(#10909-)
01***30Bolt,(With Body Positioner)2
01***55Bolt,(See Service News)1
01***20Bolt,(Forwarded Individually Parts)5
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Piston(#10909-)
02***13Pin, Dowel2
04***20Ring, Retaining24
62***33Piston Ring Ass'Y,Per Cylinder12
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Rocker Arm And Housing(#11893-)
01***85Bolt (M10-1.50x85)2
01***80Bolt (M12-2.00x80)12
01***80Bolt (M10-1.50x80)34
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Safety Guard (Injection Pump Drive) (For Electrical Governor)(#12000-)
01***20Bolt,(For Mono Lever Steering)6
01***25Bolt,(For Canvas Canopy?Head Guard)1
01***75Bolt (M10-1.50x75)2
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Safety Guard (Injection Pump Drive)(#11640-)
01***20Bolt,(For Mono Lever Steering)14
01***25Bolt,(For Canvas Canopy?Head Guard)1
01***40Bolt (Op)2
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Shield Plate(#11859-)
62***10Plate,Heat Shield2
62***11Plate,Heat Shield2
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Starting Motor (7.5kw) (Inner Parts)(#12609-13249)
60***32Starting Motor Ass'Y,(7.5kw)2
KD***20Magnetic Switch Assembly1
KD***40Spring,Spring4
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Starting Motor (7.5kw) (Inner Parts)(#13250-)
60***33Starting Motor Ass'Y,(7.5kw)2
KD***62Screw1
KD***02Washer, Spring4
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Starting Motor Mounting (7.5kw)(#11640-)
01***40Bolt,(With Center Guard)6
01***40Bolt (Kit)6
01***20Bolt2
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Stop Motor And Linkage (For Mechanical Governor)(#12378-)
01***05Nut (Welded)1
60***31Motor,Stop1
69***10Joint,Ball1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Thermostat Housing (With Air Comppressor)(#11922-)
01***20Bolt,(For Mono Lever Steering)2
01***25Bolt,(For Canvas Canopy?Head Guard)2
01***10Bolt,(With Joy Stick Steering)2
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Thermostat Housing(#11640-)
01***20Bolt,(For Mono Lever Steering)2
01***30Bolt,(With Body Positioner)2
01***10Bolt,(With Joy Stick Steering)2
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Turbocharger (Ktr110g-F45a) (Inner Parts)(#11526-)
01***16Bolt4
01***16Bolt8
01***16Bolt8
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Turbocharger And Lubricating Oil Piping(#11526-)
01***25Bolt,(For Canvas Canopy?Head Guard)4
01***30Bolt,(With Body Positioner)4
01***35Bolt,(F4320-52a0 -5 )4
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Turbocharger Blind Cover(#11526-)
01***25Bolt,Joint16
61***30Plate8
61***41Gasket,(Fig.A1530)8
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Water Pump (Without Corro.Rstr.)(#13460-)
01***20Bolt,(For Mono Lever Steering)1
01***25Bolt,(For Canvas Canopy?Head Guard)3
01***30Bolt,(With Body Positioner)3
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Water Pump Gasket Kit(#11640-)
07***60O-Ring,(For Pc750?800?1800) (A2610)1
07***80O-Ring,Hydraulic Oil Filter1
07***90O-Ring,(Dk029369-0020) (K2)1
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Komatsu : Sa12v140-1s-Ta(S/N 10001-Up) : Engine : Water Pump(#12104-)
01***20Bolt,(For Mono Lever Steering)1
01***30Bolt,(Not Used When Towing Winch)2
01***10Bolt,(With Joy Stick Steering)3
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Frequently asked questions

What engine does the Komatsu SA12V140-1S-TA use?

The Komatsu SA12V140-1S-TA is a water-cooled, turbocharged, and aftercooled V12 diesel engine with a 140 mm bore and 165 mm stroke, displacing 30.5 liters. It features mechanical jerk-pump fuel injection and no electronic engine controller.

What is the operating weight of the Komatsu 330M truck equipped with this engine?

Operating weight is not documented in available public sources for this exact configuration. It is built for the roughly 300,000+ lb (136+ metric ton) gross vehicle weight 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 SA12V140-1S-TA engine?

Not documented for this exact serial range — verify with your dealer. The SA12V140-1S-TA is part of the SA12V140-1 series, which saw incremental factory running changes rather than a full model redesign. Later same-family variants like the SAA12V140E-3 introduced electronically controlled common rail fuel injection.

What SA12V140-1S-TA(S/N 10001-UP) owners discuss

What are the core specifications and configuration of the Komatsu SA12V140-1S-TA(S/N 10001-UP) engine?
The SA12V140-1S-TA is a 12-cylinder, water-cooled, turbocharged, and aftercooled V-type diesel engine. It features a bore of 140 mm (5.51 in) and a stroke of 165 mm (6.50 in), resulting in a total displacement of 30.5 L (1,861 cu in). The engine utilizes a mechanical jerk-pump fuel injection system with no electronic engine controller. It is designed for applications in heavy mining and construction equipment, such as rigid haul trucks and large excavators, operating in high-load environments.
How does the mechanical fuel system of the SA12V140-1S-TA affect maintenance and diagnostics compared to modern electronic engines?
The SA12V140-1S-TA lacks an ECM, fault-code diagnostics, or a sensor network. Maintenance and diagnosis rely entirely on mechanical adjustments, gauge readings, and visual inspection. Operators must manually check and adjust engine valve lash every 1,000 hours and inspect the injection pump drive and fuel linkage for wear. Condition monitoring is performed through scheduled oil sampling, coolant testing, and tracking gauge trends rather than reading digital fault codes. This mechanical simplicity allows for straightforward rebuilds using conventional shop practices and ensures parts interchangeability across the series.
What are the recommended fluid specifications and capacities for the SA12V140-1S-TA engine and associated systems?
Engine crankcase oil capacity varies by configuration, ranging from 88 to 132 L (23 to 35 US gal) total, with a drain-and-refill volume of 80 to 120 L (21 to 32 US gal). Komatsu Genuine EO diesel engine oil is required, with viscosity grades EO10W30-LA or EO15W40-LA for emissions-controlled builds, or EO10W30-DH and EO15W40-DH for earlier builds, selected based on ambient temperature. The cooling system requires Komatsu Super Coolant (AF-NAC or AF-ACL type) pre-mixed ethylene-glycol coolant. Powertrain oil is Komatsu Genuine TO (TO10 for cold climates, TO30 for warm climates), and final drives use Komatsu Genuine AXO (AXO46 or AXO80). Hydraulic systems use Komatsu Genuine HO (HO46-HM for warm climates, HO56-HE for cold climates).
What are the typical wear patterns and undercarriage considerations for machines powered by this engine series?
Machines equipped with the SA12V140-1S-TA, such as the Komatsu 330M rigid haul truck, typically operate on 27.00-49 tires in mining and quarry environments. Undercarriage and frame wear patterns include stress cracking near dump body hinge structures and hoist mounts, which should be inspected every 500 hours. Final drive planetary sets and wet-disc brake packs require inspection every 2,000 hours for metal debris in drain oil and wear beyond service limits. Track tension and roller condition must be monitored regularly to prevent uneven wear, as mechanical resistance differences can indicate hydraulic or final-drive issues rather than just track problems.
What are the common powertrain and hydraulic behaviors associated with this engine series?
The engine drives through a torque converter and powershift transmission to a mechanical driveline. A common diagnostic pattern is distinguishing between engine power loss and hydraulic load: if engine RPM drops heavily when hydraulics are used, the hydraulic system may be placing excessive load on the engine or the engine may be unable to produce expected power. If engine speed remains normal but movements become weak, the hydraulic system is the primary suspect. Hydraulic weakness that appears only when hot often indicates internal leakage in pumps, valves, or cylinders that becomes noticeable as oil viscosity decreases. Shared hydraulic supply issues cause all functions to slow simultaneously, while single-function slowness points to specific cylinders, control valves, or pilot inputs.
What are the key maintenance intervals and tasks for the SA12V140-1S-TA engine?
Daily checks include engine oil level, coolant level, fuel/water separator drainage, and tire condition. Every 250 hours, change engine oil and filters, grease chassis points, and check powertrain oil levels. Every 500 hours, replace primary and secondary fuel filters, pull fluid samples, and replace hydraulic oil filters. Every 1,000 hours, change powertrain oil, clean the transmission suction screen, check engine valve lash, inspect the turbocharger and aftercooler, and replace air cleaner elements. Every 2,000 hours, change hydraulic oil, change axle/final drive oil, drain and refill engine coolant, and inspect wet-disc brake packs. Every 6,000 hours, evaluate the engine for overhaul based on oil consumption and blow-by, and inspect the torque converter and transmission.
What should be checked when buying a used machine with the SA12V140-1S-TA(S/N 10001-UP) engine?
Verify the exact serial-prefix specification sheet to confirm the installed fuel injection type and emissions configuration. Inspect the frame and dump body structure for cracking, especially near hoist mounts. Check the condition of the 27.00-49 tires and rims for cracks. Test the engine under load to ensure it does not lose power when hydraulics are engaged. Verify the history of valve lash adjustments and fuel system maintenance. Check for oil weeping or loose fasteners on the frame, dump body hoist cylinders, and body pins. Ensure the cooling package (radiator, hydraulic oil cooler, charge-air cooler) is clean and free of packed debris between heat exchangers. Have your dealer verify the final engine overhaul status and torque converter condition.

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

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