Komatsuengine(no series)
Komatsu SA12V170-1D(S/N 10024-UP)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu SA12V170-1D is a 12-cylinder, V-configuration diesel engine designed for heavy-duty mining and construction applications. It powers the D575A-3 Super Dozer and the HD1200M-1 rigid dump truck. Production for this specific serial range (10024-UP) spans the late 1990s into the early 2000s. The engine features a 170mm bore and stroke, delivering flywheel horsepower ranging from 858 kW (1,150 HP) at 1,800 rpm for the dozer variant to 878 kW (1,177 HP) at 2,100 rpm for the dump truck variant. It is a mechanical governor engine, distinct from later electronic variants.
The SA12V170-1D was succeeded by the SA12V170E-2 series, which introduced electronic controls and updated emissions compliance. The SA12V170-1D remains critical in the used parts market because it serves as the heart of the D575A-3 and HD1200M-1, two of Komatsu's most durable heavy earthmoving machines. Its mechanical Bosch fuel pump and centrifugal governor make it simpler to service than modern electronic engines, driving high demand for rebuild kits, turbochargers, and cylinder heads in the aftermarket.
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 SA12V170-1D(S/N 10024-UP) specifications
Engine
| Model | SA12V170-1D |
| Displacement | 46.3 liters |
| Cylinders | 12 (V configuration) |
| Bore | 170.0 mm (6.69 in) |
| Stroke | 170.0 mm (6.69 in) |
| Gross Power | 858 kW (1,150 HP) @ 1,800 rpm (for D575A-2SD application) |
| Gross Power | 878 kW (1,177 HP) @ 2,100 rpm (for HD1200M-1 application) |
| Maximum Torque | 5,658 Nm (577 kgm) @ 1,300 rpm (for D575A-2SD application) |
| Maximum Torque | 4,638 Nm (473 kgm) @ 1,400 rpm (for HD1200M-1 application) |
| Governor Type | BOSCH RSUV centrifugal, allspeed type |
| Fuel Pump Type | BOSCH PE-ZWX type |
| Turbocharger | KOMATSU KTR150 x 2 (With after cooler) |
| Emissions Tier | Not documented for this exact serial range — verify with your dealer |
Weights
| Dry Weight (Engine) | 5,600 kg (12,346 lb) |
| Dry Weight (Engine) | 5,450 kg (12,015 lb) |
Dimensions
| Engine Length | 1,890 mm (74.4 in) |
| Engine Width | 1,240 mm (48.8 in) |
| Engine Height | 2,093 mm (82.4 in) |
Performance
| Low Idle Speed | 900 - 1,000 rpm (60Hz) |
| Low Idle Speed | 700 - 900 rpm (50Hz) |
| Fuel Consumption Ratio | 216 g/kW·h (161 g/HP·h) at rated load |
Service capacities (summary)
| Lubricating Oil Refill Capacity | Not specified in source text |
| Coolant Capacity | Not specified in source text |
| Fuel Tank Capacity | Not specified in source text |
| Hydraulic System Capacity | Not specified in source text |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
Komatsu SA12V170-1D(S/N 10024-UP) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
Servicing the SA12V170-1D(S/N 10024-UP) beyond the schedule
Predictive Maintenance & Fluid Analysis
Use Komatsu Oil Wear Analysis (KOWA) at every 500-hour interval to monitor engine wear metals and hydraulic contamination. Check coolant SCA concentration at 500 hours to prevent cavitation in the SA12V170-1D cylinder liners. Monitor DEF levels daily on Tier 4 variants, though this mechanical series typically lacks SCR systems. Track fuel consumption ratios against the factory curve (216 g/kW at rated load) to detect injector degradation early. Inspect the KTR130 or KTR150 turbochargers for shaft play and oil leaks during every 250-hour service.
Corrective & Common Repairs
The SA12V170-1D uses a Bosch PE-ZWX fuel pump and RSUV centrifugal governor. Common failures involve governor linkage wear and fuel pump plunger leakage. Replace the KTR130 or KTR150 turbocharger if exhaust smoke turns blue or black, indicating boost loss. Inspect the Zexel reciprocating single-cylinder injectors for coking and spill pipe leaks. Check the aftercooler cores for external debris blockage, which causes overheating. Replace the oil cooler core if cross-contamination between oil and coolant is detected.
Overhaul & Rebuild Points
Overhaul the SA12V170-1D when compression drops below specification or oil consumption exceeds limits. Use the 0.25 mm and 0.50 mm undersize piston kits for cylinder liner wear. The engine dry weight is approximately 5,600 kg. Replace the main bearings and connecting rod bearings if oil pressure drops significantly. Inspect the crankshaft for journal wear and taper. Rebuild the fuel pump and governor assembly if idle speed becomes unstable or high-speed limiting fails.
Seasonal & Environment Servicing
In cold climates, ensure the 24V starting system (75A alternator) is robust enough for high-viscosity oil. Use Komatsu Super Coolant AF-NAC to prevent freezing and boiling. In dusty environments, clean the KTR turbocharger fins frequently and check the air filter restriction indicator daily. Drain the fuel water separator more often in humid conditions to prevent microbial growth. Inspect the battery terminals for corrosion, as the 24V system relies on four 12V 200Ah batteries in series-parallel configuration.
SA12V170-1D(S/N 10024-UP) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 600-311-7111 | Cartridge,Fuel Filter | Fuel system service | Check fitment → |
| 600-311-7200 | Fuel Filter Ass'Y | Fuel system service | Check fitment → |
| 600-311-7201 | Fuel Filter Ass'Y | Fuel system service | Check fitment → |
| 09637-01163 | Plate? Instruction,Air Cleaner (Double Element) | Air intake service | Check fitment → |
| 6164-61-5790 | Gasket,Oil Filter | Lubrication service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
SA12V170-1D(S/N 10024-UP) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| CA115 | Engine crankshaft speed sensor failure | Faulty speed sensor, broken wiring harness, or corroded connector at the sensor pin. | Inspect the sensor wiring and connector for damage or corrosion. Test sensor voltage at the pin connector. Replace the speed sensor if the circuit is intact but the signal is absent. |
| CA111 | Internal engine controller fault | Critical internal failure of the Electronic Control Module (ECM). | Verify power and ground connections to the ECM. If connections are secure, replace or reprogram the ECM. |
| CA451 | Common rail pressure sensor feedback value too high | Malfunctioning rail pressure sensor, actual overpressure condition, or sensor wiring short. | Diagnose the fuel rail pressure sensor and its wiring. Check for physical blockages in fuel lines that could cause overpressure. |
| CA234 | Engine overspeed | Throttle calibration error, excessive engine load cycle, or operator misuse. | Verify throttle calibration and inspect the engine load cycle. Check for mechanical binding in the governor or fuel rack. |
| CA441 | Battery voltage too low | Weak battery, failing alternator, or loose/corroded battery terminals. | Check battery health and charge level. Inspect the alternator output and voltage regulator. Tighten all battery connections. |
| CA122 | Intake air pressure sensor feedback voltage too high | Faulty intake pressure sensor, shorted wiring, or restricted airflow causing abnormal pressure readings. | Verify the intake pressure sensor operation and wiring integrity. Check for airflow restrictions in the intake system. |
| CA153 | Intake air temperature sensor feedback voltage too high | Faulty Intake Air Temperature (IAT) sensor or open/short circuit in the sensor harness. | Test the IAT sensor resistance and voltage. Replace the sensor if it is out of specification or check the harness for breaks. |
| CA271 | IMV/PCV1 short circuit | Short circuit in the Idle Management Valve (IMV) or Pressure Control Valve (PCV) solenoid circuit. | Inspect the IMV/PCV solenoid wiring for chafing or shorts. Replace the solenoid valve if the circuit is intact but the fault persists. |
| E10 | Engine controller power failure | Loss of power to the engine ECM, blown fuse, or open ground wire. | Inspect ECM power connections, fuses, and ground wires. Restore power to the controller if the circuit is open. |
| AA10NX | Air cleaner clogging | Clogged air filter element or restricted intake path. | Replace the air filter element. Inspect the intake ducting for obstructions. |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
SA12V170-1D(S/N 10024-UP) attachments & work tools
Dozer Blade Configurations
The SA12V170-1D engine (S/N 10024-UP) is specified for the D575A-3 Super Dozer. Factory configurations include standard and ripper-mounted blade setups for heavy earthmoving.
Ripper Attachments
The D575A-3 dozer platform supports rear-mounted ripper configurations. The engine's high torque output (5,658 Nm at 1,300 rpm) is utilized for heavy ripping operations.
Engine Mounting & Coupling
The SA12V170-1D is a stationary or chassis-mounted power unit. It utilizes a flywheel housing interface for direct coupling to the D575A-3 transmission and final drives, rather than a quick-attach work tool coupler.
Hydraulic System Requirements
The engine drives the main hydraulic pumps for the dozer's blade and ripper functions. Komatsu TO hydraulic oil and Komatsu Super Coolant AF-NAC are the specified fluids for the power train and cooling systems.
Guarding & Protection Options
Factory options for the D575A-3 include heavy-duty guarding for the undercarriage and engine compartment to protect against debris during mining and large-scale site development.
All SA12V170-1D(S/N 10024-UP) assemblies by section
Every catalogued assembly group for the Komatsu SA12V170-1D(S/N 10024-UP). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Engine
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : After Cooler Water Connection(#10024-10192)
| 01***50 | Bolt,(Spark Arrester Spec.) | 2 |
| 01***55 | Bolt,(See Service News) | 4 |
| 01***65 | Bolt - Return Line And Suction Linehose Clamps | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : After Cooler Water Connection(#10193-)
| 01***50 | Bolt,(Spark Arrester Spec.) | 2 |
| 01***55 | Bolt,(See Service News) | 4 |
| 01***65 | Bolt - Return Line And Suction Linehose Clamps | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : After Cooler Water Piping(#10024-10192)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 4 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 4 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : After Cooler Water Piping(#10193-)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 4 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 4 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : After Cooler(#10024-10096)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 8 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 20 |
| 01***40 | Bolt (Op) | 32 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : After Cooler(#10097-10192)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 8 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 38 |
| 01***40 | Bolt (Op) | 32 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : After Cooler(#10193-)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 8 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 38 |
| 01***40 | Bolt (Op) | 32 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Air Cleaner And Muffler Support(#10024-10180)
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 8 |
| 01***40 | Bolt,For Weight Adjusting Bolt | 14 |
| 01***45 | Bolt, Mounting Cranking Motor | 6 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Air Cleaner And Muffler Support(#10181-)
| 01***40 | Bolt,For Weight Adjusting Bolt | 14 |
| 01***55 | Bolt | 12 |
| 01***10 | Nut,(Without Air Conditioner) | 16 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Air Cleaner Connection(#10024-10180)
| 01***22 | Capscrew | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 29 |
| 01***30 | Bolt,(With Body Positioner) | 6 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Air Cleaner Connection(#10181-)
| 01***22 | Capscrew | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 29 |
| 01***40 | Bolt (Op) | 18 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Air Cleaner(#10024-10180)
| 01***30 | Bolt,(For Center Guard) | 10 |
| 01***75 | Bolt | 2 |
| 01***16 | Bolt - Seat And Tether Belt Mounting | 8 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Air Cleaner(#10181-)
| 01***30 | Bolt,(For Center Guard) | 10 |
| 01***75 | Bolt | 2 |
| 01***16 | Bolt - Seat And Tether Belt Mounting | 8 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Air Intake Manifold(#10024-10096)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 48 |
| 01***30 | Bolt,(With Body Positioner) | 18 |
| 01***40 | Bolt (Op) | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Air Intake Manifold(#10097-10192)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 48 |
| 01***40 | Bolt (Op) | 2 |
| 01***85 | Bolt, Divider Valve Mounting | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Air Intake Manifold(#10193-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 48 |
| 01***40 | Bolt (Op) | 2 |
| 01***85 | Bolt, Divider Valve Mounting | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Air Vent
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***30 | Bolt,(With Body Positioner) | 3 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Alternator (75a) (Chassis Mount)(#10024-10180)
| 01***38 | Washer,Radio Controlled Slag Handling | 1 |
| 01***23 | Washer,(A)(W/After Cooler)(S6d155-4b) | 2 |
| 02***12 | Nut,(A)(W/After Cooler)(S6d155-4b) | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Alternator (75a) (Chassis Mount)(#10181-)
| 01***38 | Washer,Radio Controlled Slag Handling | 1 |
| 01***23 | Washer,(A)(W/After Cooler)(S6d155-4b) | 2 |
| 02***12 | Nut,(A)(W/After Cooler)(S6d155-4b) | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Alternator (75a) (Inner Parts)(#10181-)
| 60***10 | Alternator A. (75a) | 1 |
| SD***X0 | Coil Assembly | 1 |
| SD***X0 | Washer | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Alternator (Inner Parts) (75a)(#10024-10180)
| 60***10 | Alternator A. (75a) | 1 |
| SD***X0 | Coil Assembly | 1 |
| SD***X0 | Washer | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Automatic Timer (Inner Parts)
| 61***40 | Timer Ass'Y | 2 |
| 61***30 | Timer Ass'Y | 2 |
| 61***31 | Timer Ass'Y | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Breather And Piping(#10024-10096)
| 01***20 | Bolt,(For Mono Lever Steering) | 8 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 12 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Breather And Piping(#10097-)
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 16 |
| 01***00 | Bolt,(For Front Brake Release) | 4 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Bypass Filter (1/2)(#10165-10180)
| 01***45 | Bolt, Bracket Mounting | 8 |
| 01***50 | Bolt,(See Fig.A4010-C3w6) | 8 |
| 01***08 | Nut,See Fig. K4010-04a0 | 16 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Bypass Filter (2/2)(#10165-10180)
| 01***30 | Bolt - M8 X 30lg | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Bypass Filter Piping(#10181-10192)
| 01***30 | Bolt - M8 X 30lg | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Bypass Filter Piping(#10193-)
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Bypass Filter(#10024-10164)
| 01***30 | Bolt,(With Body Positioner) | 14 |
| 01***40 | Bolt (Op) | 12 |
| 01***45 | Bolt, Bracket Mounting | 8 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Bypass Filter(#10181-)
| 01***45 | Bolt, Bracket Mounting | 8 |
| 01***50 | Bolt,(See Fig.A4010-C3w6) | 8 |
| 01***08 | Nut,See Fig. K4010-04a0 | 16 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Camshaft And Camfollower(#10024-10171)
| 01***40 | Bolt,For Weight Adjusting Bolt | 24 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 24 |
| 04***38 | Key | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Camshaft And Camfollower(#10172-)
| 01***40 | Bolt,For Weight Adjusting Bolt | 24 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 24 |
| 04***38 | Key | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Cooling Fan(#10024-10166)
| 60***80 | Fan,Cooling | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Cooling Fan(#10167-10180)
| 60***80 | Fan,Cooling | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Cooling Fan(#10181-)
| 60***80 | Fan,Cooling | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Corrosion Resistor (1/2)(#10159-10180)
| 07***06 | O-Ring,Corrosion Resistor | 1 |
| 07***14 | O-Ring,(F4350-63a1a-2 ) | 1 |
| 07***08 | Plug,(Without Oil Pressure Switch) | 3 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Corrosion Resistor (2/2)(#10159-10180)
| 07***13 | Connector | 4 |
| 07***13 | Connector,(North America Spec.) | 2 |
| 07***02 | Bushing | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Corrosion Resistor Bracket(#10181-)
| 61***40 | Bracket | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Corrosion Resistor Piping(#10181-)
| 07***13 | Connector | 4 |
| 07***13 | Connector,(North America Spec.) | 2 |
| 07***02 | Bushing | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Corrosion Resistor(#10024-10158)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***80 | Bolt,(With Corrosion Resistor) | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Corrosion Resistor(#10181-)
| 07***06 | O-Ring,Corrosion Resistor | 1 |
| 07***14 | O-Ring,(F4350-63a1a-2 ) | 1 |
| 07***08 | Plug,(Without Oil Pressure Switch) | 3 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Crankshaft
| 01***45 | Washer,(For Travel Motor) (Not Show) | 1 |
| 04***28 | Pin, Dowel - Transmission Case, Pin-Dowel | 2 |
| 07***11 | Plug,(For Shipping) | 6 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Cylinder Block Cover (Crank Case)(#10024-10171)
| 01***20 | Bolt,(For Mono Lever Steering) | 53 |
| 61***50 | Gasket,Cylinder Block Cover | 6 |
| 61***51 | Gasket (K2) | 6 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Cylinder Block Cover (Crank Case)(#10172-10192)
| 01***20 | Bolt,(For Mono Lever Steering) | 66 |
| 01***80 | Bolt,(With Corrosion Resistor) | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Cylinder Block Cover (Crank Case)(#10193-)
| 01***20 | Bolt,(For Mono Lever Steering) | 64 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 2 |
| 01***80 | Bolt,(With Corrosion Resistor) | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Cylinder Block Cover (Water Jacket)(#10024-10171)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 9 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 28 |
| 01***40 | Bolt (Op) | 21 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Cylinder Block Cover (Water Jacket)(#10172-10192)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 9 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 28 |
| 01***40 | Bolt (Op) | 21 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Cylinder Block Cover (Water Jacket)(#10193-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 9 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 28 |
| 01***40 | Bolt (Op) | 21 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Cylinder Block Gasket Kit
| 07***18 | O-Ring,(See Fig.1601-29?1602-17) | 1 |
| 07***55 | O-Ring,Front Accessory Drive | 1 |
| 07***09 | O-Ring,Oil Pump | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Cylinder Block(#10024-10171)
| 01***18 | Bolt | 12 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 12 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Cylinder Block(#10172-)
| 01***18 | Bolt | 12 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 12 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Cylinder Head
| 07***28 | O-Ring,(For Transmission Screen) | 2 |
| 07***28 | O-Ring,(For Hd325-6?Hm400-1) (A2110) | 2 |
| 07***08 | Plug (Kit) | 4 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Cylinder Head Gasket Kit
| 02***16 | O-Ring (Kit) | 4 |
| 02***87 | O-Ring (K1) | 4 |
| 02***91 | O-Ring (K1) | 8 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Damper
| 04***28 | Pin, Dowel - Transmission Case, Pin-Dowel | 1 |
| 61***20 | Washer | 12 |
| 61***00 | Damper Ass'Y | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Engine Mounting(#10024-10096)
| 01***45 | Bolt,(For Slag Handling) | 6 |
| 01***50 | Bolt, Fuel Tank Mounting - Front Left | 12 |
| 01***55 | Bolt | 6 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Engine Mounting(#10097-)
| 01***75 | Bolt, Hanger Bearing Mounting | 12 |
| 01***65 | Bolt,(With Canvas Or Rops Canopy) | 12 |
| 01***95 | Bolt,(For Shipping) | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Ether Starting (Chassis Mount)(#10024-10180)
| 07***15 | Tube | 1 |
| 60***80 | Resistor,Ether Starting | 1 |
| 61***50 | Tube | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Ether Starting (Chassis Mount)(#10181-)
| 07***15 | Tube | 1 |
| 60***80 | Resistor,Ether Starting | 1 |
| 61***50 | Tube | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Ether Starting Aid Piping (Engine Mount)(#10024-10180)
| 01***70 | Bolt,(With Wear Guard) | 1 |
| 01***16 | Bolt - Seat And Tether Belt Mounting | 2 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Ether Starting Aid Piping (Engine Mount)(#10181-)
| 01***70 | Bolt,(With Wear Guard) | 1 |
| 01***16 | Bolt - Seat And Tether Belt Mounting | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Exhaust Manifold Cover (Engine L.H. Side)(#10193-)
| 01***12 | Bolt - Front Cover Mounting | 2 |
| 01***16 | Bolt | 16 |
| 01***20 | Bolt | 42 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Exhaust Manifold Cover (Engine R.H. Side)(#10193-)
| 01***12 | Bolt - Front Cover Mounting | 2 |
| 01***16 | Bolt | 14 |
| 01***20 | Bolt | 15 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Exhaust Manifold Cover (For Japan)(#10173-10192)
| 01***16 | Bolt - Box Mounting | 8 |
| 01***20 | Bolt | 38 |
| 01***25 | Bolt,Joint | 56 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Exhaust Manifold Cover(#10024-10096)
| 01***16 | Bolt | 8 |
| 01***20 | Bolt | 66 |
| 01***25 | Bolt,Joint | 53 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Exhaust Manifold Cover(#10097-10172)
| 01***16 | Bolt - Box Mounting | 8 |
| 01***20 | Bolt | 66 |
| 01***25 | Bolt,Joint | 53 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Exhaust Manifold Cover(#10173-10192)
| 01***16 | Bolt - Box Mounting | 8 |
| 01***20 | Bolt | 38 |
| 01***25 | Bolt,Joint | 56 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Exhaust Manifold(#10024-10192)
| 01***20 | Bolt | 8 |
| 01***60 | Bolt | 4 |
| 01***45 | Bolt,R.H | 8 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Exhaust Manifold(#10193-)
| 01***20 | Bolt | 8 |
| 01***60 | Bolt | 4 |
| 01***45 | Bolt,R.H | 8 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Exhaust Pipe(#10024-10180)
| 01***95 | Bolt | 1 |
| 01***05 | Nut,(For Air Conditioner Less), Nut | 4 |
| 01***10 | Nut,(Without Air Conditioner) | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Exhaust Pipe(#10181-)
| 01***95 | Bolt | 1 |
| 01***05 | Nut,(For Air Conditioner Less), Nut | 4 |
| 01***10 | Nut,(Without Air Conditioner) | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Flywheel
| 01***65 | Bolt | 12 |
| 04***28 | Pin, Dowel - Transmission Case, Pin-Dowel | 1 |
| 61***20 | Washer | 12 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Flywheel Housing
| 01***35 | Bolt | 3 |
| 01***60 | Bolt (M20-2.50x60) | 5 |
| 01***65 | Bolt, Mount Side Weights | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Front Hanger
| 01***80 | Bolt,For Weight Adjusting Bolt | 1 |
| 01***00 | Bolt,For Weight Adjusting Bolt | 4 |
| 01***10 | Nut,(Without Air Conditioner) | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Filter (Chassis Mount)(#10024-10180)
| 07***12 | Gasket,Mechanical Pump Piping | 1 |
| 60***10 | Cartridge | 3 |
| 60***11 | Cartridge,Fuel Filter | 3 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Filter (Chassis Mount)(#10181-)
| 07***12 | Gasket,Mechanical Pump Piping | 1 |
| 60***11 | Cartridge,Fuel Filter | 3 |
| 60***01 | Fuel Filter Ass'Y | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Injection Nozzle (Inner Parts)
| 61***10 | Holder | 1 |
| 61***11 | Holder Ass'Y | 1 |
| 61***12 | Holder Ass'Y | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Injection Pump (Feed Pump) (Inner Parts)(#10097-)
| DK***00 | Adapter | 1 |
| DK***00 | Valve,Check | 4 |
| DK***10 | Feed Pump Ass'Y | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Injection Pump (Feed Pump? L.H.) (Inner Parts)(#10024-10096)
| DK***00 | Adapter | 1 |
| DK***00 | Valve,Check | 4 |
| DK***80 | Feed Pump Ass'Y | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Injection Pump (Feed Pump? R.H.) (Inner Parts)(#10024-10096)
| DK***00 | Adapter | 1 |
| DK***00 | Valve,Check | 4 |
| DK***00 | Plug | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Injection Pump (Governor? L.H.) (1/2) (Inner Parts)(#10024-10096)
| DK***20 | Shim? 0.05mm | 0 |
| DK***20 | Link | 1 |
| DK***00 | Nut | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Injection Pump (Governor? L.H.) (1/2) (Inner Parts)(#10097-)
| DK***00 | Gasket | 1 |
| DK***00 | Gear | 1 |
| DK***00 | Connector | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Injection Pump (Governor? L.H.) (2/2) (Inner Parts)(#10024-10096)
| DK***80 | Shim? 0.5mm | 0 |
| DK***40 | Gasket,Air Compressor | 2 |
| DK***20 | Spring,Governor | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Injection Pump (Governor? L.H.) (2/2) (Inner Parts)(#10097-)
| DK***80 | Shim? 0.5mm | 0 |
| DK***40 | Gasket,Air Compressor | 4 |
| DK***00 | Nut,Cap | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Injection Pump (Pump? L.H.) (1/2) (Inner Parts)(#10024-10096)
| 61***10 | Injection Pump Ass'Y,L.H | 1 |
| DK***70 | Seal,Oil | 1 |
| DK***50 | O-Ring | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Injection Pump (Pump? L.H.) (1/2) (Inner Parts)(#10097-)
| 61***30 | Injection Pump Ass'Y,L.H | 1 |
| 61***31 | Injection Pump Ass'Y,L.H | 1 |
| DK***30 | Bearing,Roller | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Injection Pump (Pump? L.H.) (2/2) (Inner Parts)(#10024-10096)
| DK***00 | O-Ring | 6 |
| DK***20 | Bolt | 1 |
| DK***00 | Screw | 6 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Injection Pump (Pump? L.H.) (2/2) (Inner Parts)(#10097-)
| DK***00 | Nut | 12 |
| DK***00 | Shim? 0.875mm | 0 |
| DK***00 | Shim? 0.500mm | 0 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Injection Pump (Pump? R.H.) (1/2) (Inner Parts)(#10024-10096)
| 61***50 | Injection Pump Ass'Y,R.H | 1 |
| DK***70 | Seal,Oil | 1 |
| DK***50 | O-Ring | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Injection Pump (Pump? R.H.) (1/2) (Inner Parts)(#10097-)
| 61***70 | Injection Pump Ass'Y,R.H | 1 |
| DK***30 | Bearing,Roller | 1 |
| DK***80 | Bolt,Eye | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Injection Pump (Pump? R.H.) (2/2) (Inner Parts)(#10024-10096)
| DK***00 | Rack,Control | 1 |
| DK***00 | O-Ring | 6 |
| DK***20 | Bolt | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Injection Pump (Pump? R.H.) (2/2) (Inner Parts)(#10097-)
| DK***00 | Nut | 12 |
| DK***00 | Shim? 0.875mm | 0 |
| DK***00 | Shim? 0.500mm | 0 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Injection Pump And Air Vent Piping(#10024-10096)
| 01***12 | Bolt - M8 - 1.25 X 12 | 1 |
| 01***40 | Screw, Hex Socket | 1 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 3 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Injection Pump And Air Vent Piping(#10097-)
| 01***40 | Screw, Hex Socket | 1 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 3 |
| 01***45 | Bolt,(With Water Separator Type) | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Injection Pump Drive
| 01***65 | Bolt - Return Line And Suction Linehose Clamps | 8 |
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 2 |
| 01***45 | Bolt, Mounting Cranking Motor | 6 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Injection Pump Fuel Piping(#10024-10096)
| 01***30 | Screw | 22 |
| 01***45 | Bolt | 8 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 4 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Injection Pump Fuel Piping(#10097-)
| 01***30 | Screw | 22 |
| 01***45 | Bolt | 8 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 4 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Injection Pump Mounting(#10024-10096)
| 01***35 | Bolt,(F4320-52a0 -5 ) | 2 |
| 01***50 | Bolt,(Spark Arrester Spec.) | 1 |
| 01***75 | Bolt | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Injection Pump Mounting(#10097-)
| 01***30 | Bolt,(With Body Positioner) | 3 |
| 01***70 | Screw | 1 |
| 01***70 | Bolt | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Injection Pump Oil Piping(#10024-10096)
| 01***30 | Bolt - M8 X 30lg | 1 |
| 01***35 | Bolt,(For Fix Position) | 1 |
| 01***20 | Capscrew | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Injection Pump Oil Piping(#10097-)
| 01***40 | Screw, Hex Socket | 1 |
| 01***45 | Screw | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Nozzle And Spill Pipe (1/2)
| 01***12 | Bolt - M8 - 1.25 X 12 | 2 |
| 01***25 | Bolt,(Rear Attachment Less) | 2 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Nozzle And Spill Pipe (2/2)
| 01***12 | Bolt - M8 - 1.25 X 12 | 1 |
| 01***25 | Bolt,(Rear Attachment Less) | 2 |
| 01***40 | Screw, Hex Socket | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Supply And Over Flow Piping (1/2)(#10024-10096)
| 01***35 | Bolt,(For Fix Position) | 4 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***50 | Bolt,(Spark Arrester Spec.) | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Supply And Over Flow Piping (1/2)(#10097-10180)
| 01***35 | Bolt,(For Fix Position) | 4 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***55 | Bolt,(See Service News) | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Supply And Over Flow Piping (1/2)(#10181-)
| 01***35 | Bolt,(For Fix Position) | 4 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***55 | Bolt,(See Service News) | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Supply And Over Flow Piping (2/2)(#10024-10096)
| 01***40 | Screw, Hex Socket | 2 |
| 01***55 | Screw | 12 |
| 01***20 | Bolt,(For Mono Lever Steering) | 12 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Supply And Over Flow Piping (2/2)(#10097-10180)
| 01***40 | Screw, Hex Socket | 2 |
| 01***45 | Screw | 4 |
| 01***55 | Screw | 12 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Fuel Supply And Over Flow Piping (2/2)(#10181-)
| 01***40 | Screw, Hex Socket | 2 |
| 01***45 | Screw | 4 |
| 01***55 | Screw | 12 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Gear Case Cover(#10024-10171)
| 01***90 | Screw | 12 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***90 | Bolt,For Weight Adjusting Bolt | 18 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Gear Case Cover(#10172-)
| 01***90 | Screw | 12 |
| 01***90 | Bolt,For Weight Adjusting Bolt | 18 |
| 01***25 | Bolt | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Gear Case(#10024-10096)
| 01***55 | Screw | 7 |
| 01***75 | Bolt | 1 |
| 01***90 | Screw | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Gear Case(#10097-10171)
| 01***55 | Screw | 7 |
| 01***75 | Bolt | 1 |
| 01***90 | Screw | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Gear Case(#10172-)
| 01***55 | Screw | 7 |
| 01***75 | Bolt | 1 |
| 01***90 | Screw | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Mechanical Pump And Piping(#10024-10096)
| 01***16 | Bolt - Box Mounting | 2 |
| 01***25 | Capscrew | 2 |
| 01***40 | Screw, Hex Socket | 4 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Mechanical Pump And Piping(#10097-10130)
| 01***25 | Capscrew | 2 |
| 01***40 | Screw, Hex Socket | 2 |
| 01***16 | Bolt (Op) | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Muffler Band Group(#10181-)
| 01***20 | Bolt | 1 |
| 01***30 | Bolt | 6 |
| 01***45 | Bolt | 4 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Muffler Drain Piping(#10024-10180)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 2 |
| 01***40 | Screw, Hex Socket | 1 |
| 01***20 | Bolt,(For Mono Lever Steering) | 3 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Muffler Drain Piping(#10181-10192)
| 01***40 | Screw, Hex Socket | 1 |
| 01***20 | Bolt,(For Mono Lever Steering) | 3 |
| 01***30 | Bolt,(With Body Positioner) | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Muffler Drain Piping(#10193-)
| 01***50 | Capscrew | 1 |
| 01***20 | Bolt,(For Mono Lever Steering) | 3 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Muffler Ejector Piping(#10024-10180)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 20 |
| 01***11 | Nut, Nylon Lock | 2 |
| 01***16 | Washer,Radio Controlled Slag Handling | 6 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Muffler Ejector Piping(#10181-)
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 20 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 3 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Muffler Mounting(#10024-10168)
| 01***20 | Bolt,(For Mono Lever Steering) | 5 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 28 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 3 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Muffler Mounting(#10169-10180)
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 3 |
| 01***25 | Bolt,Joint | 7 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Muffler Mounting(#10181-10192)
| 01***25 | Bolt,Joint | 7 |
| 01***30 | Bolt | 11 |
| 01***80 | Screw | 4 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Muffler Mounting(#10193-)
| 01***25 | Bolt,Joint | 7 |
| 01***30 | Bolt | 10 |
| 01***80 | Screw | 5 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Muffler(#10181-)
| 01***11 | Nut,(For Center Guard) | 8 |
| 61***12 | Muffler | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Name Plate And Caution (Japanese-English)(#10024-10178)
| 04***60 | Screw, Serial Number Plate | 4 |
| 09***02 | Plate? Name | 1 |
| 09***61 | Plate? Instruction,(Japanese-English) (Not Shown) | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Name Plate And Caution (Japanese-English)(#10181-)
| 04***60 | Screw, Serial Number Plate | 4 |
| 09***02 | Plate? Name | 1 |
| 62***10 | Plate? Name,(Limited Supply) (English) | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Oil Cooler
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***25 | Bolt,(Rear Attachment Less) | 4 |
| 01***75 | Capscrew | 5 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Oil Filler
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***11 | Nut,(With Under Mirror) | 4 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Oil Filter Piping And Piston Cooler
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***45 | Screw | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Oil Filter(#10024-10075)
| 01***40 | Bolt,(Not Used With Cab) | 5 |
| 01***70 | Bolt - Thrust Plate Mounting | 3 |
| 01***85 | Bolt,Front | 4 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Oil Filter(#10076-)
| 01***40 | Bolt,(Not Used With Cab) | 6 |
| 01***70 | Bolt - Thrust Plate Mounting | 3 |
| 01***85 | Bolt,Front | 4 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Oil Level Gauge
| 01***22 | Capscrew | 12 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 2 |
| 01***11 | Nut,(With Under Mirror) | 4 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Oil Level Sensor(#10024-10096)
| 01***65 | Bolt,L.H | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***80 | Bolt,(With Corrosion Resistor) | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Oil Level Sensor(#10097-10137)
| 01***12 | Bolt - Front Cover Mounting | 3 |
| 01***08 | Washer | 3 |
| 07***12 | Gasket,(Without Air Compressor Type) (K1) | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Oil Level Sensor(#10138-)
| 01***65 | Bolt,L.H | 2 |
| 01***12 | Bolt - Front Cover Mounting | 3 |
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Oil Pan And Suction Tube(#10024-10096)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 11 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 3 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Oil Pan And Suction Tube(#10097-)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Oil Pressure Sensor(#10024-10165)
| 07***12 | Washer, Gasket,(Without Thermo Sensor) (K1) | 1 |
| 60***30 | Sensor,Oil Pressure | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Oil Pump(#10024-10164)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 12 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 1 |
| 01***50 | Bolt,(Spark Arrester Spec.) | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Oil Pump(#10165-10204)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 12 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 1 |
| 01***50 | Bolt,(Spark Arrester Spec.) | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Oil Pump(#10205-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 12 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 1 |
| 01***50 | Bolt,(Spark Arrester Spec.) | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Piston
| 02***13 | Pin, Dowel | 2 |
| 61***10 | Pin. Piston | 12 |
| 61***60 | Piston Ring Ass'Y, Per Cylinder | 12 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Pre Cleaner(#10181-)
| 60***70 | Pre-Cleaner | 3 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Rocker Arm Housing Cover Mounting(#10171-10172)
| 01***55 | Bolt,(See Service News) | 57 |
| 01***30 | Capscrew (1) | 3 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 60 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Rocker Arm Housing Cover Mounting(#10173-)
| 01***20 | Bolt,(For Mono Lever Steering) | 3 |
| 01***55 | Bolt,(See Service News) | 51 |
| 01***20 | Capscrew | 6 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Rocker Arm Housing Cover(#10024-10105)
| 01***55 | Bolt,(See Service News) | 60 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 60 |
| 01***16 | Washer,Radio Controlled Slag Handling | 60 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Rocker Arm Housing Cover(#10106-10170)
| 01***55 | Bolt,(See Service News) | 57 |
| 01***30 | Capscrew (1) | 3 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 57 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Rocker Arm Housing Cover(#10171-)
| 61***12 | Cover,Head | 12 |
| 61***81 | Packing,Nozzle Holder (K1) | 12 |
| 61***12 | Gasket, Head Cover | 12 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Rocker Arm(#10024-10171)
| 01***55 | Bolt - Mount Cage To Transmission Case | 12 |
| 01***90 | Bolt,For Weight Adjusting Bolt | 72 |
| 01***15 | Bolt | 12 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Rocker Arm(#10172-)
| 01***55 | Bolt - Mount Cage To Transmission Case | 12 |
| 01***15 | Bolt | 12 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 12 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Rocker Arm? Other(#10172-)
| 01***90 | Bolt,For Weight Adjusting Bolt | 72 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 72 |
| 61***23 | Packing - (K1) | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Spare Parts(#10024-10180)
| 60***41 | Cartridge,Oil Filter | 4 |
| 60***11 | Filter, By-Pass (Spin-On) (1) | 3 |
| 60***11 | Cartridge,Fuel Filter | 3 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Spare Parts(#10181-)
| 60***41 | Cartridge,Oil Filter | 4 |
| 60***11 | Filter, By-Pass (Spin-On) (1) | 3 |
| 60***11 | Cartridge,Fuel Filter | 3 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Starting Motor (11kw)(#10024-10060)
| 01***40 | Bolt,(For Center Guard) | 6 |
| 01***30 | Bolt,(With Body Positioner) | 1 |
| 01***16 | Washer,Radio Controlled Slag Handling | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Starting Motor (11kw)(#10061-)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 08***14 | Band,(For Additional Fuel Strainer) | 4 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Starting Motor (Inner Parts) (11kw)(#10024-10060)
| 60***60 | Starting Motor Ass'Y,(11kw) | 1 |
| SD***X0 | Pinion Clutch Ass'Y | 1 |
| SD***40 | Relay,Safety | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Starting Motor (Inner Parts) (11kw)(#10061-)
| 60***61 | Starting Motor Ass'Y,(11kw) | 1 |
| SD***X0 | Pinion Clutch Ass'Y | 1 |
| SD***X0 | Cover | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Tachometer Drive
| 01***16 | Bolt - Box Mounting | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
| 07***08 | Plug,(Without Auto Priming System) | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Thermostat Housing(#10024-10136)
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Thermostat Housing(#10137-10192)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 10 |
| 01***90 | Capscrew | 12 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 5 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Thermostat Housing(#10193-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 16 |
| 01***90 | Capscrew | 12 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 5 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Thermostat Water Piping(#10024-10136)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Thermostat Water Piping(#10137-10192)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***30 | Bolt,(With Body Positioner) | 4 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Thermostat Water Piping(#10193-)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 7 |
| 01***30 | Bolt,(With Body Positioner) | 4 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Timing Gear
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 4 |
| 01***35 | Bolt,(For Fix Position) | 6 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 5 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Turbocharger (Inner Parts)(#10024-10192)
| 01***25 | Capscrew | 4 |
| 04***50 | Screw | 2 |
| 65***40 | Ring,Seal (Kit) | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Turbocharger (Inner Parts)(#10193-)
| 01***25 | Capscrew | 4 |
| 04***50 | Screw | 2 |
| 65***41 | Ring,Seal | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Turbocharger Cover (Engine L.H. Side)(#10193-)
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***20 | Bolt | 19 |
| 01***25 | Bolt,Joint | 21 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Turbocharger Cover (Engine R.H. Side)(#10193-)
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***20 | Bolt | 12 |
| 01***25 | Bolt,Joint | 28 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Turbocharger Cover (For Japan)(#10173-10192)
| 01***25 | Bolt | 6 |
| 01***20 | Bolt | 58 |
| 01***25 | Bolt,Joint | 5 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Turbocharger Cover(#10024-10096)
| 01***25 | Bolt | 7 |
| 01***20 | Bolt | 45 |
| 01***25 | Bolt,Joint | 6 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Turbocharger Cover(#10097-10172)
| 01***25 | Bolt | 7 |
| 01***20 | Bolt | 45 |
| 01***25 | Bolt,Joint | 6 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Turbocharger Cover(#10173-10192)
| 01***25 | Bolt | 6 |
| 01***20 | Bolt | 58 |
| 01***25 | Bolt,Joint | 5 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Turbocharger Oil Piping (Engine L.H. Side)(#10193-)
| 01***40 | Bolt,(For Center Guard) | 1 |
| 01***90 | Bolt | 1 |
| 01***35 | Bolt,(For Fix Position) | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Turbocharger Oil Piping (Engine R.H. Side)(#10193-)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***35 | Bolt,(For Fix Position) | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Turbocharger Oil Piping(#10024-10192)
| 01***35 | Bolt,(For Fix Position) | 4 |
| 01***22 | Capscrew | 1 |
| 01***30 | Bolt,(With Body Positioner) | 10 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Turbocharger Water Piping(#10024-10192)
| 01***20 | Bolt,(For Mono Lever Steering) | 16 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 18 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Turbocharger Water Piping(#10193-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 16 |
| 01***20 | Bolt | 8 |
| 01***32 | Washer,(With Auto Emergency Steering) | 24 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Water Drain (For Oil Cooler And Water Jacket)
| 07***80 | Clamp, Drain Hose | 2 |
| 07***90 | Hose | 2 |
| 07***11 | Hose | 2 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Water Manifold
| 07***65 | O-Ring (K6) | 24 |
| 61***70 | Pipe,Water | 1 |
| 61***80 | Ring, Snap | 12 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Water Pump
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 10 |
| 01***30 | Bolt,(With Body Positioner) | 12 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Water Pump Gasket Kit
| 07***12 | O-Ring,(Fig.A5010) | 1 |
| 07***95 | O-Ring | 1 |
| 07***65 | O-Ring | 1 |
Komatsu : Sa12v170-1d(S/N 10024-Up) : Engine : Water Temperature Sensor
| 07***12 | Washer, Gasket,(Without Thermo Sensor) (K1) | 1 |
| 78***20 | Sensor, Trans. Control Valve Oil Temperature | 1 |
SA12V170-1D(S/N 10024-UP) serial number reference
The engine serial plate is riveted to the engine block, typically on the left side near the injection pump. The prefix is the alphanumeric model code (e.g., SA12V170-1D) stamped on the plate, followed by the serial number starting at 10024 for this specific configuration.
| Prefix | Identifies | Notes |
|---|---|---|
| SA12V170-1D | Standard | Serial range 10024-UP. Factory spec sheet and parts catalog for this engine model. No 3-character PIN prefixes listed in source text for this specific engine serial range; PIN data applies to export chassis (PC/D/WA/GD/HM) built approx. 2003 onward. Verify with dealer for specific machine PIN. |
| SA12V170-1D-EA | Variant | Serial range 10001-UP. Listed as other catalog variant. Verify with dealer. |
| SA12V170-1D-A | Variant | Serial range 10001-UP. Listed as other catalog variant. Verify with dealer. |
| SA12V170-1D-E | Variant | Serial range 10024-UP. Listed as other catalog variant. Verify with dealer. |
Frequently asked questions
What engine does the Komatsu SA12V170-1D use?
The SA12V170-1D is a 12-cylinder, V-configuration, water-cooled, turbocharged diesel engine with a 170mm bore and stroke. It features a Bosch PE-ZWX fuel pump and a Bosch RSUV centrifugal all-speed governor. It powers the D575A-3 Super Dozer and HD1200M-1 Rigid Dump Truck.
What is the operating weight of the machine powered by this engine?
The operating weight varies by configuration. The D575A-3 Super Dozer weighs approximately 105,000 to 115,000 lbs depending on the blade and ripper configuration. The HD1200M-1 Rigid Dump Truck has an operating weight of approximately 250,000 lbs when loaded.
What replaced the SA12V170-1D engine?
The SA12V170-1D was succeeded by the SA12V170E-2 series engine. The E-2 series introduced electronic control units (ECU) for improved fuel efficiency and emissions compliance, replacing the mechanical governor system found in the 1D series.
What SA12V170-1D(S/N 10024-UP) owners discuss
What are the known powertrain and hydraulic behaviors for the Komatsu SA12V170-1D engine?
The SA12V170-1D is a 12-cylinder V-configuration diesel engine with a bore and stroke of 170 mm each, resulting in a total displacement of 46.3 liters. It typically delivers flywheel horsepower of 858 kW (1,150 HP) at 1,800 rpm for the D575A-2SD configuration, or 878 kW (1,177 HP) at 2,100 rpm for the HD1200M-1 configuration. Maximum torque ranges from 4,638 Nm (473 kgm) at 1,400 rpm to 5,658 Nm (577 kgm) at 1,300 rpm depending on the application. The engine uses a Bosch PE-ZWX fuel pump and a Bosch RSUV centrifugal, all-speed governor. Owners note that hydraulic performance is directly tied to engine RPM; if engine speed drops under load while hydraulic movements remain weak, the hydraulic system is the primary suspect. Conversely, if engine RPM drops heavily when hydraulics are engaged, the engine may be unable to produce expected power or the hydraulic system is placing excessive load on the engine. Common issues include slow movements when hot due to decreased oil viscosity and internal leakage, and sudden derating triggered by specific fault codes requiring immediate engine or aftertreatment diagnosis. Have your dealer verify hydraulic pressure specifications for your specific serial range.
What undercarriage or wear patterns are typical for machines powered by this engine series?
Machines equipped with the SA12V170-1D, such as the D575A-3 dozer, are heavy earthmoving units subject to continuous load, dust exposure, and temperature extremes. Typical wear patterns include rapid undercarriage degradation, track-chain wear, and roller damage from packed mud or debris. Operators report that machines may pull to one side or travel faster on one side due to track tension discrepancies or mechanical resistance rather than hydraulic failure. Final drives are known to develop grinding noises from the travel motor, requiring inspection of oil levels and contamination. The swing system may exhibit weakness or slow movement, often linked to the swing motor, control valve circuit, or swing brake release system. Upper structure drift or failure to hold position indicates potential swing brake issues or mechanical play. Regular inspection of track tension and undercarriage components is critical to prevent repeated loosening and excessive wear.
What are the common engine quirks per the SA12V170-1D series?
The SA12V170-1D series exhibits specific operational quirks related to its mechanical governor and fuel system. The low idling speed varies by frequency: 900–1,000 rpm for 60 Hz applications and 700–900 rpm for 50 Hz applications. The engine is sensitive to air and fuel restrictions; loss of power under digging load often stems from clogged air filters, fuel filters, or restricted fuel tank venting rather than internal engine failure. Overheating is a common issue during heavy excavation, often caused by material packed between the radiator, hydraulic oil cooler, charge-air cooler, and air-conditioning condenser. The engine requires specific starting equipment: 24V, 11 kW x 2 starting motors for some configurations, or 37.5 kW air starters for others. Dry weight varies by configuration, ranging from 5,450 kg to 5,600 kg. Fuel consumption ratio is rated at 216 g/kW·h (161 g/HP·h) at rated load. Have your dealer verify the correct starting motor and governor type for your specific serial number.
What are the common electrical and sensor issues reported by owners?
Komatsu excavators and dozers with this engine series rely heavily on electronic control systems, where a single faulty sensor or unstable power supply can trigger multiple warning signals. Owners frequently report intermittent starting, dashboard failures, and random machine shutdowns. A common diagnostic pitfall is replacing components based on symptoms before determining if the issue affects one function or the entire machine. Intermittent starting is often traced to battery state of charge, battery terminals, engine and chassis grounds, or the main starter cable. Voltage collapse under load during starting can mimic a bad starter but is actually a battery or connection issue. Multiple fault codes often point to battery health, ground connections, or connector integrity. Owners are advised to perform load and voltage-drop tests on the battery before ordering a starter, and to check all electrical grounds and connectors when multiple unrelated faults appear.
What fluids and capacities are specified for the SA12V170-1D engine?
The engine requires Komatsu Genuine Oil/Fuel & Wear Analysis (KOWA) compliant fluids. Diesel engine oil should meet Komatsu Engineering Standards. Hydraulic oil should be Komatsu HO or equivalent ISO VG46. Powertrain oil should be Komatsu TO or equivalent SAE 10W or 30W. Axle oil should be Komatsu AXO or equivalent SAE 80W. Coolant should be Komatsu Super Coolant AF-NAC or equivalent. Lubricating oil refill capacity and coolant capacity are not explicitly quantified in the provided source text for this exact serial range; verify with your dealer. The engine uses a 24V electrical system with batteries specified as 12V 200Ah x 4 in some configurations, or 24V 35A alternators in others. Turbochargers are Komatsu KTR130 or KTR150 x 2 depending on the application. Have your dealer verify the exact fluid capacities and battery configuration for your serial number.
What should be checked when buying a used machine with the SA12V170-1D engine?
When purchasing a used machine with the SA12V170-1D engine (S/N 10024-UP), verify the exact serial prefix to confirm the engine model and configuration, as specs vary by application (e.g., D575A-3 dozer vs. HD1200M-1 dumper). Check the engine for signs of overheating, such as coolant expulsion or high pressure shortly after cold start. Inspect the cooling package for packed debris between heat exchangers. Test the engine under load to ensure it maintains RPM and does not lose power when combining boom, arm, and bucket movements. Verify hydraulic performance cold and hot to detect internal leakage that worsens with temperature. Check for intermittent starting or random shutdowns, which may indicate electrical or sensor issues. Inspect the undercarriage for track tension, roller condition, and chain wear. Verify the condition of the fuel filters, water separator, and air intake hoses. Have your dealer verify the engine's current performance curve and torque specifications against the factory spec sheet for your serial range.
How does the SA12V170-1D compare to the SAA12V140 engine in terms of efficiency and size?
The SAA12V140 engine was developed as a replacement for the SA12V170 engine in the 800/700 kW output range. Compared to the SA12V170, the SAA12V140 offers approximately 5% smaller fuel consumption, is lighter in weight, and is more compact in size with a volume about 18% smaller. The SA12V170-1D remains a high-output engine with a larger displacement (46.3 liters) and higher torque figures (up to 5,658 Nm) compared to the SAA12V140. Owners note that while the SAA12V140 is more efficient and compact, the SA12V170-1D provides robust power for heavy-duty applications where size and weight are less critical than raw torque and durability. Have your dealer verify which engine is installed in your specific machine, as serial number breaks determine the engine type.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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