Komatsu SA6D170E-2C(S/N 17353-UP)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu SA6D170E-2C engine (S/N 17353-UP) is a 23.1-liter, six-cylinder, turbocharged diesel powerplant designed for heavy-duty construction applications. It powers the WA600-3 series wheel loaders, which feature an operating weight range of approximately 55,400 to 57,500 kg (122,130 to 126,765 lb) and bucket capacities between 6.4 and 7.8 cubic meters. This engine series succeeded the earlier SA6D170-2 and SA6D170E-2A variants, representing a generation focused on meeting Tier 2/EU Stage II emissions standards while delivering high torque for heavy loading cycles. Configurations include standard and long-reach loader variants, with the SA6D170E-2C specifically designated for serial numbers 17353 and up.
Across the 6D170 series generations, the primary evolution involved the integration of advanced fuel injection systems and aftercooling to improve thermal efficiency and reduce particulate matter without requiring complex exhaust aftertreatment like DPFs found in later Tier 4/Stage V models. The SA6D170E-2C remains critical in the used and parts market because it bridges the gap between older mechanical engines and modern electronic controls, offering a robust platform for high-horsepower wheel loaders and dozers. Its widespread use in the WA600 and D375A-3 series ensures a large installed base, driving consistent demand for overhaul kits, injectors, and undercarriage components as these machines age.
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 SA6D170E-2C(S/N 17353-UP) specifications
Engine
| Model | SA6D170E-2C |
| Serial Range | 17353-UP |
| Cylinders | 6 |
| Displacement | 23.1 L (1413 in³) |
| Bore | 170 mm (6.69 in) |
| Stroke | 170 mm (6.69 in) |
| Aspiration | Turbocharged, after-cooled, cooled EGR |
| Emissions Tier | Tier 2 / EU Stage II |
Weights
| Engine Weight | 1700 kg (3748 lb) |
Dimensions
| Note | Machine transport dimensions not documented for this specific engine serial range in source texts. |
Performance
| Engine Power (Range) | 394 kW (528 hp) to 568 kW (762 hp) |
| Power Note | Varies by configuration/series; 394 kW @ 1800 RPM for WA600-8; 568 kW @ 2000 RPM for WA700-8 |
Service capacities (summary)
| Note | Fluid capacities not documented for this specific engine serial range in source texts. |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
Komatsu SA6D170E-2C(S/N 17353-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 SA6D170E-2C(S/N 17353-UP) beyond the schedule
Predictive Maintenance & Fluid Analysis
Utilize KOWA (Komatsu Oil Wear Analysis) at every 500-hour interval to monitor engine wear metals and hydraulic contamination. Track coolant SCA concentration levels to prevent cavitation in the SA6D170E-2C cylinder liners. Analyze hydraulic oil particle counts to detect pump or valve wear early. Monitor DEF levels if the specific machine variant requires Tier 4 compliance, though the 2C series typically relies on engine design for emissions. Consistent fluid sampling prevents catastrophic failure in the high-pressure fuel system and hydraulic circuits.
Corrective & Common Repairs
Address frequent injector failures by checking for fuel contamination and water in the separator daily. Replace turbocharger seals if excessive oil consumption or blue smoke appears, a common issue in high-hour SA6D170E-2C engines. Inspect the oil cooler core for blockage, which leads to overheating under heavy load. Check the fuel lift pump pressure to ensure adequate supply to the high-pressure pump. Replace worn piston rings if blow-by exceeds limits, restoring compression and power output for the WA600 loader.
Overhaul & Rebuild Points
Plan for inframe overhaul around 15,000 to 20,000 hours, focusing on piston, ring, and liner replacement. Replace the crankshaft bearings and camshaft if wear measurements exceed factory tolerances. Inspect the cylinder head for warping or cracked valves during major service. Rebuild the hydraulic pump and swing motor if flow rates drop significantly. Use genuine gasket kits to ensure proper sealing of the high-pressure fuel lines and coolant passages in the 23.1L block.
Seasonal & Environment Servicing
In cold climates, verify coolant freeze protection and use low-viscosity engine oil to ensure cold starts. Clean the radiator and oil cooler fins frequently in dusty environments to prevent overheating. In high-humidity areas, drain the fuel separator more often to prevent water-induced injector corrosion. Inspect air intake seals to prevent dust ingestion, which accelerates cylinder liner wear. Adjust idle speeds and fuel limits if operating at high altitudes to maintain optimal combustion efficiency.
SA6D170E-2C(S/N 17353-UP) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 07281-00197 | Clamp,(With Pre-Fuel Filter) | Fuel system service | Check fitment → |
| 600-311-8293 | Cartridge, Fuel Filter | Fuel system service | Check fitment → |
| 6127-71-6205 | Fuel Filter Ass'Y | Fuel system service | Check fitment → |
| 600-311-8321 | Cartridge,Fuel Filter | Fuel system service | Check fitment → |
| 6127-71-6501 | Fuel Filter Ass'Y | Fuel system service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
SA6D170E-2C(S/N 17353-UP) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| CA115 | Engine crankshaft speed sensor and backup speed sensor failure | Faulty speed sensor, broken wiring harness, or corroded connector at the sensor pin | Inspect sensor wiring and connectors; replace the speed sensor if voltage is abnormal |
| CA111 | Engine controller internal fault | Electronic Control Module (ECM) hardware failure or internal circuit malfunction | Replace or reprogram the ECM |
| CA451 | Common rail pressure sensor feedback value too high | Malfunctioning rail pressure sensor, actual overpressure condition, or sensor wiring issue | Diagnose the fuel rail pressure sensor and check pump lines for blockage |
| CA234 | Engine overspeed | Throttle calibration error, excessive engine load cycle, or operator misuse | Verify throttle calibration and review engine load cycles |
| CA122 | Intake air pressure sensor feedback voltage too high | Faulty intake pressure sensor or wiring short | Verify the intake pressure sensor operation and inspect wiring |
| CA123 | Intake air pressure sensor feedback voltage too low | Sensor short circuit or airflow restriction in the intake system | Check for sensor short and inspect for airflow restrictions |
| CA441 | Battery voltage too low | Weak battery, failing alternator, or loose connections | Replace the alternator or battery; check the voltage regulator |
| CA442 | Battery voltage too high | Faulty voltage regulator or alternator overcharging | Replace the alternator or battery; check the voltage regulator |
| CA153 | Intake air temperature sensor feedback voltage too high | Faulty Intake Air Temperature (IAT) sensor | Replace or test the IAT sensor |
| CA154 | Intake air temperature sensor feedback voltage too low | Faulty Intake Air Temperature (IAT) sensor or short circuit | Replace or test the IAT sensor |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
SA6D170E-2C(S/N 17353-UP) attachments & work tools
Wheel Loader Attachments
The SA6D170E-2C engine is fitted to the WA600-3 series wheel loaders (serial A53001-UP) and WA700-3 series (serial 50001-UP). Typical bucket capacities for this class range from 6.4 to 9.2 cubic meters, with operating weights between 55,400 and 97,100 kg. Factory configurations include standard quick-coupler systems for rapid tool changes and high-lift linkage options for loading applications.
Crawler Excavator Attachments
This engine powers the PC1250-7 series excavators (serial 10001-UP). Standard work tools include heavy-duty digging buckets and grading buckets sized for 125-ton class operations. Hydraulic breaker kits and tilt-rotator couplers are common aftermarket options, requiring specific high-flow hydraulic circuit configurations to match the engine's power output.
Mining Dump Trucks
The SA6D170E-2C is used in the HD465-7E0 and HD605-7E0 rigid frame dump trucks (serial the OEM part reference-UP). These machines utilize standard high-capacity dump bodies designed for mining and heavy haulage. Factory guarding options include underbody protection and reinforced chassis components to withstand abrasive mining environments.
Bulldozer Attachments
The engine is specified for the D375A-8 series bulldozers. Work tools include semi-U and universal dozer blades with varying widths and capacities for earthmoving. Factory configurations often include ripper attachments for rock breaking, requiring specific hydraulic line routing and pressure settings compatible with the engine's hydraulic pump output.
Industrial Generator Sets
The SA6D170E-2C powers the EGS1000-7 and EGS1050-7 generator sets. These units are configured for continuous prime power applications with standard sound-attenuated enclosures. Factory options include automatic voltage regulators and remote monitoring interfaces, with cooling systems sized to maintain engine temperature under full load.
All SA6D170E-2C(S/N 17353-UP) assemblies by section
Every catalogued assembly group for the Komatsu SA6D170E-2C(S/N 17353-UP). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Engine
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Additional Fuel Filer (Sandy And Dusty Spec.)(#18669-)
| 01***45 | Bolt | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***45 | Bolt | 2 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : After Cooler Water Piping (Tire Imflation Kit)(#19928-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***30 | Bolt,(With Body Positioner) | 5 |
| 01***45 | Bolt,(With Water Separator Type) | 8 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : After Cooler Water Piping(#18669-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***30 | Bolt,(With Body Positioner) | 5 |
| 01***45 | Bolt,(With Water Separator Type) | 8 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Air Cleaner And Mounting(#18669-19073)
| 01***70 | Bolt - Bracket And Oil Inlet Tubemounting | 2 |
| 01***75 | Bolt (M10-1.50x75) | 2 |
| 01***08 | Nut, Regular Hexagon (M10-1.50) | 8 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Air Cleaner And Mounting(#19074-)
| 01***70 | Bolt - Bracket And Oil Inlet Tubemounting | 2 |
| 01***75 | Bolt (M10-1.50x75) | 2 |
| 01***08 | Nut, Regular Hexagon (M10-1.50) | 8 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Air Compressor (Inner Parts)(#19928-)
| 61***00 | Air Compressor Ass'Y | 1 |
| DK***00 | Cylinder | 1 |
| DK***00 | Nipple | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Air Compressor Gasket Kit(#19928-)
| 07***15 | O-Ring,(Without Boom Kickout) | 1 |
| 07***85 | O-Ring,(Without Fuel Level Gauge) | 1 |
| 07***28 | O-Ring, Strainer To Control Pump Line | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Air Compressor Mounting(#19928-)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 1 |
| 01***45 | Bolt,(With Water Separator Type) | 1 |
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 2 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Air Compressor Piping(#19928-)
| 01***55 | Screw | 3 |
| 01***60 | Bolt,(F4320-52a0 -5- ) | 2 |
| 07***12 | Gasket,(Without Air Compressor Type) (K1) | 2 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Air Intake Manifold And After Cooler (Tire Imflation Kit)(#19928-)
| 01***40 | Screw, Hex Socket | 4 |
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***95 | Capscrew | 15 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Air Intake Manifold And After Cooler(#18669-)
| 01***40 | Screw, Hex Socket | 4 |
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***95 | Capscrew | 15 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Alternator (50a) (Inner Parts)(#18669-)
| 60***81 | Alternator A. (50a) | 1 |
| SD***X0 | Coil Assembly | 1 |
| SD***X0 | Washer | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Alternator (75a) (Inner Parts)(#18669-)
| 60***50 | Alternator A. (75a) | 1 |
| SD***X0 | Coil Assembly | 1 |
| SD***X0 | Washer | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Alternator Drive (Hardening)
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 2 |
| 04***24 | Pin, Spring | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Alternator Mounting (50a)(#18669-)
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***40 | Bolt (Op) | 2 |
| 01***55 | Bolt - Mount Cage To Transmission Case | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Alternator Mounting (75a)(#18669-)
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***40 | Bolt (Op) | 2 |
| 01***55 | Bolt - Mount Cage To Transmission Case | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Auto Primming System (1/2)(#18669-20106)
| 01***12 | Bolt - Front Cover Mounting | 4 |
| 01***65 | Capscrew | 7 |
| 01***19 | Washer,(Not Used With Ventilator) | 4 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Auto Primming System (1/2)(#20107-)
| 01***12 | Bolt - Front Cover Mounting | 4 |
| 01***65 | Capscrew | 7 |
| 01***19 | Washer,(Not Used With Ventilator) | 4 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Auto Primming System (2/2)(#18669-20106)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***75 | Bolt (M10-1.50x75) | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Auto Primming System (2/2)(#20107-)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***75 | Bolt (M10-1.50x75) | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Camfollower Cover(#18669-18951)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***30 | Bolt,(With Body Positioner) | 18 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 2 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Camfollower Cover(#18952-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***30 | Bolt,(With Body Positioner) | 18 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 2 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Camshaft And Camfollower(#18669-19339)
| 01***32 | Washer,(Not Used With Emergency Str.) | 12 |
| 04***38 | Key | 1 |
| 04***12 | Ring, Snap (4) | 4 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Camshaft(#19340-)
| 01***32 | Washer,(Not Used With Emergency Str.) | 12 |
| 04***38 | Key | 1 |
| 04***12 | Ring, Snap (4) | 4 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Controller(#19887-)
| 78***00 | A.P.S. Control Unit,(Forwarded Individually Parts) | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Cooling Fan(#18669-)
| 01***40 | Bolt,For Weight Adjusting Bolt | 6 |
| 01***36 | Washer,Radio Controlled Slag Handling | 6 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 6 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Corrosion Resistor
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***50 | Screw | 1 |
| 01***95 | Bolt | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Crank Pulley(#18669-)
| 61***20 | Washer | 6 |
| 61***22 | Bolt | 6 |
| 61***40 | Pulley? Hardening | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Crankshaft
| 04***28 | Key, Plain Woodruff | 1 |
| 04***24 | Pin,Dowel (For No.3 Housing) | 1 |
| 61***00 | Bearing Assembly | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Cylinder Block Blind Cover(#19340-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 2 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Cylinder Block Gasket Kit(#18669-)
| 04***12 | Lock (Kit) | 1 |
| 07***09 | O-Ring,(F4350-61a0 -33 ) | 3 |
| 07***12 | O-Ring, Between Valve And Pump | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Cylinder Block(#18669-19339)
| 01***18 | Bolt | 6 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 2 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Cylinder Block(#19340-)
| 01***18 | Bolt | 6 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 6 |
| 04***14 | Pin, Dowel | 2 |
Komatsu : Sa6d170e-2c(S/N 17353-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 : Sa6d170e-2c(S/N 17353-Up) : Engine : Cylinder Head Cover(#17353-19339)
| 01***55 | Bolt,(See Service News) | 28 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 28 |
| 01***16 | Washer,(With Shoe Slip Control) | 28 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Cylinder Head Cover(#19340-)
| 61***12 | Cover,Head | 6 |
| 61***81 | Packing,Nozzle Holder (K1) | 6 |
| 61***11 | Gasket,Head Cover | 6 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Cylinder Head Gasket Kit(#18669-)
| 02***43 | O-Ring,Water Manifold | 2 |
| 02***75 | O-Ring,(For Japan) (K1) | 4 |
| 02***81 | O-Ring,Air Connector | 4 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Damper
| 61***00 | Damper | 1 |
| 61***01 | Damper | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Engine Mounting(#18669-)
| 01***50 | Bolt | 8 |
| 01***45 | Washer,(Without R.O.P.S.) | 8 |
| 04***34 | Pin-Dowel, Pin,Dowel (For Shipping) | 4 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Engine Stop Motor(#18669-)
| 01***25 | Capscrew | 1 |
| 01***45 | Bolt | 3 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Exhaust Manifold
| 01***90 | Bolt | 24 |
| 07***08 | Plug | 2 |
| 61***90 | Spacer | 24 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Fan Belt(#18669-)
| 04***74 | V-Belt Set | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Fan Drive(#18669-)
| 01***50 | Bolt,(Not Used When With Cab) | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***45 | Bolt, Mounting Cranking Motor | 6 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Flywheel Housing(#18669-)
| 01***45 | Bolt | 4 |
| 01***55 | Bolt | 6 |
| 01***60 | Bolt | 2 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Flywheel(#18669-19572)
| 01***90 | Bolt | 10 |
| 61***20 | Washer, Plain (M20) | 10 |
| 61***20 | Gear | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Flywheel(#19573-)
| 01***90 | Bolt | 10 |
| 61***20 | Washer, Plain (M20) | 10 |
| 61***20 | Gear | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Front Cover Mounting (Extreme Cold Terrain Spec.)(#19340-)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 9 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 9 |
| 61***60 | Pointer | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Front Cover(#18669-19339)
| 01***35 | Bolt,(For Pedal Steering) | 4 |
| 01***40 | Bolt,(Not Used With Cab) | 2 |
| 01***50 | Screw | 3 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Front Cover(#19340-)
| 01***35 | Bolt | 4 |
| 01***40 | Capscrew | 2 |
| 01***50 | Bolt,(Not Used When With Cab) | 3 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Front Power Take Off (For Tire Inflation Kit)(#19928-)
| 01***25 | Bolt,(Rear Attachment Less) | 6 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 6 |
| 04***18 | Ring, Snap | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Front Power Take Off(#18669-)
| 01***25 | Bolt,(Rear Attachment Less) | 6 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***60 | Bolt,For Weight Adjusting Bolt | 3 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Fuel Filter(#18669-18751)
| 01***65 | Capscrew | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***60 | Bolt,(F4320-52a0 -5- ) | 3 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Fuel Filter(#18752-)
| 01***70 | Screw | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***60 | Bolt,(F4320-52a0 -5- ) | 3 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Fuel Injection Pump (Coupling) (Inner Parts)(#18669-)
| DK***00 | Bolt | 2 |
| DK***00 | Bolt | 6 |
| DK***00 | Coupling | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Fuel Injection Pump (Feed Pump) (Inner Parts)(#18669-)
| DK***00 | Valve,Check | 4 |
| DK***20 | Bolt,Joint | 1 |
| DK***30 | Eye,Joint | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Fuel Injection Pump (Governor) (1/2) (Inner Parts)(#18669-)
| DK***00 | Gasket | 1 |
| DK***00 | Gear | 1 |
| DK***00 | Shim? 2.00mm,(High Altitude Spec.) | 0 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Fuel Injection Pump (Governor) (2/2) (Inner Parts)(#18669-)
| DK***80 | Shim? 0.5mm | 0 |
| DK***40 | Gasket,Air Compressor | 4 |
| DK***00 | Nut,Cap | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Fuel Injection Pump (Pump) (1/2) (Inner Parts)(#18669-)
| 61***80 | Injection Pump A | 1 |
| DK***30 | Bearing,Roller | 1 |
| DK***00 | Coupling | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Fuel Injection Pump (Pump) (2/2) (Inner Parts)(#18669-)
| DK***00 | Nut | 12 |
| DK***00 | Spring | 1 |
| DK***00 | Shim? 0.875mm | 0 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Fuel Injection Pump Bracket And Piping(#18669-20610)
| 01***25 | Capscrew | 1 |
| 01***30 | Screw | 5 |
| 01***35 | Bolt,(For Fix Position) | 4 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Fuel Injection Pump Bracket And Piping(#20611-)
| 01***30 | Screw | 4 |
| 01***35 | Bolt,(For Fix Position) | 4 |
| 01***50 | Bolt,(Spark Arrester Spec.) | 2 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Fuel Injection Pump Drive(#18669-)
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 5 |
| 01***12 | Nut | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Fuel Injection Pump Mounting(#18669-)
| 01***90 | Bolt,(For No?1 And No?3 Housing) | 4 |
| 07***10 | Connector, Grease Fitting | 1 |
| 61***30 | Pin,Dowel | 2 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Fuel Return(#18669-)
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***40 | Bolt (Op) | 1 |
| 01***55 | Bolt,(See Service News) | 2 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Head Cover Relatad Parts(#19340-)
| 01***55 | Bolt,(See Service News) | 28 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 28 |
| 01***16 | Washer,(With Shoe Slip Control) | 28 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Holder (Inner Parts)
| 61***10 | Holder Ass'Y | 6 |
| 61***11 | Holder Ass'Y | 6 |
| DK***00 | Shim? 0.80mm | 0 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Holder (Inner Parts)(#21379-)
| 61***11 | Holder Ass'Y | 6 |
| DK***00 | Shim? 0.80mm | 0 |
| DK***00 | Shim? 1.38mm | 0 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Idler Gear
| 01***35 | Bolt,(Not Shown) | 6 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 6 |
| 01***45 | Washer,(Without R.O.P.S.) | 3 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Injection Nozzle
| 07***14 | Tube, Spill | 5 |
| 07***80 | Clip | 10 |
| 61***10 | Bolt,Nozzle Holder | 12 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Injection Nozzle(#21379-)
| 07***14 | Tube, Spill | 5 |
| 07***80 | Clip | 10 |
| 61***10 | Bolt,Nozzle Holder | 12 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Lubricating Oil Cooler (With Water Heater)(#17353-19339)
| 01***16 | Bolt - Box Mounting | 10 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***25 | Bolt,(Rear Attachment Less) | 6 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Lubricating Oil Cooler(#18669-19339)
| 01***16 | Bolt - Box Mounting | 10 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***25 | Bolt,(Rear Attachment Less) | 6 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Lubricating Oil Cooler(#19340-)
| 01***16 | Bolt - Box Mounting | 10 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***65 | Capscrew | 3 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Lubricating Oil Filter
| 01***40 | Bolt,For Weight Adjusting Bolt | 2 |
| 01***45 | Bolt, Mounting Cranking Motor | 6 |
| 01***50 | Bolt,For Weight Adjusting Bolt | 2 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Lubricating Oil Pump
| 01***70 | Bolt - Bracket And Oil Inlet Tubemounting | 2 |
| 01***40 | Bolt,For Weight Adjusting Bolt | 4 |
| 01***20 | Bolt,(Forwarded Individually Parts) | 6 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Muffler And Mounting (Ec. Dynamic Noise Suppression Spec.)(#18669-)
| 01***35 | Bolt | 1 |
| 01***30 | Bolt | 2 |
| 01***70 | Bolt | 4 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Muffler Ejector Piping (Ec. Dynamic Noise Suppression Spec.)(#18669-)
| 01***25 | Bolt,Joint | 4 |
| 01***65 | Bolt,(For Alternator Bracket Mount) | 2 |
| 01***85 | Screw | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Muffler Ejector Piping(#18669-)
| 01***25 | Bolt,Joint | 4 |
| 01***65 | Bolt,(For Alternator Bracket Mount) | 1 |
| 01***85 | Screw | 2 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Muffler Mounting(#18669-)
| 01***35 | Bolt | 1 |
| 01***35 | Bolt | 1 |
| 01***30 | Bolt | 2 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Name Plate And Caution Plate (Chinese)(#19611-20106)
| 04***50 | Screw | 4 |
| 09***30 | Plate? Name,(English) (Limited Supply) | 1 |
| 61***90 | Plate? Caution,Auto Primming System | 2 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Name Plate And Caution Plate (Chinese)(#19887-)
| 61***90 | Plate? Caution,Auto Primming System | 2 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Name Plate And Caution Plate (English) (For Eu Exhaust Gas Regulation)(#19564-20050)
| 04***50 | Screw | 4 |
| 61***50 | Plate? Caution,(For Auto Primming System) | 2 |
| 61***10 | Plate? Name,(Limited Supply) | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Name Plate And Caution Plate (English)(#18669-20106)
| 04***50 | Screw | 4 |
| 09***30 | Plate? Name,(English) (Limited Supply) | 1 |
| 61***50 | Plate? Caution,(For Auto Primming System) | 2 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Name Plate And Caution Plate (For Ec Regulation)(#20107-)
| 04***50 | Screw | 4 |
| 61***10 | Plate? Name,(Limited Supply) | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Name Plate And Caution Plate (French) (For Eu Exhaust Gas Regulation)(#19564-20050)
| 04***50 | Screw | 4 |
| 61***80 | Plate? Caution,(For Auto Primming System) | 2 |
| 61***10 | Plate? Name,(Limited Supply) | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Name Plate And Caution Plate (French)(#18669-20106)
| 04***50 | Screw | 4 |
| 09***30 | Plate? Name,(English) (Limited Supply) | 1 |
| 61***80 | Plate? Caution,(For Auto Primming System) | 2 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Name Plate And Caution Plate (French)(#19887-)
| 61***80 | Plate? Caution,(For Auto Primming System) | 2 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Name Plate And Caution Plate (German) (For Eu Exhaust Gas Regulation)(#19564-20050)
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Name Plate And Caution Plate (German)(#18669-20106)
| 04***50 | Screw | 4 |
| 09***30 | Plate? Name,(English) (Limited Supply) | 1 |
| 09***30 | Plate? Name,(German) (Limited Supply) | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Name Plate And Caution Plate (German)(#19887-)
| 61***80 | Plate? Caution,(For Auto Primming System) | 2 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Name Plate And Caution Plate (Japanese-English)(#19887-)
| 61***50 | Plate? Caution,(For Auto Primming System) | 2 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Name Plate And Caution Plate (Japanese-English)(#20092-)
| 04***50 | Screw | 4 |
| 09***30 | Plate? Name,(English) (Limited Supply) | 1 |
| 60***40 | Plate? Name,(Limited Supply) | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Name Plate And Caution Plate (Spanish)(#18836-20106)
| 04***50 | Screw | 4 |
| 61***91 | Plate? Instruction,(For Auto Primming System) | 2 |
| 61***10 | Plate? Name,(Limited Supply) | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Name Plate And Caution Plate (Spanish)(#18888-20106)
| 04***50 | Screw | 4 |
| 09***30 | Plate? Name,(English) (Limited Supply) | 1 |
| 61***91 | Plate? Instruction,(For Auto Primming System) | 2 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Name Plate And Caution Plate (Spanish)(#19887-)
| 61***91 | Plate? Instruction,(For Auto Primming System) | 2 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Oil Cooler Mounting Parts (With Water Heater)(#19340-)
| 01***25 | Bolt,(Rear Attachment Less) | 6 |
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 5 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Oil Cooler Mounting Parts(#19340-)
| 01***25 | Bolt,(Rear Attachment Less) | 6 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 5 |
| 01***50 | Bolt,(Spark Arrester Spec.) | 3 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Oil Filler(#18669-)
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Oil Gauge (With Oil Heater)(#18868-)
| 61***10 | Bushing, Oil Gauge Guide | 1 |
| 61***20 | Collar | 1 |
| 61***30 | Nut,(For Shipping) | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Oil Level Gauge(#18669-)
| 61***10 | Bushing, Oil Gauge Guide | 1 |
| 61***20 | Collar | 1 |
| 61***30 | Nut,(For Shipping) | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Oil Pan And Suction Tube (With Oil Heater)(#18868-)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,(With Body Positioner) | 49 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Oil Pan And Suction Tube(#18669-)
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,(With Body Positioner) | 49 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Piston(#18669-)
| 02***13 | Pin, Dowel | 4 |
| 61***10 | Pin. Piston | 6 |
| 61***80 | Piston Ring Ass'Y,Per Cylinder | 6 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Power Take Off(#18669-)
| 01***60 | Capscrew | 10 |
| 01***30 | Bolt,(With Body Positioner) | 6 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 2 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Rocker Arm And Houning(#18669-19339)
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 1 |
| 01***55 | Bolt - Mount Cage To Transmission Case | 6 |
| 01***90 | Bolt,For Weight Adjusting Bolt | 36 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Rocker Arm And Houning(#19340-)
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 1 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 1 |
| 42***10 | Bracket | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Rocker Arm(#19340-)
| 01***55 | Bolt - Mount Cage To Transmission Case | 6 |
| 01***90 | Bolt,For Weight Adjusting Bolt | 36 |
| 01***15 | Bolt | 6 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Safety Guard(#18669-)
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 2 |
| 01***85 | Bolt,(Used With Pin Puller) | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Spare Parts(#17360-20106)
| 04***33 | V-Belt | 1 |
| 04***74 | V-Belt Set | 1 |
| 60***31 | Cartridge, Oil Filter | 2 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Spare Parts(#19887-)
| 04***33 | V-Belt,(Extreme Cold Terrain Spec.) | 1 |
| 04***74 | V-Belt Set,Fan Drive | 1 |
| 60***70 | Nut, Wing | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Starting Motor (7.5kw) (Inner Parts)(#18669-20538)
| 60***11 | Starting Motor Ass'Y, (7.5kw) | 2 |
| KD***20 | Magnetic Switch Assembly | 1 |
| KD***40 | Spring,Spring | 4 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Starting Motor (7.5kw) (Inner Parts)(#20539-)
| 60***12 | Starting Motor Ass'Y,(7.5kw) | 2 |
| KD***20 | Magnetic Switch Assembly | 1 |
| KD***40 | Spring,Spring | 4 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Starting Motor Mounting (7.5kw)(#18669-)
| 01***45 | Capscrew - M16 | 6 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 2 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Tamper Proof Kit (For Regulaition Of Epa)(#17548-)
| 61***20 | Tamper Proof Kit | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Tension Pulley(#18669-)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 3 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Thermostat Housing(#17360-)
| 01***30 | Bolt,(With Body Positioner) | 5 |
| 01***40 | Bolt (Op) | 1 |
| 01***65 | Bolt - Return Line And Suction Linehose Clamps | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Turbocharger (Inner Parts)(#18669-)
| 01***16 | Bolt | 4 |
| 01***16 | Bolt | 8 |
| 01***16 | Bolt | 8 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Turbocharger Lubricating Oil Piping(#18669-)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 1 |
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Turbocharger Mounting(#18669-)
| 01***25 | Bolt,Joint | 8 |
| 61***90 | Nut, Mounting | 4 |
| 61***10 | Gasket,Turbocharger Mounting | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Water Manifold
| 01***80 | Bolt,(With Corrosion Resistor) | 1 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 1 |
| 01***16 | Washer,Radio Controlled Slag Handling | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Water Pump Gasket Kit(#18669-)
| 07***45 | O-Ring - (K6) | 1 |
| 07***12 | O-Ring,(Extreme Cold Terrain Spec.) (K2) | 1 |
| 07***12 | O-Ring,(F4350-59a1 -17 ) | 1 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Water Pump(#18669-)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,(With Body Positioner) | 7 |
Komatsu : Sa6d170e-2c(S/N 17353-Up) : Engine : Water Temperature(#18669-)
| 01***12 | Bolt - Front Cover Mounting | 1 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 1 |
| 01***08 | Washer,(For 1 Attachment And Pat) | 1 |
SA6D170E-2C(S/N 17353-UP) serial number reference
The engine PIN plate is riveted to the engine block, typically on the left side near the injection pump or on a metal data plate affixed to the valve cover area. Read the prefix by identifying the engine model code stamped on the plate (e.g., SA6D170E-2C), which identifies the engine family and generation rather than a 3-character machine PIN prefix.
| Prefix | Identifies | Notes |
|---|---|---|
| SA6D170E-2C | Standard SA6D170E-2C engine | S/N 17353-UP. Factory spec sheet and parts catalog for this engine range. No 3-character PIN prefixes are listed for this specific engine serial range in the provided documentation; the engine model code itself serves as the primary identifier for this build sequence. |
| SA6D170E-2C-7 | SA6D170E-2C variant | S/N 17001-UP. Factory spec sheet and parts catalog for this engine range. No 3-character PIN prefixes are listed for this specific engine serial range in the provided documentation. |
| SA6D170E-2C-WD | SA6D170E-2C variant | S/N 21546-UP. Factory spec sheet and parts catalog for this engine range. No 3-character PIN prefixes are listed for this specific engine serial range in the provided documentation. |
Frequently asked questions
What is the engine specification for the Komatsu SA6D170E-2C?
The SA6D170E-2C is a 23.1-liter, six-cylinder, turbocharged diesel engine with a bore of 170 mm. It delivers approximately 391 kW (525 HP) at 1800 rpm and meets Tier 2/EU Stage II emissions standards.
What is the operating weight of the machine powered by this engine?
The WA600-3 series wheel loaders powered by the SA6D170E-2C have an operating weight range of 55,400 to 57,500 kg (122,130 to 126,765 lb), depending on the specific configuration and bucket size.
What engine replaced the SA6D170E-2C in later Komatsu models?
The SA6D170E-2C was succeeded by the SA6D170E-3 and SAA6D170E-3 series engines, which were introduced to meet stricter Tier 3 and Tier 4 Final/Stage V emissions regulations while maintaining similar displacement and power output.
What SA6D170E-2C(S/N 17353-UP) owners discuss
What are the known powertrain and hydraulic behaviors for the Komatsu SA6D170E-2C engine series?
What undercarriage or wear patterns are typical for machines powered by this engine?
What are the common engine quirks and maintenance requirements for the SA6D170E-2C series?
What are the common electrical and sensor issues associated with this engine and its machine?
What should be checked when buying a used machine with the SA6D170E-2C engine (S/N 17353-UP)?
How does the SA6D170E-2C engine compare to other Komatsu 170 series engines in terms of application and specs?
What are the critical safety fixes and maintenance items for the SA6D170E-2C engine?
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
Need a specific SA6D170E-2C(S/N 17353-UP) part?
Search live OEM part data, check fitment, and cross-reference alternatives with Heavy Parts AI.