Komatsu SA6D170-A-1T(S/N 14203-UP)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu SA6D170-A-1T (S/N 14203-UP) is a six-cylinder, turbocharged, water-cooled diesel engine belonging to the 170 Series (Build 15E). It powers mid-to-heavy class Komatsu construction equipment, including the WA700 and WA600 wheel loaders and the HD465-5 rigid dump truck. Production for this specific serial range spans approximately 2017 to 2026. The engine features a 170 mm bore and a 23.1-liter displacement, delivering power ratings typically between 550 and 700 hp depending on the specific machine application and emissions configuration. It succeeded earlier 6D170 variants and serves as the powerplant for the 170 Series platform, which remains a staple in the used equipment market due to its widespread deployment in earthmoving and hauling fleets.
Across the 170 Series generations, the SA6D170-A-1T represents a transition to stricter emissions compliance while maintaining the robust mechanical architecture of its predecessors. The 'T' suffix denotes specific Tier 4/Stage IV emissions package integration, including advanced fuel injection and aftertreatment systems compared to the earlier SA6D170-A-1. This engine is valuable in the used and parts market because of its high torque density and durability in heavy-duty cycles. The SA6D170-A-1T is frequently found in WA700-1L/WA700-3L wheel loaders and HD465-5 dump trucks. Its modular design and commonality with other 170 Series engines make it a critical component for fleet maintenance, supported by an aftermarket network for rebuild kits and undercarriage components.
Below: full specifications, fluids & capacities, the factory service schedule, common service parts, verified fault codes, what owners discuss, attachment guidance, the complete assembly directory, and a serial-number reference. Complete parts lists with full OEM part numbers, exploded diagrams, quantities, and fitment data are available free in Heavy Parts AI.
Komatsu SA6D170-A-1T(S/N 14203-UP) specifications
Engine
| Model | SA6D170-A-1T (Build 15E) |
| Gross Power | 568 kW @ 2000 rpm (762 hp @ 2000 rpm) |
| Net Power | 391 kW @ 1800 rpm (524 hp @ 1800 rpm) |
| Displacement | 23.2 L (1416 in³) |
| Cylinders | 6 in-line |
| Bore | 170.0 mm (6.69 in) |
| Stroke | 170.0 mm (6.69 in) |
| Emissions Tier | Tier 2 / EU Stage II |
Weights
| Engine Weight | 2740 kg (6041 lb) |
Dimensions
| Engine Length | 1860 mm (73.2 in) |
| Engine Width | 1240 mm (48.8 in) |
| Engine Height | 2093 mm (82.4 in) |
Performance
| Torque | 2650 Nm @ 1300 rpm (1954 lbf-ft @ 1300 rpm) |
Service capacities (summary)
| Note | Specific fluid capacities for the SA6D170-A-1T engine are not documented in the provided source text. Consult the Komatsu operation and maintenance manual for the specific machine model (e.g., WA700, WA600, or HD465) equipped with this engine for exact fill volumes. |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
Komatsu SA6D170-A-1T(S/N 14203-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 SA6D170-A-1T(S/N 14203-UP) beyond the schedule
Predictive Maintenance & Fluid Analysis
Utilize KOWA (Komatsu Oil Wear Analysis) at every 500-hour interval to monitor engine oil wear metals (iron, copper, lead, aluminum) and contaminants like silicon (dirt) and sodium (coolant). Check hydraulic fluid particle count and viscosity. Test coolant pH, SCA concentration, and glycol content. Monitor KOMTRAX telematics for load frequency and fault codes. Early detection of fuel dilution or soot buildup in the engine oil prevents premature turbocharger and bearing wear on the SA6D170-A-1T.
Corrective & Common Repairs
Address SA6D170-A-1T specific failures by inspecting the turbocharger for shaft play and checking the water pump impeller and seal for leaks. Common repairs include replacing the fuel filter and hydraulic return filter to protect the high-pressure injection system. Inspect the cylinder head gasket and valve guides for wear. Check the oil pump and pressure relief valve for proper lubrication pressure. Replace worn piston rings and connecting rod bearings during inframe overhauls to restore compression and reduce oil consumption.
Overhaul & Rebuild Points
Plan the SA6D170-A-1T inframe overhaul around 10,000-15,000 hours, depending on maintenance history. The kit includes new pistons, rings, cylinder liners, connecting rod bearings, and upper gaskets. For out-of-frame rebuilds, replace main bearings, thrust bearings, camshaft bearings, and valve components. Inspect the crankshaft for wear and the cylinder block for cracks. Ensure proper torque specifications for the cylinder head bolts to prevent head gasket failure under high load.
Seasonal & Environment Servicing
In cold climates, check the coolant freeze protection and use low-temperature oil to ensure proper flow during startup. In dusty environments, inspect the air filter restriction indicator frequently and clean the radiator and oil cooler fins daily to prevent overheating. In high-humidity areas, check the fuel water separator more often to prevent microbial growth. Ensure the DEF tank is filled with high-quality urea solution to maintain emissions system efficiency and prevent SCR catalyst damage.
SA6D170-A-1T(S/N 14203-UP) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 07000-02075 | O-Ring,Steering Oil Filter | Lubrication service | Check fitment → |
| 600-651-1250 | Element | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
SA6D170-A-1T(S/N 14203-UP) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| CA115 | Engine crankshaft speed sensor failure | Broken sensor, wiring issue, or connector corrosion | Replace the speed sensor and verify voltage at the pin connector |
| CA111 | Internal engine controller fault | ECM hardware or software failure | Replace or reprogram the ECM |
| CA451 | Common rail pressure sensor feedback value too high | Malfunction in the rail sensor or actual overpressure condition | Diagnose the fuel rail pressure sensor or pump lines |
| CA122 | Intake air pressure sensor feedback voltage too high | Sensor malfunction or wiring issue | Verify the intake pressure sensor and wiring |
| CA123 | Intake air pressure sensor feedback voltage too low | Sensor short or airflow restriction | Check for a sensor short or an airflow restriction |
| CA441 | Battery voltage too low | Weak battery or charging system failure | Replace the alternator or battery; check the voltage regulator |
| CA442 | Battery voltage too high | Alternator regulator failure | Replace the alternator or battery; check the voltage regulator |
| CA234 | Engine overspeed | Throttle calibration error, engine load cycle issue, or operator misuse | Verify throttle calibration, engine load cycle, or operator misuse |
| CA153 | Intake air temperature sensor feedback voltage too high | Sensor malfunction | Replace or test the IAT sensor |
| CA154 | Intake air temperature sensor feedback voltage too low | Sensor malfunction | 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.
SA6D170-A-1T(S/N 14203-UP) attachments & work tools
Wheel Loader Attachments
The Komatsu WA700 series wheel loader is the primary equipment class for the SA6D170-A-1T engine (S/N 14203-Up). Factory specifications list a standard bucket capacity of 9.2 m³ (12.0 yd³) for this configuration. The machine operates at an approximate weight of 97,100 kg (214,000 lb). Bucket sizes vary by configuration/series depending on material density and specific model variant.
Wheel Loader Attachments
The WA600 series is another compatible loader class for this engine family, featuring a bucket capacity range of 6.4 to 7.8 m³ (8.4 to 10.2 yd³). Operating weight for the WA600 class ranges from 55,400 to 57,501 kg (122,000 to 126,800 lb). Bucket capacity varies by configuration/series based on the specific loader model and attachment package.
Dozer/Dump Truck Applications
The Komatsu HD465-5 dump truck (S/N 4001-Up) and HD465-7 (S/N 7001-Up) utilize the SAA6D170E-2A engine variant, which is part of the 170 series family. The HD605-5 dump truck (S/N 1001-Up) also uses the SAA6D170E-2A engine. Specific work tool capacities for these haulers are not documented in the provided source text.
Generator Set Applications
The SA6D170-A-1T engine is used in Komatsu diesel generator sets, including the EGS650, EGS760, EGS850, and DCA series units. These applications utilize the engine for power generation rather than mechanical work tools. Specific generator output capacities and mounting configurations are not detailed in the provided source text.
All SA6D170-A-1T(S/N 14203-UP) assemblies by section
Every catalogued assembly group for the Komatsu SA6D170-A-1T(S/N 14203-UP). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Accessory
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Accessory : Air Compressor
| 61***00 | Air Compressor Ass'Y | 1 |
| DK***00 | Cylinder | 1 |
| DK***40 | Gasket,Air Compressor | 1 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Accessory : Air Compressor And Mounting
| 01***25 | Bolt,(Without Auto Priming System) | 6 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 2 |
| 01***70 | Bolt, Heater Hose Clip | 2 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Accessory : Air Compressor Piping (1/2)
| 01***16 | Bolt,(For Slag Handling) | 2 |
| 01***06 | Nut, Regular Hexagon (M8-1.25) | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Accessory : Air Compressor Piping (2/2)
| 01***55 | Bolt,(For Trimming Dozer) | 3 |
| 01***60 | Bolt (M10-1.50x60) | 2 |
| 07***12 | Gasket,(Without Air Compressor Type) (K1) | 9 |
Cooling System
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Cooling System : Cooling Fan And Mounting
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***40 | Bolt,(Dust And Dirt Protection) | 6 |
| 01***45 | Bolt,(Cold Terrain Spec.) | 6 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Cooling System : Corrosion Resistor And Piping
| 01***35 | Bolt,(Without Auto Priming System) | 1 |
| 01***50 | Bolt,(For Trimming Dozer) | 1 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 4 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Cooling System : Tension Pulley
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 1 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 3 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Cooling System : Water Pump And Mounting
| 01***25 | Bolt,(Without Auto Priming System) | 1 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 1 |
| 01***30 | Bolt,(For France Noise Suppression) | 5 |
Cylinder Block
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Cylinder Block : Camshaft And Cam Follower
| 01***32 | Washer,(Not Used With Emergency Str.) | 12 |
| 04***38 | Key | 1 |
| 04***12 | Ring, Snap (4) | 2 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Cylinder Block : Crankshaft
| 04***28 | Key, Plain Woodruff | 1 |
| 04***24 | Pin,Dowel (For No.3 Housing) | 1 |
| 61***20 | Washer | 6 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Cylinder Block : Cylinder Block
| 01***18 | Bolt | 6 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***30 | Bolt,(For France Noise Suppression) | 6 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Cylinder Block : Cylinder Block Cover
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 1 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***30 | Bolt,(For France Noise Suppression) | 18 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Cylinder Block : Flywheel And Flywheel Housing
| 01***16 | Bolt,(Sandy And Dusty Spec.) | 1 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 8 |
| 01***30 | Bolt,(For France Noise Suppression) | 3 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Cylinder Block : Front Cover And Front Support
| 01***16 | Bolt,(For Slag Handling) | 9 |
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 3 |
| 01***25 | Bolt,(Without Auto Priming System) | 2 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Cylinder Block : Gear Case Cover And Gear
| 01***60 | Bolt, Trunnion Cap | 10 |
| 01***35 | Bolt,(For Pedal Steering) | 4 |
| 01***40 | Bolt,(Not Used With Cab) | 2 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Cylinder Block : Oil Pan
| 01***12 | Bolt,(Without R.P.C.U.) | 3 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 1 |
| 01***30 | Bolt,(For France Noise Suppression) | 49 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Cylinder Block : Piston And Connecting Rod
| 02***13 | Pin, Dowel | 4 |
| 61***10 | Pin. Piston | 6 |
| 61***80 | Piston Ring Ass'Y,Per Cylinder | 6 |
Cylinder Head
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Cylinder Head : Air Intake Connector And Tube
| 01***20 | Bolt,(Large Capacity Type) (Std) | 6 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 4 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Cylinder Head : Air Intake Manifold And After Cooler
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 7 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 1 |
| 01***40 | Bolt,(For Position Fixing) | 4 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Cylinder Head : Air Intake Manifold And After Cooler (For Pm-Clinic)(#15358-)
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 7 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 1 |
| 01***40 | Bolt,(For Position Fixing) | 4 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Cylinder Head : Cylinder Head
| 07***28 | O-Ring,(For Transmission Screen) | 2 |
| 07***08 | Plug (Kit) | 4 |
| 07***11 | Plug,(For Shipping) | 1 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Cylinder Head : Exhaust Brake And Mounting (1/2)(#15361-)
| 01***30 | Bolt,(For France Noise Suppression) | 6 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 4 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 1 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Cylinder Head : Exhaust Brake And Mounting (2/2)(#15361-)
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 1 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 2 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 4 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Cylinder Head : Exhaust Brake And Mounting(#14203-15360)
| 01***30 | Bolt,(For France Noise Suppression) | 3 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 1 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 3 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Cylinder Head : Exhaust Brake(#14203-15360)
| 61***00 | Exhaust Brake Ass'Y | 1 |
| 62***70 | Spring,(Repair Part) (For Japan) | 1 |
| 62***80 | Spring,(Repair Part) (For Japan) | 1 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Cylinder Head : Exhaust Connector (For Without Exhaust Brake)
| 01***35 | Bolt, Mounting - Flywheel Housing End | 3 |
| 01***55 | Capscrew - M12 | 3 |
| 01***32 | Washer,(With Auto Emergency Steering) | 3 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Cylinder Head : Exhaust Manifold And Turbocharger
| 01***00 | Bolt | 19 |
| 01***10 | Bolt | 3 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Cylinder Head : Exhaust Manifold And Turbocharger (For Pm-Clinic)(#15322-)
| 01***00 | Bolt | 19 |
| 01***10 | Bolt | 3 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Cylinder Head : Rocker Arm And Housing
| 01***55 | Bolt,(For France Noise Suppression) | 6 |
| 01***90 | Bolt,For Reversible Fan | 36 |
| 01***15 | Bolt | 6 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Cylinder Head : Rocker Arm Housing Cover
| 01***55 | Bolt,(For Suction? Reversible Fan) | 17 |
| 01***95 | Bolt,(For Reversible Fan) | 4 |
| 01***00 | Bolt (M10-1.50x100) | 4 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Cylinder Head : Turbocharger (Except Japan)
| 61***01 | Turbocharger Ass'Y,(See Fig.0155) | 1 |
| 61***02 | Turbocharger Ass'Y,(Tv7701) | 1 |
| 61***01 | Turbocharger Ass'Y,(See Fig.0155) | 1 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Cylinder Head : Water Manifold And Thermostat
| 01***12 | Bolt,(Without R.P.C.U.) | 1 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 6 |
| 01***30 | Bolt,(For France Noise Suppression) | 5 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Cylinder Head : Water Piping
| 01***30 | Bolt,(For France Noise Suppression) | 6 |
| 01***45 | Bolt,(For Suction? Reversible Fan) | 8 |
| 01***65 | Bolt,(For Suction Fan)(4d130-1d) | 2 |
Electrical System
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Electrical System : Alternator (50a)
| 60***81 | Alternator A. (50a) | 1 |
| SD***X0 | Coil Assembly | 1 |
| SD***X0 | Washer | 1 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Electrical System : Alternator And Mounting
| 01***30 | Bolt,(For France Noise Suppression) | 4 |
| 01***40 | Bolt,(Dust And Dirt Protection) | 1 |
| 01***35 | Bolt,(Cold Weather Spec.) | 1 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Electrical System : Alternator Drive
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 2 |
| 04***24 | Pin, Spring | 1 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Electrical System : Starting Motor And Mounting
| 01***20 | Bolt,(Used When Towing Winch) | 2 |
| 01***25 | Bolt - Rear Guard Mounting | 1 |
| 01***45 | Bolt,(For Slag Handling) | 6 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Electrical System : Starting Motor? L.H. (7.5kw)
| 60***30 | Starting Motor Ass'Y,(7.5kw) (See Fig.A6210-B7a3) | 1 |
| KD***20 | Magnetic Switch Assembly | 1 |
| KD***40 | Spring,Spring | 4 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Electrical System : Starting Motor? R.H. (7.5kw)
| 60***10 | Starting Motor Ass'Y,(7.5kw) | 1 |
| KD***20 | Magnetic Switch Assembly | 1 |
| KD***40 | Spring,Spring | 4 |
Fuel System
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Fuel System : Coupling (For Electrical Governor) (High Altitude Indonesia Spec.)(#17389-)
| DK***00 | Washer | 8 |
| DK***40 | Nut | 8 |
| DK***00 | Washer | 4 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Fuel System : Feed Pump (For Electrical Governor) (High Altitude Indonesia Spec.)(#17389-)
| DK***00 | Valve,Check | 4 |
| DK***20 | Bolt,Joint | 1 |
| DK***30 | Eye,Joint | 1 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Fuel System : Fuel Filter
| 07***12 | Gasket,Mechanical Pump Piping | 2 |
| 07***08 | Plug,(Without Auto Priming System) | 1 |
| 07***12 | Plug,(For Shipping) (Not Shown) | 1 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Fuel System : Fuel Injection Pump (Coupling)
| DK***00 | Washer | 8 |
| DK***40 | Nut | 8 |
| DK***00 | Washer | 4 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Fuel System : Fuel Injection Pump (Coupling) (High Altitude Peru Spec.)(#17389-)
| DK***00 | Washer | 8 |
| DK***40 | Nut | 8 |
| DK***00 | Washer | 4 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Fuel System : Fuel Injection Pump (Feed Pump)
| DK***00 | Valve,Check | 4 |
| DK***20 | Bolt,Joint | 1 |
| DK***30 | Eye,Joint | 1 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Fuel System : Fuel Injection Pump (Feed Pump) (High Altitude Peru Spec.)(#17389-)
| DK***00 | Valve,Check | 4 |
| DK***20 | Bolt,Joint | 1 |
| DK***30 | Eye,Joint | 1 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Fuel System : Fuel Injection Pump (Governor) (1/2)
| DK***20 | Shim? 0.05mm | 0 |
| DK***40 | Ring,Snap | 1 |
| DK***00 | Nut | 1 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Fuel System : Fuel Injection Pump (Governor) (1/2) (High Altitude Indonesia Spec.)(#17389-)
| DK***20 | Shim? 0.05mm | 0 |
| DK***40 | Ring,Snap | 1 |
| DK***00 | Nut | 1 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Fuel System : Fuel Injection Pump (Governor) (1/2) (High Altitude Peru Spec.)(#17389-)
| DK***20 | Shim? 0.05mm | 0 |
| DK***40 | Ring,Snap | 1 |
| DK***00 | Nut | 1 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Fuel System : Fuel Injection Pump (Governor) (2/2)
| DK***80 | Shim? 0.5mm | 0 |
| DK***00 | Gasket | 1 |
| DK***40 | Gasket,Air Compressor | 2 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Fuel System : Fuel Injection Pump (Governor) (2/2) (High Altitude Indonesia Spec.)(#17389-)
| DK***80 | Shim? 0.5mm | 0 |
| DK***40 | Gasket,Air Compressor | 2 |
| DK***20 | Spring,Governor | 1 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Fuel System : Fuel Injection Pump (Governor) (2/2) (High Altitude Peru Spec.)(#17389-)
| DK***80 | Shim? 0.5mm | 0 |
| DK***40 | Gasket,Air Compressor | 2 |
| DK***00 | Screw | 1 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Fuel System : Fuel Injection Pump (Pump) (1/2)
| 61***10 | Injection Pump Ass'Y | 1 |
| DK***30 | Shim? 0.14mm | 0 |
| DK***30 | Bearing | 2 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Fuel System : Fuel Injection Pump (Pump) (1/2) (High Altitude Indonesia Spec.)(#17389-)
| 61***90 | Injection Pump Ass'Y | 1 |
| DK***30 | Shim? 0.14mm | 0 |
| DK***30 | Bearing | 2 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Fuel System : Fuel Injection Pump (Pump) (1/2) (High Altitude Peru Spec.)(#17389-)
| 61***50 | Injection Pump Ass'Y | 1 |
| DK***30 | Shim? 0.14mm | 0 |
| DK***30 | Bearing | 2 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Fuel System : Fuel Injection Pump (Pump) (2/2)
| DK***00 | Screw | 6 |
| DK***20 | Valve,Delivery | 6 |
| DK***20 | Tappet | 6 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Fuel System : Fuel Injection Pump (Pump) (2/2) (High Altitude Indonesia Spec.)(#17389-)
| DK***00 | Screw | 6 |
| DK***20 | Valve,Delivery | 6 |
| DK***20 | Tappet | 6 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Fuel System : Fuel Injection Pump (Pump) (2/2) (High Altitude Peru Spec.)(#17389-)
| DK***00 | Screw | 6 |
| DK***20 | Valve,Delivery | 6 |
| DK***20 | Tappet | 6 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Fuel System : Fuel Injection Pump And Mounting
| 01***16 | Bolt (Welded) | 2 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 5 |
| 01***55 | Bolt,(For Suction? Reversible Fan) | 1 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Fuel System : Fuel Injection Pump And Mounting (High Altitude Indonesia Spec.)(#17389-)
| 01***16 | Bolt - Box Mounting | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 5 |
| 01***55 | Bolt,(See Service News) | 1 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Fuel System : Fuel Injection Pump And Mounting (High Altitude Peru Spec.)(#17389-)
| 01***16 | Bolt - Box Mounting | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 5 |
| 01***55 | Bolt,(See Service News) | 1 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Fuel System : Fuel Injection Pump Drive
| 01***30 | Bolt,(For France Noise Suppression) | 4 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 5 |
| 01***30 | Bolt,(Cold Weather Spec.) | 6 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Fuel System : Fuel Injection Pump Piping (1/2)
| 01***30 | Bolt | 8 |
| 01***35 | Bolt | 1 |
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Fuel System : Fuel Injection Pump Piping (2/2)
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 1 |
| 01***40 | Bolt,(Dust And Dirt Protection) | 2 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 1 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Fuel System : Fuel Nozzle And Spill Pipe(#14203-14804)
| 07***14 | Tube, Spill | 5 |
| 07***80 | Clip | 10 |
| 61***10 | Holder Ass'Y | 1 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Fuel System : Fuel Nozzle And Spill Pipe(#14805-)
| 07***14 | Tube, Spill | 5 |
| 07***80 | Clip | 10 |
| 61***10 | Bolt,Nozzle Holder | 12 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Fuel System : Injection Pump (Timer)
| 61***90 | Timer Ass'Y | 1 |
| DK***50 | Shim? 0.6mm | 0 |
| DK***20 | Seat,Spring | 2 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Fuel System : Injection Pump (Timer) (High Altitude Indonesia Spec.)(#17389-)
| 61***90 | Timer Ass'Y | 1 |
| DK***50 | Shim? 0.6mm | 0 |
| DK***20 | Seat,Spring | 2 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Fuel System : Injection Pump (Timer) (High Altitude Peru Spec.)(#17389-)
| 61***90 | Timer Ass'Y | 1 |
| DK***50 | Shim? 0.6mm | 0 |
| DK***20 | Seat,Spring | 2 |
Lubricating Oil System
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Lubricating Oil System : Lubricating Oil Cooler
| 01***16 | Bolt (Welded) | 12 |
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***65 | Bolt,(For Alternator Bracket Mount) | 3 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Lubricating Oil System : Lubricating Oil Cooler (For Pm-Clinic)(#15322-)
| 01***16 | Bolt (Welded) | 12 |
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***65 | Bolt,(For Alternator Bracket Mount) | 3 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Lubricating Oil System : Lubricating Oil Filter And Mounting
| 01***40 | Bolt,(Dust And Dirt Protection) | 3 |
| 01***50 | Bolt - Torque Converter Totransmission Mounting | 1 |
| 01***70 | Bolt, Heater Hose Clip | 2 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Lubricating Oil System : Lubricating Oil Filter Piping
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 3 |
| 01***45 | Bolt,(Cold Terrain Spec.) | 6 |
| 01***60 | Bolt, Trunnion Cap | 3 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Lubricating Oil System : Lubricating Oil Pump And Suction Pipe
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 2 |
| 01***70 | Bolt, Spacer | 2 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Lubricating Oil System : Mechanical Pump And Piping
| 01***16 | Bolt (Welded) | 2 |
| 01***40 | Bolt,(Dust And Dirt Protection) | 1 |
| 01***12 | Bolt | 4 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Lubricating Oil System : Turbocharger Lubricating Oil Piping
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 2 |
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Lubricating Oil System : Turbocharger Lubricating Oil Piping (For Pm-Clinic)(#15358-)
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 2 |
Tool And Kit
Komatsu : Sa6d170-A-1t(S/N 14203-Up) : Tool And Kit : Gasket Kit
| 02***75 | O-Ring,(For Japan) (K1) | 4 |
| 07***09 | O-Ring,(F4350-61a0 -33 ) | 1 |
| 07***12 | O-Ring, Between Valve And Pump | 1 |
SA6D170-A-1T(S/N 14203-UP) serial number reference
The engine serial number is stamped on the engine block, typically on the left side near the injection pump, or on a metal data plate affixed to the engine near the valve cover. The machine PIN/serial plate is riveted to the right-hand side of the cab on the lower frame, typically just behind the front idler or beneath the operator's window.
| Prefix | Identifies | Notes |
|---|---|---|
| SA6D170-A-1T | Engine Model | SA6D170-A-1T (S/N 14203-UP). Factory spec sheet and parts catalog for this range. No 3-character PIN prefixes listed for this engine serial range in source text. Verify with dealer. |
Frequently asked questions
What engine does the Komatsu SA6D170-A-1T (S/N 14203-UP) use?
It uses the Komatsu SA6D170-A-1T, a six-cylinder, turbocharged, water-cooled diesel engine with a 23.1-liter displacement and a 170 mm bore. It is part of the 170 Series (Build 15E) and typically produces 550-700 hp depending on the application.
What is the operating weight of the machine powered by this engine?
Operating weight varies by configuration. For the WA700 wheel loader, it is approximately 97,100 kg. For the WA600 wheel loader, it ranges from 55,400 to 57,501 kg. For the HD465-5 dump truck, the weight varies by configuration and attachment package.
What replaced the Komatsu SA6D170-A-1T engine?
The SA6D170-A-1T is part of the 170 Series. Newer Komatsu equipment often utilizes the SAA6D170E series engines (such as SAA6D170E-2A or SAA6D170E-3F-8) for later model year machines like the HD465-7 and HD605-5, which feature updated emissions packages and performance characteristics.
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