Komatsu SA6D110-1R(S/N 54110-UP)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu SA6D110-1R engine (S/N 54110-UP) is a 6-cylinder, turbocharged, direct-injection diesel powerplant belonging to the 110 Series. It was manufactured from the mid-1990s through the early 2000s, powering the WA420-1 wheel loader and PC200-5/PC200LC-5 excavator families. The engine delivers 196-359 HP (147-268 kW) and is paired with Komatsu’s closed-center hydraulic systems. It succeeded earlier 6D105/6D108 variants and was eventually replaced by the SAA6D107E-1 series in newer PC200-8 and WA320-8 models.
Across its generation, the SA6D110-1R evolved through suffixes (A, C, D, etc.) to meet regional emissions standards while maintaining a robust mechanical fuel injection architecture. The machine remains critical in the used and parts market due to its widespread deployment in earthmoving and construction fleets. Its simple, durable design ensures high aftermarket support for cylinder kits, turbochargers, and overhaul components, making it a staple for independent rebuild shops and fleet operators seeking cost-effective powertrain solutions.
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 SA6D110-1R(S/N 54110-UP) specifications
Engine
| Model | SA6D110-1R |
| Series | 110 Series |
| Cylinders | 6 |
| Emissions Tier | Not documented for this exact serial range — verify with your dealer |
| Gross/Net Power | Not documented for this exact serial range — verify with your dealer |
Weights
| Operating Weight | Not documented for this exact serial range — verify with your dealer |
| Shipping Weight | Not documented for this exact serial range — verify with your dealer |
| Ground Pressure | Not documented for this exact serial range — verify with your dealer |
Dimensions
| Transport Length | Not documented for this exact serial range — verify with your dealer |
| Transport Width | Not documented for this exact serial range — verify with your dealer |
| Transport Height | Not documented for this exact serial range — verify with your dealer |
| Track Gauge | Not documented for this exact serial range — verify with your dealer |
| Ground Clearance | Not documented for this exact serial range — verify with your dealer |
Performance
| Travel Speed | Not documented for this exact serial range — verify with your dealer |
| Gradeability | Not documented for this exact serial range — verify with your dealer |
Service Capacities (Summary)
| Fuel Tank | Not documented for this exact serial range — verify with your dealer |
| Hydraulic System | Not documented for this exact serial range — verify with your dealer |
| Engine Oil | Not documented for this exact serial range — verify with your dealer |
| Cooling System | Not documented for this exact serial range — verify with your dealer |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
Komatsu SA6D110-1R(S/N 54110-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 SA6D110-1R(S/N 54110-UP) beyond the schedule
Predictive Maintenance & Fluid Analysis
Utilize Komatsu Oil Wear Analysis (KOWA) at every 500-hour interval to monitor engine wear metals (iron, copper, lead, aluminum) and contaminants (silicon, sodium). Check hydraulic fluid particle count and viscosity to detect pump or valve wear early. Monitor coolant pH and SCA concentration to prevent liner cavitation and corrosion. Track DEF levels and KDPF status via KOMTRAX telematics to anticipate regeneration cycles and prevent exhaust system damage. Early detection of fuel dilution or coolant intrusion in engine oil extends component life.
Corrective & Common Repairs
Address frequent SA6D110-1R issues by inspecting the mechanical fuel injection pump for leaks and verifying injector nozzle spray patterns. Replace worn turbocharger seals and check shaft play to prevent oil consumption and smoke. Inspect the air filter housing and intake manifold gaskets for air leaks that cause lean running and overheating. Check the water pump impeller for erosion and replace the thermostat if coolant temperatures fluctuate. Replace worn hydraulic O-rings and seals to prevent pressure loss in the closed-center system.
Overhaul & Rebuild Points
Perform inframe overhaul at 10,000-15,000 hours or when compression drops below specification. Replace piston rings, liners, and bearings using the SA6D110-1 inframe overhaul kit. Inspect the crankshaft for journal wear and the cylinder head for valve seat recession. Replace the timing gear set and camshaft if excessive wear is detected. Rebuild the hydraulic pump and swing motor if flow rates fall below 80% of original specs. Ensure all gaskets and seals are replaced during reassembly to maintain pressure integrity.
Seasonal & Environment Servicing
In cold climates, use Komatsu Super Coolant AF-NAC and low-viscosity engine oil (e.g., SAE 5W-30) to ensure cold starts. Drain water from the fuel separator daily to prevent ice formation in lines. In dusty environments, check the air filter restriction indicator more frequently and clean the radiator fins daily to prevent overheating. In high-humidity areas, inspect electrical connections for corrosion and check the battery electrolyte levels. Use Komatsu HO hydraulic oil in high-temperature applications to maintain viscosity and protect seals.
SA6D110-1R(S/N 54110-UP) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 07281-00197 | Clamp,(With Pre-Fuel Filter) | Fuel system service | Check fitment → |
| 600-311-9100 | Fuel Filter Ass'Y | Fuel system service | Check fitment → |
| 6138-71-6101 | Fuel Filter Ass'Y | Fuel system service | Check fitment → |
| (6138-71-6100) | Fuel Filter Ass'Y | Fuel system service | Check fitment → |
| 09637-02161 | Plate? Instruction,Air Cleaner (Double Element) | Air intake service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
SA6D110-1R(S/N 54110-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 internal abnormality | 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 |
| CA234 | Engine overspeed | Throttle calibration error, engine load cycle issue, or operator misuse | Verify throttle calibration and engine load cycle |
| CA441 | Battery voltage too low | Alternator or battery failure; voltage regulator issue | Replace the alternator or battery; check the voltage regulator |
| CA442 | Battery voltage too high | Alternator or battery failure; voltage regulator issue | Replace the alternator or battery; check the voltage regulator |
| CA122 | Intake air pressure high voltage | Intake pressure sensor malfunction or wiring issue | Verify the intake pressure sensor and wiring |
| CA123 | Intake air pressure low voltage | Sensor short or airflow restriction | Check for a sensor short or an airflow restriction |
| CA153 | Intake air temperature sensor error (high) | Sensor malfunction | Replace or test the IAT sensor |
| CA154 | Intake air temperature sensor error (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.
SA6D110-1R(S/N 54110-UP) attachments & work tools
Excavator Attachments
The SA6D110-1R engine powers the PC200-5 and PC200LC-5 series crawler excavators. Standard bucket capacities for this class typically range from 0.8 to 1.2 cubic meters, with heavy-duty configurations supporting up to 1.5 cubic meters. These machines utilize a standard quick-coupler system for bucket interchangeability and require auxiliary hydraulic lines for breakers or hammers.
Wheel Loader Attachments
The WA380-1 and WA420-1 wheel loaders are primary applications for this engine series. Bucket capacities generally range from 3.0 to 4.0 cubic meters for standard earthmoving tasks. The WA420-1LC variant supports larger configurations up to 4.5 cubic meters. Mounting systems use a standard lift-arm pin-on configuration with auxiliary hydraulics for grapples or mulchers.
Generator Set Options
The SA6D110-1R engine is configured for the EC210Z-1 and EG150-3 generator sets. These units provide 150 to 210 kVA output depending on the specific frame and alternator configuration. Factory guarding includes sound-attenuated canopies and integrated cooling systems designed for continuous duty cycles.
Hydraulic System Configurations
Excavator models employ a closed-center hydraulic system with load-sensing valves. Wheel loaders utilize a load-sensing system with priority valves for steering and implement control. Auxiliary hydraulic kits for work tools require specific flow rates and pressure ratings matched to the main pump output.
Engine Guarding and Options
Factory options include heavy-duty air cleaners for dusty environments and extended-range fuel filters. Cooling system configurations vary between standard and heavy-duty radiators depending on the ambient temperature rating of the specific machine model. Exhaust systems include spark arrestors for forestry or mining applications.
All SA6D110-1R(S/N 54110-UP) assemblies by section
Every catalogued assembly group for the Komatsu SA6D110-1R(S/N 54110-UP). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Accessory
Komatsu : Sa6d110-1r(S/N 54110-Up) : Accessory : Air Compressor
| 61***11 | Air Compressor Ass'Y,(See Fig.0711) | 1 |
| 61***12 | Air Compressor Ass'Y | 1 |
| DK***00 | Cylinder | 1 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Accessory : Air Compressor And Piping
| 01***20 | Bolt,(Large Capacity Type) (Std) | 1 |
| 01***16 | Bolt,(With Alternator Cover Type) | 1 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 1 |
Cooling System
Komatsu : Sa6d110-1r(S/N 54110-Up) : Cooling System : Corrosion Resistor And Piping
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 4 |
| 01***29 | Washer,Spring (Cold Weather Spec.) | 4 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Cooling System : Water Pump And Cooling Fan (For Bracket Mounting 25a Alternator) (Noise Suppression Spec. For Ec.)(#54110-60517)
| 01***16 | Bolt,(For Slag Handling) | 2 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 3 |
| 01***50 | Bolt | 1 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Cooling System : Water Pump And Cooling Fan (For Bracket Mounting 25a Alternator) (Noise Suppression Spec. For Ec.)(#60518-)
| 01***16 | Bolt, Mount Solenoid Valve | 2 |
| 01***50 | Bolt,(See Fig.A4010-C3w6) | 1 |
| 01***55 | Bolt, Mount Dryer To Bracket And Frame | 5 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Cooling System : Water Pump And Cooling Fan (For Bracket Mounting 25a Alternator) (Noise Suppression Spec.)(#54110-60517)
| 01***16 | Bolt,(For Slag Handling) | 2 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 3 |
| 01***50 | Bolt | 1 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Cooling System : Water Pump And Cooling Fan (For Bracket Mounting 25a Alternator) (Noise Suppression Spec.)(#60518-)
| 01***16 | Bolt, Mount Solenoid Valve | 2 |
| 01***50 | Bolt,(See Fig.A4010-C3w6) | 1 |
| 01***55 | Bolt, Mount Dryer To Bracket And Frame | 5 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Cooling System : Water Pump And Cooling Fan(#54110-60517)
| 01***16 | Bolt,(For Slag Handling) | 2 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 3 |
| 01***50 | Bolt | 1 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Cooling System : Water Pump And Cooling Fan(#60518-)
| 01***16 | Bolt, Mount Solenoid Valve | 2 |
| 01***50 | Bolt,(See Fig.A4010-C3w6) | 1 |
| 01***55 | Bolt, Mount Dryer To Bracket And Frame | 5 |
Cylinder Block
Komatsu : Sa6d110-1r(S/N 54110-Up) : Cylinder Block : Camshaft And Tappet
| 01***25 | Bolt,(Without Auto Priming System) | 2 |
| 01***20 | Bolt,(Forwarded Individually Parts) | 2 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 2 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Cylinder Block : Crankshaft
| 01***55 | Bolt,(For France Noise Suppression) | 6 |
| 01***45 | Bolt,Nylock | 1 |
| 01***50 | Bolt,(Europe Spec.) | 6 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Cylinder Block : Cylinder Block
| 01***30 | Bolt,(For France Noise Suppression) | 4 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 4 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 4 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Cylinder Block : Flywheel And Flywheel Housing
| 01***40 | Bolt,(Dust And Dirt Protection) | 9 |
| 01***45 | Bolt,(Cold Terrain Spec.) | 8 |
| 01***55 | Bolt,(For France Noise Suppression) | 4 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Cylinder Block : Front Cover And Gear(#54110-60517)
| 01***22 | Bolt,(Cold Terrain Spec.) | 4 |
| 01***25 | Bolt,(Without Auto Priming System) | 4 |
| 01***60 | Bolt,(Without Alternator Bracket) | 16 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Cylinder Block : Front Cover And Gear(#60518-)
| 01***20 | Bolt,(Forwarded Individually Parts) | 1 |
| 01***55 | Screw | 10 |
| 01***65 | Bolt,(For Alternator Bracket Mount) | 6 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Cylinder Block : Oil Pan
| 01***22 | Bolt,(Cold Terrain Spec.) | 29 |
| 01***25 | Bolt,(Without Auto Priming System) | 8 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 1 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Cylinder Block : Oil Pan (Cold Terrain Spec.)
| 01***22 | Bolt,(Cold Terrain Spec.) | 29 |
| 01***25 | Bolt,(Without Auto Priming System) | 8 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 1 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Cylinder Block : Piston And Connecting Rod
| 04***18 | Ring, Retaining | 12 |
| 61***10 | Bolt,Connecting Rod | 2 |
| 61***11 | Bolt,Connecting Rod | 2 |
Cylinder Head
Komatsu : Sa6d110-1r(S/N 54110-Up) : Cylinder Head : Air Cleaner And Mounting
| 01***25 | Bolt,(Without Auto Priming System) | 1 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***45 | Bolt,(For Suction? Reversible Fan) | 4 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Cylinder Head : Air Intake Manifold And After Cooler (1/2)(#54110-60517)
| 01***25 | Bolt,(Without Auto Priming System) | 6 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 8 |
| 01***25 | Stud | 5 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Cylinder Head : Air Intake Manifold And After Cooler (1/2)(#60518-)
| 01***25 | Stud | 5 |
| 01***20 | Bolt,(Forwarded Individually Parts) | 4 |
| 01***25 | Bolt - Relay Mounting | 2 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Cylinder Head : Air Intake Manifold And After Cooler (2/2)(#54110-60517)
| 01***20 | Bolt | 2 |
| 01***25 | Bolt,(Without Auto Priming System) | 6 |
| 01***35 | Bolt,(Without Auto Priming System) | 2 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Cylinder Head : Air Intake Manifold And After Cooler (2/2)(#60518-)
| 01***14 | Bolt - Plate Mounting | 2 |
| 01***20 | Bolt,(Forwarded Individually Parts) | 6 |
| 01***25 | Bolt - Relay Mounting | 2 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Cylinder Head : Cylinder Head
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 2 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 2 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Cylinder Head : Cylinder Head Cover
| 07***23 | Clamp - Hose | 1 |
| 07***00 | Clip | 1 |
| 07***30 | Clip | 1 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Cylinder Head : Exhaust Manifold And Turbocharger
| 01***60 | Bolt (M10-1.50x60) | 1 |
| 01***00 | Bolt (M10-1.50x100) | 9 |
| 01***15 | Bolt | 2 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Cylinder Head : Muffler And Mounting
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 1 |
| 01***40 | Bolt,(Dust And Dirt Protection) | 4 |
| 01***45 | Bolt,(For Suction? Reversible Fan) | 4 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Cylinder Head : Rocker Arm
| 01***80 | Bolt,(Shim 5 Pieces Over) | 2 |
| 01***06 | Nut, Regular Hexagon (M8-1.25) | 12 |
| 01***36 | Washer,Radio Controlled Slag Handling | 6 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Cylinder Head : Turbocharger
| 61***01 | Turbocharger Ass'Y,(T04b59-39) | 1 |
| GA***00 | Clamp | 3 |
| GA***01 | Bolt | 6 |
Electrical System
Komatsu : Sa6d110-1r(S/N 54110-Up) : Electrical System : Alternator (25a)
| 60***30 | Alternator A. (25a),(With Hardening Pulley) | 1 |
| KD***57 | Bearing,Ball? Front | 1 |
| KD***80 | Collar | 1 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Electrical System : Alternator (50a)
| 60***90 | Alternator A. (50a),(With Hardening Pulley) | 1 |
| SD***X0 | Washer | 1 |
| SD***X0 | Fan | 1 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Electrical System : Alternator Abd Mounting (25a) (Bracket Less Type)(#56997-)
| 01***45 | Bolt,(For Suction? Reversible Fan) | 1 |
| 01***35 | Bolt,(Cold Weather Spec.) | 1 |
| 01***40 | Bolt,(Shim 3-Piece) | 1 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Electrical System : Alternator And Mounting (25a) (Bracket Mounting Type)
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 1 |
| 01***70 | Bolt,(With Wear Guard) | 1 |
| 01***55 | Bolt | 1 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Electrical System : Alternator And Mounting (50a)
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 1 |
| 01***70 | Bolt,(With Wear Guard) | 1 |
| 01***55 | Bolt | 1 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Electrical System : Starting Motor (7.5kw)
| 60***50 | Starting Motor Ass'Y,(7.5kw) | 1 |
| KD***60 | Shift Lever Assembly | 1 |
| KD***40 | Spring,Spring | 4 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Electrical System : Starting Motor And Mounting (7.5kw)
Fuel System
Komatsu : Sa6d110-1r(S/N 54110-Up) : Fuel System : Additional Fuel Filter
| 07***12 | Gasket,Mechanical Pump Piping | 2 |
| 60***00 | Fuel Filter Ass'Y | 1 |
| 60***20 | Cartridge,Pref | 1 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Fuel System : Fuel Filter And Piping
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 1 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 2 |
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 2 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Fuel System : Fuel Injection Pump (Coupling)
| DK***20 | Plate | 1 |
| DK***00 | Coupling | 1 |
| DK***00 | Washer,Lock | 2 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Fuel System : Fuel Injection Pump (Feed Pump)
| DK***20 | Bolt, Joint | 1 |
| DK***20 | Pump,Priming | 1 |
| DK***00 | Guide | 2 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Fuel System : Fuel Injection Pump (Governor) (1/2)
| DK***20 | Guide Lever Ass'Y | 1 |
| DK***20 | Capsule,Spring | 1 |
| DK***00 | Adapter | 1 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Fuel System : Fuel Injection Pump (Governor) (2/2)
| DK***80 | Shim? 0.5mm | 0 |
| DK***00 | Washer,Spring | 1 |
| DK***20 | Capsule,Spring | 1 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Fuel System : Fuel Injection Pump (Pump) (1/2)
| 61***10 | Injection Pump Ass'Y | 1 |
| DK***20 | Bolt | 1 |
| DK***30 | Bearing | 0 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Fuel System : Fuel Injection Pump (Pump) (2/2)
| DK***00 | Seat,Spring | 6 |
| DK***40 | Shim? 0.50mm, Shim, 0.50mm; Was Dk029311-0040 | 0 |
| DK***00 | Seat,Spring | 6 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Fuel System : Fuel Injection Pump (Timer)
| DK***00 | Shim? 0.15mm | 0 |
| DK***20 | Flange | 1 |
| DK***40 | Shim? 0.20mm | 0 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Fuel System : Fuel Injection Pump And Piping
| 01***30 | Bolt | 3 |
| 01***70 | Bolt | 4 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 4 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Fuel System : Fuel Nozzle And Spill Pipe
| 01***55 | Bolt,(For Trimming Dozer) | 12 |
| 01***55 | Screw | 12 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 12 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Fuel System : Solenoid And Mounting
| 01***20 | Bolt | 4 |
| 01***16 | Bolt,(For Slag Handling) | 2 |
| 01***50 | Bolt - Torque Converter Totransmission Mounting | 2 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Fuel System : Water Separator
| 07***60 | O-Ring,(For Pc750?800?1800) (A2610) | 1 |
| 60***00 | Water Separator A.,(4d105-5h? 4d105-5t) | 1 |
| 60***60 | Plug,Drain (4d105-5h? 4d105-5t) | 1 |
Lubricating Oil System
Komatsu : Sa6d110-1r(S/N 54110-Up) : Lubricating Oil System : Lubricating Oil Cooler (Cold Terrain Spec.)(#54110-60517)
| 01***25 | Bolt,(Without Auto Priming System) | 7 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 2 |
| 01***35 | Bolt,(Without Auto Priming System) | 12 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Lubricating Oil System : Lubricating Oil Cooler (Cold Terrain Spec.)(#60518-)
| 01***20 | Screw | 6 |
| 01***25 | Bolt,(With Corrosion Resistor) | 3 |
| 01***30 | Bolt,(Water Separator Spec.) | 12 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Lubricating Oil System : Lubricating Oil Cooler(#54110-60517)
| 01***25 | Bolt,(Without Auto Priming System) | 5 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 2 |
| 01***35 | Bolt,(Without Auto Priming System) | 16 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Lubricating Oil System : Lubricating Oil Cooler(#60518-)
| 01***20 | Screw | 4 |
| 01***25 | Bolt,(With Corrosion Resistor) | 3 |
| 01***30 | Bolt,(Water Separator Spec.) | 16 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Lubricating Oil System : Lubricating Oil Filter And Mounting
| 01***70 | Bolt | 1 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 1 |
| 01***55 | Bolt,(For Suction? Reversible Fan) | 2 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Lubricating Oil System : Lubricating Oil Piping(#54110-60517)
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 1 |
| 01***40 | Bolt,(For Position Fixing) | 1 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Lubricating Oil System : Lubricating Oil Piping(#60518-)
| 01***90 | Screw | 1 |
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 3 |
| 01***14 | Bolt | 2 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Lubricating Oil System : Lubricating Oil Pump And Suction Pipe
| 01***25 | Bolt,(Without Auto Priming System) | 3 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 1 |
| 01***45 | Bolt,(S6d155-4b) | 1 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Lubricating Oil System : Turbocharger Lubricating Oil Piping
| 01***22 | Bolt,(Cold Terrain Spec.) | 2 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 2 |
| 01***20 | Bolt,(Forwarded Individually Parts) | 2 |
Tool And Kit
Komatsu : Sa6d110-1r(S/N 54110-Up) : Tool And Kit : Gasket Kit
| 07***18 | O-Ring,(See Fig.1601-29?1602-17) | 1 |
| 07***21 | O-Ring,Water Piping | 1 |
| 07***70 | O-Ring,(For Intake Air Cover) | 1 |
Komatsu : Sa6d110-1r(S/N 54110-Up) : Tool And Kit : Gasket Kit (Cold Terrain Spec.)(#56997-)
| 07***18 | O-Ring,(See Fig.1601-29?1602-17) | 1 |
| 07***21 | O-Ring,Water Piping | 1 |
| 07***70 | O-Ring,(For Intake Air Cover) | 1 |
SA6D110-1R(S/N 54110-UP) serial number reference
The engine serial number plate is located on the engine block, typically on the left side near the injection pump or on a metal data plate affixed near the valve cover. Read the prefix as the leading digits of the serial number stamped on this plate; match these digits to the ranges above to identify the engine series and generation.
| Prefix | Identifies | Notes |
|---|---|---|
| 54110 | SA6D110-1R | Serial range 54110-UP. This prefix identifies the specific engine configuration variant within the SA6D110-1R family. |
| 50001 | SA6D110-1 (General) | Serial range 50001-UP. This prefix identifies the broader SA6D110-1 series generation. Note: SA6D110-1R is a specific variant within this series; verify with dealer if 50001-UP covers the -1R sub-variant. |
| 10001 | SA6D110-1 / S6D110-1 | Serial range 10001-UP. This prefix identifies the earliest generation of the 110 Series diesel engine. Note: This range likely predates the -1R specific variant; verify with dealer for -1R applicability. |
Frequently asked questions
What engine does the Komatsu SA6D110-1R use?
The SA6D110-1R is a 6-cylinder, turbocharged, direct-injection diesel engine from Komatsu's 110 Series. It typically produces 196-359 HP (147-268 kW) depending on the specific application and configuration.
What is the operating weight of machines powered by this engine?
Operating weight varies by configuration and attachment. For excavators in this class, weights range from 30,445 to 48,760 lbs (13,810-22,100 kg). Wheel loaders like the WA420-1 typically weigh between 34,000 and 35,000 lbs (15,422-15,876 kg).
What replaced the Komatsu SA6D110-1R engine?
The SA6D110-1R was succeeded by the SAA6D107E-1 series engine in newer Komatsu models such as the PC200-8 and WA320-8. The newer engines feature electronic control units (ECU) and meet stricter Tier 4/Stage III emissions standards.
What SA6D110-1R(S/N 54110-UP) owners discuss
What are the known powertrain and hydraulic behaviors for the Komatsu SA6D110-1R engine series?
What undercarriage or wear patterns are typical for machines equipped with the SA6D110-1R engine?
What are the engine quirks per the SA6D110-1R series?
What are common electrical and sensor issues for this engine?
What should be checked when buying a used machine with the SA6D110-1R engine (S/N 54110-UP)?
How does the SA6D110-1R engine differ from related variants like the SA6D102E or SA6D114-1?
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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