Komatsu D50A-17(S/N 80001-UP)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu D50A-17 is a mid-size crawler dozer designed for heavy earthmoving and construction applications. Produced for serial numbers 80001 and up, this machine is powered by the Komatsu 6D125-1 inline-six engine delivering 124 hp at 1750 rpm. The operating weight ranges from 12,240 kg (26,985 lb) depending on the configuration. It features a direct drive transmission with five forward and four reverse gears. The D50A-17 succeeded the D50A-16 and is part of the broader D50 series lineage, which includes the D50P-17 and D53A-17 variants. Configurations typically include standard blade setups with 39 shoes per side and 18-inch track shoes.
Across the D50 series generations, Komatsu refined the powertrain efficiency and undercarriage durability to meet evolving emissions and productivity standards. The D50A-17 matters in the used and parts market because its 6D125-1 engine and direct drive transmission are robust, long-lasting components with high aftermarket support. The machine's modular design allows for extensive rebuild, making it a cost-effective option for fleet managers seeking reliable mid-tier dozer capacity. Its widespread use in grading and light dozing ensures a steady supply of used units and compatible replacement parts.
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 D50A-17(S/N 80001-UP) specifications
Engine
| Model | 6D125-1 |
| Number of Cylinders | 6 |
| Displacement | 673.8 cu in (11041.6 cc) |
| Gross Power | 92.5 kW (124 hp) |
| Power Measured @ | 1750 rpm |
Weights
| Operating Weight | 26984.6 lb (12240.0 kg) |
Dimensions
| Length w/ Blade | 15.64 ft (4765 mm) |
| Width Over Tracks | 7.68 ft (2340 mm) |
| Height To Top Of Cab | 9.52 ft (2900 mm) |
| Length Of Track On Ground | 7.22 ft (2200 mm) |
| Ground Clearance | 1.04 ft (315 mm) |
| Track Gauge | 6.17 ft (1880 mm) |
| Standard Shoe Size | 18.12 in (460 mm) |
| Number Of Shoes Per Side | 39 |
| Number Of Track Rollers Per Side | 5 |
| Track Pitch | 175 mm (6.89 in) |
| Number Of Carrier Rollers Per Side | 2 |
Performance
| Transmission Type | DD |
| Number Of Forward Gears | 5 |
| Number Of Reverse Gears | 4 |
Blades
| Standard Blade Width | 12.3 ft (3745 mm) |
| Standard Blade Height | 34.5 in (875 mm) |
Service Capacities
| Fuel Capacity | 63.5 gal (240.35 L) |
| Cooling System Fluid Capacity | 11.1 gal (42.01 L) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
Komatsu D50A-17(S/N 80001-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 D50A-17(S/N 80001-UP) beyond the schedule
Predictive Maintenance & Fluid Analysis
Utilize KOWA oil analysis at every 500-hour interval to monitor engine wear metals and coolant contamination. Check hydraulic oil particle count and viscosity at 1000 hours to detect pump or valve wear early. Monitor coolant SCA levels at 500 hours to prevent liner cavitation in the 6D125-1 engine. Use KOMTRAX telematics to track load frequency and fuel burn, identifying inefficient operating cycles that accelerate fluid degradation. Adjust service intervals based on KOWA results rather than fixed hours if conditions permit.
Corrective & Common Repairs
Address frequent undercarriage wear on the 39-shoe track system by monitoring roller and sprocket clearance. Replace hydraulic return filters promptly to prevent contamination of the pilot control system. Inspect the 6D125-1 engine fuel injection timing if power drops or smoke increases. Check final drive oil for metal shavings indicating gear wear. Repair hydraulic hose leaks at pivot points to maintain blade and ripper responsiveness. Replace worn cutting edges and end bits to maintain blade efficiency and reduce frame stress.
Overhaul & Rebuild Points
Plan major engine overhaul around 10,000-12,000 hours based on compression and oil consumption trends. Rebuild final drives when oil changes reveal excessive gear wear or seal failure. Inspect the direct drive transmission clutch packs at 5,000-hour intervals for slippage. Overhaul the hydraulic pump and control valves if flow rates drop below specification. Replace track chains and sprockets when elongation exceeds limits to prevent derailment. Evaluate the undercarriage frame for cracks near the track rollers and carrier roller mounts.
Seasonal & Environment Servicing
In cold climates, use Komatsu Super Coolant AF-NAC to prevent freezing and ensure proper heat transfer. Check battery hold-down and terminals for corrosion in humid or coastal environments. Grease all pivot points more frequently in dusty conditions to prevent abrasive wear. Inspect air filter elements daily in high-dust areas and replace as needed. Drain fuel water separator more often in humid conditions to prevent microbial growth. Verify track tension in muddy or rocky terrain to prevent excessive wear and improve traction.
D50A-17(S/N 80001-UP) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 07281-00197 | Clamp,(With Pre-Fuel Filter) | Fuel system service | Check fitment → |
| 09019-08035 | Wrench,Filter (For Add. Fuel Filter) | Fuel system service | Check fitment → |
| 07000-02135 | O-Ring,Hydraulic Oil Filter | Hydraulic service | Check fitment → |
| 09655-00120 | Plate? Instruction,Hydraulic Oil Filter | Hydraulic service | Check fitment → |
| 07000-05155 | O-Ring,Hydraulic Oil Filter | Hydraulic service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
D50A-17(S/N 80001-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 the 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 |
| CA441 | Battery voltage too low | Alternator or battery failure; voltage regulator issue | Replace the alternator or battery; check the voltage regulator |
| AA10NX | Air cleaner clogging | Blocked air filter element | Replace the air filter |
| B@BCNS | Engine coolant overheating | Radiator blockage, fan belt failure, or low coolant level | Check radiator fins, fan belt, and coolant level |
| E10 | Engine controller power failure | ECM power connection loss, blown fuse, or ground wire fault | Inspect ECM power connections, fuses, or ground wires |
| CA234 | Engine overspeed | Throttle calibration error, engine load cycle issue, or operator misuse | Verify throttle calibration, engine load cycle, or operator misuse |
| 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 |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
D50A-17(S/N 80001-UP) attachments & work tools
Blades
The standard blade for the D50A-17 (S/N 80001-UP) is a semi-U (SU) type with a width of 3.76 m (12.3 ft) and a height of 0.88 m (34.5 in). Factory spec sheets for this serial range do not document VPAT (Variable Pitch Angle Tilt) availability or specific A-type blade configurations for this exact model.
Rippers
The provided sources do not list specific multi-shank or single-shank ripper options, weights, or capacities for the D50A-17 (S/N 80001-UP). The parts catalog for this serial range lists general work equipment but omits specific ripper model numbers or dimensions.
Winches
The sources do not document towing winch options or class fitment for the D50A-17 (S/N 80001-UP). The parts manual for this serial range does not list winch assemblies or related hydraulic pump specifications for winch operation.
Drawbars/Counterweights
The operating weight is listed as 12,240.0 kg (26,984.6 lb) in factory spec sheets. The sources do not provide specific data on drawbar configurations or optional counterweight weights for this serial range.
Cab/ROPS Guarding
The height to the top of the cab is 2.90 m (9.52 ft). The sources do not document specific forestry or waste configuration guarding options for the D50A-17 (S/N 80001-UP).
Hydraulic Arrangement
The transmission type is direct drive (DD) with 5 forward and 4 reverse gears. The sources do not provide specific details on hydraulic arrangement notes for front or rear tool connections for this serial range.
All D50A-17(S/N 80001-UP) assemblies by section
Every catalogued assembly group for the Komatsu D50A-17(S/N 80001-UP). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Engine Related Parts And Electrical System
Komatsu : D50a-17(S/N 80001-Up) : Engine Related Parts And Electrical System : Battery
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 8 |
Komatsu : D50a-17(S/N 80001-Up) : Engine Related Parts And Electrical System : Battery (Large Capacity)
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 8 |
Komatsu : D50a-17(S/N 80001-Up) : Engine Related Parts And Electrical System : Electrical System
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 7 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
Komatsu : D50a-17(S/N 80001-Up) : Engine Related Parts And Electrical System : Electrical System (Sandy And Dusty Terrain Spec.) (Except Japan)(#80718-)
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 5 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
Komatsu : D50a-17(S/N 80001-Up) : Engine Related Parts And Electrical System : Engine Mounting Parts
| 01***20 | Bolt | 1 |
| 01***50 | Bolt | 3 |
| 01***05 | Bolt | 2 |
Komatsu : D50a-17(S/N 80001-Up) : Engine Related Parts And Electrical System : Fuel Control Lever
| 01***30 | Bolt,(For Mechanical Governor) | 1 |
| 01***35 | Bolt,(For Position Fixing) | 1 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
Komatsu : D50a-17(S/N 80001-Up) : Engine Related Parts And Electrical System : Fuel Tank And Piping
| 01***12 | Bolt,(With Cylinder Cover) | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 3 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 10 |
Komatsu : D50a-17(S/N 80001-Up) : Engine Related Parts And Electrical System : Fuel Tank And Piping (With Fuel Strainer) (Except Japan)(#81449-)
| 01***25 | Bolt,Without Revolution Sensor | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 3 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 10 |
Komatsu : D50a-17(S/N 80001-Up) : Engine Related Parts And Electrical System : Instrument Panel
| 01***10 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***16 | Screw, Mount Parking Lights | 2 |
| 01***20 | Screw - Turn Signal And Parkinglight Mounting | 2 |
Komatsu : D50a-17(S/N 80001-Up) : Engine Related Parts And Electrical System : Instrument Panel (Sandy And Dusty Terrain Spec.) (Except Japan)(#80718-81012)
| 01***10 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***16 | Screw, Mount Parking Lights | 2 |
| 01***20 | Screw - Turn Signal And Parkinglight Mounting | 2 |
Komatsu : D50a-17(S/N 80001-Up) : Engine Related Parts And Electrical System : Instrument Panel (Sandy And Dusty Terrain Spec.) (Except Japan)(#81013-)
| 01***16 | Screw, Mount Parking Lights | 2 |
| 01***20 | Screw - Turn Signal And Parkinglight Mounting | 2 |
| 01***16 | Screw | 8 |
Komatsu : D50a-17(S/N 80001-Up) : Engine Related Parts And Electrical System : Radiator And Piping
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 60 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
Komatsu : D50a-17(S/N 80001-Up) : Engine Related Parts And Electrical System : Radiator Cover
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 21 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***05 | Bolt, Mount Hose Clip | 5 |
Komatsu : D50a-17(S/N 80001-Up) : Engine Related Parts And Electrical System : Radiator Cover (For Sandy Dusty Terrain Spec.) (Except Japan)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 27 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***05 | Bolt, Mount Hose Clip | 6 |
Guard
Komatsu : D50a-17(S/N 80001-Up) : Guard : Air Creaner Mounting And Connection (For Sandy Dusty Terrain Spec.) (Except Japan)(#80001-80717)
| 01***75 | Bolt,(For Adjusting) | 4 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 4 |
| 01***40 | Bolt,R.H. Outside And L.H. Inside, Bolt | 4 |
Komatsu : D50a-17(S/N 80001-Up) : Guard : Air Creaner Mounting And Connection (For Sandy Dusty Terrain Spec.) (Except Japan)(#80718-81012)
| 01***75 | Bolt,(For Adjusting) | 4 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 4 |
| 01***40 | Bolt,R.H. Outside And L.H. Inside, Bolt | 4 |
Komatsu : D50a-17(S/N 80001-Up) : Guard : Air Creaner Mounting And Connection (For Sandy Dusty Terrain Spec.) (Except Japan)(#81013-)
| 01***75 | Bolt,(For Adjusting) | 4 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 4 |
| 01***40 | Bolt,R.H. Outside And L.H. Inside, Bolt | 4 |
Komatsu : D50a-17(S/N 80001-Up) : Guard : Box And Floor
| 01***16 | Bolt,(For Slag Handling) | 2 |
| 01***25 | Bolt - Rear Guard Mounting | 12 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 3 |
Komatsu : D50a-17(S/N 80001-Up) : Guard : Canopy
| 01***35 | Bolt,(For Pedal Steering) | 8 |
| 01***50 | Screw | 4 |
| 01***40 | Bolt,R.H. Outside And L.H. Inside, Bolt | 8 |
Komatsu : D50a-17(S/N 80001-Up) : Guard : Drawbar (Lock Type)
| 01***80 | Bolt | 6 |
| 01***60 | Bolt (Itl) | 1 |
| 01***19 | Nut - M24 | 4 |
Komatsu : D50a-17(S/N 80001-Up) : Guard : Drawbar (With Angle Lake)
| 01***90 | Bolt (Kit) | 6 |
| 01***19 | Nut - M24 | 2 |
| 01***60 | Washer,(Without Rops Guard? Canopy) | 8 |
Komatsu : D50a-17(S/N 80001-Up) : Guard : Engine Hood And Extension (For Sandy Dusty Terrain Spec.) (Except Japan)(#80001-81012)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***40 | Bolt, Mount Master Brake Cylinder | 12 |
| 01***50 | Bolt,(With Service Valve R.H.) | 1 |
Komatsu : D50a-17(S/N 80001-Up) : Guard : Engine Hood And Side Cover
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 14 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 3 |
Komatsu : D50a-17(S/N 80001-Up) : Guard : Engine Hood And Side Cover (For Sandy Dusty Terrain Spec.) (Except Japan)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 14 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 3 |
Komatsu : D50a-17(S/N 80001-Up) : Guard : Equalizer Bar
| 01***16 | Bolt,(Sandy And Dusty Spec.) | 1 |
| 01***35 | Bolt | 2 |
| 01***55 | Bolt, Fuel Tank Mounting | 4 |
Komatsu : D50a-17(S/N 80001-Up) : Guard : Fender And Rear Cover
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 27 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 8 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 2 |
Komatsu : D50a-17(S/N 80001-Up) : Guard : Hitch
| 01***90 | Bolt (Kit) | 4 |
| 01***60 | Bolt (Itl) | 1 |
| 01***15 | Nut,(For Quick Shift) (Mitsubishi) | 1 |
Komatsu : D50a-17(S/N 80001-Up) : Guard : Marks And Plates (For Sandy Dusty Terrain Spec.) (Except Japan)
| 08***01 | Indicator,Dust (Japanese And English) | 1 |
| 09***00 | Plate? Safety,Inspection And Maintenance | 1 |
| 09***35 | Plate? Name,Machine (Limited Supply) | 1 |
Komatsu : D50a-17(S/N 80001-Up) : Guard : Marks And Plates (Japanese And English)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 08***01 | Indicator,Dust Indicator | 1 |
| 09***00 | Plate? Safety,Inspection And Maintenance | 1 |
Komatsu : D50a-17(S/N 80001-Up) : Guard : Marks And Plates (Japanese)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 08***01 | Indicator,Dust Indicator | 1 |
| 09***00 | Plate? Safety,Inspection And Maintenance | 1 |
Komatsu : D50a-17(S/N 80001-Up) : Guard : Operator'S Seat (Fixed Type)(#80001-82152)
| 01***16 | Bolt (With Air Heater & Conditioner) | 4 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 4 |
Komatsu : D50a-17(S/N 80001-Up) : Guard : Operator'S Seat (Fixed Type)(#82153-)
| 01***16 | Bolt (With Air Heater & Conditioner) | 4 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 8 |
Komatsu : D50a-17(S/N 80001-Up) : Guard : Operator'S Seat(#80001-82152)
| 01***16 | Bolt,(For Slag Handling) | 4 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 9 |
| 01***20 | Bolt,(Used When Towing Winch) | 4 |
Komatsu : D50a-17(S/N 80001-Up) : Guard : Operator'S Seat(#82153-)
| 01***16 | Bolt (With Air Heater & Conditioner) | 4 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 9 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 4 |
Komatsu : D50a-17(S/N 80001-Up) : Guard : Radiator Guard And Cylinder Support
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 6 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 1 |
| 01***60 | Bolt,(Shim Thickness?More Than 8mm) | 8 |
Komatsu : D50a-17(S/N 80001-Up) : Guard : Radiator Guard And Cylinder Support (For Mechanical Angle Power Tilt Dozer)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 1 |
| 01***60 | Bolt,(Shim Thickness?More Than 8mm) | 8 |
Komatsu : D50a-17(S/N 80001-Up) : Guard : Radiator Guard And Cylinder Support (For Sandy Dusty Terrain Spec.) (Except Japan)(#80718-)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 1 |
| 01***60 | Bolt,(Shim Thickness?More Than 8mm) | 8 |
Komatsu : D50a-17(S/N 80001-Up) : Guard : Seat Suspension (With Oil Damper)(#82153-)
| 01***10 | Nut,(Without Air Conditioner) | 4 |
| 01***16 | Washer,(With Water Separator) | 2 |
| 01***26 | Washer,Plain | 4 |
Komatsu : D50a-17(S/N 80001-Up) : Guard : Swing Drawber
| 01***50 | Bolt,(For Large Size Tire) | 4 |
| 01***65 | Bolt,(Without Rops Guard? Canopy) | 6 |
| 01***30 | Capscrew | 4 |
Komatsu : D50a-17(S/N 80001-Up) : Guard : Under Guard
| 01***30 | Bolt,(Not Used With Emergency Str.) | 6 |
| 01***40 | Bolt,(With Center Guard) | 8 |
| 01***45 | Bolt,(For Travel Motor) (Not Show) | 6 |
Main Clutch And Transmission
Komatsu : D50a-17(S/N 80001-Up) : Main Clutch And Transmission : Counter Shaft And Gear
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***30 | Bolt,(For France Noise Suppression) | 4 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 2 |
Komatsu : D50a-17(S/N 80001-Up) : Main Clutch And Transmission : Gear Shift Fork
| 04***25 | Wire,Lock? Fork Set Bolt | 7 |
| 12***44 | Fork,1st And 2nd | 1 |
| 12***54 | Fork,3rd And 4th | 1 |
Komatsu : D50a-17(S/N 80001-Up) : Main Clutch And Transmission : Gear Shift Lever
| 01***40 | Bolt,(Dust And Dirt Protection) | 1 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 1 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
Komatsu : D50a-17(S/N 80001-Up) : Main Clutch And Transmission : Inertia Brake
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 3 |
| 01***08 | Nut, Regular Hexagon (M10-1.50) | 1 |
| 01***08 | Nut,R.H. Thread | 1 |
Komatsu : D50a-17(S/N 80001-Up) : Main Clutch And Transmission : Intermediate Shaft And Gear
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***30 | Bolt,(For France Noise Suppression) | 4 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 2 |
Komatsu : D50a-17(S/N 80001-Up) : Main Clutch And Transmission : Main Clutch And Steering Pump
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 8 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 8 |
| 07***00 | Pump Ass'Y | 1 |
Komatsu : D50a-17(S/N 80001-Up) : Main Clutch And Transmission : Main Clutch Booster
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***25 | Bolt,(Without Auto Priming System) | 1 |
| 01***30 | Bolt,(For France Noise Suppression) | 7 |
Komatsu : D50a-17(S/N 80001-Up) : Main Clutch And Transmission : Main Clutch Housing (1/2)
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 8 |
| 01***40 | Bolt,(Dust And Dirt Protection) | 9 |
| 01***50 | Bolt, Radiator To Frame | 1 |
Komatsu : D50a-17(S/N 80001-Up) : Main Clutch And Transmission : Main Clutch Housing (2/2)
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 12 |
| 01***08 | Nut,R.H. Thread | 1 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 12 |
Komatsu : D50a-17(S/N 80001-Up) : Main Clutch And Transmission : Main Clutch Lever
| 01***30 | Bolt,(For Mechanical Governor) | 3 |
| 01***80 | Bolt, Mount Tubes To Switch And Work Pumps | 1 |
| 01***07 | Nut,L.H. Thread (D31s) | 1 |
Komatsu : D50a-17(S/N 80001-Up) : Main Clutch And Transmission : Main Clutch Oil Piping
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 2 |
Komatsu : D50a-17(S/N 80001-Up) : Main Clutch And Transmission : Main Clutch Plate
| 01***25 | Bolt | 6 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***30 | Bolt,(For France Noise Suppression) | 7 |
Komatsu : D50a-17(S/N 80001-Up) : Main Clutch And Transmission : Main Shaft And Gear
| 01***16 | Bolt (Welded) | 2 |
| 01***22 | Bolt | 2 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 3 |
Komatsu : D50a-17(S/N 80001-Up) : Main Clutch And Transmission : Transmission Case And Filler
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
| 01***65 | Bolt,(For Suction Fan)(4d130-1d) | 4 |
| 01***50 | Bolt | 7 |
Komatsu : D50a-17(S/N 80001-Up) : Main Clutch And Transmission : Transmission Case Cover
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 13 |
Komatsu : D50a-17(S/N 80001-Up) : Main Clutch And Transmission : Transmission Control Lever
| 01***30 | Bolt,(For Mechanical Governor) | 1 |
| 01***35 | Bolt,(For Position Fixing) | 1 |
| 01***40 | Bolt,(With Air Conditioner) | 1 |
Komatsu : D50a-17(S/N 80001-Up) : Main Clutch And Transmission : Universal Joint
| 01***29 | Washer,Spring (Cold Weather Spec.) | 4 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 8 |
| 02***95 | Bolt | 4 |
Optional Parts
Komatsu : D50a-17(S/N 80001-Up) : Optional Parts : Angle Rake Blade
| 01***55 | Bolt - Mount Cage To Transmission Case | 4 |
| 01***14 | Nut | 4 |
| 01***42 | Washer,Spring (For Pedal Steering) | 1 |
Komatsu : D50a-17(S/N 80001-Up) : Optional Parts : Back-Up Alarm(#80001-82111)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
| 01***20 | Screw | 4 |
Komatsu : D50a-17(S/N 80001-Up) : Optional Parts : Back-Up Alarm(#82112-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***65 | Bolt,(With Canvas Or Rops Canopy) | 2 |
Komatsu : D50a-17(S/N 80001-Up) : Optional Parts : Engine Hood And Side Cover (For Water Separator Mounting)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 14 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 3 |
Komatsu : D50a-17(S/N 80001-Up) : Optional Parts : Head Guard
| 01***35 | Bolt, Hydraulic Tank Mounting | 24 |
| 01***45 | Bolt,(For Travel Motor) (Not Show) | 8 |
| 01***50 | Bolt,(For Tbg/Abe Spec.) | 8 |
Komatsu : D50a-17(S/N 80001-Up) : Optional Parts : Radiator Shutter
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
Komatsu : D50a-17(S/N 80001-Up) : Optional Parts : Reinforced Angle Blade
| 01***55 | Bolt - Mount Cage To Transmission Case | 4 |
| 01***14 | Nut | 4 |
| 01***42 | Washer,Spring (For Pedal Steering), Washer-Spring | 1 |
Komatsu : D50a-17(S/N 80001-Up) : Optional Parts : Reinforced Under Guard
| 01***30 | Bolt,(Not Used With Emergency Str.) | 6 |
| 01***50 | Bolt,(For Tbg/Abe Spec.) | 14 |
| 01***55 | Bolt,(With Hook) | 4 |
Komatsu : D50a-17(S/N 80001-Up) : Optional Parts : Rops Canopy
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 14 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 14 |
| 01***36 | Wahser-Spring, Washer,Spring (Without Towing Winch) | 14 |
Komatsu : D50a-17(S/N 80001-Up) : Optional Parts : Rops Mount
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***40 | Bolt,(With Center Guard) | 12 |
| 01***20 | Bolt | 6 |
Komatsu : D50a-17(S/N 80001-Up) : Optional Parts : Snow Plow
| 01***60 | Bolt,(Except Pll) | 2 |
| 01***50 | Bolt,(For Tree Pusher) | 8 |
| 01***15 | Nut (Op) | 2 |
Komatsu : D50a-17(S/N 80001-Up) : Optional Parts : Under Guard (With Hook)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 6 |
| 01***40 | Bolt,(With Center Guard) | 8 |
| 01***45 | Bolt,(For Travel Motor) (Not Show) | 6 |
Komatsu : D50a-17(S/N 80001-Up) : Optional Parts : Vandalism Protection
| 07***00 | Cap,(For Vandalism Protection) | 1 |
| 07***00 | Cap, Locking - Hydraulic Tank Oil Filler Cap | 1 |
| 07***00 | Cap,(For Vandalism Protection) | 1 |
Komatsu : D50a-17(S/N 80001-Up) : Optional Parts : Work Equipment Hose Guard
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 18 |
| 01***36 | Wahser-Spring, Washer,Spring (Without Towing Winch) | 20 |
Steering System And Final Drive
Komatsu : D50a-17(S/N 80001-Up) : Steering System And Final Drive : Bevel Gear And Shaft
| 01***10 | Bolt, Mount Flasher | 4 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 6 |
| 01***20 | Bolt | 4 |
Komatsu : D50a-17(S/N 80001-Up) : Steering System And Final Drive : Brake Lock Lever
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 9 |
| 01***45 | Bolt, Mounting Bracket To Radiator (Top) | 2 |
| 01***16 | Screw | 2 |
Komatsu : D50a-17(S/N 80001-Up) : Steering System And Final Drive : Brake Pedal And Linkage
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***50 | Bolt,(For Strengthened Cover) | 4 |
| 01***08 | Nut,L.H. Thread | 3 |
Komatsu : D50a-17(S/N 80001-Up) : Steering System And Final Drive : Control And Relief Valve Piping
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 2 |
| 01***60 | Bolt, Mount Tube To Switch Pump | 3 |
Komatsu : D50a-17(S/N 80001-Up) : Steering System And Final Drive : Final Drive Gear
| 01***30 | Bolt,(For Center Guard) | 16 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 12 |
| 01***13 | Nut | 2 |
Komatsu : D50a-17(S/N 80001-Up) : Steering System And Final Drive : Final Drive Housing And Sprocket
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 16 |
| 01***75 | Bolt,(For D65e) | 8 |
| 01***40 | Capscrew | 50 |
Komatsu : D50a-17(S/N 80001-Up) : Steering System And Final Drive : Final Drive Shaft
| 01***40 | Bolt,(Not Used With Cab) | 12 |
| 01***70 | Bolt,Rear Carrier (With Gumpad) | 24 |
| 01***55 | Bolt,(With Hook) | 8 |
Komatsu : D50a-17(S/N 80001-Up) : Steering System And Final Drive : Relief Valve
| 01***16 | Bolt (With Air Heater & Conditioner) | 6 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 6 |
Komatsu : D50a-17(S/N 80001-Up) : Steering System And Final Drive : Steering Brake (1/2)
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 10 |
| 01***25 | Bolt - Rear Guard Mounting | 4 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 12 |
Komatsu : D50a-17(S/N 80001-Up) : Steering System And Final Drive : Steering Brake (2/2)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Bolt | 2 |
| 01***08 | Nut, Regular Hexagon (M10-1.50) | 2 |
Komatsu : D50a-17(S/N 80001-Up) : Steering System And Final Drive : Steering Case And Main Frame
| 01***16 | Bolt,(For Slag Handling) | 2 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 2 |
| 01***25 | Bolt,(For Slag Handling) | 4 |
Komatsu : D50a-17(S/N 80001-Up) : Steering System And Final Drive : Steering Case And Main Frame (For Sandy Dusty Terrain Spec.) (Except Japan)(#81013-)
| 01***16 | Bolt,(For Slag Handling) | 2 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 2 |
| 01***25 | Bolt,(For Slag Handling) | 4 |
Komatsu : D50a-17(S/N 80001-Up) : Steering System And Final Drive : Steering Clutch
| 01***12 | Screw | 2 |
| 01***10 | Nut (K10) | 2 |
| 06***17 | Bearing | 2 |
Komatsu : D50a-17(S/N 80001-Up) : Steering System And Final Drive : Steering Control Booster
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***60 | Bolt, Tube To Oil Cooler | 4 |
| 01***65 | Bolt, Mount Radiator To Frame (Bottom) | 2 |
Komatsu : D50a-17(S/N 80001-Up) : Steering System And Final Drive : Steering Control Valve
Komatsu : D50a-17(S/N 80001-Up) : Steering System And Final Drive : Steering Lever
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 13 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 10 |
Komatsu : D50a-17(S/N 80001-Up) : Steering System And Final Drive : Steering Lever (For Sandy Dusty Terrain Spec.) (Except Japan)(#81013-)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 13 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 10 |
Komatsu : D50a-17(S/N 80001-Up) : Steering System And Final Drive : Steering Lever Linkage
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 2 |
| 01***45 | Bolt, Mounting Bracket To Radiator (Top) | 2 |
Komatsu : D50a-17(S/N 80001-Up) : Steering System And Final Drive : Steering Oil Filter
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 4 |
| 07***10 | O-Ring,(F4350-62a0 -5 ), O-Ring; Komatsu S/N 22***01 & Abv - Was 07000-02010, O-Ring; Was 07000-02010 | 1 |
Komatsu : D50a-17(S/N 80001-Up) : Steering System And Final Drive : Steering Oil Piping (1/2)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***45 | Bolt,(For Power Tilt Mech Angle) | 3 |
Komatsu : D50a-17(S/N 80001-Up) : Steering System And Final Drive : Steering Oil Piping (2/2)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 10 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 2 |
Tool And Kit
Komatsu : D50a-17(S/N 80001-Up) : Tool And Kit : Body Sheet
| 13***70 | Awning,(Not Shown) | 1 |
Komatsu : D50a-17(S/N 80001-Up) : Tool And Kit : Cap And Overall
| 09***50 | Overall,(Special Order) | 1 |
| 09***50 | Cap And Overall Kit,(Except Japan) | 1 |
| 09***50 | Cap And Overall Kit | 1 |
Komatsu : D50a-17(S/N 80001-Up) : Tool And Kit : Service Kit
| 01***30 | Bolt | 1 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 1 |
| 01***16 | Washer,(With Water Separator) | 1 |
Komatsu : D50a-17(S/N 80001-Up) : Tool And Kit : Spare Parts (Except Japan)
| 07***75 | O-Ring,Steering Oil Filter | 1 |
| 07***80 | O-Ring,Hydraulic Oil Filter | 1 |
| 07***32 | O-Ring,Drain Plug? Main Clutch | 1 |
Komatsu : D50a-17(S/N 80001-Up) : Tool And Kit : Tool (Except Japan)
| 07***50 | Pump, (Bellows Type) | 1 |
| 07***03 | Cartridge - Grease | 1 |
| 07***45 | Nozzle, Grease Pump (Non-Flexible Type) | 1 |
Komatsu : D50a-17(S/N 80001-Up) : Tool And Kit : Tool (Except Japan) (For China)
Komatsu : D50a-17(S/N 80001-Up) : Tool And Kit : Tool (For Reversible Fan)
| 14***10 | Handle | 1 |
| 14***20 | Plate | 1 |
Komatsu : D50a-17(S/N 80001-Up) : Tool And Kit : Tool (For Sandy Dusty Terrain Spec.) (Except Japan)
| 07***50 | Pump, (Bellows Type) | 1 |
| 07***03 | Cartridge - Grease | 1 |
| 07***45 | Nozzle, Grease Pump (Non-Flexible Type) | 1 |
Track
Komatsu : D50a-17(S/N 80001-Up) : Track : Carrier Roller
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***45 | Bolt,(For 60ton Dump Body) | 16 |
Komatsu : D50a-17(S/N 80001-Up) : Track : Front Idler
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 12 |
| 01***40 | Bolt,(For Slag Handling) (For Usa) | 4 |
| 01***60 | Capscrew | 4 |
Komatsu : D50a-17(S/N 80001-Up) : Track : Recoil Spring
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 12 |
| 01***45 | Bolt,(For Slag Handling) | 12 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
Komatsu : D50a-17(S/N 80001-Up) : Track : Recoil Spring (For Reinforce)
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 12 |
| 01***45 | Bolt,(For Slag Handling) | 12 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
Komatsu : D50a-17(S/N 80001-Up) : Track : Track Frame
| 01***50 | Screw | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 8 |
| 01***30 | Bolt-Hex, Bolt,(With Center Guard) | 32 |
Komatsu : D50a-17(S/N 80001-Up) : Track : Track Roller(#80001-82480)
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 12 |
| 01***65 | Bolt - Battery Box | 40 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 12 |
Komatsu : D50a-17(S/N 80001-Up) : Track : Track Roller(#82481-)
| 01***65 | Capscrew - M16 X 2.00 X 90 | 40 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 40 |
| 07***55 | O-Ring,Front Accessory Drive | 2 |
Komatsu : D50a-17(S/N 80001-Up) : Track : Track Shoe (Lubricate Type)(#80001-82152)
| 01***22 | Nut? Shoe (Kit) | 296 |
| 07***30 | Plug,(Large) | 78 |
| 07***21 | Plug,(Small) | 78 |
Komatsu : D50a-17(S/N 80001-Up) : Track : Track Shoe (Lubricate Type)(#82153-)
| 07***30 | Plug,(Large) | 78 |
| 07***21 | Plug,(Small) | 78 |
| 13***17 | Track Shoe Ass'Y | 1 |
Komatsu : D50a-17(S/N 80001-Up) : Track : Track Shoe (Master Pin Type)(#80001-82152)
| 01***22 | Nut? Shoe (Kit) | 312 |
| 13***03 | Track Shoe Ass'Y | 1 |
| 13***04 | Track Shoe Ass'Y | 1 |
Work Equipment
Komatsu : D50a-17(S/N 80001-Up) : Work Equipment : Angle Blade
| 01***55 | Bolt - Mount Cage To Transmission Case | 4 |
| 01***14 | Nut | 4 |
| 02***70 | Bolt, Plow | 26 |
Komatsu : D50a-17(S/N 80001-Up) : Work Equipment : C-Frame
| 01***80 | Bolt, Mount Strainer Flange | 2 |
| 01***45 | Bolt | 16 |
| 01***45 | Screw | 2 |
Komatsu : D50a-17(S/N 80001-Up) : Work Equipment : Hydraulic Piping (Tilt Cylinder Line) (Dozer Side) (For Straight Tilt Dozer)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 11 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 10 |
| 01***36 | Wahser-Spring, Washer,Spring (Without Towing Winch) | 21 |
Komatsu : D50a-17(S/N 80001-Up) : Work Equipment : Straight Blade
| 01***80 | Bolt,(With Corrosion Resistor) | 2 |
| 01***65 | Bolt,(Used With Pin Puller) | 4 |
| 01***35 | Capscrew - M14 (1)/(2) | 4 |
Komatsu : D50a-17(S/N 80001-Up) : Work Equipment : Straight Frame
| 01***45 | Bolt | 16 |
| 01***40 | Screw | 2 |
| 01***60 | Flat Washer - M20 (Hardened) | 16 |
Work Equipment Control System
Komatsu : D50a-17(S/N 80001-Up) : Work Equipment Control System : Blade Control Lever
| 01***55 | Bolt | 1 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 4 |
Komatsu : D50a-17(S/N 80001-Up) : Work Equipment Control System : Blade Lift Cylinder
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***35 | Bolt,(Without Auto Priming System) | 4 |
| 01***50 | Bolt,(For Trimming Dozer) | 4 |
Komatsu : D50a-17(S/N 80001-Up) : Work Equipment Control System : Blade Tilt Cylinder (For Straight Tilt Dozer)
| 01***20 | Bolt,(With Auto Emergency Steering) | 1 |
| 01***50 | Bolt,(For Tbg/Abe Spec.) | 2 |
| 01***75 | Bolt | 4 |
Komatsu : D50a-17(S/N 80001-Up) : Work Equipment Control System : Hydraulic Control Valve (1/2)
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 2 |
| 01***40 | Bolt,(Dust And Dirt Protection) | 2 |
Komatsu : D50a-17(S/N 80001-Up) : Work Equipment Control System : Hydraulic Control Valve (2/2)
| 01***35 | Bolt, Mounting - Flywheel Housing End | 3 |
| 01***70 | Bolt, Spacer | 2 |
| 01***75 | Bolt,(For D57sr) | 2 |
Komatsu : D50a-17(S/N 80001-Up) : Work Equipment Control System : Hydraulic Piping (Tank To Lift Cylinder) (#80001-81914)(#80001-81914)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***45 | Bolt,(For Power Tilt Mech Angle) | 8 |
Komatsu : D50a-17(S/N 80001-Up) : Work Equipment Control System : Hydraulic Piping (Tank To Lift Cylinder) (#81915-)(#81915-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***45 | Bolt,(For Power Tilt Mech Angle) | 4 |
Komatsu : D50a-17(S/N 80001-Up) : Work Equipment Control System : Hydraulic Piping? Pump To Tank
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***45 | Bolt,(For Power Tilt Mech Angle) | 4 |
| 01***60 | Bolt, Mount Tube To Switch Pump | 4 |
Komatsu : D50a-17(S/N 80001-Up) : Work Equipment Control System : Hydraulic Pump
| 04***18 | Ring,Snap (Itl) | 1 |
| 07***62 | Seal,Oil (Itl) | 1 |
| 70***00 | Pump Ass'Y (Kar80) | 1 |
Komatsu : D50a-17(S/N 80001-Up) : Work Equipment Control System : Hydraulic Tank (1/2)
| 01***20 | Bolt,(Large Capacity Type) (Std) | 2 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 53 |
| 01***40 | Bolt,(Not Used With Cab) | 5 |
Komatsu : D50a-17(S/N 80001-Up) : Work Equipment Control System : Hydraulic Tank (2/2)
| 01***30 | Bolt,(Cold Terrain Spec.) | 1 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 16 |
| 01***30 | Bolt,(For France Noise Suppression) | 5 |
D50A-17(S/N 80001-UP) serial number reference
The PIN plate is located on the front frame casting, typically on the operator's left side near the radiator support. Read the prefix as the first three characters of the 17-character ISO PIN stamped on the emissions/export plate.
| Prefix | Identifies | Notes |
|---|---|---|
| 80001-UP | D50A-17 | Serial range 80001 and up. Engine: 6D125-1 or 6D125-2. Steering: Hydrostatic. Region: Export/Global. |
Frequently asked questions
What engine does the Komatsu D50A-17 use?
The Komatsu D50A-17 uses the Komatsu 6D125-1 inline-six diesel engine.
What is the operating weight of the Komatsu D50A-17?
The operating weight is approximately 12,240 kg (26,985 lb), varying by configuration.
What model replaced the Komatsu D50A-17?
The Komatsu D50A-18 succeeded the D50A-17 in the D50 series lineup.
What D50A-17(S/N 80001-UP) owners discuss
What is the engine model and gross power output for the Komatsu D50A-17(S/N 80001-UP)?
What are the typical undercarriage wear patterns and component counts for this series?
What are the common hydraulic behaviors and failure modes reported for this machine type?
What electrical or sensor issues are common in Komatsu machines of this era?
What specific items must be checked when buying a used D50A-17(S/N 80001-UP)?
What are the operating weight and dimensions for the D50A-17(S/N 80001-UP)?
What safety-critical verification is required for fuel injection timing adjustments?
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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