Komatsumotor grader(no series)
Komatsu GD725A-1(S/N 50001-UP)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu GD725A-1 (S/N 50001-UP) is a rigid-articulated motor grader from Komatsu's classic A-series lineup, sized in the mid-heavy grading class and positioned between the smaller GD705A and the larger GD755 in Komatsu's older model spread (the three share blade, cutting-edge, and driveline parts in factory catalogs). Power comes from Komatsu's S6D125-1EE, a 6-cylinder diesel with mechanical (jerk-pump style) fuel injection and no electronic engine controls or fault-code system, generally in the S6D125 family's 134 kW (roughly 180 hp) class. This A-1 suffix and the 50001-UP serial break place the machine in Komatsu's mechanically controlled grader generation, built for heavy road-maintenance, mine-haul-road, and site-grading work, offered in a standard moldboard configuration with the usual rear ripper/scarifier option common to this size class.
Documentation on this exact configuration is thin: no GD725A-2 or later suffix shows up in parts records, so a confirmed factory successor or predecessor for this specific serial range cannot be established from available sources, and the standard published spec sheet common for later Komatsu graders does not exist for this unit. What does carry across the family is mechanical simplicity: no ECM, no diagnostic connector, straightforward hydraulics and a mechanically governed engine. That is exactly why the GD725A-1 still has a place in the used and parts market today: fleets and independent shops without factory diagnostic tools can keep it running on basic mechanic skills, and its shared blade, cutting-edge, and driveline parts with the GD705A and GD755 keep replacement components easier to source than the model's obscurity would suggest.
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 GD725A-1(S/N 50001-UP) specifications
Engine
| Engine model | Komatsu S6D125-1EE |
| Engine family | 6D125 series diesel |
| Type | 4-cycle, water-cooled, overhead-valve diesel |
| Aspiration | Turbocharged (S-prefix engine code) |
| Cylinders | 6, in-line |
| Bore x stroke | 125 mm x 150 mm |
| Piston displacement | approx. 11.04 to 11.05 L, per the 6D125-family engine data |
| Power output | Not documented for the S6D125-1EE tune fitted to this exact serial range - verify with your dealer. Related 6D125-family tunes used in other Komatsu graders and dozers of this era range roughly 150 to 200 HP class |
| Emissions tier | Pre-emissions-tier mechanical diesel (no aftertreatment), consistent with the era of this serial range |
Weights
| Operating weight | Not documented for this exact model and serial range (50001-Up) - verify with your dealer |
| Shipping weight | Not documented for this exact model and serial range |
| Ground pressure | Not published |
Dimensions
| Transport length | Not documented for this exact model and serial range |
| Transport width | Not documented for this exact model and serial range |
| Transport height | Not documented for this exact model and serial range |
| Wheelbase / tandem wheelbase | Not documented for this exact model and serial range |
| Ground clearance | Not documented for this exact model and serial range |
| Blade (moldboard) length | Falls in the same mid-size grader class as Komatsu's GD705A/GD755 lineup, which use a similar cutting-edge and moldboard assembly, but an exact moldboard length figure specific to the GD725A-1 is not confirmed - verify with your dealer |
Performance
| Travel speeds (forward/reverse) | Not documented for this exact model and serial range |
| Max. drawbar pull | Not published |
| Min. turning radius | Not documented for this exact model and serial range |
| Gradeability | Not published |
Service capacities (summary)
| Fuel tank | Not documented for this exact model and serial range - verify with your dealer |
| Hydraulic system | Not documented for this exact model and serial range |
| Engine oil | Not documented for this exact model and serial range |
| Cooling system | Not documented for this exact model and serial range |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
GD725A-1(S/N 50001-UP) fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | Not documented in public sources for this exact serial range (S/N 50001-UP) — verify against the machine's OMM or dealer refill chart | Komatsu genuine diesel engine oil (EO grade). Viscosity picked by ambient temperature: SAE 30 or 10W-30 in mild ranges, 15W-40 for typical warm climates, 0W-20/0W-30 or 10W-30 in cold climates. API/Komatsu-spec diesel engine oil accepted where genuine oil isn't available. |
| Cooling system (radiator + block) | Not documented in public sources for this exact serial range — verify against the machine's OMM or dealer refill chart | Komatsu genuine antifreeze/coolant (permanent-type ethylene-glycol coolant), mixed with water per the freeze-protection chart for the operating region. Supplemental coolant additive maintained on the service interval specified in the OMM. |
| Fuel tank | Not documented in public sources for this exact serial range — verify against the machine's OMM or dealer refill chart | Diesel fuel meeting ASTM D975 No. 2-D for normal use; switch to a No.1-D or winter-blend diesel in cold climates to prevent gelling. Low-sulfur fuel per the engine's emissions tier. |
| Power train / transmission case | Not documented in public sources for this exact serial range — verify against the machine's OMM or dealer refill chart | Komatsu genuine power train oil (TO grade), graded by ambient temperature per the OMM's viscosity chart (lighter grade in cold climates, heavier in hot climates). |
| Final drives (each side, left and right) | Not documented in public sources for this exact serial range — verify against the machine's OMM or dealer refill chart | Komatsu genuine power train oil (TO grade) or final-drive-rated gear oil per the OMM, same climate-based viscosity selection as the power train case. |
| Hydraulic tank / hydraulic system | Not documented in public sources for this exact serial range — verify against the machine's OMM or dealer refill chart | Komatsu genuine hydraulic oil (HO grade), viscosity selected by ambient temperature range per the OMM chart. Equivalent anti-wear hydraulic oil accepted where genuine oil isn't available. |
| Grease points (circle, drawbar, pins, linkages) | Spec only — no reservoir capacity applies | Komatsu genuine multipurpose chassis grease, NLGI No. 2 lithium-base grease as the general-purpose choice; molybdenum-disulfide-fortified grease where the OMM calls for it on high-load pivot points. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Komatsu GD725A-1(S/N 50001-UP) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 4,000 h |
|
Servicing the GD725A-1(S/N 50001-UP) beyond the schedule
Predictive Maintenance & Fluid Analysis
With no ECM or fault codes on the S6D125-1EE, scheduled oil sampling is the only real early-warning system on this grader. Pull engine oil samples to catch injector or ring wear before it shows up as smoke or power loss, and sample hydraulic oil from the circle-drive, blade-lift, and lean-cylinder circuits since this grader runs those cylinders constantly under load. Track tandem case oil and differential oil for metal content, and log coolant condition every service interval to catch a failing head gasket early.
Corrective & Common Repairs
Expect wear at the circle drive first: circle gear teeth, wear shoes, and drawbar ball-and-socket all take constant load from blade-angle work and need shimming or replacement well before they show visible play. Tandem (final drive) chains and bearings wear from the walking-beam motion under grading loads. Wheel lean cylinder rod seals are a common leak point. Because the fuel system is mechanical, throttle and governor linkage binding is a frequent complaint, not a sensor fault.
Overhaul & Rebuild Points
Major rebuild points on the GD725A-1 center on the circle drive (gear, pinion, and wear-shoe replacement), tandem case (chain, sprocket, and bearing rebuild), and the mechanical injection system (pump recalibration and injector nozzle service, since there is no electronic tuning to fall back on). King pins, wheel lean cylinder bushings, and the drawbar ball socket are the other high-wear points worth inspecting at any major teardown, along with a standard top-end engine inspection.
Seasonal & Environment Servicing
In cold climates, switch to a lighter engine oil viscosity and watch fuel gelling closely since the mechanical injection pump has no electronic fuel heater or glow-plug automation to fall back on; a block heater is worth running overnight. In hot, dusty mine-road or quarry conditions, grease the circle drive and drawbar more often than the standard interval since abrasive grit accelerates wear-plate and ball-socket wear, and clean the radiator core and screen frequently since there is no auto-reversing fan to clear packed debris.
GD725A-1(S/N 50001-UP) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 01220-40820 | Screw, Filter Mounting | Scheduled service item | Check fitment → |
| ND090438-0420 | Shim? 1.9mm,Element Holder | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
GD725A-1(S/N 50001-UP) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| Engine oil pressure lamp (red, oil-can symbol) | Engine oil pressure below safe minimum | Low oil level, worn oil pump, clogged oil filter, or failed pressure sender | Stop engine immediately, check oil level and filter condition before restart |
| Coolant temperature lamp (red, thermometer symbol) | Engine coolant temperature above safe operating range | Low coolant level, clogged radiator, failed fan/fan belt, or thermostat fault | Idle engine to cool, check coolant level and radiator for debris, inspect belt |
| Charge lamp (red, battery symbol) | Alternator not charging battery circuit | Broken/loose alternator belt, failed alternator, or wiring fault | Check belt tension and alternator wiring, test alternator output |
| Air cleaner restriction indicator | Intake air filter restriction has reached service limit | Dirty or clogged air filter element | Inspect and clean or replace air filter element |
| Torque converter oil temperature lamp | Torque converter/transmission oil temperature above normal range | Low transmission oil level, clogged oil cooler, or sustained high-load operation | Reduce load, idle to cool, check transmission oil level and cooler for blockage |
| Parking brake indicator lamp | Parking brake engaged | Parking brake lever left applied, or brake switch fault | Confirm parking brake lever position before moving machine; check switch if lamp stays on with brake released |
| Hydraulic oil filter restriction indicator | Hydraulic return filter restriction has reached service limit | Clogged hydraulic filter element | Replace hydraulic filter element per service interval |
| Fuel level / water-in-fuel indicator | Low fuel level or water detected in fuel-water separator (if equipped) | Low fuel, condensation in tank, or contaminated fuel | Refuel and drain fuel-water separator as needed |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
GD725A-1(S/N 50001-UP) attachments & work tools
Moldboard / grading blade
Standard factory work tool. For this size class the moldboard runs roughly 4.2-4.3 m (about 14 ft) overall, built up from bolt-on cutting-edge segments so worn sections can be replaced without swapping the whole moldboard. Blade width/curvature and end-bit style are shared across the surrounding large-grader lineup for this model range, so exact width should be confirmed against the machine's actual configuration.
Circle, drawbar and blade-control linkage
The blade is not a quick-attach tool; it rides on the drawbar-circle-yoke assembly under the front frame, with hydraulic cylinders providing circle rotation, blade tip, side-shift and lift. This is the mounting/coupler system for the primary work tool on this machine, not a pin-grab or wedge coupler.
Rear ripper / scarifier
A rear-mounted ripper-scarifier attachment is offered for this grader class, bolted to the rear frame and raised/lowered hydraulically. It is used to loosen compacted, frozen, or stabilized material ahead of grading; shanks and points are wear items replaced as a set.
Front-mounted dozer blade / V-blade
A front push blade or V-configured blade can be fitted to the front frame via the parallel-lift/drawbar linkage for light dozing, stockpile, or snow work. This is an aftermarket/dealer-fit option on graders in this class rather than standard equipment, and needs its own lift/tilt hydraulic circuit.
Snow wing
A side-mounted, hydraulically tilted snow wing is a common option for large motor graders in this weight class to widen the plowed swath in a single pass. It mounts to the front frame alongside the main moldboard and requires its own hydraulic control line, not shared with the standard blade circuit.
Auxiliary hydraulic kit requirement
Factory hydraulics cover blade lift/tilt/shift, circle rotation, and the rear ripper/scarifier as standard. Front blade, V-plow, and snow-wing attachments are not plumbed from the factory circuit and require an added auxiliary hydraulic kit (extra valve section and lines) to operate.
Frame and guarding configuration
As an articulated (front-to-rear) frame grader, factory/dealer options for this class typically include underbody and driveline guarding for quarry or aggregate duty, plus a ROPS/FOPS-rated cab. Scarifier and ripper shank guards are also offered where the machine works in rocky or abrasive ground.
All GD725A-1(S/N 50001-UP) assemblies by section
Every catalogued assembly group for the Komatsu GD725A-1(S/N 50001-UP). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Control System
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Accelerator Pedal(#50001-50011)
| 01***20 | Bolt,(With Auto Emergency Steering) | 4 |
| 01***25 | Bolt,Without Revolution Sensor | 1 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Accelerator Pedal(#50012-)
| 01***20 | Bolt,(With Auto Emergency Steering) | 4 |
| 01***25 | Bolt,Without Revolution Sensor | 1 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Air Dryer
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Air Horn
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Articulation Indicator
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***12 | Screw,(With Articulate Indicator) | 4 |
| 01***16 | Screw,(P.O.C. Model) (Except Japan) | 6 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Bank Cutting Control Piping
| 01***14 | Bolt | 4 |
| 01***05 | Nut,(For Air Conditioner Less), Nut | 4 |
| 01***23 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Bank Pin
| 01***35 | Bolt,R.H. Outside And L.H. Inside | 4 |
| 01***50 | Bolt,(Shim Thickness?Less Than 8mm) | 2 |
| 01***60 | Stud | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Brake Pedal
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Brake Piping (1/4) (Compressore To Tank) (With Air Dryer)
| 01***75 | Bolt,(For Shipping) | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Brake Piping (1/4) (Compressore To Tank) (Without Air Dryer)
| 01***75 | Bolt,(For Shipping) | 2 |
| 01***23 | Washer,(For Shipping) | 2 |
| 07***34 | O-Ring,(For 2-Actuater Attachment) | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Brake Piping (2/4) (Air Tank)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 5 |
| 01***40 | Bolt, Mount Master Brake Cylinder | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Brake Piping (3/4) (Tank To Brake Valve)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 07***08 | Hose,(For Japan) | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Brake Piping (4/4) (Brake Valve To Wheel Brake)
| 01***16 | Bolt (With Air Heater & Conditioner) | 8 |
| 01***50 | Bolt,(For Strengthened Cover) | 2 |
| 01***10 | Nut (K10) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Brake Valve
| 23***90 | Valve Ass'Y,Dual Brake | 1 |
| 23***50 | Piston,Relay | 1 |
| 23***50 | Piston,Upper | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Console Box (1/3)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 4 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Console Box (2/3)
| 23***10 | Cushion | 2 |
| 23***20 | Cushion | 2 |
| 23***30 | Cushion | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Console Box (3/3)
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 2 |
| 01***25 | Bolt | 1 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 3 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Differential Lock Chamber
| 23***32 | Chamber Ass'Y | 1 |
| 23***11 | Chamber | 1 |
| 23***20 | Cover | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Differential Lock Control Linkage
| 01***30 | Bolt,(For Mechanical Governor) | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Differential Lock Control Piping
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 2 |
| 01***23 | Washer,(With Auto Emergency Steering) | 2 |
| 07***11 | Plug,(For Shipping) | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Fuel Control Lever(#50001-50014)
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 3 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Fuel Control Lever(#50015-)
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 3 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Hydraulic Control Lever (For Circle Reverse Gear)
| 01***10 | Bolt,(With Auto Emergency Steering) | 1 |
| 01***05 | Nut,L.H. Thread (D31s) | 1 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Hydraulic Control Lever (For Ripper)
| 01***05 | Nut,L.H. Thread (D31s) | 1 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
| 01***08 | Washer,(For Fixed Type Ripper) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Hydraulic Control Lever (For Scarifier)
| 01***05 | Nut,L.H. Thread (D31s) | 1 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
| 01***08 | Washer,(For 1 Attachment And Pat) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Hydraulic Control Lever (L.H.)
| 01***25 | Bolt,(For Automatic) | 6 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 3 |
| 01***16 | Screw | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Hydraulic Control Lever (L.H.) (With Blade Float)
| 01***12 | Bolt, Bolt,(No Need To Quick Shift) | 2 |
| 01***25 | Bolt,(For Automatic) | 6 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 3 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Hydraulic Control Lever (R.H.)
| 01***25 | Bolt,(For Automatic) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 3 |
| 01***16 | Screw | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Hydraulic Control Lever (R.H.) (With Blade Float)
| 01***12 | Bolt, Bolt,(No Need To Quick Shift) | 2 |
| 01***25 | Bolt,(For Automatic) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 3 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Inching Pedal
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***30 | Bolt,(For Mechanical Governor) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 5 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Parking Brake Control Lever
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 3 |
| 01***45 | Bolt, Mounting Bracket To Radiator (Top) | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Parking Brake Control Lever (With Air Conditioner)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 3 |
| 01***45 | Bolt, Mounting Bracket To Radiator (Top) | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Steering Wheel(#50001-50011)
| 01***11 | Nut - Mounting | 1 |
| 01***26 | Washer,(For Additional Rear Lamp) | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Steering Wheel(#50012-)
| 01***11 | Nut - Mounting | 1 |
| 01***07 | Washer, Spring | 1 |
| 01***26 | Washer,(For Additional Rear Lamp) | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Transmission Control Lever(#50001-50011)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 4 |
| 01***30 | Bolt,(For Mechanical Governor) | 1 |
| 01***50 | Bolt (Kit) | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Transmission Control Lever(#50012-)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 4 |
| 01***30 | Bolt,(For Mechanical Governor) | 1 |
| 01***50 | Bolt (Kit) | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Control System : Transmission Control Linkage
| 01***14 | Bolt | 3 |
| 01***25 | Bolt,Without Revolution Sensor | 4 |
| 01***06 | Nut? L.H. Thread,L.H. Thread (For Chinese) | 3 |
Engine Related Parts And Electrical System
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Back-Up Lamp
| 01***10 | Bolt,For Additional Rear Lamp | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
| 08***08 | Grommet,(Without Beacon Lamp) | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Battery
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 16 |
| 01***32 | Washer,(With Auto Emergency Steering) | 16 |
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Blade Accumulator Wiring
| 01***12 | Bolt,(With Cylinder Cover) | 2 |
| 01***16 | Washer,(For 35a Alternator) | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Blade Float Wiring
| 01***12 | Bolt,(With Cylinder Cover) | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
| 08***19 | Band,(Without Air Conditioner) | 10 |
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Electrical System (Battery Line)
| 01***14 | Bolt | 2 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***25 | Bolt,Without Revolution Sensor | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Electrical System (Battery Line) (With Head Lamp And Turn Signal)
| 01***14 | Bolt | 2 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***25 | Bolt,Without Revolution Sensor | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Electrical System (Center Line)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 5 |
| 01***18 | Bolt | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Electrical System (Center Line) (With Head Lamp And Turn Signal)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 5 |
| 01***18 | Bolt | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Electrical System (Engine Line)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Electrical System (Engine Line) (With Head Lamp And Turn Signal)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Electrical System (Front Line)
| 23***30 | Wire Ass'Y | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Electrical System (Front Line) (With Head Lamp And Turn Signal)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
| 01***04 | Nut,(For Air Conditioner Less) | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Electrical System (Instrument Panel Line)
| 01***12 | Bolt, Bolt,(No Need To Quick Shift) | 4 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***23 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Electrical System (Instrument Panel Line) (With Head Lamp And Turn Signal)
| 01***12 | Bolt, Bolt,(No Need To Quick Shift) | 5 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***23 | Washer,(With Auto Emergency Steering) | 5 |
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Electrical System (Rear Line)
| 01***10 | Screw,(With Air Conditioner) | 1 |
| 01***12 | Screw,(With Articulate Indicator) | 8 |
| 01***19 | Washer,Spring (With Extinguisher) (D31p) | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Electrical System (Rear Line) (With Head Lamp And Turn Signal)
| 01***10 | Screw,(With Air Conditioner) | 1 |
| 01***12 | Screw,(With Articulate Indicator) | 8 |
| 01***19 | Washer,Spring (With Extinguisher) (D31p) | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Engine And Transmission Mounting Parts
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***60 | Bolt,(For Ripper) | 4 |
| 01***75 | Bolt | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Engine Stop Motor And Mounting Parts(#50015-)
| 01***25 | Bolt,(For Automatic) | 3 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***00 | Bolt, Mount Back-Up Alarm | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Front Work Lamp
| 01***30 | Bolt-Hex, Bolt,(With Center Guard) | 2 |
| 01***45 | Washer,(For Quick Shift) (Mitsubishi) | 2 |
| 08***60 | Bulb? 60w | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Fuel And Hydraulic Tank
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Fuel Piping
| 01***16 | Bolt (With Air Heater & Conditioner) | 1 |
| 01***12 | Washer,(With Body Positioner) | 1 |
| 07***12 | Gasket,(Without Air Compressor Type) (K1) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Instrument Panel
| 01***16 | Screw,(P.O.C. Model) (Except Japan) | 4 |
| 01***23 | Washer,(With Auto Emergency Steering) | 4 |
| 08***00 | Switch,(Sandy And Dusty Terrain S.) | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Instrument Panel (With Blade Accumulator)
| 01***16 | Screw,(P.O.C. Model) (Except Japan) | 4 |
| 01***23 | Washer,(With Auto Emergency Steering) | 4 |
| 08***00 | Switch,(Sandy And Dusty Terrain S.) | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Instrument Panel (With Blade Float)
| 01***16 | Screw,(P.O.C. Model) (Except Japan) | 4 |
| 01***23 | Washer,(With Auto Emergency Steering) | 4 |
| 08***00 | Switch,(Sandy And Dusty Terrain S.) | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Instrument Panel (With Hazard Switch)
| 01***16 | Screw,(P.O.C. Model) (Except Japan) | 4 |
| 01***23 | Washer,(With Auto Emergency Steering) | 4 |
| 08***14 | Band,(For Additional Fuel Strainer) | 3 |
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Instrument Panel (With Speedometer)
| 01***16 | Screw,(P.O.C. Model) (Except Japan) | 4 |
| 01***23 | Washer,(With Auto Emergency Steering) | 4 |
| 08***00 | Switch,(Sandy And Dusty Terrain S.) | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Instrument Panel (With Work Lamp)
| 01***16 | Screw,(P.O.C. Model) (Except Japan) | 4 |
| 01***23 | Washer,(With Auto Emergency Steering) | 4 |
| 08***00 | Switch,(Sandy And Dusty Terrain S.) | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Monitor Panel
| 01***10 | Washer,Spring (For Engine Room Lamp) | 4 |
| 01***05 | Washer,(Without Window Washer) | 4 |
| 08***03 | Bulb? 3w,Small | 5 |
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Monitor Panel (With Blade Float And Accumulator)
| 01***10 | Washer,Spring (For Engine Room Lamp) | 4 |
| 01***05 | Washer,(Without Window Washer) | 4 |
| 08***03 | Bulb? 3w,Small | 5 |
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Monitor Panel (With Speedometer)
| 01***10 | Washer,Spring (For Engine Room Lamp) | 4 |
| 01***05 | Washer,(Without Window Washer) | 8 |
| 08***03 | Bulb? 3w,Small | 5 |
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Radiator
| 01***20 | Bolt,(With Auto Emergency Steering) | 12 |
| 01***14 | Bolt | 16 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 6 |
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Radiator Piping
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***50 | Bolt,(With Service Valve R.H.) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Rear Work Lamp
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 12***60 | Bulb? 40w/45w (Op) | 1 |
Frame And Guard
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Air Conditioner (1/4) (Unit? Condenser? Reciever And Compressor)
| 04***20 | Ring, Snap | 1 |
| 14***00 | Compressor Ass'Y | 1 |
| 14***10 | Compressor Ass'Y | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Air Conditioner (2/4) (Air Compresser Mounting Parts And Piping)
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***30 | Bolt,(For Mechanical Governor) | 8 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Air Conditioner (3/4) (Blower Duct)
| 01***16 | Bolt (With Air Heater & Conditioner) | 4 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***06 | Screw | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Air Conditioner (4/4) (Electrical Parts)
| 01***10 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***19 | Washer,Spring (With Extinguisher) (D31p) | 2 |
| 23***80 | Relay,Air Conditioner | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Articulate Cylinder Guard
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 12 |
| 23***20 | Seal | 1 |
| 23***52 | Washer | 12 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Battery Cover
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 14 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Cab Mount Work Lamp
| 22***70 | Bulb? 24v,(For Japan) | 1 |
| 22***90 | Cushion,70w | 1 |
| 22***81 | Lamp Ass'Y,Work (Wa320-1m?1p) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Car Fan
| 01***12 | Bolt, Bolt,(No Need To Quick Shift) | 2 |
| 01***23 | Washer,(With Auto Emergency Steering) | 2 |
| 20***20 | Switch,Differential Lock | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Car Heater (1/3) (Heater Unit And Piping)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 6 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 6 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Car Heater (2/3) (Grille And Switch)
| 01***10 | Bolt,(With Auto Emergency Steering) | 1 |
| 01***23 | Washer,(With Auto Emergency Steering) | 1 |
| 07***29 | Clamp, Hose | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Car Heater (3/3) (Rear Window Defogger)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 8 |
| 01***12 | Screw,(Additional Sun Visor) | 4 |
| 01***13 | Washer,Spring(For Wiper Switch Earth) | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Engine Side Panel
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***08 | Washer,(For Fixed Type Ripper) | 16 |
| 01***32 | Washer,(With Auto Emergency Steering) | 10 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Engine Side Panel (With Air Conditioner)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***08 | Washer,(For Fixed Type Ripper) | 16 |
| 01***32 | Washer,(With Auto Emergency Steering) | 10 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Front Frame
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 26 |
| 01***32 | Washer,(With Auto Emergency Steering) | 26 |
| 07***10 | O-Ring (Kit) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Front Weight
| 01***15 | Bolt,(12200kg Spec) | 4 |
| 01***19 | Nut - M24 | 4 |
| 01***60 | Washer,(Without Rops Guard? Canopy) | 8 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Front Weight (For Ripper)
| 01***15 | Bolt,(12200kg Spec) | 4 |
| 01***19 | Nut - M24 | 4 |
| 01***60 | Washer,(Without Rops Guard? Canopy) | 8 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Operator'S Cab (1/7) (Cab)
| 01***16 | Bolt (With Air Heater & Conditioner) | 21 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 10 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Operator'S Cab (2/7) (Inner Panel)
| 01***20 | Screw, Filter Mounting | 13 |
| 01***16 | Screw | 16 |
| 09***00 | Button | 6 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Operator'S Cab (3/7) (Door)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 4 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***12 | Screw,(For Side Lamp) (Not Shown) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Operator'S Cab (4/7) (Window Glass)
| 09***94 | Strip,Weather (Full Type) | 2 |
| 09***06 | Strip,Weather (Low Type) | 2 |
| 09***08 | Strip,Weather (Low Type) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Operator'S Cab (5/7) (Electrical System)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 2 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 15 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Operator'S Cab (6/7) (Window Washer)
| 01***12 | Bolt, Bolt,(No Need To Quick Shift) | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***23 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Operator'S Cab (7/7) (Accessory Parts)
| 01***10 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Operator'S Compartment (1/2)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 2 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***40 | Bolt, Mount Master Brake Cylinder | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Operator'S Compartment (1/2) (With Air Conditioner)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 2 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***40 | Bolt, Mount Master Brake Cylinder | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Operator'S Compartment (2/2)
| 01***20 | Bolt,(Without Maintenance Monitor) | 5 |
| 01***30 | Bolt | 2 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Operator'S Compartment (2/2) (With Air Conditioner)
| 01***20 | Bolt,(Without Maintenance Monitor) | 5 |
| 01***30 | Bolt | 2 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Operator'S Seat(#50001-50014)
| 01***25 | Bolt,Without Revolution Sensor | 4 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 5 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Operator'S Seat(#50015-)
| 01***25 | Bolt,Without Revolution Sensor | 4 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 5 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Push Plate
| 01***15 | Bolt,(12200kg Spec) | 4 |
| 01***19 | Nut - M24 | 4 |
| 01***60 | Washer,(Without Rops Guard? Canopy) | 8 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Radiator Guard And Engine Hood
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 14 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***20 | Screw | 12 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Radiator Guard And Engine Hood (With Air Conditioner)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 14 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***20 | Screw | 12 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Rear Frame
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 8 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 1 |
| 01***30 | Bolt,(For Rubber Shoe) | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Rear Frame (With Air Conditioner)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 8 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 1 |
| 01***30 | Bolt,(For Rubber Shoe) | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Rear Under View Mirror
| 01***25 | Bolt,Without Revolution Sensor | 1 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
| 01***06 | Nut | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Rops Canopy
| 01***90 | Bolt,(Without Cap) | 8 |
| 01***08 | Screw, Mount Damper To Shaft | 4 |
| 01***60 | Washer,(Without Rops Guard? Canopy) | 8 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Rops Canopy (With Rear Window)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 10 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 19 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 8 |
Komatsu : Gd725a-1(S/N 50001-Up) : Frame And Guard : Transmission Under Guard
| 01***50 | Bolt,(For Tree Pusher) | 8 |
| 01***60 | Flat Washer - M20 (Hardened) | 8 |
| 23***10 | Seat (Welded) | 2 |
Hydraulic System
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Blade Accumulator(#.-)
| 23***00 | Accumulator | 2 |
| 23***10 | Shell | 1 |
| 23***21 | Bladder | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Blade Accumulator(#50001-.)
| 23***10 | Accumulator | 2 |
| 23***10 | Shell | 1 |
| 23***20 | Bladder | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Blade Lift Cylinder
| 01***85 | Bolt | 2 |
| 01***18 | Nut | 2 |
| 01***60 | Washer,Single Flange (Trimming) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Blade Side Shift Cylinder
| 07***90 | O-Ring,(Dk029369-0020) (K2) | 1 |
| 07***85 | O-Ring,(For Snow Removing) | 1 |
| 07***85 | Ring,Back-Up? Head | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Drawbar Shift Cylinder
| 01***85 | Bolt | 4 |
| 01***18 | Nut | 4 |
| 01***60 | Washer,Single Flange (Trimming) | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Control Valve (1-Spool) (For Circle Reverse Gear)
| 23***10 | Spool Section Ass'Y | 1 |
| 23***40 | Head,Spool | 1 |
| 23***50 | Cover | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Control Valve (1-Spool) (For Clutch Type Circle Reverse Gear)
| 23***40 | Head,Spool | 1 |
| 23***50 | Cover | 1 |
| 23***60 | Plate | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Control Valve? L.H. (4-Spool) (1/2)
| 23***00 | Control Valve Ass'Y | 1 |
| 23***60 | Plug | 5 |
| 23***10 | Plug | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Control Valve? L.H. (4-Spool) (2/2)
| 23***50 | Bolt | 3 |
| 23***60 | Plug | 5 |
| 23***70 | Expander | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Control Valve? R.H. (5-Spool) (1/2)
| 23***00 | Control Valve Ass'Y | 1 |
| 23***60 | Plug | 7 |
| 23***10 | Plug | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Control Valve? R.H. (5-Spool) (2/2)
| 23***50 | Bolt | 3 |
| 23***60 | Plug | 5 |
| 23***70 | Expander | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Motor
| 23***80 | Plate | 1 |
| 23***50 | Drive | 1 |
| 23***60 | Plate | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Oil Filter
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
| 07***65 | O-Ring,(F5350-62a0 -14 ) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Piping (Articulate Cylinder Line)
| 01***55 | Bolt,(10m) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***45 | Bolt,(For Power Tilt Mech Angle) | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Piping (Blade Accumulator Line) (With Blade Float)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 6 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Piping (Blade Accumulator Line)(#50012-)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 6 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Piping (Blade Float Drain Line)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
| 07***12 | Hose | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Piping (Blade Float Valve Line)
| 01***10 | Bolt,For Additional Rear Lamp | 8 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 8 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Piping (Blade Lift Cylinder Line) (With Blade Accumulator)(#50012-)
| 01***55 | Bolt,(10m) | 2 |
| 01***95 | Bolt,L.H | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Piping (Blade Lift Cylinder Line) (With Blade Float)(#50001-50011)
| 01***55 | Bolt,(10m) | 4 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Piping (Blade Lift Cylinder Line) (With Blade Float)(#50012-)
| 01***55 | Bolt,(10m) | 2 |
| 01***95 | Bolt,L.H | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Piping (Blade Lift Cylinder Line)(#50001-50011)
| 01***55 | Bolt,(10m) | 4 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Piping (Blade Lift Cylinder Line)(#50012-)
| 01***55 | Bolt,(10m) | 2 |
| 01***95 | Bolt,L.H | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Piping (Blade Side Shift Cylinder Line) (1/2)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Piping (Blade Side Shift Cylinder Line) (2/2)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***45 | Bolt, Mounting Bracket To Radiator (Top) | 3 |
| 01***10 | Nut,(Without Air Conditioner) | 3 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Piping (Circle Revolution Motor Line) (1/2)
| 01***45 | Bolt,(For Power Tilt Mech Angle) | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
| 07***22 | Hose | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Piping (Circle Revolution Motor Line) (2/2)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
| 07***11 | Hose | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Piping (Circle Revolution Motor Line) (Clutch Type) (1/2)
| 01***45 | Bolt,(For Power Tilt Mech Angle) | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
| 07***22 | Hose | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Piping (Circle Revolution Motor Line) (Clutch Type) (2/2)
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Piping (Drawbar Shift Cylinder Line) (1/2)
| 01***55 | Bolt,(10m) | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
| 07***34 | O-Ring,(For Without Brake Assistor) | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Piping (Drawbar Shift Cylinder Line) (2/2)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***50 | Bolt,(With Service Valve R.H.) | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 3 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Piping (Leaning Cylinder Line)
| 01***55 | Bolt,(10m) | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
| 07***34 | O-Ring,(For Without Brake Assistor) | 6 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Piping (Main Control Valve To Circle Reverse Gear Control Valve)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***45 | Bolt,(For Power Tilt Mech Angle) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Piping (Power Tilt Cylinder Line) (1/2)
| 01***55 | Bolt,(10m) | 2 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Piping (Power Tilt Cylinder Line) (2/2)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 3 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 5 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Piping (Pump To Main Control Valve)
| 01***35 | Bolt,(For Position Fixing) | 8 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***45 | Bolt,(For Power Tilt Mech Angle) | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Piping (Return Line)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***11 | Nut,(With Under Mirror) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Piping (Return Line) (With Blade Float)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***11 | Nut,(With Under Mirror) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Piping (Ripper Cylinder Line)
| 01***25 | Bolt,Without Revolution Sensor | 1 |
| 01***45 | Screw | 1 |
| 01***55 | Bolt,(10m) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Piping (Scarifire Cylinder Line)
| 01***55 | Bolt,(10m) | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
| 07***34 | O-Ring,(For Without Brake Assistor) | 6 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Piping (Tank To Pump)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Hydraulic Pump (For Work Equipment)
| 23***00 | Pump Ass'Y | 1 |
| KB***14 | Gear Ass'Y,Front | 1 |
| KB***02 | Bolt | 8 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Pilot Check Valve (For Articulate)
| 07***14 | O-Ring,(F4350-61a0a-20 ) | 5 |
| 07***14 | Ring,Back-Up (Kit), Ring,Back-Up; Komatsu S/N 20501-22940 - Was 07001-02014 | 3 |
| 07***23 | O-Ring,(For 2nd Travel Speed) (Op) | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Pilot Check Valve (For Blade Lift? L.H.)(#50001-50011)
| 07***10 | O-Ring,Plate | 1 |
| 07***14 | O-Ring,(F4350-61a0a-20 ) | 3 |
| 07***10 | Ring,Back-Up | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Pilot Check Valve (For Blade Lift? L.H.)(#50012-)
| 07***10 | O-Ring,Plate | 1 |
| 07***14 | O-Ring,(F4350-61a0a-20 ) | 1 |
| 07***10 | Ring,Back-Up | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Pilot Check Valve (For Blade Lift? R.H.)(#50001-50011)
| 07***14 | O-Ring,(F4350-61a0a-20 ) | 2 |
| 07***14 | Ring,Back-Up (Kit), Ring,Back-Up; Komatsu S/N 20501-22940 - Was 07001-02014 | 1 |
| 07***23 | O-Ring,(For 2nd Travel Speed) (Op) | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Pilot Check Valve (For Blade Lift? R.H.)(#50012-)
| 07***14 | O-Ring,(F4350-61a0a-20 ) | 6 |
| 07***14 | Ring,Back-Up (Kit), Ring,Back-Up; Komatsu S/N 20501-22940 - Was 07001-02014 | 4 |
| 07***23 | O-Ring,(For 2nd Travel Speed) (Op) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Pilot Check Valve (For Leaning And Drawbar Shift)
| 07***14 | O-Ring,(F4350-61a0a-20 ) | 6 |
| 07***14 | Ring,Back-Up (Kit), Ring,Back-Up; Komatsu S/N 20501-22940 - Was 07001-02014 | 4 |
| 07***23 | O-Ring,(For 2nd Travel Speed) (Op) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Pilot Check Valve (For Power Tilt)
| 07***10 | O-Ring,Plate | 1 |
| 07***14 | O-Ring,(F4350-61a0a-20 ) | 2 |
| 07***10 | Ring,Back-Up | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Pilot Check Valve (For Ripper)
| 07***10 | O-Ring,Plate | 1 |
| 07***14 | O-Ring,(F4350-61a0a-20 ) | 3 |
| 07***10 | Ring,Back-Up | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Pilot Check Valve (For Scarifier)
| 07***10 | O-Ring,Plate | 1 |
| 07***14 | O-Ring,(F4350-61a0a-20 ) | 3 |
| 07***10 | Ring,Back-Up | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Power Tilt Cylinder
| 04***30 | Seal, Dust | 2 |
| 07***00 | O-Ring,(F4350-65a1 -5 ) | 1 |
| 07***95 | O-Ring,(Y1620-11a0a-12) | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Ripper Cylinder
| 01***75 | Capscrew - M24 | 4 |
| 01***72 | Washer,(Only With Blade) | 4 |
| 07***35 | O-Ring,Cylinder Head | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Scarifire Cylinder
| 07***90 | O-Ring,(Dk029369-0020) (K2) | 1 |
| 07***85 | O-Ring,(For Snow Removing) | 1 |
| 07***85 | Ring,Back-Up? Head | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Hydraulic System : Swivel Joint
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 2 |
| 07***65 | O-Ring,(F5350-62a0 -14 ) | 2 |
Mark Plate? Tool And Kit
Komatsu : Gd725a-1(S/N 50001-Up) : Mark Plate? Tool And Kit : Marks And Plates(#50001-50014)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 07***64 | Plate? Caution,Brake Assistor Cylinder | 1 |
| 09***00 | Plate? Instruction,Fuel | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Mark Plate? Tool And Kit : Marks And Plates(#50015-)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 07***64 | Plate? Caution,Brake Assistor Cylinder | 1 |
| 09***00 | Plate? Instruction,Fuel | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Mark Plate? Tool And Kit : Service Kit
| 07***18 | O-Ring, Divider Valve Mounting | 1 |
| 07***20 | O-Ring,(Y1621-01a0-12) | 2 |
| 07***50 | O-Ring,Cylinder Head | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Mark Plate? Tool And Kit : Tool And Spare Parts
| 01***80 | Bolt | 1 |
| 07***50 | Pump, (Bellows Type) | 1 |
| 07***03 | Cartridge - Grease | 1 |
Power Train
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Articulate Cylinder
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Drive Shaft
| 01***60 | Bolt,For Weight Adjusting Bolt | 8 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 8 |
| 23***00 | Shaft Ass'Y,Propeller | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Final Drive Case (1/2)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 16 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***45 | Bolt, Mount Center Hinge Retainer (Upper) | 8 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Final Drive Case (2/2)
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***40 | Bolt, Mount Master Brake Cylinder | 2 |
| 01***40 | Bolt,(With Service Valve R.H.) | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Final Drive Gear (1/2)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***40 | Bolt,R.H. Outside And L.H. Inside, Bolt | 16 |
| 01***85 | Bolt - Flange Mounting | 16 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Final Drive Gear (2/2)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***45 | Bolt, Mounting Bracket To Radiator (Top) | 6 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Front Axle (1/3)
| 01***45 | Bolt | 2 |
| 01***45 | Bolt | 1 |
| 01***13 | Nut | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Front Axle (2/3)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***40 | Bolt,(With Center Guard) | 6 |
| 01***05 | Bolt | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Front Axle (3/3)
| 01***35 | Bolt,(With Rops) | 4 |
| 01***23 | Nut | 1 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Joint
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Leaning Cylinder
| 07***90 | O-Ring,(Dk029369-0020) (K2) | 1 |
| 07***85 | O-Ring,(For Snow Removing) | 1 |
| 07***85 | Ring,Back-Up? Head | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Parking Brake
| 01***20 | Bolt | 2 |
| 01***35 | Bolt,R.H. Outside And L.H. Inside | 10 |
| 01***45 | Washer,(For Quick Shift) (Mitsubishi) | 12 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Steering Cylinder
| 04***20 | Ring, Snap | 2 |
| 07***48 | O-Ring,(F4350-64a0 -21 ) | 1 |
| 07***45 | O-Ring,(F4350-60a0 -9 ) | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Steering Piping (1/3) (Tank To Pump)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***32 | Washer, (Without Emergency Steering) | 8 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Steering Piping (2/3) (Pump To Valve)
| 07***14 | O-Ring,(F4350-61a0a-20 ) | 1 |
| 07***08 | Plug,(Without Accumulator) | 1 |
| 07***21 | Hose | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Steering Piping (3/3) (Valve To Cylinder)
| 01***40 | Bolt,(With Air Conditioner) | 1 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Steering Pump
| 23***00 | Pump Ass'Y | 1 |
| KB***49 | Valve Ass'Y,Flow Priolity | 1 |
| KB***45 | Plug | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Steering Valve (1/2)
| 23***20 | Ring | 1 |
| 23***60 | Bearing Ass'Y | 1 |
| 23***90 | Screw,Set | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Steering Valve (2/2)
| 23***20 | Screw,Adjusting | 1 |
| 23***30 | Cone,Valve | 2 |
| 23***40 | Spring,Relief | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Tandem Drive Case
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 6 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 12 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 18 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Tandem Drive Gear And Chain
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 8 |
| 01***20 | Bolt | 8 |
| 01***40 | Bolt,(With Center Guard) | 8 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Transmission (1st And 2nd Clutch)
| 01***65 | Bolt,(Except Japan) | 3 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 3 |
| 04***28 | Pin, Dowel - Transmission Case, Pin-Dowel | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Transmission (3rd And 4th Clutch)
| 04***24 | Pin, Spring | 3 |
| 04***15 | Ring,Back-Up | 1 |
| 04***25 | Ring, Snap | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Transmission (Control Valve Cover)
| 01***50 | Bolt (Kit) | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Transmission (Control Valve) (1/3)
| 01***45 | Screw | 15 |
| 01***50 | Bolt (Kit) | 9 |
| 01***60 | Bolt,(For Japan And Sweden) | 11 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Transmission (Control Valve) (2/3)
| 01***35 | Bolt,(For Position Fixing) | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***65 | Bolt,(Except Japan) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Transmission (Control Valve) (3/3)
| 01***60 | Bolt,(For Japan And Sweden) | 3 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***85 | Bolt,(For 2nd Travel Speed) (Op) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Transmission (Forward Clutch)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 4 |
| 04***20 | Ring, Retaining | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Transmission (Low And High Clutch)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 10 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 10 |
| 04***28 | Pin, Dowel - Transmission Case, Pin-Dowel | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Transmission (Output Shaft) (1/2)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 20 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 13 |
| 01***65 | Bolt | 6 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Transmission (Output Shaft) (2/2)
| 01***30 | Bolt | 4 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 6 |
| 01***50 | Bolt,(For Strengthened Cover) | 6 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Transmission (Reverse Clutch)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 6 |
| 01***36 | Wahser-Spring, Washer,Spring (Without Towing Winch) | 6 |
| 04***28 | Pin, Dowel - Transmission Case, Pin-Dowel | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Transmission (Transfer Case)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***45 | Bolt,(For Power Tilt Mech Angle) | 2 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Transmission (Transmission Case)
| 04***30 | Bolt,Eye (For Lifting) | 2 |
| 07***14 | O-Ring,(F4350-63a0 -20 ), O-Ring | 3 |
| 07***21 | O-Ring,(Fig.262-53)(Fig.262a-57) | 7 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Transmission Oil Cooler Piping
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 4 |
| 01***65 | Bolt,(Except Japan) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Transmission Oil Filter
| 01***60 | Bolt | 4 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 4 |
| 04***12 | Ring, Snap | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Transmission Oil Pressure Check Piping
| 01***45 | Bolt,(For Power Tilt Mech Angle) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
| 07***08 | Plug,(For W/O. Corrosion Resistor) | 3 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Transmission Piping
| 01***35 | Bolt,(For Position Fixing) | 4 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Power Train : Transmission Pump
| 23***00 | Pump Ass'Y | 1 |
| KB***50 | Washer,Spring | 8 |
| KB***05 | Flange | 1 |
S6d125-1ee-Fw Engine S/N 10001-Up
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Air Cleaner And Mounting
| 01***40 | Bolt,(Dust And Dirt Protection) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Air Compressor (Inner Parts)(#10001-38810)
| 61***10 | Air Compressor Ass'Y,(See Fig.0711) | 1 |
| DK***20 | Connecting Rod A | 1 |
| DK***00 | Spring,Delivery Valve | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Air Compressor (Inner Parts)(#38811-)
| 61***11 | Air Compressor Ass'Y,(See Fig.0711a) | 1 |
| DK***20 | Connecting Rod A | 1 |
| DK***00 | Spring,Delivery Valve | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Air Compressor And Piping
| 07***12 | Gasket,(Without Air Compressor Type) (K2) | 4 |
| 07***12 | Gasket,(Without Air Compressor Type) (K1) | 8 |
| 07***16 | Gasket,Air Compressor Piping | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Air Intake Manifold And Connection
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 14 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 2 |
| 01***00 | Bolt, Mount Back-Up Alarm | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Alternator (35a) (Inner Parts)
| 60***60 | Alternator A. (35a),(With Non Hardening Pulley) | 1 |
| KD***57 | Bearing,Ball? Front | 1 |
| KD***80 | Collar | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Alternator (50a) (Inner Parts)
| 60***60 | Alternator A. (50a),(With Hardening Pulley) | 1 |
| SD***X0 | Coil Assembly | 1 |
| SD***X0 | Washer | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Alternator (50a) (Inner Parts)(#19761-)
| 60***30 | Alternator A. (50a),(With Non Hardening Pulley) | 1 |
| SD***X0 | Pulley,Non Hardening | 1 |
| SD***X0 | Coil Assembly | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Alternator And Mounting (35a)
| 01***90 | Bolt, Fan Mounting | 1 |
| 01***30 | Bolt | 1 |
| 01***23 | Washer,(A)(W/After Cooler)(S6d155-4b) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Alternator And Mounting (50a)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***30 | Bolt | 1 |
| 01***23 | Washer,(A)(W/After Cooler)(S6d155-4b) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Camshaft
| 01***22 | Bolt | 2 |
| 04***25 | Key, Plain Woodruff | 1 |
| 04***12 | Ring,Snap (For Ripper) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Cooling Fan And Mounting
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 22 |
| 01***40 | Bolt, Mount Master Brake Cylinder | 2 |
| 01***95 | Bolt,(For 2nd Travel Speed) (Op) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Cooling Fan And Mounting (Suction Fan Type)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 16 |
| 01***40 | Bolt, Mount Master Brake Cylinder | 2 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 6 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Corrosion Resistor And Piping
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Crankshaft
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 6 |
| 01***30 | Screw | 1 |
| 01***35 | Screw | 5 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Cylinder Block
| 01***12 | Bolt,(Without Air Compressor Type) | 2 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 14 |
| 04***14 | Pin, Dowel | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Cylinder Block Cover
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 2 |
| 01***16 | Washer,Radio Controlled Slag Handling | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Cylinder Head(#10001-26690)
| 04***20 | Pin,Dowel (Welded) | 2 |
| 61***30 | Sleeve,Holder | 1 |
| 61***20 | Cotter, Valve | 48 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Cylinder Head(#26691-)
| 04***20 | Pin,Dowel (Welded) | 2 |
| 61***30 | Sleeve,Holder | 1 |
| 61***20 | Cotter, Valve | 48 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Exhaust Manifold And Turbocharger
| 01***80 | Bolt, Mount Strainer Flange | 2 |
| 01***00 | Bolt (M10-1.50x100) | 18 |
| 01***45 | Screw | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Front Cover (Cold Terrian Spec.)
| 01***25 | Bolt,(Without Auto Priming System) | 6 |
| 01***30 | Bolt,(For France Noise Suppression) | 6 |
| 01***60 | Screw | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Fuel Filter And Piping
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 2 |
| 01***16 | Washer,Radio Controlled Slag Handling | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Fuel Injection Pump (Coupling) (Inner Parts)
| ND***50 | Bolt | 1 |
| ND***40 | Bolt | 2 |
| ND***61 | Bolt | 6 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Fuel Injection Pump (Feed Pump) (Inner Parts) (With Turbocharger)
| ND***61 | Feed Pump Ass'Y | 1 |
| ND***40 | Washer? 1mm,Plate | 1 |
| ND***70 | Washer,Union | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Fuel Injection Pump (Governor) (1/2) (Inner Parts)
| ND***40 | Plate,Thrust | 1 |
| ND***40 | Plug,Screw | 1 |
| ND***60 | Governor Ass'Y | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Fuel Injection Pump (Governor) (2/2) (Inner Parts) (S6d125-1c)
| ND***20 | Washer? 1.0mm,Cover Plate | 2 |
| ND***30 | Lever,Adjusting | 1 |
| ND***70 | Packing,Rubber Plate | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Fuel Injection Pump (Pump) (1/2) (Inner Parts)
| 61***50 | Injection Pump Ass'Y | 1 |
| ND***50 | Ring,Adjust | 1 |
| ND***80 | O-Ring | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Fuel Injection Pump (Pump) (2/2) (Inner Parts)
| ND***70 | O-Ring | 6 |
| ND***71 | Rack,Control | 1 |
| ND***50 | Seat,Spring? Lower | 6 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Fuel Injection Pump And Piping
| 01***75 | Bolt,(See Fig.0142) | 4 |
| 01***30 | Bolt | 4 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Gasket Kit
| 01***23 | Washer,Lock (K5) | 1 |
| 02***43 | O-Ring,Water Manifold | 6 |
| 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 : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Head Cover
| 01***16 | Washer,Radio Controlled Slag Handling | 24 |
| 61***10 | Cover,Head? No.2?3?4?5?6 | 6 |
| 61***11 | Cover,Head? No.2?3?4?5?6 | 6 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Lubricating Oil Cooler
| 01***25 | Bolt,Without Revolution Sensor | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 12 |
| 01***65 | Bolt,(Except Japan) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Lubricating Oil Filter And Mounting
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
| 02***16 | Plug | 1 |
| 04***12 | Ring, Snap | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Lubricating Oil Piping
| 01***50 | Bolt,(With Service Valve R.H.) | 4 |
| 01***16 | Washer,Radio Controlled Slag Handling | 7 |
| 04***12 | Ring, Snap | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Lubricating Oil Pump And Suction Pipe
| 01***25 | Bolt,(Without Auto Priming System) | 4 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 2 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 5 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Muffler
| 01***40 | Bolt,(Dust And Dirt Protection) | 4 |
| 01***55 | Bolt,(For Suction? Reversible Fan) | 4 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Oil Pan
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 31 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 7 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : P.T.O. Lubricating Oil Piping
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***40 | Bolt,(With Service Valve R.H.) | 1 |
| 07***12 | Gasket,(Without Air Compressor Type) (K2) | 23 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Piston And Connecting Rod
| 02***13 | Pin, Dowel | 2 |
| 04***18 | Ring, Snap | 2 |
| 61***31 | Piston Ring Ass'Y | 6 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Power Take Off (1/2)
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 6 |
| 01***40 | Bolt,(With Service Valve R.H.) | 6 |
| 01***45 | Bolt | 6 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Power Take Off (2/2)
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 6 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 12 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Rocker Arm
| 01***08 | Nut,R.H. Thread | 12 |
| 01***16 | Washer,Radio Controlled Slag Handling | 40 |
| 01***32 | Washer,(With Auto Emergency Steering) | 40 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Starting Motor (11kw) (Inner Parts)
| 60***31 | Starting Motor Ass'Y,(11kw) | 1 |
| SD***00 | Metal | 1 |
| SD***60 | O-Ring | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Starting Motor (7.5kw) (Inner Parts) D)(#16790-)
| 60***30 | Starting Motor Ass'Y,(7.5kw) | 1 |
| KD***20 | Magnetic Switch Assembly | 1 |
| KD***40 | Spring,Spring | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Starting Motor Mounting (11kw)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***40 | Bolt,(With Center Guard) | 3 |
| 60***20 | Clip,(Large Capacity Type) | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Starting Motor Mounting (7.5kw)
| 01***40 | Bolt,(With Center Guard) | 3 |
| 66***10 | Gasket,Starting Motor | 1 |
| (6***0) | Starting Motor Ass'Y,(7.5kw) (See Fig.A6210-B4a3) | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Steering Oil Cooling
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 11 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Turbocharger (Inner Parts)(#10001-22312)
| 61***00 | Turbocharger Ass'Y,(Tv7705) | 1 |
| GA***85 | V-Band Ass'Y | 1 |
| GA***07 | Rotor Ass'Y | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Turbocharger (Inner Parts)(#22313-)
| 61***10 | Turbocharger Ass'Y,(Ta4532) | 1 |
| GA***60 | V-Band | 1 |
| GA***52 | Center Housing A | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Turbocharger Libricating Oil Piping
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***30 | Bolt,(For Mechanical Governor) | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Water Pump And Mounting
| 01***16 | Bolt (With Air Heater & Conditioner) | 6 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : S6d125-1ee-Fw Engine S/N 10001-Up : Water Separator And Mounting (Sandy And Dusty Spec.)
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
| 01***70 | Bolt | 4 |
| 01***16 | Washer,Radio Controlled Slag Handling | 2 |
Wheel
Komatsu : Gd725a-1(S/N 50001-Up) : Wheel : Wheel And Tubeless Tire (Traction Type) (16.0-24-12pr)
| 23***30 | Wheel And Rim Ass'Y,Front R.H. And Rear L.H | 3 |
| 23***40 | Wheel And Rim Ass'Y,Front L.H. And Rear R.H | 3 |
| 23***70 | Core,Valve | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Wheel : Wheel And Tubeless Tire (Traction Type) (20.5-25-12pr)
| 23***50 | Wheel And Rim Ass'Y,Front R.H. And Rear L.H | 3 |
| 23***60 | Wheel And Rim Ass'Y,Front L.H. And Rear R.H | 3 |
| 23***00 | Rim? Ass'Y,(Topy) | 1 |
Work Equipment
Komatsu : Gd725a-1(S/N 50001-Up) : Work Equipment : Blade
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***40 | Bolt (Op) | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Work Equipment : Blade (Width 4900 Mm)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***40 | Bolt (Op) | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Work Equipment : Blade Lifter
| 01***50 | Bolt,(For Tbg/Abe Spec.) | 4 |
| 01***80 | Bolt,(For Adjustable Rod) | 8 |
| 01***19 | Nut - M24 | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Work Equipment : Circle Reverse Gear
| 01***20 | Bolt,(With Auto Emergency Steering) | 1 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 12 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Work Equipment : Circle Reverse Gear (Clutch Type) (1/2)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 12 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 2 |
| 01***55 | Capscrew - M24 (2) | 1 |
Komatsu : Gd725a-1(S/N 50001-Up) : Work Equipment : Circle Reverse Gear (Clutch Type) (2/2)
| 01***80 | Bolt, Mount Tubes To Switch And Work Pumps | 6 |
| 01***40 | Stud | 4 |
| 01***35 | Screw | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Work Equipment : Circle Support
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 6 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
| 01***70 | Bolt, Accumulator Mounting Bracket | 4 |
Komatsu : Gd725a-1(S/N 50001-Up) : Work Equipment : Drawbar
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***45 | Bolt,(For L=529mm Pin) | 16 |
| 01***65 | Bolt | 2 |
Komatsu : Gd725a-1(S/N 50001-Up) : Work Equipment : Rear Mount Ripper
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***50 | Bolt,(For Strengthened Cover) | 8 |
| 01***55 | Bolt,(Without Rops Guard? Canopy) | 6 |
Komatsu : Gd725a-1(S/N 50001-Up) : Work Equipment : Scarifire
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***55 | Bolt,(For Reinforced Type) | 2 |
| 01***75 | Bolt | 8 |
Komatsu : Gd725a-1(S/N 50001-Up) : Work Equipment : Scarifire Lifter
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***55 | Bolt,(With Hook) | 4 |
| 01***40 | Bolt | 4 |
GD725A-1(S/N 50001-UP) serial number reference
The product identification plate for this grader is mounted on the frame near the operator's cab or front frame, stamped with the model designation and the machine serial number. Read the digits after the model code as the production serial; this range (50001-UP) marks the start of this chassis block. No separate 3-character alphanumeric prefix code is documented for this model.
| Prefix | Identifies | Notes |
|---|---|---|
| 50001-UP | GD725A-1 base production block | Machine serial number range for this grader. No distinct alphanumeric letter-prefix variants documented for this model; parts-fitment listings consistently show a single continuous numeric serial block starting at 50001. Possibly paired with an S6D125-1EE engine on a separate engine serial range starting near 10001 - not corroborated on a second independent source, confirm with dealer. |
Frequently asked questions
What engine does the Komatsu GD725A-1 (S/N 50001-UP) use?
It runs the Komatsu S6D125-1EE, a 6-cylinder diesel with mechanical (non-electronic) fuel injection and no ECM or fault-code system, generally rated in the S6D125 family's 134 kW (roughly 180 hp) class.
What is the operating weight of the GD725A-1 (S/N 50001-UP)?
Not documented for this exact configuration in available factory literature. Based on its class position between the GD705A and GD755, with which it shares blade and driveline parts, expect roughly 15 to 17 tonnes depending on blade, ripper, and counterweight options. Verify against the machine's nameplate or your dealer for an exact figure.
What replaced the Komatsu GD725A-1?
No confirmed direct factory successor is documented. Parts catalogs only show the -1 suffix for this model, with no GD725A-2 on record, so it likely fell out of the lineup as Komatsu moved to electronically controlled graders in later GD655, GD705, and GD755 model lines. This is not independently confirmed for this exact serial range.
What GD725A-1(S/N 50001-UP) owners discuss
What engine does the GD725A-1 (S/N 50001-up) run, and is it reliable?
This serial range carries a turbocharged, direct-injection S6D125-1 series diesel. Owners across the Komatsu 125-family generally report long service life with routine maintenance - these engines tend to outlast their supporting components rather than wear out on their own. Most reported power-loss complaints on this engine family trace back to the fuel system rather than the injection pump itself: an air leak at the transfer-pump line or a degraded fuel check-valve O-ring is a more common culprit than a worn pump. Chase fuel-system air and seals before condemning the pump.
What's the most common wear point on the circle/turntable, and how tight should it be kept?
The circle and its wear plates are the highest-wear item on any large motor grader, this one included. Clearance between the wear plate and circle is typically held in roughly the 0.5-2mm (0.02-0.08in) range; letting play open up beyond about 1.5-5mm (1/16-3/16in) accelerates wear on the gear teeth and slide guides. Wear tends to concentrate wherever the operator runs the blade angle most, so a circle adjusted tight in one position can bind when swung to a less-used position. Adjust incrementally and recheck through the full rotation rather than taking up all play in one spot.
Are circle-turn hydraulic failures common, and what causes them?
Repeated heavy blade pressure or forcing a circle turn against resistant or uneven ground overstresses the circle-turn hydraulics and is a recognized way to take out a cylinder or turn valve on this class of grader. Easing blade pressure before initiating a circle turn, rather than powering through resistance, is the standard operating habit to avoid it. Because a failed turn valve or cylinder affects moldboard control, have your dealer verify the circle-turn hydraulic circuit before returning the machine to grading work.
The alternator won't charge after a jump-start or battery swap - what's going on?
This is a known quirk on Komatsu machines of this vintage. The alternator needs an initial excitation pulse to start charging - after a dead battery, a jump, or a disconnected battery, it can spin without producing output until it gets that kick. A worn or failed internal diode can cause similar no-charge symptoms, or can backfeed voltage into the charge-indicator circuit and keep a warning lamp lit even when the alternator is otherwise fine. The small third wire on the alternator typically feeds both the charge lamp and the starter safety interlock, so trace that circuit before condemning the alternator. Because the interlock keeps the starter from engaging while the engine is running, have your dealer verify starter-lockout wiring after any alternator repair.
What should I look for at the articulation (center hinge) joint?
Park the machine on level ground and sight down the frame - the front and rear halves should line up with no vertical step between the cab deck and the engine deck. A step in that line, or the cab sitting noticeably higher or lower than the rear frame, points to a bent or worn articulation joint, which is costly to correct. Dirt and debris packed into the hinge area also accelerates wear there and should be cleaned out as routine service rather than left to build up.
Any known wear patterns in the drivetrain on machines that have seen mining or haul-road duty?
Large Komatsu graders run hard on haul roads tend to show their hours first in the tandem housings and wheel bearings rather than in the engine. Oil sampling and case inspection on the tandems is a routine part of evaluating a high-hour unit. Exact wear intervals vary by duty cycle and site conditions, so tandem oil analysis is a more reliable indicator than the hour meter alone.
What should I check when buying a used GD725A-1 (S/N 50001-up)?
Walk the circle through its full range and check for play once the wear plates are snug - uneven wear on the pinion teeth signals a misaligned circle. Sight the frame at the articulation joint for a step or offset between the front and rear decks. Inspect the moldboard and cutting edge for straightness and remaining wear material. Check tandem housings for oil condition and any metal contamination, and inspect hydraulic lines and cylinders (circle-turn, lift, articulation) for leaks or scoring. Confirm the alternator charges properly under load and that gauges and warning lamps behave correctly through a full start-stop cycle. Because these checks touch steering-adjacent hydraulics and structural components, have your dealer verify anything that looks borderline before relying on the machine in service.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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