Komatsubulldozermedium (d40 - d75)
Komatsu D75A-1(S/N 50001-UP)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu D75A-1 (S/N 50001-Up) is a mid-size crawler dozer from Komatsu's mechanically governed TORQFLOW generation, sitting in the same driveline family as the D65A-8, D65A-11, D65E-8, D65P-8, D65P-11, and D65S-8 dozers. Power comes from the Komatsu S6D125-1FF turbocharged inline-six diesel (engine S/N 24781-Up), paired with a torque-converter powershift transmission and no electronic control module. Operating weight and overall dimensions are not published for this exact serial range; check the machine's nameplate or a dealer for confirmed figures. Komatsu offered this generation in a standard dozer configuration, with related swamp and loader variants carried under separate model numbers.
Across this TORQFLOW generation, Komatsu kept the core torque converter, transmission, and hydraulic pump architecture common between the D65 and D75 size classes, so the D75A-1 shares its torque converter pump, transmission/hydraulic pump, and hydraulic relief valve components with the D65A/D65E/D65P/D65S-8 and -11 dozers. That shared driveline is what keeps this machine relevant in the used and parts market today: its mechanically governed engine and hydraulically actuated powershift transmission are straightforward to rebuild without diagnostic electronics, and used units and parts machines from this generation remain a source of driveline components for the wider D65/D75-class fleet still working sites today.
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 D75A-1(S/N 50001-UP) specifications
Overview
| Model | Komatsu D75A-1, S/N 50001-UP |
| Machine type | Crawler tractor (bulldozer), track-type |
| Production era | Legacy Komatsu D75A-1 line; this S/N block (50001-UP) is a later production run within the D75A-1 series |
| Documentation status | This exact serial range is thinly documented in public spec databases; no dedicated spec-sheet listing was located for D75A-1 (S/N 50001-UP) specifically. Figures below are limited to what could be confirmed; gaps are marked as such rather than estimated. |
Engine
| Engine model | Komatsu S6D125-1FF diesel (confirmed pairing for S/N 50001-UP, with engine serial block starting at 24781-UP) |
| Configuration | 4-stroke, water-cooled, in-line 6-cylinder, aftercooled |
| Bore x stroke | 125 mm x 150 mm (4.92 in x 5.91 in) — S6D125 family figure |
| Displacement | 11.04 L (674 cu in) — S6D125 family figure |
| Gross power (family rating) | Approx. 134 kW (180 HP) — this is the general S6D125-1 family rating used across several Komatsu machines of the period; the exact governed rating fitted to the D75A-1 chassis is not confirmed in available literature |
| Emissions tier | Pre-emissions-regulation mechanical diesel, no electronic engine controls (era-appropriate for this serial range) |
Weights
| Operating weight (Std) | Not documented in publicly available sources for this serial range — verify with Komatsu dealer or the parts/operation manual |
| Operating weight (other configurations) | No LGP, XL, or swamp configuration weight data located for D75A-1; do not assume figures from the D75S loader or D65-series dozers, as these are separate product lines |
Dimensions
| Overall length, width, height | Not documented in accessible sources for this serial range |
| Blade width options | Not documented — blade type/width not confirmed for this S/N block |
| Track gauge | Not documented in accessible sources |
| Shoe width options | Not documented; undercarriage service parts (track shoes, rollers, sprockets, idlers) are known to be available for this model, but published shoe-width options were not found |
| Ground clearance | Not documented in accessible sources |
Performance
| Travel speed, forward/reverse (by gear) | Not documented in accessible sources for this serial range |
| Drawbar pull | Not documented in accessible sources |
| Gradeability | Not documented in accessible sources |
| Ground pressure | Not documented in accessible sources |
Blades
| Blade type(s) offered | Not confirmed for this serial range in available literature |
| Blade capacity | Not documented in accessible sources |
Service capacities
| Fuel tank | Not documented in accessible sources for this serial range |
| Hydraulic system | Not documented in accessible sources |
| Engine oil | Not documented in accessible sources |
| Cooling system | Not documented in accessible sources |
| Note | Parts crossover exists between D75A-1 and the Komatsu D65A-8/D65E-8/D65P-8/D65P-11 and D60F-8 dozer family for select hydraulic components (e.g. relief valves, water pumps), indicating the D75A-1 sits in a broadly similar size/parts class to the D65-8 generation. This is a parts-commonality inference only, not a confirmed shared spec sheet, and should not be used to fill in exact D75A-1 weight, dimension, or capacity figures. |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
D75A-1(S/N 50001-UP) fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | Not documented in publicly available sources for this exact serial range (S/N 50001-UP) — verify against the OMM refill table or with a Komatsu dealer. | Komatsu genuine engine oil (EO). The D75A-1 (S/N 50001-UP) runs a turbocharged S6D125-1-series inline-six diesel, the same engine family used across Komatsu's D65/D75-class TORQFLOW dozers of this generation. Viscosity graded by ambient temperature per Komatsu's standard chart: roughly 10W in cold climates down to about -20C (-4F), 30 or 10W-30 in temperate ranges, stepping up to 40 or 15W-40 above about 30C (86F). Use a diesel engine oil meeting Komatsu's service classification for this era (CD/CF-4 equivalent or later). |
| Cooling system | Not documented in publicly available sources for this exact serial range — verify against the OMM refill table. | Komatsu genuine permanent-type (ethylene-glycol) antifreeze/coolant, mixed to the ratio needed for the lowest expected ambient temperature. Plain water plus corrosion inhibitor only where freezing is not a risk. |
| Fuel tank | Not documented in publicly available sources for this exact serial range — verify against the OMM refill table. | ASTM No. 2-D diesel fuel for normal operation; No. 1-D diesel in cold climates below freezing to reduce wax/gelling risk. |
| Powershift transmission (TORQFLOW, incl. torque converter) | Not documented in publicly available sources for this exact serial range — verify against the OMM refill table. | Komatsu genuine powertrain oil (TO). The D75A-1 uses Komatsu's TORQFLOW powershift transmission: a torque converter feeding a hydraulically actuated, force-lubricated multiple-disc clutch/planetary gear set, the same basic layout and driveline hardware shared with the contemporary D65A/D65E/D65P/D65S TORQFLOW dozer line. Viscosity graded by ambient temperature the same way as engine oil (lighter grade in cold climates, heavier in hot). |
| Bevel gear case / steering clutch & brake compartment | Not documented in publicly available sources for this exact serial range — verify against the OMM refill table (Komatsu OMMs of this era often list this as a separate refill point from the main transmission case). | Komatsu genuine powertrain oil (TO), typically the same grade used in the transmission case on machines of this design generation. |
| Final drive (each side) | Not documented in publicly available sources for this exact serial range — verify against the OMM refill table; check level/fill per side individually. | Komatsu genuine powertrain/final-drive oil (TO), graded by ambient temperature per the same chart used for the transmission. |
| Hydraulic system / tank (blade and equipment circuit) | Not documented in publicly available sources for this exact serial range — verify against the OMM refill table. | Komatsu genuine hydraulic oil (HO), viscosity graded by ambient temperature — lighter grade for cold-climate startup, heavier for sustained hot-climate operation. |
| Pivot shaft / equalizer bar | Not documented as a separate oil-fill point in available sources for this serial range; TORQFLOW-generation Komatsu dozers of this class typically grease this point rather than oil-fill it — verify against the OMM lubrication chart. | Komatsu genuine multipurpose grease (see grease spec row) applied per the lubrication schedule, unless the OMM specifies an oil-bath equalizer bar for this serial range. |
| Grease points (track rollers, idlers, pins, linkages, etc.) | Per-point quantities not documented in available sources — apply per the OMM lubrication chart until purge/relief at each fitting. | Komatsu genuine multipurpose grease, NLGI Grade 2 lithium-based (G2-LI), for general chassis and pin points; molybdenum-disulfide-treated grease (G2-LI-M) where specified for heavy-load pivot pins. Softer/lower-temperature grease substituted in cold climates per Komatsu's standard ambient-temperature guidance (roughly down to -20C/-4F for standard NLGI 2, colder ranges call for a low-temperature-rated grease). |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Komatsu D75A-1(S/N 50001-UP) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 50 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 4,000 h |
|
Servicing the D75A-1(S/N 50001-UP) beyond the schedule
Predictive Maintenance & Fluid Analysis
The D75A-1's S6D125-1FF turbocharged inline-six runs on a mechanical fuel-injection pump and mechanical governor, so this machine carries no ECM or telematics feed. Predictive care leans on scheduled oil sampling: pull the engine oil, TORQFLOW torque converter/transmission oil, and final drive oil at every fluid change and send for lab analysis to catch bearing and clutch-pack wear early. Test coolant SCA concentration on the same interval, and log turbocharger boost and exhaust color by eye at each service, since no dash warning will flag drift on this generation.
Corrective & Common Repairs
Expect wear-driven repairs typical of this TORQFLOW generation: turbocharger shaft play from mechanical-injection soot loading, steering clutch and brake band wear from repeated pivot-turn operation, and fuel injection pump or nozzle drift that shows up as rough idle or smoke. On the undercarriage, track link and bushing wear plus sprocket tooth wear are the most common corrective jobs, mirroring the D65-family driveline this machine shares its transmission and hydraulic pump components with. Power-angle-tilt blade cylinder seal leaks are the next most frequent repair.
Overhaul & Rebuild Points
Major rebuild points center on the powertrain: torque converter and transmission clutch-pack overhaul once oil analysis shows metal contamination, final drive planetary gear and bearing inspection at case-oil change intervals, and engine top-end rebuild (liner, piston, valve) once compression or oil consumption drifts out of spec. Undercarriage rebuild covering track links, bushings, sprockets, and idlers typically arrives on the same cycle as the D65A-8/-11 family this machine shares its torque converter pump and hydraulic relief valve components with. Budget turbocharger reconditioning alongside the engine overhaul.
Seasonal & Environment Servicing
Cold starts on the mechanically governed S6D125-1FF benefit from a block heater or ether-assist kit and daily coolant SCA checks through winter, since there is no electronic cold-start strategy to compensate. Drain water and sediment from the fuel tank and water separator more often in humid or condensing conditions to protect the mechanical injection pump. In hot, dusty ground, shorten air cleaner element service and track tension checks, and regrease power-angle-tilt blade and ripper pivot points more often to keep dirt from working into the pins.
D75A-1(S/N 50001-UP) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 07281-00197 | Clamp,(With Pre-Fuel Filter) | Fuel system service | Check fitment → |
| 07000-02135 | O-Ring,Hydraulic Oil Filter | Hydraulic service | Check fitment → |
| 07000-02075 | O-Ring,Steering Oil Filter | Lubrication service | Check fitment → |
| 144-11-11330 | Gasket,Oil Filter | Lubrication service | Check fitment → |
| 08036-01414 | Clip,(For Add.Filter)(Except Japan) | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
D75A-1(S/N 50001-UP) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| Charge lamp (red) | Alternator not charging the battery circuit | Broken or slipping fan belt, faulty alternator, loose or corroded wiring connection | Stop and check fan belt tension, inspect alternator wiring, test alternator output |
| Engine oil pressure lamp (red) | Engine lubrication pressure has dropped below the safe limit | Low engine oil level, clogged oil filter, worn oil pump, oil leak | Stop engine immediately, check oil level and filter condition before restarting |
| Coolant temperature lamp (red) | Engine coolant temperature is above the normal operating range | Low coolant level, clogged radiator fins, slipping fan belt, faulty thermostat | Idle and let engine cool, check coolant level and radiator for debris, inspect fan belt |
| Torque converter oil temperature lamp (red) | Torque converter oil is overheating | Low torque converter oil level, clogged converter oil cooler, sustained high-load operation | Reduce load and let temperature drop, check torque converter oil level and cooler for restriction |
| Air cleaner restriction indicator | Air filter element is clogged, restricting intake airflow | Dusty operating conditions, dirty or saturated filter element | Clean or replace the air cleaner element, check for intake leaks |
| Preheat (glow) indicator lamp | Intake air heater is active for cold-start assist | Normal cold-weather starting function, not a fault | Wait for lamp to go out before cranking the engine |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
D75A-1(S/N 50001-UP) attachments & work tools
Blades
No factory blade spec sheet is published online for the D75A-1 (S/N 50001-UP). Komatsu's dozer line of this vintage generally offered straight (S), semi-U (SU), and angling (A) blade options across the mid-size class, but exact width, capacity, and which codes were factory-fitted to this serial range are not confirmed in available sources. VPAT (variable pitch angle tilt) blades are a later Komatsu development for newer dozer generations and are not a fitment for this 50001-up era machine — verify against the dealer parts catalog for this serial range.
Rippers
No ripper spec sheet specific to the D75A-1 (S/N 50001-UP) was found. Dozers in this weight class typically offer a rear parallelogram ripper in either single-shank form for deep, low-volume penetration or multi-shank form for shallower high-volume ripping, but neither shank count nor tip weight is documented for this exact serial range in available sources. Confirm the ripper family and shank configuration against the machine's own parts catalog.
Winches
Published aftermarket winch compatibility charts for this class of Komatsu dozer skip the D75 size entirely, so no confirmed aftermarket towing-winch class is documented for this model from that source. A dealer- or factory-fit winch may have existed for this class and era, but no serial-specific documentation was found — check the parts catalog for a winch section before ordering.
Drawbars/counterweights
No drawbar or counterweight data specific to the D75A-1 (S/N 50001-UP) was found in available sources. On dozers of this era, rear drawbar hardware is normally listed as its own section in the factory parts book alongside ripper and winch mounting; confirm fitment against the parts catalog for this exact serial range rather than assuming compatibility from sibling models.
Cab/ROPS guarding
A cab guard section exists in the parts catalog for the related D75S-2 (S/N 1004-UP), but that is a different machine (crawler loader, different serial range) and its guard hardware should not be assumed to carry over to the D75A-1 dozer. No forestry- or waste-handling-specific guarding package for the D75A-1 (S/N 50001-UP) was found in available sources — verify with the dealer parts catalog for this exact serial range.
Hydraulic arrangement
The D75A-1 shares core hydraulic work-equipment components — including its control valve and relief valve — with sibling models D60E-8, D65A-8, D65E-8, and D65P-8/-11, pointing to a common front-blade hydraulic circuit design across this Komatsu dozer generation. No documentation of a dedicated rear (ripper/winch) hydraulic circuit specific to the D75A-1 was found; confirm whether rear work-equipment hydraulics were standard or optional for this serial range via the parts catalog.
All D75A-1(S/N 50001-UP) assemblies by section
Every catalogued assembly group for the Komatsu D75A-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 : D75a-1(S/N 50001-Up) : Control System : Brake Pedal
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***50 | Bolt,(For Strengthened Cover) | 4 |
| 01***08 | Nut,L.H. Thread | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Control System : Control And Relief Valve Piping
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***50 | Bolt,(With Service Valve R.H.) | 2 |
| 01***60 | Bolt, Mount Tube To Switch Pump | 3 |
Komatsu : D75a-1(S/N 50001-Up) : Control System : Decelerator Pedal
| 01***30 | Bolt,(For Mechanical Governor) | 1 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Control System : Fuel Control Lever
| 01***30 | Bolt,(For Mechanical Governor) | 1 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Control System : Oil Cooler Piping
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***60 | Bolt, Mount Tube To Switch Pump | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Control System : Parking Brake
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 3 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
| 01***45 | Bolt, Mounting Bracket To Radiator (Top) | 3 |
Komatsu : D75a-1(S/N 50001-Up) : Control System : Relief Valve
| 01***16 | Bolt (With Air Heater & Conditioner) | 6 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 6 |
| 07***20 | O-Ring,Relief Valve | 4 |
Komatsu : D75a-1(S/N 50001-Up) : Control System : Steering Clutch Piping(#50001-50253)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 13 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***50 | Bolt,(With Service Valve R.H.) | 4 |
Komatsu : D75a-1(S/N 50001-Up) : Control System : Steering Clutch Piping(#50254-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 10 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
Komatsu : D75a-1(S/N 50001-Up) : Control System : Steering Control 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 : D75a-1(S/N 50001-Up) : Control System : Steering Filter
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 3 |
| 01***36 | Washer,Radio Controlled Slag Handling | 3 |
Komatsu : D75a-1(S/N 50001-Up) : Control System : Steering 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 : D75a-1(S/N 50001-Up) : Control System : Steering Pump
| 07***60 | Seal (Kit) | 1 |
| 07***03 | Pump Ass'Y,(Far 032-203) | 1 |
| (****0) | Bolt | 8 |
Komatsu : D75a-1(S/N 50001-Up) : Control System : Steering Valve
| 01***16 | Bolt,(For Slag Handling) | 1 |
| 01***60 | Bolt,(For Japan And Sweden) | 2 |
| 01***50 | Bolt,(With Service Valve R.H.) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Control System : Torqflow Transmission Piping (1/4)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 10 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Control System : Torqflow Transmission Piping (2/4)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***50 | Bolt,(With Service Valve R.H.) | 2 |
| 01***60 | Bolt, Mount Tube To Switch Pump | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Control System : Torqflow Transmission Piping (3/4)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***50 | Bolt,(With Service Valve R.H.) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Control System : Torqflow Transmission Piping (4/4)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 5 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 4 |
Komatsu : D75a-1(S/N 50001-Up) : Control System : Torque Converter Aditional Oil Cooler Piping
| 01***75 | Bolt,(For D57sr) | 2 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Control System : Transmissiom Filter
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 3 |
| 01***36 | Washer,Radio Controlled Slag Handling | 3 |
Komatsu : D75a-1(S/N 50001-Up) : Control System : Transmission Control Lever
| 01***30 | Bolt,(For Mechanical Governor) | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 3 |
Komatsu : D75a-1(S/N 50001-Up) : Control System : Transmission Pump
| 07***60 | Seal (Kit) | 1 |
| 07***03 | Pump Ass'Y,Torqflow Transmission | 1 |
| (****3) | Bracket | 1 |
Engine Related Parts And Electrical System
Komatsu : D75a-1(S/N 50001-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 : D75a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Electrical System
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 7 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
Komatsu : D75a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Engine Mounting Parts
| 01***20 | Bolt | 4 |
| 01***54 | Washer,Spring (D65p) | 4 |
| 04***50 | Wire,(For Slag Handling) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Fuel Piping
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 3 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 3 |
| 07***24 | Hose,(Orange) | 1 |
Komatsu : D75a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Fuel Tank
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 6 |
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
| 01***40 | Bolt,(Not Used With Cab) | 6 |
Komatsu : D75a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Instrument Panel
| 01***20 | Screw - Turn Signal And Parkinglight Mounting | 2 |
| 01***16 | Screw | 8 |
| 01***05 | Nut,(For Air Conditioner Less), Nut | 1 |
Komatsu : D75a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Radiator
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 64 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 12 |
| 01***45 | Bolt, Mounting Bracket To Radiator (Top) | 8 |
Komatsu : D75a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Radiator (For Tree Pusher)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 64 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 12 |
Komatsu : D75a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Radiator Piping And Cover
| 01***16 | Bolt (With Air Heater & Conditioner) | 3 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 9 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 5 |
Komatsu : D75a-1(S/N 50001-Up) : Engine Related Parts And Electrical System : Transmission Safety Switch
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Screw | 2 |
| 01***03 | Nut,(With Joy Stick Steering) | 2 |
Guard
Komatsu : D75a-1(S/N 50001-Up) : Guard : Canopy
| 01***35 | Bolt,R.H. Outside And L.H. Inside | 10 |
| 01***40 | Bolt,R.H. Outside And L.H. Inside, Bolt | 8 |
| 01***50 | Bolt,(Shim Thickness?Less Than 8mm) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Guard : Engine Side Cover
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 8 |
| 01***65 | Bolt | 6 |
| 01***95 | Screw | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Guard : Engine Side Cover (For Tree Pusher)
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 24 |
| 01***36 | Wahser-Spring, Washer,Spring (Without Towing Winch) | 24 |
| 01***16 | Washer,Radio Controlled Slag Handling | 4 |
Komatsu : D75a-1(S/N 50001-Up) : Guard : Equalizer Bar (With Gumpad)
Komatsu : D75a-1(S/N 50001-Up) : Guard : Equalizer Bar (Without Gumpad)
| 01***16 | Bolt,(Sandy And Dusty Spec.) | 2 |
| 01***35 | Bolt,(For Pedal Steering) | 2 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Guard : Fender
| 01***20 | Bolt,(Large Capacity Type) (Std) | 2 |
| 01***25 | Bolt - Rear Guard Mounting | 21 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 4 |
Komatsu : D75a-1(S/N 50001-Up) : Guard : Floor Plate And Box
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 23 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 20 |
Komatsu : D75a-1(S/N 50001-Up) : Guard : Operator'S Seat
| 01***16 | Bolt,(For Slag Handling) | 4 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 8 |
| 01***20 | Bolt,(Used When Towing Winch) | 4 |
Komatsu : D75a-1(S/N 50001-Up) : Guard : Radiator Guard And Engine Hood
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 6 |
Komatsu : D75a-1(S/N 50001-Up) : Guard : Radiator Guard And Engine Hood (For Tree Pusher)
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 6 |
Komatsu : D75a-1(S/N 50001-Up) : Guard : Radiator Shutter (Screen Type)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
| 01***16 | Screw,(Sandy And Dusty Terrain S.) | 4 |
| 01***03 | Nut,(With Joy Stick Steering) | 4 |
Komatsu : D75a-1(S/N 50001-Up) : Guard : Rops Cab (Control Box) (6/7)
| 01***10 | Screw,(For Lighter) | 4 |
| 01***12 | Screw,(For Side Lamp) (Not Shown) | 2 |
| 01***20 | Screw - Turn Signal And Parkinglight Mounting | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Guard : Rops Cab (Door) (3/7)
| 01***20 | Bolt | 4 |
| 01***40 | Bolt | 4 |
| 01***16 | Bolt,(Sandy And Dusty Spec.) | 18 |
Komatsu : D75a-1(S/N 50001-Up) : Guard : Rops Cab (Electrical System) (5/7)
| 01***16 | Bolt (Welded) | 9 |
| 01***16 | Bolt,(Sandy And Dusty Spec.) | 12 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 6 |
Komatsu : D75a-1(S/N 50001-Up) : Guard : Rops Cab (Mount Parts 1/2) (1/7)
| 01***16 | Bolt,(Sandy And Dusty Spec.) | 4 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 4 |
| 01***25 | Bolt - Rear Guard Mounting | 18 |
Komatsu : D75a-1(S/N 50001-Up) : Guard : Rops Cab (Mount Parts 2/2) (2/7)
| 01***12 | Screw,(With Articulate Indicator) | 4 |
| 01***16 | Screw,(P.O.C. Model) (Except Japan) | 23 |
| 01***16 | Screw,(With Ashtray) | 28 |
Komatsu : D75a-1(S/N 50001-Up) : Guard : Rops Cab (Roof Lining) (4/7)
| 01***16 | Bolt,(Sandy And Dusty Spec.) | 2 |
| 01***20 | Screw | 4 |
| 01***25 | Screw | 10 |
Komatsu : D75a-1(S/N 50001-Up) : Guard : Rops Cab (Window Washer) (7/7)
| 01***16 | Bolt (Welded) | 6 |
| 01***05 | Nut,(For Air Conditioner Less), Nut | 2 |
| 01***19 | Washer,(Not Used With Ventilator) | 6 |
Komatsu : D75a-1(S/N 50001-Up) : Guard : Rops Canopy (With Sweeper And Rear Net) (For Tree Pusher Dozer) : Unit_02_of_03
| 01***30 | Bolt,(Not Used With Emergency Str.) | 14 |
| 01***50 | Bolt,(For Tree Pusher) | 12 |
| 01***60 | Bolt, Mount Pole | 6 |
Komatsu : D75a-1(S/N 50001-Up) : Guard : Rops Canopy (With Sweeper And Rear Net) (For Tree Pusher Dozer) : Unit_01_of_03
| 01***30 | Bolt,(Not Used With Emergency Str.) | 34 |
| 01***40 | Bolt,(With Service Valve R.H.) | 3 |
| 01***65 | Bolt,(With Canvas Or Rops Canopy) | 8 |
Komatsu : D75a-1(S/N 50001-Up) : Guard : Rops Canopy (With Sweeper And Rear Net) (For Tree Pusher Dozer) : Unit_03_of_03
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 7 |
Komatsu : D75a-1(S/N 50001-Up) : Guard : Rops Side Net (For Tree Pusher Dozer)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 28 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 28 |
| 14***50 | Canopy,Rops | 1 |
Komatsu : D75a-1(S/N 50001-Up) : Guard : Under Guard
| 01***30 | Bolt,Radio Controlled Slag Handling | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 6 |
| 01***45 | Bolt,(For Travel Motor) (Not Show) | 20 |
Komatsu : D75a-1(S/N 50001-Up) : Guard : Under Guard (Hinged Type)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 9 |
| 01***40 | Bolt,(With Center Guard) | 2 |
| 01***45 | Bolt,(For Travel Motor) (Not Show) | 18 |
Komatsu : D75a-1(S/N 50001-Up) : Guard : Under Guard (Reinforced With Front Hook)
| 01***30 | Bolt,Radio Controlled Slag Handling | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 6 |
| 01***45 | Bolt,(For Travel Motor) (Not Show) | 18 |
Mark Plate? Tool And Kit
Komatsu : D75a-1(S/N 50001-Up) : Mark Plate? Tool And Kit : Kit
| 01***08 | Washer,Plate Bolt | 1 |
| 04***12 | Pin,Cotter? Stud And Nut | 1 |
| 04***18 | Pin,Cotter? Rod And Nut | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Mark Plate? Tool And Kit : Marks And Plates (Arabic)
| 04***60 | Screw, Serial Number Plate | 6 |
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 08***01 | Indicator,Dust (Japanese-English) | 1 |
Komatsu : D75a-1(S/N 50001-Up) : Mark Plate? Tool And Kit : Marks And Plates (English)
| 04***60 | Screw, Serial Number Plate | 6 |
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 08***01 | Indicator,Dust (Japanese-English) | 1 |
Komatsu : D75a-1(S/N 50001-Up) : Mark Plate? Tool And Kit : Marks And Plates (French)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 10 |
| 08***06 | Indicator,Dust | 1 |
| 08***01 | Indicator,Dust (Japanese-English) | 1 |
Komatsu : D75a-1(S/N 50001-Up) : Mark Plate? Tool And Kit : Marks And Plates (Spanish)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 10 |
| 08***01 | Indicator,Dust (Japanese-English) | 1 |
| 08***35 | Indicator,Dust (English-Spanish) | 1 |
Komatsu : D75a-1(S/N 50001-Up) : Mark Plate? Tool And Kit : Spare Parts
| 07***25 | O-Ring,Injection Pump Mounting | 1 |
| 07***98 | O-Ring,Transmission And Steering | 1 |
| 09***00 | Box,Spare Parts (Except Usa) | 1 |
Komatsu : D75a-1(S/N 50001-Up) : Mark Plate? Tool And Kit : Tool
| 07***50 | Pump, (Bellows Type) | 1 |
| 07***03 | Cartridge - Grease | 1 |
| 07***45 | Nozzle, Grease Pump (Non-Flexible Type) | 1 |
S6d125-1ff S/N 24781-Up
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Air Cleaner And Mounting
| 01***40 | Bolt,(Dust And Dirt Protection) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 6 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Air Intake Manifold And Connection
| 01***10 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 11 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 5 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Alternator (13a)
| 60***50 | Alternator A. (13a),(With Non Hardening Pulley) | 1 |
| 60***70 | Alternator A. (13a),(Sandy And Dusty Terrain S.) | 1 |
| KD***31 | Bushing,Insulator | 2 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Alternator (35a) (With Hardening Pulley)
| 60***60 | Alternator A. (35a),(With Non Hardening Pulley) | 1 |
| KD***57 | Bearing,Ball? Front | 1 |
| KD***80 | Collar | 1 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Alternator And Mounting (13a)
| 01***80 | Bolt,(Not Shown) | 1 |
| 01***30 | Bolt | 1 |
| 01***11 | Nut (Welded) | 1 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-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 : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Camshaft And Tappet
| 01***22 | Bolt | 2 |
| 04***25 | Key, Plain Woodruff | 1 |
| 04***12 | Ring,Snap (For Ripper) | 12 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-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 : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-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 : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Crankshaft
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 6 |
| 01***30 | Screw | 1 |
| 01***35 | Screw | 5 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-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 : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Cylinder Block Cover
| 01***16 | Bolt (With Air Heater & Conditioner) | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***00 | Bolt, Mount Back-Up Alarm | 2 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Cylinder Head(#24781-25655)
| 04***20 | Pin,Dowel (Welded) | 2 |
| 61***30 | Sleeve,Holder | 1 |
| 61***20 | Cotter, Valve | 48 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Cylinder Head(#25656-)
| 04***20 | Pin,Dowel (Welded) | 2 |
| 61***30 | Sleeve,Holder | 1 |
| 61***20 | Cotter, Valve | 48 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Exhaust Manifold And Turbocharger
| 01***80 | Bolt, Mount Strainer Flange | 2 |
| 01***00 | Bolt (M10-1.50x100) | 16 |
| 01***45 | Screw | 4 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Flywheel And Flywheel Housing
| 01***40 | Bolt,(Dust And Dirt Protection) | 2 |
| 01***50 | Bolt, Radiator To Frame | 6 |
| 01***70 | Bolt - Thrust Plate Mounting | 2 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Front Cover And Front Support
| 01***25 | Bolt,(Without Auto Priming System) | 6 |
| 01***60 | Screw | 1 |
| 01***65 | Bolt,(Except Japan) | 7 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Fuel Control Lever
| 01***20 | Screw | 3 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 3 |
| 01***09 | Nut (Itl) | 1 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Fuel Filter And Piping
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***16 | Washer,Radio Controlled Slag Handling | 2 |
| 07***12 | Gasket,Mechanical Pump Piping | 2 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Fuel Injection Pump (Coupling)
| 61***32 | Injection Pump A.,(See Fig.0451) | 1 |
| DK***00 | Coupling,Cross | 1 |
| DK***60 | Coupling Ass'Y | 1 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Fuel Injection Pump (Feed Pump)
| 61***32 | Injection Pump A.,(See Fig.0451) | 1 |
| DK***20 | Bolt, Joint | 1 |
| DK***00 | Valve,Check | 2 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Fuel Injection Pump (Governor) (1/2)
| 61***32 | Injection Pump A.,(See Fig.0451) | 1 |
| DK***20 | Flyweight Ass'Y | 1 |
| DK***20 | Guide Lever Ass'Y | 1 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Fuel Injection Pump (Governor) (2/2)
| 61***32 | Injection Pump A.,(See Fig.0451) | 1 |
| DK***00 | Nut,Cap | 1 |
| DK***00 | Cover | 1 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Fuel Injection Pump (Pump)
| 61***32 | Injection Pump A.,(See Fig.0451) | 1 |
| 61***33 | Injection Pump A | 1 |
| DK***30 | Bearing,Roller | 2 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Fuel Injection Pump And Piping
| 01***30 | Bolt | 1 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Fuel Nozzle And Spill Tube
| 01***45 | Bolt, Divider Valve Mounting | 12 |
| 07***65 | O-Ring,Cylinder Block | 6 |
| 07***12 | Gasket,Mechanical Pump Piping | 2 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Gasket Kit
| 01***23 | Washer,Lock (K5) | 1 |
| 02***43 | O-Ring,Water Manifold | 6 |
| 06***03 | Seal,Bearing (K2) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Lubricating Oil Cooler
| 01***25 | Bolt,Without Revolution Sensor | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 12 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Lubricating Oil Filter And Mounting
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 02***16 | Plug | 1 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Lubricating Oil Piping
| 01***60 | Bolt, Mount Tube To Switch Pump | 2 |
| 01***16 | Washer,Radio Controlled Slag Handling | 7 |
| 04***12 | Ring, Snap | 1 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-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 : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Main Clutch Cooler
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
| 01***40 | Bolt, Mount Master Brake Cylinder | 3 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Muffler And Mounting
| 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 : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Oil Pan
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 31 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 7 |
| 01***16 | Washer,Radio Controlled Slag Handling | 38 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Piston And Connecting Rod
| 02***13 | Pin, Dowel | 2 |
| 04***18 | Ring, Snap | 2 |
| 61***31 | Piston Ring Ass'Y | 6 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Power Take Off (1/2)
| 01***10 | Bolt,(With Auto Emergency Steering) | 4 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 6 |
| 01***40 | Bolt,(With Service Valve R.H.) | 6 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Power Take Off (2/2)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Power Take Off 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 : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Rocker Arm And Housing
| 01***08 | Nut,R.H. Thread | 2 |
| 01***16 | Washer,Radio Controlled Slag Handling | 40 |
| 61***10 | Housing, Rocker Lever | 6 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Rocker Arm Housing Cover
| 01***16 | Washer,Radio Controlled Slag Handling | 24 |
| 61***11 | Cover,Head? No.2?3?4?5?6 | 6 |
| 61***10 | Gasket,Cylinder Head Cover | 6 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Starting Motor (11kw)
| 60***11 | Starting Motor Ass'Y,(11kw)(See Fig.0662) | 1 |
| SD***X9 | Bracket,Rear | 1 |
| SD***X9 | Metal | 1 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Starting Motor (7.5kw)
| 60***30 | Starting Motor Ass'Y,(7.5kw) | 1 |
| KD***60 | Shift Lever Assembly | 1 |
| KD***40 | Spring,Spring | 4 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Starting Motor And Mounting (7.5kw? 11kw)
| 01***40 | Bolt,(With Center Guard) | 3 |
| 66***10 | Gasket,Starting Motor | 1 |
| (6***0) | Starting Motor Ass'Y,(7.5kw) (See Fig.0661a) | 1 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Turbocharger
| 61***00 | Turbocharger Ass'Y,(Tv7705) | 1 |
| GA***85 | V-Band Ass'Y | 1 |
| GA***07 | Rotor Ass'Y | 1 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Turbocharger Lubricating Oil Piping
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Water Manifold And Thermostat
| 02***43 | O-Ring,Water Manifold | 6 |
| 07***15 | Plug,(Used When Without Heater) | 1 |
| 08***00 | Sensor,Water Temp. And T/C Oil Temp | 1 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Water Pump And Mounting
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 6 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
Komatsu : D75a-1(S/N 50001-Up) : S6d125-1ff S/N 24781-Up : Water Separator And Mounting
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***40 | Bolt, Mount Master Brake Cylinder | 1 |
| 01***50 | Bolt,(With Service Valve R.H.) | 1 |
Torque Converter And Trnsmission
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Bevel Gear And Shaft
| 01***20 | Bolt,(Large Capacity Type) (Std) | 2 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***40 | Bolt,(Not Used With Cab) | 16 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Bevel Gear And Shaft (For Tree Pusher)
| 01***40 | Bolt,(Not Used With Cab) | 18 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : 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 : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Brake (2/2)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***25 | Bolt,(For Rubber Shoe) | 8 |
| 01***12 | Nut | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Final Drive Case And Sprocket
| 01***20 | Bolt,(Large Capacity Type) (Std) | 20 |
| 01***20 | Bolt,(Used When Towing Winch) | 8 |
| 01***40 | Bolt,(Not Used With Cab) | 66 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Final Drive Case And Sprocket (For Tree Pusher)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 20 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 8 |
| 01***40 | Capscrew | 44 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Final Drive Gear
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 12 |
| 01***30 | Bolt-Hex, Bolt,(With Center Guard) | 16 |
| 01***60 | Bolt,Reamer | 24 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Final Drive Gear (For Tree Pusher)
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 12 |
| 01***30 | Bolt-Hex, Bolt,(With Center Guard) | 16 |
| 01***18 | Nut,R.H. Thread | 24 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Final Drive Shaft And Hub
| 01***20 | Bolt,(Large Capacity Type) (Std) | 4 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 16 |
| 01***45 | Bolt, Mount Bracket | 8 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Final Drive Shaft And Hub (For Tree Pusher)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 16 |
| 01***45 | Bolt (Op) | 8 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Steering Case And Main Frame
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***35 | Bolt,R.H. Outside And L.H. Inside | 5 |
| 01***45 | Bolt, Mount Center Hinge Retainer (Upper) | 5 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Steering Case And Main Frame (For Tree Pusher)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***35 | Bolt,R.H. Outside And L.H. Inside | 5 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Steering Clutch
| 01***20 | Bolt,(Large Capacity Type) (Std) | 2 |
| 01***24 | Nut | 2 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Steering Clutch (For Tree Pusher)
| 01***20 | Bolt,(Large Capacity Type) (Std) | 2 |
| 01***24 | Nut | 2 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Torque Converter (Housing) (1/2)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***50 | Bolt,(For Strengthened Cover) | 6 |
| 01***36 | Wahser-Spring, Washer,Spring (Without Towing Winch) | 4 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Torque Converter (Turbine And Stator) (2/2)(#50001-50280)
| 01***30 | Bolt, Mount Pump | 36 |
| 01***30 | Capscrew - M12 X 1.75 | 8 |
| 01***32 | Washer,(With Auto Emergency Steering) | 24 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Torque Converter (Turbine And Stator) (2/2)(#50281-)
| 01***30 | Bolt, Mount Pump | 48 |
| 01***32 | Washer,(With Auto Emergency Steering) | 36 |
| 04***50 | Ring,Snap | 1 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Torque Converter Relief Valve
| 01***70 | Bolt, Accumulator Mounting Bracket | 5 |
| 01***36 | Wahser-Spring, Washer,Spring (Without Towing Winch) | 5 |
| 07***20 | O-Ring,Lubricating Oil Piping | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Torque Converter Scavenge Pump
| 01***35 | Bolt,(For Position Fixing) | 4 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 4 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 4 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Torque Converter Suction Piping
| 01***40 | Bolt,(With Air Conditioner) | 4 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 10 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Transmission (1st Clutch) (5/6) (For Tree Pusher)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 15 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 6 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Transmission (1st Housing) (5/8)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 18 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 15 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 6 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Transmission (2nd And 3rd Housing) (6/8)
| 01***60 | Bolt, Mount Tube To Switch Pump | 3 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 3 |
| 04***28 | Pin, Dowel - Transmission Case, Pin-Dowel | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Transmission (2nd Clutch) (6/6) (For Tree Pusher)
| 01***60 | Bolt, Mount Tube To Switch Pump | 3 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 3 |
| 04***28 | Pin, Dowel - Transmission Case, Pin-Dowel | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Transmission (Case Cover 1/2) (7/8)
| 01***25 | Bolt,Without Revolution Sensor | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 12 |
| 01***40 | Bolt, Mount Master Brake Cylinder | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Transmission (Case Cover 2/2) (8/8)
| 01***08 | Nut, Regular Hexagon (M10-1.50) | 1 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 1 |
| 01***42 | Washer,Spring (For Pedal Steering) | 1 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Transmission (Case) (1/6) (For Tree Pusher)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 14 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Transmission (Case) (1/8)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 14 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Transmission (Forward Clutch) (3/6) (For Tree Pusher)
| 01***50 | Bolt,(Shim Thickness?Less Than 8mm) | 5 |
| 01***80 | Screw | 1 |
| 01***42 | Washer,Spring (For Pedal Steering), Washer-Spring | 5 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Transmission (Forward Housing) (3/8)
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Transmission (Rear Cover) (2/6) (For Tree Pusher)
| 01***10 | Bolt, Mount Flasher | 4 |
| 01***40 | Bolt,(Dust And Dirt Protection) | 12 |
| 01***60 | Bolt,(Shim Thickness?More Than 8mm) | 4 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Transmission (Rear Cover) (2/8)
| 01***10 | Bolt, Mount Flasher | 4 |
| 01***45 | Bolt, Mount Bracket | 7 |
| 01***40 | Bolt,(With Service Valve R.H.) | 12 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Transmission (Rear Housing) (4/8)
| 04***28 | Pin, Dowel - Transmission Case, Pin-Dowel | 2 |
| 04***20 | Ring, Retaining | 2 |
| 04***25 | Ring, Retaining | 1 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Transmission (Reverse Clutch) (4/6) (For Tree Pusher)
| 04***28 | Pin, Dowel - Transmission Case, Pin-Dowel | 2 |
| 04***20 | Ring, Retaining | 2 |
| 04***25 | Ring, Retaining | 1 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Transmission Case Cover (1/2) (For Tree Pusher)
| 01***25 | Bolt,Without Revolution Sensor | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 12 |
| 01***40 | Bolt, Mount Master Brake Cylinder | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Transmission Case Cover (2/2) (For Tree Pusher)
| 01***08 | Nut, Regular Hexagon (M10-1.50) | 1 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 1 |
| 01***42 | Washer,Spring (For Pedal Steering) | 1 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Transmission Control Valve (1/2)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***75 | Bolt,(For Adjusting) | 1 |
| 01***08 | Nut, Regular Hexagon (M10-1.50) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Transmission Control Valve (2/2)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***35 | Bolt | 3 |
| 01***60 | Bolt | 3 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Transmission Lubrication Valve
| 01***25 | Bolt,Without Revolution Sensor | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Transmission Lubrication Valve (For Tree Pusher)
| 01***25 | Bolt,Without Revolution Sensor | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Transmission Valve (1/2) (For Tree Pusher)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***75 | Bolt,(For Adjusting) | 1 |
| 01***95 | Bolt,(For 2nd Travel Speed) (Op) | 1 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Transmission Valve (2/2) (For Tree Pusher)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***35 | Bolt | 3 |
| 01***60 | Bolt | 3 |
Komatsu : D75a-1(S/N 50001-Up) : Torque Converter And Trnsmission : Universal Joint
| 01***55 | Bolt,(For France Noise Suppression) | 8 |
| 01***36 | Washer,Radio Controlled Slag Handling | 8 |
| 14***10 | Universal Joint A | 1 |
Track
Komatsu : D75a-1(S/N 50001-Up) : Track : Carrier Roller (With Gumpad)(#50001-50328)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***45 | Bolt,(For Travel Motor) (Not Show) | 8 |
| 01***70 | Bolt,Rear Carrier (With Gumpad) | 8 |
Komatsu : D75a-1(S/N 50001-Up) : Track : Carrier Roller (With Gumpad)(#50329-)
| 01***30 | Bolt,(For Rubber Shoe) | 1 |
| 01***45 | Bolt,(For Travel Motor) (Not Show) | 8 |
| 01***70 | Bolt,Rear Carrier (With Gumpad) | 8 |
Komatsu : D75a-1(S/N 50001-Up) : Track : Carrier Roller (Without Gumpad)(#50001-50328)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***45 | Bolt,(For Travel Motor) (Not Show) | 16 |
| 01***85 | Bolt | 8 |
Komatsu : D75a-1(S/N 50001-Up) : Track : Carrier Roller (Without Gumpad)(#50329-)
| 01***30 | Bolt,(For Rubber Shoe) | 1 |
| 01***45 | Bolt,(For Travel Motor) (Not Show) | 16 |
| 01***85 | Bolt | 8 |
Komatsu : D75a-1(S/N 50001-Up) : Track : Front Idler
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 12 |
| 01***55 | Bolt,(For Reinforced Type) | 8 |
| 01***13 | Nut,(See Fig.337) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Track : Recoil Spring
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 16 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 12 |
Komatsu : D75a-1(S/N 50001-Up) : Track : Track Frame (With Gumpad)
| 01***30 | Bolt-Hex, Bolt,(With Center Guard) | 12 |
| 01***40 | Bolt (Op) | 28 |
| 01***60 | Bolt, Mount Pole | 8 |
Komatsu : D75a-1(S/N 50001-Up) : Track : Track Frame (Without Gumpad)
| 01***30 | Bolt-Hex, Bolt,(With Center Guard) | 12 |
| 01***40 | Bolt (Op) | 28 |
| 01***50 | Bolt,(For Tree Pusher) | 8 |
Komatsu : D75a-1(S/N 50001-Up) : Track : Track Frame Cover (With Gumpad)
| 01***30 | Bolt-Hex, Bolt,(With Center Guard) | 20 |
| 01***35 | Bolt,R.H. Outside And L.H. Inside | 4 |
| 01***65 | Bolt | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Track : Track Frame Cover (Without Gumpad)
| 01***30 | Bolt-Hex, Bolt,(With Center Guard) | 20 |
| 01***35 | Bolt,R.H. Outside And L.H. Inside | 4 |
| 01***55 | Bolt,(Tree Pusher Dozer) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Track : Track Roller(#50001-50328)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 12 |
| 01***65 | Bolt (D65p) | 56 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 12 |
Komatsu : D75a-1(S/N 50001-Up) : Track : Track Roller(#50329-)
| 01***65 | Bolt,(For Shipping) | 56 |
| 01***45 | Washer,(Without R.O.P.S.) | 56 |
| 07***17 | Plug | 1 |
Komatsu : D75a-1(S/N 50001-Up) : Track : Track Shoe (Lubricate Type) (Single Grouser) (Heavy-Duty)(#50001-50346)
| 07***30 | Plug,(Large) | 80 |
| 07***21 | Plug,(Small) | 80 |
| 14***00 | Track Link Ass'Y | 1 |
Komatsu : D75a-1(S/N 50001-Up) : Track : Track Shoe (Lubricate Type) (Single Grouser) (Heavy-Duty)(#50347-)
| 07***30 | Plug,(Large) | 80 |
| 07***21 | Plug,(Small) | 80 |
| 14***00 | Track Link Ass'Y | 1 |
Komatsu : D75a-1(S/N 50001-Up) : Track : Track Shoe (Lubricate Type) (Single Grouser)(#50001-50346)
| 07***30 | Plug,(Large) | 80 |
| 07***21 | Plug,(Small) | 80 |
| 14***00 | Track Link Ass'Y | 1 |
Komatsu : D75a-1(S/N 50001-Up) : Track : Track Shoe (Lubricate Type) (Single Grouser)(#50347-)
| 07***30 | Plug,(Large) | 80 |
| 07***21 | Plug,(Small) | 80 |
| 14***00 | Track Link Ass'Y | 1 |
Komatsu : D75a-1(S/N 50001-Up) : Track : Track Shoe (Master Pin Type) (Single Grouser) (Heavy-Duty)(#50001-50346)
| 14***71 | Track Link Ass'Y | 1 |
| 14***50 | Track Shoe Ass'Y | 1 |
| 14***51 | Track Shoe Ass'Y | 1 |
Komatsu : D75a-1(S/N 50001-Up) : Track : Track Shoe (Master Pin Type) (Single Grouser)(#50001-50346)
| 14***71 | Track Link Ass'Y | 1 |
| 14***30 | Track Shoe Ass'Y | 1 |
| 14***31 | Track Shoe Ass'Y | 1 |
Komatsu : D75a-1(S/N 50001-Up) : Track : Track Shoe (Master Pin Type) (Single Grouser)(#50347-)
| 14***71 | Track Link Ass'Y | 1 |
| 14***31 | Track Shoe Ass'Y | 1 |
| 14***12 | Shoe,Track | 80 |
Work Equipment
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment : Angle Blade
| 01***50 | Bolt,(For Tree Pusher) | 8 |
| 01***25 | Nut | 2 |
| 01***36 | Wahser-Spring, Washer,Spring (Without Towing Winch) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment : Angle Rake Dozer
| 01***50 | Bolt,(For Tree Pusher) | 8 |
| 01***25 | Nut | 2 |
| 01***36 | Wahser-Spring, Washer,Spring (Without Towing Winch) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment : C-Frame
| 01***70 | Bolt,(With Wear Guard) | 4 |
| 01***45 | Bolt | 16 |
| 01***30 | Bolt,R.H. (Kit) | 4 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment : Hitch
| 01***60 | Screw | 6 |
| 01***60 | Bolt (Ger) | 1 |
| 01***15 | Nut (Ger) | 1 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment : Ripper
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 16 |
| 01***35 | Bolt,R.H. Outside And L.H. Inside | 4 |
| 01***80 | Bolt, Axle | 10 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment : Ripper (With Soil Lifter)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 16 |
| 01***35 | Bolt,R.H. Outside And L.H. Inside | 4 |
| 01***80 | Bolt | 10 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment : Straight Blade (For Tree Pusher)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***70 | Bolt,(With Wear Guard) | 4 |
| 01***35 | Bolt, Hydraulic Tank Mounting | 4 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment : Straight Frame (For Tree Pusher)
| 01***65 | Bolt, Mount Radiator To Frame (Bottom) | 4 |
| 01***65 | Bolt (D65p) | 8 |
| 01***45 | Bolt | 16 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment : Straight Rake Blade
| 01***25 | Bolt - Rear Guard Mounting | 4 |
| 01***36 | Washer,Radio Controlled Slag Handling | 4 |
| 04***15 | Pin,Cotter (Op) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment : Straight Rake Frame
| 01***65 | Bolt,L.H | 8 |
| 01***65 | Bolt, Mount Radiator To Frame (Bottom) | 4 |
| 01***45 | Bolt | 16 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment : Straight Tilt Blade
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***70 | Bolt,(With Wear Guard) | 4 |
| 01***35 | Bolt, Hydraulic Tank Mounting | 4 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment : Straight Tilt Frame
| 01***65 | Bolt, Mount Radiator To Frame (Bottom) | 4 |
| 01***65 | Bolt (D65p) | 4 |
| 01***45 | Bolt | 16 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment : Tree Pusher
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 8 |
| 01***35 | Bolt,R.H. Outside And L.H. Inside | 8 |
| 01***36 | Wahser-Spring, Washer,Spring (Without Towing Winch) | 8 |
Work Equipment Control System
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Blade Control Lever
| 01***20 | Bolt,(Without Maintenance Monitor) | 4 |
| 01***55 | Bolt | 1 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Blade Lift Cylinder (Angle Dozer)(#50001-50280)
| 01***50 | Bolt,(With Service Valve R.H.) | 4 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 4 |
| 01***50 | Bolt,(Shim Thickness?Less Than 8mm) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Blade Lift Cylinder (Angle Dozer)(#50281-)
| 01***35 | Bolt,(For Position Fixing) | 2 |
| 01***50 | Bolt (Kit) | 2 |
| 01***11 | Nut,(With Under Mirror) | 10 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Blade Lift Cylinder (Straight Tilt Dozer)(#50001-50280)
| 01***50 | Bolt,(With Service Valve R.H.) | 4 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 8 |
| 01***50 | Bolt,(Shim Thickness?Less Than 8mm) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Blade Lift Cylinder (Straight Tilt Dozer)(#50281-)
| 01***35 | Bolt,(For Position Fixing) | 2 |
| 01***50 | Bolt (Kit) | 2 |
| 01***11 | Nut,(With Under Mirror) | 10 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Hydraulic Control Valve (1/2) (Angle Dozer And Ripper)
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 2 |
| 01***40 | Bolt,(Not Used With Cab) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Hydraulic Control Valve (1/2) (Angle Dozer)
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 2 |
| 01***40 | Bolt,(Not Used With Cab) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Hydraulic Control Valve (1/2) (For Tree Pusher Dozer)
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
| 01***95 | Bolt,(For Reversible Fan) | 2 |
| 01***20 | Bolt,(Used When Towing Winch) | 1 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Hydraulic Control Valve (1/2) (Straight Tilt Dozer)
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
| 01***95 | Bolt,(For Reversible Fan) | 2 |
| 01***20 | Bolt,(Used When Towing Winch) | 1 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Hydraulic Control Valve (2/2) (Angle Dozer And Ripper)
| 01***25 | Bolt - Rear Guard Mounting | 4 |
| 01***40 | Bolt,(Dust And Dirt Protection) | 3 |
| 01***05 | Bolt | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Hydraulic Control Valve (2/2) (Angle Dozer)
| 01***25 | Bolt - Rear Guard Mounting | 2 |
| 01***40 | Bolt,(Dust And Dirt Protection) | 3 |
| 01***15 | Bolt | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Hydraulic Control Valve (2/2) (For Tree Pusher Dozer)
| 01***40 | Bolt,(Dust And Dirt Protection) | 3 |
| 01***60 | Bolt, Trunnion Cap | 2 |
| 01***10 | Bolt, Mount Filler Tube | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Hydraulic Control Valve (2/2) (Straight Tilt Dozer)
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Hydraulic Control Valve (Ripper) (Angle Dozer)
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 2 |
| 01***45 | Bolt,(Cold Terrain Spec.) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Hydraulic Control Valve (Ripper) (Straight Tilt Dozer)
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 2 |
| 01***45 | Bolt,(Cold Terrain Spec.) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Hydraulic Piping (Hydraulic Pump To Tank)
| 01***55 | Bolt, Mount Tube To Switch Pump | 2 |
| 01***75 | Bolt,(For Adjusting) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 1 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Hydraulic Piping (Lift Cylinder Line) (1/2)
| 01***75 | Bolt,(For 75a Alternator) | 2 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Hydraulic Piping (Lift Cylinder Line) (2/2)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 10 |
| 01***11 | Nut,(With Under Mirror) | 6 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 40 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Hydraulic Piping (Ripper Cylinder Line)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
| 01***40 | Bolt,(With Service Valve R.H.) | 2 |
| 01***55 | Bolt, Mount Lh Bracket | 4 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Hydraulic Piping (Tilt Cylinder Line) (1/2)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***45 | Bolt,(For Power Tilt Mech Angle) | 4 |
| 01***50 | Bolt,(With Service Valve R.H.) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Hydraulic Piping (Tilt Cylinder Line) (2/2)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 21 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 12 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Hydraulic Piping (Tilt Cylinder Line) (For Tree Pusher)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 11 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 2 |
| 01***36 | Wahser-Spring, Washer,Spring (Without Towing Winch) | 13 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Hydraulic Tank (1/2) (Angle Dozer And Ripper)
| 01***25 | Bolt,(Without Auto Priming System) | 3 |
| 01***16 | Bolt,(Sandy And Dusty Spec.) | 2 |
| 01***40 | Bolt,(Dust And Dirt Protection) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Hydraulic Tank (1/2) (Angle Dozer)
| 01***25 | Bolt,Without Revolution Sensor | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 49 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Hydraulic Tank (1/2) (For Tree Pusher Dozer)
| 01***25 | Bolt,(Without Auto Priming System) | 3 |
| 01***16 | Bolt,(Sandy And Dusty Spec.) | 2 |
| 01***40 | Bolt,(Dust And Dirt Protection) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Hydraulic Tank (1/2) (Straight Tilt Dozer And Ripper)
| 01***25 | Bolt,(Without Auto Priming System) | 3 |
| 01***16 | Bolt,(Sandy And Dusty Spec.) | 2 |
| 01***40 | Bolt,(Dust And Dirt Protection) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Hydraulic Tank (2/2) (Angle Dozer And Ripper)
| 01***30 | Bolt,(Cold Terrain Spec.) | 2 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 1 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Hydraulic Tank (2/2) (Angle Dozer)
| 01***30 | Bolt,(For Mechanical Governor) | 1 |
| 01***90 | Bolt, Fan Mounting | 1 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 1 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Hydraulic Tank (2/2) (For Tree Pusher Dozer)
| 01***30 | Bolt,(Cold Terrain Spec.) | 3 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 1 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 3 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Hydraulic Tank (2/2) (Straight Tilt Dozer And Ripper)
| 01***30 | Bolt,(Cold Terrain Spec.) | 3 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 1 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 3 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Ripper Control Lever
| 01***30 | Bolt,(For Mechanical Governor) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***08 | Nut (Welded) | 1 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Ripper Control Valve (For Tree Pusher Dozer)
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 2 |
| 01***45 | Bolt,(Cold Terrain Spec.) | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Ripper Cylinder
| 01***40 | Bolt,(With Air Conditioner) | 2 |
| 01***50 | Bolt (Kit) | 2 |
| 01***35 | Bolt,R.H. Outside And L.H. Inside | 2 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Tilt Cylinder(#50001-50280)
| 01***12 | Bolt,(With Cylinder Cover) | 1 |
| 01***55 | Bolt,(For Reinforced Type) | 2 |
| 01***75 | Bolt | 4 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Tilt Cylinder(#50281-)
| 01***12 | Bolt,(With Cylinder Cover) | 1 |
| 01***60 | Capscrew | 12 |
| 01***23 | Washer,(For Shipping) | 1 |
Komatsu : D75a-1(S/N 50001-Up) : Work Equipment Control System : Work Equipment Pump
| 04***20 | Ring, Snap | 1 |
| 07***62 | Seal (Kit) | 1 |
| 07***10 | Plate | 1 |
D75A-1(S/N 50001-UP) serial number reference
On a D75A-1 of this vintage, the PIN/serial data plate is riveted either behind the operator's seat inside the cab or on the frame near the rear of the machine, sometimes hidden under a black Komatsu decal; there is no separate front cowl VIN plate like on later electronic-era Komatsu dozers. Read the model code stamped as D75A-1 followed by the machine number; if that number falls at or above 50001 it belongs to this S/N 50001-UP family. This model uses a plain numeric serial run rather than a lettered prefix block, so confirm the exact running number (not a 3-character code) against the parts or shop manual break to get the right manual section.
| Prefix | Identifies | Notes |
|---|---|---|
| 50001-Up | D75A-1 standard track-type tractor (single production block, no sub-lettered PIN prefix) | Whole D75A-1 run starts at serial 50001 and carries no separate 3-character alpha PIN prefix like later Komatsu machines use; the model code D75A-1 plus this number block is the full identity. Paired factory engine is the S6D125-1FF, engine serials 24781-Up. Confirm with dealer whether any internal running change (Std vs LGP track gauge, steering-clutch-and-brake vs other steering option) exists inside this single block, since no published sub-split was found. |
Frequently asked questions
What engine powers the Komatsu D75A-1 (S/N 50001-Up)?
A Komatsu S6D125-1FF turbocharged inline-six diesel (engine S/N 24781-Up), mechanically governed with no electronic control module.
What is the operating weight of the D75A-1 (S/N 50001-Up)?
Not published for this exact serial range. No factory weight figure is documented for this specific S/N block; check the machine's nameplate or your dealer for confirmed figures.
What replaced the Komatsu D75A-1?
No single confirmed direct-replacement model is documented for this exact serial range. It belongs to Komatsu's mechanically governed TORQFLOW dozer generation alongside the D65A-8/-11 family, which was eventually superseded fleet-wide by later, electronically managed dozer generations.
What D75A-1(S/N 50001-UP) owners discuss
What do owners and mechanics say about the S6D125-1 engine's reliability in this dozer?
Discussion tied specifically to this exact engine-and-dozer pairing is thin online; this is an older, lightly documented serial range. Broader experience with the turbocharged S6D125 six-cylinder family used across this driveline generation is generally favorable: a durable, mechanically simple pre-emissions design that keeps running with routine service. The standard turbo-diesel warning signs still apply regardless of hours. White smoke on a cold start that clears once warm points to fuel delivery or a weak glow/starting-aid circuit, not the engine itself. Persistent blue smoke after warm-up usually means a worn turbo oil seal, valve stem seals, or ring wear. Black smoke under load points to a restricted air intake or a tired injection pump. None of these are complaints unique to this serial range, just the normal diagnostic order applied to any turbo-diesel of this vintage.
Is torque converter or TORQFLOW transmission overheating a known complaint on this driveline?
Rising converter oil temperature is a recurring topic among owners of Komatsu TORQFLOW dozers from this era, and the causes reported are consistent from machine to machine: a leaking forward or first-speed clutch pack letting oil bypass the cooler internally, a plugged or fouled transmission oil cooler, low oil level, or worn seals starving the converter of flow. On mechanical TORQFLOW machines of this vintage there is no electronic lockup control to chase, so a rising gauge points a mechanic straight at clutch clearances, the cooler, and oil supply rather than at a sensor or module. Treat a slow, steady climb on the converter gauge as a service item to chase down before it becomes a transmission overhaul.
What's the reputation of the steering clutch and brake system on this generation of dozer?
This machine uses a mechanical, lever-actuated steering clutch and drum brake rather than the hydrostatic steering fitted to later Komatsu dozers. Community experience with this control era across the shared mechanical-lever family treats clutch disc and brake drum wear as a routine service item, not a defect; the discs and drums are designed wear parts replaced on interval rather than only on failure. Sloppy or delayed steering response is more often an adjustment issue than a parts failure. Because this system directly controls machine steering and braking, have your dealer or a qualified technician verify clutch and brake adjustment before returning the machine to work.
What undercarriage wear patterns should owners of a machine this size and age expect?
Nothing unique to this model here; the same principles apply as to any crawler dozer in this weight class. Track tension needs checking under actual working conditions: too tight accelerates bushing wear, too loose invites instability or a thrown track. Undercarriage components represent a large share of a dozer's original purchase price and an even larger share of its lifetime repair spend, so the consistent advice is to inspect trunnion pins, bushings, and roller and idler wear on a set interval rather than waiting for visible symptoms. On a machine of this age, plan for the undercarriage to be a major line item in any purchase or overhaul budget.
Are there known electrical, charging, or sensor issues reported for this model?
This is a pre-electronic-era machine with a comparatively simple charging and gauge circuit, and there is no body of complaints tied specifically to this serial range online. The electrical quirks that do turn up regularly on Komatsu machines of similar vintage are worth checking as routine practice: a battery relay whose small feed wires can overheat and melt insulation over time, and older-style alternators that sometimes need to be manually excited before they start charging rather than picking up on their own. Neither is documented as specific to this model, but both are quick, low-cost checks during a pre-purchase inspection or when chasing a no-charge complaint.
How do owners generally describe working on this era of Komatsu dozer?
Broader sentiment toward this driveline generation of Komatsu dozer describes the machines as durable but dense to service. Reaching some components means removing other assemblies first, and hydraulic lines are secured with numerous clamps that add time to routine hose work. That reputation for being labor-intensive to wrench on, more than any single recurring failure, is what shows up most often in community discussion of machines from this era.
What should a buyer check before purchasing a used D75A-1(S/N 50001-UP)?
Ask for service records first; a thick maintenance file is a strong signal the machine was kept up and shows what major work, such as an engine or transmission overhaul, has already been done. Walk the undercarriage and check track tension, trunnion pins, and bushing wear, since this is the single most expensive system to restore on a machine this size. Start the engine cold and watch smoke color and how quickly it clears. Run the transmission through all ranges and watch the converter oil temperature gauge for a slow, steady climb rather than a stable reading. Cycle the blade and any auxiliary hydraulics fully and check for creep, delayed response, or leaking cylinders. Inspect the blade, cutting edge, and push arms for wear or cracking. Given the age of this serial range, budget for the possibility that the engine, transmission, or undercarriage is approaching or past a rebuild interval, and have a qualified technician verify steering clutch, brake, and hydraulic system condition before you buy.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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