Komatsuwheel loadermedium (wa140 - wa380)
Komatsu WA250-1(S/N 10001-UP)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu WA250-1 (S/N 10001-UP) is a mid-size articulated four-wheel-drive wheel loader, the first WA250 generation Komatsu sold under that model number, built roughly from 1987 to 1994. It runs a turbocharged Komatsu S6D105-1 inline six-cylinder diesel rated at approximately 97 kW (130 hp) gross, driving through a torque-converter powershift transmission with four forward and four reverse speeds and no electronic engine controls. Operating weight runs roughly 10 to 11 t (about 22,000 to 24,250 lb) depending on configuration and source, riding on 20.5-25 tires with a standard general-purpose bucket around 2 m³ (2.6 yd³) heaped. Production carried on past the base 10001 block into an A-prefixed continuation run (A10509-UP) using the same engine and driveline rather than a new model code, and Komatsu offered the loader with general-purpose, multi-purpose (4-in-1), light-material, and fork-carriage configurations for construction, yard, and quarry duty.
Komatsu skipped a "-2" designation for this model and moved directly to the WA250-3 generation in the early-to-mid 1990s, which carried the same torque-converter powershift architecture forward with updated tuning; later -3A, -3L, -3MC, and -3X variants extended that platform across different serial blocks and regional specs, and a further -5L generation followed before Komatsu eventually introduced hydrostatic-drive PT and -6 generations that share nothing mechanically with this machine. In the used-equipment and parts market, the WA250-1 stays in circulation mainly because of its simplicity: the mechanically governed S6D105-1 engine carries no ECM or fault codes to chase, its driveline and cab architecture are shared with the wider WA200-1/WA300-1/WA320-1 family from the same era (which widens the used-parts pool), and low acquisition cost keeps surviving units working as yard loaders, snow machines, parts donors, and rebuild projects long after Komatsu stopped supporting the platform with new machines.
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 WA250-1(S/N 10001-UP) specifications
Engine
| Engine type | 6-cylinder, water-cooled, turbocharged diesel — Komatsu S6D105-1 series, per the factory shop manual scope for this serial range and parts cross-reference documentation. The exact suffix is not repeated across every source; confirm the precise designation with your dealer or parts book before ordering engine components. |
| Gross power | 97 kW (130 hp), per dealer spec sheets for this exact model. |
| Net power | Not published in available spec sheets for this serial range. |
| Displacement | Not published in available spec sheets for this serial range. |
| Cylinders | 6 |
| Emissions tier | Built 1987 to 1994; predates nonroad diesel emissions-tier regulation (before Tier 1 / Stage I). No emissions certification applies to this serial range. |
Weights
| Operating weight | 11 t (24,250 lb) per factory-class spec sheets. Some dealer listings for actual S/N 10001-UP units cite roughly 10 t (22,000 lb); treat operating weight as varying by configuration and source in the 10-11 t range. |
| Shipping weight | Not published in available spec sheets for this serial range. |
| Ground pressure | Not published in available spec sheets for this serial range. |
Dimensions
| Transport length | 6.77 m (22 ft 3 in) |
| Transport width | 2.58 m (8 ft 6 in) |
| Transport height | 3.25 m (10 ft 8 in) |
| Tire size | 20.5-25 |
| Standard bucket capacity | 2 m³ (2.6 cu yd), heaped |
| Wheelbase and ground clearance | Not published in available spec sheets for this serial range. |
Performance
| Transmission | Powershift, 4 speeds forward and 4 reverse. |
| Steering | Center-pivot articulated frame. |
| Travel speed | Not confirmed for this exact serial range in available spec sheets. Verify the top speed for S/N 10001-UP with your dealer before quoting a figure. |
| Breakout force, static tipping load, dump clearance/reach | Not published in available spec sheets for this serial range. |
Service capacities (summary)
| Fuel tank, hydraulic system, engine oil, cooling system | Not published in available spec sheets for this serial range. Confirm capacities with a Komatsu dealer or the WA200-1/WA250-1 shop manual before servicing. |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
WA250-1(S/N 10001-UP) fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (oil pan, with filter) | Exact refill volume for this S/N range is not confirmed in accessible documentation. This machine carries the Komatsu S6D105-1 turbocharged inline-6 diesel; comparable 6D105-family industrial engines of this era typically hold in the high-teens to low-20s of liters (roughly 5-6 US gal) with filter, but treat that as a ballpark only and confirm against the dataplate or dealer parts lookup before servicing. | Komatsu Genuine diesel engine oil (EO series). Select by ambient temperature: SAE 10W in sub-freezing cold, SAE 30 in warm/temperate conditions, and a multigrade SAE 10W-30 or 15W-40 where temperatures swing across a wide range. Match to at least API CD performance level, consistent with Komatsu's long-standing EO lineup for this engine family. |
| Cooling system | Not confirmed for this exact serial range in accessible sources. Verify with your dealer or the machine's OMM/dataplate rather than assume a figure from a later WA250 generation, since those use different, larger engines. | Komatsu Genuine Super Coolant (permanent-type, ethylene-glycol based, non-amine/non-nitrite formulation) mixed per the OMM's cold-climate dilution guidance. This coolant family is formulated for year-round corrosion, cavitation, and scale protection in Komatsu cooling systems. |
| Fuel tank | Not confirmed for this exact serial range in accessible sources; this generation predates most digitized spec sheets. Confirm on the dataplate or with your dealer. | Automotive-grade diesel fuel meeting local diesel specifications. Switch to a winter-grade (lower cloud/pour point) diesel below freezing to avoid fuel waxing and filter plugging. |
| Power train case (torque converter and transmission) | Not confirmed for this exact serial range in accessible sources; Komatsu wheel loaders of this class typically combine torque converter and transmission into one shared sump, but the exact fill volume for this chassis could not be verified. Confirm with your dealer or the OMM. | Komatsu Genuine powertrain oil, TO series: TO10 (SAE 10W) in cold conditions, TO30 (SAE 30) in warm/temperate conditions. Formulated for anti-wear, anti-burning/friction stability, and seal compatibility in wet-clutch torque-converter transmissions. |
| Front axle (differential and final drive) | Not confirmed for this exact serial range in accessible sources. Confirm with your dealer or the OMM before a fluid change. | Komatsu Genuine axle oil AXO80 (SAE 80W, GL-4/GL-5 class). Formulated for axles with an integrated wet brake and limited-slip differential; do not substitute a generic gear oil without checking friction-modifier/wet-brake compatibility. |
| Rear axle (differential and final drive) | Not confirmed for this exact serial range in accessible sources. Confirm with your dealer or the OMM before a fluid change. | Komatsu Genuine axle oil AXO80 (SAE 80W, GL-4/GL-5 class), same specification as the front axle. |
| Hydraulic tank / hydraulic system | Not confirmed for this exact serial range in accessible sources. Later WA250 generations (with larger, different engines) publish figures in the low-to-mid 60-liter range for the hydraulic system, but that data belongs to a different engine/chassis generation and should not be carried over to this earlier S6D105-1-powered machine without verification. | Komatsu Genuine hydraulic oil HO46-HM (ISO VG46) for standard operating temperatures. Where the machine runs in consistently cold or very hot climates, Komatsu's cold-climate (ISO VG32, low-temperature flow) or high-efficiency wide-range hydraulic oil grades are the appropriate substitutes — confirm the correct grade for your climate with your dealer. |
| Grease (chassis lubrication points) | Spec only — no reservoir capacity applies; grease is applied at individual pins, bushings, the articulation joint, and bucket linkage per the OMM's lubrication chart. | Komatsu Genuine multipurpose lithium-base EP grease (NLGI No. 2) for general chassis pins and bushings. Komatsu's molybdenum-disulfide grease is the alternative call-out for heavy-duty pivot points prone to galling. Use a cold-climate grease grade in sustained sub-freezing conditions. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Komatsu WA250-1(S/N 10001-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 WA250-1(S/N 10001-UP) beyond the schedule
Predictive Maintenance & Fluid Analysis
The WA250-1 runs a mechanically governed S6D105-1 turbo diesel with no ECM, so this generation has no fault codes to read. Oil sampling is the main early-warning tool: pull periodic samples from the engine, torque-converter/transmission case, front and rear axle housings, and hydraulic tank to catch wear metal before a component fails. Track coolant inhibitor concentration at each interval, and log wet-disc brake oil condition since brake cooling shares the axle circuit. Watch turbocharger oil consumption trend, a known age-related wear point on this engine family.
Corrective & Common Repairs
Owners on this generation report the S6D105-1 injector nozzle seal as the recurring weak point: it hardens with age and starts weeping fuel or combustion gas into the coolant or oil rather than triggering a code. Loader-arm and lift-cylinder seal drift shows up on high-hour units, diagnosed by cycling the arm loaded and unloaded. Center articulation pins and bushings wear from decades of short loading cycles, and corroded wiring connectors near the battery and instrument cluster cause intermittent gauge readings on this analog-panel machine.
Overhaul & Rebuild Points
A major overhaul on the WA250-1 starts with the mechanical inline fuel-injection pump and injectors, recalibrated once combustion efficiency drops, plus a turbocharger center-cartridge rebuild. Rebuild the torque-converter stator and powershift clutch packs as a set rather than patching individual plates. Front and rear axle final-drive gears and wet-disc brake packs wear together and are typically renewed at the same teardown. Reseal the hydraulic pump and loader control valve, and replace articulation and Z-bar loader-linkage pins and bushings as a group once play develops.
Seasonal & Environment Servicing
Cold starts on the mechanically injected S6D105-1 depend on a working intake air heater and correct winter-grade engine and hydraulic oil viscosity; check coolant antifreeze protection before winter. Hot, dusty sites shorten air-cleaner element life fast, so inspect the dust cup daily and step up element changes in quarry or demolition duty. Clean the radiator and hydraulic-oil cooler fins more often in dusty conditions to prevent torque-converter overheating. Adjust tire pressure and ballast for soft or wet ground to protect the axle housings and final drives from shock loading.
WA250-1(S/N 10001-UP) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 600-311-9100 | Fuel Filter Ass'Y | Fuel system service | Check fitment → |
| 07281-00197 | Clamp,(With Pre-Fuel Filter) | Fuel system service | Check fitment → |
| 09637-02161 | Plate? Instruction,Air Cleaner (Double Element) | Air intake service | Check fitment → |
| 09637-30161 | Plate? Instruction,Air Cleaner (Single Element) | Air intake service | Check fitment → |
| 09637-30262 | Plate? Instruction,Air Cleaner (Double Element) | Air intake service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
WA250-1(S/N 10001-UP) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| ENGINE OIL PRESSURE (red warning lamp) | Engine lubrication pressure has fallen below the safe minimum. | Low engine oil level, a clogged oil suction strainer, a worn oil pump, or a failed pressure sender/switch. | Shut the engine down right away, check oil level and look for leaks, then check the sender before restarting. |
| COOLANT TEMPERATURE (red warning lamp) | Engine coolant temperature has gone above the normal operating range. | Low coolant level, a clogged radiator core, a slipping or broken fan belt, or a stuck thermostat. | Idle the engine in the shade, let it cool, then check coolant level, radiator fins, and fan belt condition before returning to work. |
| CHARGE (red warning lamp) | The alternator is not charging the battery circuit. | A loose or broken fan/alternator belt, worn alternator brushes, or a failed alternator or regulator. | Check belt tension and condition first, then bench-test or swap the alternator if the belt is good. |
| AIR CLEANER RESTRICTION (indicator) | Intake air filter restriction has reached the service limit. | A clogged primary air filter element from dust and debris buildup. | Pull, inspect, and clean or replace the air filter element, then reset the restriction indicator. |
| TORQUE CONVERTER OIL TEMPERATURE (red warning lamp) | Torque converter oil has overheated. | Sustained stall-condition operation (pushing into a full bucket for too long), low torque converter oil level, or a clogged torque converter oil cooler. | Run the engine unloaded at mid-range speed until the lamp goes out, then check oil level and cooler condition before resuming work. |
| PARKING BRAKE (warning lamp) | Parking brake is applied or not fully released. | Parking brake lever left engaged, or a sticking/binding parking brake linkage. | Confirm lever position first; if the lamp stays lit with the lever released, inspect the parking brake linkage and actuator. |
| BRAKE OIL PRESSURE (warning lamp) | Service brake accumulator/charge pressure has dropped below the safe minimum. | A leak in the brake oil circuit, a worn brake charging pump, or a faulty brake pressure switch. | Stop the machine in a safe spot, check brake circuit oil level, and have the charging pump and pressure switch checked before continuing to operate. |
| HYDRAULIC OIL FILTER BYPASS (indicator) | The hydraulic return filter has gone into bypass from excess restriction. | A clogged hydraulic filter element, or cold, thickened oil right at startup. | Let the oil reach normal operating temperature and recheck; replace the filter element if the indicator stays on once warm. |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
WA250-1(S/N 10001-UP) attachments & work tools
General-purpose bucket
Standard bolt-on/pin-mounted GP bucket for this size class runs around 2.0 m3 (2.6 yd3) heaped, with a bolt-on cutting edge for grading or a bolt-on tooth set for rock and aggregate digging. This is the factory-fit tool for the loader.
Multi-purpose (4-in-1) bucket
A hinged clamshell-style bucket that also works as a dozer blade, grapple/clamshell, and light scraper. Common option on this loader class for yard clean-up, light dozing, and material sorting, at some trade-off in breakout force versus the plain GP bucket.
Light-material / high-capacity bucket
A larger, thinner-wall bucket in roughly the 2.5-3.0 m3 (3.3-3.9 yd3) range built for low-density material such as woodchips, grain, or snow. Trades digging force for volume and is swapped in seasonally rather than run as the primary tool.
Pallet forks / fork carriage
Bolt-on or pin-mounted fork frame with tines for palletized loads and general yard material handling. Mounts on the same lift-arm attachment point as the buckets; no auxiliary hydraulic kit is needed since forks are a passive tool.
Coupler / mounting system
Work tools on this generation of loader pin directly onto the lift arm and bell crank (bolt/pin attachment), the standard method for this size class in this era. A mechanical lever-type quick coupler for faster bucket-to-fork changeovers was offered across the broader WA-series line, but factory fitment for this exact serial range is not documented online - verify against the dealer parts book for this machine.
Bucket teeth and cutting edges
Replaceable bolt-on teeth for abrasive digging in rock or aggregate, or a plain bolt-on cutting edge for grading and stockpile push work. Both are catalog options across the whole GP-bucket family for this loader size.
Cab guarding / screens
The machine carries a ROPS-rated cab as standard. A bolt-on front screen or rock guard was available across this loader class to protect the windshield in quarry, demolition, or waste-handling duty; treat as an added-on guard rather than a base-cab feature.
Tire / traction options
Standard tire size for this loader is 20.5-25. Tread choice (rock-service vs general earthmoving pattern) varies by application and dealer stock rather than by a single factory spec, since duty cycle (paved yard vs quarry) drives the wear pattern needed.
Snow equipment
An oversized lightweight bucket or a pusher-type blade was a common seasonal work tool fitted to loaders in this size class for municipal or airport snow clearing, generally swapped in for the standard GP bucket rather than run alongside it.
All WA250-1(S/N 10001-UP) assemblies by section
Every catalogued assembly group for the Komatsu WA250-1(S/N 10001-UP). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Drive Shaft? Differential And Wheels
Komatsu : Wa250-1(S/N 10001-Up) : Drive Shaft? Differential And Wheels : Booster And Master Cylinder
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 41***10 | Connector | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Drive Shaft? Differential And Wheels : Booster Oil Piping
| 01***35 | Bolt,(For Position Fixing) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Drive Shaft? Differential And Wheels : Brake Oil Piping (1/3)
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***60 | Screw | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Drive Shaft? Differential And Wheels : Brake Oil Piping (2/3)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Drive Shaft? Differential And Wheels : Brake Oil Piping (3/3)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 07***23 | O-Ring,(F4350-68a0 -13 ) | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Drive Shaft? Differential And Wheels : Brake Pedal
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Drive Shaft? Differential And Wheels : Brake Pedal And Linkage
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 1 |
| 01***30 | Screw | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Drive Shaft? Differential And Wheels : Drive Shaft (Center)
| 01***45 | Screw | 8 |
| 41***14 | Drive Shaft Ass'Y,Center (Wa320-1p) | 1 |
| 41***21 | Spider Assembly | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Drive Shaft? Differential And Wheels : Drive Shaft (Front)
| 01***60 | Bolt, Hanger Bearing Mounting | 4 |
| 01***15 | Screw | 1 |
| 01***45 | Screw | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Drive Shaft? Differential And Wheels : Drive Shaft (Rear)
| 01***45 | Screw | 8 |
| 41***12 | Drive Shaft Assembly, Rear | 1 |
| 41***50 | Yoke | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Drive Shaft? Differential And Wheels : Front Axle Housing
| 01***30 | Bolt, Mount Housings To Differential | 28 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 28 |
| 04***60 | Screw, Serial Number Plate | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Drive Shaft? Differential And Wheels : Front Differential
| 01***30 | Capscrew - M12 X 1.75 | 30 |
| 01***35 | Bolt, Mount Carrier | 13 |
| 01***45 | Capscrew - M16 | 16 |
Komatsu : Wa250-1(S/N 10001-Up) : Drive Shaft? Differential And Wheels : Front Wheel Brake And Front Final Drive
| 01***60 | Washer,(Without Rops Guard? Canopy) | 30 |
| 41***10 | Cone, Bearing | 12 |
| 41***22 | Piston | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Drive Shaft? Differential And Wheels : Parking Brake
Komatsu : Wa250-1(S/N 10001-Up) : Drive Shaft? Differential And Wheels : Parking Brake Control
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 2 |
| 01***16 | Screw, Mount Leg | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Drive Shaft? Differential And Wheels : Parking Brake Mounting Parts
| 01***55 | Bolt,(For France Noise Suppression) | 4 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 4 |
| 41***30 | Bracket, Caliper Mounting | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Drive Shaft? Differential And Wheels : Rear Axle Housing
| 01***30 | Bolt, Mount Housings To Differential | 28 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 28 |
| 04***60 | Screw, Serial Number Plate | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Drive Shaft? Differential And Wheels : Rear Differential
| 01***30 | Capscrew - M12 X 1.75 | 30 |
| 01***35 | Bolt, Mount Carrier | 13 |
| 01***45 | Capscrew - M16 | 16 |
Komatsu : Wa250-1(S/N 10001-Up) : Drive Shaft? Differential And Wheels : Rear Wheel Brake And Rear Final Drive
| 01***60 | Washer,(Without Rops Guard? Canopy) | 30 |
| 41***10 | Cone, Bearing | 12 |
| 41***22 | Piston | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Drive Shaft? Differential And Wheels : Tire Inflation Kit (1/2)
| 01***75 | Bolt,(For Shipping) | 2 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Drive Shaft? Differential And Wheels : Tire Inflation Kit (2/2)
| 41***11 | Frame,Rear | 1 |
| 41***20 | Plate | 2 |
| 41***10 | Rear Frame Ass'Y,(Modified Parts) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Drive Shaft? Differential And Wheels : Wheel And Tire
| 09***20 | Cap, Tire Valve | 1 |
| 41***70 | Flange,Side | 1 |
| 41***80 | Ring,Lock | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Drive Shaft? Differential And Wheels : Wheel And Tubeless Tire
| 09***30 | Stem, Valve | 1 |
| 09***41 | Core, Valve | 1 |
| 09***20 | Cap, Tire Valve | 1 |
Engine Related Parts And Electrical System
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Accelerator Pedal And Linkage
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 2 |
| 01***20 | Bolt,(Without Maintenance Monitor) | 3 |
| 01***60 | Bolt,(For Japan And Sweden) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Battery And Battery Box
| 01***30 | Bolt,(Cold Terrain Spec.) | 1 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 8 |
| 01***65 | Bolt, Mount Radiator To Frame (Bottom) | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Electrical System (Battery Line) (For Cluster Gauge)
| 01***12 | Bolt,(With Cylinder Cover) | 1 |
| 01***25 | Bolt,Without Revolution Sensor | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 19 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Electrical System (Battery Line) (For Monitor Panel)
| 01***12 | Bolt,(With Cylinder Cover) | 1 |
| 01***25 | Bolt,Without Revolution Sensor | 2 |
| 01***10 | Bolt (Op) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Electrical System (Console Box? L.H.) (For Monitor Panel)
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Electrical System (Console Box? R.H.) (For Monitor Panel)
| 01***12 | Bolt, Bolt,(No Need To Quick Shift) | 8 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 4 |
| 01***10 | Screw,(For Lighter) | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Electrical System (Engine Line) (Cold Terrain Spec.)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***16 | Screw, Mount Leg | 4 |
| 01***20 | Screw - Turn Signal And Parkinglight Mounting | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Electrical System (Engine Sensor) (For Cluster Gauge)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 5 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 1 |
| 01***12 | Screw,(With Articulate Indicator) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Electrical System (Engine Sensor) (For Monitor Panel)
| 01***12 | Bolt, Bolt,(No Need To Quick Shift) | 1 |
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 5 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Electrical System (For Air Conditioner) (For Cluster Gauge) (Daikin)
| 01***10 | Bolt,(With Auto Emergency Steering) | 1 |
| 01***23 | Washer,(With Auto Emergency Steering) | 1 |
| 08***19 | Band,(Without Air Conditioner) | 5 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Electrical System (For Air Conditioner) (For Cluster Gauge) (Nippon Denso)
| 08***19 | Band,(Without Air Conditioner) | 5 |
| 22***60 | Fuse? 20a,20a | 1 |
| 28***90 | Fuse? 10a,10a | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Electrical System (For Cab) (For Cluster Gauge)
| 01***12 | Bolt, Bolt,(No Need To Quick Shift) | 1 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Electrical System (For Car Heater) (For Cluster Gauge) (Nippon Denso)
| 08***19 | Band,(Without Air Conditioner) | 5 |
| 08***19 | Band - Tie Hose To Wire Harness | 3 |
| 22***60 | Fuse? 20a,20a | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Electrical System (Front Lamp) (For Cluster Gauge)
| 01***10 | Bolt,(With Auto Emergency Steering) | 12 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 6 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Electrical System (Front Lamp) (For Monitor Panel)
| 01***10 | Bolt,(With Auto Emergency Steering) | 12 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 6 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 12 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Electrical System (Front Line) (For Cluster Gauge)
| 01***10 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***12 | Bolt,(With Cylinder Cover) | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 16 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Electrical System (Front Line) (For Monitor Panel)
| 01***12 | Bolt, Bolt,(No Need To Quick Shift) | 1 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 4 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 16 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Electrical System (Main Line) (For Cluster Gauge)
| 01***10 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 2 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Electrical System (Main Line) (For Monitor Panel)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 2 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 14 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Electrical System (Rear Lamp) (For Cluster Gauge)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 6 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Electrical System (Rear Lamp) (For Monitor Panel)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 6 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Engine Mounting Parts
| 01***45 | Bolt,(For Suction? Reversible Fan) | 8 |
| 01***50 | Bolt, Radiator To Frame | 8 |
| 01***30 | Bolt, Mount Engine To Frame | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Engine Rerated Parts(#10001-11999)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
| 07***34 | O-Ring, O-Ring,Drain Plug? R.H. Half Tank | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Fuel Tank And Piping (For Cluster Gauge)(#10001-11999)
| 01***16 | Bolt,(Sandy And Dusty Spec.) | 1 |
| 01***40 | Bolt, Fuel Tank Mounting - Rear | 2 |
| 01***45 | Bolt, Fuel Tank Mounting - Front Right | 5 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Fuel Tank And Piping (For Cluster Gauge)(#12001-)
| 01***40 | Bolt, Fuel Tank Mounting - Rear | 2 |
| 01***45 | Bolt, Fuel Tank Mounting - Front Right | 1 |
| 01***50 | Bolt, Fuel Tank Mounting - Front Left | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Fuel Tank And Piping (For Monitor Panel)(#10001-11999)
| 01***16 | Bolt,(Sandy And Dusty Spec.) | 1 |
| 01***40 | Bolt, Fuel Tank Mounting - Rear | 2 |
| 01***45 | Bolt, Fuel Tank Mounting - Front Right | 3 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Fuel Tank And Piping (For Monitor Panel)(#12001-)
| 01***40 | Bolt, Fuel Tank Mounting - Rear | 2 |
| 01***45 | Bolt, Fuel Tank Mounting - Front Right | 1 |
| 01***50 | Bolt, Fuel Tank Mounting - Front Left | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Instrument Panel (For Cluster Gauge)
| 01***30 | Bolt | 1 |
| 01***20 | Screw | 2 |
| 01***20 | Screw | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Instrument Panel (For Monitor Panel)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 2 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 3 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Lamp License
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 2 |
| 08***08 | Grommet,(Without Beacon Lamp) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Monitor Panel
| 01***10 | Washer,(Except Japan) | 10 |
| 01***05 | Washer,(Except Japan) | 10 |
| 08***03 | Bulb? 3w,Turn Signal Lamp | 3 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Radiator
| 01***25 | Bolt,Without Revolution Sensor | 8 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 8 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Radiator And Piping
| 07***34 | O-Ring,(For Wt800e-1) (See Fig.A2110) | 1 |
| 07***18 | Plug,(Without Alarm Device) | 1 |
| 07***15 | Plug,(Without Air Conditioner) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Radiator Cover
| 01***30 | Bolt,Radio Controlled Slag Handling | 2 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 2 |
| 01***50 | Bolt, Radiator To Frame | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Sensor
| 08***05 | Switch,Engine Oil Pressure | 1 |
| 78***10 | Sensor,(With Speedometer) | 1 |
| 78***20 | Sensor,Torqflow And Water Temperature | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Engine Related Parts And Electrical System : Speedometer
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 2 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Frame And Guard
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Additional Counter Weight
| 41***10 | Screw | 2 |
| 41***11 | Washer | 2 |
| 41***51 | Weight, Counter (Additional) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Air Conditioner (1/5) (Nippon Denso)
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***35 | Bolt,(For Position Fixing) | 4 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 5 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Air Conditioner (2/5) (Nippon Denso)(#.-)
| 01***20 | Bolt,(With Auto Emergency Steering) | 6 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 5 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Air Conditioner (2/5) (Nippon Denso)(#10001-.)
| 01***20 | Bolt,(With Auto Emergency Steering) | 6 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 5 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Air Conditioner (3/5) (Nippon Denso) (For Cluster Gauge Type)
| 01***10 | Bolt,(With Auto Emergency Steering) | 4 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 3 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Air Conditioner (3/5) (Nippon Denso) (For Monitor Panel Type)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 07***59 | Clamp,See Fig. K4010-05a0 | 6 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Air Conditioner (4/5) (Nippon Denso)
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 11 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Air Conditioner (5/5) (Nippon Denso)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 1 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Air Conditioner Unit (1/5) (Nippon Denso)
| 08***00 | Fuse? 5a,(Mk-Ful-5) | 2 |
| 42***10 | Air Conditioner A.,(Komatsu-Yellow) | 1 |
| 42***10 | Case Ass'Y,(Komatsu-Yellow) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Air Conditioner Unit (2/5) (Nippon Denso)
| 42***50 | Evaporator | 1 |
| 42***60 | Coil Assembly, Heater | 1 |
| 42***10 | Tube, Liquid - To Receiver | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Air Conditioner Unit (3/5) (Nippon Denso)
| 42***60 | Blower Assembly | 1 |
| 42***10 | Motor Assembly | 1 |
| 42***20 | Packing | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Air Conditioner Unit (4/5) (Nippon Denso)
| 14***60 | Bolt,Fuse | 1 |
| 19***10 | Tank - Receiver Drier | 1 |
| 42***20 | Condenser Assembly | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Air Conditioner Unit (5/5) (Nippon Denso)
| 42***30 | Compressor Assembly | 1 |
| 42***10 | Compressor Sub-Assembly | 1 |
| 42***20 | Clutch Assembly | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Car Heater And Defroster (1/2) (Nippon Denso) (For Cluster Gauge Type)(#.-)
| 01***20 | Bolt,(With Auto Emergency Steering) | 6 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 8 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Car Heater And Defroster (2/2) (Nippon Denso) (For Cluster Gauge Type)(#.-)
| 01***10 | Bolt,(With Auto Emergency Steering) | 4 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 3 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 7 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Car Heater And Defroster (Daikin) (For Cluster Gauge Type)(#10001-.)
| 01***10 | Bolt,(With Auto Emergency Steering) | 4 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 3 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Car Heater And Defroster (Daikin) (For Monitor Panel Type)(#10001-.)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 5 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 12 |
| 01***12 | Screw | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Car Heater Unit (1/3) (Daikin)(#10001-.)
| 01***08 | Screw, Terminal | 12 |
| 01***12 | Screw,(Additional Sun Visor) | 2 |
| 01***08 | Screw | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Car Heater Unit (1/3) (Nippon Denso)(#.-)
| 41***10 | Heater Unit,(Without Joy Stick Steering) | 1 |
| 41***20 | Panel - Heater Controls | 1 |
| 41***30 | Case Ass'Y,(Komatsu-Yellow) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Car Heater Unit (2/3) (Daikin)(#10001-.)
| 01***10 | Screw,(For Wiper Switch Earth) | 2 |
| 01***04 | Nut,(For Air Conditioner Less) | 2 |
| 01***13 | Washer,Spring(For Wiper Switch Earth) | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Car Heater Unit (2/3) (Nippon Denso)(#.-)
| 42***60 | Coil Assembly, Heater | 1 |
| 42***30 | Hose - Shutoff Valve To Coil | 1 |
| 42***40 | Hose - Heater Coil To Radiator | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Car Heater Unit (3/3) (Daikin)(#10001-.)
| 01***16 | Bolt (With Air Heater & Conditioner) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***08 | Screw - Holder | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Car Heater Unit (3/3) (Nippon Denso)(#.-)
| 42***60 | Blower Assembly | 1 |
| 42***10 | Motor Assembly | 1 |
| 42***20 | Packing | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Console Box (For Cluster Type) (With Air Conditioner&Car Heater)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 4 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 5 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Console Box (For Cluster Type) (Without Air Conditioner And Car Heater)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 4 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 5 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Console Box (Monitor Panel Type) (With Air Conditioner And Car Heater)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 4 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 5 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Console Box (Monitor Panel Type) (Without Air Conditioner And Car Heater)
| 01***10 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 4 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 5 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Engine Ho0d (For Sandy And Dusty Terrain Spec.)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 41***40 | Bracket | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Engine Hood
| 01***20 | Bolt,(Large Capacity Type) (Std) | 2 |
| 01***25 | Bolt - Rear Guard Mounting | 8 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 15 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Fender And Ladder
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 12 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 16 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Floor Frame And Dashboard (For Cluster Gauge Type)
| 01***16 | Bolt,(For Slag Handling) | 4 |
| 01***10 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***12 | Bolt, Bolt,(No Need To Quick Shift) | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Floor Frame And Dashboard (For Monitor Panel Type)
| 01***10 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 9 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 10 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Floor Support (For Cluster Gauge Type)
| 01***55 | Bolt, Mount Lh Bracket | 3 |
| 01***30 | Bolt-Hex, Bolt,(With Center Guard) | 4 |
| 01***45 | Bolt, Mount Center Hinge Retainer (Upper) | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Floor Support (For Monitor Panel Type)
| 01***55 | Bolt, Mount Lh Bracket | 3 |
| 01***30 | Bolt-Hex, Bolt,(With Center Guard) | 4 |
| 01***45 | Bolt, Mount Center Hinge Retainer (Upper) | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Front Frame
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 8 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Front Wark Lamp
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 10 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***23 | Washer,(With Auto Emergency Steering) | 10 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Guard And Hand Rail (Without Cab)
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Instrument Panel Cover
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***05 | Nut,(For Air Conditioner Less), Nut | 4 |
| 01***11 | Nut,(Not Shown) | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Lubricator (Axle Support)
| 01***16 | Bolt,(Sandy And Dusty Spec.) | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
| 07***75 | Fitting,Grease (Without Lub. Piping) | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Mirror And Stay (With Cab)
| 01***20 | Bolt,(With Auto Emergency Steering) | 12 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 12 |
| 08***23 | Mirror,(For Japan) | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Noise Abatement Parts (1/5)
| 01***16 | Bolt, Mount Solenoid Valve | 12 |
| 01***65 | Bolt, Mount Tube To Divider Valve | 10 |
| 01***65 | Bolt - Transmission Tube Mounting | 10 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Noise Abatement Parts (2/5)
| 01***20 | Bolt - Mount Risers To Cab Floor | 10 |
| 01***18 | Boss, Rear Frame | 10 |
| 41***60 | Sheet | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Noise Abatement Parts (3/5)
| 41***50 | Plate,Vem | 1 |
| 41***60 | Sheet | 1 |
| 41***70 | Plate,Vem | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Noise Abatement Parts (4/5)
| 41***30 | Sheet | 2 |
| 41***20 | Plate,Vem | 2 |
| 41***30 | Plate,Vem | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Noise Abatement Parts (5/5)
| 41***60 | Plate,Vem | 1 |
| 41***70 | Plate,Vem | 1 |
| 41***90 | Plate,Vem | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Operator'S Seat (Deluxe)
| 01***20 | Bolt,(With Auto Emergency Steering) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Operator'S Seat (Rigid Type)
| 01***20 | Bolt,(With Auto Emergency Steering) | 4 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Radiator Guard
| 01***16 | Bolt (With Air Heater & Conditioner) | 4 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 10 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Rear Frame
| 01***50 | Bolt - Torque Converter Totransmission Mounting | 8 |
| 01***55 | Bolt,(For Long Track) | 8 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Rops Cab (Door) (6/8)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 2 |
| 01***20 | Bolt,(Without Maintenance Monitor) | 2 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 6 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Rops Cab (Door) (7/8)
| 01***16 | Screw | 1 |
| 01***12 | Screw,(Wa250-1p) | 1 |
| 01***12 | Screw,(Wa250-1p) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Rops Cab (Electrical) (8/8)
| 01***10 | Screw,(For Wiper Switch Earth) | 6 |
| 01***08 | Washer,(For Fixed Type Ripper) | 6 |
| 08***10 | Connector | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Rops Cab (Front) (2/8)
| 01***12 | Bolt, Bolt,(No Need To Quick Shift) | 6 |
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 4 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Rops Cab (Front) (3/8)
| 01***20 | Bolt,(With Auto Emergency Steering) | 20 |
| 01***20 | Screw | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 20 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Rops Cab (Interior Trim) (5/8)
| 01***12 | Screw,(For Side Lamp) (Not Shown) | 2 |
| 01***20 | Screw (Not Illustrated) | 2 |
| 01***12 | Screw,(Additional Sun Visor) | 8 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Rops Cab (Mounting Parts) (1/8)
| 01***80 | Bolt, Mount Cab To Rear Frame | 10 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 11 |
| 01***19 | Nut - M24 | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Rops Cab (Rear) (4/8)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 6 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 1 |
| 01***06 | Screw | 3 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Rops Canopy
| 01***85 | Bolt | 10 |
| 01***60 | Washer,(Without Rops Guard? Canopy) | 10 |
| 41***01 | Rops Canopy Ass'Y | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Seat Belt (For Variable Type)
| 02***19 | Bolt,Tether | 2 |
| 09***01 | Bolt,(For Shipping) | 3 |
| 09***02 | Washer,(For Shipping) | 3 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Under Guard
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 17 |
| 01***19 | Seat,(Welded To Revolving Frame) | 6 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 7 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Vandalism Protection
| 01***16 | Bolt (Welded) | 2 |
| 01***05 | Nut (Welded) | 2 |
| 01***23 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Frame And Guard : Washer Tank
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 3 |
Mark Plate? Tool And Kit
Komatsu : Wa250-1(S/N 10001-Up) : Mark Plate? Tool And Kit : Marks And Plates (Arabic) (For Cluster Gauge Type)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 09***00 | Plate? Caution,Fuel | 1 |
| 09***00 | Plate? Safety,Keep Out | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Mark Plate? Tool And Kit : Marks And Plates (Arabic) (For Monitor Panel Type)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 09***00 | Product Graphic, Important - Diesel Fuel | 1 |
| 09***35 | Plate? Name,(Limited Supply) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Mark Plate? Tool And Kit : Marks And Plates (English) (For Cluster Gauge Type)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 09***00 | Product Graphic, Important - Diesel Fuel | 1 |
| 09***00 | Plate? Safety,Keep Out | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Mark Plate? Tool And Kit : Marks And Plates (English) (For Monitor Panel Type)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 09***00 | Product Graphic, Important - Diesel Fuel | 1 |
| 09***35 | Plate? Name,Machine (Limited Supply) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Mark Plate? Tool And Kit : Marks And Plates (French) (For Cluster Gauge Type)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 09***00 | Plate, Caution, Fuel | 1 |
| 09***35 | Plate? Name,(Limited Supply) (For France) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Mark Plate? Tool And Kit : Marks And Plates (French) (For Monitor Panel Type)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 09***00 | Plate, Caution, Fuel | 1 |
| 09***35 | Plate? Name,(Limited Supply) (For France) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Mark Plate? Tool And Kit : Marks And Plates (Spanish) (For Cluster Gauge Type)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 09***00 | Plate? Caution,Inst | 1 |
| 09***35 | Plate? Name,Machine (Limited Supply) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Mark Plate? Tool And Kit : Marks And Plates (Spanish) (For Monitor Panel Type)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 09***00 | Plate? Caution,Inst | 1 |
| 09***35 | Plate? Name,Machine (Limited Supply) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Mark Plate? Tool And Kit : Service Kit
| 41***70 | O-Ring | 1 |
| 41***30 | O-Ring, Check Seat | 1 |
| 41***50 | O-Ring, Check Seat | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Mark Plate? Tool And Kit : Tool
| 07***50 | Pump, (Bellows Type) | 1 |
| 07***03 | Cartridge - Grease | 1 |
| 07***22 | Nozzle, Grease Pump | 1 |
S6d105-1tt Engine S/N 86423-Up
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Additionl Fuel Filer
| 07***12 | Gasket,Mechanical Pump Piping | 2 |
| 60***00 | Fuel Filter Ass'Y | 1 |
| 60***20 | Cartridge,Pref | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Air Cleaner And Mounting
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***50 | Bolt | 2 |
| 01***55 | Bolt,(For Suction? Reversible Fan) | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Air Compressor
| 61***12 | Air Compressor Ass'Y | 1 |
| DK***00 | Cylinder | 1 |
| DK***90 | Washer,Air Compressor | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Air Compressor And Piping
| 07***16 | Gasket,Air Compressor Piping | 1 |
| 07***89 | Clamp,(For Japan) | 2 |
| 61***30 | Elbow,(For Pc200) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Air Intake Manifold And Connection
| 01***16 | Bolt (Welded) | 2 |
| 01***20 | Bolt | 2 |
| 01***50 | Bolt,(For Trimming Dozer) | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Alternator (25a)
| 60***30 | Alternator A. (25a),(With Hardening Pulley) | 1 |
| KD***57 | Bearing,Ball? Front | 1 |
| KD***80 | Collar | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Alternator (35a)
| 60***20 | Alternator A. (35a),(With Hardening Pulley) | 1 |
| KD***57 | Bearing,Ball? Front | 1 |
| KD***80 | Collar | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Alternator (50a)
| 60***90 | Alternator A. (50a),(With Hardening Pulley) | 1 |
| SD***X0 | Washer | 1 |
| SD***X0 | Fan | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Alternator And Mounting (25a? 35a) (Bracket Less Type)(#92938-)
| 01***45 | Bolt,(For Suction? Reversible Fan) | 1 |
| 01***35 | Bolt,(Cold Weather Spec.) | 1 |
| 01***40 | Bolt,(Shim 3-Piece) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Alternator And Mounting (25a? 35a) (Bracket Mounting Type)(#86423-92937)
| 01***40 | Bolt,(Dust And Dirt Protection) | 1 |
| 01***70 | Bolt,(With Wear Guard) | 1 |
| 01***35 | Bolt,(Cold Weather Spec.) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Alternator And Mounting (50a) (Bracket Mounting Type)
| 01***30 | Bolt,(For France Noise Suppression) | 1 |
| 01***70 | Bolt,(With Wear Guard) | 1 |
| 01***35 | Bolt,(Cold Weather Spec.) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Camshaft And Tappet
| 01***25 | Bolt,(Without Auto Priming System) | 2 |
| 01***20 | Bolt,(Forwarded Individually Parts) | 2 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Corrosion Resistor And Piping
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 4 |
| 01***29 | Washer,Spring (Cold Weather Spec.) | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Crankshaft (With Air Conditioner)
| 01***70 | Bolt, Heater Hose Clip | 6 |
| 01***45 | Bolt,Nylock | 1 |
| 01***70 | Bolt,(For 75a Alternator) | 6 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Crankshaft (Without Air Conditioner)
| 01***25 | Bolt - Rear Guard Mounting | 6 |
| 01***45 | Bolt,Nylock | 1 |
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 6 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Cylinder Block
| 01***30 | Bolt,(For France Noise Suppression) | 3 |
| 01***45 | Bolt,(For Suction? Reversible Fan) | 1 |
| 01***20 | Bolt,(Used When Towing Winch) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Cylinder Head
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 2 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Cylinder Head Cover
| 07***23 | Clamp - Hose | 1 |
| 07***00 | Clip | 1 |
| 07***30 | Clip | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Exhaust Manifold And Turbocharger
| 01***60 | Bolt (M10-1.50x60) | 1 |
| 01***00 | Bolt (M10-1.50x100) | 9 |
| 01***15 | Bolt | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Flywheel And Flywheel Housing(#86423-92027)
| 01***40 | Bolt,(Dust And Dirt Protection) | 9 |
| 01***45 | Bolt,(Cold Terrain Spec.) | 8 |
| 01***55 | Bolt,(For France Noise Suppression) | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Flywheel And Flywheel Housing(#92028-)
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 2 |
| 01***40 | Bolt,(Dust And Dirt Protection) | 9 |
| 01***45 | Bolt,(Cold Terrain Spec.) | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Front Cover And Gear
| 01***22 | Bolt,(Cold Terrain Spec.) | 4 |
| 01***25 | Bolt,(Without Auto Priming System) | 4 |
| 01***60 | Bolt,(Without Alternator Bracket) | 10 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Fuel Filter And Piping
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 2 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Fuel Injection Pump (Coupling)
| DK***00 | Bolt | 1 |
| DK***00 | Washer,Lock | 2 |
| DK***00 | Coupling,Cross | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Fuel Injection Pump (Feed Pump)
| DK***20 | Bolt, Joint | 1 |
| DK***20 | Pump,Priming | 1 |
| DK***20 | Housing | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Fuel Injection Pump (Governor) (1/2)
| DK***00 | Spring,Governor | 1 |
| DK***20 | Guide Lever Ass'Y | 1 |
| DK***00 | Adapter | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Fuel Injection Pump (Governor) (2/2)
| DK***80 | Shim? 0.5mm | 0 |
| DK***00 | Washer,Spring | 1 |
| DK***40 | Gasket,Air Compressor | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Fuel Injection Pump (Pump)
| 61***60 | Injection Pump Ass'Y | 1 |
| 61***60 | Injection Pump Ass'Y,(Farming Spec.) | 1 |
| DK***10 | Washer,Spring | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Fuel Injection Pump And Piping (With Air Compressor)
| 01***70 | Bolt | 4 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 1 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Fuel Injection Pump And Piping (Without Air Compressor) (Farming Spec.)
| 01***70 | Bolt | 4 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 1 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Fuel Nozzle And Spill Pipe
| 01***55 | Bolt,(For Trimming Dozer) | 12 |
| 01***55 | Screw | 12 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 12 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Gasket Kit
| 07***18 | O-Ring,(See Fig.1601-29?1602-17) | 1 |
| 07***70 | O-Ring,(For Intake Air Cover) | 1 |
| 07***00 | O-Ring,(F4350-65a1 -5 ) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Lubricating Oil Cooler
| 01***25 | Bolt,(Without Auto Priming System) | 5 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 2 |
| 01***35 | Bolt,(Without Auto Priming System) | 16 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Lubricating Oil Cooler (Cold Terrain Spec.)
| 01***25 | Bolt,(Without Auto Priming System) | 7 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 2 |
| 01***35 | Bolt,(Without Auto Priming System) | 12 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Lubricating Oil Filter And Mounting
| 01***70 | Bolt | 1 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 5 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Lubricating Oil Piping
| 01***16 | Bolt,(For Slag Handling) | 2 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 1 |
| 01***40 | Bolt,(For Position Fixing) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Lubricating Oil Pump And Suction Pipe
| 01***25 | Bolt,(Without Auto Priming System) | 3 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 1 |
| 01***45 | Bolt,(S6d155-4b) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Muffler And Mounting
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Oil Pan (Cold Terrain Spec.) (With Oil Level Sensor)
| 01***22 | Bolt,(Cold Terrain Spec.) | 29 |
| 01***25 | Bolt,(Without Auto Priming System) | 8 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Oil Pan (Cold Terrain Spec.) (Without Oil Level Sensor)
| 01***22 | Bolt,(Cold Terrain Spec.) | 29 |
| 01***25 | Bolt,(Without Auto Priming System) | 8 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Oil Pan (With Oil Level Sensor)
| 01***22 | Bolt,(Cold Terrain Spec.) | 29 |
| 01***25 | Bolt,(Without Auto Priming System) | 8 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Oil Pan (Without Oil Level Sensor)
| 01***22 | Bolt,(Cold Terrain Spec.) | 29 |
| 01***25 | Bolt,(Without Auto Priming System) | 8 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Piston And Connecting Rod
| 04***18 | Ring, Retaining | 2 |
| 61***40 | Crank Pin Metal A | 6 |
| 61***01 | Connecting Rod Ass'Y,(B) | 6 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Rocker Arm
| 01***80 | Bolt,(Shim 5 Pieces Over) | 2 |
| 01***06 | Nut, Regular Hexagon (M8-1.25) | 12 |
| 01***36 | Washer,Radio Controlled Slag Handling | 6 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Solenoid And Mounting
| 01***20 | Bolt | 4 |
| 01***50 | Bolt - Torque Converter Totransmission Mounting | 2 |
| 01***20 | Bolt,See Fig. K4010-11a0 | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Starting Motor (5.5kw)
| 60***90 | Starting Motor Ass'Y,(5.5kw) | 1 |
| KD***30 | Bracket,Center | 1 |
| KD***50 | Clutch Ass'Y,Over Running | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Starting Motor (7.5kw)
| 60***50 | Starting Motor Ass'Y,(7.5kw) | 1 |
| KD***60 | Shift Lever Assembly | 1 |
| KD***40 | Spring,Spring | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Starting Motor And Mounting (5.5kw?7.5kw)
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 3 |
| 01***30 | Bolt, Mounting - Front Hand Rails | 3 |
| 01***36 | Washer,Radio Controlled Slag Handling | 3 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Turbocharger
| 61***00 | Turbocharger Ass'Y,(T04b-59) | 1 |
| GA***00 | Clamp | 3 |
| GA***01 | Bolt | 6 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Turbocharger Lubricating Oil Piping
| 01***22 | Bolt,(Cold Terrain Spec.) | 2 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 2 |
| 01***20 | Bolt,(Forwarded Individually Parts) | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Water Pump And Cooling Fan
| 01***16 | Bolt,(For Slag Handling) | 2 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 3 |
| 01***55 | Bolt,(For Suction? Reversible Fan) | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : S6d105-1tt Engine S/N 86423-Up : Water Separator
| 07***60 | O-Ring,(For Pc750?800?1800) (A2610) | 1 |
| 60***00 | Water Separator A.,(4d105-5h? 4d105-5t) | 1 |
| 60***60 | Plug,Drain (4d105-5h? 4d105-5t) | 1 |
Special Application Parts
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Battery And Battery Box (Tbg/Abe Spec.)
| 01***30 | Bolt,(Cold Terrain Spec.) | 1 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 16 |
| 01***65 | Bolt, Mount Radiator To Frame (Bottom) | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Booster Oil Piping (Tbg/Abe Spec.)
| 01***35 | Bolt,(For Position Fixing) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Brake Oil Piping (Front) (Tbg/Abe Spec.)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Brake Oil Piping (Rear) (Tbg/Abe Spec.)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 07***23 | O-Ring,(F4350-68a0 -13 ) | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Check Valve (Abe Spec.)
| 07***35 | O-Ring, At Lower Oil Cooler Inlet Port | 1 |
| 70***11 | Body | 1 |
| 70***20 | Poppet | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Check Velve (Abe Spec.)
| 04***12 | Ring,Split, Ring-Snap | 1 |
| 20***10 | Spring | 1 |
| 20***20 | Seat | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Divider Valve (Abe Spec.)
| 01***25 | Bolt,Without Revolution Sensor | 2 |
| 01***30 | Screw | 2 |
| 01***70 | Screw | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Electrical System (Console Box? R.H.) (Tbg/Abe Spec.)
| 01***12 | Bolt, Bolt,(No Need To Quick Shift) | 9 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 4 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Electrical System (Front Lamp) (Tbg/Abe Spec.)
| 01***10 | Bolt,(With Auto Emergency Steering) | 16 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Electrical System (Front Line) (Tbg/Abe Spec.)
| 01***12 | Bolt,(With Cylinder Cover) | 1 |
| 01***18 | Bolt | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 16 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Electrical System (Main Line) (Tbg/Abe Spec.)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 2 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 14 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Electrical System (Rear Lamp) (Tbg/Abe Spec.)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 8 |
| 01***06 | Screw | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Emergency Steering Piping (Tank To Valve) (Abe Spec.) (1/3)
| 01***85 | Bolt, Mount Solenoid Valve Body | 2 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 2 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Emergency Steering Piping (Valve To Tank) (Abe Spec.) (3/3)
| 01***80 | Bolt, Mount Strainer Flange | 2 |
| 01***25 | Bolt,Without Revolution Sensor | 5 |
| 01***60 | Bolt, Mount Tube To Switch Pump | 8 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Emergency Steering Piping (Valve To Valve) (Abe Spec.)(2/3)
| 01***30 | Bolt,(Cold Terrain Spec.) | 4 |
| 01***90 | Bolt, Fan Mounting | 4 |
| 01***00 | Bolt, Mount Back-Up Alarm | 8 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Emergency Steering Pump (Abe Spec.)
| 04***18 | Ring, Retaining | 1 |
| 70***10 | Pump Assembly (See Pg 03-046) | 1 |
| 70***10 | Seal, Oil | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Engine Relater Parts (Tbg/Abe Spec.)
| 07***03 | Tube | 1 |
| 07***11 | Sleeve,(For Kt1150 Engine) | 2 |
| 07***10 | Nut,(For Kt1150 Engine) | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Fender And Ladder (Tbg/Abe Spec.)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 14 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 18 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 6 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Front Frame (For Parallel Link)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 8 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Front Frame (Tbg/Abe Spec.)
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Full Fender (Tbg/Abe Spec.)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 12 |
| 01***40 | Bolt,(With Service Valve R.H.) | 8 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Hydraulic Piping (Dump Cylinder Line) (For Parallel Link)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***05 | Bolt, Mount Tube | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Hydraulic Piping (Lift Cylinder Line) (For Parallel Link)
| 01***45 | Screw | 16 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 6 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Hydraulic Piping (Lift Cylinder Line) (Tbg/Abe Spec.)
| 01***45 | Screw | 16 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 6 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Hydraulic Tank (Abe Spec.)
| 01***30 | Bolt,Radio Controlled Slag Handling | 4 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 4 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Instrument Panel (Tbg/Abe Spec.)
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 2 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 3 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Lift Arm (Tbg/Abe Spec.)
| 01***25 | Bolt,(For High High Lift) | 8 |
| 01***08 | Washer,(For 1 Attachment And Pat) | 8 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 6 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Lift Arm Related Parts (For Parallel Link)
| 01***25 | Bolt,(For High High Lift) | 8 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 2 |
| 07***75 | Fitting,Grease (Without Lub. Piping) | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Lift Cylinder (Tbg/Abe Spec.)
| 01***75 | Bolt | 4 |
| 01***68 | Washer,Spring (Kit) | 4 |
| 07***25 | O-Ring,Cylinder Head | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Mark And Paltes (Germany) (Tbg/Abe Spec.)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 09***00 | Plate? Caution,Fuel | 1 |
| 09***35 | Plate? Name,(Limited Supply) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Monitor Panel (Tbg/Abe Spec.)
| 01***10 | Washer,(Except Japan) | 10 |
| 01***05 | Washer,(Except Japan) | 10 |
| 08***03 | Bulb? 3w,Turn Signal Lamp | 3 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Noise Abatement (Tbg/Abe Spec.)
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 6 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 10 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Operator'S Seat (Tbg/Abe Spec.)
| 01***20 | Bolt,(With Auto Emergency Steering) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Rear Frame (Tbg/Abe Spec.)
| 01***50 | Bolt - Torque Converter Totransmission Mounting | 8 |
| 01***55 | Bolt,(For Long Track) | 8 |
| 01***25 | Bolt,Without Revolution Sensor | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Security Valve (Abe Spec.)
| 07***34 | O-Ring,(F2310-59a0 -4 ) | 2 |
| 42***00 | Valve Ass'Y,Security | 1 |
| 42***30 | Spring | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Under Guard (Tbg/Abe Spec.)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 17 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 7 |
| 17***70 | Washer (Isolator Mounting) | 10 |
Komatsu : Wa250-1(S/N 10001-Up) : Special Application Parts : Wheel Stopper (Tbg/Abe Spec.)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 4 |
| 04***10 | Pin,Cotter? (For Ripper) | 2 |
Steering And Control Systems
Komatsu : Wa250-1(S/N 10001-Up) : Steering And Control Systems : Divider Valve (For Emergency Steering)
| 01***25 | Bolt,Without Revolution Sensor | 2 |
| 01***30 | Screw | 2 |
| 01***70 | Screw | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Steering And Control Systems : Emergency Steering Piping (1/2)
| 01***85 | Bolt, Mount Solenoid Valve Body | 2 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 2 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Steering And Control Systems : Emergency Steering Piping (2/2)
| 01***00 | Bolt, Mount Back-Up Alarm | 8 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 01***32 | Washer, (Without Emergency Steering) | 16 |
Komatsu : Wa250-1(S/N 10001-Up) : Steering And Control Systems : Emergency Steering Pump
| 04***18 | Ring, Retaining | 1 |
| 70***10 | Pump Assembly (See Pg 03-046) | 1 |
| 70***10 | Seal, Oil | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Steering And Control Systems : Steering Column (For Transmission Control Electrical Type)
| 01***40 | Screw | 2 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 2 |
| 01***23 | Washer,(With Auto Emergency Steering) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Steering And Control Systems : Steering Column (For Transmission Control Mechanical Type)
| 01***40 | Screw | 2 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 2 |
| 01***23 | Washer,(With Auto Emergency Steering) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Steering And Control Systems : Steering Control (For Transmission Control Mechanical Type) : Unit_02_of_02
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 3 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***10 | Bolt, Fan Mounting | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Steering And Control Systems : Steering Control (For Transmission Control Mechanical Type) : Unit_01_of_02
| 01***30 | Bolt,Radio Controlled Slag Handling | 1 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Steering And Control Systems : Steering Cylinder(#10001-10623)
| 07***75 | O-Ring,Cylinder Head | 1 |
| 07***75 | Ring,Back-Up (Kit) | 1 |
| 07***08 | Plug,(For W/O. Corrosion Resistor) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Steering And Control Systems : Steering Cylinder(#10624-)
| 07***70 | O-Ring,(For Intake Air Cover) | 1 |
| 07***65 | O-Ring,(F5350-62a0 -14 ) | 1 |
| 07***75 | O-Ring,Cylinder Head | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Steering And Control Systems : Steering Oil Piping (1/2)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Steering And Control Systems : Steering Oil Piping (2/2)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***11 | Nut,(With Under Mirror) | 20 |
Komatsu : Wa250-1(S/N 10001-Up) : Steering And Control Systems : Steering Valve
| 41***30 | Cap, End | 1 |
| 41***60 | Plate, Spacer | 1 |
| 41***70 | Drive | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Steering And Control Systems : Transmission Control Switch (For Electrical Type)
| 01***10 | Screw, Mount Wire Assembly | 2 |
| 04***20 | Pin, Spring Retainer | 2 |
| 04***17 | Ball,Detent | 1 |
Torque Converter And Transmission
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : 1st Clutch (Electrical Control Type)
| 41***41 | Gear, 1st | 1 |
| 41***33 | Spring, Wave | 4 |
| 41***40 | Ring, Snpa | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : 1st Clutch (Mechanical Control Type)
| 41***41 | Gear, 1st | 1 |
| 41***33 | Spring, Wave | 4 |
| 41***40 | Ring, Snpa | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : 2nd Clutch (Electrical Control Type)
| 01***30 | Bolt,Radio Controlled Slag Handling | 1 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 1 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 3 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : 2nd Clutch (Mechanical Control Type)
| 01***30 | Bolt,Radio Controlled Slag Handling | 1 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 1 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 3 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : 3rd Clutch (Electrical Control Type)
| 06***11 | Bearing,Ball | 1 |
| 41***31 | Gear, 3rd | 1 |
| 41***01 | Clutch Assembly, 1st And 3rd | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : 3rd Clutch (Mechanical Control Type)
| 06***11 | Bearing,Ball | 1 |
| 41***31 | Gear, 3rd | 1 |
| 41***01 | Clutch Assembly, 1st And 3rd | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : 4th Clutch (Electrical Control Type)
| 06***10 | Bearing,(Wa250-1m? 1p) | 1 |
| 06***10 | Bearing,(Wa250-1m? 1p) | 1 |
| 41***72 | Shaft And Housing Ass'Y | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : 4th Clutch (Mechanical Control Type)
| 06***10 | Bearing,(Wa250-1m? 1p) | 1 |
| 06***10 | Bearing,(Wa250-1m? 1p) | 1 |
| 41***72 | Shaft And Housing Ass'Y | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : Forward Clutch (Electrical Control Type)
| 06***10 | Bearing,(Wa250-1m? 1p) | 1 |
| 41***14 | Shaft And Housing Assembly | 1 |
| 41***32 | Housing,Forward And Reverse | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : Forward Clutch (Mechanical Control Type)
| 06***10 | Bearing,(Wa250-1m? 1p) | 1 |
| 41***14 | Shaft And Housing Assembly | 1 |
| 41***32 | Housing,Forward And Reverse | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : Hydraulic Pump (Torqflow Transmission) (1/2) (Electrical Control Type)
| 04***12 | Ring, Snap | 1 |
| 04***18 | Ring, Retaining | 1 |
| 70***10 | Pump Assembly, Front Charging (Sal032) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : Hydraulic Pump (Torqflow Transmission) (1/2) (Mechanical Control Type)
| 04***12 | Ring, Snap | 1 |
| 04***18 | Ring, Retaining | 1 |
| 70***10 | Pump Assembly, Front Charging (Sal032) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : Hydraulic Pump (Torqflow Transmission) (2/2) (Electrical Control Type)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 8 |
| 07***38 | Ring, Seal - Between Sections | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : Hydraulic Pump (Torqflow Transmission) (2/2) (Mechanical Control Type)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 8 |
| 07***38 | Ring, Seal - Between Sections | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : Output Shaft (Electrical Control Type)
| 01***25 | Bolt - Rear Guard Mounting | 4 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 6 |
| 01***40 | Bolt,(Dust And Dirt Protection) | 6 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : Output Shaft (Mechanical Control Type)
| 01***25 | Bolt - Rear Guard Mounting | 4 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 6 |
| 01***40 | Bolt,(Dust And Dirt Protection) | 6 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : Reverse Clutch (Electrical Control Type)
| 41***51 | Piston, Forward | 1 |
| 41***60 | Ring,Seal? Reverse Piston | 1 |
| 41***33 | Spring, Wave | 9 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : Reverse Clutch (Mechanical Control Type)
| 41***51 | Piston, Forward | 1 |
| 41***60 | Ring,Seal? Reverse Piston | 1 |
| 41***33 | Spring, Wave | 9 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : Torqflow Transmission Piping
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 5 |
| 01***32 | Washer,(With Auto Emergency Steering) | 5 |
| 07***34 | O-Ring, At Transmission Filter | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : Torque Converter (Electrical Control Type)
| 01***25 | Screw | 24 |
| 01***25 | Bolt, Mount Cover | 6 |
| 01***55 | Screw | 8 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : Torque Converter (Mechanical Control Type)
| 01***25 | Screw | 24 |
| 01***25 | Bolt, Mount Cover | 6 |
| 01***55 | Screw | 8 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : Transmission Case (1/2) (Electrical Control Type)
| 01***30 | Bolt,(For France Noise Suppression) | 12 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 5 |
| 01***32 | Washer,(With Auto Emergency Steering) | 12 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : Transmission Case (1/2) (Mechanical Control Type)
| 01***30 | Bolt,(For France Noise Suppression) | 12 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 5 |
| 01***32 | Washer,(With Auto Emergency Steering) | 12 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : Transmission Case (2/2) (Electrical Control Type)
| 01***40 | Bolt,(Dust And Dirt Protection) | 4 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 20 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : Transmission Case (2/2) (Mechanical Control Type)
| 01***40 | Bolt,(Dust And Dirt Protection) | 4 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 18 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : Transmission Control Lever (Mechanical Type) : Unit_01_of_02
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***25 | Bolt,Without Revolution Sensor | 2 |
| 01***60 | Bolt,(For Japan And Sweden) | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : Transmission Control Lever (Mechanical Type) : Unit_02_of_02
| 01***45 | Bolt,(Cold Terrain Spec.) | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : Transmission Control Valve (1/3) (Electrical Control Type)
| 01***60 | Bolt,(Without Alternator Bracket) | 1 |
| 01***75 | Bolt,(See Fig.0142) | 1 |
| 01***30 | Bolt,(For France Noise Suppression) | 12 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : Transmission Control Valve (1/3) (Mechanical Control Type)
| 01***60 | Bolt,(Without Alternator Bracket) | 1 |
| 01***75 | Bolt,(See Fig.0142) | 1 |
| 01***30 | Bolt,(For France Noise Suppression) | 12 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : Transmission Control Valve (2/3) (Electrical Control Type)
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
| 01***55 | Bolt,(For Suction? Reversible Fan) | 7 |
| 02***04 | Plug | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : Transmission Control Valve (2/3) (Mechanical Control Type)
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
| 01***45 | Bolt,(For Suction? Reversible Fan) | 2 |
| 01***55 | Bolt,(For Suction? Reversible Fan) | 7 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : Transmission Control Valve (3/3) (Electrical Control Type)
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***05 | Bolt (M10-1.50x105) | 1 |
| 01***10 | Bolt (M10x1.50x10) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : Transmission Control Valve (3/3) (Mechanical Control Type)
| 01***16 | Screw,(Sandy And Dusty Terrain S.) | 4 |
| 01***10 | Bolt | 2 |
| 01***16 | Bolt | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : Transmission Oil Filter (Electrical Control Type)
| 07***23 | O-Ring,(F4350-68a0 -13 ) | 1 |
| 07***09 | Plug, Oil Drain | 1 |
| 41***00 | Filter Assembly (See Pg F-058) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : Transmission Oil Filter (Mechanical Control Type)
| 07***23 | O-Ring,(F4350-68a0 -13 ) | 1 |
| 07***09 | Plug, Oil Drain | 1 |
| 41***00 | Filter Assembly (See Pg F-058) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : Transmission Piping (Electrical Control Type)
| 01***35 | Bolt,(Without Auto Priming System) | 4 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 1 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Torque Converter And Transmission : Transmission Piping (Mechanical Control Type)
| 01***35 | Bolt,(Without Auto Priming System) | 4 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 1 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 4 |
Work Equipment
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment : Bellcrank
| 01***25 | Bolt,(For High High Lift) | 5 |
| 01***08 | Washer,(For 1 Attachment And Pat) | 8 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment : Cutting Edge
| 01***60 | Washer (Kit) | 8 |
| 02***85 | Bolt | 8 |
| 02***25 | Nut, 1 In. Nc | 8 |
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment : Cutting Edge (Segment Type)
| 01***60 | Washer (Kit) | 14 |
| 02***90 | Bolt, Mount Corner Adapters | 14 |
| 02***25 | Nut, 1 In. Nc | 14 |
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment : Excavating Bucket? 1.8m3
| 41***41 | Plate,R.H. (Welded) | 1 |
| 41***31 | Plate,L.H. (Welded) | 1 |
| 41***00 | Bucket,1.8m3 | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment : Filler Blade
| 01***30 | Bolt,Radio Controlled Slag Handling | 1 |
| 01***75 | Bolt | 1 |
| 01***70 | Capscrew - M12 | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment : Lift Arm
| 01***25 | Bolt,(For High High Lift) | 8 |
| 01***08 | Washer,(For 1 Attachment And Pat) | 8 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 6 |
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment : Light Material Bucket? 2.7m3
| 41***31 | Plate,L.H. (Welded) | 1 |
| 41***41 | Plate,R.H. (Welded) | 1 |
| 41***00 | Bucket,2.7m3 | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment : Loose Material Bucket? 2.0m3
| 41***30 | Plate,L.H. (Welded) | 1 |
| 41***40 | Plate,R.H. (Welded) | 1 |
| 41***50 | Plate (Welded) | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment : Loose Material Bucket? 2.1m3
| 41***00 | Bucket | 1 |
| 41***31 | Plate,L.H. (Welded) | 1 |
| 41***41 | Plate,R.H. (Welded) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment : Tooth (Tip Type)
| 01***80 | Washer,(For R.H. Steering) | 2 |
| 02***25 | Nut, 1 In. Nc | 2 |
| 09***95 | Bolt, Mount Corner Adapter Or Teeth | 14 |
Work Equipment Control System
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment Control System : 2-Spool Control Valve (1/2)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***12 | Bolt | 4 |
| 01***30 | Bolt | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment Control System : 2-Spool Control Valve (2/2)
| 01***05 | Nut,(For Air Conditioner Less), Nut | 1 |
| 07***12 | O-Ring (Itl) | 1 |
| 07***12 | Ring,Back-Up; Was 07001-02012, Ring,Back-Up (Itl) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment Control System : 3-Spool Control Valve (1/2)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***12 | Bolt | 6 |
| 01***25 | Bolt, Seal Cover Mounting | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment Control System : 3-Spool Control Valve (2/2)
| 01***05 | Nut,(For Air Conditioner Less), Nut | 1 |
| 07***12 | O-Ring (Itl) | 1 |
| 07***12 | Ring,Back-Up; Was 07001-02012, Ring,Back-Up (Itl) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment Control System : Attachment Control Lever
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 2 |
| 01***12 | Washer,(With Body Positioner) | 1 |
| 01***16 | Washer,(With Water Separator) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment Control System : Boom Kick Out And Bucket Positioner
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment Control System : Check Valve
| 07***35 | O-Ring, At Lower Oil Cooler Inlet Port | 1 |
| 70***11 | Body | 1 |
| 70***20 | Poppet | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment Control System : Dump Cylinder
| 01***40 | Bolt,(With Service Valve R.H.) | 6 |
| 01***85 | Bolt | 4 |
| 01***83 | Washer, Spring | 4 |
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment Control System : Hydraulic Piping (Dump Cylinder Line) (4/4)
| 01***60 | Bolt (M10-1.50x60) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment Control System : Hydraulic Piping (For Front Attachment) (1/2)
| 01***30 | Bolt,(For Mechanical Governor) | 8 |
| 01***90 | Bolt, Fan Mounting | 6 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment Control System : Hydraulic Piping (For Front Attachment) (2/2)
| 01***30 | Bolt,(For Mechanical Governor) | 8 |
| 01***35 | Bolt,(For Position Fixing) | 16 |
| 01***45 | Screw | 8 |
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment Control System : Hydraulic Piping (Lift Cylinder Line) (3/4)
| 01***45 | Screw | 16 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 6 |
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment Control System : Hydraulic Piping (Tank To Pump To Valve) (1/4)
| 01***30 | Bolt,(Cold Terrain Spec.) | 4 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 2 |
| 01***35 | Bolt,(For Position Fixing) | 8 |
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment Control System : Hydraulic Piping (Valve To Tank) (2/4)
| 01***25 | Bolt - Rear Guard Mounting | 1 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 1 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment Control System : Hydraulic Pump (Lift? Dump And Steering) (1/2)
| 04***12 | Ring, Snap | 1 |
| 04***18 | Ring, Retaining | 1 |
| 70***10 | Pump Assembly (Sal50) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment Control System : Hydraulic Pump (Lift? Dump And Steering) (2/2)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 8 |
| 07***38 | Ring, Seal - Between Sections | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment Control System : Hydraulic Tank
| 01***30 | Bolt,Radio Controlled Slag Handling | 4 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 4 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment Control System : Hydraulic Tank (Noise Suppression For Ec)
| 01***30 | Bolt,Radio Controlled Slag Handling | 4 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment Control System : Lift Cylinder
| 01***75 | Bolt | 4 |
| 01***68 | Washer,Spring (Kit) | 4 |
| 07***25 | O-Ring,Cylinder Head | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment Control System : Mono Lever (1/2)
| 01***16 | Bolt (Welded) | 6 |
| 01***25 | Bolt (M6-1.00x25) | 1 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 2 |
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment Control System : Mono Lever (2/2)
| 01***25 | Bolt,Without Revolution Sensor | 1 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 1 |
| 04***20 | Pin, Spring Retainer | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment Control System : Priority Valve
| 41***10 | Housing | 1 |
| 41***20 | Spool | 1 |
| 41***40 | Relief Valve Assembly | 1 |
Komatsu : Wa250-1(S/N 10001-Up) : Work Equipment Control System : Work Equipment Control Lever
| 01***70 | Bolt, Mount Bracket And Oil Inlet Tube, Bolt | 2 |
| 01***05 | Nut | 3 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 4 |
WA250-1(S/N 10001-UP) serial number reference
The PIN/serial plate on this loader sits on the front frame, right-hand (curb) side, typically behind or near the front fender close to the articulation joint. A full serial is also stamped directly into the frame steel below the plate as a backup if the plate is missing or painted over. Read the serial as a 5-6 digit number that may or may not carry a leading letter (commonly A); the leading letter marks a later continuation of the same production run rather than a different model, so match the whole number against the shop manual's stated serial break before pulling parts.
| Prefix | Identifies | Notes |
|---|---|---|
| 10001 | WA250-1 base production block (no letter prefix) | Plain numeric serial block, no alpha prefix. Matches the factory shop-manual scope for this range (combined WA200-1/WA250-1 manual covering SN 10001-Up). Fitted with a 6D105-family diesel; a turbocharged S6D105-1 variant is tied to this range from engine SN 86423-Up in parts cross-reference documentation, though that specific turbo suffix is not repeated in the shop-manual listing itself - treat the exact engine suffix as needing dealer/parts-book confirmation for a given unit. |
| A10509 | WA250-1 continued production run, A-prefixed | Same base model and same SN 10001-UP production run, not a separate configuration. Numbering picks up with an A prefix partway through the run rather than starting a new model code. Same 6D105-family engine as the plain-numeric block. Found in only one parts/engine cross-reference guide - confirm with dealer before relying on it for a specific unit. |
Frequently asked questions
What engine powers the Komatsu WA250-1 (S/N 10001-UP)?
It uses a Komatsu S6D105-1 turbocharged inline six-cylinder diesel rated at approximately 97 kW (130 hp) gross. The engine is mechanically governed through an inline injection pump and carries no electronic control module or fault-code system.
What is the operating weight of the WA250-1 (S/N 10001-UP)?
Operating weight runs roughly 10 to 11 t (about 22,000 to 24,250 lb). Factory-class spec sheets tend toward the higher figure while some dealer listings for actual units in this serial range cite the lower one, so treat it as varying by configuration and source rather than one fixed number.
What replaced the Komatsu WA250-1 (S/N 10001-UP)?
Komatsu moved directly to the WA250-3 generation in the early-to-mid 1990s (no "-2" designation was used for this model), followed by -3A, -3L, -3MC, -3X, and -5L variants on updated platforms, and much later by hydrostatic-drive PT and -6 generations. None of those later machines share this loader's torque-converter powershift driveline or its mechanically governed engine.
What WA250-1(S/N 10001-UP) owners discuss
What engine powers the WA250-1 (S/N 10001-UP), and is there a known weak point owners mention long-term?
This early WA250 generation runs the Komatsu S6D105-series turbocharged 6-cylinder diesel shared across the WA200-1/WA250-1/WA300-1/WA320-1 line of that era, not the naturally-aspirated small-frame 6D95/6D105 used elsewhere in Komatsu's lineup. Owners and shops consistently point to the injector nozzle sealing at the head as the recurring weak spot: the seal below the nozzle hardens or crushes with age and starts weeping fuel or combustion gas, which shows up as coolant/oil contamination or a rough cylinder rather than a coded fault. Most shops reseat the nozzle with fresh packing rather than replace the whole injector. This is a mechanically governed, pre-electronic engine, so there are no fault codes to lean on - diagnose by smoke color, fluid contamination, and a compression check.
Does the WA250-1 use the same hydrostatic transmission as newer WA250 loaders?
No, and this is a generation split that trips people up when reading general WA250 troubleshooting threads. The WA250-1 (and the WA250-3 that followed it) drive through a conventional powershift transmission with a torque converter and four forward/reverse speeds, not the electronically controlled hydrostatic drive Komatsu introduced later on the PZ and -6 generations. Any advice about hydrostatic pump wear or HST tune-ups belongs to the newer machines and does not apply here. On this torque-converter transmission, age-related complaints are delayed or harsh shifts and slipping under load, usually traced to a worn transmission control valve, low charge pressure, or overdue fluid and filter service rather than a failed converter itself.
What hydraulic symptoms show up most often on an older WA250-1?
Loader-arm and lift-cylinder drift is the complaint owners raise most. On a machine this old, cylinder seal sets are well past their service life, so an arm or bucket that creeps down over a few minutes with the control centered points to internal seal bypass rather than a failing pump. Test it both loaded and empty - holding empty but drifting loaded confirms worn seals. The other pattern reported: hydraulic response (slow lift, soft bucket curl) fades gradually as the oil gets contaminated, and the oil can still look and smell acceptable well after real wear has started, so going by hours and maintenance history matters more than a visual oil check. Because arm drift affects a suspended load and bystander safety, have your dealer verify cylinder condition before working under a raised bucket or lift arm.
What electrical or gauge problems come up on this era of Komatsu loader?
These are simple analog-gauge machines with no engine control module, so electrical complaints almost always trace back to age and corrosion rather than electronics. The recurring thread across owners and shops is corroded or loose wiring harness connectors, especially near the battery and instrument cluster, causing intermittent gauges, hard starting, or warning lights that come and go. Water temperature and transmission oil pressure senders are the usual suspects when one gauge misbehaves on its own - they corrode internally and read wrong before failing completely. Cleaning connections and applying dielectric grease resolves a good share of these complaints before any sender or harness section needs replacing.
What wear points show up in the center pivot, axles, and tires on a machine this old?
The articulating center joint is the top used-buying concern on any WA-series loader, and this generation is no exception - decades of short loading cycles wear the center pins and bushings, and a neglected grease schedule (broken zerks, skipped intervals) accelerates it noticeably. Check for play with the loader articulated fully both directions and the engine off. Front and rear final drives are the other common wear area: metal in the drain oil or debris on the filter/screen signals internal gear or bearing wear from overloading, hard duty cycles, or contaminated lubricant rather than simple age. Tires cost more than buyers expect on this class of loader - uneven wear, sidewall cuts, and mismatched tread front-to-rear are worth pricing into any purchase. Because center-pin play affects steering control, have your dealer verify pin and bushing wear before returning the machine to regular duty.
What do operators say about how the WA250-1 drives and performs day to day?
Feedback on this size and vintage of Komatsu loader skews positive on power and speed for its class - long-time users describe it as a strong, quick machine that keeps pace with or beats similarly sized competitors from the same era. The tradeoff mentioned repeatedly is ride quality: it rides firm over rough ground, and operators running long shifts on uneven yards note it can be tiring compared to a softer-riding competitor. That is a characteristic of the machine's era and suspension setup, not a sign of a worn or faulty component.
What should I check before buying a used WA250-1 (S/N 10001-UP)?
Start the engine cold and watch smoke color and starting behavior, then check for coolant or oil cross-contamination that would point to the known injector nozzle seal issue. Run the transmission through all four speeds forward and reverse, feeling for slipping or harsh engagement, and check fluid for a burnt smell or metal. Cycle the hydraulics loaded and unloaded to check for lift-arm or bucket drift, and inspect hoses and the pump area for leaks. Articulate the loader fully both directions with the engine off to feel for play in the center pins and bushings. Pull a sample or at least check the drain plug on the front and rear final drives for metal. Walk the tires for uneven wear, cuts, and mismatched sizing, and confirm every gauge, light, and wiper works given this era's known connector-corrosion issues. Because this generation has no onboard diagnostics to fall back on, a pre-purchase inspection by a dealer or independent tech who can pressure-test the hydraulics and check the transmission clutches is worth the cost before you commit.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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