Komatsuwheel loadersmall ( - wa120 / sk*)
Komatsu WA40-3(S/N 19001-UP)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu WA40-3 (S/N 19001-UP) is a compact wheel loader in the roughly 3-tonne operating class, built for yard, nursery, and light construction work where a tight turning radius and small footprint matter more than raw tonnage. It runs a Komatsu-badged S3D84E-family three-cylinder diesel, a mechanically-governed, indirect-injection engine with no ECM or electronic fault codes, rated in the high-20-kW range (roughly 27 kW / 36 hp) at its rated engine speed. Operating weight runs roughly 3,055-3,205 kg (about 6,735-7,065 lb) depending on bucket, counterweight, and tire spec. Drive goes through a torque-converter powershift transmission, not a hydrostatic drive. The 19001-UP block is filed as the direct parts-catalog continuation of the WA40-3 Overseas Version line that opened at serial 10001, itself the successor to the WA40-2 (S/N 3001-UP) and, before that, the WA40-1 (S/N 1001-UP). Standard configuration is a pin-on general-purpose bucket around 0.5 m³ on the Z-bar boom linkage with a bolt-on cutting edge; no factory quick coupler or third hydraulic spool is offered on this class.
Across the WA40-1/-2/-3 progression, Komatsu made incremental running changes typical of its Dash-series updates rather than a full redesign: the compact three-cylinder, Yanmar-derived diesel block carried through each generation with only minor rating and injection-system tweaks, while the loader linkage, torque-converter transmission, and simple pin-on attachment interface stayed largely unchanged. The WA40-3 Overseas Version itself spans two parts-book serial breaks, 10001-18999 and then 19001-UP, reflecting spec running changes rather than a new model designation. No parts-catalog record ties the 19001-UP block to a distinct successor SKU. Komatsu later reused the WA40 name on a heavier, later-generation compact loader, but that machine is not documented as a direct replacement for this parts family. In the used and parts market, that makes the WA40-3 a fairly closed, well-defined population: buyers get a small, simple, mechanically-governed loader with no emissions electronics to fail, and value depends more on a clean torque converter and undamaged loader linkage than on raw hour count.
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 WA40-3(S/N 19001-UP) specifications
Engine
| Engine model | Komatsu S3D84E-3B diesel, 3-cylinder, water-cooled, naturally aspirated, indirect injection |
| Gross (flywheel) power | 27.2 kW (36.5 PS) at 2,500 rpm |
| Maximum torque | 123 N·m (91 lb-ft) at 1,600 rpm |
| Displacement | approx. 1.5 L (91 cu in); 84 mm bore x 90 mm stroke |
| Emissions tier | Pre-emissions-regulation era; mechanically governed diesel with no published EPA/EU emissions certification |
Weights
| Operating weight, canopy version | 3,055 kg (6,735 lb), including 55 kg (110 lb) operator |
| Operating weight, cab version | 3,205 kg (7,065 lb), including 55 kg (110 lb) operator |
| Ground pressure | Not published for this model — verify with your dealer |
Dimensions
| Overall length | approx. 4.27 m (14.0 ft) |
| Overall width | approx. 1.67 m (5.5 ft) |
| Overall height | approx. 1.9-2.5 m (6.2-8.2 ft); figure varies by canopy vs cab configuration and measurement point across sources |
| Minimum turning radius | 3.82 m (12.5 ft) outside of chassis; 3.21 m (10.5 ft) at center of outside tire |
| Wheelbase / ground clearance | Not documented in available factory literature for this serial range — verify with your dealer |
Performance
| Bucket capacity | 0.5 m³ (0.65 cu yd) |
| Rated (normal) load | 7.8 kN (1,754 lbf) per factory performance rating |
| Maximum drawbar pull | 31.9 kN (7,171 lbf) |
| Travel speed | 15.0 km/h (9.3 mph), forward and reverse |
| Gradeability | Not published for this model |
Service capacities (summary)
| Fuel tank | 42.0 L (11.1 US gal) |
| Hydraulic system | 38.0 L total system capacity; 28.0 L on service refill (10.0 / 7.4 US gal) |
| Engine oil (pan, with filter change) | 5.2 L specified; 4.7 L on refill (1.4 / 1.2 US gal) |
| Cooling system | 5.8 L (1.5 US gal) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
WA40-3(S/N 19001-UP) fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | 5.2 L system fill (1.37 US gal); 4.7 L refill at an oil-and-filter change (1.24 US gal) | Komatsu engine oil, API CD/CE. Use SAE10W below 0°C, SAE30 above roughly 25°C, and SAE10W-30 or SAE15W-40 multigrade across the broader range. Komatsu Genuine EO10-CD, EO30-CD, EO10-30CD or EO15-40CD. Halve the change interval if running fuel with sulfur content above 0.5%. |
| Transfer case (drive) | 1.4 L system fill (0.37 US gal); 1.3 L refill (0.34 US gal) | Same engine oil grade as the crankcase: SAE10W, SAE30, SAE10W-30 or SAE15W-40 by ambient temperature, API CD/CE. |
| Hydraulic system (tank and circuit, HST included) | 38.0 L system fill (10.0 US gal); 28.0 L refill (7.4 US gal) | No separate hydraulic-oil spec is called out for this chassis class. The hydraulic tank runs the same engine oil grade as the crankcase (SAE10W/30/10W-30/15W-40 by ambient temperature, API CD/CE). |
| Front axle / final drive housing | 4.8 L, specified equals refill (1.27 US gal) | Dedicated axle oil, viscosity equivalent to SAE10W-30. Shell Donax TT or TD, Caltex RPM Tractor Hydraulic Fluid, Chevron Tractor Hydraulic Fluid, Texaco TDH Oil, or Mobil Mobiland Super Universal. Engine oil API CD SAE30 is an accepted substitute. |
| Rear axle / final drive housing | 4.5 L, specified equals refill (1.19 US gal) | Same axle oil as the front axle housing. |
| Fuel tank | 42.0 L (about 11.1 US gal). Single fill spec; no separate refill figure given. | Diesel fuel, ASTM D975 No. 2 grade for normal ambient temperatures; switch to No. 1 grade in cold weather. Fill up at the end of each shift to limit condensation, and drain sediment and water before starting or 10 minutes after refueling. |
| Cooling system | 5.8 L (1.53 US gal) | Water mixed with Komatsu Genuine antifreeze/coolant, ethylene-glycol base, permanent type. Factory fill is rated for 2 years or 4000 hours. Mix ratio scales with ambient temperature; do not run on plain water. |
| Grease points (pins and linkage) | Spec only, no fixed refill volume. Apply until fresh grease purges at the joint. | NLGI No. 2 lithium-base grease. Komatsu Genuine G2-LI or G2-LI-S. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Komatsu WA40-3(S/N 19001-UP) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 4,000 h |
|
Servicing the WA40-3(S/N 19001-UP) beyond the schedule
Predictive maintenance and fluid analysis
On the WA40-3 (19001-UP) there is no ECM to flag wear trends, so fluid sampling carries the load. Pull engine oil, torque-converter/transmission oil, and axle (differential and final drive) oil samples on a set interval and track metal content and viscosity drift on the mechanically-governed S3D84E-family diesel. Watch hydraulic oil cleanliness closely, since this loader has no auxiliary filtration beyond the return-line filter. Test coolant inhibitor and freeze-point condition annually rather than relying on a fixed change interval, given the small radiator and simple cooling circuit.
Corrective and common repairs
Most corrective work on this loader lands on the torque-converter powershift transmission and the Z-bar loader linkage. Delayed or rough shifting usually traces to low or contaminated transmission oil rather than electronics, since there is no shift-control module to fault-code. Linkage pins and bushings at the boom, bucket, and tilt lever wear fastest on dusty yard duty and need regular regreasing and periodic bushing replacement. Bolt-on cutting edges wear quickest on ground-engaging work; the pin-on bucket has no quick-coupler wear points to inspect.
Overhaul and rebuild points
At major overhaul, focus on the torque converter and transmission clutch packs, the front and rear axle final drives, and the loader linkage bushings, since these carry the duty cycle on a machine this size. The naturally-aspirated S3D84E-family diesel is a simple mechanical block: injection pump calibration, valve clearance, and cylinder head torque are the core rebuild checks, with no turbo or emissions aftertreatment to service. Hydraulic pump and cylinder reseal work follows if bypass exceeds spec during a fluid-condition check.
Seasonal and environment servicing
Cold-weather starts on the mechanically-governed S3D84E-family diesel benefit from a block heater or cold-start aid, since there is no ECM-managed cold-start strategy. Check coolant freeze protection and battery condition before winter, and let the torque converter warm up before working under load in low temperatures. In hot, dusty yard or aggregate settings, clean the air cleaner element more often than the standard interval and inspect loader linkage grease points for dust intrusion, since this compact loader has minimal cab and intake filtration.
WA40-3(S/N 19001-UP) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| YM129100-55650 | Element,Fuel Filter | Fuel system service | Check fitment → |
| 07000-02135 | O-Ring,Hydraulic Oil Filter | Hydraulic service | Check fitment → |
| 363-18-31470 | Element,Hydraulic | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
WA40-3(S/N 19001-UP) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| Charge lamp (battery/alternator symbol) | Charging circuit is not charging the battery | Loose or broken fan/alternator belt, faulty alternator, or a wiring/connector fault in the charging circuit | Stop and check belt tension and alternator wiring before continuing; do not keep running on battery power alone |
| Engine oil pressure lamp (oil-can symbol) | Engine lubrication pressure has dropped below the safe limit | Low engine oil level, clogged oil filter, failing oil pump, or worn bearings | Stop the engine immediately, check oil level and filter, and do not restart until the cause is found |
| Coolant temperature gauge in red zone / overheat warning | Engine coolant temperature is above normal operating range | Low coolant level, clogged radiator fins, failed thermostat, or a loose/broken fan belt | Reduce load, idle down, and shut off safely; check coolant level and radiator only after the engine cools, never remove a hot cap |
| Air cleaner restriction indicator | Intake air filter element is clogged, restricting airflow to the engine | Dust/debris buildup in the air cleaner element beyond the service interval | Inspect and clean or replace the air cleaner element per the maintenance schedule |
| Parking brake lamp | Parking brake is applied, or the parking brake circuit needs attention | Brake left engaged before attempting to drive, or a fault in the brake switch/wiring | Confirm the parking brake is released before moving the machine; if the lamp stays lit with the brake released, check the brake switch and wiring |
| Preheat (intake air heater) indicator lamp | Intake air heater is energized to aid cold starting | Normal cold-start function on this mechanical diesel, not a fault condition | Wait for the lamp to go out before cranking the engine in cold conditions |
| Torque converter/transmission oil temperature gauge - high reading | Torque converter or transmission oil is running hotter than normal | Low transmission oil level, sustained high-load operation (stall condition), or a clogged oil cooler | Reduce load and let the unit idle to cool, then check oil level and cooler for restriction |
| Fuel level low warning (gauge/lamp) | Fuel tank level is low | Machine due for refueling | Refuel promptly; on this mechanical indirect-injection engine, bleed air from the fuel system if the engine has run dry before restarting |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
WA40-3(S/N 19001-UP) attachments & work tools
General-purpose bucket
Standard work tool for this class is a general-purpose (GP) bucket of about 0.5 m³ capacity, with a cutting width in the 1.65-1.69 m range depending on source/configuration. This is the factory-fit tool for most units in this compact wheel-loader class.
Bolt-on cutting edge / specialty bucket edge
The GP bucket uses a bolt-on, replaceable cutting edge rather than cast teeth. A standard-length edge (about 1.69 m) and a longer duty edge (about 1.76 m) for agricultural/livestock-yard bucket work are both catalogued for this model, letting the same bucket shell serve general loading or manure/feed handling.
Pallet fork
A pin-mounted pallet-fork attachment fits the same loader-arm and bucket-link mount as the bucket for light material handling. Fork capacity in this weight class is limited by the machine's own light tipping load (roughly 3.0-3.5 t operating class), so forks here suit pallet and light-load work rather than heavy forklift duty.
Attachment mounting / coupler system
Tools pin onto the boom and bucket link in a conventional bolt-and-pin mount; changing a bucket or fork means pulling and refitting pivot pins, not flipping a lever. This size class does not carry Komatsu's factory lever-actuated quick coupler, which Komatsu reserves for its larger tool-carrier wheel loaders (roughly the WA200-8 class and up).
Boom / linkage geometry
The loader arm uses a Z-bar-type linkage rather than a parallel-lift arrangement, giving strong bucket breakout and rollback for digging and loading. This geometry favors bucket work over fork-heavy, load-level-sensitive tool use, unlike the parallel-lift linkage on Komatsu's larger tool-carrier loaders.
Hydraulic circuit for powered work tools
Factory hydraulics on this size class cover only the lift and tilt (bucket) circuits; there is no dedicated third/auxiliary spool for powered attachments from the factory. Hydraulically driven tools such as grapples, brooms, or sweepers generally need a dealer-fit or aftermarket auxiliary valve kit tapped into the main control valve rather than a built-in circuit.
Engine / available hydraulic power
This serial range is powered by the Komatsu-badged S3D84-2 diesel, a compact 3-cylinder unit rated at roughly 27 kW (about 36-37 PS gross) per dealer spec sheets for the WA40-3. That modest output caps how much continuous hydraulic flow is realistically available for add-on powered tools, reinforcing why this class relies on simple bucket/fork tooling rather than heavy hydraulic attachments.
Cab and guarding configuration
No documentation ties a specific factory options list (open ROPS/FOPS canopy vs enclosed heated cab, rear or front screen guards) to this exact 19001-up serial break. Compact loaders in this family are generally ordered with either canopy or cab per application; confirm the exact factory option codes for this serial range with a Komatsu dealer.
All WA40-3(S/N 19001-UP) assemblies by section
Every catalogued assembly group for the Komatsu WA40-3(S/N 19001-UP). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Accessory And Tool
Komatsu : Wa40-3(S/N 19001-Up) : Accessory And Tool : Spare Parts
| 07***65 | O-Ring,Injection Pump Case | 1 |
| 36***70 | Element,Hydraulic | 1 |
| YM***50 | Cartridge,Engine | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Accessory And Tool : Tool
| 07***50 | Pump, (Bellows Type) | 1 |
| 07***03 | Cartridge - Grease | 1 |
| 07***17 | Nozzle | 1 |
Cooling System
Komatsu : Wa40-3(S/N 19001-Up) : Cooling System : Radiator And Piping
| 01***12 | Bolt,(With Speedometer) | 2 |
| 01***16 | Bolt, Mount Solenoid Valve | 8 |
| 01***16 | Bolt - Starting Motor Ground Cable | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Cooling System : Radiator And Piping (Livestock Raising Spec.)
| 01***12 | Bolt,(With Speedometer) | 2 |
| 01***16 | Bolt, Mount Solenoid Valve | 8 |
| 01***16 | Bolt - Starting Motor Ground Cable | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Cooling System : Radiator Piping
| 07***35 | Clamp | 4 |
| 36***10 | Hose,Inlet | 1 |
| 36***20 | Hose,Outlet | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Cooling System : Reserve Tank And Mount Parts
| 01***12 | Bolt,(See Fig. K0210-16a0) | 2 |
| 07***15 | Clip | 2 |
| 36***10 | Hose | 1 |
Electrical System
Komatsu : Wa40-3(S/N 19001-Up) : Electrical System : Battery
| 08***00 | Terminal? (+),(10l) (Not Shown) | 1 |
| 08***01 | Terminal? (-),(20l) (Not Shown) | 1 |
| 08***08 | Battery? Dry(75d31l) | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Electrical System : Battery Mount Parts
| 01***16 | Bolt - Seat And Tether Belt Mounting | 4 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 4 |
| 01***07 | Nut,Lock | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Electrical System : Electrical System (Main Line) (1/2)
| 01***20 | Screw | 2 |
| 01***16 | Bolt, Mounting Transmission Control Switch | 8 |
| 01***16 | Bolt - Starting Motor Ground Cable | 5 |
Komatsu : Wa40-3(S/N 19001-Up) : Electrical System : Electrical System (Main Line) (2/2)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***70 | Bolt - Bracket And Oil Inlet Tubemounting | 1 |
| 01***12 | Bolt,(See Fig. K0210-16a0) | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Electrical System : Instrument Panel (Burglar Prevent Type)
| 01***08 | Screw | 2 |
| 01***14 | Screw,(With Joy Stick Steering) | 2 |
| 01***16 | Screw,(For Joy Stick Steering) | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Electrical System : Instrument Panel (Master Key Type)
| 01***08 | Screw | 2 |
| 01***14 | Screw,(With Joy Stick Steering) | 2 |
| 01***16 | Screw,(For Joy Stick Steering) | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Electrical System : Vehicle Lamp And Hone
| 01***16 | Bolt - Seat And Tether Belt Mounting | 6 |
| 01***25 | Screw - Antenna Mounting | 4 |
| 01***35 | Screw, Mount Lens | 8 |
Engine Related Parts
Komatsu : Wa40-3(S/N 19001-Up) : Engine Related Parts : Air Cleaner Connection
| 01***16 | Bolt - Starting Motor Ground Cable | 2 |
| 07***89 | Clamp,(D31s) | 1 |
| 07***09 | Clamp,(See Fig. K0210-16a0) | 5 |
Komatsu : Wa40-3(S/N 19001-Up) : Engine Related Parts : Damper
| 01***40 | Bolt,Reamer | 6 |
| 04***12 | Pin,Spring (See Fig.0201) | 6 |
| 20***10 | Rubber | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Engine Related Parts : Engine Mounting Parts
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 1 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 4 |
Fuel Tank And Related Parts
Komatsu : Wa40-3(S/N 19001-Up) : Fuel Tank And Related Parts : Fuel Line
| 01***16 | Bolt - Starting Motor Ground Cable | 3 |
| 04***10 | Clip,See Fig. K4010-05a0 | 2 |
| 04***10 | Clip | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Fuel Tank And Related Parts : Fuel Tank And Piping
| 01***30 | Bolt,(Not Used When Towing Winch) | 3 |
| 01***12 | Screw,(Additional Sun Visor) | 5 |
| 01***13 | Washer,Spring(For Wiper Switch Earth) | 5 |
Guard
Komatsu : Wa40-3(S/N 19001-Up) : Guard : Additional Counter Weight (With Fork)
| 01***55 | Capscrew | 2 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 2 |
| 01***60 | Washer,(Without Rops Guard? Canopy) | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Guard : Counter Weight
| 01***90 | Bolt | 2 |
| 01***10 | Bolt - Relay And Flasher Mounting | 2 |
| 01***60 | Washer,(Without Rops Guard? Canopy) | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Guard : Counter Weight (For Back Hoe)
| 01***55 | Bolt,(Without Rops) | 8 |
| 01***75 | Capscrew | 2 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Guard : Floor Frame Cover
| 01***20 | Bolt,(Forwarded Individually Parts) | 8 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
| 36***21 | Sheet,R.H | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Guard : Front Fender
| 01***25 | Bolt - Relay Mounting | 4 |
| 01***06 | Nut | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Guard : Front Guard
| 01***14 | Screw | 2 |
| 01***12 | Screw,(Wa320-1m?1p) | 4 |
| 01***16 | Screw,(For Joy Stick Steering) | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Guard : Front Guard (For Road Sweeper)
| 01***12 | Screw,(Wa320-1m?1p) | 6 |
| 01***16 | Screw,(For Joy Stick Steering) | 4 |
| 01***35 | Bolt, Mount Bracket To Floor | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Guard : Front Guard (For Road Sweeper) (With Inching Lever)
| 01***12 | Screw,(Wa320-1m?1p) | 6 |
| 01***16 | Screw,(For Joy Stick Steering) | 4 |
| 01***35 | Bolt, Mount Bracket To Floor | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Guard : Hood
| 01***20 | Screw | 4 |
| 01***20 | Screw | 4 |
| 01***16 | Bolt, Mount Solenoid Valve | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Guard : Hood (Mount)
| 01***12 | Bolt,(See Fig. K0210-16a0) | 4 |
| 01***16 | Bolt, Mount Solenoid Valve | 2 |
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Guard : Hood (Mount) (Seat Belt)
| 01***12 | Bolt,(See Fig. K0210-16a0) | 4 |
| 01***16 | Bolt, Mount Solenoid Valve | 2 |
| 01***40 | Bolt,(Shim 3-Piece) | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Guard : Hood (Seat Belt)
| 01***20 | Screw | 4 |
| 01***20 | Screw | 4 |
| 01***20 | Bolt,(Forwarded Individually Parts) | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Guard : Hood (Seat Belt) (With Car Heater)
| 01***20 | Screw | 4 |
| 01***10 | Screw (Op) | 3 |
| 01***20 | Screw | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Guard : Hood (With Additional Heater)
| 01***20 | Screw | 4 |
| 01***10 | Screw (Op) | 3 |
| 01***20 | Screw | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Guard : Hood (With Car Heater)
| 01***20 | Screw | 4 |
| 01***10 | Screw (Op) | 3 |
| 01***20 | Screw | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Guard : Mirror (For Cab)
| 01***35 | Bolt, Cover | 4 |
| 01***06 | Nut | 4 |
| 01***09 | Nut,(With Body Positioner) | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Guard : Mirror (For Canopy)
| 01***40 | Screw | 4 |
| 01***09 | Nut,(With Body Positioner) | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Guard : Mirror (For Canopy) (For Back Hoe)
| 01***40 | Screw | 4 |
| 01***09 | Nut,(With Body Positioner) | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Guard : Rear Grille
| 01***25 | Bolt - Relay Mounting | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 36***20 | Grille | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Guard : Under Guerd
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 3 |
| 01***32 | Washer,(With Auto Emergency Steering) | 3 |
| 36***10 | Sheet | 1 |
Hydraulic System
Komatsu : Wa40-3(S/N 19001-Up) : Hydraulic System : 2-Spool Control Valve
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 3 |
| (3***1) | Valve Ass'Y | 1 |
| (3***0) | Valve Ass'Y,Power Take-Off | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Hydraulic System : Hydraulic Piping (Delivery Line)
| 01***16 | Bolt, Mount Solenoid Valve | 2 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Hydraulic System : Hydraulic Piping (Front Attachment Line)
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***07 | Nut,(With Body Positioner) | 12 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Hydraulic System : Hydraulic Piping (Front Attachment Line) (Livestock Raising Spec.)
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***07 | Nut,(With Body Positioner) | 12 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Hydraulic System : Hydraulic Piping (Lift And Dump Cylinder Line)
| 01***40 | Bolt,(Shim 3-Piece) | 2 |
| 01***50 | Bolt,(See Fig.A4010-C3w6) | 1 |
| 07***18 | O-Ring, Divider Valve Mounting | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Hydraulic System : Hydraulic Piping (Return Line)
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 8 |
| 07***18 | O-Ring, Divider Valve Mounting | 1 |
| 07***34 | O-Ring,(For Front Attachment) | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Hydraulic System : Hydraulic Piping (Steering Line)
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
| 01***50 | Bolt,(See Fig.A4010-C3w6) | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Hydraulic System : Hydraulic Tank
| 01***30 | Bolt,(Not Used When Towing Winch) | 3 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 3 |
| 07***34 | O-Ring,(F2320-62a1 -3 ) | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Hydraulic System : Steering Valve
| (3***0) | Steering Valve Ass'Y,(See Fig.Y1689-01a0) | 1 |
Main/Revolving Frame And Related Parts
Komatsu : Wa40-3(S/N 19001-Up) : Main/Revolving Frame And Related Parts : Bar Rock And Cover
| 01***20 | Bolt,(Forwarded Individually Parts) | 4 |
| 36***60 | Pin,Snap | 2 |
| 36***10 | Bar | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Main/Revolving Frame And Related Parts : Bar Rock And Cover (For Attachment)
| 01***20 | Bolt,(Forwarded Individually Parts) | 4 |
| 36***60 | Pin,Snap | 2 |
| 36***10 | Bar | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Main/Revolving Frame And Related Parts : Front Frame
| 01***80 | Bolt,(B) | 4 |
| 01***13 | Nut,Plate (Welded) | 4 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 8 |
Komatsu : Wa40-3(S/N 19001-Up) : Main/Revolving Frame And Related Parts : Hinge Pin
| 01***35 | Bolt,(F4320-52a0 -5 ) | 8 |
| 01***55 | Bolt,(Not Used For Chip Dozer) | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
Komatsu : Wa40-3(S/N 19001-Up) : Main/Revolving Frame And Related Parts : Rear Axle Support
| 01***80 | Bolt,(B) | 4 |
| 01***50 | Bolt,For Weight Adjusting Bolt | 8 |
| 01***20 | Bolt,(Forwarded Individually Parts) | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Main/Revolving Frame And Related Parts : Rear Frame
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***70 | Screw | 2 |
| 07***18 | Plug,(With Extinguisher) (D31p) | 6 |
Komatsu : Wa40-3(S/N 19001-Up) : Main/Revolving Frame And Related Parts : Sttering Cylinder
| 07***00 | Fitting, Grease - Upper Hinge Pin | 2 |
| (3***1) | Cylinder Group,Steering | 1 |
Marks And Plates
Komatsu : Wa40-3(S/N 19001-Up) : Marks And Plates : Marks And Plates (With Cab) (English)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 09***41 | Plate? Safety,Articulate Lock | 1 |
| 09***41 | Plate? Safety,Keep Out | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Marks And Plates : Marks And Plates (With Canopy) (English)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 09***41 | Plate? Safety,Articulate Lock | 1 |
| 09***41 | Plate? Safety,Keep Out | 2 |
Operator'S Compartment And Control System
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Accelerator Pedal And Linkage
| 01***25 | Screw | 2 |
| 01***05 | Nut,(For Air Conditioner Less), Nut | 2 |
| 01***08 | Washer,(For 1 Attachment And Pat) | 3 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Accelerator Pedal And Linkage (Lever) (For Heater)
| 01***05 | Nut,(For Air Conditioner Less), Nut | 1 |
| 01***23 | Washer,(With Car Heater) | 1 |
| 04***53 | Pin,Cotter (For Radio Control) | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Additional Heater
| 01***20 | Bolt,(Forwarded Individually Parts) | 2 |
| 01***16 | Bolt - Starting Motor Ground Cable | 6 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Blower
| 01***12 | Bolt - Front Cover Mounting | 2 |
| 01***65 | Bolt,(Used With Pin Puller) | 2 |
| 01***10 | Screw (Op) | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Brake Control (Brake Link) (1/2)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***65 | Bolt - Return Line And Suction Linehose Clamps | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Brake Control (Brake Link) (1/2) (For Hand Throttle)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***65 | Bolt - Return Line And Suction Linehose Clamps | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Brake Control (Brake Link) (2/2)
| 01***16 | Bolt - Box Mounting | 3 |
| 01***22 | Bolt | 1 |
| 01***05 | Nut,(For Air Conditioner Less), Nut | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Brake Control (Brake Link) (2/2) (For Hand Throttle)
| 01***16 | Bolt - Box Mounting | 3 |
| 01***22 | Bolt | 1 |
| 01***05 | Nut,(For Air Conditioner Less), Nut | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Brake Control (Parking Brake Release)
| 01***25 | Bolt - Relay Mounting | 2 |
| 01***23 | Washer,(With Car Heater) | 1 |
| 04***20 | Pin, Spring Retainer | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Brake Control (Pedal And Lever)
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 2 |
| 01***16 | Bolt - Starting Motor Ground Cable | 2 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 6 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Canopy
| 01***55 | Bolt - Mount Cage To Transmission Case | 6 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 16 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Canopy (For Back Hoe)
| 01***55 | Bolt - Mount Cage To Transmission Case | 6 |
| 01***16 | Bolt - Starting Motor Ground Cable | 6 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 8 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Canopy (With Front Window)
| 01***55 | Bolt - Mount Cage To Transmission Case | 6 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 8 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Canopy (With Front Window) (Front Window) (1/2)
| 01***40 | Bolt - M6 X 40lg | 1 |
| 01***16 | Bolt - Seat And Tether Belt Mounting | 2 |
| 01***08 | Screw - Holder | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Canopy (With Front Window) (Front Window) (2/2)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***20 | Screw - Turn Signal And Parkinglight Mounting | 2 |
| 01***10 | Bolt - Relay And Flasher Mounting | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Car Heater And Defroster (1/3) (Heater)
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 4 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Car Heater And Defroster (2/3) (Air Hose And Wiring)
| 01***20 | Screw - Turn Signal And Parkinglight Mounting | 2 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 1 |
| 01***40 | Bolt,(Shim 3-Piece) | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Car Heater And Defroster (2/3) (Air Hose And Wiring) (For Additional Blower)
| 01***20 | Screw - Turn Signal And Parkinglight Mounting | 2 |
| 01***40 | Bolt,(Shim 3-Piece) | 1 |
| 01***04 | Nut,(For Air Conditioner Less) | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Car Heater And Defroster (2/3) (Air Hose And Wiring) (For Additional Heater)
| 01***20 | Screw - Turn Signal And Parkinglight Mounting | 2 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 1 |
| 01***55 | Bolt, Mount Dryer To Bracket And Frame | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Car Heater And Defroster (2/3) (Air Hose And Wiring) (For Snow Removal)
| 01***70 | Bolt - Bracket And Oil Inlet Tubemounting | 1 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Car Heater And Defroster (3/3) (Water Line)
| 01***20 | Bolt,(Forwarded Individually Parts) | 2 |
| 09***00 | Valve | 1 |
| 09***06 | Hose | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Car Heater And Defroster (3/3) (Water Line) (For Additional Heater)
| 01***20 | Bolt,(Forwarded Individually Parts) | 2 |
| 07***23 | Clamp | 4 |
| 07***59 | Clamp,See Fig. K4010-05a0 | 10 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Floor Frame
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 4 |
| 01***40 | Bolt,(Shim 3-Piece) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Floor Frame (For Additional Heater And Defroster)
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 4 |
| 01***40 | Bolt,(Shim 3-Piece) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Floor Frame (For Back Hoe)
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 4 |
| 01***40 | Bolt,(Shim 3-Piece) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Floor Frame (For Back Hoe? Heater And Defroster)
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 4 |
| 01***40 | Bolt,(Shim 3-Piece) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Floor Frame (For Heater And Defroster)
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 4 |
| 01***40 | Bolt,(Shim 3-Piece) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Floor Frame (Sheet)
| 36***20 | Sheet | 1 |
| 36***10 | Sheet | 1 |
| 36***20 | Sheet | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Floor Frame (Snow Removal Spec.)
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 4 |
| 01***40 | Bolt,(Shim 3-Piece) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Floor Mat
| 36***80 | Mat,Floor | 1 |
| 41***70 | Plate | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Floor Mat (For Heater)
| 36***20 | Mat,Floor(For Car Heater And Def.) | 1 |
| 36***10 | Mat,(For Blower) | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Floor Mat (For Tachograph)
| 36***20 | Mat,Floor (With Tachograph) | 1 |
| 36***30 | Mat,Floor (With Tachograph) | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Forward And Reverse Control Lever
| 01***16 | Bolt,(For Slag Handling) | 2 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 2 |
| 36***60 | Shift Lever Ass'Y | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Hst Inching Control Line
| 01***30 | Screw | 1 |
| 01***45 | Bolt | 2 |
| 01***22 | Bolt | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Operator'S Cab (1/8) (Front Window)
| 01***40 | Bolt - M6 X 40lg | 1 |
| 01***08 | Screw - Holder | 1 |
| 01***16 | Bolt, Mounting Transmission Control Switch | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Operator'S Cab (2/8) (Side Window)
| 01***16 | Screw | 2 |
| 01***12 | Screw | 4 |
| 01***16 | Screw | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Operator'S Cab (3/8) (Roof? Room Mirror And Room Lamp)
| 01***12 | Screw,(Additional Sun Visor) | 8 |
| 01***20 | Screw | 4 |
| 01***20 | Bolt,(Forwarded Individually Parts) | 8 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Operator'S Cab (4/8) (Rear Door)
| 01***20 | Screw | 4 |
| 01***10 | Screw,(For Lighter) | 8 |
| 01***12 | Screw,(Additional Sun Visor) | 5 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Operator'S Cab (5/8) (Rear Door Mount)
| 01***25 | Screw | 8 |
| 01***14 | Bolt - Plate Mounting | 4 |
| 01***16 | Bolt, Mounting Transmission Control Switch | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Operator'S Cab (6/8) (L.H. And R.H. Door) (1/2)
| 01***20 | Screw | 8 |
| 01***12 | Bolt,(See Fig. K0210-16a0) | 2 |
| 01***05 | Nut,(For Air Conditioner Less), Nut | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Operator'S Cab (7/8) (L.H. And R.H. Door) (2/2) (Handle And Lock)
| 01***10 | Screw,R.H. Door | 1 |
| 01***16 | Screw,(With Ashtray) | 2 |
| 01***16 | Screw | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Operator'S Cab (8/8) (Cab And Wrok Lamp)
| 01***12 | Screw | 2 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
| 08***08 | Grommet,(Without Beacon Lamp) | 3 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Operator'S Cab (Electrical)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***10 | Bolt - Relay And Flasher Mounting | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Operator'S Cab Mount
| 01***55 | Bolt,(See Service News) | 4 |
| 01***60 | Bolt,(F4320-52a0 -5- ) | 4 |
| 01***55 | Bolt - Mount Cage To Transmission Case | 6 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Operator'S Seat
| 01***06 | Nut | 4 |
| 36***01 | Seat Ass'Y | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Operator'S Seat (For Back Hoe)
| 01***40 | Bolt | 2 |
| 01***30 | Bolt,(Water Separator Spec.) | 4 |
| 01***15 | Nut | 8 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Rops Canopy
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 8 |
| 01***45 | Bolt, Mounting Cranking Motor | 4 |
| 01***60 | Bolt,For Weight Adjusting Bolt | 14 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Seat Belt
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 4 |
| 01***06 | Nut | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Steering Wheel And Column
| 01***45 | Bolt, Mounting Cranking Motor | 1 |
| 01***15 | Bolt | 2 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Window Washer
| 01***16 | Bolt, Mounting Transmission Control Switch | 2 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 1 |
| 36***60 | Bracket | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Work Equipment Control (Hand Throttle Cable)
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 2 |
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 2 |
| 01***08 | Washer,(For Fixed Type Ripper) | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Work Equipment Control (Hand Throttle Link)
| 01***08 | Nut, Regular Hexagon (M10-1.50) | 2 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 1 |
| 07***18 | O-Ring, Divider Valve Mounting | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Work Equipment Control (Lever)
| 01***12 | Bolt - Front Cover Mounting | 2 |
| 01***20 | Bolt,(Without Air Con. Or Heater) | 1 |
| 01***25 | Screw | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Work Equipment Control (Lever) (For Front Attachment)
| 01***12 | Bolt - Front Cover Mounting | 2 |
| 01***20 | Bolt,(Without Air Con. Or Heater) | 1 |
| 01***25 | Screw | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Work Equipment Control (Lever) (For Hand Throttle)
| 01***12 | Bolt - Front Cover Mounting | 2 |
| 01***20 | Bolt,(Without Air Con. Or Heater) | 1 |
| 01***25 | Screw | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Work Equipment Control (Link)
| 01***30 | Bolt - M8 X 30lg | 2 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 4 |
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Operator'S Compartment And Control System : Work Equipment Control (Link) (For Front Attachment)
| 01***30 | Bolt - M8 X 30lg | 2 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 3 |
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 1 |
S3d84-5x-Ab Engine S/N 00461-Up
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Air Cleaner (Single Element)
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Air Intake Manifold And Connection
| YM***02 | Bolt Plated | 4 |
| YM***02 | Screw | 4 |
| YM***00 | Heater,Intake Air | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Alternator (40a) (Inner Parts)
| YM***00 | Bearing,Ball | 1 |
| YM***80 | Spring | 2 |
| YM***50 | Nut | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Alternator And Mounting (40a)
| YM***52 | Screw | 1 |
| YM***30 | Plate,Adjust | 1 |
| YM***02 | Nut | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Camshaft And Tappet
| YM***80 | Camshaft Ass'Y | 1 |
| YM***01 | Gear Ass'Y,Camshaft | 1 |
| YM***50 | Bearing, Thrust | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Crankshaft
| YM***80 | Parallel Pin | 1 |
| YM***50 | Pulley,Crank | 1 |
| YM***01 | Gear,Crank | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Cylinder Block
| YM***30 | Main Metal Ass'Y (Std) | 4 |
| YM***50 | Plug | 1 |
| YM***20 | Screw | 8 |
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Cylinder Block Accsessory
| YM***00 | O-Ring (Kit) | 1 |
| YM***50 | Guide,Oil Gauge | 1 |
| YM***50 | Oil Pressure Transmitter | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Cylinder Head
| YM***30 | Valve,Exhaust | 3 |
| YM***31 | Gasket,Head (Kit) | 1 |
| YM***80 | Retainer, Spring | 6 |
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Cylinder Head Cover
| YM***51 | Cap, Lub. Oil Supply | 1 |
| YM***20 | Cover | 1 |
| YM***00 | Screw | 8 |
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Drive Gear
| YM***02 | Screw | 3 |
| YM***00 | Washer,Spring | 1 |
| YM***01 | Gear,Injection | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Electrical Parts (Forwerded Individually Parts)
| YM***10 | Relay,Stop Solenoid | 1 |
| YM***00 | Relay,Safety | 1 |
| YM***20 | Time Switch | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Exhaust Manifold
| YM***30 | Bolt | 6 |
| YM***00 | Manifold,Exhaust | 1 |
| YM***10 | Gasket,Exhaust Manifold | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Flywheel And Flywheel Housing
| YM***00 | Gear,Ring | 1 |
| YM***70 | Screw | 6 |
| YM***80 | Parallel Pin | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Front Cover
| YM***51 | Cap, Lub. Oil Supply | 1 |
| YM***40 | O-Ring (Kit) | 4 |
| YM***00 | Clip,Breather Hose | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Front Hanger
| YM***00 | Suspension Plate | 1 |
| YM***42 | Screw | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Fuel Filter And Piping
| YM***10 | Protector | 1 |
| YM***00 | Fuel Feed Pump, Assembly | 1 |
| YM***02 | Screw | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Fuel Injection Pump And Piping
| YM***20 | Retainer, Pipe | 1 |
| YM***60 | O-Ring,Fuel Injection Pump | 1 |
| YM***02 | Bolt Plated | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Fuel Nozzle And Spill Hose
| YM***20 | Spring | 1 |
| YM***80 | Clamp | 1 |
| YM***10 | Pipe | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Gasket Kit
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Lubricating Oil Pump
| YM***20 | Spring | 1 |
| YM***41 | Gasket (Kit) | 1 |
| YM***30 | Valve,Relief | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Muffler And Mounting
| YM***02 | Screw | 4 |
| YM***20 | Stud | 4 |
| YM***11 | Cover | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Oil Filter And Oil Cooler
| YM***30 | Tube | 1 |
| YM***02 | Bolt Plated | 3 |
| YM***20 | Plug,Drain(Without Oil Cooler Type) | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Oil Pan
| YM***70 | Oil Pan Ass'Y | 1 |
| YM***40 | Plug | 1 |
| YM***52 | Screw | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Piston And Connecting Rod
| YM***00 | Screw | 2 |
| YM***00 | Crank Pin Metal A. (Std) | 1 |
| YM***80 | Piston Ass'Y | 3 |
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Rear Hanger
| YM***00 | Suspension Plate | 1 |
| YM***42 | Screw | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Rocker Arm
| YM***41 | Rocker Arm Shaft A | 1 |
| YM***50 | Rocker Arm Ass'Y | 6 |
| YM***70 | Support | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Starting Motor (Inner Parts)
| YM***50 | Pinion Ass'Y,Pinion | 1 |
| YM***20 | Housing,Center | 1 |
| YM***90 | Spring,Brush | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Starting Motor And Mounting
| YM***52 | Bolt Plated | 2 |
| YM***20 | Cover | 1 |
| YM***60 | Cable,Engine Side | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Tool
| YM***20 | Flex Horn (Option.) | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Turbocharger And Oil Piping
| YM***01 | Pipe,Outlet | 1 |
| YM***60 | O-Ring (Kit) | 1 |
| YM***50 | Pipe,Oil | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Water Pump And Cooling Fan
| YM***40 | Plug | 2 |
| YM***22 | Screw | 2 |
| YM***01 | Thermostat | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : S3d84-5x-Ab Engine S/N 00461-Up : Water Separator
| YM***00 | Water Separator A | 1 |
| YM***60 | O-Ring (Kit) | 1 |
| YM***50 | O-Ring (Kit) | 1 |
Service Kit And Component Parts
Komatsu : Wa40-3(S/N 19001-Up) : Service Kit And Component Parts : 2-Spool Control Valve (1/2)
| 36***70 | Plate | 1 |
| 36***11 | Valve Ass'Y | 1 |
| 36***20 | Spool Section Ass'Y | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Service Kit And Component Parts : 2-Spool Control Valve (1/2) (With Pressure Pick-Up Line)
| 36***20 | Spool Section Ass'Y | 1 |
| 36***50 | Valve Ass'Y | 1 |
| 42***60 | Inlet Section Ass'Y | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Service Kit And Component Parts : 2-Spool Control Valve (2/2)
| 36***70 | Plate | 1 |
| 36***50 | Spool Section Ass'Y | 1 |
| 36***30 | Stud,Tie | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Service Kit And Component Parts : 2-Spool Control Valve (2/2) (With Pressure Pick-Up Line)
| 36***50 | Spool Section Ass'Y | 1 |
| 36***30 | Stud,Tie | 2 |
| 36***40 | Stud,Tie | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Service Kit And Component Parts : 3-Spool C0ntrol Valve (1/2)
| 36***70 | Plate | 2 |
| 36***20 | Spool Section Ass'Y | 1 |
| 36***20 | Spool Section Ass'Y | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Service Kit And Component Parts : 3-Spool C0ntrol Valve (1/2) (With Pressure Pick-Up Line)
| 36***20 | Spool Section Ass'Y | 1 |
| 36***20 | Spool Section Ass'Y | 1 |
| 36***60 | Valve Ass'Y | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Service Kit And Component Parts : 3-Spool C0ntrol Valve (2/2) (With Pressure Pick-Up Line)
| 36***50 | Spool Section Ass'Y | 1 |
| 36***40 | Rod,Tie | 2 |
| 36***50 | Rod,Tie | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Service Kit And Component Parts : 3-Spool Control Valve (2/2)
| 36***70 | Plate | 1 |
| 36***50 | Spool Section Ass'Y | 1 |
| 36***40 | Rod,Tie | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Service Kit And Component Parts : Dump Cylinder (Inner Parts)
| 01***20 | Bolt,(With Auto Emergency Steering) | 1 |
| 01***22 | Nut,(North America Spec.) | 1 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Service Kit And Component Parts : Lift Cylinder (Inner Parts)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
| 01***24 | Nut,Bearing | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Service Kit And Component Parts : Main Pump (Gear Pump Inner Parts)
| 02***53 | O-Ring | 1 |
| UC***21 | Gear | 1 |
| UC***-0 | Pump Ass'Y,Gear | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Service Kit And Component Parts : Main Pump (Inner Parts)
| 01***25 | Screw | 2 |
| 36***02 | Pump Ass'Y,(A4vg28da-931-0) | 1 |
| UC***96 | Orifice | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Service Kit And Component Parts : Main Pump (Piston Pump Inner Parts)
| 01***12 | Bolt | 11 |
| 02***09 | O-Ring | 2 |
| 41***80 | O-Ring | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Service Kit And Component Parts : Main Pump (Piston Pump Inner Parts) (Control And Cut-Off Valve)
| 02***15 | O-Ring | 2 |
| UC***59 | Bolt | 4 |
| UC***82 | Orifice | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Service Kit And Component Parts : Main Pump (Piston Pump Inner Parts) (Cover And Relief Valve)
| 01***60 | Bolt | 4 |
| 02***09 | O-Ring | 2 |
| 02***88 | O-Ring | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Service Kit And Component Parts : Main Pump (Piston Pump Inner Parts) (Leaning Cylinder)
| 01***20 | Bolt (Itl) | 8 |
| 02***09 | O-Ring | 1 |
| 02***51 | O-Ring (Kit) | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Service Kit And Component Parts : Main Pump (Piston Pump Inner Parts) (Rotary Group)
| 04***12 | Ring, Snap (4) | 1 |
| 04***25 | Ring,(W/Emergency Steering) (1m?1d) | 1 |
| UC***98 | Plate,Control | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Service Kit And Component Parts : Priority Valve
| 36***00 | Valve Ass'Y,Priority | 1 |
| 42***10 | Service Kit,Priority Valve | 1 |
| 42***70 | Ball | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Service Kit And Component Parts : Steering Cylinder (Inner Parts)
| 01***09 | Nut,(With Body Positioner) | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
| 07***60 | O-Ring,(For Pc750?800?1800) (A2610) | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Service Kit And Component Parts : Steering Valve
| 36***00 | Steering Valve Ass'Y | 1 |
| 36***20 | Control Ass'Y | 1 |
| 36***30 | Spring | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Service Kit And Component Parts : Travel Motor (Inner Parts)
| 04***30 | Ring, Snap, Snap-Ring | 1 |
| 07***90 | O-Ring,(Dk029369-0020) (K2) | 1 |
| 36***01 | Motor Ass'Y,(A6v59da-974-1) | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Service Kit And Component Parts : Travel Motor (Inner Parts) (Control Group)
| 01***35 | Bolt,Snap | 8 |
| 01***45 | Bolt | 4 |
| 07***09 | O-Ring,(For Dual Tilt Dozer) | 2 |
Suspension And Wheel Related Parts
Komatsu : Wa40-3(S/N 19001-Up) : Suspension And Wheel Related Parts : Rim And Tire (For 15.5/60-18-8pr Tubeless Tire)
| 09***20 | Cap, Tire Valve | 4 |
| 36***50 | Valve Ass'Y,(Service Only) Z0600 | 4 |
| 36***10 | Wheel | 4 |
Torque Converter And Transmission
Komatsu : Wa40-3(S/N 19001-Up) : Torque Converter And Transmission : Front Axle (Differential)
| 01***70 | Bolt, Spacer | 1 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 7 |
| 01***20 | Screw | 14 |
Komatsu : Wa40-3(S/N 19001-Up) : Torque Converter And Transmission : Front Axle (Final Drive? L.H.)
| 01***65 | Bolt | 12 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 12 |
| 04***12 | Pin, Spring | 3 |
Komatsu : Wa40-3(S/N 19001-Up) : Torque Converter And Transmission : Front Axle (Final Drive? R.H.)
| 01***65 | Bolt | 12 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 12 |
| 04***12 | Pin, Spring | 3 |
Komatsu : Wa40-3(S/N 19001-Up) : Torque Converter And Transmission : Front Axle And Wheel Munting Parts
| 01***40 | Bolt | 12 |
| 01***60 | Flat Washer - M20 (Hardened) | 12 |
| (3***0) | Front Axle Ass'Y | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Torque Converter And Transmission : Front Drive Shaft
| 36***00 | Drive Shaft Ass'Y,Front | 1 |
| 36***50 | Shaft | 1 |
| 41***20 | Spider Ass'Y | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Torque Converter And Transmission : Hst Piping
| 01***40 | Bolt | 2 |
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Torque Converter And Transmission : Rear Axle (Differential)
| 01***70 | Bolt, Spacer | 1 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 7 |
| 01***20 | Screw | 14 |
Komatsu : Wa40-3(S/N 19001-Up) : Torque Converter And Transmission : Rear Axle (Final Drive R.H.)
| 01***65 | Bolt | 12 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 12 |
| 04***12 | Pin, Spring | 3 |
Komatsu : Wa40-3(S/N 19001-Up) : Torque Converter And Transmission : Rear Axle (Final Drive? L.H.)
| 01***65 | Bolt | 12 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 12 |
| 04***12 | Pin, Spring | 3 |
Komatsu : Wa40-3(S/N 19001-Up) : Torque Converter And Transmission : Rear Axle And Wheel Munting Parts
| 01***40 | Bolt | 12 |
| 01***60 | Flat Washer - M20 (Hardened) | 12 |
| (3***0) | Rear Axle Ass'Y | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Torque Converter And Transmission : Rear Drive Shaft
| 36***00 | Drive Shaft Ass'Y,Rear | 1 |
| 36***50 | Yoke | 1 |
| 41***20 | Spider Ass'Y | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Torque Converter And Transmission : Transfer (1/2)
| 01***12 | Bolt - M8 - 1.25 X 12 | 2 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 4 |
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 8 |
Komatsu : Wa40-3(S/N 19001-Up) : Torque Converter And Transmission : Transfer (2/2)
| 01***16 | Bolt | 1 |
| 04***87 | Ball | 3 |
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
Komatsu : Wa40-3(S/N 19001-Up) : Torque Converter And Transmission : Transfer (Filter)
| 01***30 | Bolt,(Not Used When Towing Winch) | 2 |
| 01***00 | Bolt,(For Front Brake Release) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Torque Converter And Transmission : Transfer (Pump And Motor Drain Line)
| 01***35 | Bolt | 2 |
| 01***40 | Bolt,Reamer | 4 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Torque Converter And Transmission : Transfer Mounting Parts
| 01***30 | Bolt,(Not Used When Towing Winch) | 6 |
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 1 |
| 01***05 | Capscrew | 5 |
Work Equipment
Komatsu : Wa40-3(S/N 19001-Up) : Work Equipment : Bucket Cylinder
| (3***0) | Cylinder Group,Dump | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Work Equipment : Bucket Positioner
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Work Equipment : Bucket? 0.5m3
| 36***30 | Edge (Welded) | 1 |
| 36***80 | Plate (Welded) | 2 |
| 36***10 | Bucket | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Work Equipment : Cutting Edge
| 01***45 | Washer,(For Travel Motor) (Not Show) | 7 |
| 02***50 | Bolt | 7 |
| 02***15 | Nut (Op) | 7 |
Komatsu : Wa40-3(S/N 19001-Up) : Work Equipment : Dumping Fork
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 09***35 | Plate? Name,(Limited Supply) (English) | 1 |
| 36***10 | Adapter | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Work Equipment : Lift Arm And Bellcrank
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 13 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 11 |
| 07***75 | Fitting,Grease (Without Lub. Piping) | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Work Equipment : Lift Arm And Bellcrank (With Front Attachment)
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 13 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 11 |
| 07***75 | Fitting,Grease (Without Lub. Piping) | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Work Equipment : Lift Cylinder
| (3***0) | Cylinder Group,Lift | 2 |
Komatsu : Wa40-3(S/N 19001-Up) : Work Equipment : Lumber Fork
| 01***20 | Bolt,(For Mono Lever Steering) | 8 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
| 04***20 | Spring Pin | 1 |
Komatsu : Wa40-3(S/N 19001-Up) : Work Equipment : Multi Coupler
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***10 | Nut,(Without Air Conditioner) | 4 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 2 |
WA40-3(S/N 19001-UP) serial number reference
The ID plate for the WA40-3 is riveted to the frame on the right-hand side, typically behind the front fender or along the edge under the operator's cab, and the full number is often stamped again directly into the frame steel next to the plate for cross-check. This generation does not use a Caterpillar-style 3-letter alpha prefix; instead the model line on the plate carries a short suffix code (e.g. -CB, -CN) appended to the base model number, and more than one suffix code can share the same serial range as the unsuffixed base model. Read the model line for the suffix and the serial line for the number, then match both exactly to the parts book covering that model-and-suffix combination, since picking the wrong suffix within the same serial range points to the wrong parts book.
| Prefix | Identifies | Notes |
|---|---|---|
| CB | WA40-3-CB, S/N 19001-UP - factory parts-book configuration break (exact meaning of the CB code undocumented) | This suffix marks a distinct parts-book break within the S/N 19001-UP range for this model, separate from the unsuffixed base 19001-UP listing and from the earlier 10001-18999 break. Exact meaning of the CB code (region, cab spec, or plant) is not documented in available sources - confirm against the ID plate or ask your dealer for feature specifics. Engine is the Komatsu-built S3D84E-family diesel (same base block as the Yanmar 3TNE84/3TNE84T design) shared across the WA40-3 line; the exact engine suffix for this break is not separately confirmed, so verify the nameplate against the parts book for this range rather than assuming the earlier break's suffix. |
| CN | WA40-3-CN, S/N 19001-UP - factory parts-book configuration break (exact meaning of the CN code undocumented, confirm with dealer) | This suffix marks another distinct parts-book break within the S/N 19001-UP range, alongside the CB break and the unsuffixed base listing for the same serial range. Its existence as a genuine separate parts-book entry is verified; the exact configuration or market intent behind the CN code is not documented in available sources - confirm with your dealer or the ID plate before ordering against this break specifically. |
Frequently asked questions
What engine does the Komatsu WA40-3 (S/N 19001-UP) use?
It runs a Komatsu-badged S3D84E-family three-cylinder diesel, a mechanically-governed, indirect-injection engine derived from a Yanmar industrial block. Output is in the high-20-kW range (roughly 27 kW / 36 hp). There is no ECM or electronic fault-code system on this engine.
What is the operating weight of the Komatsu WA40-3 (S/N 19001-UP)?
Operating weight runs roughly 3,055-3,205 kg (about 6,735-7,065 lb) depending on bucket, counterweight, and tire configuration. Treat any single published figure as configuration-dependent rather than a fixed spec.
What replaced the Komatsu WA40-3 (S/N 19001-UP)?
No parts-catalog record documents a direct successor SKU for this specific serial block; the Overseas Version parts trail simply ends at 19001-UP. Komatsu later reused the WA40 name on a later-generation compact loader, but that machine is not documented as a direct replacement for this parts family. Verify against your dealer's current lineup if sourcing a replacement machine.
What WA40-3(S/N 19001-UP) owners discuss
What do owners and techs generally say about the reliability of the WA40-3 (S/N 19001-up) as a compact wheel loader?
Community consensus treats this loader as a simple, mechanically governed machine built for light yard, municipal, and small-site work rather than a high-cycle production loader. Reported failures trace mostly to neglected maintenance - dirty oil, clogged radiator fins, dry grease points - rather than design faults. Because it predates electronic engine and transmission controls, problems tend to be straightforward mechanical or hydraulic wear items rather than software or sensor faults. Owners who stay on top of fluid and filter service report these units running well past the point where they expected trouble.
What quirks come up around the engine used in this loader?
This loader uses a small mechanically governed diesel from Komatsu's compact-equipment engine family, built off an industrial engine block rather than a scaled-down version of Komatsu's larger wheel-loader engines. It runs a mechanical injection pump with no electronic engine control, so there is no diagnostic fault-code system to pull on a scan tool. A warning light with no code on this engine almost always means a basic sender or switch has tripped - oil pressure, coolant temperature, or charge circuit - not a hidden electronic fault. Owners note it responds well to clean fuel and regular air-filter service, but injector performance and compression fall off gradually with age, showing up as harder cold starts and light exhaust smoke rather than sudden failure.
What hydraulic and drivetrain behaviors are typical for this machine, and what do they signal?
The loader drives through a torque-converter powershift transmission, and the same hydraulic system feeds the lift and tilt circuit along with steering. Sluggish bucket response, heavy or slow steering, and delayed directional changes are the classic symptoms owners describe, and they're consistently traced back to dirty or degraded hydraulic oil rather than outright pump failure - internal wear starts well before the oil looks or smells obviously bad. Letting hydraulic and transmission filters run past service intervals is the most cited root cause of pump and valve wear on loaders this size. Because steering and directional control share one hydraulic supply, any loss of steering assist or delayed direction response is safety-related - have your dealer verify hydraulic and steering relief pressures before the machine goes back to work.
What wear patterns show up on the frame, linkage, and tires on machines like this?
As an articulated 4-wheel-drive loader, the center articulation joint and steering cylinder pins are the structural wear points checked first in the field - play here shows up as a clunk on direction change or a wander in a straight line. Loader linkage pins and bucket pivot pins are the next most-cited wear item, especially on machines with a spotty greasing history, since a dry pin scores the bushing bore and accelerates looseness. Tire wear is usually treated as a maintenance and cost item rather than a machine defect - uneven wear is more often linked to toe alignment or tire pressure than to a driveline problem on this class of loader.
What electrical issues come up, and why is there no fault code to look up?
This generation of loader runs a basic charging and warning-lamp circuit rather than a networked electronic monitoring system, so complaints in the field tend to be simple: a weak battery or slow crank, a corroded ground strap, a charge light from a tired alternator or loose belt, or an intermittent gauge reading traced to a corroded bulkhead connector. Troubleshooting a random warning-light complaint on this era of machine starts and ends at the wiring and connectors, not a control module, because there's no engine or transmission ECU to log a fault against.
What do owners say about cold-weather starting and dusty-environment cooling on this machine?
In dusty or agricultural settings, a partially clogged radiator and oil cooler core get cited repeatedly as the top cause of running hot under load. Reverse-blowing the fin pack clean and rinsing it out is the standard fix recommended before assuming a water pump or thermostat problem. For cold starts, this engine relies on glow plugs and battery condition rather than any advanced electronic starting strategy - a slow-cranking battery or one weak glow plug is the most common cause of a hard, smoky cold start, and it's checked with a simple resistance test on each plug rather than a scan tool.
What should a buyer check before purchasing a used WA40-3 (S/N 19001-up)?
Confirm the serial number actually falls in the 19001-and-up range before assuming any specific fluid, filter, or hydraulic spec applies, since Komatsu split several running changes at that break and earlier WA40 variants are not interchangeable in every respect. Walk the articulation joint and steering cylinders checking for pin play, cycle the loader linkage through full range looking for binding or knocking bucket pins, and run the hydraulics cold to compare lift, tilt, and steering response before and after warm-up. Check for oil residue at the transmission case and axle housings, inspect tire condition and wheel bearing play, and ask for service records showing radiator cleaning and fluid change intervals given how dust-sensitive the cooling and hydraulic systems are on this class of loader. Have a dealer or qualified technician verify service brake and parking brake function and hydraulic relief pressures before putting a used unit back to work.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
Serial-range & configuration variants
This page covers the Komatsu WA40-3(S/N 19001-UP). Related factory variants of the same model family:
WA40-3(S/N 10001-UP)WA40-3(S/N 10001-18999)
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