Komatsuwheel loaderlarge (wa400 - )
Komatsu WA450-3A-TW(S/N 53001-UP (FOR TAIWAN TUNNEL))
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu WA450-3A-TW is a heavy-duty wheel loader specifically configured for Taiwan tunnel applications, identified by serial number 53001-UP. This machine belongs to the high-capacity class of loaders, powered by the Komatsu SA6D125E-2C-TA engine. It features a robust design optimized for continuous loading and hauling cycles in demanding environments. The series is part of Komatsu's established lineage of heavy earthmoving equipment, providing significant breakout force and bucket capacities ranging from 3.6 m³ (4.7 yd³) to 5.2 m³ (6.8 yd³).
Across generations, the WA450-3A series introduced advancements in electronic control systems and hydraulic efficiency compared to earlier variants. In today's used market, this specific Taiwan tunnel configuration remains a critical asset due to its specialized durability for underground or high-dust environments. Maintenance of the powertrain and hydraulic components is vital for preserving resale value. The availability of Komatsu genuine parts and the integration of KOMTRAX telematics allow fleet managers to monitor fuel consumption, fault codes, and service intervals remotely, ensuring long-term operational stability.
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 WA450-3A-TW(S/N 53001-UP (FOR TAIWAN TUNNEL)) specifications
Engine
| Model | SA6D125E-2C-TA (per equipment guide for serial 53001-Up) |
| Gross Power | 290 hp |
| Net Power | 264 hp |
| Cylinders | 6 |
| Displacement | 664 cu in |
| Aspiration | Water-cooled |
| Bore | 5 in |
| Stroke | 5.8 in |
Weights
| Operating Weight | 108,798.2 lb |
Dimensions
| Length With Bucket On Ground | 27.53 ft |
| Width Over Tires | 9.88 ft |
| Height To Top Of Cab | 11.67 ft |
| Wheelbase | 11.16 ft |
| Ground Clearance | 1.73 ft |
| Hinge Pin - Max Height | 13.9 ft |
| Reach At Max Lift And Dump | 3.86 ft |
| Bucket Width | 10.41 ft |
| Dump Clearance At Max Raise | 10.06 ft |
| Digging Depth | 1.04 ft |
Performance
| Max Speed - Forward | 21.1 mph |
| Max Speed - Reverse | 22.4 mph |
| Breakout Force | 42,730 lb |
| Bucket Capacity - Heaped | 5.5 yd³ |
| Bucket Capacity - Struck | 4.71 yd³ |
| Turning Radius | 22.5 ft |
Service capacities (summary)
| Fuel Capacity | 100.7 gal |
| Hydraulic System Fluid Capacity | 54.5 gal |
| Engine Oil Fluid Capacity | 9 gal |
| Cooling System Fluid Capacity | 14.6 gal |
| Transmission Fluid Capacity | 17.2 gal |
| Front Axle/Diff Fluid Capacity | 17.2 gal |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
WA450-3A-TW(S/N 53001-UP (FOR TAIWAN TUNNEL)) fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | not documented for this exact serial range — verify with your dealer | not documented for this exact serial range — verify with your dealer |
| Cooling system | not documented for this exact serial range — verify with your dealer | not documented for this exact serial range — verify with your dealer |
| Fuel tank | not documented for this exact serial range — verify with your dealer | not documented for this exact serial range — verify with your dealer |
| Transmission/powertrain compartments | not documented for this exact serial range — verify with your dealer | Komatsu TO10 |
| Final drives (each) | not documented for this exact serial range — verify with your dealer | not documented for this exact serial range — verify with your dealer |
| Hydraulic system and tank | not documented for this exact serial range — verify with your dealer | Komatsu HO46 (ISO VG 46) |
| Axles/differentials | not documented for this exact serial range — verify with your dealer | not documented for this exact serial range — verify with your dealer |
| Grease | not documented for this exact serial range — verify with your dealer | not documented for this exact serial range — verify with your dealer |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Komatsu WA450-3A-TW(S/N 53001-UP (FOR TAIWAN TUNNEL)) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
Servicing the WA450-3A-TW(S/N 53001-UP (FOR TAIWAN TUNNEL)) beyond the schedule
Predictive Maintenance & Fluid Analysis
Utilize the KOWA (Komatsu Oil Wear Analysis) program at every major interval to monitor engine oil for wear metals like iron, copper, and lead. For the hydraulic system, track particle counts and viscosity changes to prevent pump failure. Regularly check coolant for pH levels and SCA concentration to protect against internal corrosion. Monitoring these laboratory-grade results via KOMTRAX allows for preemptive action before component damage occurs.
Corrective & Common Repairs
Watch for transmission shifting issues, which can stem from corroded harness connectors between the control box and cab. Inspect fuel systems for diesel dilution in engine oil, a condition that causes hard starting and white smoke. If hydraulic movement becomes sluggish, inspect the main control valve and piston pump assemblies. Ensure all electrical sensors are checked for corrosion to prevent intermittent dashboard failures or unexpected machine shutdowns.
Overhaul & Rebuild Points
Plan major overhauls around the 2,000-hour mark, focusing on a full hydraulic oil change and transmission service. Critical rebuild points include evaluating the turbocharger for excessive play and inspecting engine valve clearances. For high-hour machines, assess the condition of the main control valve and hydraulic pump assembly. Comprehensive structural inspections of the boom and bucket linkage are required to identify fatigue in heavy-duty tunnel applications.
Seasonal & Environment Servicing
In dusty tunnel environments, prioritize frequent air filter element cleaning and radiator fin debris removal to prevent overheating. During cold weather operation, ensure all fluids meet the required viscosity for low temperatures and check battery load capacity. For machines in high-moisture areas, inspect all pins, bushings, and articulation points for accelerated wear. Regularly drain water from the fuel separator to prevent fuel system contamination.
WA450-3A-TW(S/N 53001-UP (FOR TAIWAN TUNNEL)) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 07281-00197 | Clamp,(With Pre-Fuel Filter) | Fuel system service | Check fitment → |
| 416-15-05130 | Service Kit, Transmission Oil Filter | Lubrication service | Check fitment → |
| 07063-01142 | Element, Filter - Hydraulic Tank | Scheduled service item | Check fitment → |
| 285-62-17320 | Element,(Wa320-1m?1p) | Scheduled service item | Check fitment → |
| 419-60-25410 | Valve Assembly - Filter Bypass | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
WA450-3A-TW(S/N 53001-UP (FOR TAIWAN TUNNEL)) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| E10 | Engine controller power failure or engine control drive system circuit malfunction (may cause engine stall) | ECM power connections, fuses, or ground wire issues | Inspect ECM power connections, fuses, and ground wires |
| E11 | Engine control system failure (output power reduced to protect engine) | High coolant temperature, low oil pressure, or clogged air filter | Check coolant temperature, oil pressure, and air filter status |
| CA115 | Engine crankshaft speed sensor failure or engine/backup speed sensor error | Broken sensor, wiring issue, or connector corrosion | Replace the speed sensor and verify voltage at the pin connector |
| CA122 | Intake air pressure sensor feedback voltage is too high | Sensor malfunction or wiring fault | Verify the intake pressure sensor and associated wiring |
| CA123 | Intake air pressure sensor feedback voltage is too low | Sensor short circuit or airflow restriction | Check for a sensor short or an airflow restriction |
| CA234 | Engine overspeed | Throttle calibration error, excessive engine load, or operator misuse | Verify throttle calibration and check engine load cycle |
| CA451 | Common rail pressure sensor feedback value is too high | Malfunction in the rail sensor or an actual overpressure condition | Diagnose the fuel rail pressure sensor or pump lines |
| CA452 | Common rail pressure sensor feedback value is too low | Malfunction in the rail sensor or an actual underpressure condition | Diagnologize the fuel rail pressure sensor or pump lines |
| AA10NX | Air cleaner clogging | Accumulated dust/debris in air filter | Replace the air filter element |
| B@BCNS | Engine coolant overheating | Low coolant level, radiator blockage, or fan belt failure | Check radiator fins, fan belt, and coolant level |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
WA450-3A-TW(S/N 53001-UP (FOR TAIWAN TUNNEL)) attachments & work tools
Buckets
Standard bucket capacities range from 3.6 m³ (4.7 yd³) to 5.2 m³ (6.8 yd³). Available configurations include struck and heaped capacity variants for different material types.
Cutting Edges
Replacement cutting edges are available for maintaining bucket performance in abrasive applications.
Couplers
Quick coupler systems are available to facilitate rapid attachment changes during operation.
Hydraulic Systems & Kits
The machine features a hydraulic flow of 71.3 GPM (270 L/min) at 3,500 psi (241 bar). Hydraulic kits may be required for specific auxiliary tool implementations.
Factory Options & Guarding
Available factory options include an auto-greasing system and load meter monitoring. Specialized configurations such as the 'avance plus' may include integrated option displays.
All WA450-3A-TW(S/N 53001-UP (FOR TAIWAN TUNNEL)) assemblies by section
Every catalogued assembly group for the Komatsu WA450-3A-TW(S/N 53001-UP (FOR TAIWAN TUNNEL)). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Accessory And Tool
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Accessory And Tool : Fire Extinguisher (Tunnel Spec.) (Except Japan)(#54001-)
| 01***12 | Bolt,(See Fig. K0210-16a0) | 4 |
| 09***00 | Fire Extinguisher,(English) | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Accessory And Tool : Tool (Tunnel Spec.)
| 07***59 | Clamp - Drain Hose | 1 |
| 07***50 | Pump, (Bellows Type) | 1 |
| 07***03 | Cartridge - Grease | 1 |
Cooling System
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Cooling System : Cooling Line (Steering And Radiator Hose Piping)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 3 |
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 7 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Cooling System : Cooling Line (Transmission Piping Mounting)
| 01***20 | Bolt,(For Mono Lever Steering) | 6 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 01***32 | Washer, (Without Emergency Steering) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Cooling System : Radiator (Radiator Mounting)
| 01***90 | Screw | 2 |
| 01***30 | Bolt, Mounting - Front Hand Rails | 2 |
| 01***35 | Bolt,R.H. (For Add. Air Compressor) | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Cooling System : Radiator (Radiator Parts)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 16 |
| 01***20 | Bolt,(For Mono Lever Steering) | 8 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Cooling System : Radiator (Radiator Piping)
| 01***90 | Screw | 2 |
| 07***75 | O-Ring,Cylinder Head | 1 |
| 07***87 | Tube, Over Flow | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Cooling System : Radiator (Steering Oil Cooler Line)
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***11 | Nut,(With Under Mirror) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Cooling System : Radiator (Transmission Oil Cooler Line)
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***09 | Nut, Lock | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Cooling System : Radiator Fan Guard Seal
| 01***16 | Bolt - Starting Motor Ground Cable | 12 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 12 |
| 42***30 | Seal, Door | 2 |
Electrical System
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Electrical System : Battery
| 08***00 | Terminal? (+),(10l) (Not Shown) | 1 |
| 08***01 | Terminal? (-),(20l) (Not Shown) | 1 |
| 08***15 | Battery? Wet,(Sandy And Dusty Spec.) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Electrical System : Battery (Large Capacity)
| 08***00 | Terminal? (+),(10l) (Not Shown) | 1 |
| 08***01 | Terminal? (-),(20l) (Not Shown) | 1 |
| 69***60 | Battery (195g51),(Large Capacity Type) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Electrical System : Battery Box (Box And Battery Mounting) (Tunnel Spec.)
| 01***30 | Bolt - Pin Mounting | 2 |
| 01***50 | Bolt,(For D60pl) | 4 |
| 01***60 | Capscrew | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Electrical System : Battery Box (Electrical Battery Line)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Electrical System : Battery Box (Rear Combination Lamp) (Tunnel Spec.)
| 01***35 | Screw, Mount Lens | 8 |
| 01***12 | Bolt,(With Speedometer) | 8 |
| 01***16 | Bolt, Mount Solenoid Valve | 8 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Electrical System : Beacon Lamp (Tunnel Spec.)
| 01***12 | Bolt,(With Speedometer) | 1 |
| 01***16 | Bolt, Mount Solenoid Valve | 2 |
| 01***20 | Bolt,(Forwarded Individually Parts) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Electrical System : Electrical Instrument (Starter Switch) (Tunnel Spec.)
| 01***12 | Screw (Instr. Panel W/O Cab) | 2 |
| 01***08 | Screw - Holder | 6 |
| 01***20 | Screw | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Electrical System : Electrical System (M.D.C. Monitor Line) (Front Frame Line)
| 04***10 | Clip,(With Accumulator) | 3 |
| 08***19 | Band - Tie Hose To Wire Harness | 9 |
| 42***21 | Wiring Harness | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Electrical System : Electrical System (M.D.C. Monitor) (Bucket Auto Leveling System) (Front Frame Line)
| 01***16 | Bolt - Starting Motor Ground Cable | 13 |
| 04***10 | Clip,See Fig. K4010-05a0 | 3 |
| 04***10 | Clamp | 10 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Electrical System : Horn(#54001-)
| 01***25 | Bolt - Relay Mounting | 4 |
| 42***10 | Horn Assembly | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Electrical System : Light And Mounting (Head Lamp And Support) (Lamp Guard Type)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 6 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***25 | Screw - Antenna Mounting | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Electrical System : Wiring Harness (Ceramic Muffler Related Parts) (Tunnel Spec.)
| 01***25 | Bolt - Relay Mounting | 3 |
| 01***16 | Bolt - Starting Motor Ground Cable | 17 |
| 08***36 | Tie, Cable | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Electrical System : Wiring Harness (Front Frame Line)
| 01***16 | Bolt - Starting Motor Ground Cable | 11 |
| 04***10 | Clip,(With Accumulator) | 5 |
| 04***10 | Clip,(With Accumulator) | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Electrical System : Wiring Harness (Front Frame Line) (Tunnel Spec.)
| 01***16 | Bolt - Starting Motor Ground Cable | 11 |
| 04***10 | Clip,(With Accumulator) | 5 |
| 04***10 | Clip,(With Accumulator) | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Electrical System : Wiring Harness (M.D.C. Monitor Line) (Rear Frame Line)
| 08***14 | Band,(For Additional Fuel Strainer) | 3 |
| 42***71 | Wiring Harness | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Electrical System : Wiring Harness (Rear Frame Line)
| 01***16 | Bolt - Starting Motor Ground Cable | 13 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
| 01***55 | Bolt, Mount Dryer To Bracket And Frame | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Electrical System : Wiring Harness (Slow Blow Fuse And Battery Line)
| 01***08 | Screw, Terminal | 2 |
| 01***20 | Screw (Not Illustrated) | 2 |
| 01***16 | Bolt, Mount Solenoid Valve | 2 |
Engine Related Parts
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Engine Related Parts : Engine (Connector And Sensor)(Tunnel Spec.? Ceramic Muffler) : Unit_01_of_02
| 61***61 | Sensor,Exhaust Temperature | 1 |
| 61***60 | Connector | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Engine Related Parts : Engine (Connector And Sensor)(Tunnel Spec.? Ceramic Muffler) : Unit_02_of_02
| 61***61 | Sensor,Exhaust Temperature | 1 |
| 61***60 | Connector | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Engine Related Parts : Engine (Drain Hose Mounting)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
| 08***36 | Tie, Cable | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Engine Related Parts : Engine (Electrical Engine Harness) (Tunnel Spec.? Catalyzer Muffler)
| 01***16 | Bolt - Box Mounting | 1 |
| 01***25 | Bolt, Pinlock | 1 |
| 01***16 | Bolt - Starting Motor Ground Cable | 14 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Engine Related Parts : Engine (Electrical Engine Harness)(Tunnel Spec.? Ceramic Muffler)
| 01***25 | Bolt, Pinlock | 1 |
| 01***16 | Bolt - Starting Motor Ground Cable | 15 |
| 01***20 | Bolt - Mount Risers To Cab Floor | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Engine Related Parts : Engine (Hose Parts)
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 04***10 | Clip,(For Mono Lever Steering) | 2 |
| 07***67 | Clamp, Hose | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Engine Related Parts : Engine (Mounting And Oil Pan Drain)
| 01***05 | Bolt | 4 |
| 01***50 | Bolt,(Spark Arrester Spec.) | 2 |
| 01***10 | Bolt,(With Joy Stick Steering) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Engine Related Parts : Engine Mounting
| 01***50 | Bolt,(Spark Arrester Spec.) | 2 |
| 01***40 | Screw | 2 |
| 01***50 | Screw | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Engine Related Parts : Exhaust Pipe (Tunnel Spec.? Ceramic Muffler)
| 01***45 | Screw | 1 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 1 |
| 61***52 | Pipe,Exhaust | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Engine Related Parts : Exhaust Pipe(#54001-)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 12***40 | Washer,(Without Canopy) | 4 |
| 42***10 | Pipe,Exhaust | 1 |
Fuel Tank And Related Parts
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Fuel Tank And Related Parts : Fuel Tank (Cover And Breather Hose Piping)
| 01***10 | Screw,(For Lighter) | 5 |
| 01***16 | Bolt - Starting Motor Ground Cable | 7 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Fuel Tank And Related Parts : Fuel Tank (Cover And Breather Hose Piping) (Tunnel Spec.? Ceramicmuffler)
| 01***10 | Screw,(For Lighter) | 5 |
| 01***16 | Bolt - Starting Motor Ground Cable | 7 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Fuel Tank And Related Parts : Fuel Tank (Fuel Piping)
| 01***00 | Bolt (Op) | 3 |
| 01***16 | Bolt, Mount Solenoid Valve | 2 |
| 01***16 | Bolt - Starting Motor Ground Cable | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Fuel Tank And Related Parts : Fuel Tank (Fuel Piping)(Tunnel Spec.? Ceramic Muffler)
| 01***40 | Bolt,(For Slag Handling) (For Usa) | 4 |
| 01***00 | Bolt (Op) | 3 |
| 01***16 | Bolt, Mount Solenoid Valve | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Fuel Tank And Related Parts : Fuel Tank (Water Separator Piping)
| 07***11 | Tube, To Fuel Injection Pump | 1 |
| 07***14 | Tube, Vent | 1 |
| 07***97 | Clamp,(With Pre-Fuel Filter) | 1 |
Guard
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Bulkhead (Accumulator Charge Valve Drain Line)
| 07***34 | O-Ring,(Not Used When (B) Spec.) | 1 |
| 07***34 | O-Ring,(For Without Brake Assistor) | 1 |
| 07***17 | Hose (Op) | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Bulkhead (Accumulator Charge Valve To Accumulator Piping)
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 2 |
| 01***40 | Bolt,(Shim 3-Piece) | 3 |
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Bulkhead (Accumulator Charge Valve To P.P.C. Valve Piping)
| 01***16 | Bolt - Starting Motor Ground Cable | 2 |
| 01***09 | Nut,(For Japan) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Bulkhead (Accumulator Charge Valve)
| 07***11 | O-Ring,(Tm8202-009) | 1 |
| 07***14 | O-Ring,(Without Maintenance Monitor) | 1 |
| 07***18 | O-Ring (Kit) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Bulkhead (Accumulator To Single Brake Valve)
| 07***34 | O-Ring,(Not Used When (B) Spec.) | 1 |
| 07***34 | O-Ring,(For Without Brake Assistor) | 1 |
| 07***21 | Hose Assembly | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Bulkhead (Bulkhead Cover) (Tunnel Spec.)
| 01***16 | Bolt - Starting Motor Ground Cable | 6 |
| 01***20 | Bolt - Mount Risers To Cab Floor | 4 |
| 42***40 | Cover | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Bulkhead (Bulkhead Harness)
| 01***16 | Bolt - Starting Motor Ground Cable | 6 |
| 04***10 | Clip,(With Accumulator) | 4 |
| 04***10 | Clip,(With Accumulator) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Bulkhead (Emergency Parking Brake Release Line)
| 01***16 | Bolt, Mount Solenoid Valve | 2 |
| 01***16 | Bolt - Starting Motor Ground Cable | 6 |
| 04***10 | Clip,See Fig. K4010-17a0 | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Bulkhead (P.P.C. Pump To Accumulator Charge Valve Piping)
| 01***16 | Bolt - Starting Motor Ground Cable | 5 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
| 01***85 | Bolt,(For Reversible Fan) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Bulkhead (Parking Brake Release Valve Inner Parts)(#53001-54037)
| 41***12 | Valve, Emergency Parking Brake | 1 |
| 41***23 | Solenoid | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Bulkhead (Parking Brake Release Valve Inner Parts)(#54038-)
| 41***13 | Valve, Parking Brake | 1 |
| UC***06 | O-Ring | 1 |
| UC***09 | O-Ring | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Bulkhead (Radiator Reserve Tank)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***20 | Bolt,(Forwarded Individually Parts) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Bulkhead (Tunnel Spec.)
| 01***80 | Capscrew | 4 |
| 01***12 | Screw,(For Side Lamp) (Not Shown) | 5 |
| 01***16 | Bolt - Starting Motor Ground Cable | 6 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Counter Weight (Rear Guard)(Tunnel Spec.)
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 24 |
| 01***40 | Bolt,(For Slag Handling) (For Usa) | 8 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 24 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Counter Weight (Tunnel Spec.)
| 04***00 | Adapter Sleeves | 2 |
| 22***80 | Washer, Mount | 6 |
| 41***30 | Screw | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Cover (For Floor Frame)
| 01***16 | Bolt - Starting Motor Ground Cable | 12 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 16 |
| 41***10 | Insulating Mat | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Front Fender (Tunnel Spec.)
| 01***30 | Bolt,(Not Used When Towing Winch) | 8 |
| 01***30 | Bolt, Mounting - Front Hand Rails | 4 |
| 01***10 | Nut, Plate Mounting | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Hand Rail (Fire Extinguisher Bracket) (Tunnel Spec.)
| 01***11 | Nut,(With Under Mirror) | 4 |
| 01***23 | Washer,(With Auto Emergency Steering) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Hand Rail (Rear View Mirror Stay) (Tunnel Spec.)
| 01***11 | Nut,(With Under Mirror) | 8 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
| 07***42 | Clip,(With Under Mirror) | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Hand Rail (Tunnel Spec.)
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 16 |
| 42***50 | Hand Rail,R.H | 1 |
| 42***61 | Hand Rail,R.H | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Hood (Engine Hood And Mounting Parts) (Tunnel Spec.? Catalyzer Muffler)
| 01***85 | Screw | 4 |
| 01***20 | Bolt - Mount Risers To Cab Floor | 2 |
| 01***45 | Bolt,(Noise Abatement Part) | 3 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Hood (Engine Hood And Mounting Parts) (Tunnel Spec.? Ceramic Muffler)
| 01***85 | Screw | 4 |
| 01***20 | Bolt - Mount Risers To Cab Floor | 2 |
| 01***45 | Bolt,(Noise Abatement Part) | 3 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Hood (Engine Hood And Mounting Parts)(Tunnel Spec.?Ceramic Muffler)(#54001-)
| 01***16 | Bolt, Mount Solenoid Valve | 2 |
| 01***16 | Bolt - Starting Motor Ground Cable | 4 |
| 41***70 | Underlay | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Hood (Rear Guard Harness)
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 08***10 | Connector, Clip | 1 |
| 42***21 | Wiring Harness, Rear Guard | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Hood (Seal And Plate)
| 01***16 | Bolt, Mount Solenoid Valve | 2 |
| 01***16 | Bolt - Starting Motor Ground Cable | 4 |
| 41***70 | Underlay | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Hood (Upper And Side Cover Seal)(Tunnel Spec.? Catalyzer Muffler)
| 01***20 | Bolt,See Fig. K4010-11a0 | 2 |
| 01***20 | Bolt - Mount Risers To Cab Floor | 8 |
| 01***05 | Nut,Voice Alarm | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Hood (Upper And Side Cover Seal)(Tunnel Spec.? Ceramic Muffler)
| 01***20 | Bolt,See Fig. K4010-11a0 | 2 |
| 01***05 | Nut,Voice Alarm | 2 |
| 01***16 | Washer,(For 35a Alternator) | 8 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Hood Door (Sheet)(#54001-)
| 42***41 | Sheet, L.H | 1 |
| 42***51 | Sheet, R.H | 1 |
| 42***61 | Sheet | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Hood Door(#54001-)
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 4 |
| 01***20 | Bolt - Mount Risers To Cab Floor | 4 |
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 20 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Mirror (Hand Rail Mirror) (Tunnel Spec.)
| 08***16 | Mirror,(Tbg Spec.) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Radiator Guard (Rear Work Lamp And Harness)
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 2 |
| 01***11 | Nut - Mounting | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Radiator Guard (Sheet)
| 42***10 | Insulating Mat | 1 |
| 42***20 | Insulating Mat | 3 |
| 42***30 | Insulating Mat | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Radiator Guard (With Protector)
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 4 |
| 01***55 | Bolt,(With Joy Stick Steering) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Rear Fender And Ladder (Tunnel Spec.)
| 01***55 | Bolt - Mount Cage To Transmission Case | 2 |
| 01***35 | Bolt,(With Rops) | 4 |
| 01***50 | Bolt,(Without Rops Guard? Canopy) | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Guard : Rear Full Fender
| 01***16 | Bolt, Mounting Transmission Control Switch | 16 |
| 01***20 | Bolt,(Forwarded Individually Parts) | 8 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 8 |
Hydraulic System
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : E.C.S.S. Valae(#55001-55141)
| 07***10 | O-Ring | 1 |
| 42***93 | Valve, E.C.S.S | 1 |
| 42***10 | Compression Spring | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : E.C.S.S. Valae(#55142-)
| 07***10 | O-Ring | 1 |
| 42***00 | Valve,E.C.S.S | 1 |
| 42***10 | Compression Spring | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Hydraulic Piping (Accumulator)(#54001-)
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 8 |
| 01***08 | Nut, Accumulator Mounting | 2 |
| 07***34 | O-Ring,(For 2-Actuater Attachment) | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Hydraulic Piping (Control And Cut-Off Valve Drain Line) (With 3-Spool Valve)
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 2 |
| 01***60 | Bolt - Upper Cooler Inlet Tubemounting | 2 |
| 01***70 | Bolt,(For 75a Alternator) | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Hydraulic Piping (Control And Cut-Off Valve Drain Line) (With 3-Spool Valve) (Tunnel Spec.)(#54001-)
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 2 |
| 01***60 | Bolt - Upper Cooler Inlet Tubemounting | 2 |
| 01***70 | Bolt,(For 75a Alternator) | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Hydraulic Piping (Delivery Line Hose)
| 01***32 | Washer, (Without Emergency Steering) | 8 |
| 07***38 | O-Ring, (Without Emergency Steering) | 2 |
| 07***15 | Hose | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Hydraulic Piping (Drain Line Hose)
| 01***32 | Washer, (Without Emergency Steering) | 8 |
| 07***48 | O-Ring, (Without Emergency Steering) | 2 |
| 07***16 | Hose | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Hydraulic Piping (Dump Cylinder Line) (With 3-Spool Valve)
| 01***45 | Bolt, Mounting Cranking Motor | 8 |
| 01***11 | Nut,(With Under Mirror) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Hydraulic Piping (E.C.S.S. Less)(#54001-)
| 01***32 | Washer, (Without Emergency Steering) | 8 |
| 07***32 | O-Ring,(See Fig. H0312-01a0-4) | 2 |
| 07***34 | O-Ring,(For 2-Actuater Attachment) | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Hydraulic Piping (E.C.S.S. Line)(#54001-55141)
| 01***16 | Bolt - Starting Motor Ground Cable | 3 |
| 01***32 | Washer, (Without Emergency Steering) | 16 |
| 04***11 | Clamp, Vinyl | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Hydraulic Piping (E.C.S.S. Line)(#55142-)
| 01***16 | Bolt - Starting Motor Ground Cable | 5 |
| 01***32 | Washer, (Without Emergency Steering) | 16 |
| 04***11 | Clamp, Vinyl | 3 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Hydraulic Piping (Front Attachment Line) (With 3-Spool Valve)
| 01***55 | Bolt, Mount Dryer To Bracket And Frame | 4 |
| 01***40 | Bolt,(For Operator'S Cab) | 8 |
| 01***09 | Nut, Lock | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Hydraulic Piping (Lift Cylinder Line)
| 01***45 | Bolt, Mounting Cranking Motor | 8 |
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 2 |
| 01***45 | Bolt, Bracket Mounting | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Hydraulic Piping (P.P.C. Valve Line And Drain Line Mounting) (With 3-Spool Valve)
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***16 | Bolt - Starting Motor Ground Cable | 2 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 5 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Hydraulic Piping (P.P.C. Valve Line And Drain Line Piping)
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 1 |
| 01***35 | Bolt, Mount Bracket To Floor | 1 |
| 07***08 | Plug,See Fig. K4010-63a0 | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Hydraulic Piping (P.P.C. Valve Line And Pilot Line Mounting) (With 3-Spool Valve)
| 01***16 | Bolt - Starting Motor Ground Cable | 5 |
| 01***45 | Bolt, Bracket Mounting | 2 |
| 01***07 | Nut,(With Body Positioner) | 8 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Hydraulic Piping (P.P.C. Valve Line Mounting Plate) (With 3-Spool Valve)
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 4 |
| 01***07 | Nut,(With Body Positioner) | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Hydraulic Piping (Steering Oil Cooler Line)
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 1 |
| 01***45 | Bolt, Bracket Mounting | 4 |
| 01***09 | Nut,(For Japan) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Hydraulic Piping (Steering Pump Line Hose)
| 01***32 | Washer, (Without Emergency Steering) | 8 |
| 07***32 | O-Ring,(See Fig. H0312-01a0-4) | 2 |
| 07***14 | Hose Assembly | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Hydraulic Piping (Switch Pump To Cut-Off Valve Line)
| 01***20 | Capscrew | 2 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Hydraulic Piping (Valve And Mounting Parts)(#54001-55141)
| 01***30 | Bolt,(Not Used When Towing Winch) | 1 |
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 2 |
| 01***70 | Bolt,(For 75a Alternator) | 3 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Hydraulic Piping (Valve And Mounting Parts)(#55142-)
| 01***30 | Bolt,(Not Used When Towing Winch) | 1 |
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 2 |
| 01***50 | Bolt,(Europe Spec.) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Hydraulic Pump (Brake Oil Line And Delivery Line)
| 01***40 | Screw, Hex Socket | 2 |
| 01***50 | Capscrew | 2 |
| 01***40 | Screw | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Hydraulic Pump (Hydraulic Pump Line Mounting)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 8 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Hydraulic Pump (Hydraulic Pump Mounting)
| 01***45 | Bolt,(For 60ton Dump Body) | 4 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 4 |
| 07***30 | O-Ring,Housing | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Hydraulic Pump (Steering Pump And Switch Pump Line)
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***60 | Bolt,(F4320-52a0 -5- ) | 6 |
| 01***80 | Bolt,(With Corrosion Resistor) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Hydraulic Pump (Suction Line Piping And Pump Line Mounting)
| 07***60 | O-Ring,(F4350-59a0 -6 ) | 1 |
| 07***75 | O-Ring,Cylinder Head | 1 |
| 07***23 | Hose | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Hydraulic Tank (Emergency Steering Line Piping)
| 01***35 | Bolt,(F4320-52a0 -5 ) | 4 |
| 01***30 | Bolt, Mounting - Front Hand Rails | 4 |
| 01***32 | Washer, (Without Emergency Steering) | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Hydraulic Tank (Hydraulic Tank) (Tunnel Spec.)
| 01***35 | Bolt,(With Rops) | 2 |
| 01***40 | Bolt,(For Slag Handling) (For Usa) | 4 |
| 01***45 | Bolt,(For 60ton Dump Body) | 3 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Hydraulic Tank (P.P.C Valve And Brake Valve Drain Line)
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 3 |
| 01***50 | Bolt,(See Fig.A4010-C3w6) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Hydraulic Tank (Steering And Suction And Drain Line)
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 4 |
| 01***30 | Bolt - Lower Oil Cooler Outlet Tubemounting | 2 |
| 01***40 | Bolt,(For Operator'S Cab) | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Hydraulic Tank (Under Guard) (Tunnel Spec.)
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 4 |
| 42***50 | Guard | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Loader Control Valve (Control Valve Mounting Parts) (With 3-Spoolvalve)
| 01***70 | Bolt,(With Wear Guard) | 4 |
| 01***80 | Screw | 2 |
| 01***05 | Screw | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Loader Control Valve (P.P.C. Valve Line Connecting Parts) (With 3-Spool Valve)
| 07***34 | O-Ring,(For Without Brake Assistor) | 4 |
| 07***08 | Plug,See Fig. K4010-63a0 | 4 |
| 42***50 | Elbow | 3 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Steering Hydraulic Line (Steering Cylinder Line Mounting)
| 01***50 | Bolt,(See Fig.A4010-C3w6) | 4 |
| 01***09 | Nut,(For Japan) | 8 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Steering Hydraulic Line (Steering Linkage)
| 01***40 | Capscrew | 4 |
| 01***70 | Bolt | 1 |
| 01***13 | Nut,(For Adjustable Rod) | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Steering Hydraulic Line (Steering Valve Line Mounting)
| 01***45 | Bolt, Bracket Mounting | 2 |
| 01***09 | Nut,(For Japan) | 6 |
| 01***32 | Washer,(With Auto Emergency Steering) | 6 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Steering Hydraulic Line (Switch Pump To Cut-Off Valve Line)
| 01***90 | Capscrew | 1 |
| 01***05 | Capscrew | 1 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Steering Valve (Steering Demand Valve Inner Parts)
| 07***08 | Plug,(Without Lock-Up), Plug | 1 |
| 42***70 | O-Ring | 2 |
| 42***80 | Spring | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Steering Valve (Steering Demand Valve Line Piping)
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 01***35 | Bolt, Mount Bracket To Floor | 8 |
| 01***40 | Bolt,(Shim 3-Piece) | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Hydraulic System : Steering Valve (Steering Demand Valve Mounting)
| 01***05 | Capscrew | 3 |
| 01***12 | Nut | 1 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 3 |
Main/Revolving Frame And Related Parts
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Main/Revolving Frame And Related Parts : Front Frame (Tunnel Spec.)
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Main/Revolving Frame And Related Parts : Hinge Pin
| 01***30 | Bolt, Tank Mounting | 1 |
| 01***95 | Screw | 4 |
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 10 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Main/Revolving Frame And Related Parts : Lock And Cover (Rear Frame Under Guard) (With 3-Spool Valve? Tunnel Spec.)
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 8 |
| 01***20 | Bolt - Mount Risers To Cab Floor | 8 |
| 42***10 | Under Guard Ass'Y | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Main/Revolving Frame And Related Parts : Lock And Cover (With 3-Spool Control Valve)
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 8 |
| 01***35 | Bolt,R.H. (For Add. Air Compressor) | 4 |
| 01***32 | Washer | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Main/Revolving Frame And Related Parts : Lock And Cover (With 3-Spool Valve? Tunnel Spec.)
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 8 |
| 01***35 | Bolt,R.H. (For Add. Air Compressor) | 4 |
| 01***32 | Washer | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Main/Revolving Frame And Related Parts : Rear Axle Support
| 01***65 | Capscrew | 16 |
| 01***90 | Screw | 4 |
| 01***35 | Bolt,R.H. (For Add. Air Compressor) | 6 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Main/Revolving Frame And Related Parts : Rear Frame (Shaft Guard And Transmission Mounting)
| 01***40 | Bolt,(For Slag Handling) (For Usa) | 2 |
| 01***80 | Screw | 4 |
| 01***16 | Nut - M20 | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Main/Revolving Frame And Related Parts : Rear Frame (Tunnel Spec.)
| 01***18 | Boss, Rear Frame | 1 |
| 01***25 | Seat (Welded) | 2 |
| 01***16 | Seat (Welded) | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Main/Revolving Frame And Related Parts : Remote Grease (Fitting And Plug)
| 07***00 | Fitting, Grease - Upper Hinge Pin | 5 |
| 07***08 | Plug,(D65ex?Px) | 6 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Main/Revolving Frame And Related Parts : Remote Grease (Rear Axle Support)
| 01***16 | Bolt - Starting Motor Ground Cable | 4 |
| 04***10 | Clip - Fuel Sensor Harness | 10 |
| 42***40 | Elbow,(With Auto Grease System) | 3 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Main/Revolving Frame And Related Parts : Remote Grease (Steering Cylinder)
| 01***16 | Bolt - Starting Motor Ground Cable | 5 |
| 04***10 | Clip - Fuel Sensor Harness | 6 |
| 42***40 | Elbow,(With Auto Grease System) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Main/Revolving Frame And Related Parts : Remote Grease (Work Equipment)
| 01***16 | Bolt - Starting Motor Ground Cable | 5 |
| 04***10 | Clip - Fuel Sensor Harness | 5 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Main/Revolving Frame And Related Parts : Steering Cylinder (Hydraulic Steering Cylinder Line)(#53001-55000)
| 07***34 | O-Ring,(For 2-Actuater Attachment) | 2 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 2 |
| 07***75 | Fitting,Grease (Without Lub. Piping) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Main/Revolving Frame And Related Parts : Steering Cylinder (Hydraulic Steering Cylinder Line)(#55001-)
| 07***05 | Hose, Lift Cyl Bottom Tube To Valve | 4 |
| (7***0) | Cylinder Group,R.H | 1 |
| (7***0) | Cylinder Group,L.H | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Main/Revolving Frame And Related Parts : Steering Cylinder (Mounting Pin)
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 07***08 | Plug,(Without Oil Pressure Switch) | 2 |
| 17***70 | Washer (Isolator Mounting) | 4 |
Marks And Plates
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Marks And Plates : Marks And Plates (Tunnel Spec.) (Except Japan)(#54001-)
| 09***83 | Plate, Safety, Keep A Safe Distance | 2 |
| 09***83 | Plate? Safety,Keep A Safe Distance | 2 |
| 09***01 | Plate? Mark,Keep A Safe Distance | 4 |
Operator'S Compartment And Control System
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Accelerator Pedal
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 2 |
| 01***70 | Screw | 1 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Accelerator Pedal And Linkage
| 01***20 | Bolt,See Fig. K4010-11a0 | 3 |
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 01***20 | Bolt - Mount Risers To Cab Floor | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Air Conditioner And Heater Cover (Console Box Related Parts) (Tunnel Spec.)
| 09***12 | Cap,(With Auto Emergency Steering) | 1 |
| 42***30 | Finisher | 1 |
| 42***30 | Gasket | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Air Conditioner And Heater Cover (L.H. Console Box)
| 01***12 | Bolt,(See Fig. K0210-16a0) | 4 |
| 01***20 | Bolt - Mount Risers To Cab Floor | 3 |
| 01***08 | Washer,(For Joy Stick Steering) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Air Conditioner And Heater Cover (L.H. Console Box) (Tunnel Spec.? Ceramic Muffler)
| 01***12 | Bolt,(See Fig. K0210-16a0) | 4 |
| 01***20 | Bolt - Mount Risers To Cab Floor | 3 |
| 01***08 | Washer,(For Joy Stick Steering) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Air Conditioner And Heater Cover (Rear Console Box)
| 01***16 | Screw, Sems | 2 |
| 01***16 | Bolt, Mounting Transmission Control Switch | 5 |
| 01***12 | Bolt,(With Speedometer) | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Brake Control (Accumulator To Brake Valve Piping)
| 01***16 | Bolt - Starting Motor Ground Cable | 6 |
| 01***09 | Nut,(For Japan) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Brake Control (Brake Valve To Hydraulic Tank Piping)
| 01***16 | Bolt - Starting Motor Ground Cable | 4 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 2 |
| 04***10 | Clip,(See Fig.0311a Or 0321) | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Brake Control (Brake Valve To Slack Adjuster)
| 01***16 | Bolt - Starting Motor Ground Cable | 7 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 3 |
| 01***35 | Bolt, Mount Bracket To Floor | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Brake Control (Single Brake Valve)
| 01***20 | Screw | 1 |
| 01***25 | Bolt,See Fig. K4010-65a0 | 4 |
| 01***40 | Bolt,See Fig. K4010-64a0 | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Brake Control (Tandem Brake Valve)
| 01***20 | Screw | 1 |
| 01***25 | Bolt,See Fig. K4010-65a0 | 4 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 3 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Brake Piping (Front Brake Line)
| 01***16 | Bolt - Starting Motor Ground Cable | 6 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 4 |
| 01***35 | Bolt, Mount Bracket To Floor | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Brake Piping (Rear Brake Line)
| 01***16 | Bolt - Starting Motor Ground Cable | 7 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 8 |
| 01***25 | Bolt, Mount Engine Oil Drain To Fuel Tank | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Brake Piping (Slack Adjuster)
| 07***08 | Plug (Kit) | 2 |
| 07***08 | Plug,(Without Lock-Up), Plug | 2 |
| 42***01 | Adjuster Assembly - Wheel Brake Slack | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Bucket Positioner
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 2 |
| 01***35 | Bolt,R.H. (For Add. Air Compressor) | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Compartment (With Rops Canopy) (Tunnel Spec.)
| 01***16 | Bolt, Mounting Transmission Control Switch | 4 |
| 01***20 | Bolt - Mount Risers To Cab Floor | 4 |
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 3 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Floor (Floor Frame)
| 01***12 | Screw,Sems | 1 |
| 01***16 | Bolt, Mounting Transmission Control Switch | 10 |
| 08***11 | Spring Clip | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Floor (P.P.C. Valve Line) (With 3-Spool Valve? Tunnel Spec.)
| 01***20 | Bolt,(Forwarded Individually Parts) | 6 |
| 01***35 | Bolt, Mount Bracket To Floor | 6 |
| 07***18 | O-Ring, Divider Valve Mounting | 6 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Floor (R.H. Console Box) (With 3-Spool Valve? Tunnel Spec.)
| 01***16 | Screw,(For Joy Stick Steering) | 5 |
| 01***16 | Bolt, Mounting Transmission Control Switch | 2 |
| 01***35 | Bolt, Mount Bracket To Floor | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Floor Harness (Relay And Fuse) (Tunnel Spec.)
| 01***12 | Screw,(For Side Lamp) (Not Shown) | 2 |
| 01***16 | Screw, Mount Parking Lights | 4 |
| 01***10 | Bolt - Relay And Flasher Mounting | 5 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Floor Harness (Sub Monitor And Mounting Parts)
| 01***25 | Screw | 4 |
| 01***08 | Washer,(For Mounting First Aid Kit) | 4 |
| 42***70 | Nut | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Floor Harness(#54001-)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***10 | Bolt - Relay And Flasher Mounting | 6 |
| 01***25 | Bolt - Relay Mounting | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Floor Support
| 01***50 | Bolt,(For Large Size Tire) | 20 |
| 01***65 | Bolt,(Without Rops) | 8 |
| 01***24 | Nut | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Gauge And Sensor (Main Monitor)
| 01***12 | Screw,(With Articulate Indicator) | 8 |
| 01***19 | Washer,Spring (With Extinguisher) (D31p) | 8 |
| (7***0) | Monitor Ass'Y,Main | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Head Guard (Electrical System) (Tunnel Spec.)
| 01***20 | Bolt - Mount Risers To Cab Floor | 2 |
| 42***20 | Lens | 1 |
| 42***30 | Bulb? 70w,24v 70w | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Head Guard (Tunnel Spec.) (Except Japan)(#54001-)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 6 |
| 01***65 | Bolt,(Without Rops Guard? Canopy) | 6 |
| 01***05 | Capscrew | 6 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Loader Control (Front Attachment Control Linkage) (With 3-Spool Valve)
| 01***03 | Nut, L. H. Thread | 1 |
| 01***05 | Nut,(For Air Conditioner Less), Nut | 1 |
| 01***06 | Nut, (Service Parts) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Loader Control (Work Equipment Control Lever)(With 3-Spool Valve)(#54001-)
| 01***16 | Screw,(For Joy Stick Steering) | 4 |
| 01***20 | Screw | 4 |
| 01***30 | Screw, Mounting | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Loader Control (Work Equipment Control Linkage) (With 3-Spool Valve)
| 01***03 | Nut, L. H. Thread | 2 |
| 01***05 | Nut,(For Air Conditioner Less), Nut | 2 |
| 01***06 | Nut, (Service Parts) | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Loader Control (Work Equipment Lock Lever)
| 01***20 | Bolt - Mount Risers To Cab Floor | 2 |
| 04***20 | Pin, Spring Retainer | 2 |
| 09***00 | Knob,Lock Lever | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Main Monitor (Inner Parts)
| 78***10 | Bulb - 1.4 Watt | 9 |
| 78***00 | Monitor Ass'Y | 1 |
| 78***00 | Panel | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Maintenance Monitor (Inner Parts)
| 01***10 | Washer,(Except Japan) | 12 |
| 01***05 | Washer,(Except Japan) | 12 |
| 08***03 | Bulb? 3w,Turn Signal Lamp | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Marks And Plates (Cab Inside) (Tunnel Spec.) (Except Japan)(#54001-)
| 42***10 | Plate Kit | 1 |
| 42***10 | Plate? Operating,(For Both Side Dump Bucket) | 1 |
| 78***63 | Plate Kit, Monitor Panel | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Operator'S Seat (Vinyl Leather)
| 01***20 | Screw | 4 |
| 01***06 | Nut | 4 |
| 41***11 | Seat Ass'Y | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Seat Belt(#53001-55000)
| 02***19 | Bolt,Tether | 2 |
| 09***01 | Bolt,(For Shipping) | 4 |
| 09***02 | Washer,(For Shipping) | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Seat Belt(#55001-)
| 02***19 | Bolt,Tether | 2 |
| 17***01 | Belt? Lap,Lap | 1 |
| 17***21 | Belt? Tether,Tether | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Steering Wheel And Column (Cover And Bracket)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 4 |
| 01***50 | Screw | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Steering Wheel And Column (Dashboard)
| 01***30 | Bolt, Mounting - Front Hand Rails | 8 |
| 01***08 | Washer,(For Joy Stick Steering) | 5 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Steering Wheel And Column (Inner Parts)
| 01***40 | Screw | 1 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 1 |
| 41***10 | Grommet (1)/(3) | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Steering Wheel And Column (Steering Gear)
| 01***25 | Bolt | 8 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 1 |
| 01***13 | Nut, Regular Hexagon (M22-1.25) | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Steering Wheel And Column (Wheel And Column)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***20 | Screw | 2 |
| 01***20 | Capscrew | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Operator'S Compartment And Control System : Transmission Control Switch
| 01***08 | Screw, Mount Damper To Shaft | 2 |
| 01***12 | Screw | 2 |
| 01***08 | Screw, Terminal | 3 |
Sa6d125e-2c-Ta Engine S/N 85399-Up
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : After Cooler Water Piping
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Air Cleaner
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Bolt,(With Body Positioner) | 3 |
| 01***55 | Bolt,(See Service News) | 3 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Air Intake Manifold And After Cooler
| 01***35 | Bolt,(F4320-52a0 -5 ) | 3 |
| 01***50 | Bolt,(Spark Arrester Spec.) | 17 |
| 01***75 | Bolt (M10-1.50x75) | 3 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Air Vent
| 07***12 | Gasket,(Without Air Compressor Type) (K2) | 12 |
| 07***10 | Screw, Banjo Connector (M10-1.25x20) | 6 |
| 61***60 | Tube,Air Vent | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Alternator (50a) (Inner Parts)
| 60***50 | Alternator A. (60a) | 1 |
| KD***70 | Bushing,Insulate | 1 |
| KD***40 | Bushing,Insulate | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Alternator Mounting (50a)
| 01***60 | Bolt,(F4320-52a0 -5- ) | 4 |
| 01***65 | Bolt - Return Line And Suction Linehose Clamps | 2 |
| 01***55 | Bolt - Mount Cage To Transmission Case | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Camfollower Cover
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Camshaft
| 01***22 | Capscrew | 2 |
| 04***25 | Key, Plain Woodruff | 1 |
| 04***12 | Ring,Snap (For Ripper) | 12 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Cooling Fan
| 01***30 | Bolt,(With Body Positioner) | 12 |
| 60***50 | Fan, Cooling | 1 |
| 61***30 | Holding Fixture | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Corrosion Resistor
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 02***25 | Bolt,(Cold Weather Spec.) | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Crank Pulley
| 01***30 | Screw | 1 |
| 01***35 | Screw | 5 |
| 04***28 | Pin, Dowel - Transmission Case, Pin-Dowel | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Crankshaft
| 61***10 | Bearing, Main (Standard) | 7 |
| 61***50 | Bearing, Thrust Assembly (Standard) | 1 |
| 61***10 | Bearing, Main (1.00mm Undersize) | 7 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Cylinder Block
| 01***12 | Bolt,(Without Air Compressor Type) | 2 |
| 01***20 | Bolt,(For Shipping) | 1 |
| 01***16 | Bolt, Mount Solenoid Valve | 6 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Cylinder Block Gasket Kit
| 07***20 | O-Ring,Relief Valve | 1 |
| 07***30 | Ring, Seal - Between Sections | 1 |
| 07***25 | O-Ring,Lubrication Valve | 10 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Cylinder Block Mounting
| 01***20 | Bolt,(For Mono Lever Steering) | 6 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***40 | Bolt (Op) | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Cylinder Head
| 01***20 | Bolt (M10-1.75x120) | 6 |
| 04***20 | Pin,Dowel (Welded) | 2 |
| 07***08 | Plug,(Without Lock-Up), Plug | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Cylinder Head Gasket Kit
| 07***21 | O-Ring,Water Piping | 1 |
| 07***65 | O-Ring,Cylinder Block | 6 |
| 07***30 | O-Ring (K1) | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Damper
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 6 |
| 61***00 | Damper Assembly | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Engine Mounting
| 01***50 | Bolt,(Spark Arrester Spec.) | 2 |
| 01***00 | Bolt,(For Front Brake Release) | 4 |
| 01***05 | Capscrew | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Engine Stop Motor
| 01***22 | Screw | 3 |
| 01***16 | Bolt - Seat And Tether Belt Mounting | 2 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Exhaust Manifold
| 01***80 | Screw | 2 |
| 01***00 | Screw | 15 |
| 01***05 | Bolt | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Fan Drive
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***40 | Bolt (Op) | 2 |
| 01***95 | Capscrew | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Fan Pulley
| 01***30 | Bolt,(With Body Positioner) | 6 |
| 04***69 | V-Belt Set,Fan | 1 |
| 61***20 | Pulley?Non Hardening | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Flywheel
| 01***45 | Screw | 6 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 6 |
| 04***16 | Pin,(Dowel) | 6 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Flywheel Housing (With Engine Revolution Sensor)
| 01***50 | Bolt, Radiator To Frame | 6 |
| 01***60 | Capscrew | 4 |
| 01***45 | Bolt, Mount Divider Valve | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Front Cover
| 09***50 | Liquid Gasket, Lg-7, 150g | 0 |
| 61***30 | Seal? Front (K2) | 1 |
| 61***41 | Cover,Front | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Front Cover Mounting Parts
| 01***65 | Bolt - Return Line And Suction Linehose Clamps | 8 |
| 01***70 | Bolt - Bracket And Oil Inlet Tubemounting | 4 |
| 01***75 | Bolt (M10-1.50x75) | 6 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Fuel Filter
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***65 | Bolt | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Fuel Injection Pump (Coupling) (Inner Parts)
| DK***00 | Bolt | 2 |
| DK***20 | Coupling Assembly | 1 |
| DK***00 | Bolt | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Fuel Injection Pump (Feed Pump) (Inner Parts)
| DK***20 | Bolt, Joint | 1 |
| DK***00 | Valve,Check | 2 |
| DK***30 | Feed Pump Assembly | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Fuel Injection Pump (Governor) (1/2) (Inner Parts)
| DK***00 | Gasket | 1 |
| DK***00 | Screw | 1 |
| DK***00 | Shim? 2.00mm,(High Altitude Spec.) | 0 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Fuel Injection Pump (Governor) (2/2) (Inner Parts)
| DK***80 | Shim? 0.5mm | 0 |
| DK***00 | Washer,Spring | 1 |
| DK***80 | Bolt,Eye | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Fuel Injection Pump (Pump) (1/2) (Inner Parts)
| 61***42 | Injection Pump Ass'Y | 1 |
| DK***30 | Bearing,Roller | 2 |
| DK***00 | Bearing, Center | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Fuel Injection Pump (Pump) (2/2) (Inner Parts)
| DK***00 | Shim? 0.875mm | 0 |
| DK***00 | Shim? 0.500mm | 0 |
| DK***00 | Shim? 1.575mm | 0 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Fuel Injection Pump Drive
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***14 | Nut (Itl) | 1 |
| 01***60 | Washer,(Without Rops Guard? Canopy) | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Fuel Injection Pump Mounting
| 01***90 | Bolt,(For No?1 And No?3 Housing) | 4 |
| 01***16 | Washer,(With Water Separator) | 4 |
| 07***10 | Connector, Grease Fitting | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Fuel Injection Pump Piping
| 01***30 | Screw | 1 |
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***45 | Bolt,(With Water Separator Type) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Fuel Return
| 07***16 | Tube,Spill (S6d110-1a? S6d110-1b) | 1 |
| 07***85 | Clip | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Head Cover
| 01***16 | Washer,Radio Controlled Slag Handling | 24 |
| 61***11 | Cover,Head? No.2?3?4?5?6 | 6 |
| 61***10 | Gasket,Cylinder Head Cover | 6 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Heater Switch
| 01***10 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***10 | Washer,(For 35a Alternator) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Idler Gear
| 01***60 | Capscrew | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 61***60 | Pin, Dowel | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Injection Nozzle
| 01***45 | Bolt, Mount Divider Valve | 12 |
| 07***65 | O-Ring,Cylinder Block | 6 |
| 07***12 | Gasket,(Without Air Compressor Type) (K2) | 12 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Muffler (1/2) (Ceramic Type)
| 01***55 | Screw | 6 |
| 01***25 | Bolt | 4 |
| 01***20 | Bolt | 24 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Muffler (2/2) (Ceramic Type)
| 01***16 | Bolt | 5 |
| 01***25 | Bolt,Joint | 12 |
| 01***30 | Bolt | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Name Plate
| 61***20 | Plate? Name,Engine (Limited Supply) | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Nozzle Holder (Inner Parts)
| 07***12 | Gasket,Mechanical Pump Piping | 2 |
| 61***52 | Bolt, Joint | 1 |
| 61***10 | Fuel Injector Assembly | 6 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Oil Adapter
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***30 | Bolt,(With Body Positioner) | 3 |
| 01***50 | Bolt,(Spark Arrester Spec.) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Oil Cooler
| 01***25 | Bolt - Relay Mounting | 2 |
| 07***42 | O-Ring,(See Fig.A3310) | 1 |
| 61***25 | Cover | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Oil Cooler Mounting Parts
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 12 |
| 01***65 | Bolt - Return Line And Suction Linehose Clamps | 2 |
| 01***80 | Bolt,(With Corrosion Resistor) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Oil Filter
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 07***35 | O-Ring,Transmission Valve Mount | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Oil Level Gauge
| 61***20 | Collar | 1 |
| 61***30 | Nut,(For Shipping) | 1 |
| 61***51 | Gauge, Oil Level | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Oil Pan And Suction Tube
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 30 |
| 01***30 | Bolt,(With Body Positioner) | 7 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Oil Pump
| 01***25 | Bolt,(Rear Attachment Less) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Piston
| 02***13 | Pin, Dowel | 2 |
| 04***18 | Ring, Snap | 12 |
| 61***30 | Bushing,(Service Part) | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Rocker Arm
| 01***75 | Screw | 40 |
| 01***08 | Nut,R.H. Thread | 12 |
| 01***32 | Washer,(With Auto Emergency Steering) | 40 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Safety Guard (For Fuel Injection Pump Drive)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 61***50 | Cover, Safety | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Starting Motor (7.5kw) (Inner Parts)
| 60***11 | Starting Motor Ass'Y,(7.5kw) | 1 |
| KD***60 | Shift Lever Assembly | 1 |
| KD***40 | Spring,Spring | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Starting Motor Mounting (7.5kw)
| 01***40 | Bolt (Kit) | 3 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 08***19 | Band,(Without Air Conditioner) | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Tachometer Drive
| 61***31 | Gear,(With Air Compressor Type) | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Thermostat Housing
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***65 | Screw | 4 |
| 02***04 | Plug,(For Shipping) | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Turbocharger (Inner Parts)
| 61***10 | Turbocharger Ass'Y | 1 |
| SP***49 | V-Clamp | 1 |
| SP***62 | Housing, Compressor | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Turbocharger Oil Piping
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***30 | Bolt - M8 X 30lg | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Water Drain Valve
| 07***75 | Hose | 1 |
| 08***19 | Band,(Without Air Conditioner) | 1 |
| 61***12 | Valve,Water Drain | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Water Pump
| 01***16 | Bolt - Seat And Tether Belt Mounting | 6 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Water Pump Gasket Kit
| 02***37 | O-Ring,(For Pc750?1800) (A5010) | 1 |
| 07***15 | O-Ring,(F4320-57a0 -11 ) | 1 |
| 61***90 | Gasket (K2?K6) | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Sa6d125e-2c-Ta Engine S/N 85399-Up : Water Temperature Sensor
| 07***12 | Washer, Gasket,(Without Thermo Sensor) (K1) | 1 |
| 07***15 | Plug,(Used When Without Heater) | 1 |
| 60***61 | Sensor,Water Temperature | 1 |
Service Kit And Component Parts
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Service Kit And Component Parts : 3-Spool Control Valve (1/3)
| 01***25 | Bolt,(For Shipping) | 2 |
| 01***60 | Capscrew | 2 |
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 12 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Service Kit And Component Parts : 3-Spool Control Valve (2/3)
| 07***16 | O-Ring,Suction And Relief Valve | 1 |
| 07***32 | O-Ring,(See Fig. H0312-01a0-4) | 1 |
| 07***32 | Ring, Back-Up | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Service Kit And Component Parts : 3-Spool Control Valve (3/3)
| 07***23 | O-Ring,(For 2nd Travel Speed) (Op) | 3 |
| 07***34 | O-Ring,(For Without Brake Assistor) | 2 |
| 07***08 | Plug,(Without Auto Priming System) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Service Kit And Component Parts : Accumulator (Brake Control) (Inner Parts)
| 07***00 | O-Ring,(F4350-65a1 -5 ) | 1 |
| 07***90 | O-Ring,Grease Pump Strap | 1 |
| 07***90 | Ring,Back-Up (Kit) | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Service Kit And Component Parts : Accumulator (E.C.S.S. Control) (Inner Parts)(#54001-55027)
| 01***12 | Screw,Sems | 2 |
| 07***00 | O-Ring,(Y1620-11a0a-11) | 1 |
| 07***90 | O-Ring,Grease Pump Strap | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Service Kit And Component Parts : Accumulator (E.C.S.S. Control) (Inner Parts)(#55028-)
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Service Kit And Component Parts : Both Side Dump Cylinder
| 01***75 | Bolt | 4 |
| 01***68 | Washer,Spring (Kit) | 4 |
| 07***25 | O-Ring,Cylinder Head | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Service Kit And Component Parts : Check Valve
| 07***35 | O-Ring, At Lower Oil Cooler Inlet Port | 1 |
| 70***11 | Body | 1 |
| 70***21 | Poppet | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Service Kit And Component Parts : Cut-Off Valve
| 01***16 | Screw | 4 |
| 01***25 | Screw | 4 |
| 07***07 | O-Ring - (K10) | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Service Kit And Component Parts : Hydraulic Pump (Emergency Steering)
| 04***18 | Ring, Retaining | 1 |
| 70***10 | Pump Assembly, Ground Driven Steering (Sam2-50) | 1 |
| 70***50 | Bearing, Needle | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Service Kit And Component Parts : Hydraulic Pump (Steering And Switch) (1/2)
| 04***20 | Ring, Retaining | 1 |
| 70***40 | Pump Ass'Y,(Sar71) | 1 |
| 70***11 | Seal, Oil | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Service Kit And Component Parts : Hydraulic Pump (Steering And Switch) (2/2)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***32 | Washer, (Without Emergency Steering) | 4 |
| 07***55 | O-Ring,Front Yoke | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Service Kit And Component Parts : Hydraulic Pump (Transmission)
| 01***45 | Washer, Spring | 4 |
| 04***28 | Pin, Dowel - Transmission Case, Pin-Dowel | 4 |
| 04***20 | Ring, Retaining | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Service Kit And Component Parts : Hydraulic Pump (Work Equipment And P.P.C.) (1/2)
| 04***20 | Ring, Snap | 1 |
| 70***11 | Seal,Seal | 1 |
| 70***70 | Spacer, Oil Seal | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Service Kit And Component Parts : Hydraulic Pump (Work Equipment And P.P.C.) (2/2)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***32 | Washer, (Without Emergency Steering) | 4 |
| 07***32 | O-Ring (Kit) | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Service Kit And Component Parts : Kit (Transmission)
| 07***10 | O-Ring,(F4350-62a0 -5 ), O-Ring; Komatsu S/N 22***01 & Abv - Was 07000-02010, O-Ring; Was 07000-02010 | 1 |
| 07***12 | O-Ring, Between Valve And Pump | 3 |
| 07***14 | O-Ring,(F4350-63a1a-2 ) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Service Kit And Component Parts : Kit (Transmission) (For Emergency Steering)
| 07***10 | O-Ring,(F4350-62a0 -5 ), O-Ring; Komatsu S/N 22***01 & Abv - Was 07000-02010, O-Ring; Was 07000-02010 | 1 |
| 07***12 | O-Ring, Between Valve And Pump | 3 |
| 07***14 | O-Ring,(F4350-63a1a-2 ) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Service Kit And Component Parts : Lift Cylinder(#53100-)
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Service Kit And Component Parts : Ppc Valve : Unit_02_of_02
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Service Kit And Component Parts : Ppc Valve : Unit_01_of_02
| 07***20 | O-Ring,Relief Valve | 4 |
| 70***05 | Valve Assembly, P.P.C. - Two-Spool | 1 |
| 70***40 | Shim - 0.012 In. (0.30 mm) | 8 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Service Kit And Component Parts : Steering Cylinder(#53100-55000)
| 07***00 | O-Ring,(F4350-65a1 -5 ) | 1 |
| 07***95 | O-Ring,(Y1620-11a0a-12) | 1 |
| 07***08 | Plug,(For W/O. Corrosion Resistor) | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Service Kit And Component Parts : Steering Cylinder(#55001-)
| 07***00 | O-Ring,(F4350-65a1 -5 ) | 1 |
| 07***95 | O-Ring,(Y1620-11a0a-12) | 1 |
| 07***34 | O-Ring,(For 2-Actuater Attachment) | 1 |
Suspension And Wheel Related Parts
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Suspension And Wheel Related Parts : Rim (23.5-25 Tubeless Tire)(#54001-)
| 42***00 | Rim Ass'Y | 4 |
| 42***10 | Base,Rim | 4 |
| 42***30 | Band, Bead Seat | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Suspension And Wheel Related Parts : Tire (23.5-25-20pr-L3 Tubeless Tire)
| 09***20 | Valve Ass'Y,Tire | 4 |
| 09***30 | Stem, Valve | 1 |
| 09***41 | Core, Valve | 1 |
Transmission
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Drive Shaft (Center)
| 01***60 | Bolt, Upper Shaft Mounting | 8 |
| 41***30 | Lubrication Nipple | 3 |
| 42***20 | Spider Assembly | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Drive Shaft (Front)
| 01***75 | Capscrew (4) (Qty.3 (5)) | 4 |
| 01***05 | Bolt, Yoke Mounting | 1 |
| 01***60 | Bolt, Upper Shaft Mounting | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Drive Shaft (Rear)
| 01***60 | Bolt, Upper Shaft Mounting | 8 |
| 42***90 | Screw | 8 |
| 42***20 | Spider Ass'Y | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Front Axle (Front Axle Housing)
| 01***50 | Screw | 17 |
| 01***55 | Screw | 3 |
| 01***45 | Bolt, Mount Retainer | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Front Axle (Front Differential)
| 01***30 | Bolt,(For Center Guard) | 2 |
| 01***55 | Screw | 7 |
| 01***45 | Bolt,(For Slag Handling) | 20 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Front Axle (Front Final Drive)
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 12 |
| 01***50 | Screw | 16 |
| 01***20 | Screw | 24 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Front Axle (Front Wheel Brake)
| 01***40 | Bolt,(Not Used With Cab) | 28 |
| 01***80 | Bolt,(B) | 32 |
| 01***70 | Stud, Wheel And Tire Mounting | 50 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Front Axle And Axle Mounting Parts
| 01***24 | Nut,Bearing | 8 |
| 01***80 | Washer,(For Shipping) | 16 |
| 42***40 | Screw | 8 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Front Axle Wheel Mounting Parts
| 01***60 | Flat Washer - M20 (Hardened) | 50 |
| 42***90 | Nut, Lug - Wheel Mounting | 50 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Rear Axle (Rear Axle Housing)
| 01***45 | Bolt, Mount Center Hinge Retainer (Lower) | 12 |
| 01***50 | Screw | 22 |
| 01***40 | Screw | 6 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Rear Axle (Rear Differential)
| 01***30 | Bolt,(For Center Guard) | 2 |
| 01***55 | Screw | 7 |
| 01***45 | Bolt,(For Slag Handling) | 20 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Rear Axle (Rear Final Drive)
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 12 |
| 01***50 | Screw | 16 |
| 01***20 | Screw | 24 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Rear Axle (Rear Wheel Brake)
| 01***40 | Bolt,(Not Used With Cab) | 28 |
| 01***80 | Bolt,(B) | 32 |
| 01***70 | Stud, Wheel And Tire Mounting | 50 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Rear Axle And Wheel Mounting Parts
| 01***60 | Flat Washer - M20 (Hardened) | 50 |
| 42***90 | Nut, Lug - Wheel Mounting | 50 |
| (4***2) | Axle Ass'Y,Rear (Limited Slip Diff.) | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Torque Converter
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 18 |
| 01***30 | Bolt,(With Body Positioner) | 32 |
| 01***70 | Bolt - Bracket And Oil Inlet Tubemounting | 12 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Torque Converter And Transmission (Divider Valve)
| 01***25 | Bolt,(Rear Attachment Less) | 2 |
| 01***30 | Screw | 2 |
| 01***70 | Screw | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Torque Converter And Transmission (Emergency Steering Piping)(#54001-)
| 01***85 | Bolt, Divider Valve Mounting | 2 |
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 2 |
| 01***45 | Bolt, Mount Divider Valve | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Torque Converter And Transmission (Mounting Bracket)
| 01***50 | Bolt,(For D60pl) | 8 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 8 |
| (7***0) | Transmission Ass'Y,(For Emergency Steering) | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Torque Converter And Transmission (Mounting Bracket) (Tunnel Spec.)(#54001-)
| 01***50 | Bolt,(For D60pl) | 8 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 8 |
| (7***1) | Transmission Ass'Y,(For Emergency Steering) | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Torque Converter And Transmission (Mounting Parts Transmission)
| 01***40 | Bolt, Mount Retainer | 12 |
| 01***32 | Washer,(With Auto Emergency Steering) | 12 |
| 07***12 | O-Ring, Divider Valve Mounting | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Torque Converter And Transmission (Oil Cooler Hose Piping)
| 07***34 | O-Ring,(For Front Attachment) | 1 |
| 07***17 | Hose Assembly | 1 |
| 07***21 | Hose, To Torque Converter | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Torque Converter And Transmission (Parking Brake Piping)
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 01***55 | Bolt, Mount Dryer To Bracket And Frame | 1 |
| 04***10 | Clamp | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Torque Converter And Transmission (Wiring Harness Transmission)
| 01***16 | Bolt - Starting Motor Ground Cable | 7 |
| 04***10 | Clip,(With Accumulator) | 2 |
| 08***00 | Diode,(With Air Conditioner) | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Torque Converter And Transmission (Wiring Harness Transmission) (Tunnel Spec.)(#54001-)
| 01***16 | Bolt - Starting Motor Ground Cable | 7 |
| 04***10 | Clip,(With Accumulator) | 2 |
| 08***00 | Diode,(With Air Conditioner) | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Torque Converter And Transmission Mounting
| 01***40 | Screw | 2 |
| 01***19 | Nut | 2 |
| 01***60 | Washer,(Without Rops Guard? Canopy) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Transmission (3rd And 4th Clutch) (For Emergency Steering)
| 06***15 | Bearing,Ball | 1 |
| 56***10 | Bearing,Needle | 2 |
| 56***20 | Bearing,Needle | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Transmission (Accessory) (For Emergency Steering)
| 01***30 | Bolt,(Not Used When Towing Winch) | 3 |
| 01***40 | Bolt,For Weight Adjusting Bolt | 3 |
| 01***85 | Bolt, Mount Divider Valve | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Transmission (Control Valve Mounting) (For Emergency Steering)(#54001-)
| 01***85 | Bolt, Divider Valve Mounting | 5 |
| 01***15 | Bolt, Fan Mounting | 2 |
| 01***20 | Capscrew | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Transmission (Forward And 1st Clutch)
| 06***15 | Bearing | 1 |
| 06***15 | Bearing,Roller | 1 |
| 56***20 | Bearing,Needle | 3 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Transmission (Input? 4th And Output Shaft)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 3 |
| 01***30 | Capscrew | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Transmission (P.T.O.)
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 2 |
| 01***14 | Nut,Ring | 1 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Transmission (Parking Brake)
| 01***20 | Bolt,(For Mono Lever Steering) | 3 |
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 12 |
| 01***10 | Bolt,For Weight Adjusting Bolt | 9 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Transmission (Reverse And 2nd Clutch)
| 06***15 | Bearing | 1 |
| 56***20 | Bearing,Needle | 4 |
| 71***20 | Washer, Thrust | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Transmission (Transmission Case)
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Transmission (Transmission Piping) (1/2) (For Emergency Steering)
| 01***45 | Capscrew - M16 | 2 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 2 |
| 01***40 | Bolt,For Weight Adjusting Bolt | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Transmission (Transmission Piping) (2/2) (For Emergency Steering)
| 01***35 | Bolt,(F4320-52a0 -5 ) | 4 |
| 01***60 | Bolt,(F4320-52a0 -5- ) | 2 |
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 3 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Transmission Accumulator Valve (For Emergency Steering)(#54001-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
| 07***35 | O-Ring,(F4350-61a0 -32 ) | 6 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Transmission Attachment (For Emergency Steering)
| 01***50 | Capscrew | 8 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 8 |
| 42***20 | Bracket, Front Trasmission | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Transmission Control Valve (Lower Valve) (For Emergency Steering)(#54001-)
| 01***35 | Bolt,(For Fix Position) | 7 |
| 01***06 | Screw | 1 |
| 01***12 | Screw,(For Side Lamp) (Not Shown) | 16 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Transmission Control Valve (Pilot Filter)(For Emergency Steering)(#54001-)
| 01***35 | Bolt,(F4320-52a0 -5 ) | 2 |
| 01***45 | Bolt,(With Water Separator Type) | 1 |
| 01***70 | Bolt - Bracket And Oil Inlet Tubemounting | 1 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Transmission Control Valve (Upper Valve) (For Emergency Steering)(#54001-)
| 01***25 | Bolt,(Without Auto Priming System) | 14 |
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***22 | Screw | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Transmission Flow Control Valve (For Emergency Steering)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
| 07***30 | Ring, Seal - Between Sections | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Transmission Modulation Valve (For Emergency Steering)(#53001-54000)
| 01***30 | Bolt - M8 X 30lg | 2 |
| 01***35 | Bolt,(For Fix Position) | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Transmission : Transmission Oil Filter (For Emergency Steering)(#53001-54000)
| 07***23 | O-Ring,(F4350-68a0 -13 ) | 1 |
| 07***09 | Plug, Oil Drain | 1 |
| 41***00 | Filter Assembly (See Pg F-058) | 1 |
Work Equipment
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Work Equipment : Both Side Dump Bucket (1/3) (Bucket? 3.0m3)
| 01***25 | Bolt, Pinlock | 2 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 4 |
| 07***85 | Seal,Dust (Kit) | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Work Equipment : Both Side Dump Bucket (2/3) (Hydraulic Piping)
| 01***25 | Bolt, Mount Cover | 2 |
| 01***30 | Bolt - M8 X 30lg | 16 |
| 01***65 | Bolt - Return Line And Suction Linehose Clamps | 12 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Work Equipment : Both Side Dump Bucket (3/3) (Cylinder And Related Parts)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***30 | Bolt - Pin Mounting | 2 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Work Equipment : Dump Cylinder (Piping And Mounting)
| 01***60 | Bolt, Mount Tube To Switch Pump | 4 |
| 01***30 | Bolt,(For Rubber Shoe) | 2 |
| 01***60 | Bolt,(F4320-52a0 -5- ) | 4 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Work Equipment : Lift Arm And Bellcrank (Boom Kick Out)
| 01***16 | Bolt - Starting Motor Ground Cable | 1 |
| 01***20 | Bolt - Mount Risers To Cab Floor | 2 |
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Work Equipment : Lift Arm And Bellcrank (Front Attachment Line) (With 3-Spool Valve)
| 01***25 | Bolt,L.H. (For Add. Air Compressor) | 8 |
| 01***09 | Nut, Lock | 8 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Work Equipment : Lift Arm And Bellcrank (Mounting Parts)
| 01***30 | Bolt,(For Rubber Shoe) | 7 |
| 01***30 | Screw | 2 |
| 01***30 | Bolt - Pin Mounting | 5 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Work Equipment : Lift Arm And Bellcrank (With 3-Spool Valve)
| 01***06 | Seat,(Welded) | 4 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 5 |
| 42***10 | Seal,Dust (Kit) | 8 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Work Equipment : Lift Cylinder (Hydraulic Piping)
| 01***60 | Bolt, Mount Tube To Switch Pump | 16 |
| 01***60 | Bolt,(F4320-52a0 -5- ) | 16 |
| 01***35 | Bolt,R.H. (For Add. Air Compressor) | 2 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Work Equipment : Lift Cylinder (Mounting Parts)
| 01***30 | Bolt,(For Rubber Shoe) | 4 |
| 01***30 | Bolt - Pin Mounting | 4 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 3 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Work Equipment : Segment Edge (For Both Side Dump Bucket)
| 01***60 | Washer (Kit) | 16 |
| 02***00 | Bolt, Side - Corner Teeth Mounting | 16 |
| 02***25 | Nut, 1 In. Nc | 16 |
Komatsu : Wa450-3a-Tw(S/N 53001-Up (For Taiwan Tunnel)) : Work Equipment : Tooth
| 01***60 | Washer,Single Flange (Trimming) | 2 |
| 02***90 | Bolt, Plow - 1 In Nc X 3 9/16 | 25 |
| 02***22 | Nut, 7/8 In. Nc | 2 |
WA450-3A-TW(S/N 53001-UP (FOR TAIWAN TUNNEL)) serial number reference
The PIN plate is located on the front frame, typically on the right-hand side of the articulation joint. To read the prefix, identify the first three characters of the serial number sequence to determine the machine's specific configuration and build range.
| Prefix | Identifies | Notes |
|---|---|---|
| 53001-UP | WA450-3A-TW (Taiwan Tunnel) | Specific configuration for Taiwan Tunnel applications. Utilizes SA6D125E-2C-TA engine series. |
Frequently asked questions
What engine powers this specific WA450-3A-TW model?
This machine is equipped with the Komatsu SA6D125E-2C-TA diesel engine.
What is the approximate operating weight of the loader?
The operating weight for this series is approximately 108,798.2 lb (49,350 kg), though exact figures vary by configuration and attachments.
What model replaced the WA450-3 series?
The WA450-6 is a later generation in the Komatsu wheel loader lineup.
What WA450-3A-TW(S/N 53001-UP (FOR TAIWAN TUNNEL)) owners discuss
What are common electrical issues reported with the transmission and cab controls on this series?
Operators have reported issues with corroded harness connectors and degraded insulation in the wiring harness located between the transmission control box and the cab. Such faults can cause erratic shifting behavior, such as the machine shifting from first to second gear immediately upon applying throttle without returning to first until neutral is engaged.
What engine is used in the WA450-3A-TW (S/N 53001-UP) and what are known performance symptoms?
This specific configuration utilizes the SA6D125E-2C-TA engine. Reported issues for this engine series include hard starting, loss of fuel pressure after sitting (requiring priming), and significant white smoke during startup or under load. In some cases, diesel dilution in the engine oil has been observed.
What hydraulic performance specifications are standard for the WA450-3 series?
The system provides a hydraulic flow of 71.3 GPM (270 L/min) at a pressure of 3,500 psi (241.3 bar), which is designed to facilitate fast lift and dump cycles.
What are the typical maintenance intervals for Komatsu heavy equipment?
Standard preventative maintenance follows a tiered structure with service intervals at 250, 500, 1,000, 2,000, and 4,000 hours. Daily inspections should include checking oil levels, inspecting hydraulic hoses for leaks, and verifying tire or wheel condition.
What should be checked when purchasing a used WA450-3A-TW (S/N 53001-UP)?
Inspect the wiring harness between the transmission control box and the cab for corrosion or insulation damage. Check the engine oil for signs of diesel dilution and verify that the machine maintains fuel pressure without excessive priming. Additionally, check the hydraulic system for any signs of sensor faults or abnormal pressure readings.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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