Komatsubulldozersmall ( - d39)
Komatsu D21A-8E0(S/N 90001-UP)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu D21A-8E0 is a compact crawler tractor designed for utility earthmoving and grading. This machine belongs to the -8 generation series, featuring a 4D94LE-2 engine that delivers approximately 43.3 hp (32.3 kW) at 2450 rpm. It operates within a weight class of roughly 8,179 lb (3,710 kg). The D21A configuration is characterized by its standard width undercarriage and efficient HYDROSHIFT transmission, offering two forward and two reverse gears for precise maneuvering.
The -8E0 series represents a significant evolution in the D21 lineage, integrating advanced fuel-efficient direct-injection technology and improved transmission smoothness. This generation is highly valued in the used market due to its balance of compact dimensions and robust power. For parts sourcing and maintenance, identifying the specific serial range (90001-UP) is critical, as variations in engine emissions packages and hydraulic configurations exist across different regional builds.
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 D21A-8E0(S/N 90001-UP) specifications
Engine
| Engine Model | Komatsu 4D9-94LE-2 |
| Number of Cylinders | 4 |
| Gross Power | 43.3 hp (32.3 kW) @ 2450 rpm |
| Max Torque | 128.4 lb ft (174 Nm) @ 1300 rpm |
| Displacement | 186 cu in (3.1 L) |
Weights
| Operating Weight (D21A-8E0) | 8,179.2 lb (3,710 kg) |
| Operating Weight (D21P-8E0) | 9,040 lb (4,100 kg) |
Dimensions
| Length w/ Blade | 10.67 ft in (3/250 mm) |
| Height to Top of Cab | 5.86 ft in (1785 mm) |
| Ground Clearance | 1.17 ft in (355 mm) |
| Standard Shoe Size | 11.82 in (300 mm) |
| Number of Shoes per Side | 37 |
| Ground Contact Area | 1570 in² (1.02 m²) |
Performance
| Max Speed - Forward | 2.7 mph (4.4 km/h) |
| Max Speed - Reverse | 3.5 mph (5.7 km/h) |
| Ground Pressure | 4.41 psi (30.41 kPa) to 4.5 psi |
| Transmission Type | Komatsu HYDROSHIFT |
Undercarriage
| Track Rollers per Side | 5 |
| Carrier Rollers per Side | 1 |
Service Capacities
| Fuel Capacity | 15.9 gal (60 L) |
| Engine Oil Capacity | 1.8 gal (6.6 L) to 1.8 gal (7 L) |
| Hydraulic Fluid Capacity | 5.6 gal (21 L) to 5.5 gal (21 L) |
| Cooling System Fluid Capacity | 2.7 gal (10 L) to 2.6 gal (10 L) |
| Final Drives Fluid Capacity | 1.6 gal (6 L) to 1.6 gal (6 L) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
D21A-8E0(S/N 90001-UP) fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine Crankcase (w/ filter) | 6.6 L (1.8 gal) to 7 L (1.8 gal) | 10w/30 or 15w/40 E9 Low Saps Engine Oil; SAE 30 or SAE 40 Mono Grade HD also noted for specific applications |
| Cooling System | 10 L (2.7 gal) to 10 L (2.6 gal) | Antifreeze Blue Concentrate or Red OAT 5 Year Antifreeze Coolant |
| Fuel Tank | 60 L (15.9 gal) | |
| Transmission/Powertrain (Hydroshift) | 80w/90 GL4 or GL5 Gear Oils; 85w/140 Axle/Gear Oil; Dexron II or III for Steering Fluid | |
| Bevel Gear/Steering Compartments | 80w/90 EP GL5 Gear Oil | |
| Final Drives (each) | 6 L (1.6 gal) | |
| Hydraulic System/Tank | 21 L (5.6 gal) to 21 L (5.5 gal) | Komatsu HYDO; HLP 3/2, ISO 32, or ISO 46 Hydraulic Oil; HVI 46 for specific applications |
| Grease |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Komatsu D21A-8E0(S/N 90001-UP) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
Servicing the D21A-8E0(S/N 90001-UP) beyond the schedule
Predictive Maintenance & Fluid Analysis
Monitor the 4D94LE-2 engine oil and hydraulic fluid for particulate contamination. Regular analysis of the 5.6 gal (21 L) hydraulic reservoir can prevent pump failure. Check final drive fluid levels in the 1.6 gal (6 L) capacity housings to detect water ingress. Use Komatsu genuine lubricants to maintain strict engineering standards and extend component life.
Corrective & Common Repairs
Address steering difficulties by inspecting the hydraulic control valves and steering clutch assemblies. If track engagement is inconsistent, check for hydraulic pressure drops in the control circuit. For power loss, inspect the HYDROSHIFT transmission damper and planetary gear packs. Ensure all repairs use components matching the specific 90001-UP serial range to maintain factory performance.
Overhaul & Rebuild Points
Major engine overhauls should focus on the 186 cu in (3.1 L) displacement block and fuel injection system. When rebuilding the undercarriage, evaluate all 37 shoes per side and track rollers for excessive wear. Rebuilding the transmission requires specialized tools to service the planetary gear packs and ensure smooth gear transitions between forward and reverse modes.
Seasonal & Environment Servicing
In dusty environments, frequent cleaning of the radiator and air intake is mandatory to prevent overheating. During cold operations, verify the 2.7 gal (10 L) cooling system fluid concentration. Ensure track adjusters are functional to manage ground pressure fluctuations in soft soil. Always clear debris from the undercarriage after use in heavy vegetation or mud to prevent premature roller wear.
D21A-8E0(S/N 90001-UP) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 09637-30163 | Plate? Instruction,Air Cleaner (Single Element) | Air intake service | Check fitment → |
| 113-60-43321 | Cartridge,Hydraulic Oil Filter (D31s) | Hydraulic service | Check fitment → |
| YM119802-55800 | Filter Element | Scheduled service item | Check fitment → |
| YM129150-35152 | Filter Element | Scheduled service item | Check fitment → |
| 07002-03334 | O-Ring, At Transmission Filter | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
D21A-8E0(S/N 90001-UP) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| E10 | Engine controller power malfunction | Faulty ECM power connections, blown fuses, or improper ground wiring | Inspect ECM power connections, fuses, and ground wires |
| E11 | Engine protection—output power reduced | High coolant temperature, low oil pressure, or restricted air filter | Check coolant temperature, oil pressure, and air filter condition |
| CA115 | Engine crankshaft speed sensor failure | Broken sensor, wiring harness damage, or connector corrosion | Replace the speed sensor and verify voltage at the pin connector |
| CA122 | Intake air pressure high voltage | Faulty intake pressure sensor or wiring issues | Verify the intake pressure sensor and associated wiring |
| CA123 | Intake air pressure low voltage | Sensor short circuit or airflow restriction in the system | Check for sensor shorts or physical airflow obstructions |
| CA451 / CA452 | Common rail pressure error | Malfunction in the fuel rail pressure sensor or issues within pump lines | Diagnose the fuel rail pressure sensor and inspect pump lines |
| DW43KA / DW43KB | Travel speed solenoid open/short circuit | Electrical short or open circuit in the travel speed control solenoid | Replace the solenoid valve |
| B@BCNS | Engine coolant overheating | Low coolant level or radiator malfunction | 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.
D21A-8E0(S/N 90001-UP) attachments & work tools
Blades
Standard equipment includes a Semi-U blade for the D21A-8E0 configuration. Aftermarket options include C-frame, cutting edges, and rake attachments.
Rippers
Ripper attachments are available for this class; specific single or multi-shank configurations for the 8E0 series are not documented in provided technical sheets. Ripper shanks and cylinders are listed as compatible components for Komatsu dozer lines.
Winches
No winch class or towing winch options are specified for the D21A-8E0 (S/N 90001-UP) in the available technical documentation.
Drawbars/counterweights
Counterweight and drawbar attachments are listed as available bulldozer components for Komatsu models, but specific dimensions or weights for the 8E0 series are not provided.
Cab/ROPS guarding options
Protective options such as tank guards, window guards, and ROPS bars are available for bulldozer attachments. Specific forestry or waste-specific configurations for this serial range are not detailed.
Hydraulic arrangement notes
The machine utilizes a 4D94LE-2 engine with a hydraulic fluid capacity of 5.6 gal (21 L) or 5.5 gal (21 L), varying by configuration. Maintenance requires cleaning hydraulic oil circuits after servicing pumps or control valves to remove contaminants.
All D21A-8E0(S/N 90001-UP) assemblies by section
Every catalogued assembly group for the Komatsu D21A-8E0(S/N 90001-UP). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
4d94le-2z-Ad S/N 00101-Up
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Air Cleaner (Double Element)
| YM***40 | Valve,Unloader | 1 |
| YM***30 | Pan,Dust | 1 |
| YM***90 | Nipple | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Air Intake Manifold And Connection
| YM***02 | Screw | 2 |
| YM***52 | Bolt | 1 |
| YM***21 | Gasket (Kit) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Alternator (40a) (For Canopy) (Inner Parts)
| YM***30 | Front Bracket Ass'Y | 1 |
| YM***40 | Alternator A. (40a) | 1 |
| YM***00 | Rotor Ass'Y | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Alternator And Mounting (40a) (For Canopy)
| YM***40 | Screw | 1 |
| YM***60 | Nut | 1 |
| YM***30 | Adjuster, Belt | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Camshaft And Tappet
| YM***00 | Tappet Rod | 8 |
| YM***81 | Camshaft Ass'Y | 1 |
| YM***50 | Bearing, Thrust | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Crankshaft (For Canopy)
| YM***00 | Crankshaft, Assembly | 1 |
| YM***20 | Parallel Pin | 1 |
| YM***00 | Gear, Crankshaft | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Cylinder Block
| YM***60 | Cylinder Block Ass'Y | 1 |
| YM***00 | Main Metal Ass'Y (Std) | 5 |
| YM***50 | Plug | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Cylinder Block Accsessory
| YM***50 | Oil Pressure Transmitter | 1 |
| YM***90 | Valve,Water Drain | 1 |
| YM***50 | Cap | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Cylinder Head
| YM***80 | Retainer, Spring | 16 |
| YM***50 | Cap | 8 |
| YM***00 | Cylinder Head Ass'Y | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Cylinder Head Cover
| YM***51 | Cap, Lub. Oil Supply | 1 |
| YM***20 | Plate,Breather | 1 |
| YM***00 | Diaphragm | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Dipstic
| YM***10 | Guide,Oil Gauge | 1 |
| YM***00 | Gauge,Oil | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Drive Gear
| YM***09 | Gear Ass'Y,Hydraulic Pump | 1 |
| YM***00 | Idle Gear Ass'Y | 1 |
| YM***00 | Screw | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Electrical Parts (Forwerded Individually Parts)
| YM***10 | Relay,Stop Solenoid | 1 |
| YM***00 | Relay,Safety | 1 |
| YM***20 | Time Switch | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Exhaust Manifold
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Flywheel And Flywheel Housing (For D21-8)
| YM***52 | Screw | 9 |
| YM***90 | Flywheel Ass'Y | 1 |
| YM***30 | Screw | 6 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Front Cover
| YM***02 | Bolt Plated | 3 |
| YM***00 | Case,Gear | 1 |
| YM***51 | Cap, Lub. Oil Supply | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Front Hanger
| YM***00 | Hook,Front | 1 |
| YM***62 | Bolt,(For Shipping) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Fuel Filter
| YM***00 | Fuel Feed Pump, Assembly | 1 |
| YM***10 | Bracket | 1 |
| YM***00 | Filter Element | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Fuel Injection Pump And Piping
| YM***22 | Screw | 3 |
| YM***20 | Retainer, Pipe | 1 |
| YM***50 | Retainer | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Fuel Nozzle And Spill Hose
| YM***00 | Nozzle Holder Ass'Y | 1 |
| YM***20 | Spring | 1 |
| YM***40 | Screw | 5 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Gasket Kit
| YM***00 | O-Ring (Kit) | 1 |
| YM***40 | O-Ring,Drain Plug | 1 |
| YM***01 | Gasket (Kit) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Lubricating Oil Pump
| YM***30 | Bolt Ass'Y,Joint | 2 |
| YM***02 | Seal,Ring (Kit) | 5 |
| YM***30 | O-Ring (Kit) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Muffler
| YM***62 | Bolt | 1 |
| YM***01 | Gasket (Kit) | 1 |
| YM***20 | Stud Bolt | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Oil Filter
| YM***40 | Stud | 1 |
| YM***52 | Filter Element | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Oil Pan
| YM***00 | O-Ring (Kit) | 1 |
| YM***00 | Spacer | 1 |
| YM***40 | Plug,Drain | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Piston And Connecting Rod
| YM***00 | Connecting Rod, Assembly | 4 |
| YM***01 | Pin, Piston | 4 |
| YM***10 | Bush,Idle Gear (Repair Part) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Rear Hange
| YM***00 | Suspension Plate | 1 |
| YM***62 | Bolt,(For Shipping) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Rocker Arm
| YM***20 | Pedestal | 4 |
| YM***02 | Screw | 2 |
| YM***10 | Retainer | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Starting Motor (2.3kw) (Inner Parts)
| YM***10 | Bearing,Ball | 1 |
| YM***22 | Starting Motor Ass'Y,(2.3kw) | 1 |
| YM***80 | Holder Brush, Assembly | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Starting Motor And Mounting (2.3kw)
| YM***02 | Nut | 1 |
| YM***20 | Cover | 1 |
| YM***02 | Screw | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Tool
| YM***40 | Horn,Flex | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Water Pump And Cooling Fan (For Canopy)
| YM***00 | Water Pump Ass'Y | 1 |
| YM***50 | Pulley | 1 |
| YM***50 | Bolt, Pipe Joint | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ad S/N 00101-Up : Water Separator
| YM***60 | O-Ring (Kit) | 1 |
| YM***50 | O-Ring (Kit) | 1 |
| YM***90 | Ring,Retaining | 1 |
4d94le-2z-Ae S/N 00101-Up
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Air Cleaner (Double Element)
| YM***40 | Valve,Unloader | 1 |
| YM***30 | Pan,Dust | 1 |
| YM***90 | Nipple | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Air Intake Manifold And Connection
| YM***02 | Screw | 2 |
| YM***52 | Bolt | 1 |
| YM***21 | Gasket (Kit) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Alternator (60a) (For Cab) (Inner Parts)
| YM***00 | Stator Ass'Y | 1 |
| YM***12 | Alternator A. (60a) | 1 |
| YM***02 | Rotor Ass'Y | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Alternator And Mounting (60a) (For Cab)
| YM***40 | Distance Piece | 1 |
| YM***40 | Screw | 1 |
| YM***30 | Plate,Adjust | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Camshaft And Tappet
| YM***00 | Tappet Rod | 8 |
| YM***81 | Camshaft Ass'Y | 1 |
| YM***50 | Bearing, Thrust | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Crankshaft (For Cab)
| YM***00 | Crankshaft, Assembly | 1 |
| YM***60 | Pulley | 1 |
| YM***30 | O-Ring (Kit) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Cylinder Block
| YM***60 | Cylinder Block Ass'Y | 1 |
| YM***00 | Main Metal Ass'Y (Std) | 5 |
| YM***50 | Plug | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Cylinder Block Accsessory
| YM***50 | Oil Pressure Transmitter | 1 |
| YM***90 | Valve,Water Drain | 1 |
| YM***50 | Cap | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Cylinder Head
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Cylinder Head Cover
| YM***51 | Cap, Lub. Oil Supply | 1 |
| YM***20 | Plate,Breather | 1 |
| YM***00 | Diaphragm | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Dipstic
| YM***10 | Guide,Oil Gauge | 1 |
| YM***00 | Gauge,Oil | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Drive Gear
| YM***09 | Gear Ass'Y,Hydraulic Pump | 1 |
| YM***00 | Idle Gear Ass'Y | 1 |
| YM***00 | Screw | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Electrical Parts (Forwerded Individually Parts)
| YM***10 | Relay,Stop Solenoid | 1 |
| YM***00 | Relay,Safety | 1 |
| YM***20 | Time Switch | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Exhaust Manifold
| YM***30 | Bolt | 6 |
| YM***51 | Gasket (Kit) | 1 |
| YM***02 | Nut | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Flywheel And Flywheel Housing (For D21-8)
| YM***52 | Screw | 9 |
| YM***90 | Flywheel Ass'Y | 1 |
| YM***30 | Screw | 6 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Front Cover
| YM***02 | Bolt Plated | 3 |
| YM***00 | Case,Gear | 1 |
| YM***51 | Cap, Lub. Oil Supply | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Front Hanger
| YM***00 | Hook,Front | 1 |
| YM***62 | Bolt,(For Shipping) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Fuel Filter
| YM***00 | Fuel Feed Pump, Assembly | 1 |
| YM***10 | Bracket | 1 |
| YM***00 | Filter Element | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Fuel Injection Pump And Piping
| YM***22 | Screw | 3 |
| YM***20 | Retainer, Pipe | 1 |
| YM***50 | Retainer | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Fuel Nozzle And Spill Hose
| YM***00 | Nozzle Holder Ass'Y | 1 |
| YM***20 | Spring | 1 |
| YM***40 | Screw | 5 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Gasket Kit
| YM***00 | O-Ring (Kit) | 1 |
| YM***40 | O-Ring,Drain Plug | 1 |
| YM***01 | Gasket (Kit) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Lubricating Oil Pump
| YM***30 | Bolt Ass'Y,Joint | 2 |
| YM***02 | Seal,Ring (Kit) | 5 |
| YM***30 | O-Ring (Kit) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Muffler
| YM***62 | Bolt | 1 |
| YM***01 | Gasket (Kit) | 1 |
| YM***20 | Stud Bolt | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Oil Filter
| YM***40 | Stud | 1 |
| YM***52 | Filter Element | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Oil Pan
| YM***00 | O-Ring (Kit) | 1 |
| YM***00 | Spacer | 1 |
| YM***40 | Plug,Drain | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Piston And Connecting Rod
| YM***00 | Connecting Rod, Assembly | 4 |
| YM***01 | Pin, Piston | 4 |
| YM***10 | Bush,Idle Gear (Repair Part) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Rear Hange
| YM***00 | Suspension Plate | 1 |
| YM***62 | Bolt,(For Shipping) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Rocker Arm
| YM***20 | Pedestal | 4 |
| YM***02 | Screw | 2 |
| YM***10 | Retainer | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Starting Motor (2.3kw) (Inner Parts)
| YM***10 | Bearing,Ball | 1 |
| YM***22 | Starting Motor Ass'Y,(2.3kw) | 1 |
| YM***80 | Holder Brush, Assembly | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Starting Motor And Mounting (2.3kw)
| YM***02 | Nut | 1 |
| YM***20 | Cover | 1 |
| YM***02 | Screw | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Tool
| YM***40 | Horn,Flex | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Water Pump And Cooling Fan (For Cab)
| YM***00 | Water Pump Ass'Y | 1 |
| YM***50 | Bolt, Pipe Joint | 1 |
| YM***00 | Joint | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : 4d94le-2z-Ae S/N 00101-Up : Water Separator
| YM***60 | O-Ring (Kit) | 1 |
| YM***50 | O-Ring (Kit) | 1 |
| YM***90 | Ring,Retaining | 1 |
Accessory
Komatsu : D21a-8e0(S/N 90001-Up) : Accessory : Body Sheet
| 11***11 | Seat,Chassis | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Accessory : Cap And Overall
| 09***50 | Overall,(Special Order) | 1 |
| 09***57 | Cap,(Special Order) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Accessory : Spaer Parts
| 07***95 | O-Ring,Transmission Strainer | 1 |
| 07***28 | O-Ring,(For Hd325-6?Hm400-1) (A2110) | 2 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Accessory : Tool
| 07***50 | Pump, (Bellows Type) | 1 |
| 07***03 | Cartridge - Grease | 1 |
| 07***17 | Nozzle | 1 |
Cooling System
Komatsu : D21a-8e0(S/N 90001-Up) : Cooling System : Cooling
| 01***16 | Bolt - Seat And Tether Belt Mounting | 4 |
| 01***20 | Bolt,(For Mono Lever Steering) | 6 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
Komatsu : D21a-8e0(S/N 90001-Up) : Cooling System : Cooling Radiator (With Sandy Dusty Protection Grid)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 4 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 4 |
| 01***20 | Bolt,(For Mono Lever Steering) | 8 |
Komatsu : D21a-8e0(S/N 90001-Up) : Cooling System : Reserve Tank
| 01***16 | Bolt - Box Mounting | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***23 | Washer,(With Auto Emergency Steering) | 2 |
Electrical System
Komatsu : D21a-8e0(S/N 90001-Up) : Electrical System : Back-Up Alarm
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***00 | Bolt,(For Front Brake Release) | 2 |
| 01***11 | Nut | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Electrical System : Battery
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
| 08***00 | Terminal? (+),(10l) (Not Shown) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Electrical System : Battery Dry
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
| 08***00 | Terminal? (+),(10l) (Not Shown) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Electrical System : Battery Wiring
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
| 08***50 | Cable | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Electrical System : Vehicle Electrical (Front Lamp Wiring And Switch)
| 01***16 | Bolt - Box Mounting | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 5 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Electrical System : Vehicle Electrical (Front Lamp Wiring And Switch) (For 60a Alternator And Mono Lever Steering)
| 01***16 | Bolt - Box Mounting | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 4 |
| 01***20 | Bolt,(For Mono Lever Steering) | 3 |
Komatsu : D21a-8e0(S/N 90001-Up) : Electrical System : Vehicle Electrical (Vehicle Wiring And Horn)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 18 |
| 01***20 | Bolt,(For Mono Lever Steering) | 3 |
Komatsu : D21a-8e0(S/N 90001-Up) : Electrical System : Vehicle Electrical (Vehicle Wiring And Horn) (For 60a Alternator)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 18 |
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Electrical System : Vehicle Electrical (Vehicle Wiring And Horn) (For Decelerator Pedal)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 18 |
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Electrical System : Vehicle Electrical (Vehicle Wiring) (1/2)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***20 | Bolt,(For Mono Lever Steering) | 6 |
| 01***40 | Bolt (Op) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Electrical System : Vehicle Electrical (Vehicle Wiring) (2/2)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 1 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***05 | Nut,(For Air Conditioner Less), Nut | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Electrical System : Vehicle Lamp
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
| 04***10 | Clip,(With Accumulator) | 2 |
Engine Related Parts
Komatsu : D21a-8e0(S/N 90001-Up) : Engine Related Parts : Damper
| 01***16 | Bolt - Seat And Tether Belt Mounting | 6 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 10 |
| 01***75 | Bolt (M10-1.50x75) | 3 |
Komatsu : D21a-8e0(S/N 90001-Up) : Engine Related Parts : Engine Electrical
| 01***16 | Bolt - Box Mounting | 2 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Engine Related Parts : Engine Electrical (Fuel Line)
| 01***16 | Bolt - Box Mounting | 2 |
| 01***16 | Bolt - Seat And Tether Belt Mounting | 2 |
| 01***25 | Bolt,(Rear Attachment Less) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Engine Related Parts : Engine Electrical (Fuel Line) (For Rops Cab)
| 01***16 | Bolt - Box Mounting | 2 |
| 01***16 | Bolt - Seat And Tether Belt Mounting | 2 |
| 01***25 | Bolt,(Rear Attachment Less) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Engine Related Parts : Engine Mount
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***40 | Bolt (Op) | 8 |
| 01***45 | Bolt,(With Water Separator Type) | 6 |
Komatsu : D21a-8e0(S/N 90001-Up) : Engine Related Parts : Exhaust Pipe
| 01***11 | Nut,(Spark Arrester Spec.) | 2 |
| 61***70 | Bolt | 1 |
| 61***70 | Washer,(Spark Arrester Spec.) | 2 |
Fuel Tank And Related Parts
Komatsu : D21a-8e0(S/N 90001-Up) : Fuel Tank And Related Parts : Control Knob (For Mono Lever Steering) (For F2-R2 Transmission)
| 09***35 | Knob (Op) | 1 |
| 10***31 | Knob,(For F2-R2 Transmission) | 1 |
| 11***60 | Plug | 5 |
Komatsu : D21a-8e0(S/N 90001-Up) : Fuel Tank And Related Parts : Control Knob (For Mono Lever Steering) (For F3-R3 Transmission)
| 09***35 | Knob (Op) | 1 |
| 11***60 | Plug | 5 |
| 17***82 | Knob,(For F3-R3 Transmission) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Fuel Tank And Related Parts : Control Knob (For Mono Lever Steering) (For Rops Cab)
| 09***35 | Knob (Op) | 1 |
| 10***10 | Extension,(With Cab) | 1 |
| 10***20 | Nut,(With Cab) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Fuel Tank And Related Parts : Fuel Guide And Transmission Knob (For Rops Cab)
| 01***25 | Bolt | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
| 10***50 | Cover | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Fuel Tank And Related Parts : Fuel Guide(For Mono Lever Steering)
| 01***25 | Screw | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
| 10***10 | Cover | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Fuel Tank And Related Parts : Fuel Line
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 4 |
| 01***20 | Bolt,(For Mono Lever Steering) | 7 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Fuel Tank And Related Parts : Fuel Tank
| 01***40 | Bolt,For Weight Adjusting Bolt | 4 |
| 01***10 | Screw,(For Wiper Switch Earth) | 5 |
| 01***25 | Bolt | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Fuel Tank And Related Parts : Fuel Tank (For Decelerator Pedal)
| 01***40 | Bolt,For Weight Adjusting Bolt | 4 |
| 01***10 | Screw,(For Wiper Switch Earth) | 5 |
| 01***25 | Bolt | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Fuel Tank And Related Parts : Fuel Tank (For Rops Cab)
| 01***40 | Bolt,For Weight Adjusting Bolt | 4 |
| 01***10 | Screw,(For Wiper Switch Earth) | 5 |
| 01***25 | Bolt | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Fuel Tank And Related Parts : P.P.C. Valve Mount
| 01***25 | Bolt,(Rear Attachment Less) | 3 |
| 01***30 | Bolt - M8 X 30lg | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Fuel Tank And Related Parts : Transmission Control Lever (1/2) (For Mono Lever Steering)
| 01***30 | Bolt - M8 X 30lg | 4 |
| 01***05 | Nut,L.H. Thread (D31s) | 1 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Fuel Tank And Related Parts : Transmission Control Lever (1/2) (For Rops Cab)
| 01***30 | Bolt - M8 X 30lg | 4 |
| 01***05 | Nut,L.H. (For Trimming Dozer) | 1 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Fuel Tank And Related Parts : Transmission Control Lever (2/2) (For Mono Lever Steering)
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***05 | Nut,L.H. (For Trimming Dozer) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Fuel Tank And Related Parts : Transmission Control Lever Linkage (For Mono Lever Steering)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***30 | Bolt - M8 X 30lg | 4 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
Guard
Komatsu : D21a-8e0(S/N 90001-Up) : Guard : Engine Hood
| 01***20 | Bolt,(For Mono Lever Steering) | 6 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 5 |
| 01***06 | Screw | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Guard : Engine Hood (With Precleaner)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 7 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 5 |
Komatsu : D21a-8e0(S/N 90001-Up) : Guard : Engine Side Cover
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
Komatsu : D21a-8e0(S/N 90001-Up) : Guard : Engine Side Cover (Except Japan)
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
Komatsu : D21a-8e0(S/N 90001-Up) : Guard : Engine Side Cover (For Rops Cab)
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
Komatsu : D21a-8e0(S/N 90001-Up) : Guard : Engine Side Cover (For Rops Cab) (Except Japan)
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
Komatsu : D21a-8e0(S/N 90001-Up) : Guard : Fender
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 3 |
| 01***35 | Capscrew - M14 (1)/(2) | 8 |
| 01***40 | Capscrew | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Guard : Fender (For 3-Point Hitch)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 3 |
| 01***35 | Capscrew - M14 (1)/(2) | 8 |
| 01***40 | Capscrew | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Guard : Front Hook
| 01***45 | Bolt, M14x2.0x45 | 6 |
| 01***45 | Washer,(For Quick Shift) (Mitsubishi) | 6 |
| 11***10 | Hook D41e?D40am | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Guard : Radiator Guard
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 8 |
| 01***16 | Screw,(P.O.C. Model) (Except Japan) | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Guard : Radiator Mask
| 01***30 | Bolt - M14 X 30lg | 4 |
| 01***45 | Washer,(For Quick Shift) (Mitsubishi) | 4 |
| 10***52 | Grille | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Guard : Radiator Mask (Reinforced Type)
| 01***30 | Bolt - M14 X 30lg | 4 |
| 01***45 | Washer,(For Quick Shift) (Mitsubishi) | 4 |
| 10***40 | Grille,(Reinforced Type) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Guard : Rear Bracket
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***40 | Capscrew | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Guard : Rear Cover
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***35 | Capscrew - M14 (1)/(2) | 4 |
| 01***45 | Bolt, M14x2.0x45 | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Guard : Rear Cover (For 3-Point Hitch) (For 2-Piller Type Canopy)
| 01***30 | Bolt - M14 X 30lg | 2 |
| 01***35 | Capscrew - M14 (1)/(2) | 4 |
| 01***50 | Capscrew | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Guard : Rear Cover (For 3-Point Hitch) (For 4-Piller Type Canopy)
| 01***30 | Bolt - M14 X 30lg | 2 |
| 01***50 | Capscrew | 4 |
| 01***45 | Washer,(For Quick Shift) (Mitsubishi) | 6 |
Komatsu : D21a-8e0(S/N 90001-Up) : Guard : Rear Cover (For 4 Pillar Type Canopy)
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***50 | Capscrew | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Guard : Rear Cover (For Rops Cab)
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***35 | Capscrew - M14 (1)/(2) | 4 |
| 01***45 | Bolt, M14x2.0x45 | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Guard : Rear Cover (For Vandalism Protection)
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***35 | Capscrew - M14 (1)/(2) | 4 |
| 01***45 | Bolt, M14x2.0x45 | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Guard : Rops Mount
| 01***40 | Capscrew | 18 |
| 01***45 | Bolt, M14x2.0x45 | 16 |
| 01***45 | Washer,(For Quick Shift) (Mitsubishi) | 34 |
Komatsu : D21a-8e0(S/N 90001-Up) : Guard : Rops Mount (For Rops Cab)
| 01***40 | Capscrew | 18 |
| 01***45 | Bolt, M14x2.0x45 | 16 |
| 01***45 | Washer,(For Quick Shift) (Mitsubishi) | 34 |
Komatsu : D21a-8e0(S/N 90001-Up) : Guard : Under Guard
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***30 | Bolt - M14 X 30lg | 12 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 3 |
Komatsu : D21a-8e0(S/N 90001-Up) : Guard : Under Guard (Available For Mounting Hook)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***30 | Bolt - M14 X 30lg | 12 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 3 |
Komatsu : D21a-8e0(S/N 90001-Up) : Guard : Under Guard (Reinforced Type)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***30 | Bolt - M14 X 30lg | 12 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 3 |
Hydraulic System
Komatsu : D21a-8e0(S/N 90001-Up) : Hydraulic System : Hydraulic Piping (Angle Cylinder Line) (Chassis Side)
| 01***35 | Bolt,(F4320-52a0 -5 ) | 1 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 1 |
| 02***13 | Union | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Hydraulic System : Hydraulic Piping (Delivery Piping And Safty Cover) (For 3-Valve)
| 01***25 | Bolt,(Rear Attachment Less) | 1 |
| 01***30 | Bolt - M8 X 30lg | 4 |
| 01***35 | Bolt,(For Fix Position) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Hydraulic System : Hydraulic Piping (Delivery Piping And Safty Cover) (For 4-Valve)
| 01***25 | Bolt,(Rear Attachment Less) | 1 |
| 01***30 | Bolt - M8 X 30lg | 4 |
| 01***35 | Bolt,(For Fix Position) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Hydraulic System : Hydraulic Piping (Suction Piping) (For 3-Valve)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Hydraulic System : Hydraulic Piping (Suction Piping) (For 4-Valve)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Hydraulic System : Hydraulic Piping (Tilt Cylinder Line) (Chassis Side)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Hydraulic System : Hydraulic Piping (Valve To Cylinder) (For 3-Point Hitch)
| 01***18 | Bolt | 1 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 1 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Hydraulic System : Hydraulic Tank
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 5 |
| 01***40 | Bolt,For Weight Adjusting Bolt | 4 |
| 01***06 | Screw | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Hydraulic System : Hydraulic Tank (For 3-Point Hitch)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 5 |
| 01***40 | Bolt,For Weight Adjusting Bolt | 4 |
| 01***06 | Screw | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Hydraulic System : Hydraulic Tank (For Rops Cab)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 5 |
| 01***40 | Bolt,For Weight Adjusting Bolt | 4 |
| 01***06 | Screw | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Hydraulic System : Lift Cylinder Line (For Pat)
| 01***30 | Bolt,(With Body Positioner) | 6 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Hydraulic System : Lift Cylinder Line (For Pat) (For F3-R3 Transmission)
| 01***30 | Bolt,(With Body Positioner) | 6 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Hydraulic System : Main Pump (Mount)
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
| 07***85 | O-Ring,(Without Fuel Level Gauge) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Hydraulic System : Main Valve (Mount) (For Pat)
| 01***25 | Bolt,(Rear Attachment Less) | 7 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 7 |
| 07***15 | O-Ring,(Without Boom Kickout) | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Hydraulic System : Main Valve (Mount) (For Pat) (For 3-Point Hitch)
| 01***25 | Bolt,(Rear Attachment Less) | 7 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 7 |
| 07***15 | O-Ring,(Without Boom Kickout) | 4 |
Main Frame And Related Parts
Komatsu : D21a-8e0(S/N 90001-Up) : Main Frame And Related Parts : Side Frame
| 01***55 | Bolt,(Not Used For Chip Dozer) | 12 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 12 |
| 07***08 | Plug | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Main Frame And Related Parts : Side Frame (For Pat Dozer) (For Decelerator Pedal)
| 01***55 | Bolt,(Not Used For Chip Dozer) | 12 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 12 |
| 07***08 | Plug | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Main Frame And Related Parts : Steering Case Frame
| 01***20 | Bolt,(For Mono Lever Steering) | 6 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 1 |
| 01***45 | Bolt,(With Water Separator Type) | 6 |
Komatsu : D21a-8e0(S/N 90001-Up) : Main Frame And Related Parts : Suspension
| 01***40 | Capscrew | 8 |
| 01***40 | Bolt,(For Slag Handling) (For Usa) | 8 |
| 01***45 | Bolt,(For 60ton Dump Body) | 4 |
Marks And Plates
Komatsu : D21a-8e0(S/N 90001-Up) : Marks And Plates : Center Of Gravity Mark
| 09***11 | Mark Plate,Hanging Point Mark | 2 |
| 10***40 | Plate? Mark,Hanging Point | 4 |
| 10***50 | Plate? Mark,Tie Down Point | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Marks And Plates : Marks And Plates (English)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 09***00 | Plate? Safety,Inspection And Maintenance | 1 |
| 09***63 | Plate? Instruction,Air Cleaner (Single Element) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Marks And Plates : Marks And Plates (English) (For Rops Cab)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 09***00 | Plate? Safety,Inspection And Maintenance | 1 |
| 09***63 | Plate? Instruction,Air Cleaner (Single Element) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Marks And Plates : Marks And Plates (English) (U.S.A. And Puerto Rico)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 09***00 | Plate? Safety,Inspection And Maintenance | 1 |
| 09***63 | Plate? Instruction,Air Cleaner (Single Element) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Marks And Plates : Marks And Plates (U.S.A.)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 09***00 | Plate? Safety,Inspection And Maintenance | 1 |
| 09***63 | Plate? Instruction,Air Cleaner (Single Element) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Marks And Plates : Marks And Plates (U.S.A.) (For Rops Cab)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 09***00 | Plate? Safety,Inspection And Maintenance | 1 |
| 09***63 | Plate? Instruction,Air Cleaner (Single Element) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Marks And Plates : Rops Plate Unit (English)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| (****0) | Plate,(Limited Supply) | 1 |
Miscellaneous
Komatsu : D21a-8e0(S/N 90001-Up) : Miscellaneous : Vandalism Protection
| 07***00 | Cap,(For Vandalism) | 1 |
| 09***00 | Lock,(With Vandalism Protection) | 1 |
Operator'S Compartment And Control System
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Air Conditioner (Air Conditioner Unit And Mounting)
| 01***16 | Bolt - Box Mounting | 2 |
| 01***16 | Bolt - Seat And Tether Belt Mounting | 16 |
| 01***20 | Bolt,(For Mono Lever Steering) | 6 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Air Conditioner (Compressor)
| 01***25 | Capscrew | 4 |
| 01***16 | Bolt - Seat And Tether Belt Mounting | 1 |
| 01***25 | Bolt,(Rear Attachment Less) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Air Conditioner (Condensor And Mounting)
| 01***16 | Bolt - Box Mounting | 7 |
| 01***20 | Bolt,(Without Air Con. Or Heater) | 2 |
| 01***16 | Bolt - Seat And Tether Belt Mounting | 7 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Air Conditioner (Grill And Control Panel)
| 01***16 | Screw, Mount Parking Lights | 4 |
| 01***16 | Screw,(P.O.C. Model) (Except Japan) | 9 |
| 01***08 | Washer,(For Fixed Type Ripper) | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Air Conditioner (Guard)
| 01***16 | Bolt - Box Mounting | 10 |
| 01***20 | Bolt,(For Mono Lever Steering) | 6 |
| 01***30 | Bolt,(With Body Positioner) | 6 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Air Conditioner (Heater Piping)
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Air Conditioner (Mounting Parts)
| 01***35 | Capscrew - M14 (1)/(2) | 4 |
| 01***45 | Washer,(For Quick Shift) (Mitsubishi) | 4 |
| 10***21 | Bracket | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Air Conditioner (Piping? Cover And Air Duct)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 4 |
| 01***20 | Bolt,(For Mono Lever Steering) | 11 |
| 01***16 | Bolt | 8 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Air Conditioner Condensor Unit
| 08***82 | Harness, Seat | 1 |
| 10***32 | Condenser | 1 |
| 11***81 | Shroud | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Air Conditioner Unit
| 10***12 | Air Conditioner Unit | 1 |
| TW***70 | Case Ass'Y | 1 |
| TW***70 | Tube | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Arm Rest
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
| 11***40 | Rest,Arm | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Brake Control Pedal (Brake Pedal) (For Mono Lever Steering)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,(With Body Positioner) | 5 |
| 01***32 | Screw | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Brake Control Pedal (Brake Pedal) (For Rops Cab) (For Mono Lever Steering)
| 01***30 | Bolt - M8 X 30lg | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,(With Body Positioner) | 5 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Brake Control Pedal (Linkage) (For Mono Lever Steering)
| 01***45 | Bolt, Mounting Cranking Motor | 1 |
| 01***06 | Nut,L.H. Thread (For Russian) | 3 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Center Floor
| 01***20 | Bolt,(For Mono Lever Steering) | 8 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
| 10***10 | Plate,Floor (D21) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Center Floor (For Decel)
| 01***20 | Bolt,(For Mono Lever Steering) | 11 |
| 01***32 | Washer,(With Auto Emergency Steering) | 11 |
| 10***10 | Bracket | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Center Floor (For Rops Cab)
| 01***20 | Bolt,(For Mono Lever Steering) | 13 |
| 01***30 | Bolt,(With Body Positioner) | 5 |
| 01***32 | Washer,(With Auto Emergency Steering) | 18 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Decelerator Pedal (Pedal Control 1/2)
| 01***30 | Bolt - M8 X 30lg | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Decelerator Pedal (Pedal Control 2/2)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***30 | Bolt - M8 X 30lg | 2 |
| 01***05 | Nut,L.H. (For Trimming Dozer) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Decelerator Pedal (Pedal)
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***30 | Screw | 1 |
| 01***16 | Screw | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Floor Mat
| 10***32 | Floor Mat,(For D21) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Floor Mat (For Decel)
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Floor Mat (For Rops Cab)
| 10***10 | Floor Mat | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Fuel Control Cable
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***40 | Bolt (Op) | 1 |
| 01***04 | Nut,(For Air Conditioner Less) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Fuel Control Cable (For Decel)
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***45 | Bolt,(With Water Separator Type) | 1 |
| 01***08 | Washer | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Handrail
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 6 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Handrail (For 2 Levers Steering 4-Pillar Type Canopy) Or (For Rops Cab)
| 07***18 | Plug,(With Extinguisher) (D31p) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Handrail (For 4-Pillar Type Canopy)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
| 10***11 | Handle | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Inching Control (For F2-R2 Transmission)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***30 | Bolt,(With Body Positioner) | 3 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Inching Control (For F2-R2 Transmission) (For Decel)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***30 | Bolt,(With Body Positioner) | 3 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Inching Control (For F2-R2 Transmission) (For Rops Cab)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***30 | Bolt,(With Body Positioner) | 3 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Inching Control (Inching Pedal) (For F3-R3 Transmission)
| 01***30 | Bolt,(With Body Positioner) | 3 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 3 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Inching Control (Inching Pedal) (For F3-R3 Transmission) (For Rops Cab)
| 01***30 | Bolt,(With Body Positioner) | 3 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 3 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Inching Control (Linkage) (For F3-R3 Transmission)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Bolt,(With Body Positioner) | 1 |
| 01***06 | Nut,L.H. Thread (For Russian) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Operator'S Seat
| 01***25 | Bolt,(Rear Attachment Less) | 8 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Operator'S Seat (For 3-Point Hitch) : Unit_02_of_02
| 01***25 | Bolt,(Rear Attachment Less) | 8 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Operator'S Seat (For 3-Point Hitch) : Unit_01_of_02
| 01***25 | Bolt,(Rear Attachment Less) | 8 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Operator'S Seat (For Except Japan)
| 01***25 | Bolt,(Rear Attachment Less) | 8 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Operator'S Seat (For Rops Cab)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 3 |
| 01***25 | Bolt,(Rear Attachment Less) | 8 |
| 01***30 | Bolt,(With Body Positioner) | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Operator'S Seat (For Suspension Seat)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 3 |
| 01***20 | Bolt,(For Mono Lever Steering) | 9 |
| 01***30 | Bolt,(With Body Positioner) | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Operator'S Seat (With Oil Damper)
| 01***20 | Bolt,(For Mono Lever Steering) | 9 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***10 | Nut,(Without Air Conditioner) | 8 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Operator'S Seat (With Oil Damper) (For 3-Point Hitch)
| 01***20 | Bolt,(For Mono Lever Steering) | 9 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***10 | Nut,(Without Air Conditioner) | 8 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Panel (Bracket) (For Rops Cab)
| 01***20 | Bolt,(For Mono Lever Steering) | 3 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Panel (For Mono Lever Steering)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 4 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 3 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Panel (For Mono Lever Steering) (New Safety Key)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 4 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 3 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Panel (For Mono Lever Steering) (With Vandalism Protection)
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Panel (For Rops Cab)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 4 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 3 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Rops Cab (Body And Door)
| 01***20 | Bolt | 4 |
| 01***45 | Bolt | 4 |
| 01***25 | Bolt | 10 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Rops Cab (Body Seal)
| 01***16 | Bolt | 9 |
| 01***23 | Washer | 9 |
| 10***41 | Seal,L.H | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Rops Cab (Door Open Lock And Rear Window)
| 01***16 | Bolt | 4 |
| 01***25 | Bolt | 8 |
| 01***12 | Screw | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Rops Cab (Electrical 1/3)
| 01***16 | Bolt - Box Mounting | 8 |
| 01***16 | Screw | 3 |
| 01***14 | Screw | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Rops Cab (Electrical 2/3)
| 01***16 | Screw,(With Payload Meter) | 4 |
| 08***04 | Conduit | 1 |
| 08***20 | Conduit | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Rops Cab (Electrical 3/3)
| 01***16 | Bolt | 3 |
| 01***20 | Bolt,Sems | 2 |
| 01***10 | Screw | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Rops Cab (Mount Cushion)
| 01***80 | Washer,(For R.H. Steering) | 4 |
| 10***50 | Bracket | 2 |
| 10***60 | Bracket | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Rops Cab (Roof Lining And Room Mirror)
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Rops Cab (Washer Tank)
| 01***16 | Bolt - Box Mounting | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***16 | Bolt | 6 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Rops Cab (Window Glass)
| 01***16 | Bolt | 4 |
| 01***20 | Screw | 4 |
| 01***32 | Plain Washer | 8 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Rops Canopy
| 01***80 | Washer,(For R.H. Steering) | 4 |
| 10***50 | Bracket | 2 |
| 10***60 | Bracket | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Seat Belt
| 09***01 | Bolt,(For Shipping) | 2 |
| 09***02 | Washer,(For Shipping) | 2 |
| 09***03 | Nut,(For Shipping) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Seat Belt (For Oil Damper)
| 09***01 | Bolt,(For Shipping) | 4 |
| 09***02 | Washer,(For Shipping) | 4 |
| 09***03 | Nut,(For Shipping) | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Seat Front Cover
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
| 10***10 | Cover | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Seat Front Cover (For Rops Cab)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
| 01***25 | Bolt? Wing,Wing | 2 |
| 01***05 | Nut,(For Air Conditioner Less), Nut | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Seat Front Cover (For Oil Damper)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
| 10***20 | Cover | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Seat Front Cover (For Suspension Seat)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
| 01***25 | Bolt? Wing,Wing | 2 |
| 01***05 | Nut,(For Air Conditioner Less), Nut | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Side Floor
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 6 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Side Floor (For Rops Cab)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 10 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Work Equipment Control (Attachment Lever) (For Pat Dozer) (For 3-Point Hitch)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***30 | Bolt - M8 X 30lg | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Work Equipment Control (Guide) (For Pat Dozer)
| 01***25 | Screw | 1 |
| 01***30 | Bolt | 1 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Work Equipment Control (Guide) (For Pat Dozer) (For 3-Point Hitch)
| 01***25 | Screw | 1 |
| 01***30 | Bolt | 1 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Work Equipment Control (Guide) (For Pat Dozer) (For Rops Cab)
| 01***25 | Screw | 1 |
| 01***30 | Bolt | 1 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Work Equipment Control (Knob) (For Pat Dozer)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 4 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 4 |
| 04***12 | Pin,Cotter(W/Vandalism Protection) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Work Equipment Control (Knob) (For Pat Dozer) (For 3-Point Hitch)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 4 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 4 |
| 04***12 | Pin,Cotter(W/Vandalism Protection) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Work Equipment Control (Knob) (For Pat Dozer) (For Rops Cab)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 3 |
| 01***55 | Screw | 1 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Work Equipment Control (Lever? 1/3) (For Pat Dozer)
| 01***30 | Bolt - M8 X 30lg | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
| 04***16 | Fitting Wedge | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Work Equipment Control (Lever? 1/3) (For Pat Dozer) (For 3-Point Hitch)
| 01***30 | Bolt - M8 X 30lg | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
| 04***16 | Fitting Wedge | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Work Equipment Control (Lever? 1/3) (For Pat Dozer) (For Rops Cab)
| 01***30 | Bolt - M8 X 30lg | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
| 04***16 | Fitting Wedge | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Work Equipment Control (Lever? 2/3) (For Pat Dozer)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 1 |
| 01***30 | Bolt - M8 X 30lg | 7 |
| 01***05 | Nut,L.H. (For Trimming Dozer) | 3 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Work Equipment Control (Lever? 3/3) (For Pat Dozer)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 1 |
| 01***25 | Bolt,(Rear Attachment Less) | 2 |
| 01***30 | Bolt - M8 X 30lg | 3 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Work Equipment Control (Lever? 3/3) (For Pat Dozer) (For 3-Point Hitch)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 1 |
| 01***25 | Bolt,(Rear Attachment Less) | 1 |
| 01***30 | Bolt - M8 X 30lg | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Operator'S Compartment And Control System : Work Equipment Control (Lever? 3/3) (For Pat Dozer) (For Rops Cab)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 1 |
| 01***25 | Bolt,(Rear Attachment Less) | 2 |
| 01***30 | Bolt - M8 X 30lg | 3 |
Power Train And Final Drive
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Bevel Gear Shaft
| 01***30 | Screw | 9 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 6 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 6 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Brake Cylinder (For Mono Lever Steering)
| 01***45 | Bolt,(With Water Separator Type) | 4 |
| 01***11 | Nut - Mounting | 2 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Final Drive
| 01***30 | Bolt,(With Body Positioner) | 16 |
| 01***11 | Nut - Mounting | 24 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 16 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Final Drive (Pinion And Sprocket)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 24 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 8 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Steering Brake (For Mono Lever Steering)
| 10***60 | Rivet | 32 |
| 10***30 | Band | 1 |
| 10***21 | Band Ass'Y,Brake | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Steering Brake Support (For Mono Lever Steering)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***50 | Bolt,(Spark Arrester Spec.) | 18 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Steering Case Cover (L.H.) (For Mono Lever Steering)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***45 | Bolt, M14x2.0x45 | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Steering Case Cover (R.H.) (For Mono Lever Steeri
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***45 | Bolt, M14x2.0x45 | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Steering Clutch (For F2-R2 Transmission)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 16 |
| 01***10 | Nut (K10) | 2 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 16 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Steering Clutch (For F3-R3 Transmission)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 16 |
| 01***10 | Nut (K10) | 2 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 16 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Steering Cylinder (For Mono Lever Steering)
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 4 |
| 07***60 | O-Ring,(For Pc750?800?1800) (A2610) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Steering Cylinder Line (For Mono Lever Steering)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 5 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Steering Oil Lines (For Mono Lever Steering) (For F2-R2 Transmission)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***80 | Bolt,For Weight Adjusting Bolt | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Steering Oil Lines (For Mono Lever Steering) (For F3-R3 Transmission)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***80 | Bolt,For Weight Adjusting Bolt | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Steering Valve (For Mono Lever Steering)
| (7***3) | Pilot Valve | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transfer And Bevel Gear (For F2-R2 Transmission)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 4 |
| 01***75 | Bolt - Tube Mounting | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transfer And Bevel Gear (For F3-R3 Transmission)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***75 | Bolt - Tube Mounting | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transmission (For F2-R2 Transmission) (1st Housing)
| 04***25 | Ring,(W/Emergency Steering) (1m?1d) | 1 |
| 06***08 | Bearing | 1 |
| 07***40 | O-Ring,(F2320-53a0 -4 ) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transmission (For F2-R2 Transmission) (Carrier) (1/3) (Reverse)
| 04***12 | Pin, Spring | 3 |
| 04***18 | Ring,Snap (With Emergency Steering) | 1 |
| 10***21 | Gear | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transmission (For F2-R2 Transmission) (Carrier) (2/3) (Forward And 2nd)
| 04***12 | Pin, Spring | 3 |
| 04***15 | Ring, Snap | 1 |
| 04***15 | Ring,Back-Up | 3 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transmission (For F2-R2 Transmission) (Carrier) (3/3) (1st)
| 04***12 | Pin, Spring | 3 |
| 04***18 | Ring,Snap (With Emergency Steering) | 1 |
| 04***20 | Ring, Snap | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transmission (For F2-R2 Transmission) (Case) (For Mono Lever Steering)
| 01***25 | Bolt,(Rear Attachment Less) | 2 |
| 01***35 | Bolt,(For Fix Position) | 3 |
| 01***50 | Bolt,(Spark Arrester Spec.) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transmission (For F2-R2 Transmission) (Control Valve)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 4 |
| 01***60 | Bolt,(With Body Positioner) | 2 |
| 01***70 | Screw | 6 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transmission (For F2-R2 Transmission) (Filler)
| 01***35 | Bolt,(F4320-52a0 -5 ) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
| 07***22 | O-Ring,(See Fig.Y1852-01a0) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transmission (For F2-R2 Transmission) (Forward And 2nd Housing)
| 07***08 | Plug,(Without Lock-Up), Plug | 1 |
| 10***41 | Housing Ass'Y,Forward And 2nd | 1 |
| 10***70 | Plate | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transmission (For F2-R2 Transmission) (Input And Output Shaft)
| 01***50 | Bolt,(Spark Arrester Spec.) | 1 |
| 06***08 | Bearing,Roller | 1 |
| 07***22 | O-Ring,(F5350-61a0 -14 ) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transmission (For F2-R2 Transmission) (Lever) (For Mono Lever Steering)
| 01***30 | Bolt - M8 X 30lg | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***25 | Screw | 3 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transmission (For F2-R2 Transmission) (Pump)
| 01***45 | Screw | 3 |
| 01***55 | Screw | 7 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transmission (For F2-R2 Transmission) (Reverse Housing)
| 04***25 | Ring,Snap (Kit) | 1 |
| 06***08 | Bearing,Ball | 1 |
| 06***10 | Bearing,Ball | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transmission (For F2-R2 Transmission) (Shift Valve) (For 2 Levers Steering)
| 01***25 | Bolt,(Rear Attachment Less) | 2 |
| 01***50 | Capscrew | 7 |
| 01***75 | Capscrew | 3 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transmission (For F3-R3 Transmission) (1st Housing) (For Mono Lever Steering)
| 01***45 | Screw | 10 |
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***08 | Screw | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transmission (For F3-R3 Transmission) (2nd Housing)
| 10***50 | Bolt | 4 |
| 10***50 | Housing Ass'Y,2nd | 1 |
| 10***70 | Hub | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transmission (For F3-R3 Transmission) (Carrier) (For Mono Lever Steering)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 4 |
| 04***25 | Ring,(W/Emergency Steering) (1m?1d) | 1 |
| 06***08 | Bearing,Ball | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transmission (For F3-R3 Transmission) (Case)
| 01***65 | Hexagon Bolt | 2 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***35 | Bolt,(For Fix Position) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transmission (For F3-R3 Transmission) (Control Valve)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 5 |
| 01***60 | Bolt,(With Body Positioner) | 3 |
| 01***70 | Screw | 5 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transmission (For F3-R3 Transmission) (Filler)
| 01***35 | Bolt,(F4320-52a0 -5 ) | 2 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 2 |
| 07***22 | O-Ring,(See Fig.Y1852-01a0) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transmission (For F3-R3 Transmission) (Forward And 3rd Housing) (For Mono Lever Steering)
| 04***24 | Pin,Dowel (For No.3 Housing) | 2 |
| 07***05 | O-Ring,(Not Used With Emergency Str.) (K2) | 1 |
| 07***54 | Ring,(F2320-57a0 -2 ) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transmission (For F3-R3 Transmission) (Inching Lever)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***05 | Nut,L.H. (For Trimming Dozer) | 1 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transmission (For F3-R3 Transmission) (Input And Output)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***12 | Washer,(F2320-63a2 -13 ) | 1 |
| 04***00 | Key | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transmission (For F3-R3 Transmission) (Lever) (For Mono Lever Steering)
| 01***30 | Bolt - M8 X 30lg | 4 |
| 01***25 | Screw | 3 |
| 01***05 | Nut,L.H. (For Trimming Dozer) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transmission (For F3-R3 Transmission) (Pump)
| 01***45 | Screw | 3 |
| 01***55 | Screw | 7 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transmission (For F3-R3 Transmission) (Reverse Housing) (For Mono Lever Steering)
| 04***25 | Ring, Retaining | 1 |
| 06***13 | Bearing,Ball | 1 |
| 07***70 | O-Ring,(F2320-52a3 -9 ) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transmission (For F3-R3 Transmission) (Shift Valve) (For Mono Lever Steering)
| 01***25 | Bolt,(Rear Attachment Less) | 2 |
| 01***50 | Capscrew | 8 |
| 01***75 | Capscrew | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transmission Oil Line (For F2-R2 Transmission)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transmission Oil Line (For F3-R3 Transmission)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transmission Support (For F2-R2 Transmission)
| 01***30 | Bolt,(With Body Positioner) | 12 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 5 |
| 01***30 | Stud | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Transmission Support (For F3-R3 Transmission)
| 01***30 | Bolt,(With Body Positioner) | 12 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 5 |
| 01***30 | Stud | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Power Train And Final Drive : Universal Joint
| 01***40 | Screw, Hex Socket | 8 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 8 |
| 07***75 | Fitting,Grease (Without Lub. Piping) | 1 |
Service Kit And Component Parts
Komatsu : D21a-8e0(S/N 90001-Up) : Service Kit And Component Parts : Blade Angle Cylider (Pat Dozer)
| 02***09 | O-Ring,(F4350-61a0 -41 ) | 2 |
| 04***20 | Ring, Snap | 4 |
| 07***65 | O-Ring,(F5350-62a0 -14 ) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Service Kit And Component Parts : Blade Lift Cylinder (Pat Dozer)
| 01***40 | Bolt (Op) | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
| 02***09 | O-Ring,(F4350-61a0 -41 ) | 3 |
Komatsu : D21a-8e0(S/N 90001-Up) : Service Kit And Component Parts : Blade Tilt Cylinder (Pat Dozer)
| 02***08 | O-Ring (Kit) | 2 |
| 04***20 | Ring, Snap | 4 |
| 07***75 | O-Ring,Cylinder Head | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Service Kit And Component Parts : Main Pump
| 01***32 | Washer, (Without Emergency Steering) | 4 |
| 04***20 | Pin,Dowel (Welded) | 4 |
| 04***15 | Ring, Snap | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Service Kit And Component Parts : Ppc Valve
| 01***20 | Bolt,(Without Air Con. Or Heater) | 4 |
| 07***70 | O-Ring,(For Intake Air Cover) | 1 |
| 07***20 | O-Ring,(0202-007) | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Service Kit And Component Parts : Service Kit (F2-R2)
| 07***08 | O-Ring,(F2320-53a3 -38 ) | 5 |
| 07***95 | O-Ring,Transmission Strainer | 1 |
| 07***22 | O-Ring,(See Fig.Y1852-01a0) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Service Kit And Component Parts : Service Kit (F3-R3)
| 01***12 | Washer,(F2320-63a2 -13 ) | 1 |
| 07***08 | O-Ring,(F2320-53a3 -38 ) | 5 |
| 07***95 | O-Ring,Transmission Strainer | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Service Kit And Component Parts : Shoe Bolt And Nut Service Kit (Supply Only)
| 20***01 | Shoe Bolt And Nut K | 1 |
| 20***11 | Bolt? Shoe (Y0320-K1) | 50 |
| 20***20 | Nut? Shoe (Y0320-K2) | 50 |
Komatsu : D21a-8e0(S/N 90001-Up) : Service Kit And Component Parts : Track Link (Lubricate Type) (74 Set) (Supply Only)
| 07***22 | Plug,Large | 74 |
| 07***21 | Plug,(Small) | 74 |
| 10***21 | Link,Track? L.H | 72 |
Komatsu : D21a-8e0(S/N 90001-Up) : Service Kit And Component Parts : Track Link (Master Pin Type) (74 Set) (Supply Only)
| 10***21 | Link,Track? L.H | 74 |
| 10***31 | Link,Track? R.H | 74 |
| 10***44 | Bushing,Regular | 72 |
Komatsu : D21a-8e0(S/N 90001-Up) : Service Kit And Component Parts : Track Link (Master Pin Type) (78 Set) (Supply Only)
| 10***21 | Link,Track? L.H | 78 |
| 10***31 | Link,Track? R.H | 78 |
| 10***44 | Bushing,Regular | 76 |
Under Carriage
Komatsu : D21a-8e0(S/N 90001-Up) : Under Carriage : Carrier Roller
| 01***25 | Bolt,(For Shipping) | 1 |
| 01***25 | Bolt,(Rear Attachment Less) | 3 |
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Under Carriage : Front Idler
| 01***30 | Bolt,(With Body Positioner) | 8 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 2 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Under Carriage : Idler Cushion
| 01***16 | Bolt - Seat And Tether Belt Mounting | 4 |
| 01***30 | Bolt - Pin Mounting | 12 |
| 01***50 | Bolt,(For D60pl) | 8 |
Komatsu : D21a-8e0(S/N 90001-Up) : Under Carriage : Idler Cushion (L.H.) (Reinforced Type)
| 01***30 | Bolt - M8 X 30lg | 2 |
| 01***50 | Bolt,(For D60pl) | 4 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Under Carriage : Idler Cushion (R.H.) (Reinforced Type)
| 01***30 | Bolt - M8 X 30lg | 2 |
| 01***30 | Bolt - Pin Mounting | 12 |
| 01***50 | Bolt,(For D60pl) | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Under Carriage : Idler Cushion Rod
| 01***30 | Bolt,(Not Used When Towing Winch) | 8 |
| 01***36 | Wahser-Spring, Washer,Spring (Without Towing Winch) | 8 |
| 10***10 | Yoke Ass'Y | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Under Carriage : Track Frame (For Pat)
| 07***18 | Plug,(With Extinguisher) (D31p) | 12 |
| 10***30 | Plate (Welded) | 2 |
| 10***11 | Frame,Track? L.H | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Under Carriage : Track Frame Cover
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 8 |
| 01***16 | Washer,Radio Controlled Slag Handling | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Under Carriage : Track Guard
| 01***25 | Capscrew | 24 |
| 01***35 | Capscrew - M14 (1)/(2) | 16 |
| 01***42 | Washer,Spring (For Pedal Steering), Washer-Spring | 40 |
Komatsu : D21a-8e0(S/N 90001-Up) : Under Carriage : Track Guard (Rubber Shoe Spec.)
| 01***30 | Bolt - M14 X 30lg | 16 |
| 01***45 | Washer,(For Quick Shift) (Mitsubishi) | 16 |
| 07***18 | Plug,(With Extinguisher) (D31p) | 16 |
Komatsu : D21a-8e0(S/N 90001-Up) : Under Carriage : Track Guard (With Mono Block Type Track Roller Guard)
| 01***25 | Capscrew | 36 |
| 01***35 | Capscrew - M14 (1)/(2) | 16 |
| 01***85 | Bolt | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Under Carriage : Track Roller
| 01***50 | Capscrew | 40 |
| 01***42 | Washer,Spring (For Pedal Steering), Washer-Spring | 40 |
| 07***38 | Ring, Seal - Between Sections | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Under Carriage : Track Shoe (Lubricate Type) (Single Grouser With Hole) (300mm Wide)
| 07***22 | Plug,Large | 74 |
| 07***21 | Plug,(Small) | 74 |
| 10***23 | Track Shoe Ass'Y | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Under Carriage : Track Shoe (Lubricate Type) (Single Grouser) (300mm Wide)
| 07***22 | Plug,Large | 74 |
| 07***21 | Plug,(Small) | 74 |
| 10***02 | Track Shoe Ass'Y | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Under Carriage : Track Shoe (Lubricate Type) (Single Grouser) (340mm Wide)
| 07***22 | Plug,Large | 74 |
| 07***21 | Plug,(Small) | 74 |
| 10***12 | Track Shoe Ass'Y | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Under Carriage : Track Shoe (Lubricate Type) (Triple Grouser With Long Hole) (300mm Wide)
| 07***22 | Plug,Large | 74 |
| 07***21 | Plug,(Small) | 74 |
| 10***21 | Link,Track? L.H | 72 |
Komatsu : D21a-8e0(S/N 90001-Up) : Under Carriage : Track Shoe (Master Pin Type) (Flat Type With Hole) (300mm Wide)
| 10***21 | Link,Track? L.H | 74 |
| 10***31 | Link,Track? R.H | 74 |
| 10***44 | Bushing,Regular | 72 |
Komatsu : D21a-8e0(S/N 90001-Up) : Under Carriage : Track Shoe (Master Pin Type) (Single Grouser With Hole) (300mm Wide)
| 10***09 | Track Shoe Ass'Y | 1 |
| 10***21 | Link,Track? L.H | 74 |
| 10***31 | Link,Track? R.H | 74 |
Komatsu : D21a-8e0(S/N 90001-Up) : Under Carriage : Track Shoe (Master Pin Type) (Single Grouser With Hole) (340mm Wide) (Trimming)
| 10***21 | Link,Track? L.H | 78 |
| 10***31 | Link,Track? R.H | 78 |
| 10***44 | Bushing,Regular | 76 |
Komatsu : D21a-8e0(S/N 90001-Up) : Under Carriage : Track Shoe (Master Pin Type) (Single Grouser) (300mm Wide)
| 10***09 | Track Shoe Ass'Y | 1 |
| 10***21 | Link,Track? L.H | 74 |
| 10***31 | Link,Track? R.H | 74 |
Komatsu : D21a-8e0(S/N 90001-Up) : Under Carriage : Track Shoe (Master Pin Type) (Single Grouser) (340mm Wide)
| 10***09 | Track Shoe Ass'Y | 1 |
| 10***21 | Link,Track? L.H | 74 |
| 10***31 | Link,Track? R.H | 74 |
Komatsu : D21a-8e0(S/N 90001-Up) : Under Carriage : Track Shoe (Master Pin Type) (Triple Grouser With Long Hole) (300 Mm Wide)
| 10***21 | Link,Track? L.H | 74 |
| 10***31 | Link,Track? R.H | 74 |
| 10***44 | Bushing,Regular | 72 |
Komatsu : D21a-8e0(S/N 90001-Up) : Under Carriage : Track Shoe (Short-Pitch Rubber Type) (300mm Wide)
| 10***10 | Shoe,Rubber | 2 |
Work Equipment
Komatsu : D21a-8e0(S/N 90001-Up) : Work Equipment : 3-Point Hitch (Bracket And Arm)
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***40 | Bolt | 8 |
Komatsu : D21a-8e0(S/N 90001-Up) : Work Equipment : 3-Point Hitch (Lifting Rod)
| 01***16 | Bolt - Box Mounting | 2 |
| 01***25 | Bolt,(Rear Attachment Less) | 6 |
| 01***16 | Washer,Spring | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Work Equipment : 3-Point Hitch (Lower Link)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***19 | Nut - M24 | 4 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Work Equipment : 3-Point Hitch (Top Link)
| 01***08 | Screw - Clip Mounting | 1 |
| 02***06 | Hose | 4 |
| 04***20 | Pin,Cotter (For Chinese) | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Work Equipment : Angle Cylider (For Pat)
| (7***0) | Cylinder Ass'Y | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Work Equipment : Arm And Brace (Center Brace And Lift Cylinder Pin) (For Pat)
| 01***20 | Bolt,(For Mono Lever Steering) | 8 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 12 |
Komatsu : D21a-8e0(S/N 90001-Up) : Work Equipment : Arm And Brace (Tilt Cylinder Pin And Angle Cylinder Pin)(For Pat)
| 01***20 | Bolt,(For Mono Lever Steering) | 10 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 10 |
| 04***10 | Lock,Plate | 3 |
Komatsu : D21a-8e0(S/N 90001-Up) : Work Equipment : Blade (For Pat)
| 02***40 | Bolt,(Pl) | 18 |
| 02***13 | Nut,(Pl) | 18 |
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
Komatsu : D21a-8e0(S/N 90001-Up) : Work Equipment : Blade Lift Cylinder (For Pat)
| (7***0) | Cylinder Group,Lift? L.H | 1 |
| (7***0) | Cylinder Group,Lift? R.H | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Work Equipment : Dozer Frame (For Pat)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***60 | Bolt,Rear | 6 |
| 01***90 | Bolt (Kit) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Work Equipment : Dozer Oil Line (Angle Cylinder Line)
| 01***35 | Bolt,(F4320-52a0 -5 ) | 3 |
| 01***32 | Washer,(With Auto Emergency Steering) | 3 |
| 02***10 | Hose | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Work Equipment : Dozer Oil Line (Cover)
| 01***20 | Bolt,(For Mono Lever Steering) | 9 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
| 01***70 | Bolt - Bracket And Oil Inlet Tubemounting | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Work Equipment : Dozer Oil Line (Tilt Cylinder Line)
| 01***45 | Screw | 1 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 6 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Work Equipment : Drawbar
| 01***40 | Bolt | 2 |
| 01***45 | Washer,(Without R.O.P.S.) | 2 |
| 10***12 | Drawbar | 1 |
Komatsu : D21a-8e0(S/N 90001-Up) : Work Equipment : Swing Drawbar
| 01***45 | Bolt | 10 |
| 01***45 | Washer,(Without R.O.P.S.) | 10 |
| 04***12 | Pin,Cotter (For Ripper) | 2 |
Komatsu : D21a-8e0(S/N 90001-Up) : Work Equipment : Swing Drawber (For 3-Point Hitch)
| 01***35 | Capscrew - M14 (1)/(2) | 8 |
| 01***40 | Capscrew | 4 |
| 01***42 | Washer,Spring (For Pedal Steering), Washer-Spring | 12 |
Komatsu : D21a-8e0(S/N 90001-Up) : Work Equipment : Tilt Cylinder (For Pat)
| (7***0) | Cylinder Ass'Y | 1 |
D21A-8E0(S/N 90001-UP) serial number reference
The PIN plate is located on the front frame casting, typically near the operator's left side. To read the prefix, identify the first three characters of the model designation preceding the dash-number and serial sequence.
| Prefix | Identifies | Notes |
|---|---|---|
| D21A | D21A-8E0 (S/N 90001-UP) | Standard configuration. Uses Komatsu 4D94LE-2 engine. Features HYDROSHIFT transmission with damper and planetary gear packs. Operating weight: 3710 kg (8,180 lb). Engine power: 32.3 kW (43.4 HP) @ 2450 rpm. |
| D21P | D21P-8E0 (S/N 90001-UP) | LGP/Wide-track configuration. Operating weight: 4100 kg (9,040 lb). Uses Komatsu 4D94LE-2 engine. |
Frequently asked questions
What engine is installed in the D21A-8E0?
The machine is powered by a Komatsu 4D94LE-2, a 4-cylinder diesel engine with a displacement of 186 cu in (3.1 L).
What is the operating weight of this model?
The D21A-8E/0 has an operating weight of approximately 8,179.2 lb (3,710 kg).
What replaced the D21A-8E0?
Specific successor model names are not documented in the provided technical literature; however, it is part of the evolving D21 series lineage.
What D21A-8E0(S/N 90001-UP) owners discuss
What are the common causes of steering failure or loss of power during turns on the D21A-/8E0?
Operators frequently report slipping steering clutches, which results in an inability to turn or a noticeable loss of power. Specifically, if the right track moves freely without engaging, the steering clutch assembly must be inspected. Hydraulic control valve failures are also known to affect track engagement functionality.
What engine model is used in the Komatsu D21A-8E0 (S/N 90001-UP), and what are its primary performance specs?
The machine utilizes the Komatsu 4D94LE-2 engine. This 4-cylinder engine has a displacement of 186 cu in (3.1 L) and produces 43.3 hp (32.3 kW) at 2450 rpm, with a maximum torque of 128.4 lb ft (174 Nm) measured at 1300 rpm.
What maintenance routine is recommended to ensure long-term reliability and prevent undercarriage or powertrain issues?
Regular servicing every 250 hours is recommended. For the undercarriage, it is critical to keep tracks and components clean after use. When performing hydraulic repairs, such as servicing pumps or control valves, carry out oil cleaning to remove sludge or contaminants from the hydraulic circuit.
What are the standard undercarriage specifications for this machine type?
The standard configuration includes 37 shoes per side with a 11.82 in (300 mm) shoe size. The assembly consists of 5 track rollers and 1 carrier roller per side, resulting in a ground pressure of approximately 4.41 psi (30.41 kPa).
What fluid capacities should be noted for engine and hydraulic maintenance?
The engine oil capacity is 1.8 gal (6.6 L). The hydraulic fluid capacity is 5.6 gal (21 L). For the cooling system, the capacity is 2.7 gal (10 L), and the final drives require 1.6 gal (6 L).
What should be checked when purchasing a used Komatsu D21A-8E0 to verify machine history and integrity?
Verify the serial number on the front frame casting against the riveted plate; a mismatch is a primary signal of stolen equipment. For machines built since approximately 2008, use telematics systems to pull a health report and compare dashboard hours against recorded logs to detect potential hour-meter rollback. Additionally, check for any discrepancies between the chassis-engraved serial and the factory plate.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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