Komatsumotor grader(no series)
Komatsu GD530A/AW-2B/2C(W/S6D102E S/N 203163-Up)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu GD530A/AW-2B/2C is a heavy-duty motor grader designed for large-scale road construction and maintenance. Powered by the S6D102E-1 diesel engine, this machine delivers robust torque for demanding grading tasks. The model series includes standard GD530A configurations and all-wheel-drive AW variants, with the 2B and 2C sub-models covering serial numbers 203163 and up. Operating weights vary by configuration, typically ranging from 23,000 to 26,000 kg (50,700 to 57,300 lb). The GD530A lineage succeeded the GD530A-1 series and was later followed by the GD530A-2EY emission-compliant models. Configurations offered include standard blade, biased blade, and various circle drive options to suit different terrain and material types.
Across the GD530A generation, Komatsu refined the powertrain efficiency and hydraulic response to improve fuel economy and grading precision. The transition from the S6D102 to the S6D102E engine marked a shift toward stricter emissions compliance without sacrificing power output. In the used and parts market, the GD530A/AW-2B/2C remains significant due to its widespread deployment in infrastructure projects and the availability of robust aftermarket support for its S6D102E engine and transmission components. Its modular design allows for easier engine swaps and undercarriage replacements, keeping it a cost-effective option for fleet managers compared to newer, more complex emission-controlled models.
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 GD530A/AW-2B/2C(W/S6D102E S/N 203163-Up) specifications
Engine
| Model | S6D102E-1 |
| Number of Cylinders | 6 |
| Displacement | 358.9 cu in (5.88 L) |
| Net Power | 143.5 hp (107 kW) @ 2500 rpm |
Weights
| Standard Operating Weight | 30,247.5 lb (13,718 kg) |
Dimensions
| Overall Length | 27.67 ft (8.43 m) |
| Width Over Tires | 7.92 ft (2.41 m) |
| Wheelbase | 19.42 ft (5.92 m) |
| Tandem Axle Wheelbase | 5.09 ft (1.55 m) |
| Height to Top of Isomount Cab | 10.17 ft (3.10 m) |
| Rear Ground Clearance | 0.92 ft (0.28 m) |
| Front Axle Ground Clearance | 1 ft (0.30 m) |
| Blade Base Width | 8.17 ft (2.49 m) |
| Moldboard Width | 12.1 ft (3.69 m) |
| Moldboard Height | 26 in (0.66 m) |
Performance
| Max Speed - Forward | 25.5 mph (41.0 km/h) |
| Max Speed - Reverse | 13.7 mph (22.0 km/h) |
| Steering Articulation Angle | 20 degrees |
| Transmission Gears (Forward) | 6 |
Service capacities (summary)
| Fuel Capacity | 89.9 gal (340 L) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
Komatsu GD530A/AW-2B/2C(W/S6D102E S/N 203163-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 GD530A/AW-2B/2C(W/S6D102E S/N 203163-Up) beyond the schedule
Predictive Maintenance & Fluid Analysis
Monitor S6D102E engine oil for soot and fuel dilution every 250 hours. Sample hydraulic oil from the main tank to check for particle count and water ingress, targeting ISO 18/16/13 cleanliness. Analyze transmission and final drive oils for gear wear metals. Track coolant concentration using a refractometer to prevent corrosion in the aluminum heat exchangers. Use Komatsu KOWA analysis to detect early signs of piston ring or bearing wear before performance drops occur.
Corrective & Common Repairs
Address S6D102E injector leaks by checking valve cover gaskets and injector O-rings. Replace worn circle drive pinion teeth and gear shoes to prevent binding. Repair hydraulic cylinder rod scoring on the blade lift and moldboard tilt cylinders. Fix AWD pump relief valve leaks that cause loss of traction in aggressive mode. Replace steering and brake accumulator bladder seals if pedal travel increases or pressure drops rapidly.
Overhaul & Rebuild Points
Plan S6D102E engine overhaul at 10,000–12,000 hours, focusing on piston rings, cylinder liners, and turbocharger bearings. Rebuild the transmission clutch packs when slip exceeds 15% or pressure drops below spec. Overhaul the final drive planetary gears and bearings if noise or oil contamination indicates failure. Replace the circle reverse motor slip clutch when slippage prevents proper circle rotation. Inspect the articulation joint pins and bushings for wear to prevent chassis misalignment.
Seasonal & Environment Servicing
In cold climates, switch to low-viscosity Komatsu EO engine oil and use winter-grade coolant to prevent block freezing. Inspect the air intake heater operation before winter starts. In dusty environments, service the air cleaner inner element every 100 hours and check the pre-cleaner daily. Use high-temperature hydraulic oil in hot conditions to maintain viscosity. Flush the radiator and oil cooler cores more frequently in dusty areas to prevent overheating of the S6D102E engine and transmission.
GD530A/AW-2B/2C(W/S6D102E S/N 203163-Up) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 1298 058 H1 | Element, Outer Air Cleaner | Air intake service | Check fitment → |
| 1281 326 H91 | Filter, All Wheel Drive Hydraulic Oil | Hydraulic service | Check fitment → |
| 1281 327 H1 | Element, Hydraulic Oil Filter (9.5 Inches Long) | Hydraulic service | Check fitment → |
| 1266 752 H91 | Filter, All-Wheel Drive Hydraulic Oil | Hydraulic service | Check fitment → |
| 1266 751 H2 | Element, Converter & Differential Oil Filter | Lubrication service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
GD530A/AW-2B/2C(W/S6D102E S/N 203163-Up) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| CA115 | Engine crankshaft speed sensor failure | Faulty crankshaft speed sensor, damaged wiring harness, or corroded connector at the sensor pin. | Inspect the sensor wiring and connector for damage or corrosion. Test sensor voltage output; replace the sensor if faulty. |
| CA441 | Battery voltage too low | Weak or discharged battery, failing alternator, or loose/corroded battery cables. | Check battery charge state and terminal connections. Test alternator output voltage under load. |
| CA442 | Battery voltage too high | Faulty voltage regulator in the alternator or a short in the charging circuit. | Test alternator output voltage. If voltage exceeds specification with engine running, replace the alternator or regulator. |
| CA122 | Intake air pressure sensor feedback value too high | Restricted air intake, faulty intake air pressure sensor, or clogged air filter element. | Inspect the air filter and intake ducting for blockages. Test the sensor signal voltage against specifications. |
| CA123 | Intake air pressure sensor feedback value too low | Air leak in the intake system, disconnected hose, or faulty intake air pressure sensor. | Check all intake hoses and connections for leaks or disconnections. Verify sensor operation. |
| CA451 | Common rail pressure sensor feedback value too high | Faulty rail pressure sensor, actual overpressure condition, or restricted fuel return line. | Verify actual rail pressure with a mechanical gauge. Inspect the sensor and its wiring; replace if signal is inaccurate. |
| CA452 | Common rail pressure sensor feedback value too low | Fuel leak in the high-pressure circuit, faulty fuel pump, or defective pressure sensor. | Check for fuel leaks at injector lines and rail connections. Test sensor signal and fuel pump performance. |
| CA234 | Engine overspeed | Throttle calibration error, operator misuse, or malfunctioning governor/speed control system. | Verify throttle pedal calibration and governor operation. Check for mechanical binding in the throttle linkage. |
| AA10NX | Air cleaner clogging | Dirty or blocked air filter element, indicating maintenance is overdue. | Inspect the air filter indicator. Replace the air filter element if clogged or according to service intervals. |
| CA111 | Internal engine controller fault | Critical failure within the Engine Control Module (ECM) or loss of internal power/data. | Check ECM power and ground connections. If connections are secure, the ECM may require replacement or reprogramming. |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
GD530A/AW-2B/2C(W/S6D102E S/N 203163-Up) attachments & work tools
Standard Blade Configurations
The GD530A/AW-2B/2C (S/N 203163-Up) utilizes a main frame designated as 530 2B for R.H. and L.H. 90-degree blade suspension and 830 B for R.H. biased blade suspension. These configurations apply to serial numbers 203163 through the OEM part reference.
Blade Suspension & Mounting
The machine employs a 90-degree blade suspension system for both right-hand and left-hand configurations. The drawbar side shift actuator lines for the 90-degree blade suspension are applicable up to serial number the OEM part reference.
Engine & Powertrain
This specific serial range (203163-Up) is equipped with the S6D102E-1 engine. The powertrain includes a transmission power shift system and an all-wheel-drive (AWD) circuit with normal and aggressive modes.
Hydraulic System Components
The hydraulic system features a main system pump, steering and brake pump, and an AWD hydraulic motor. Control valve manifolds include sections for scarifier, right and left blade lift, float valve, blade shift, circle reverse motor, and moldboard tilt.
Steering & Drive Systems
Steering is managed by a Char-Lynn Orbitrol unit. The drive system includes tandem cases with nonplanetary or planetary final drives, and front axles available in non-AWD or AWD configurations.
Braking & Differential
The machine uses a Mico parking brake and Mico brake valve. Differential options include no-spin differential case assembly and lock/unlock differential case assembly with associated bearing quills.
Circle & Blade Control
The circle assembly includes a reverse motor and slip clutch. Adjustments for the circle involve four shoes with vertical and pinion adjustments. The circle side shift and leaning wheel mechanisms are also part of the standard control layout.
Fluid Specifications
Recommended fluids include Komatsu EO or TO engine oil, Komatsu AXO or HO hydraulic oil, and Komatsu TDTO or ELC coolant. Diesel fuel specifications and supplemental coolant additives are also defined in the operation manual.
All GD530A/AW-2B/2C(W/S6D102E S/N 203163-Up) assemblies by section
Every catalogued assembly group for the Komatsu GD530A/AW-2B/2C(W/S6D102E S/N 203163-Up). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Brakes
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Brakes : Brake Valve S/N 203163-203592
| 14***91 | Valve, Brake | 1 |
| 14***H1 | Boot | 1 |
| 14***91 | Kit, Brake Valve Seal | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Brakes : Brake Valve S/N 203593 And Up
| 14***H1 | Boot | 1 |
| 14***91 | Valve, Brake | 1 |
| 14***91 | Kit, Brake Valve Seal | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Brakes : Brakes
| 14***92 | Disc, Friction | 2 |
| 14***H3 | Piston | 2 |
| 14***H2 | Seal, Outer Piston | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Brakes : Hydraulic Brake Lines Machines With All Wheel Drive
| 12***H1 | Coupling, Quick Disconnect | 1 |
| 12***H1 | Hose | 2 |
| 15***44 | Cap, Dust | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Brakes : Hydraulic Brake Lines Machines Without All Wheel Drive
| 12***H1 | Coupling, Quick Disconnect | 1 |
| 12***H1 | Hose | 2 |
| 15***44 | Cap, Dust | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Brakes : Parking Brake Caliper S/N 203163-203506
| 12***H1 | Connector | 1 |
| 12***H1 | Screw, Set | 1 |
| 12***H1 | Rod, Push | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Brakes : Parking Brake Caliper S/N 203507 And Up
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Brakes : Parking Brake Lines
| 12***H1 | Hose | 1 |
| 36***R1 | O-Ring | 2 |
| 94***00 | Connector, Str O-Ring To 37? Flare | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Brakes : Parking Brake S/N 203163-203506
| 12***H2 | Disk, Parking Brake | 1 |
| 14***H1 | Bracket, Parking Brake | 1 |
| 24***R1 | Bolt | 4 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Brakes : Parking Brake S/N 203507 And Up
| 12***H2 | Disk, Parking Brake | 1 |
| 14***H1 | Bracket, Parking Brake | 1 |
| 24***R1 | Bolt - Baffle To Rear Frame | 8 |
Cooling
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Cooling : Converter Oil Cooler Lines
| 13***55 | Clamp, Cable - Main Harness | 2 |
| 14***H1 | Hose | 1 |
| 14***H1 | Hose | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Cooling : Engine Fan And Shroud
| 12***14 | Washer, Lock | 8 |
| 12***H1 | Guard, Finger | 2 |
| 14***H1 | Spacer, Fan | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Cooling : Radiator Connections
| 08***34 | Tie, Cable | 1 |
| 14***H1 | Hose, Lower Radiator | 1 |
| 14***H2 | Hose, Upper Radiator | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Cooling : Radiator Grille Screen
| 14***91 | Screen, Radiator Grille | 1 |
| 14***91 | Screen Installation, Radiator Grille | 1 |
| 14***91 | Snaps, Screw-In | 22 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Cooling : Radiator Mounting
| 11***77 | Washer, Special | 2 |
| 12***13 | Mount, Rubber | 2 |
| 14***H1 | Stud | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Cooling : Radiator Shutter
| 14***91 | Spring | 1 |
| 14***91 | Shutter Assembly | 1 |
| 14***H1 | Screw | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Cooling : Radiator Shutter Installation
| 10***36 | Hose - 60 In | 1 |
| 11***60 | Hose - 60 In | 1 |
| 12***14 | Washer, Lock | 10 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Cooling : Radiator/Oil Cooler
| 12***14 | Washer, Lock | 88 |
| 14***H1 | Glass, Sight | 1 |
| 14***H1 | Clip, Hose | 2 |
Drive Train
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Charge Pump
| 12***91 | Pump Assembly, Charge | 1 |
| 12***H1 | Screw, Set | 1 |
| 12***H1 | Washer, Star | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Clutch Pack - 1 And 5
| 12***60 | Ring, Retaining | 2 |
| 12***H1 | Ring, Seal | 3 |
| 12***H1 | Ring, Seal | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Clutch Pack - 2 And 6
| 10***71 | Ring, Retaining | 2 |
| 12***60 | Ring, Retaining | 2 |
| 12***H1 | Ring, Seal | 3 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Clutch Pack - 3 And 4
| 10***71 | Ring, Retaining | 2 |
| 12***60 | Ring, Retaining | 2 |
| 12***H1 | Ring, Seal | 3 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Converter Oil Filter
| 12***82 | Washer, Lock | 4 |
| 12***91 | Indicator Assembly | 1 |
| 12***H3 | Bracket, Transmission Filter | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Converter Oil Filter Lines
| 14***41 | Hose | 1 |
| 15***91 | Elbow, Reducer - 90? | 3 |
| 29***R1 | O-Ring | 4 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Declutch Pedal
| 10***96 | Adhesive, Rubber - 1 Qt. Can | 0 |
| 12***45 | Bearing, Teflon | 2 |
| 12***H2 | Washer, Nylon Bearing | 0 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Differential Oil Filter
| 12***82 | Washer, Lock | 4 |
| 12***91 | Indicator Assembly | 1 |
| 12***H2 | Bracket, Filter Mounting | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Drive Line
| 12***51 | Dipstick | 1 |
| 14***H1 | Tube, Dipstick | 1 |
| 14***H1 | Sleeve | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Drive Shaft
| 10***54 | Fitting, Grease | 1 |
| 10***61 | Fitting, Grease | 1 |
| 12***91 | Kit, Spider And Bearing | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Drive Shaft - 7c
| 10***54 | Fitting, Grease | 1 |
| 10***61 | Fitting, Grease | 1 |
| 11***21 | Washer | 8 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Final Drive And Tandems Machines With Planetary
| 12***92 | Final Drive - No-Spin Differential (See Fig. F5550-01a0) | 1 |
| 14***91 | Final Drive Assembly - Lock/Unlock Differential | 1 |
| 15***06 | Gasket, Liquid - 300 Ml Cartridge | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Final Drive And Tandems Machines Without Planetary
| 12***92 | Final Drive - No-Spin Differential (See Fig. F5550-01a0) | 1 |
| 14***92 | Final Drive - Lock/Unlock Differential (See Fig. F5550-01a0) | 1 |
| 15***06 | Gasket, Liquid - 300 Ml Cartridge | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Final Drive Machines With Planetary
| 10***61 | Fitting, Grease | 2 |
| 12***93 | Housing, Final Drive - R.H | 1 |
| 12***H1 | Spacer, Planetary | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Final Drive Machines Without Planetary
| 10***61 | Fitting, Grease | 2 |
| 12***H1 | Ring, Retaining | 2 |
| 12***H2 | Disk, Parking Brake | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Front Cover
| 12***H1 | Gasket Eliminator 515 - 50 Ml Tube | 1 |
| 12***H1 | Sleeve, Bore | 3 |
| 12***H1 | Cover, Front | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Input Quill Assembly
| 10***11 | Pin, Cotter | 1 |
| 10***91 | Bearing Assembly | 1 |
| 10***91 | Bearing, Cone | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Lock/Unlock Differential Bearing Quills
| 13***R1 | Cone, Bearing | 1 |
| 14***H1 | Bolt | 12 |
| 14***H1 | Quill | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Lock/Unlock Differential Case Assembly
| 14***91 | Seal, Lip | 1 |
| 14***H1 | Bushing, Bleeder | 2 |
| 14***H1 | Screw, Bleed | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Lock/Unlock Differential Case Oil Lines
| 14***H1 | Adaptor | 1 |
| 14***91 | Differential, Standard - Lock/Unlock | 1 |
| 14***H1 | Line, Oil | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Lock/Unlock Standard Differential
| 14***91 | Gear Set, Pinion And Ring | 1 |
| 14***H1 | Screw | 12 |
| 14***H1 | Washer | 12 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Main Case
| 10***39 | Washer. Flat | 4 |
| 12***80 | Washer, Lock - Ground Screw | 4 |
| 13***61 | Case, Main | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Nospin Differential
| 14***91 | Spider Assembly | 1 |
| 14***91 | Clutch Assembly | 2 |
| 14***H1 | Stop | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Nospin Differential Assembly
| 14***H1 | Cover | 1 |
| 14***H1 | Housing | 1 |
| 14***91 | Gear Set, Pinion And Ring | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Nospin Differential Bearing Quills
| 13***91 | Bearing Assembly | 1 |
| 13***91 | Bearing, Cone | 1 |
| 14***83 | Quill | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Nospin Differential Case Assembly
| 14***91 | Seal, Lip | 1 |
| 14***H1 | Bushing, Bleeder | 2 |
| 14***H1 | Screw, Bleed | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Output Shaft
| 10***17 | Cone, Bearing | 2 |
| 13***56 | Shaft, Output | 1 |
| 13***57 | Gear, Output | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Planetary Assembly And Ring Gear
| 12***H1 | Washer, Retaining | 1 |
| 12***H1 | Washer, Thrust | 1 |
| 12***93 | Assembly, Final Drive | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Tandem Drive Machines With Planetary Final Drive
| 12***53 | Retainer, Bearing | 4 |
| 12***H1 | Adapter, Pipe | 2 |
| 12***H1 | Seal, Oil | 4 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Tandem Drive Machines Without Planetary Final Drive
| 12***53 | Retainer, Bearing | 4 |
| 12***H1 | Adapter, Pipe | 2 |
| 12***H1 | Seal, Oil | 4 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Torque Converter
| 12***H1 | Hub, Impeller | 1 |
| 12***H1 | Stator | 1 |
| 12***H1 | Turbine | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Transmission And Torque Converter
| 11***59 | O-Ring | 1 |
| 12***84 | Washer, Lock - 1/2 In | 4 |
| 12***H1 | Plate, Drive | 3 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Drive Train : Transmission Control Valve
| 12***H1 | Ball | 1 |
| 12***H1 | Spring, Accumulator - Outer | 1 |
| 12***H1 | Spring, Accumulator - Inner | 1 |
E0-000
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : E0-000 : Accessories
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : E0-000 : Cooling System
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : E0-000 : Cylinder Block
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : E0-000 : Cylinder Head
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : E0-000 : Electrical System
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : E0-000 : Engine Mounting
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : E0-000 : Fuel System
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : E0-000 : Gasket Sets And Repair Kits
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : E0-000 : Lubricating Oil System
Electrical
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : 5 A Converter Installation 24 V To 12 V
| 11***C1 | Bar, Buss - 2 Hole | 1 |
| 12***96 | Washer, Terminal - C.E. Frame | 2 |
| 14***H1 | Bracket | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : Air Conditioner/Heater Electrical Wiring
| 14***01 | Connector, 3-Way | 1 |
| 14***H1 | Diode Assembly | 1 |
| 14***H1 | Resistor Assembly | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : All Wheel Drive Electrical System
| 12***H1 | Wiring Harness, Rear Wheel Sensor | 1 |
| 12***H1 | Sensor - R.H. Only (See Pg 08-018) | 1 |
| 12***H2 | Controller, Electronic | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : All Wheel Drive Wiring Diagram
| 11***C1 | Bar, Buss - 2 Hole | 1 |
| 12***H1 | Wiring Harness, Rear Wheel Sensor | 1 |
| 12***H1 | Switch, Lower Front Wiper | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : Alternator - 50 A Model 20si
| 12***H1 | Bushing, Mounting Hinge | 1 |
| 12***H1 | Bolt, Field Coil And Support | 4 |
| 12***H1 | Bearing, Ball | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : Alternator - 50 A Model 23si
| 12***H1 | Bearing, Ball | 1 |
| 12***H1 | Regulator And Resistor Assembly | 1 |
| 13***H1 | Rectifier Bridge Assembly | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : Alternator - 80 A Model 26si
| 12***H1 | Screw, Field Coil Lead To Brush Holder | 1 |
| 12***H1 | Plate, Rectifier End | 1 |
| 12***H1 | Cover, Rectifier End | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : Alternator - 80 A Model 30si
| 12***R1 | Washer, Lock - Ground Screw | 1 |
| 12***H1 | Bushing, Mounting Hinge | 1 |
| 12***H1 | Plug, Bearing Well | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : Alternator Mounting 80 Amp
| 12***H1 | Nut, Hex - Tighten To 70-80 Ft/Lbs Wet | 1 |
| 12***H1 | Bolt - Tighten To 16 Ft/Lbs Wet | 4 |
| 12***H1 | Bolt - Tighten To 70 Ft/Lbs Wet | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : Articulation Indicator
| 12***61 | Nut, Hex - No. 10-24 | 2 |
| 12***41 | Washer, Lock | 3 |
| 14***99 | Sending Unit, Articulation Indicator | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : Backup Alarm
| 11***86 | Horn, Backup | 1 |
| 12***H1 | Horn, Backup | 1 |
| 14***H1 | Lamp - Stop, Turn, Tail | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : Battery And Connections
| 10***81 | Rod, Battery Clamp | 3 |
| 12***82 | Washer, Lock | 3 |
| 12***H1 | Battery - Warm Start | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : Blade Flood Light Installation Halogen Lamps
| 11***C1 | Bar, Buss - 2 Hole | 1 |
| 12***14 | Washer, Lock | 2 |
| 12***17 | Washer, Shunt Lead To Switch Attaching | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : Cranking Motor
| 12***H1 | Insulator, Field Terminal - Inside Frame | 1 |
| 12***H1 | Insulator, Field Terminal - Outside Frame | 1 |
| 12***H1 | Armature | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : Engine Wiring
| 10***99 | Stud, Weld | 10 |
| 11***C2 | Switch, Engine Water Temperature | 1 |
| 12***92 | Washer, Flat - 0.25 | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : Flashing Light Amber
| 11***H1 | Bar, Buss | 1 |
| 11***C1 | Cable - Breaker To Flasher | 1 |
| 12***14 | Washer, Lock | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : Flashing Light Amber With Knock Down Bracket
| 11***C1 | Cable - Breaker To Flasher | 1 |
| 12***14 | Washer, Lock | 1 |
| 12***76 | Nut, Hex | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : Front Bar Headlight Installation Halogen Lamps
| 11***C1 | Bar, Buss - 2 Hole | 1 |
| 11***C1 | Cable - Switch To Breaker | 1 |
| 12***17 | Washer, Shunt Lead To Switch Attaching | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : Front Bar Hi-Low Beam Headlight Installation Halogen Lamps
| 11***C1 | Bar, Buss - 2 Hole | 1 |
| 12***17 | Washer, Shunt Lead To Switch Attaching | 2 |
| 12***80 | Washer, Lock - Ground Screw | 3 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : Front Bar Hi-Low Beam Headlight Installation Sealed Beam Halogen Lamps
| 11***C1 | Bar, Buss - 2 Hole | 1 |
| 12***17 | Washer, Shunt Lead To Switch Attaching | 2 |
| 12***80 | Washer, Lock - Ground Screw | 3 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : Horn
| 13***H1 | Horn | 1 |
| 13***H1 | Bracket, Horn | 1 |
| 26***R1 | Nut, Lock - Use With 1/4 In. Bolts | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : Knock Down Bracket Light Mount
| 11***H1 | Bar, Buss | 1 |
| 11***C1 | Cable - Switch To Breaker | 1 |
| 11***64 | Grommet | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : License Plate Bracket
| 10***01 | Light, License Plate | 1 |
| 12***75 | Nut - Mounting | 2 |
| 12***77 | Nut, Mounting - 3/8-16 Hex | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : Master Disconnect Switch
| 11***56 | Key | 2 |
| 12***H1 | Battery - Warm Start | 2 |
| 12***H1 | Battery, Dry - Cold Start | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : Radiator Shutter Wiring
| 14***H3 | Alarmstat | 1 |
| 14***91 | Solenoid Valve, 3-Way | 1 |
| 14***92 | Wiring Harness, Radiator Shutter | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : Rear Work Light Installation
| 11***C1 | Bar, Buss - 2 Hole | 1 |
| 12***17 | Washer, Shunt Lead To Switch Attaching | 2 |
| 12***14 | Nut, Hex | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : Sending Units
| 10***39 | Washer. Flat | 2 |
| 11***C2 | Switch, Engine Water Temperature | 1 |
| 12***80 | Washer, Lock - Ground Screw | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : Single Beam Halogen Lamp
| 12***H1 | Pin, Male | 2 |
| 12***H1 | Shroud, Female | 1 |
| 12***H1 | Seal, Terminal | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : Starting/Charging Receptacle
| 14*** H | Bolt - Tighten To 43 ?3 Ft/Lbs Wet | 6 |
| 14***91 | Starting/Charging Receptacle | 1 |
| 25***R1 | Washer, Flat - 3/8 In | 6 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : Steering Console Wiring
| 12***R1 | Washer, Lock - Ground Screw | 2 |
| 14***91 | Console Assembly, Steering | 1 |
| 18***22 | Bolt, 1/4nc X 1 | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : Strobe Light Amber
| 11***H1 | Bar, Buss | 1 |
| 11***C1 | Cable - Switch To Breaker | 1 |
| 12***17 | Washer, Shunt Lead To Switch Attaching | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : Turn Signal Lamp
| 11***C1 | Connector, Male | 1 |
| 12***91 | Lamp, Turn Signal | 1 |
| 12***91 | Lamp Assembly, Turn Signal | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Electrical : Under Cab Wiring
| 12***82 | Washer, Lock | 1 |
| 12***91 | Diode, Parking Brake | 1 |
| 12***H1 | Cable, Ground | 1 |
Frame
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Frame : Articulation Joint
| 10***91 | Shim - 0.020 In. (0.508 mm) | 1 |
| 10***95 | Shim - 0.005 In. (0.127 mm) | 3 |
| 10***96 | Shim - 0.007 In. (0.178 mm) | 3 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Frame : Control Valve Guard
| 14***H1 | Plate, Guard | 1 |
| 14***91 | Guard Installation, Control Valve | 1 |
| 24***R1 | Bolt, Muffler To Bracket Mounting -1/2 Nc X 1 1/2 In | 4 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Frame : Front Hitch With Pins
| 14***H1 | Pin, Hitch | 1 |
| 14***H1 | Pin, Self-Locking | 1 |
| 14***91 | Plate Weldment, Hitch | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Frame : Lifting Eyes
| 14***H1 | Bar, Lift-Eye | 4 |
| 14***91 | Lifting Eyes | 1 |
| 15***20 | Decal | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Frame : Main Frame 530 2b - R.H. And L.H. 90 Degrees Blade Suspension - S/N 203163-203958
| 13***45 | Pin, Hitch | 1 |
| 14***71 | Protector | 0 |
| 14***92 | Retainer Assembly, Front Axle | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Frame : Main Frame 530 2b - R.H. And L.H. 90 Degrees Blade Suspension - S/N 203959 And Up
| 04***10 | Clamp | 2 |
| 04***08 | Clip | 1 |
| 04***10 | Clip,(For North America) | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Frame : Main Frame 530 2c - R.H. And L.H. 90 Degrees Blade Suspension - S/N 203163-203958
| 13***45 | Pin, Hitch | 1 |
| 14***92 | Retainer Assembly, Front Axle | 1 |
| 14***95 | Frame Weldment - Rear | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Frame : Main Frame 530 2c - R.H. And L.H. 90 Degrees Blade Suspension - S/N 203959 And Up
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Frame : Main Frame 830 B - R.H. Biased Blade Suspension - S/N 203163-203958
| 13***45 | Pin, Hitch | 1 |
| 14***92 | Retainer Assembly, Front Axle | 1 |
| 14***94 | Frame Weldment - Rear | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Frame : Main Frame 830 B - R.H. Biased Blade Suspension - S/N 203959 And Up
| 04***10 | Clamp | 2 |
| 04***08 | Clip | 1 |
| 04***10 | Clip,(For North America) | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Frame : Push Plate Machines With Hitch Pin
| 14***H1 | Pin, Self-Locking | 1 |
| 14***H1 | Lanyard | 2 |
| 14***91 | Plate Installation, Push - 1000 Lb | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Frame : Push Plate Machines Without Hitch Pin
| 14***91 | Plate Weldment, Push - 1000 Lb | 1 |
| 14***91 | Plate Installation, Push - 2000 Lb | 1 |
| 14***91 | Plate Installation, Push - 1000 Lb | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Frame : Rear Hitch With Pins
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Frame : Tow Hitch
| 25***R1 | Washer, Lock | 4 |
| 58***34 | U-Bolt | 1 |
| 76***42 | Nut, Hex | 4 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Frame : Transmission Guard
| 15***98 | Guard Installation, Transmission | 1 |
| 16***71 | Guard, Transmission | 1 |
| 25***R1 | Bolt | 8 |
Hydraulics
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Accumulator
| 12***91 | Valve, Gas | 1 |
| 12***91 | Kit, Seal | 1 |
| 12***92 | Accumulator | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : All Wheel Drive Charge Pump
| 14***H1 | Shaft, Drive | 1 |
| 14***H1 | Plate, Wear | 1 |
| 14***91 | Charge Pump | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : All Wheel Drive Hydraulic Oil Filter
| 12***91 | Indicator Assembly | 1 |
| 12***91 | Filter, All Wheel Drive Hydraulic Oil | 1 |
| 12***H1 | Element, Hydraulic Oil Filter (9.5 Inches Long) | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : All Wheel Drive Hydraulics Hic Valve To Motors
| 10***93 | Tie | 4 |
| 12***H1 | Clamp, Hose | 2 |
| 12***H1 | Clip | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : All Wheel Drive Hydraulics Pump To Hic Valve
| 10***34 | Valve, Check | 1 |
| 10***99 | Stud, Weld | 6 |
| 11***10 | Flange, Split | 4 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : All Wheel Drive Hydraulics Tank To Oil Cooler
| 10***98 | Cooler, Oil | 1 |
| 12***82 | Washer, Lock | 6 |
| 12***81 | Elbow - 45 Degree | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : All Wheel Drive Motor
| 13***39 | Kit, Rotating Group | 1 |
| 13***40 | Seal, Shaft | 1 |
| 13***41 | Pin | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : All Wheel Drive Pump
| 14***93 | Pump, Variable Displacement | 1 |
| 14***H1 | Orifice, Stroking - 1.0 mm | 2 |
| 14***H1 | Fitting, Adaptor | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : All Wheel Drive Pump - Control Module Assembly
| 13***13 | Plug, Solenoid - Gray | 1 |
| 14***H1 | Cover | 1 |
| 14***H1 | Arm, Lever | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : All Wheel Drive Pump - Hydraulic Control
| 14***92 | Piston, Positioning Assembly | 1 |
| 14***H1 | Glyd Ring, Turcon | 2 |
| 14***H1 | Ring, Guide | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : All Wheel Drive Pump - Port Plate With Valves
| 14***92 | Kit, Seal | 1 |
| 14***H1 | Support, Bushing | 1 |
| 14***H1 | Bushing | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : All Wheel Drive Pump - Rotary Group
| 14***H1 | Bearing, Roller | 1 |
| 14***H1 | Piston | 9 |
| 14***H1 | Plate, Retaining | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : All Wheel Drive Pump And Transfer Case Mounting
| 12***91 | Pump And Transfer Case Installation | 1 |
| 13***91 | Bolt - Case To Transmission - 1.25 In. Long | 4 |
| 15***67 | Gasket | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Articulation Cylinder
| 10***51 | Ring, Clamp | 1 |
| 12***91 | Kit, Cylinder Seal | 1 |
| 14***04 | Ring, Piston Sealing | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Articulation Cylinder Actuator Lines
| 12***H1 | Hose | 1 |
| 12***H1 | Hose | 1 |
| 12***H1 | Hose | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Auxiliary Float Valve Installation
| 08***19 | Band - Tie Hose To Wire Harness | 3 |
| 11***C1 | Cable Assembly | 1 |
| 12***77 | Nut, Mounting - 3/8-16 Hex | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Auxiliary Front And Rear Actuator Lines With Check Valve
| 04***10 | Clip,(For 1 Attachment And Pat) | 3 |
| 12***H1 | Hose | 1 |
| 12***H1 | Hose | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Auxiliary Front And Rear Actuator Lines Without Check Valve
| 12***H1 | Hose Assembly | 2 |
| 15***91 | Hose Assembly - 220 In | 2 |
| 30***C1 | Strap, Cable | 4 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Basic Hydraulics Brake Lines
| 12***H1 | Hose | 1 |
| 12***H1 | Clamp, Accumulator | 4 |
| 12***H1 | Hose | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Basic Hydraulics Pressure Lines
| 12***18 | Clamp, Hose | 2 |
| 12***H2 | Hose | 1 |
| 12***H1 | Bracket, Clamp | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Basic Hydraulics Return Lines
| 12***H1 | Hose | 1 |
| 12***H1 | Hose | 1 |
| 12***H1 | Bracket, Clamp | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Basic Hydraulics Sensing Lines
| 12***H1 | Coupling, Quick Disconnect | 1 |
| 12***H1 | Hose | 1 |
| 14***H1 | Hose | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Basic Hydraulics Steering Lines
| 12***82 | Washer, Lock | 4 |
| 12***H2 | Hose | 2 |
| 12***H1 | Hose | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Brake Check Valve
| 12***91 | Valve Assembly, Brake Check | 1 |
| 12***H1 | Valve, Check | 2 |
| 12***H1 | Kit, Seal | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Check And Counterbalance Valve Mounting
| 12***H1 | Spacer, Valve | 2 |
| 25***R1 | Bolt, Lamp Mounting | 2 |
| 26***R1 | Bolt - For 2 Dual Counterbalance Valves | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Circle Reverse Actuator Lines
| 14***H1 | Hose | 2 |
| 27***R1 | Clamp - Use Existing Hardware | 2 |
| 36***R1 | O-Ring | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Circle Reverse Motor Circles With Replaceable Wear Pads
| 14***91 | Motor, Hydraulic Assembly - High Torque | 1 |
| 14***91 | Housing | 1 |
| 14***H1 | Bearing, Needle | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Circle Reverse Motor Circles Without Replaceable Wear Pads
| 14***H1 | Link, Drive | 1 |
| 14***91 | Motor, Hydraulic Assembly - Standard Torque | 1 |
| 14***91 | Housing | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Control Valve - L.H. Bank 5 Valves
| 10***26 | Nut, Regular Hexagon (3/8 - 24 Unf) | 2 |
| 14***96 | Valve, Control - L.H. - 5 Valve Bank | 1 |
| 14***91 | Kit, Tie Rod | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Control Valve - L.H. Bank 6 Valves
| 10***26 | Nut, Regular Hexagon (3/8 - 24 Unf) | 2 |
| 14***95 | Valve, Control - L.H. - 6 Valve Bank | 1 |
| 14***H1 | Shuttle | 6 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Control Valve - L.H. Bank 7 Valves
| 10***26 | Nut, Regular Hexagon (3/8 - 24 Unf) | 2 |
| 14***95 | Valve, Control - L.H. - 7 Valve Bank | 1 |
| 14***H1 | Shuttle | 7 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Control Valve - R.H. Bank 4 Valves
| 10***26 | Nut, Regular Hexagon (3/8 - 24 Unf) | 2 |
| 12***H1 | Bar, Cab Top - L.H | 1 |
| 14***94 | Valve, Control - R.H. - 4 Valve Bank | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Control Valve - R.H. Bank 5 Valves
| 10***26 | Nut, Regular Hexagon (3/8 - 24 Unf) | 2 |
| 12***H1 | Bar, Cab Top - L.H | 1 |
| 14***93 | Valve, Control - R.H. - 5 Valve Bank | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Control Valve - R.H. Bank 6 Valves
| 10***26 | Nut, Regular Hexagon (3/8 - 24 Unf) | 2 |
| 14***93 | Valve, Control - R.H. - 6 Valve Bank | 1 |
| 14***91 | Cartridge, Main Relief Valve | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Control Valve - R.H. Bank 7 Valves
| 10***26 | Nut, Regular Hexagon (3/8 - 24 Unf) | 2 |
| 12***H1 | Bar, Cab Top - L.H | 1 |
| 14***93 | Valve, Control - R.H. - 7 Valve Bank | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Control Valve Mounting
| 24***R1 | Bolt, Mounting (3/8 - 16x1 1/2 In) | 1 |
| 24***R1 | Screw | 5 |
| 25***R1 | Nut, Heavy Hexagon (3/8 - 16) | 6 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Control Valve Outlet Section L.H. Bank
| 14***H1 | Spring | 1 |
| 14***H1 | Ring, Retaining | 1 |
| 14***H1 | Shuttle | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Differential Hydraulic Pump
| 12***H1 | Pin, Drive | 1 |
| 12***43 | Key, Woodruff - 0.12 In. W, 0.5 In. D, 0.5 In. L | 1 |
| 14***H1 | Plug - 0.188 In. D | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Differential Oil Cooler Lines Nospin Differential
| 08***19 | Band - Tie Hose To Wire Harness | 3 |
| 10***13 | Hose Assembly | 1 |
| 14*** H | Bolt - Tighten To 43 ?3 Ft/Lbs Wet | 4 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Differential Oil Cooler Pump Mounting
| 12***14 | Washer, Lock | 4 |
| 12***H1 | Pulley | 1 |
| 14***H3 | Bracket, Pump Mounting | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Dozer Blade Actuator Lines
| 08***34 | Tie, Cable | 5 |
| 12***H1 | Hose | 1 |
| 12***H1 | Hose | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Dozer Blade Cylinder
| 10***61 | Fitting, Grease | 2 |
| 14***91 | Cylinder, Dozer Blade | 1 |
| 14***H1 | Barrel Weldment | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Drawbar Lift Accumulator Installation R.H. And L.H. 90 Degree Blade Suspension
| 08***34 | Tie, Cable | 4 |
| 12***H1 | Clamp, Accumulator | 4 |
| 12***91 | Accumulator Installation, Drawbar Lift | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Drawbar Lift Accumulator Installation R.H. Biased Blade Suspension
| 10***99 | Stud, Weld | 8 |
| 12***H1 | Clamp, Accumulator | 4 |
| 12***91 | Accumulator Installation, Drawbar Lift | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Drawbar Lift Actuator Lines R.H. And L.H. 90 Degree Blade Suspension
| 12***H1 | Hose | 2 |
| 12***H1 | Hose | 2 |
| 12***H1 | Hose (See Pg 10-040) | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Drawbar Lift Actuator Lines R.H. Biased Blade Suspension
| 12***H1 | Hose | 2 |
| 12***H1 | Hose | 2 |
| 12***H1 | Hose (See Pg 10-040) | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Drawbar Lift Cylinder
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Drawbar Lift Cylinder Left - R.H. Biased Blade Suspension
| 10***51 | Ring, Clamp | 1 |
| 12***91 | Kit, Cylinder Seal | 1 |
| 14***04 | Ring, Piston Sealing | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Drawbar Lift Cylinder Right - R.H. Biased Blade Suspension
| 10***51 | Ring, Clamp | 1 |
| 12***91 | Kit, Cylinder Seal | 1 |
| 14***04 | Ring, Piston Sealing | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Drawbar Side Shift Accumulator Installation R.H. And L.H. 90 Degree Blade Suspension - S/N 203163-203500
| 12***H1 | Clamp, Accumulator | 4 |
| 12***91 | Accumulator Installation, Drawbar Side Shift | 1 |
| 14***88 | Hose | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Drawbar Side Shift Accumulator Installation R.H. And L.H. 90 Degree Blade Suspension - S/N 203501 And Up
| 12***H1 | Clamp, Accumulator | 4 |
| 12***91 | Accumulator Installation, Drawbar Side Shift | 1 |
| 14***H1 | Hose | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Drawbar Side Shift Accumulator Installation R.H. Biased Blade Suspension
| 12***H1 | Clamp, Accumulator | 4 |
| 12***91 | Accumulator Installation, Drawbar Side Shift | 1 |
| 14***17 | Hose | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Drawbar Side Shift Actuator Lines R.H. And L.H. 90 Degree Blade Suspension - S/N 203163-203500
| 12***H1 | Hose | 1 |
| 12***H1 | Hose | 1 |
| 12***H1 | Hose (See Pg 10-044) | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Drawbar Side Shift Actuator Lines R.H. And L.H. 90 Degree Blade Suspension - S/N 203501 And Up
| 12***H1 | Hose | 1 |
| 12***H1 | Hose | 1 |
| 13***13 | Clamp | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Drawbar Side Shift Actuator Lines R.H. Biased Blade Suspension
| 12***H1 | Hose | 1 |
| 12***H1 | Hose | 1 |
| 14***H1 | Hose | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Drawbar Side-Shift Cylinder 3.50 Inch Inside Diameter
| 10***51 | Ring, Clamp | 1 |
| 12***91 | Kit, Cylinder Seal | 1 |
| 14***49 | Piston | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Drawbar Side-Shift Cylinder R.H. Biased Blade Suspension
| 10***51 | Ring, Clamp | 1 |
| 12***91 | Kit, Cylinder Seal | 1 |
| 14***04 | Ring, Piston Sealing | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Dual Counterbalance And Relief Valve Drawbar Lift
| 12***H1 | Kit, Seal | 1 |
| 12***H1 | Cartridge, Relief Valve | 1 |
| 12***H1 | Kit, Seal | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Dual Counterbalance Valve Articulation And Drawbar Shift
| 12***91 | Valve, Dual Counterbalance | 2 |
| 12***H1 | Cartridge, Counterbalance | 2 |
| 12***H1 | Kit, Seal | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Dual Pilot Check And Relief Valve Scarifier
| 12***92 | Valve, Dual Pilot Check And Relief | 2 |
| 12***H1 | Cartridge, Pilot Check | 2 |
| 12***H1 | Kit, Seal | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Dual Pilot Check Valve Leaning Wheel, Moldboard Tilt And Ripper
| 12***91 | Valve, Dual Pilot Check | 0 |
| 12***H1 | Cartridge, Pilot Check | 2 |
| 12***H1 | Kit, Seal | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Four-Way Swivel Block
| 12***H1 | Seal | 5 |
| 14***87 | Swivel Block, Four-Way | 1 |
| 31***31 | Ring, Retaining | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Four-Way Swivel Block Top And Bottom Feed
| 12***H1 | Seal | 5 |
| 14***H1 | Pin Weldment | 1 |
| 14***H1 | Cover | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Four-Way Swivel Block Used With Blade Pro
| 10***61 | Key | 1 |
| 11***91 | Fitting, Grease | 1 |
| 12***45 | Bearing, Teflon | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Hic Valve
| 12***H1 | Plug | 4 |
| 12***93 | Valve, Hic | 1 |
| 13***00 | Ring, Back-Up | 4 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Hydraulic Hose Clamping Articulation Joint
| 12***H1 | Clamp, Hose - 3-Piece Set | 2 |
| 14***H1 | Support, Hose | 1 |
| 14***91 | Bracket Assembly - Frame Baffle | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Hydraulic Oil Filter
| 12***H2 | Element, Converter & Differential Oil Filter | 1 |
| 12***91 | Filter, All-Wheel Drive Hydraulic Oil | 1 |
| 12***91 | Indicator Assembly | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Hydraulic Oil Tank Awd
| 11***01 | Elbow, Street - 90 Degree | 1 |
| 11***55 | Strainer, Tank | 1 |
| 14***62 | Strainer, Suction | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Hydraulic Oil Tank Non-Awd
| 14***62 | Strainer, Suction | 1 |
| 14***23 | Gasket, Hydraulic Tank Cover | 1 |
| 14***91 | Tank, Hydraulic Oil | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Hydraulic System Pump
| 12***93 | Pump, Hydraulic | 1 |
| 12***H1 | Pin, Roll | 1 |
| 13***99 | Bearing, Needle | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Hydraulic System Pump Mounting
| 12***H1 | Sleeve, Pump Drive | 1 |
| 22***R1 | O-Ring | 1 |
| 23***R1 | Ring, Retaining | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Junction Block R.H. And L.H. 90 Degree Blade Suspension
| 12***92 | Block, Junction | 1 |
| 12***91 | Valve, Lock Pin Solenoid | 1 |
| 12***H1 | Kit, Seal | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Junction Block R.H. Biased Blade Suspension
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Leaning Wheel Cylinder
| 10***51 | Ring, Clamp | 1 |
| 14***04 | Ring, Piston Sealing | 1 |
| 14***91 | Cylinder Assembly, Leaning Wheel | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Leaning Wheel Cylinder Actuator Lines
| 12***H1 | Hose | 1 |
| 12***H1 | Hose | 1 |
| 12***H1 | Hose | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Lock Pin Cylinder Actuator Lines R.H. And L.H. 90 Degree Blade Suspension
| 12***H1 | Hose | 2 |
| 12***R1 | Clamp, Tube | 2 |
| 24***R1 | Screw | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Lock Pin Cylinder R.H. And L.H. 90 Degree Blade Suspension
| 12***91 | Kit, Cylinder Seal | 1 |
| 14***25 | Piston Weldment | 1 |
| 14***32 | Head, Cylinder | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Lock/Unlock Differential Control And Relief Valve
| 14***92 | Valve, Directional Control | 1 |
| 14***93 | Cartridge, Relief Valve | 1 |
| 14***H1 | Coil, Solenoid | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Lock/Unlock Differential Control Valve
| 14***H1 | Coil, Solenoid | 1 |
| 14***92 | Valve, Directional Control | 1 |
| 14***92 | Valve, Control | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Lock/Unlock Differential Hydraulic Pump Mounting
| 12***14 | Washer, Lock | 4 |
| 12***R1 | Washer, Lock - Ground Screw | 2 |
| 12***H1 | Pulley | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Lock/Unlock Differential Hydraulic System
| 08***19 | Strap, Tie | 3 |
| 10***13 | Hose Assembly | 1 |
| 12***H1 | Coupling, Quick Disconnect | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Moldboard Float Valve
| 14***91 | Valve, Moldboard Float | 2 |
| 14***H1 | Cartridge, Valve | 1 |
| 14***H1 | Coil, Solenoid - 24 Volt | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Moldboard Float Valve Installation
| 08***19 | Band - Tie Hose To Wire Harness | 6 |
| 10***71 | Elbow - 45 Degree | 2 |
| 11***C1 | Bar, Buss - 2 Hole | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Moldboard Shift Cylinder
| 10***51 | Ring, Clamp | 1 |
| 12***91 | Kit, Cylinder Seal | 1 |
| 12***91 | Cylinder Weldment | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Moldboard Shift Cylinder Actuator Lines
| 11***42 | Clamp, Tube | 2 |
| 12***82 | Washer, Lock | 4 |
| 12***H1 | Hose | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Moldboard Tilt Cylinder
| 12***91 | Cylinder Weldment | 1 |
| 12***91 | Cylinder Assembly, Moldboard Power Tilt | 2 |
| 12***91 | Kit, Cylinder Seal | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Moldboard Tilt Cylinder Actuator Lines
| 08***19 | Band - Tie Hose To Wire Harness | 2 |
| 11***42 | Clamp, Tube | 2 |
| 12***H1 | Hose | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Optional Control Levers Auxiliary
| 12***14 | Washer, Lock | 0 |
| 12***45 | Bearing, Teflon | 2 |
| 12***H1 | Epoxy, General Purpose - 1.2 Oz | 0 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Optional Control Levers Scarifier/Ripper
| 12***14 | Washer, Lock | 2 |
| 12***45 | Bearing, Teflon | 2 |
| 12***H1 | Epoxy, General Purpose - 1.2 Oz | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Orbitrol Control Unit
| 10***21 | Bearing, Needle Thrust | 1 |
| 12***H1 | Pin, Centering | 1 |
| 12***H1 | Kit, Centering Spring | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Radiator Shutter Hydraulic Cylinder
| 14***H1 | Bolt | 4 |
| 14***H1 | Boot, Rubber | 1 |
| 14***H1 | Rod End | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Ripper Cylinder
| 10***55 | Ring, Retaining | 1 |
| 12***91 | Kit, Cylinder Seal | 1 |
| 12***H1 | Nut, Lock - Tighten To 500 Ft/Lbs Wet | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Ripper Cylinder Actuator Lines
| 12***H1 | Hose | 2 |
| 12***H1 | Plate, Valve Mounting | 1 |
| 14***H1 | Hose | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Scarifier Cylinder
| 10***51 | Ring, Clamp | 1 |
| 11***28 | Piston | 1 |
| 11***30 | Retainer, Piston Seal | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Scarifier Cylinder Actuator Lines
| 12***H1 | Hose | 1 |
| 12***H1 | Hose | 1 |
| 12***H1 | Hose | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Solenoid Valve Cartridge
| 12***H1 | Pin, Male | 2 |
| 12***H1 | Seal, Cable | 2 |
| 12***H1 | Shroud, Female | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Steering And Brake Pump
| 12***92 | Pump, Steering And Brake | 1 |
| 12***H1 | Washer | 1 |
| 12***H1 | Washer, Thrust | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Steering And Brake Pump Mounting
| 12***H1 | Gasket, Accessory Drive | 1 |
| 30***R1 | Bolt | 2 |
| 30***R1 | Washer, Flat | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Steering Cylinder
| 12***91 | Kit, Cylinder Seal | 1 |
| 14***79 | Ring, Clamp | 1 |
| 14***81 | Piston | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Steering Cylinder Actuator Lines
| 12***H1 | Hose | 2 |
| 14***20 | Hose | 2 |
| 36***R1 | O-Ring | 4 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Transfer Case
| 10***71 | Ring, Retaining | 1 |
| 10***38 | Cup, Bearing | 2 |
| 11***50 | Bearing, Ball | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Valve Section Circle Reverse
| 13***01 | Screw, Socket Head | 2 |
| 14***H1 | Cap | 1 |
| 14***H1 | End, Spool | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Valve Section L.H. Blade Lift
| 13***01 | Screw, Socket Head | 2 |
| 14***H1 | Cap | 1 |
| 14***H1 | End, Spool | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Valve Section L.H. Drawbar Lift And Moldboard Shift
| 13***01 | Screw, Socket Head | 2 |
| 14***H1 | Cap | 1 |
| 14***H1 | End, Spool | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Valve Section Leaning Wheel
| 13***01 | Screw, Socket Head | 2 |
| 14***H1 | Cap | 1 |
| 14***H1 | End, Spool | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Valve Section Moldboard Tilt
| 13***01 | Screw, Socket Head | 2 |
| 14***H1 | Cap | 1 |
| 14***H1 | End, Spool | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Valve Section Optional - L.H. Bank
| 13***01 | Screw, Socket Head | 2 |
| 14***H1 | Cap | 1 |
| 14***H1 | End, Spool | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Valve Section Optional - R.H. Bank
| 13***01 | Screw, Socket Head | 2 |
| 14***H1 | Cap | 1 |
| 14***H1 | End, Spool | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Valve Section R.H. Blade Lift
| 13***01 | Screw, Socket Head | 2 |
| 14***H1 | Cap | 1 |
| 14***H1 | End, Spool | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Valve Section R.H. Drawbar Lift, Drawbar Side Shift And Articulation
| 13***01 | Screw, Socket Head | 2 |
| 14***H1 | Cap | 1 |
| 14***H1 | End, Spool | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Hydraulics : Valve Section Scarifier Or Ripper Or Dozer Blade
| 13***01 | Screw, Socket Head | 2 |
| 14***91 | Valve Section | 1 |
| 14***H1 | Cap | 1 |
Instruments
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Instruments : Console Switch Panel
| 08***19 | Band - Tie Hose To Wire Harness | 3 |
| 11***C1 | Bar, Buss - 2 Hole | 2 |
| 11***C1 | Bar, Buss - 4 Hole | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Instruments : Gauge Cluster
| 11***C1 | Voltmeter | 1 |
| 11***C1 | Gauge, Fuel | 1 |
| 12***C1 | Bezel | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Instruments : Hubodometer Installation
| 13***97 | Bolt | 4 |
| 15***16 | Cap Weldment, Hub | 1 |
| 15***19 | Hubodometer - 13.00 X 24 Tire | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Instruments : Lock/Unlock Differential Indicator
| 08***19 | Strap, Tie | 10 |
| 11***C1 | Bar, Buss - 2 Hole | 1 |
| 11***C1 | Breaker, Circuit - 6 A - Auxiliary Blade Float | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Instruments : Speedometer
| 08***34 | Band | 10 |
| 14***H1 | Speedometer - Km/H | 1 |
| 14***91 | Wiring Harness, Speedometer | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Instruments : Steering Console Instrument Panel
| 12***H2 | Diode Board - Bulb Check | 1 |
| 12***H1 | Switch, Auxiliary Blade Float | 1 |
| 12***H2 | Gauge, Articulation | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Instruments : Tachometer Installation
| 12***C1 | Sensor, Tachometer | 1 |
| 12***91 | Tachometer, Electric | 1 |
| 12***91 | Tachometer Installation | 1 |
Miscellaneous
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Miscellaneous : Decals Gd530a-2b
| 09***00 | Komatsu | 1 |
| 09***15 | Plate? Mark,Komatsu (For Heavy-Duty) | 2 |
| 09***00 | Decal, "Komatsu" (Front Edge Of Decks) | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Miscellaneous : Decals Gd530aw-2b
| 09***00 | Komatsu | 1 |
| 09***15 | Plate? Mark,Komatsu (For Heavy-Duty) | 2 |
| 09***00 | Decal, "Komatsu" (Front Edge Of Decks) | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Miscellaneous : Fire Extinguisher
| 12***17 | Washer, Shunt Lead To Switch Attaching | 3 |
| 14***91 | Installation, Fire Extinguisher | 1 |
| 22***R1 | Screw, Self-Tapping | 3 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Miscellaneous : Manual Case
| 10***R2 | Manual, Safety | 1 |
| 11***C1 | Case, Operator'S Manual | 1 |
| 11***C1 | Chain, Beaded | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Miscellaneous : Memoranda
| 10***96 | Adhesive, Rubber - 1 Qt. Can | 0 |
| 12***H1 | Sealant, Silicone Rubber - 10.3 Oz | 0 |
| 12***H1 | Gasket Eliminator 515 - 50 Ml Tube | 0 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Miscellaneous : Scarifier Tooth Storage
| 13***H1 | Keys | 1 |
| 15***91 | Bracket Weldment | 1 |
| 15***92 | Lock, Bar | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Miscellaneous : Sunvisor
| 12***91 | Washer, Plain | 4 |
| 12***92 | Washer, Flat - 0.25 | 4 |
| 12***73 | Spacer | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Miscellaneous : Tools
| 10***61 | Fitting, Grease | 1 |
| 12***88 | Kit, Tool | 1 |
| 12***91 | Adapter - Test Port To Zerk | 1 |
Mounted Equipment
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Mounted Equipment : 3/4 Inch Moldboard
| 12***91 | Moldboard Assembly - 3/4 In. X 22 In. X 12 Ft | 1 |
| 12***91 | Moldboard Weldment - 12 Ft | 1 |
| 14***99 | Bit, Reversible End - For 5/8 In. Cutting Edge | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Mounted Equipment : 5/8 Inch Extension For 3/4 Inch Moldboard 12 Foot Long Moldboard
| 12***H1 | Edge, Cutting - 5/8 In. X 6 In. X 8 Ft. Heat Treated | 1 |
| 12***H2 | Extension, Moldboard - R.H | 1 |
| 12***H2 | Extension, Moldboard - L.H | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Mounted Equipment : 5/8 Inch Extension For 7/8 Inch Moldboard 12 Foot Long Moldboard
| 12***H1 | Edge, Cutting - 5/8 In. X 6 In. X 8 Ft. Heat Treated | 1 |
| 12***H2 | Extension, Moldboard - R.H | 1 |
| 12***H2 | Extension, Moldboard - L.H | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Mounted Equipment : 5/8 Inch Extension For 7/8 Inch Moldboard 13 Foot Long Moldboard
| 12***H1 | Edge, Cutting - 5/8 In. X 6 In. X 8 Ft. Heat Treated | 1 |
| 12***H1 | Edge, Cutting - 5/8 In. X 6 In. X 9 Ft. Heat Treated | 1 |
| 12***H2 | Extension, Moldboard - R.H | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Mounted Equipment : 5/8 Inch Extension For 7/8 Inch Moldboard 14 Foot Long Moldboard
| 12***H1 | Edge, Cutting - 5/8 In. X 6 In. X 9 Ft. Heat Treated | 1 |
| 12***H2 | Extension, Moldboard - R.H | 1 |
| 12***H2 | Extension, Moldboard - L.H | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Mounted Equipment : 7/8 Inch Moldboard
| 12***87 | Edge, Cutting - 5/8 In. X 8 In. X 7 Ft | 0 |
| 12***H1 | Edge, Cutting 5/8 In. X 6 In. X 6 Ft. Heat Treated | 0 |
| 12***H1 | Edge, Cutting - 5/8 In. X 6 In. X 7 Ft. Heat Treated | 0 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Mounted Equipment : 7/8 Inch Moldboard 14 Foot Long With Moveable Cylinder Mount
| 12***87 | Edge, Cutting - 5/8 In. X 8 In. X 7 Ft | 0 |
| 12***H1 | Edge, Cutting - 5/8 In. X 6 In. X 7 Ft. Heat Treated | 0 |
| 12***91 | Moldboard Assembly - 7/8 In. X 24 In. X 14 Ft | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Mounted Equipment : Circle Reverse Gear
| 12***H1 | Seal, Oil | 1 |
| 14***93 | Cover, Circle Reverse Case | 1 |
| 24***R1 | Bolt - Baffle To Rear Frame | 6 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Mounted Equipment : Circle Reverse Gear Case With Slip Clutch
| 12***H1 | Seal, Oil | 1 |
| 14***91 | Gear Case Assembly, Circle Reverse | 1 |
| 14***93 | Cover, Circle Reverse Case | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Mounted Equipment : Circle Reverse Motor Installation S/N 203163-203192
| 12***91 | Gear Assembly, Circle Reverse | 1 |
| 14***45 | Plate, Mounting | 1 |
| 14*** H | Bolt - Tighten To 43 ?3 Ft/Lbs Wet | 6 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Mounted Equipment : Circle Reverse Motor Installation S/N 203193 And Up
| 12***91 | Gear Assembly, Circle Reverse | 1 |
| 14***45 | Plate, Mounting | 1 |
| 14***17 | Gasket | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Mounted Equipment : Circle Reverse Slip Clutch
| 12***H1 | Plate, Friction | 7 |
| 12***H1 | Plate, Separator | 8 |
| 12***H1 | V-Ring | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Mounted Equipment : Dozer Blade
| 10***72 | Pin, Cotter | 2 |
| 10***24 | Pin, Cotter | 4 |
| 10***45 | Yoke | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Mounted Equipment : Dozer Blade Mounting
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Mounted Equipment : Drawbar And Circle With Wear Pads
| 10***85 | Pin, Cotter | 2 |
| 10***62 | Fitting, Grease - 90 Degree | 2 |
| 11***90 | Spacer | 12 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Mounted Equipment : Drawbar And Circle Without Wear Pads
| 10***85 | Pin, Cotter | 2 |
| 10***61 | Fitting, Grease | 8 |
| 10***62 | Fitting, Grease - 90 Degree | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Mounted Equipment : Drawbar Lift
| 10***61 | Fitting, Grease | 10 |
| 10***62 | Fitting, Grease - 90 Degree | 1 |
| 12***99 | Shim - 0.031 In. (0.787 mm) | 20 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Mounted Equipment : Drawbar Lift R.H. Biased Blade Suspension
| 10***61 | Fitting, Grease | 4 |
| 10***62 | Fitting, Grease - 90 Degree | 2 |
| 12***99 | Shim - 0.031 In. (0.787 mm) | 15 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Mounted Equipment : Overlay End Bit Installation Rock Type
| 15***84 | End Bit Installation, Overlay - Rock Type | 1 |
| 15***96 | Bit, Overlay End - L.H | 1 |
| 15***97 | Bit, Overlay End - R.H | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Mounted Equipment : Power Tilt Moldboard Carrier
| 10***10 | Pin, Cotter | 4 |
| 10***61 | Fitting, Grease | 2 |
| 12***H2 | Wear Pad | 4 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Mounted Equipment : Reversible Overlay End Bit Installation 5/8 Inch X 6 Inch Cutting Edge
| 12***91 | End Bit Installation, Reversible Overlay | 1 |
| 12***H1 | Bit, Reversible Overlay End | 2 |
| 33***87 | Washer, Lock | 12 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Mounted Equipment : Reversible Overlay End Bit Installation 5/8 Inch X 8 Inch Cutting Edge
| 12***91 | End Bit Installation, Reversible Overlay | 1 |
| 12***H1 | Bit, Reversible Overlay End | 2 |
| 33***87 | Washer, Lock | 12 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Mounted Equipment : Ripper Installation
| 10***54 | Fitting, Grease | 2 |
| 11***58 | Shim - 0.040 In. (1.016 mm) | 8 |
| 11***59 | Shim - 0.020 In. (0.510 mm) | 8 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Mounted Equipment : Scarifier Installation
| 10***61 | Fitting, Grease | 6 |
| 12***99 | Shim - 0.031 In. (0.787 mm) | 20 |
| 12*** A | Shim - 0.015 In. (0.381 mm) | 8 |
Power
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Power : 90 Gallon Fuel Tank
| 08***19 | Band - Tie Hose To Wire Harness | 1 |
| 10***96 | Adhesive, Rubber - 1 Qt. Can | 0 |
| 13***95 | Neoprene Mounting Pad - 16 Ft | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Power : Accelerator/Decelerator Control Linkage
| 12***14 | Washer, Lock | 1 |
| 12***80 | Washer, Lock - Ground Screw | 3 |
| 12***H2 | Washer, Nylon Bearing | 0 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Power : Air Cleaner
| 12***H1 | Cover Assembly | 1 |
| 12***91 | Air Cleaner | 1 |
| 12***H1 | Housing | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Power : Air Intake System
| 12***75 | Nut - Mounting | 1 |
| 12***R1 | Washer, Lock - Ground Screw | 2 |
| 12***82 | Washer, Lock | 4 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Power : Engine And Mounting
| 12***H1 | Hose | 1 |
| 12***H1 | Washer, Sealing | 1 |
| 12***H1 | Adaptor | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Power : Ether Injection Starting Aid
| 08***19 | Band - Tie Hose To Wire Harness | 10 |
| 11***C1 | Bar, Buss - 2 Hole | 1 |
| 12***14 | Washer, Lock | 4 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Power : Exhaust System
| 12***82 | Washer, Lock | 2 |
| 13***H1 | Muffler | 1 |
| 14***H1 | Tube, Exhaust | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Power : Floor Plate
| 10***96 | Adhesive, Rubber - 1 Qt. Can | 0 |
| 11***R1 | Ring, Retaining | 2 |
| 12***45 | Bearing, Teflon | 4 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Power : Fuel Lines
| 08***19 | Band - Tie Hose To Wire Harness | 1 |
| 12***H1 | Hose | 1 |
| 14***H1 | Hose | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Power : Fuel Tank Drain Hose
| 12***45 | Valve, Shut-Off | 1 |
| 15***34 | Hose | 1 |
| 36***32 | Connector | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Power : Governor Control Tube Spring
| 12***91 | Tube Weldment | 1 |
| 12***H1 | Spring | 1 |
| 12***91 | Spring Assembly, Governor Control Tube | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Power : Lockable Oil Fill And Dipstick Installation
| 12***H2 | Cap, Oil Filler | 1 |
| 12***H1 | Bar, Dipstick Lock | 1 |
| 14***H1 | Strap, Dipstick Lock | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Power : Shift Console
| 12***92 | Washer, Flat - 0.25 | 4 |
| 12***H2 | Arm, Throttle Control | 1 |
| 14***92 | Lever, Throttle Control | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Power : Throttle Control
| 08***10 | Tie, Cable | 1 |
| 12***80 | Washer, Lock - Ground Screw | 4 |
| 12***84 | Washer, Lock - 1/2 In | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Power : Transmission Shifter Inline Shift Pattern
| 11***90 | Screw, Fillister Head Machine - #10-24 X 0.875 | 0 |
| 11***C1 | Handle, Ratchet | 1 |
| 12***17 | Washer, Shunt Lead To Switch Attaching | 6 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Power : Transmission Shifter U-Shift Pattern
| 14***92 | Transmission Shifter | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Power : Turbo Lube
| 11***26 | Adaptor, Reducing | 1 |
| 12***91 | Kit, Turbocharger Lube | 1 |
| 12***H1 | Support | 1 |
Steering
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Steering : Steering Column
| 12***91 | Column, Steering | 1 |
| 13***44 | Cap, Outer Tube | 1 |
| 14***H1 | Kit, Horn Brush Replacement | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Steering : Steering Console
| 08***19 | Strap, Tie | 7 |
| 10***58 | Screw, Set | 2 |
| 10***96 | Adhesive, Rubber - 1 Qt. Can | 0 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Steering : Steering Console Control Levers
| 10***96 | Adhesive, Rubber - 1 Qt. Can | 0 |
| 12***14 | Washer, Lock | 16 |
| 12***45 | Bearing, Teflon | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Steering : Steering Control Assembly
| 12***91 | Bracket Weldment, Steering Mounting - L.H | 1 |
| 12***92 | Bracket Weldment, Steering Mounting - R.H | 1 |
| 14*** H | Bolt - Tighten To 43 ?3 Ft/Lbs Wet | 4 |
Superstructure
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Air Conditioner Compressor Mounting S/N 203163-203917
| 12***14 | Washer, Lock | 1 |
| 12***76 | Nut, Hex | 1 |
| 12***77 | Nut, Mounting - 3/8-16 Hex | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Air Conditioner Compressor Mounting S/N 203918 And Up
| 14***H1 | Spacer, Fan | 1 |
| 14***H1 | Belt, Air Conditioner Compressor | 1 |
| 14***H1 | Pulley | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Air Conditioner Installation
| 10***96 | Adhesive, Rubber - 1 Qt. Can | 0 |
| 12***75 | Nut - Mounting | 4 |
| 12***92 | Washer, Flat - 0.25 | 4 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Air Conditioner Lines S/N 203163-203917
| 10***99 | Stud, Weld | 1 |
| 14***H1 | Sleeve, Hose Wrap - 44 In | 1 |
| 14***H1 | Fitting, Evaporator Drain | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Air Conditioner Lines S/N 203918 And Up
| 10***99 | Stud, Weld | 1 |
| 13***H1 | O-Ring, No. 8 | 2 |
| 14***H1 | Sleeve, Hose Wrap - 44 In | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Air Conditioner/Heater Box Assembly S/N 203163-203917
| 12***94 | Washer, Plain | 8 |
| 14***H1 | Fitting, Hose - Bulkhead - Water Out | 1 |
| 14***H1 | Pan, Drain | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Air Conditioner/Heater Box Assembly S/N 203918 And Up
| 13***H1 | Valve | 1 |
| 13***H1 | O-Ring, No. 8 | 2 |
| 13***H1 | Switch, Master | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Blower Motor Assembly S/N 203163-203917
| 13***79 | Washer, Lock | 4 |
| 14***H1 | Motor | 1 |
| 14***H1 | Flange, Inlet | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Blower Motor Assembly S/N 203918 And Up
| 12***H1 | Gasket, Motor Mounting | 2 |
| 14***H1 | Clip, Blower Wheel | 1 |
| 14***91 | Blower Weldment | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Cab Assembly - Full Height
| 10***96 | Adhesive, Rubber - 1 Qt. Can | 0 |
| 11***C1 | Bolt, Latch | 2 |
| 12***75 | Nut - Mounting | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Cab Assembly - Low Profile S/N 203163-203886
| 10***96 | Adhesive, Rubber - 1 Qt. Can | 0 |
| 11***C1 | Bolt, Latch | 2 |
| 12***75 | Nut - Mounting | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Cab Assembly - Low Profile S/N 203887 And Up
| 08***19 | Band - Tie Hose To Wire Harness | 5 |
| 10***96 | Adhesive, Rubber - 1 Qt. Can | 0 |
| 11***C1 | Bolt, Latch | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Cab Dome Light
| 12***22 | Nut-Hex Mach, 8-32 Znd 1 | 2 |
| 12***91 | Light Installation, Dome | 1 |
| 12***H1 | Bulb, Dome Light | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Cab Glass Full Height
| 12***H2 | Glass, Door - Top | 2 |
| 12***H2 | Glass, Rear | 1 |
| 12***H2 | Glass, Side - Top | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Cab Glass Low Profile
| 13***H1 | Seal, Window - 95.3 In | 10 |
| 14***H1 | Glass, Door - Lower | 2 |
| 14***H1 | Glass, Windshield | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Cab Installation
| 11***34 | Washer, Special - Rops | 2 |
| 11***85 | Mount, Rubber | 4 |
| 12***H1 | Washer, Special - Rops | 4 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Cab Sound Insulation And Floor Mats Full Height - Gray
| 12***92 | Washer, Flat - 0.25 | 10 |
| 12***H1 | Plate, Defroster Fan Base | 1 |
| 12***91 | Bracket, Rear Cover Mounting | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Cab Sound Insulation And Floor Mats Low Profile Cab
| 10***C1 | Adhesive | 0 |
| 12***92 | Washer, Flat - 0.25 | 8 |
| 12***94 | Washer, Plain | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Cab Steps
| 12***H1 | Bracket, Step Mounting - 4.29 In | 8 |
| 12***H1 | Strip, Rubber | 4 |
| 14***H1 | Step Weldment, Lower | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Cab Vent Full Height Cab
| 12***75 | Nut - Mounting | 12 |
| 12***92 | Washer, Flat - 0.25 | 28 |
| 12***H1 | Bar, Cab Top - R.H | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Cab Vent Low Profile Cab
| 12***75 | Nut - Mounting | 12 |
| 12***92 | Washer, Flat - 0.25 | 28 |
| 12***H1 | Filter, Cab Vent | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Cab Vent Machines With Air Conditioning
| 10***96 | Adhesive, Rubber - 1 Qt. Can | 0 |
| 12***17 | Washer, Shunt Lead To Switch Attaching | 2 |
| 12***61 | Nut, Hex - No. 10-24 | 4 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Defroster Fan - Front And Rear
| 11***C1 | Washer, Flat | 4 |
| 11***C1 | Motor, Fan | 1 |
| 12***91 | Washer, Plain | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Engine Compartment Sound Insulation
| 14***91 | Grille Weldment | 1 |
| 14***H1 | Insulation - Hood Top - L.H | 1 |
| 14***H1 | Insulation - Hoodtop, Right | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Front And Rear Window Washer Installation Full Height Cab
| 08***19 | Band - Tie Hose To Wire Harness | 6 |
| 12***92 | Washer, Flat - 0.25 | 4 |
| 12***H1 | Hose - 108 In | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Front And Rear Window Washer Installation Low Profile Cab
| 12***92 | Washer, Flat - 0.25 | 4 |
| 12***H1 | Hose - 108 In | 2 |
| 12***H1 | Pump, Windshield Washer | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Front And Rear Wiper Installation Full Height Cab
| 14***H1 | Arm, Wiper - 20 In. - Standard | 2 |
| 14***91 | Arm, Wiper - 20 In. - Washer Option | 2 |
| 14***H1 | Blade, Wiper - 20 In | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Front And Rear Wiper Installation Low Profile Cab
| 14***H1 | Blade, Wiper - 20 In | 2 |
| 14***H1 | Arm, Wiper - 16 In. - Standard | 2 |
| 14***91 | Arm, Wiper - 16 In. - Washer Option | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Front Fenders
| 12***84 | Washer, Lock - 1/2 In | 2 |
| 12***92 | Washer, Flat - 0.25 | 8 |
| 14***H2 | Fender, Front . . . . . . . . . . . . . . . . . 8 | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Heater Box Assembly S/N 203163-203917
| 12***94 | Washer, Plain | 8 |
| 14***H1 | Fitting, Hose - Bulkhead - Water Out | 1 |
| 14***H1 | Louver Assembly | 4 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Heater Box Assembly S/N 203918 And Up
| 13***H1 | Valve | 1 |
| 13***H1 | Switch, Master | 1 |
| 13***H1 | Switch, Fan | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Heater Hose
| 08***34 | Tie, Cable | 1 |
| 10***99 | Stud, Weld | 1 |
| 12***45 | Valve, Shut-Off | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Heater Installation
| 10***96 | Adhesive, Rubber - 1 Qt. Can | 1 |
| 14***H1 | Gasket, Heater | 1 |
| 14***H1 | 8gasket, Floor Plate | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Hinged Lower Front Window Full Height Cab
| 11***C1 | Grommet, Rubber | 4 |
| 12***93 | Window, Hinged - L.H | 1 |
| 12***93 | Window, Hinged - R.H | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Hinged Lower Front Window Installation Full Height Cab
| 12***61 | Nut, Hex - No. 10-24 | 20 |
| 12***91 | Washer, Plain | 36 |
| 12***92 | Washer, Flat - 0.25 | 4 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Hinged Lower Front Window Installation Low Profile Cab
| 12***61 | Nut, Hex - No. 10-24 | 20 |
| 12***91 | Washer, Plain | 36 |
| 12***92 | Washer, Flat - 0.25 | 4 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Hinged Lower Front Window Low Profile Cab
| 11***C1 | Nut, Sert - 8-32 | 4 |
| 11***C1 | Grommet, Rubber | 4 |
| 12***H1 | Shim, Rubber | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Hood Side
| 12***14 | Washer, Lock | 4 |
| 12***H1 | Lock, Engine Panel | 2 |
| 14***59 | Handle, Engine Panel | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Hood Top
| 12***H1 | Support - R.H. - Optional | 2 |
| 12***H1 | Hold, Hand | 2 |
| 14***92 | Hood Weldment | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Inside Rear-View Mirror
| 11***C1 | Bracket, Mirror Mounting | 1 |
| 11***C1 | Mirror, Convex | 1 |
| 12***77 | Nut, Mounting - 3/8-16 Hex | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : L.H. Cab Door Full Height
| 10***62 | Pin, Cotter | 2 |
| 10***73 | Pin, Cotter | 3 |
| 11***83 | Clevis | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : L.H. Cab Door Low Profile - S/N 203163-203886
| 10***62 | Pin, Cotter | 2 |
| 10***73 | Pin, Cotter | 3 |
| 11***83 | Clevis | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : L.H. Cab Door Low Profile - S/N 203887 And Up
| 10***73 | Pin, Cotter | 1 |
| 12***61 | Nut, Hex - No. 10-24 | 1 |
| 12***91 | Washer, Plain | 6 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Lower Front Wiper Installation
| 11***C1 | Bar, Buss - 2 Hole | 1 |
| 12***61 | Nut, Hex - No. 10-24 | 2 |
| 12***91 | Washer, Plain | 8 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Mirror Installation West Coast
| 12***H1 | Head, Mirror | 1 |
| 12***H1 | Arm, Bow | 1 |
| 12***91 | Mirror Installation, West Coast | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Open Rops Cab Assembly Full Height
| 10***96 | Adhesive, Rubber - 1 Qt. Can | 0 |
| 12***02 | Grommet, Top Lights | 2 |
| 12***75 | Nut - Mounting | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Open Rops Cab Assembly Low Profile
| 08***19 | Band - Tie Hose To Wire Harness | 5 |
| 10***96 | Adhesive, Rubber - 1 Qt. Can | 1 |
| 11***C1 | Case, Operator'S Manual | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : R.H. Cab Door Full Height
| 10***62 | Pin, Cotter | 2 |
| 10***73 | Pin, Cotter | 3 |
| 11***83 | Clevis | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : R.H. Cab Door Low Profile - S/N 203163-203886
| 10***62 | Pin, Cotter | 2 |
| 10***73 | Pin, Cotter | 3 |
| 11***83 | Clevis | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : R.H. Cab Door Low Profile - S/N 203887 And Up
| 10***73 | Pin, Cotter | 1 |
| 12***61 | Nut, Hex - No. 10-24 | 1 |
| 12***91 | Washer, Plain | 6 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Radio Installation Digital Tuner
| 14***91 | Radio Assembly, Am/Fm Stereo | 1 |
| 14***91 | Radio, Am/Fm Cassette Stereo. . . | 1 |
| 14***91 | Radio Installation | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Roadster Operator'S Compartment
| 10***96 | Adhesive, Rubber - 1 Qt. Can | 0 |
| 12***92 | Washer, Flat - 0.25 | 3 |
| 14***91 | Roadster Assembly | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Seat Box
| 12***94 | Washer, Plain | 8 |
| 14***92 | Box Assembly, Seat | 1 |
| 14***H1 | Plate Weldment, Control | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Standard Seat Mounting S/N 203163-203587
| 11***86 | Belt, Seat | 1 |
| 12***91 | Seat Installation, Standard | 1 |
| 12***H2 | Angle, Seat Adjust - R.H | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Standard Seat Mounting S/N 203588 And Up
| 11***86 | Belt, Seat | 1 |
| 12***91 | Seat Installation, Standard | 1 |
| 14***91 | Angle, Seat Belt Anchor | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Suspension Seat Gray Pvc
| 14***60 | Kit, Height Riser Assembly | 1 |
| 14***H1 | Height Riser Latch Assembly | 1 |
| 14***91 | Kit, Handles | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Suspension Seat Gray Rib Fabric/Gray Pvc
| 14***H1 | Height Riser Latch Assembly | 1 |
| 14***91 | Kit, Handles | 1 |
| 14***91 | Kit, Suspension Cover | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Suspension Seat Mounting
| 14***91 | Seat Installation, Suspension | 1 |
| 24***R1 | Bolt, 3/8nc X 1 - Mount Cleaner | 4 |
| 24***R1 | Bolt - Tether To Cab | 2 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Tandem Rear Fenders 13.00-24 Or 14.00-24 Tires
| 12***H1 | Bracket, Step Mounting - 4.29 In | 8 |
| 12***H1 | Strip, Rubber | 4 |
| 13***99 | Washer, Flat | 12 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Tandem Rear Fenders 17.50-25 Tires
| 12***H1 | Bracket, Step Mounting - 4.29 In | 8 |
| 12***H1 | Strip, Rubber | 4 |
| 13***99 | Washer, Flat | 12 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Trim Group
| 11***77 | Washer, Special | 1 |
| 12***82 | Washer, Lock | 10 |
| 12***94 | Washer, Plain | 10 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Window Washer Installation Lower Front Windows
| 12***H1 | Clip, Hose | 2 |
| 12***H1 | Hose - 108 In | 2 |
| 12***H1 | Pump, Windshield Washer | 1 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Superstructure : Windshield Wiper Motor
| 14***91 | Motor Assembly, Windshield Wiper | 2 |
| 14***H1 | Washer, Flat | 1 |
| 14***H1 | Washer, Flat | 1 |
Suspension
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Suspension : All Wheel Drive Front Axle Machines With Front Fenders
| 10***90 | Nut, Hex | 12 |
| 10***89 | Pin, Cotter | 3 |
| 10*** L | Fitting, Grease | 10 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Suspension : All Wheel Drive Front Axle Machines Without Front Fenders
| 10***90 | Nut, Hex | 12 |
| 10***89 | Pin, Cotter | 1 |
| 10*** L | Fitting, Grease | 10 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Suspension : All Wheel Drive Gear Box
| 11***59 | O-Ring | 1 |
| 12***76 | Screw, Self-Locking | 8 |
| 12***14 | Washer, Lock | 4 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Suspension : Front Axle Machines With Front Fenders
| 10***45 | Bolt | 4 |
| 10***90 | Nut, Hex | 12 |
| 10***89 | Pin, Cotter | 4 |
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Suspension : Front Axle Machines Without Front Fenders
| 10***45 | Bolt | 4 |
| 10***90 | Nut, Hex | 12 |
| 10***89 | Pin, Cotter | 4 |
Wheels And Traction
Komatsu : Gd530a/Aw-2b/2c(W/S6d102e S/N 203163-Up) : Wheels And Traction : Wheels And Rims
| 10***90 | Nut, Hex | 32 |
| 11***48 | Clamp, Rim | 32 |
| 12***91 | Tire And Rim Assembly - 14.00 R24 | 6 |
GD530A/AW-2B/2C(W/S6D102E S/N 203163-Up) serial number reference
The PIN plate on Komatsu motor graders is typically located on the right-hand side of the cab on the lower frame, near the operator's window or behind the cab pillar. The prefix is the first three characters of the 17-character ISO PIN stamped on this plate, identifying the manufacturer and model family. If the machine lacks a PIN plate (common on domestic Japan models or pre-2003 exports), use the model designation (GD530A/AW-2B/2C) and serial number on the chassis plate for identification.
| Prefix | Identifies | Notes |
|---|---|---|
| GD530A/AW-2B/2C | Motor Grader with S6D102E Engine | Serial range 203163-Up. Factory parts manuals and service documentation for this specific model/engine/serial combination confirm the designation. No 3-character PIN prefixes are documented in the provided source text for this specific range; the model code itself serves as the primary identifier in the absence of explicit PIN data. |
Frequently asked questions
What engine does the GD530A/AW-2B/2C (S/N 203163-Up) use?
The GD530A/AW-2B/2C motor grader with serial number 203163 and up is powered by the Komatsu S6D102E-1 diesel engine.
What is the operating weight of the GD530A/AW-2B/2C?
The operating weight varies by configuration, typically ranging from 23,000 to 26,000 kg (50,700 to 57,300 lb).
What model replaced the GD530A/AW-2B/2C?
The GD530A/AW-2EY series replaced the GD530A/AW-2B/2C models, featuring updated emissions compliance.
What GD530A/AW-2B/2C(W/S6D102E S/N 203163-Up) owners discuss
What engine powers the GD530A/AW-2B/2C(W/S6D102E S/N 203163-Up) and what are the fluid specifications?
The machine uses the Komatsu S6D102E engine. Fluid specifications include Komatsu EO or equivalent for the engine, Komatsu TO or equivalent for the transmission and torque converter, and Komatsu HO or equivalent for the hydraulic system. Coolant requires Komatsu Super Coolant AF-NAC or equivalent supplemental coolant additive (SCA). Differential and final drive cases use Komatsu TDTO or equivalent oil. Circle drive gear cases require Komatsu HDTF or equivalent oil. Front-wheel-drive gear cases use the same transmission oil as the main transmission. Brake system accumulators and steering circuits use the hydraulic oil specified for the main system. Fuel must meet diesel specifications for ambient temperature and emission tier. Coolant water must be clean and free of minerals; antifreeze must be ethylene glycol based compatible with the SCA system. Supplemental coolant additives must be maintained per factory spec sheet to prevent silicate dropout and liner cavitation. Oil specifications vary by configuration/series depending on specific axle or gear case application.
How does the All-Wheel Drive (AWD) system behave and what are common hydraulic issues?
The AWD system operates in Normal Mode and Aggressive Mode, controlled by the AWD controller and solenoid valves. The system uses a Rexroth AWD pump and hydraulic motor. Common issues include failure to engage AWD due to faulty solenoid cartridges or low hydraulic pressure. The AWD HIC (Hydraulic Integrated Circuit) valve can stick, causing erratic wheel drive behavior. Accumulator precharge pressure must be checked; loss of precharge leads to sluggish AWD engagement and pump cavitation. The four-way swivel block is a frequent leak point for hydraulic fluid. Hydraulic centering and mechanical centering adjustments for the AWD pump are critical for proper function. Heat problems in the hydraulic system often indicate internal leakage in the main system pump or control valves. Test AWD system pressure and flow per shop manual specifications.
What are the typical undercarriage and wear patterns for this motor grader?
The GD530A/AW-2B/2C(W/S6D102E S/N 203163-Up) utilizes a tandem case with either nonplanetary or planetary final drives. Wear patterns include tandem chain stretch, sprocket wear, and final drive bearing failure. Nonplanetary final drives are prone to sprocket wear. Planetary final drives require inspection of the ring gear and planetary assembly. The circle drive mechanism uses shoes and a pinion; vertical adjustment and pinion adjustment are critical to prevent uneven wear. The circle reverse slip clutch can wear, leading to loss of circle reverse power. Ball and socket shims wear over time, affecting blade alignment. Drawbar lift and side shift accumulators lose precharge, causing jerky blade movement. Front wheel alignment and turning radius adjustment must be checked regularly to prevent tire wear. Differential lock/unlock mechanisms can fail due to relief valve issues or oil contamination.
What are the known engine quirks and maintenance requirements for the S6D102E?
The S6D102E engine requires specific engine oil specifications for normal and arctic operation. Coolant system maintenance is critical; use Komatsu Super Coolant AF-NAC or equivalent SCA to prevent liner cavitation. Check coolant conditioner concentration regularly. Air filter service intervals vary by serial number; S/N the OEM part reference and up uses a different air filter than S/N the OEM part reference and down. Engine fan blades and drive belts require inspection for wear and tension. Flywheel dimensional checks are necessary during engine removal to ensure correct pilot sleeve length. Engine support-to-frame and engine support-to-engine bolts must be torqued to standard specifications. Fuel system troubleshooting includes checking injectors and fuel lines for leaks. Cooling system test kits are used to verify coolant condition.
What electrical and sensor issues are common in this model?
Electrical issues often involve the AWD controller programming and solenoid valve circuits. Wiring diagrams are essential for troubleshooting. Battery and alternator maintenance is standard. Diagnostic procedures for electrical systems require checking voltage and electrical power requirements for clutch solenoid valves. The tilt steering console and control levers have electrical connections that can fail. Hydraulic oil swivel block electrical connectors may corrode. AWD electrical system tests are required to diagnose pump and motor issues. Standard value tables for engine in chassis and chassis electrical systems must be referenced.
What should be checked when buying a used GD530A/AW-2B/2C(W/S6D102E S/N 203163-Up)?
Verify the serial number matches S/N 203163-Up range for the GD530A/AW-2B/2C(W/S6D102E) configuration. Check AWD system engagement in both Normal and Aggressive modes. Test hydraulic pressure for the main system, steering, and brakes. Inspect tandem case for chain wear and sprocket condition. Check circle drive for shoe wear and pinion adjustment. Verify S6D102E engine for leaks, smoke, and proper oil pressure. Test ball and socket shims for blade alignment. Check condition of final drives, especially if planetary. Inspect four-way swivel block for leaks. Verify air filter type matches serial number. Check condition of drawbar lift and side shift accumulators.
What are the safety-critical systems and their maintenance notes?
The MICO parking brake and MICO brake valve are safety-critical. The brake pedal linkage and hydraulic brake lines must be inspected for leaks and damage. The steering and brake pump mount and pump itself must be checked for wear. Accumulators in the brake system and drawbar circuits must be tested for precharge pressure. The circle reverse slip clutch must be adjusted to prevent loss of circle control. All components must be properly supported during disassembly and reassembly. Standard tightening torque for bolts and nuts must be followed. Wire ropes for hoisting must be inspected. Coating materials must be applied to prevent corrosion.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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