Komatsumotor grader(no series)
Komatsu GD670A/AW-1(S/N 200840-201999)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu GD670A/AW-1 is a large motor grader in Komatsu's Dresser-heritage GD-series, sold alongside the smaller GD530A-1 and GD650A-1 on the same chassis and running-gear platform, all covered under one factory shop manual for this serial block. This S/N 200840-201999 range runs the mechanically-governed Komatsu S6D114-1 (KDC614T-era) inline-six diesel with a conventional injection pump and no electronic engine control, paired to a Dresser-heritage countershaft power-shift transmission. Komatsu offered it in two drive configurations: the standard A-1 with tandem rear drive, and the AW-1 covered here, which adds a front-drive axle for true all-wheel drive and carries more weight than the A-1 as a result. A confirmed operating weight and exact production calendar years for this specific serial block are not documented in the sources reviewed -- verify exact figures with your dealer. This generation sits ahead of the later electronically-controlled GD670A/AW-2 family in Komatsu's model lineage.
The main change across GD670A generations is engine control: this A-1/AW-1 block keeps a fully mechanical fuel system and analog warning lamps, while the later -2, -2B and -2C generations moved to the electronically-controlled S6D114E-1 engine with its own diagnostics. The countershaft power-shift transmission and circle-and-drawbar grading assembly carry the Dresser engineering that predates Komatsu's later grader designs. In the used and parts market, that mechanical simplicity is the draw: no ECM to fail, easier field diagnosis, and an injection system independent shops can service without factory scan tools. Parts demand centers on wear items under constant load -- circle and drawbar wear plates, tandem final drives, and power-shift clutch packs -- making this generation a steady source of both running machines and salvage components for grading contractors running older fleets.
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 GD670A/AW-1(S/N 200840-201999) specifications
Engine
| Engine model | Komatsu S6D114-1 (614T-series inline-six diesel). This engine covers the factory grouping of GD530A/GD530AW, GD650A/GD650AW and GD670A/GD670AW motor graders for the serial band that includes 200840-201999. It is the mechanically governed predecessor to the later electronically managed S6D114E-1 fitted to the following GD670A/AW-2B/C generation — the two should not be treated as interchangeable. |
| Cylinders | 6, inline |
| Displacement | Not confirmed specifically for the S6D114-1 tier on this serial range. The related 6D114-family block is commonly listed around 8.3 L (approx. 505 cu in) in other S6D114/S6D114E applications — treat as indicative of the engine architecture only, not a confirmed figure for this exact model/serial band. |
| Gross/net power | Not documented for this exact serial range in publicly available factory literature. Verify against the machine's PIN plate with a Komatsu dealer before quoting a figure — do not assume parity with the later -2/-2B/-2C generation, which uses a different engine revision. |
| Emissions tier | Pre-regulation, mechanically governed diesel (no electronic engine management, no aftertreatment). Consistent with the production era of this serial range. |
Weights
| Operating weight | Not documented for this exact serial range in available public specification sources. Configuration (blade width, ballast, tire choice, scarifier/ripper) affects this figure; confirm with a dealer using the machine's serial number. |
| Shipping weight | Not documented for this exact serial range. |
| Ground pressure | Not published for this model. |
Dimensions
| Transport length | Not documented for this exact serial range in available public sources. |
| Transport width | Not documented for this exact serial range. |
| Transport height | Not documented for this exact serial range. |
| Wheelbase | Not documented for this exact serial range. |
| Ground clearance | Not documented for this exact serial range. |
Performance
| Travel speed | Not documented for this exact serial range. The GD530A/GD650A/GD670A family of this era typically used a mechanical power-shift transmission with multiple forward and reverse ranges, but confirmed speed figures for this specific engine/serial band are not available. |
| Gradeability | Not published for this model. |
| Articulation / steering performance | Not documented for this exact serial range. |
Service capacities (summary)
| Fuel tank | Not documented for this exact serial range. Use Komatsu-specified diesel fuel per the operation and maintenance manual for this serial band. |
| Hydraulic system | Not documented for this exact serial range. Komatsu genuine hydraulic oil (HO) per the factory fill chart for this serial band; confirm capacity with a dealer. |
| Engine oil | Not documented for this exact serial range. Komatsu genuine engine oil (EO) per the factory fill chart. |
| Cooling system | Not documented for this exact serial range. |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
GD670A/AW-1(S/N 200840-201999) fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | Not documented in available sources for this exact serial range — verify with OMM or dealer | Komatsu genuine engine oil (EO); grade selected by ambient temperature per Komatsu's engine-oil viscosity chart (typically SAE 10W-30 across a broad range, stepping to SAE 15W-40 in hot climates and lighter multigrades such as 0W-20/5W-30 in cold climates) |
| Cooling system (radiator + engine jacket) | Not documented in available sources for this exact serial range — verify with OMM or dealer | Komatsu genuine antifreeze/coolant (AF-NAC type) mixed with water per the climate-based dilution ratio in the OMM; permanent-type ethylene-glycol coolant |
| Fuel tank | Not documented in available sources for this exact serial range — verify with OMM or dealer | Diesel fuel meeting the engine manufacturer's specification for the S6D114-1/KDC614T engine; grade selected by ambient temperature |
| Power train (transmission) case | Not documented in available sources for this exact serial range — verify with OMM or dealer | Komatsu genuine powertrain/transmission oil (TO); grade by climate per Komatsu's oil-viscosity chart |
| Final drive case, each side | Not documented in available sources for this exact serial range — verify with OMM or dealer | Komatsu genuine gear/axle oil (AXO) or powertrain oil (TO) per the final-drive spec in the OMM; grade by climate |
| Hydraulic tank / hydraulic system | Not documented in available sources for this exact serial range — verify with OMM or dealer | Komatsu genuine hydraulic oil (HO); grade by climate per Komatsu's viscosity chart |
| Circle drive / gear cases (if equipped) | Not documented in available sources for this exact serial range — verify with OMM or dealer | Komatsu genuine gear oil (AXO) per the gear-case spec in the OMM |
| Grease points (chassis, articulation, blade linkage) | Spec only — no reservoir volume applies | Komatsu genuine multipurpose lithium-base grease (G2-LI type); low-temperature grease grade substituted in cold climates per the OMM's grease chart |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Komatsu GD670A/AW-1(S/N 200840-201999) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 50 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 4,000 h |
|
Servicing the GD670A/AW-1(S/N 200840-201999) beyond the schedule
Predictive Maintenance & Fluid Analysis
The S6D114-1 in this AW-1 range runs mechanical injection with no ECM, so there's no fault-code early warning -- scheduled oil sampling is the primary predictive tool. Pull engine oil samples for wear-metal trending in the mechanical injection pump and turbocharger bearing. Sample the countershaft power-shift transmission oil to catch clutch-pack wear before it strands the machine mid-shift. Sample each tandem final-drive case separately, and check hydraulic oil cleanliness for early wear in the circle and blade-lift cylinders.
Corrective & Common Repairs
Common failures on this generation center on the mechanical fuel system and the grading assembly. Expect injection-pump and injector service as the mechanical S6D114-1 ages, plus turbocharger bearing wear from the KDC614T-era unit. On the grading side, circle wear-plates and the drawbar ball-and-socket wear from constant sliding load under the moldboard. AW-1 machines add front-drive-axle king pins and tie-rod ends to the wear list. Power-shift clutch packs and tandem final-drive bearings are the other recurring corrective jobs.
Overhaul & Rebuild Points
Overhaul planning should center on the countershaft power-shift transmission's clutch packs and the tandem final-drive gear sets, both of which see heavy cyclic load in grading work. On AW-1 units, the front-drive axle differential and planetaries need their own rebuild interval, separate from the rear tandems. Engine overhaul on the mechanical S6D114-1 means injection-pump recalibration and turbocharger rebuild rather than ECM reflash. Rebuild the circle drive gear, wear plates, and drawbar ball socket together -- they wear as a set.
Seasonal & Environment Servicing
Cold climates hit the mechanical S6D114-1 hardest: use a block heater and winter-grade fuel to avoid gelling in the mechanical injection lines, since there's no electronic fuel heating strategy to fall back on. Check coolant concentration before freeze season. In hot, dusty grading environments, shorten air-cleaner service and radiator core cleaning, and tighten the circle and drawbar grease interval -- abrasive grit accelerates wear-plate wear faster than hour-meter schedules assume. Recheck front-drive-axle (AW-1) seals after wet-season mud exposure.
GD670A/AW-1(S/N 200840-201999) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 161 623 | Element, Primary Fuel Filter | Fuel system service | Check fitment → |
| 1298 058 H1 | Element, Outer Air Cleaner | Air intake service | Check fitment → |
| 1298 059 H1 | Element, Inner Air Cleaner | Air intake service | Check fitment → |
| 1266 752 H91 | Filter, All-Wheel Drive Hydraulic Oil | Hydraulic service | Check fitment → |
| 1281 326 H91 | Filter, All Wheel Drive Hydraulic Oil | Hydraulic service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
GD670A/AW-1(S/N 200840-201999) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| Engine oil pressure lamp | Engine lubrication pressure has dropped below the safe minimum | Low oil level, clogged oil filter, worn oil pump, or oil pressure switch failure | Stop engine immediately, check oil level and filter condition before restarting |
| Coolant temperature lamp | Engine coolant temperature has exceeded the normal operating range | Low coolant level, clogged radiator core, slipping or damaged fan belt, or thermostat stuck closed | Idle down, let engine cool, check coolant level and radiator fins before continuing work |
| Battery charge lamp | Alternator is not charging the battery circuit | Broken or loose alternator belt, faulty alternator, or wiring fault | Check belt tension and alternator wiring; have charging system tested if lamp stays on with engine running |
| Torque converter oil temperature lamp | Torque converter/transmission oil is overheating | Low transmission oil level, clogged transmission oil cooler, or prolonged high-load operation | Reduce load, let oil temperature drop, check transmission oil level and cooler for restriction |
| Brake oil pressure lamp | Hydraulic pressure for the service brake circuit is below the required minimum | Low brake system oil level, internal leak, or brake charge pump fault | Stop machine safely, do not operate until brake oil level and pressure are checked |
| Air cleaner restriction indicator | Intake air filter element is clogged, restricting airflow to the engine | Dust/debris buildup in the air cleaner element | Inspect and clean or replace the air filter element |
| Parking brake lamp | Parking brake is engaged | Operator-applied parking brake or brake linkage fault leaving it engaged | Confirm parking brake lever position before attempting to move the machine |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
GD670A/AW-1(S/N 200840-201999) attachments & work tools
Moldboard / grading blade
Standard moldboard for this size class runs around 3.7 m (12 ft), with a longer moldboard option near 4.3 m (14 ft) offered on graders of this weight class. The blade mounts to the circle and is positioned by power tilt and lift cylinders for pitch, side-shift, and cutting angle.
Rear ripper
Rear-frame ripper attachment with multiple shanks, raised and lowered by a dedicated ripper cylinder. Used for breaking up hard-packed or frozen material behind the tandem drive, keeping ripper weight over the rear tires for penetration.
Scarifier
Scarifier shank set (front-mounted or mid-mounted depending on configuration) for lighter surface fracturing ahead of grading, run off its own scarifier cylinder. Shanks and points are replaceable wear items.
Front dozer blade
A front-mounted dozer blade option is documented across this grader family's work-equipment/hydraulics circuit, giving push/light-dozing capability in addition to the main moldboard. Confirm hydraulic-line and mounting compatibility for this exact serial range with your dealer before ordering.
Circle/drawbar work-tool mounting
Work tools (moldboard, ripper, scarifier, dozer blade) mount through the circle-and-drawbar assembly rather than a quick-attach coupler. Swapping between rear ripper and rear scarifier, or fitting the optional long moldboard, is a shop-level changeover, not a hydraulic quick-couple.
Blade control hydraulics
Moldboard tilt, lift, side-shift, and the ripper/scarifier cylinders run off the machine's main work-equipment hydraulic circuit; no separate auxiliary hydraulic kit is needed to run the factory-listed tools on this circuit.
All GD670A/AW-1(S/N 200840-201999) assemblies by section
Every catalogued assembly group for the Komatsu GD670A/AW-1(S/N 200840-201999). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Brakes
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Brakes : Brake Valve
| 12***91 | Valve, Brake | 1 |
| 12***91 | Kit, Brake Valve Seal | 1 |
| 12***H1 | Adaptor | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Brakes : Brake Valve Linkage
| 14***H1 | Bolt | 2 |
| 93***R1 | Washer, M8 - Lock | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Brakes : Brakes
| 14***H1 | Seal, Outer Piston | 2 |
| 14***H1 | Seal, Inner Piston | 2 |
| 14***92 | Disc, Friction | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Brakes : Hydraulic Brake Lines
| 11***51 | Switch, Brake Pressure | 2 |
| 12***H1 | Hose | 2 |
| 36***R1 | O-Ring | 6 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Brakes : Parking Brake - F1
| 12***H2 | Disk, Parking Brake | 1 |
| 14***H1 | Bracket, Parking Brake | 1 |
| 14***H1 | Bolt | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Brakes : Parking Brake Caliper
| 12***91 | Caliper, Parking Brake | 1 |
| 14***91 | Pad, Brake | 2 |
| 14***H1 | Bleeder | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Brakes : Parking Brake Lines
| 12***H1 | Hose | 1 |
| 36***R1 | O-Ring | 2 |
| 94***00 | Connector, Str O-Ring To 37? Flare | 1 |
Cooling
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Cooling : Converter Oil Cooler Lines
| 13***55 | Clamp, Cable - Main Harness | 2 |
| 14***H1 | Hose | 1 |
| 14***H1 | Hose | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Cooling : Cooling System
| 12***H1 | Elbow, Radiator | 1 |
| 12***H1 | Hose, Lower Radiator | 1 |
| 12***H1 | Hose, Coolant | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Cooling : Radiator Mounting
| 11***77 | Washer, Special | 2 |
| 12***H1 | Spacer, Fan Pilot | 1 |
| 12***H2 | Rod, Radiator Support - R.H | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Cooling : Radiator/Oil Cooler
| 12***14 | Washer, Lock | 88 |
| 12***H1 | Cap, Radiator | 1 |
| 14***92 | Radiator/Oil Cooler | 1 |
Drive Train
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Drive Train : Charge Pump
| 12***91 | Pump Assembly, Charge | 1 |
| 12***H1 | Screw, Set | 1 |
| 12***H1 | Washer, Star | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Drive Train : Clutch Pack - 1 & 5
| 12***60 | Ring, Retaining | 2 |
| 12***H1 | Ring, Seal | 3 |
| 12***H1 | Ring, Seal | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Drive Train : Clutch Pack - 2 & 6
| 10***71 | Ring, Retaining | 2 |
| 12***60 | Ring, Retaining | 2 |
| 12***H1 | Ring, Seal | 3 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Drive Train : Clutch Pack - 3 & 4
| 10***71 | Ring, Retaining | 2 |
| 12***60 | Ring, Retaining | 2 |
| 12***H1 | Ring, Seal | 3 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Drive Train : Converter & Differential Oil Filter
| 12***82 | Washer, Lock | 4 |
| 12***H2 | Element, Converter & Differential Oil Filter | 1 |
| 12***91 | Filter, All-Wheel Drive Hydraulic Oil | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Drive Train : Converter Oil Filter Lines
| 14***41 | Hose | 1 |
| 15***91 | Elbow, Reducer - 90? | 3 |
| 29***R1 | O-Ring | 4 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Drive Train : Declutch Pedal
| 10***85 | Pin, Cotter | 1 |
| 10***96 | Adhesive, Rubber - 1 Qt. Can | 0 |
| 12***45 | Bearing, Teflon | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Drive Train : Differential Assembly Nospin Differential
| 14***H1 | Cover | 1 |
| 14***H1 | Housing | 1 |
| 14***91 | Gear Set, Pinion And Ring | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Drive Train : Differential Bearing Quills Lock/Unlock
| 13***R1 | Cone, Bearing | 1 |
| 14***H1 | Bolt | 12 |
| 14***H1 | Quill | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Drive Train : Differential Bearing Quills Nospin Differential
| 13***91 | Bearing Assembly | 1 |
| 13***91 | Bearing, Cone | 1 |
| 14***83 | Quill | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Drive Train : Differential Case Assembly Lock/Unlock Differential
| 14***H1 | Bushing, Bleeder | 2 |
| 14***H1 | Screw, Bleed | 2 |
| 14***91 | Breather | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Drive Train : Differential Case Assembly Nospin Differential
| 14***H1 | Bushing, Bleeder | 2 |
| 14***H1 | Screw, Bleed | 2 |
| 14***91 | Breather | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Drive Train : Differential Case Oil Lines Lock/Unlock
| 14***H1 | Adaptor | 1 |
| 14***H1 | Bracket | 2 |
| 14***H1 | Line, Oil | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Drive Train : Drive Line
| 12***H1 | Hose | 1 |
| 12***51 | Dipstick | 1 |
| 12***H1 | Washer, Sealing | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Drive Train : Drive Shaft
| 10***61 | Fitting, Grease | 1 |
| 12***H1 | Kit, Journal & Bearing | 1 |
| 12***91 | Kit, Journal & Bearing | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Drive Train : Final Drive & Tandems With Planetary
| 15***06 | Chain - Single Strand (See Pg 07-098) | 0 |
| 15***06 | Gasket, Liquid - 300 Ml Cartridge | 1 |
| 24***R1 | Bolt, 5/8nc X 1 3/4 - Front Engine Mount Supports | 48 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Drive Train : Final Drive & Tandems Without Planetary
| 15***06 | Gasket, Liquid - 300 Ml Cartridge | 1 |
| 24***R1 | Bolt, 5/8nc X 1 3/4 - Front Engine Mount Supports | 48 |
| 25***R1 | Washer, Flat - Thin | 48 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Drive Train : Final Drive - With Planetary
| 10***61 | Fitting, Grease | 2 |
| 12***92 | Sleeve, Tandem Mounting | 2 |
| 12***93 | Housing, Final Drive - R.H | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Drive Train : Final Drive - Without Planetary
| 10***61 | Fitting, Grease | 2 |
| 12***92 | Sleeve, Tandem Mounting | 2 |
| 12***H3 | Retainer, Bearing | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Drive Train : Front Cover
| 12***H1 | Gasket Eliminator 515 - 50 Ml Tube | 1 |
| 12***H1 | Sleeve, Bore | 3 |
| 12***91 | Cover Assembly, Front | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Drive Train : Input Quill Assembly
| 10***11 | Pin, Cotter | 1 |
| 10***91 | Bearing Assembly | 1 |
| 10***91 | Bearing, Cone | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Drive Train : Main Case
| 11***02 | Plug, Expansion | 1 |
| 13***58 | Baffle, Oil | 1 |
| 13***61 | Case, Main | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Drive Train : Nospin Differential
| 14***91 | Spider Assembly | 1 |
| 14***91 | Clutch Assembly | 2 |
| 14***H1 | Stop | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Drive Train : Output Shaft
| 10***17 | Cone, Bearing | 2 |
| 13***56 | Shaft, Output | 1 |
| 13***57 | Gear, Output | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Drive Train : Planetary Assembly & Ring Gear
| 12***H1 | Washer, Retaining | 1 |
| 12***H1 | Washer, Thrust | 1 |
| 13***64 | Shaft, Input | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Drive Train : Standard Differential Lock/Unlock
| 14***91 | Gear Set, Pinion And Ring | 2 |
| 14***H1 | Screw | 12 |
| 14***H1 | Washer | 12 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Drive Train : Tandem Drive With Planetary Final Drive
| 12***53 | Retainer, Bearing | 4 |
| 12***H1 | Adapter, Pipe | 2 |
| 12***H1 | Seal, Oil | 4 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Drive Train : Tandem Drive Without Planetary Final Drive
| 12***53 | Retainer, Bearing | 4 |
| 12***H1 | Adapter, Pipe | 2 |
| 12***H1 | Seal, Oil | 4 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Drive Train : Torque Converter
| 12***H1 | Hub, Impeller | 1 |
| 12***H1 | Stator | 1 |
| 12***H1 | Hub, Stator | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Drive Train : Transmission & Torque Converter
| 11***59 | O-Ring | 1 |
| 12***84 | Washer, Lock - 1/2 In | 4 |
| 12***H1 | Plate, Drive | 3 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Drive Train : Transmission Control Valve
| 12***H1 | Body, Valve | 1 |
| 12***H1 | Ball | 1 |
| 12***H1 | Spring, Accumulator - Outer | 1 |
Electrical
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Electrical : Air Conditioner/Heater Electrical Wiring
| 11***51 | Grommet | 1 |
| 14***91 | Harness, Heater Wiring | 1 |
| 14***H1 | Resistor Assembly | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Electrical : Alternator - 50 Amp
| 12***H1 | Bushing, Mounting Hinge | 1 |
| 12***H1 | Bolt, Field Coil And Support | 4 |
| 12***H1 | Bearing, Ball | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Electrical : Alternator - 80 Amp
| 12***R1 | Washer, Lock - Ground Screw | 1 |
| 12***H1 | Bushing, Mounting Hinge | 1 |
| 12***H1 | Plug, Bearing Well | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Electrical : Alternator Mounting 80 Amp
| 12***H1 | Nut, Hex - Tighten To 70-80 Ft/Lbs Wet | 1 |
| 12***H1 | Bolt - Tighten To 70 Ft/Lbs Wet | 1 |
| 12***H1 | Bolt - Tighten To 16 Ft/Lbs Wet | 4 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Electrical : Articulation Indicator
| 12***61 | Nut, Hex - No. 10-24 | 2 |
| 12***41 | Washer, Lock | 3 |
| 14***99 | Sending Unit, Articulation Indicator | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Electrical : Awd Electrical System
| 12***H1 | Wiring Harness, Rear Wheel Sensor | 1 |
| 12***H1 | Harness, Front Sensor | 1 |
| 12***H1 | Sensor - R.H. Only (See Pg 08-018) | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Electrical : Awd Wiring Diagram
| 11***C1 | Bar, Buss - 2 Hole | 1 |
| 11***C1 | Breaker, Circuit - 6 A - Auxiliary Blade Float | 1 |
| 12***H1 | Wiring Harness, Rear Wheel Sensor | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Electrical : Battery & Connections
| 10***81 | Rod, Battery Clamp | 3 |
| 12***82 | Washer, Lock | 3 |
| 12***H1 | Cable, Battery - Jumper | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Electrical : Blade Flood Light Installation Halogen Lamps
| 11***C1 | Bar, Buss - 2 Hole | 1 |
| 12***17 | Washer, Shunt Lead To Switch Attaching | 2 |
| 12***14 | Nut, Hex | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Electrical : Cranking Motor
| 11***99 | Nut, Hex - At Solenoid Switch | 1 |
| 12***17 | Washer, Shunt Lead To Switch Attaching | 1 |
| 12***39 | Washer, Lock - At Solenoid Switch | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Electrical : Engine Wiring
| 11***C2 | Switch, Engine Water Temperature | 1 |
| 12***92 | Washer, Flat - 0.25 | 2 |
| 12***H2 | Switch, Magnetic | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Electrical : Front Bar Head Light Installation
| 11***C1 | Bar, Buss - 2 Hole | 1 |
| 12***17 | Washer, Shunt Lead To Switch Attaching | 2 |
| 12***R1 | Washer, Lock - Ground Screw | 3 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Electrical : Horn Installation
| 12***H1 | Cable, Ground | 1 |
| 19***H2 | Nut, Horn | 1 |
| 25***R1 | Washer, Hardened | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Electrical : Master Disconnect Switch
| 12***H1 | Cable, Battery - Jumper | 1 |
| 12***H2 | Key | 1 |
| 12***H1 | Boot, Terminal Stud | 4 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Electrical : Rear Wiring
| 10***99 | Stud, Weld | 2 |
| 11***86 | Horn, Backup | 1 |
| 12***R1 | Washer, Lock - Ground Screw | 4 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : 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 : Gd670a/Aw-1(S/N 200840-201999) : Electrical : Sending Units
| 11***C2 | Switch, Engine Water Temperature | 1 |
| 11***51 | Switch, Brake Pressure | 1 |
| 12***H1 | Sending Unit, Engine Water Temperature | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Electrical : Single Beam Halogen Lamp
| 12***H2 | Bulb | 1 |
| 12***H1 | Reflector, Lens | 1 |
| 12***H1 | Gasket | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Electrical : Steering Console Wiring
| 11***C1 | Flasher, Turn Signal | 1 |
| 12***61 | Nut, Hex - No. 10-24 | 2 |
| 12***R1 | Washer, Lock - Ground Screw | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Electrical : Tail Lights
| 12***91 | Lights, Tail - L.H | 1 |
| 12***91 | Lights, Tail - R.H | 1 |
| 14***71 | Lens, Stop & Tail | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Electrical : Turn Signal Lamp
| 11***C1 | Connector, Male | 1 |
| 12***91 | Lamp, Turn Signal | 1 |
| 12***91 | Lamp Assembly, Turn Signal | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Electrical : Under Cab Wiring
| 11***51 | Switch, Brake Pressure | 1 |
| 12***H1 | Diode - Bulb Test Circuit | 1 |
| 12***H1 | Plate, Switch Mounting | 1 |
Engine
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Engine : Accessories
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Engine : Cooling System
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Engine : Cylinder Block
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Engine : Cylinder Head
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Engine : Electrical System
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Engine : Engine Mounting
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Engine : Fuel System
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Engine : Gasket Sets And Repair Kits
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Engine : Lubricating Oil System
Frame
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : 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 : Gd670a/Aw-1(S/N 200840-201999) : 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 : Gd670a/Aw-1(S/N 200840-201999) : Frame : Main Frame
| 12***H1 | Pin, Articulation Cylinder | 4 |
| 12***91 | Frame Weldment - Rear | 1 |
| 13***45 | Pin, Hitch | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Frame : Pusher Plate
| 12***84 | Washer, Lock - 1/2 In | 2 |
| 15***02 | Cover | 1 |
| 15***03 | Gasket | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Frame : Transmission Guard
| 15***98 | Guard Installation, Transmission | 1 |
| 16***71 | Guard, Transmission | 1 |
| 33***86 | Washer, Lock | 8 |
Hydraulics
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Accumulator
| 12***H1 | Body | 1 |
| 12***H1 | Cap, Gas End | 1 |
| 12***H1 | Piston | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Articulation Cylinder
| 10***51 | Ring, Clamp | 1 |
| 12***91 | Kit, Cylinder Seal | 1 |
| 14***04 | Ring, Piston Sealing | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Articulation Joint Hydraulic Clamping
| 12***H1 | Clamp, Hydraulic Hose | 2 |
| 12***H1 | Clamp, Hose - 3-Piece Set | 2 |
| 14***H1 | Support, Hose | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Awd 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 : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Awd Hydraulic Oil Tank
| 11***01 | Elbow, Street - 90 Degree | 1 |
| 11***55 | Strainer, Tank | 1 |
| 14***62 | Strainer, Suction | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Awd Motor
| 13***39 | Kit, Rotating Group | 1 |
| 13***40 | Seal, Shaft | 1 |
| 13***41 | Pin | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Awd Pump
| 12***91 | Pump, All-Wheel Drive | 1 |
| 12***H1 | Housing | 1 |
| 12***H1 | Bolt | 4 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Awd Pump & Transfer Case
| 13***91 | Bolt - Case To Transmission - 1.25 In. Long | 4 |
| 15***67 | Gasket | 1 |
| 15***33 | Hose | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Awd Pump Hydraulic Control
| 12***91 | Control Assembly, Piston | 1 |
| 13***03 | Kit, Seal | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Awd Pump Rotary Group
| 13***03 | Kit, Seal | 1 |
| 13***81 | Rotary Assembly | 1 |
| 13***82 | Plate, Control | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Basic Hydraulics Awd - Hic Valve To Motors
| 10***93 | Tie | 4 |
| 12***H1 | Clamp, Hose | 2 |
| 12***H1 | Clip | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Basic Hydraulics Awd - Pump To Hic Valve
| 10***34 | Valve, Check | 1 |
| 10***99 | Stud, Weld | 6 |
| 11***10 | Flange, Split | 4 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Basic Hydraulics Awd - Tank To Oil Cooler
| 10***98 | Cooler, Oil | 1 |
| 12***82 | Washer, Lock | 4 |
| 12***H1 | Hose | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Basic Hydraulics Brake Lines
| 12***H1 | Hose | 1 |
| 12***H1 | Clamp, Accumulator | 4 |
| 12***H1 | Tube | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Basic Hydraulics Pressure Lines
| 12***18 | Clamp, Hose | 2 |
| 12***H1 | Hose | 1 |
| 12***H1 | Bracket, Clamp | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Basic Hydraulics Return Lines
| 12***H1 | Hose | 1 |
| 12***H1 | Hose | 1 |
| 12***H1 | Bracket, Clamp | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Basic Hydraulics Sensing Lines
| 12***H1 | Coupling, Quick Disconnect | 1 |
| 12***H1 | Hose | 1 |
| 14***H1 | Hose | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Basic Hydraulics Steering Lines
| 12***82 | Washer, Lock | 4 |
| 12***H1 | Hose | 1 |
| 12***H1 | Hose | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Brake Check Valve
| 12***91 | Valve Assembly, Brake Check | 1 |
| 12***H1 | Valve, Check | 2 |
| 12***H1 | Kit, Seal | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Check & Counterbalance Valve Mounting
| 12***H1 | Spacer, Valve | 2 |
| 25***R1 | Bolt, Lamp Mounting | 2 |
| 26***R1 | Bolt - For 2 Dual Counterbalance Valves | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Circle Reverse Actuator Lines
| 12***H1 | Hose | 1 |
| 14***H1 | Hose | 2 |
| 27***R1 | Clamp, Cable | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Circle Reverse Motor
| 12***91 | Motor, Circle Reverse | 1 |
| 12***H1 | Bolt | 6 |
| 12***H1 | Race, Bearing | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Control Valve - L.H. Bank
| 10***26 | Nut, Regular Hexagon (3/8 - 24 Unf) | 2 |
| 14***91 | Valve, Control - L.H. - 7 Valve Bank | 1 |
| 14***91 | Inlet Section | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Control Valve - R.H. Bank
| 10***26 | Nut, Regular Hexagon (3/8 - 24 Unf) | 2 |
| 12***H1 | Bar, Cab Top - L.H | 1 |
| 14***91 | Valve, Control - R.H. - 7 Valve Bank | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : 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 : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Drawbar Lift Accumulator
| 10***99 | Stud, Weld | 8 |
| 12***H1 | Hose (See Pg 10-040) | 0 |
| 12***H1 | Hose (See Pg 10-034) | 0 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Drawbar Lift Actuator Lines
| 12***H1 | Hose | 2 |
| 12***H1 | Hose | 2 |
| 12***H1 | Hose (See Pg 10-040) | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Drawbar Lift Cylinder
| 10***51 | Ring, Clamp | 1 |
| 14***04 | Ring, Piston Sealing | 1 |
| 14***05 | Ring, Piston Wear | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Drawbar Side Shift Accumulator
| 12***H1 | Hose (See Pg 10-044) | 0 |
| 12***H1 | Clamp, Accumulator | 4 |
| 12***91 | Accumulator Installation, Drawbar Side Shift | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Drawbar Side Shift Actuator Lines
| 12***H1 | Hose | 1 |
| 12***H1 | Hose | 1 |
| 12***H1 | Hose (See Pg 10-044) | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Drawbar Side Shift Cylinder
| 10***51 | Ring, Clamp | 1 |
| 14***04 | Ring, Piston Sealing | 1 |
| 14***05 | Ring, Piston Wear | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Dual Counterbalance & Relief Valve Drawbar Lift
| 12***H1 | Cartridge, Counterbalance | 2 |
| 12***H1 | Kit, Seal | 1 |
| 12***H1 | Cartridge, Relief Valve | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Dual Counterbalance Valve Articulation & Drawbar Shift
| 12***91 | Valve, Dual Counterbalance | 2 |
| 12***H1 | Cartridge, Counterbalance | 2 |
| 12***H1 | Kit, Seal | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Dual Pilot Check & Relief Valve Scarifier
| 12***91 | Valve, Dual Pilot Check & Relief | 2 |
| 12***H1 | Cartridge, Pilot Check | 2 |
| 12***H1 | Kit, Seal | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Dual Pilot Check Valve Leaning Wheel, Moldboard Tilt & Ripper
| 12***91 | Valve, Dual Pilot Check | 0 |
| 12***H1 | Cartridge, Pilot Check | 2 |
| 12***H1 | Kit, Seal | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Four-Way Swivel Block Moldboard Shift & Power Tilt
| 12***H1 | Seal | 5 |
| 14***87 | Swivel Block, Four-Way | 1 |
| 31***31 | Ring, Retaining | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Hic Valve
| 12***H1 | Plug | 4 |
| 12***92 | Valve, Ihc | 1 |
| 13***00 | Ring, Back-Up | 4 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : 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 : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Hydraulic Oil Tank
| 14***62 | Strainer, Suction | 1 |
| 14***23 | Gasket, Tank Cover | 1 |
| 14***91 | Tank, Hydraulic Oil | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Hydraulic Pump Mounting
| 12***H1 | Sleeve, Pump Drive | 1 |
| 22***R1 | O-Ring | 1 |
| 23***R1 | Ring, Retaining | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Hydraulic System Pump
| 12***92 | Pump, Hydraulic | 1 |
| 12***91 | Compensator Assembly | 1 |
| 13***99 | Bearing, Needle | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Junction Block
| 12***92 | Block, Junction | 1 |
| 12***91 | Valve, Lock Pin Solenoid | 1 |
| 12***H1 | Kit, Seal | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Leaning Wheel Cylinder
| 10***51 | Ring, Clamp | 1 |
| 12***91 | Kit, Cylinder Seal | 1 |
| 14***04 | Ring, Piston Sealing | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Lock Pin Cylinder
| 10***55 | Ring, Retaining | 1 |
| 14***04 | Ring, Piston Sealing | 1 |
| 14***05 | Ring, Piston Wear | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Lock Pin Cylinder Actuator Lines
| 12***H1 | Hose | 2 |
| 12***R1 | Clamp, Tube | 2 |
| 24***R1 | Screw | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Lock/Unlock Differential Control & Relief Valve
| 11***45 | O-Ring | 1 |
| 14***92 | Valve, Directional Control | 1 |
| 14***91 | Cartridge, Relief Valve | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Lock/Unlock Differential Control Valve
| 11***45 | O-Ring | 1 |
| 14***H1 | Coil, Solenoid | 1 |
| 14***92 | Valve, Directional Control | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Lock/Unlock Differential Hydraulic Pump
| 12***94 | Seal, Oil - .5 In. Id, 1.12 In. D, .25 In. W | 1 |
| 14***91 | Pump, Lock/Unlock Differential Hydraulic | 1 |
| 14***H1 | Shaft, Drive | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Lock/Unlock Differential Hydraulic Pump Mounting
| 11***37 | Belt, Lock/Unlock Differential Pump Drive | 1 |
| 14***H2 | Bracket, Pump Mounting | 1 |
| 14***H1 | Bushing, Pump Pulley | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Lock/Unlock Differential Hydraulic System
| 10***13 | Hose Assembly | 2 |
| 12***H1 | Coupling, Quick Disconnect | 1 |
| 12***H1 | Hose | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Moldboard Float Valve
| 12***H1 | Spring | 2 |
| 12***H1 | Kit, O-Ring | 1 |
| 12***91 | Valve, Moldboard Float | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Moldboard Float Valve Installation
| 10***71 | Elbow - 45 Degree | 2 |
| 11***C1 | Bar, Buss - 2 Hole | 1 |
| 11***C1 | Breaker, Circuit - 6 A - Auxiliary Blade Float | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Moldboard Shift Cylinder
| 10***51 | Ring, Clamp | 1 |
| 12***91 | Kit, Cylinder Seal | 1 |
| 12***91 | Cylinder Weldment | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Moldboard Shift Cylinder Actuator Lines
| 11***42 | Clamp, Tube | 2 |
| 12***82 | Washer, Lock | 4 |
| 12***H1 | Hose | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Moldboard Tilt Cylinder
| 12***91 | Cylinder Weldment | 1 |
| 12***91 | Cylinder Assembly, Moldboard Power Tilt | 2 |
| 14***53 | Rod Weldment, Piston | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Moldboard Tilt Cylinder Actuator Lines
| 11***42 | Clamp, Tube | 2 |
| 12***H1 | Hose | 2 |
| 12***H1 | Hose | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : 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 : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Optional Control Levers Scarifier
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Orbitrol Control Unit
| 12***91 | Control Unit, Orbitrol | 1 |
| 12***H1 | Pin, Centering | 1 |
| 12***H1 | Kit, Centering Spring | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Rear Auxiliary Actuator Lines
| 12***H1 | Hose | 1 |
| 12***H1 | Hose | 1 |
| 12***H1 | Spacer, Valve | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Ripper Cylinder
| 10***55 | Ring, Retaining | 1 |
| 10***45 | Ring, Back-Up | 1 |
| 12***H1 | Nut, Lock - Tighten To 500 Ft/Lbs Wet | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Ripper Cylinder Actuator Lines
| 12***H1 | Hose | 2 |
| 12***H1 | Plate, Valve Mounting | 1 |
| 14***71 | Protector | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Scarifier Cylinder
| 10***51 | Ring, Clamp | 1 |
| 11***28 | Piston | 1 |
| 11***30 | Retainer, Piston Seal | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Scarifier Cylinder Actuator Lines
| 12***H1 | Hose | 1 |
| 12***H1 | Hose | 1 |
| 12***H1 | Hose | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Solenoid Valve Cartridge
| 12***91 | Kit, Seal | 1 |
| 12***91 | Cartridge, Valve | 1 |
| 12***91 | Cartridge, Solenoid Valve | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Steering & Brake Pump
| 12***91 | Pump, Steering & Brake | 1 |
| 12***H1 | Washer | 1 |
| 12***H1 | Washer, Thrust | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Steering & Brake Pump Mounting
| 12***H1 | Gear | 1 |
| 12***H1 | Nut, Hex - Tighten To 137-167 Ft/Lbs Wet | 1 |
| 12***H1 | Gasket, Accessory Drive | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Steering Cylinder
| 14***58 | Ring, Back-Up | 1 |
| 14***45 | Ring, Piston Sealing | 1 |
| 14***45 | Ring, Piston Wear | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Transfer Case
| 10***71 | Ring, Retaining | 1 |
| 10***38 | Cup, Bearing | 2 |
| 11***50 | Bearing, Ball | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Valve Section Circle Reverse
| 13***01 | Screw, Socket Head | 2 |
| 14***H1 | Cap | 1 |
| 14***H1 | End, Spool | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Valve Section L.H. Drawbar Lift & Moldboard Shift
| 13***01 | Screw, Socket Head | 2 |
| 14***H1 | Cap | 1 |
| 14***H1 | End, Spool | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Valve Section Leaning Wheel
| 13***01 | Screw, Socket Head | 2 |
| 14***H1 | Cap | 1 |
| 14***H1 | End, Spool | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Valve Section Moldboard Tilt
| 13***01 | Screw, Socket Head | 2 |
| 14***H1 | Cap | 1 |
| 14***H1 | End, Spool | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Valve Section Optional - L.H. Bank
| 13***01 | Screw, Socket Head | 2 |
| 14***H1 | Cap | 1 |
| 14***H1 | End, Spool | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Valve Section Optional - R.H. Bank
| 13***01 | Screw, Socket Head | 2 |
| 14***H1 | Cap | 1 |
| 14***H1 | End, Spool | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Valve Section R.H. Drawbar Lift, Drawbar Side Shift & Articulation
| 13***01 | Screw, Socket Head | 2 |
| 14***H1 | Cap | 1 |
| 14***H1 | End, Spool | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Hydraulics : Valve Section Scarifier Or Ripper - F1
| 13***01 | Screw, Socket Head | 2 |
| 14***91 | Valve Section | 1 |
| 14***H1 | Cap | 1 |
Instruments
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Instruments : Cab Switch Panel
| 11***C1 | Bar, Buss - 4 Hole | 1 |
| 12***17 | Washer, Shunt Lead To Switch Attaching | 8 |
| 12***91 | Washer, Plain | 4 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Instruments : Console Switch Panel
| 11***C1 | Bar, Buss - 2 Hole | 1 |
| 11***C1 | Bar, Buss - 3 Hole | 1 |
| 11***C1 | Bar, Buss - 4 Hole | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Instruments : Gauge Cluster
| 11***C1 | Voltmeter | 1 |
| 11***C1 | Gauge, Fuel | 1 |
| 12***C1 | Bezel | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Instruments : Lock/Unlock Differential Indicator
| 11***C1 | Bar, Buss - 2 Hole | 1 |
| 11***C1 | Breaker, Circuit - 6 A - Auxiliary Blade Float | 1 |
| 12***91 | Light, Pilot - Differential Lock On - Green | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Instruments : Steering Console Instrument Panel
| 12***H2 | Diode Board - Bulb Check | 1 |
| 12***H2 | Gauge, Articulation | 1 |
| 12***H1 | Switch, Saddle Pin | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Instruments : Tachometer Installation
| 12***C1 | Sensor, Tachometer | 1 |
| 12***91 | Tachometer, Electric | 1 |
| 12***91 | Tachometer Installation | 1 |
Miscellaneous
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Miscellaneous : Belts And Filters
| 11***37 | Belt, Lock/Unlock Differential Pump Drive | 1 |
| 12***H1 | Element, Corrosion Resistor | 1 |
| 12***H1 | Filter, Cab Vent | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Miscellaneous : Decals Gd670a-1
| 09***00 | Decal, "Komatsu" (Front Edge Of Decks) | 2 |
| 09***00 | Plate? Mark,Komatsu | 1 |
| 09***15 | In Komatsu In On Grill | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Miscellaneous : Decals Gd670aw-1
| 09***00 | Decal, "Komatsu" (Front Edge Of Decks) | 2 |
| 09***00 | Plate? Mark,Komatsu | 1 |
| 09***15 | In Komatsu In On Grill | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Miscellaneous : Fire Extinguisher
| 12***92 | Washer, Flat - 0.25 | 4 |
| 12***91 | Channel Weldment | 1 |
| 18***16 | Bolt - 0.250-20 X 0.50 | 4 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Miscellaneous : Manual Case
| 10***R2 | Manual, Safety | 1 |
| 11***C1 | Case, Operator'S Manual | 1 |
| 11***C1 | Chain, Beaded | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Miscellaneous : Scarifier Tooth Storage
| 15***91 | Bracket Weldment | 1 |
| 15***92 | Lock, Bar | 1 |
| 16***45 | Retainer Weldment, Shank | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Miscellaneous : Tool Box & Tools
| 12***88 | Kit, Tool | 1 |
| 12***91 | Adapter - Test Port To Zerk | 1 |
| 29***00 | Wrench, Axle Nut | 1 |
Mounted Equipment
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Mounted Equipment : 1/2 Inch Extension For 7/8 Inch Moldboard For 12 Ft. Or 13 Ft. Moldboard
| 12***91 | Kit, 2 Ft. Moldboard Extension - R.H | 1 |
| 12***91 | Kit, 2 Ft. Moldboard Extension - L.H | 1 |
| 12***H1 | Extension, Moldboard - R.H | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Mounted Equipment : 1/2 Inch Extension For 7/8 Inch Moldboard For 14 Ft. Moldboard
| 12***91 | Kit, 2 Ft. Moldboard Extension - R.H | 1 |
| 12***91 | Kit, 2 Ft. Moldboard Extension - L.H | 1 |
| 12***H1 | Extension, Moldboard - R.H | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : 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 : Gd670a/Aw-1(S/N 200840-201999) : Mounted Equipment : 7/8 Inch Moldboard 14 Ft. 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 : Gd670a/Aw-1(S/N 200840-201999) : Mounted Equipment : Circle Reverse Gear
| 12***91 | Gear Assembly, Circle Reverse | 1 |
| 14***45 | Plate, Mounting | 1 |
| 14***17 | Gasket | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Mounted Equipment : Circle Reverse Gear Case
| 12***H1 | Seal, Oil | 1 |
| 26***33 | Cup, Bearing | 1 |
| 28*** A | Shim - 0.003 In. (0.076 mm) | 3 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Mounted Equipment : Circle Reverse Gear Case With Slip Clutch
| 12***H1 | Seal, Oil | 1 |
| 14***91 | Gear Case Assembly, Circle Reverse | 1 |
| 26***33 | Cup, Bearing | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Mounted Equipment : Circle Reverse Slip Clutch
| 12***H1 | Plate, Friction | 7 |
| 12***H1 | Plate, Separator | 8 |
| 12***H1 | V-Ring | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Mounted Equipment : Drawbar & Circle
| 10***85 | Pin, Cotter | 2 |
| 10***61 | Fitting, Grease | 8 |
| 10***62 | Fitting, Grease - 90 Degree | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : 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 : Gd670a/Aw-1(S/N 200840-201999) : Mounted Equipment : Non-Lube Drawbar & Circle
| 10***85 | Pin, Cotter | 2 |
| 10***62 | Fitting, Grease - 90 Degree | 2 |
| 12***84 | Washer, Lock - 1/2 In | 16 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : 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 : Gd670a/Aw-1(S/N 200840-201999) : Mounted Equipment : Power Tilt Moldboard Carrier
| 10***10 | Pin, Cotter | 4 |
| 10***61 | Fitting, Grease | 2 |
| 12***H2 | Wear Pad | 4 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Mounted Equipment : Reversible Overlay End Bit Installation For - 5/8 In X 6 In Cutting Edge
| 12***91 | End Bit Installation, Reversible Overlay | 1 |
| 12***H1 | Bit, Reversible Overlay End | 2 |
| 33***87 | Washer, Lock | 12 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Mounted Equipment : Reversible Overlay End Bit Installation For - 5/8 In X 8 In Cutting Edge
| 12***91 | End Bit Installation, Reversible Overlay | 1 |
| 12***H1 | Bit, Reversible Overlay End | 2 |
| 33***87 | Washer, Lock | 12 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : 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 : Gd670a/Aw-1(S/N 200840-201999) : Mounted Equipment : Scarifier
| 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 : Gd670a/Aw-1(S/N 200840-201999) : Power : Accelerator/Decelerator Control Linkage
| 12***14 | Washer, Lock | 1 |
| 12***R1 | Washer, Lock - Ground Screw | 5 |
| 12***H2 | Washer, Nylon Bearing | 0 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Power : Air Cleaner
| 12***H1 | Cover Assembly | 1 |
| 12***91 | Air Cleaner | 1 |
| 12***H1 | Element, Outer Air Cleaner | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Power : Air Intake System
| 12***R1 | Washer, Lock - Ground Screw | 2 |
| 12***82 | Washer, Lock | 4 |
| 12***H1 | Band Assembly, Air Cleaner | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Power : Ether Injection Starting Aid
| 11***C1 | Bar, Buss - 2 Hole | 1 |
| 12***14 | Washer, Lock | 4 |
| 12***17 | Washer, Shunt Lead To Switch Attaching | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Power : Exhaust System
| 12***82 | Washer, Lock | 2 |
| 12***H1 | Tube, Exhaust - Full Height Cab | 1 |
| 12***H1 | Muffler | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Power : Floor Plate
| 10***96 | Adhesive, Rubber - 1 Qt. Can | 0 |
| 12***45 | Bearing, Teflon | 2 |
| 12***H1 | Spring, Pedal Return | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Power : Fuel & Hydraulic Tank Drain Hose
| 16***18 | Hose Assembly (1/2 X 40 In. Long) | 1 |
| 25***C1 | Connector | 1 |
| 66***50 | Hose | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Power : Fuel Lines
| 12***H1 | Hose | 1 |
| 14***H1 | Hose | 1 |
| 14***H1 | Valve | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Power : Fuel Tank
| 10***96 | Adhesive, Rubber - 1 Qt. Can | 0 |
| 11*** A | Cap, Fuel Tank | 1 |
| 12***37 | Strainer, Fuel | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Power : Governor Control Tube Spring
| 12***91 | Tube Weldment | 1 |
| 12***H1 | Spring | 1 |
| 12***91 | Spring Assembly, Governor Control Tube | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Power : Lockable Oil Fill & Dipstick Installation
| 12***H2 | Cap, Oil Filler | 1 |
| 12***H1 | Seal, Fastener | 2 |
| 12***H1 | Strap, Oil Fill Retainer | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Power : Shift Console
| 12***92 | Washer, Flat - 0.25 | 18 |
| 12***H1 | Lever, Throttle Control | 1 |
| 12***H1 | Spacer, Throttle Control | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Power : Throttle Control
| 12***R1 | Washer, Lock - Ground Screw | 3 |
| 12***H3 | Bracket | 1 |
| 12***H2 | Lever, Throttle | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Power : Transmission Shifter
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Power : Turbo Lube
| 11***26 | Adaptor, Reducing | 1 |
| 12***91 | Kit, Turbocharger Lube | 1 |
| 12***H1 | Support | 1 |
Steering
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Steering : Steering Column
| 12***91 | Column, Steering | 1 |
| 14***H1 | Kit, Horn Brush Replacement | 1 |
| 44***56 | Ring, Retaining | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Steering : Steering Console
| 10***59 | Screw, Set | 2 |
| 10***R1 | Ring, Retaining | 4 |
| 11***C1 | Flasher, Turn Signal | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Steering : Steering Console Control Levers
| 10***96 | Adhesive, Rubber - 1 Qt. Can | 0 |
| 12***14 | Washer, Lock | 16 |
| 12***45 | Bearing | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Steering : Steering Control Assembly
| 12***91 | Bracket Weldment, Steering Mounting - L.H | 1 |
| 12***91 | Bracket Weldment, Steering Mounting - R.H | 1 |
| 14*** H | Bolt - Tighten To 43 ?3 Ft/Lbs Wet | 4 |
Superstructure
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Air Conditioner Compressor Mounting
| 12***14 | Washer, Lock | 1 |
| 12***76 | Nut, Hex | 1 |
| 12***77 | Nut, Mounting - 3/8-16 Hex | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Air Conditioner Lines
| 10***99 | Stud, Weld | 1 |
| 12***14 | Washer, Lock | 6 |
| 12***76 | Nut, Hex | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Blower Assembly
| 14***91 | Motor Assembly | 2 |
| 14***H1 | Housing, Blower | 1 |
| 14***H1 | Motor | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Cab Assembly
| 11***C1 | Bolt, Latch | 2 |
| 12***02 | Grommet, Top Lights | 2 |
| 12***91 | Washer, Plain | 8 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Cab Dome Light
| 12***22 | Nut-Hex Mach, 8-32 Znd 1 | 2 |
| 12***91 | Light, Cab Dome | 1 |
| 12***91 | Light Installation, Dome | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Cab Glass
| 12***H2 | Glass, Rear | 1 |
| 12***H2 | Glass, Side - Top | 2 |
| 12***H2 | Glass, Side - Bottom | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Cab Installation
| 11***85 | Mount, Rubber | 4 |
| 12***H1 | Washer, Special - Rops | 2 |
| 12***H1 | Washer, Special - Rops | 4 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Cab Steps
| 12***H1 | Bracket, Step Mounting - 4.29 In | 8 |
| 12***H1 | Strip, Rubber | 4 |
| 12***91 | Step Weldment, Lower | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Cab Vent
| 12***75 | Nut - Mounting | 8 |
| 12***92 | Washer, Flat - 0.25 | 26 |
| 12***H1 | Bar, Cab Top - R.H | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Defroster Fan Front & Rear
| 11***C1 | Blade, Fan | 1 |
| 11***C1 | Washer, Flat | 4 |
| 11***C1 | Motor, Fan | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Enclosed Cab Door - L.H.
| 10***62 | Pin, Cotter | 4 |
| 11***83 | Clevis | 3 |
| 12***91 | Washer, Plain | 8 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Enclosed Cab Door - R.H.
| 10***62 | Pin, Cotter | 4 |
| 11***83 | Clevis | 3 |
| 12***91 | Washer, Plain | 8 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Front & Rear Wiper Installation Pantograph Arm
| 12***92 | Washer, Flat - 0.25 | 2 |
| 12***H1 | Arm, Wiper | 2 |
| 12***H1 | Blade, Wiper | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Front & Rear Wiper Installation Straight Arm
| 12***H1 | Blade, Wiper | 2 |
| 12***H1 | Arm, Wiper | 2 |
| 12***H1 | Spacer | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Heater Assembly
| 10***95 | Plub, Button | 1 |
| 12***82 | Washer, Lock | 2 |
| 12***94 | Washer, Plain | 3 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Heater Control
| 12***91 | Clip, Closed | 6 |
| 12***H1 | Cable, Heater Control (See Pg 13-068) | 0 |
| 12***H1 | Bracket, Valve | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Heater Control Valve
| 12***91 | Valve Assembly, Heater Control | 1 |
| 14***H1 | Valve, Heater | 1 |
| 14***H1 | Bracket, Cable | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Heater Hose Installation
| 10***99 | Stud, Weld | 1 |
| 11***98 | Elbow - 90? | 1 |
| 12***91 | Clip, Closed | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Heater Installation
| 10***96 | Adhesive, Rubber - 1 Qt. Can | 1 |
| 12***92 | Washer, Flat - 0.25 | 5 |
| 12***H1 | Gasket, Heater | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Hinged Lower Front Window
| 11***C1 | Grommet, Rubber | 4 |
| 12***92 | Window, Hinged - L.H | 1 |
| 12***92 | Window, Hinged - R.H | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Hinged Lower Front Window Installation
| 12***61 | Nut, Hex - No. 10-24 | 20 |
| 12***91 | Washer, Plain | 36 |
| 12***92 | Washer, Flat - 0.25 | 4 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Hood Side
| 11***07 | Washer, Lock | 3 |
| 12***14 | Washer, Lock | 4 |
| 12***R1 | Washer, Lock - Ground Screw | 8 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Hood Top
| 12***H1 | Support - R.H. - Optional | 1 |
| 12***H1 | Hold, Hand | 1 |
| 14***92 | Hood Weldment | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : 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 : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Lower Front Wiper Installation
| 12***61 | Nut, Hex - No. 10-24 | 4 |
| 12***75 | Nut - Mounting | 4 |
| 12***91 | Washer, Plain | 8 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Mirror Installation West Coast
| 12***77 | Nut, Mounting - 3/8-16 Hex | 2 |
| 12***H1 | Head, Mirror | 1 |
| 12***H1 | Arm, Bow | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Operators Seat Complete Assembly
| 11***C1 | Bracket - L.H | 1 |
| 11***C1 | Bracket - R.H | 1 |
| 11***C1 | Bolt, Tilt Back | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Sound Insulation & Floor Mats
| 12***92 | Washer, Flat - 0.25 | 8 |
| 12***94 | Washer, Plain | 2 |
| 12***91 | Cover, Front Wipers | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Standard Seat Mounting
| 11***86 | Belt, Seat | 1 |
| 12***91 | Seat Installation, Standard | 1 |
| 12***H2 | Angle, Seat Adjust - R.H | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Suspension Seat Lower Suspension
| 11***C1 | Pad, Spring | 1 |
| 11***C1 | Spring, Weight Adjustment | 1 |
| 11***C1 | Washer, Spring | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Suspension Seat Mounting
| 11***91 | Belt, Seat | 1 |
| 12***91 | Seat Installation, Suspension | 1 |
| 28***R1 | Washer, Hardened - 3/8 In | 4 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Suspension Seat Seat Adjuster
| 11***C1 | Latch - L.H | 1 |
| 11***C1 | Latch - R.H | 1 |
| 11***C1 | Rod, Latch | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Trim Group
| 12***82 | Washer, Lock | 10 |
| 12***94 | Washer, Plain | 10 |
| 12***H1 | Support - R.H. - Optional | 8 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Under Seat Air Conditioner/Heater Evaporator
| 12***H1 | Grill, Heater Outlet | 1 |
| 14***H1 | Housing | 1 |
| 14***H1 | Cover | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Window Washer Installation Front & Rear
| 12***92 | Washer, Flat - 0.25 | 2 |
| 12***H1 | Nozzle, Jet | 2 |
| 12***H1 | Clip, Hose | 2 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Windshield Washer Installation Lower Front Windows
| 12***H1 | Clip, Hose | 2 |
| 12***H1 | Pump, Windshield Washer | 1 |
| 12***H1 | Valve, Check | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Wiper Motor Pantograph Arm
| 12***H1 | Motor, Wiper | 1 |
| 12***H1 | Ball, Pivot | 1 |
| 12***H1 | Crank, Motor | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Wiper Motor Straight Arm
| 12***H1 | Motor, Wiper | 1 |
| 12***H1 | Ball, Pivot | 1 |
| 12***H1 | Crank, Motor | 1 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Superstructure : Wiper Slave Pivot Kit
| 12***91 | Kit, Wiper Slave Pivot | 2 |
| 12***H1 | Gasket, Slave Pivot | 1 |
| 12***H1 | Washer, Lock | 1 |
Suspension
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Suspension : Awd Front Axle
| 10***90 | Nut, Hex | 12 |
| 10***89 | Pin, Cotter | 3 |
| 10***61 | Fitting, Grease | 10 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Suspension : Awd Gear Box
| 10***24 | Bolt | 3 |
| 11***59 | O-Ring | 1 |
| 12***76 | Screw, Self-Locking | 8 |
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Suspension : Front Axle
| 10***90 | Nut, Hex | 8 |
| 10***89 | Pin, Cotter | 4 |
| 10***61 | Fitting, Grease | 10 |
Wheels And Traction
Komatsu : Gd670a/Aw-1(S/N 200840-201999) : Wheels And Traction : Wheels & Rims
| 10***90 | Nut, Hex | 32 |
| 11***48 | Clamp, Rim | 32 |
| 12***59 | Ring, Side | 1 |
GD670A/AW-1(S/N 200840-201999) serial number reference
The PIN/serial plate on these Komatsu Dresser-era graders is mounted on the frame, typically near the operator's cab; check the factory shop manual's identification page for the exact spot on your unit. The plate stamps the full model designation (GD670A-1 or GD670AW-1) together with the plain numeric serial number - there is no separate alpha prefix ahead of the digits on this generation. Read the model suffix (A vs AW, and the -1 generation marker) alongside the numeric serial to confirm you have the correct range and configuration before ordering parts.
| Prefix | Identifies | Notes |
|---|---|---|
| 200840-201999 | GD670A-1 / GD670AW-1 motor grader | Factory shop manual for this Komatsu Dresser-era family (covering GD530A/AW, GD650A/AW, GD670A/AW-1 generation graders) runs one continuous numeric serial block starting at 200840; the -2 generation break is cited variably as 202000-202002 across catalog listings, so treat the top end as approximate and confirm the exact cutover with your dealer. No separate 3-character alpha PIN prefix applies to this Dresser-heritage numeric-serial family - Komatsu's alpha PIN-prefix scheme came later. Engine is the KDC614T / S6D114-1 diesel per the factory manual for the GD670A/AW series; the later -2B/C variant switches to the different S6D114E-1 engine on its own later serial block and is not part of this range. |
| A-1 / AW-1 (ID-plate designation, not a serial-digit range) | GD670A-1 standard/tandem-drive vs GD670AW-1 all-wheel-drive | AW adds a front-drive axle and its drive hydraulics for all-wheel drive; A is standard tandem-drive only. This is a model-designation split stamped on the plate, not a numeric serial break - both configurations fall inside the 200840-201999 block. Confirm configuration from the ID plate rather than the serial number itself. |
Frequently asked questions
What engine powers the Komatsu GD670A/AW-1 (S/N 200840-201999)?
This serial range uses the Komatsu S6D114-1 (KDC614T-era) inline-six diesel. It is mechanically governed with a conventional injection pump -- there is no electronic control module and no CID/FMI diagnostic codes on this generation.
What is the operating weight of the GD670A/AW-1?
A confirmed operating weight for this exact serial block is not documented in the sources reviewed -- verify with your dealer. The later electronically-controlled GD670A/AW-2 generation on the same chassis family lists operating weight in the roughly 34,000-35,000 lb (about 15,400-15,900 kg) class, which gives a rough sense of scale, but figures vary by configuration and should not be taken as exact for this -1/AW-1 block.
What replaced the Komatsu GD670A/AW-1?
It was succeeded by the GD670A/AW-2 family (2A/2B/2C), which carries the electronically-controlled Komatsu S6D114E-1 engine in place of this generation's mechanical S6D114-1.
What GD670A/AW-1(S/N 200840-201999) owners discuss
What's the reputation of the engine in the GD670A/AW-1 (S/N 200840-201999) grader?
This -1 series grader carries the mechanically-governed KDC614T (S6D114-1) diesel, a Komatsu-Dresser heritage engine with no electronic controls and no fault codes to read. Because injection timing and fuel delivery are set mechanically, the injection pump and injectors drift out of calibration with hours and heat rather than triggering a warning. Rough idle, hesitation under load, or black smoke on acceleration are usually early signs of pump or injector wear rather than a sudden failure. Have your dealer verify injection pump timing and injector condition if these symptoms show up.
What transmission behavior is normal versus a warning sign on this grader?
The power-shift transmission on this generation traces back to Komatsu-Dresser countershaft design and has less shift modulation than later electronically controlled graders. Operators used to this machine back off the throttle and let ground speed drop before reversing direction; forcing a direction change at speed accelerates clutch pack wear. Losing one or two gears (commonly low range) after the machine sits idle for a stretch points to a sticking shift or range valve, or a worn clutch pack, rather than an electronic controller fault, since controller-based shift issues are more associated with later electronic-engine variants of this grader family. Have your dealer verify clutch pack and valve condition before returning the machine to full duty.
Why does the circle feel slow, jerky, or uneven when turning?
Worn seals or scored rods in the circle drive hydraulics reduce pressure and cause uneven rotation, especially after years of heavy blade loading or work in dusty, abrasive conditions. Contaminated or low hydraulic fluid and a worn or clogged control valve produce the same symptom, so fluid condition and filter service history should be checked before condemning a cylinder or motor. Mechanical circle wear (worn shims or wear plates letting the circle rock in its guide) can mimic a hydraulic problem, so a full range-of-motion check with the engine running is the way owners confirm whether the issue is hydraulic or mechanical. Have your dealer verify the source before authorizing cylinder, motor, or valve replacement.
What undercarriage and wear-point patterns are typical for this grader?
Tandem cases need regular checks for trash and dirt buildup around the seals and for oil leaks at the final drive housings; contamination ingress here is a recurring complaint on graders run in rocky or abrasive ground. Articulation joints and the circle guide loosen with hours worked in rough terrain, showing up as blade chatter or inconsistent grading response before any obvious play is visible by hand. Circle wear plates and shims are a routine service item on this design and need periodic adjustment; deferred adjustment lets pinion and ring gear teeth wear unevenly. None of this is unique to the -1 series specifically, it is common across mechanical-generation motor graders of this size class, and the exact interval varies by configuration and operating conditions.
What electrical or gauge issues come up on this generation of grader?
Because this series predates electronic engine and transmission controls, most electrical complaints are simple analog gauge and sender faults rather than sensor/ECM issues: a water temperature gauge reading abnormally low or blank, a fuel gauge that stops tracking, or an hour meter that doesn't move when the engine starts. These usually trace to a bad sender, a corroded ground, or a broken wire at a connector rather than a wiring harness failure. The articulation area is a known spot for wire fatigue since the harness flexes there every time the machine steers; check connections at that joint first when chasing an intermittent gauge or light.
What should I check before buying a used GD670A/AW-1 (S/N 200840-201999)?
Walk the circle through its full range of motion with the engine running and watch for play, uneven pinion wear, or slow/jerky rotation, since circle condition is one of the costliest items to restore. Check tandem cases and final drives for leaks and listen for gear noise, inspect articulation and drawbar joints for looseness, and look under the machine for hydraulic leaks before starting it. Because this is a mechanical, pre-electronic-control generation, there are no fault codes to pull, so engine condition has to be judged by idle quality, smoke color under load, and oil analysis rather than a diagnostic scan. Confirm maintenance records match the actual hour meter reading, and because parts and service literature for this era carry both Komatsu and legacy Dresser references, verify with your dealer that the correct manual and parts source are being used for this exact serial range before relying on any documentation that came with the machine.
Does this grader's Komatsu-Dresser heritage cause any practical headaches for owners?
Owners and shops working on this vintage note that documentation and parts references for this serial range sometimes carry older Dresser-era naming alongside current Komatsu naming, which can cause confusion when cross-referencing manuals or ordering parts. Double-checking part and manual references against the actual serial number and engine tag on the machine, rather than assuming a later -2 series manual applies, avoids ordering the wrong component or following procedures written for the electronic-engine generation. Have your dealer confirm documentation matches this specific serial block before major repair work.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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