Komatsubulldozermedium (d40 - d75)
Komatsu D53A-17(S/N 80001-UP)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu D53A-17 is a mid-size crawler tractor designed for grading, land clearing, and construction site preparation. It is powered by a 6-cylinder Komatsu 6D125-1 engine producing 128 hp (95.4 kW) at 1900 rpm. The machine has an operating weight of 28,219.2 lb (12,800 kg) and features a Torqflow transmission with 3 forward and 3 reverse gears. Standard configurations include a 12.3 ft (3.7 m) wide blade and a 41-shoe undercarriage with 18.12 in (46.2 cm) shoes. Production covers serial numbers 80001 and up, succeeding the D53A-16 and preceding the D53A-18 series.
Across the D53A generation, the primary evolution involved the transition to the 6D125-1 engine series and the implementation of the Torqflow transmission system, replacing earlier planetary gear setups found in the D53A-16. This machine remains significant in the used and parts market due to its durable drivetrain and widespread availability of aftermarket undercarriage components. The D53A-17 serves as a critical reference for fleet managers maintaining older mid-size dozers, with its specific serial range (80001-UP) dictating the exact engine variant and maintenance requirements.
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 D53A-17(S/N 80001-UP) specifications
Engine
| Model | 6D125-1 |
| Number of Cylinders | 6 |
| Displacement | 11041.6 cc (673.8 cu in) |
| Gross Power | 95.4 kW (128 hp) @ 1900 rpm |
Weights
| Operating Weight | 12800.0 kg (28219.2 lb) |
Dimensions
| Length with Blade | 4.79 m (15.64 ft) |
| Width Over Tracks | 2.35 m (7.68 ft) |
| Height to Top of Cab | 2.93 m (9.52 ft) |
| Length of Track on Ground | 2.38 m (7.76 ft) |
| Ground Clearance | 0.34 m (1.12 ft) |
| Track Gauge | 1.89 m (6.17 ft) |
| Standard Shoe Width | 46.2 cm (18.12 in) |
| Number of Shoes per Side | 41 |
| Number of Track Rollers per Side | 5 |
| Track Pitch | 17.5 cm (6.89 in) |
| Number of Carrier Rollers per Side | 2 |
Performance
| Transmission Type | Torqflow (TF) |
| Number of Forward Gears | 3 |
| Number of Reverse Gears | 3 |
Blades
| Standard Blade Width | 3.75 m (12.3 ft) |
| Standard Blade Height | 88 cm (34.5 in) |
Service Capacities
| Fuel Tank Capacity | 240.35 L (63.5 gal) |
| Cooling System Capacity | 55.26 L (14.6 gal) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
Komatsu D53A-17(S/N 80001-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 D53A-17(S/N 80001-UP) beyond the schedule
Predictive Maintenance & Fluid Analysis
Utilize the Komatsu Oil Wear Analysis (KOWA) program at every 500-hour interval to monitor engine oil, hydraulic fluid, and coolant for wear metals and contaminants. Track hydraulic particle counts and viscosity changes to predict pump and valve failures. Monitor KOMTRAX telematics for load frequency and fault codes to adjust service intervals based on actual operating conditions rather than fixed hours alone.
Corrective & Common Repairs
Address frequent undercarriage wear by measuring track pitch and roller diameter during 1000-hour inspections. Replace worn track shoes and segment groups before chain elongation causes sprocket damage. Inspect the 6D125-1 engine for fuel injection timing alignment and fan belt tension. Check hydraulic pump seals and transmission pump assembly for leaks, common failure points in high-hour D53A-17 units.
Overhaul & Rebuild Points
Plan major powertrain overhauls around the 2000-hour milestone, including transmission service and final drive oil changes. Inspect the 6D125-1 engine for cylinder wear and turbocharger condition. Evaluate the undercarriage for complete replacement when track rollers and carrier rollers exceed wear limits. Structural inspections of the chassis and blade pivot points are critical to prevent fatigue failures in heavy-duty applications.
Seasonal & Environment Servicing
In cold climates, ensure coolant concentration meets ASTM standards to prevent freezing and overheating. Check DEF levels and SCR system functionality for Tier 4 compliance. In dusty environments, clean air filter outer elements frequently and monitor restriction indicators. Inspect radiator and oil cooler fins for debris buildup to maintain optimal engine temperatures. Adjust track tension based on ground conditions to prevent excessive wear on the 41-shoe undercarriage.
D53A-17(S/N 80001-UP) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 09019-08035 | Wrench,Filter (For Add. Fuel Filter) | Fuel system service | Check fitment → |
| 07281-00197 | Clamp,(With Pre-Fuel Filter) | Fuel system service | Check fitment → |
| 09637-90263 | Plate? Instruction,Air Cleaner Element Mainte | Air intake service | Check fitment → |
| 09637-30163 | Plate? Instruction,Air Cleaner (Single Element) | Air intake service | Check fitment → |
| 09637-30263 | Plate? Instruction,Air Cleaner Element Mainte | Air intake service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
D53A-17(S/N 80001-UP) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| CA115 | Engine crankshaft speed sensor failure | Broken sensor, wiring issue, or connector corrosion | Replace the speed sensor and verify voltage at the pin connector |
| CA441 | Battery voltage too low | Weak battery or charging system failure | Replace the battery or alternator and check the voltage regulator |
| CA442 | Battery voltage too high | Faulty voltage regulator or alternator | Replace the alternator or battery and check the voltage regulator |
| AA10NX | Air cleaner clogging | Dirty or blocked air filter element | Replace the air filter element |
| B@BCNS | Engine coolant overheating | Low coolant level, failed fan belt, or blocked radiator fins | Check radiator fins, fan belt, and coolant level |
| B@HANS | Hydraulic oil overheating | Contaminated hydraulic oil, clogged filter, or cooler fan failure | Change hydraulic filter and oil and check the cooler fan |
| CA122 | Intake air pressure sensor high voltage | Sensor malfunction or wiring issue | Verify the intake pressure sensor and wiring |
| CA123 | Intake air pressure sensor low voltage | Sensor short or airflow restriction | Check for a sensor short or an airflow restriction |
| CA234 | Engine overspeed | Throttle calibration error, engine load cycle issue, or operator misuse | Verify throttle calibration and engine load cycle |
| AB00KE | Charging voltage too low | Alternator failure or loose belt | Replace the alternator or tighten the belt |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
D53A-17(S/N 80001-UP) attachments & work tools
Blades
The standard blade width is 12.3 ft (3.75 m) with a height of 34.5 in (87.6 cm). VPAT blade availability is not documented for this exact serial range in the provided sources.
Rippers
Specific ripper configurations, shank counts, and weights are not documented for the D53A-17(S/N 80001-UP) in the provided sources.
Winches
Towing winch options and class specifications are not documented for the D53A-17(S/N 80001-UP) in the provided sources.
Drawbars/Counterweights
Drawbar and counterweight specifications are not documented for the D53A-17(S/N 80001-UP) in the provided sources.
Cab/ROPS Guarding
Forestry and waste configuration guarding options are not documented for the D53A-17(S/N 80001-UP) in the provided sources.
Hydraulic Arrangement
Front/rear tool hydraulic arrangement notes are not documented for the D53A-17(S/N 80001-UP) in the provided sources.
All D53A-17(S/N 80001-UP) assemblies by section
Every catalogued assembly group for the Komatsu D53A-17(S/N 80001-UP). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
6d125e-2d-5 S/N 60721-Up
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Air Cleaner (For Trimming Dozer)(#64065-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***40 | Bolt (Op) | 1 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 6 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Air Cleaner (High Altitude Spec.)(#64065-)
| 01***40 | Bolt,(Dust And Dirt Protection) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Air Cleaner Cap (With Extension Pipe)(#64065-80454)
| 07***69 | Clamp,(Long Type) | 2 |
| 60***50 | Hose,(Long Type) | 1 |
| 60***40 | Cap,(Long Type) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Air Cleaner Cap (With Extension Pipe)(#80455-)
| 07***69 | Clamp,(Long Type) | 2 |
| 60***50 | Hose,(Long Type) | 1 |
| 60***40 | Cap,(Long Type) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Air Cleaner Cap(#64065-80454)
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Air Cleaner Cap(#80455-)
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Air Cleaner(#64065-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***40 | Bolt (Op) | 1 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 6 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Air Intake Manifold(#64065-)
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Air Vent(#64065-75182)
| 07***12 | Gasket,(Without Air Compressor Type) (K2) | 12 |
| 07***10 | Screw, Banjo Connector (M10-1.25x20) | 6 |
| 61***60 | Tube,Air Vent | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Air Vent(#75183-)
| 07***12 | Gasket,(Without Air Compressor Type) (K2) | 12 |
| 07***10 | Screw, Banjo Connector (M10-1.25x20) | 6 |
| 61***60 | Tube,Air Vent | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Alternater (35a) (With Hardening Pulley) (Sandy And Dusty Spec.) (Inner Parts)(#64065-)
| 60***50 | Alternator A. (35a) | 1 |
| 60***51 | Alternator A. (35a) | 1 |
| KD***50 | Bracket,Rear | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Alternater (35a) (With Hardening Pulley) (With Safety Cover) (Sandy And Dusty Spec.) (Inner Parts)(#64065-)
| 60***50 | Alternator A. (35a) | 1 |
| 60***51 | Alternator A. (35a) | 1 |
| KD***50 | Bracket,Rear | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Alternater (35a) (With Non Hardening Pulley) (Cold Terrain (A) Spec.) (Inner Parts)(#64065-)
| 60***50 | Alternator A. (35a) | 1 |
| 60***51 | Alternator A. (35a) | 1 |
| KD***50 | Bracket,Rear | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Alternater (35a) (With Non Hardening Pulley) (With Safety Cover) (Inner Parts)(#64065-)
| 60***50 | Alternator A. (35a) | 1 |
| 60***51 | Alternator A. (35a) | 1 |
| KD***50 | Bracket,Rear | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Alternater Mounting (35a) (With Hardening Pulley) (Sandy And Dusty Spec.)(#64065-)
| 01***60 | Bolt,(F4320-52a0 -5- ) | 4 |
| 01***75 | Bolt - Tube Mounting | 1 |
| 01***55 | Screw | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Alternater Mounting (35a) (With Hardening Pulley) (With Safty Cover) (Sandy And Dusty Spec.)(#64065-)
| 01***60 | Bolt,(F4320-52a0 -5- ) | 4 |
| 01***75 | Bolt - Tube Mounting | 1 |
| 01***55 | Screw | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Alternater Mounting (35a) (With Non Hardening Pulley) (Cold Terrain (A) Spec.)(#64065-)
| 01***60 | Bolt,(F4320-52a0 -5- ) | 4 |
| 01***75 | Bolt - Tube Mounting | 1 |
| 01***55 | Screw | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Alternater Mounting (35a) (With Non Hardening Pulley) (With Safety Cover)(#64065-)
| 01***60 | Bolt,(F4320-52a0 -5- ) | 4 |
| 01***75 | Bolt - Tube Mounting | 1 |
| 01***55 | Screw | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Blind Plug (Without Water Temperature Sensor)(#64065-)
| 07***15 | Plug,(Used When Without Heater) | 1 |
| 07***15 | Plug,(For Without Air Compressor) | 1 |
| 28***70 | Plug,(For Shipping) | 2 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Camfollower Cover(#64065-)
| 07***20 | Clamp, Spring Hose | 1 |
| 07***63 | Hose | 1 |
| 61***90 | O-Ring,Breather | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Camshaft(#61582-75757)
| 01***22 | Capscrew | 2 |
| 04***25 | Key, Plain Woodruff | 1 |
| 04***12 | Ring,Snap (For Ripper) | 12 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Camshaft(#75758-)
| 01***22 | Capscrew | 2 |
| 04***25 | Key, Plain Woodruff | 1 |
| 04***12 | Ring,Snap (For Ripper) | 12 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Caution Plate (Chinese)(#81315-)
| 09***63 | Plate? Instruction,Air Cleaner Element Mainte | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Caution Plate (English)(#81315-)
| 09***63 | Plate? Instruction,Air Cleaner (Single Element) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Caution Plate (French)(#81315-)
| 09***63 | Plate? Instruction,Air Cleaner Element Mainte | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Caution Plate (German)(#81315-)
| 09***63 | Plate? Instruction,Air Cleaner Element Mainte | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Caution Plate (Indonesian)(#81315-)
| 09***63 | Plate? Instruction,(For Indonesia) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Caution Plate (Spanish)(#81315-)
| 09***63 | Plate? Instruction,(Spanish) (Not Shown) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Cooling Fan (Reversible Fan)(#64065-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***40 | Bolt (Op) | 6 |
| 60***40 | Fan,Reversible | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Cooling Fan(#64065-)
| 01***30 | Bolt,(With Body Positioner) | 6 |
| 01***40 | Bolt (Op) | 6 |
| 60***40 | Fan,Cooling | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Corrosion Resistor(#64065-)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 02***25 | Bolt,(Cold Weather Spec.) | 4 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Crank Pulley (Hardening Pulley)(#64065-)
| 01***15 | Bolt | 1 |
| 01***20 | Bolt | 5 |
| 04***28 | Pin, Dowel - Transmission Case, Pin-Dowel | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Crankshaft(#61779-67073)
| 61***10 | Bearing, Main (Standard) | 7 |
| 61***50 | Bearing, Thrust Assembly (Standard) | 1 |
| 61***10 | Bearing, Main (1.00mm Undersize) | 7 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Crankshaft(#67074-)
| 61***10 | Bearing, Main (Standard) | 7 |
| 61***50 | Bearing, Thrust Assembly (Standard) | 1 |
| 61***10 | Bearing, Main (1.00mm Undersize) | 7 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Cylinder Block (1/2)(#64065-76795)
| 01***12 | Bolt,(Without Air Compressor Type) | 2 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 14 |
| 04***14 | Pin, Dowel | 2 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Cylinder Block (2/2)(#64065-76795)
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 5 |
| 07***30 | Ring, Seal - Between Sections | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Cylinder Block Blind Cover And Plug(#76796-)
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 5 |
| 01***12 | Bolt,(Without Air Compressor Type) | 2 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Cylinder Block Gasket Kit(#64065-)
| 07***21 | O-Ring,Water Piping | 1 |
| 07***30 | Ring, Seal - Between Sections | 1 |
| 07***15 | O-Ring,Relief Valve | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Cylinder Block(#76796-)
| 01***12 | Bolt,(Without Air Compressor Type) | 2 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 14 |
| 04***14 | Pin, Dowel | 2 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Cylinder Head Gasket Kit(#64065-)
| 07***65 | O-Ring,Cylinder Block | 6 |
| 07***12 | Gasket,Mechanical Pump Piping | 12 |
| 07***12 | Gasket,(Without Air Compressor Type) (K2) | 12 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Cylinder Head(#61779-67991)
| 01***20 | Bolt (M10-1.75x120) | 6 |
| 04***20 | Pin,Dowel (Welded) | 2 |
| 07***08 | Plug,(Without Lock-Up), Plug | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Cylinder Head(#67992-)
| 01***20 | Bolt (M10-1.75x120) | 6 |
| 04***20 | Pin,Dowel (Welded) | 2 |
| 07***08 | Plug,(Without Lock-Up), Plug | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Damper(#64065-)
| 01***50 | Bolt,For Weight Adjusting Bolt | 6 |
| 61***20 | Plate | 1 |
| 61***00 | Damper Ass'Y | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Engine Mounting(#64065-)
| 01***40 | Bolt,R.H. Outside And L.H. Inside, Bolt | 4 |
| 01***50 | Bolt,(Shim Thickness?Less Than 8mm) | 4 |
| 01***55 | Bolt,(Tree Pusher Dozer) | 2 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Exhaust Manifold (With Safety Cover)(#64065-79012)
| 01***20 | Bolt | 4 |
| 01***25 | Bolt,Joint | 2 |
| 01***45 | Capscrew | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Exhaust Manifold (With Safety Cover)(#79013-)
| 01***20 | Bolt | 4 |
| 01***25 | Bolt,Joint | 2 |
| 01***45 | Capscrew | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Exhaust Manifold(#61779-)
| 01***80 | Screw | 18 |
| 07***08 | Plug,(Without Auto Priming System) | 1 |
| 61***20 | Spacer,(For Shipping) | 18 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Exhaust Pipe (502.9mm)(#81510-)
| 01***11 | Nut,(Spark Arrester Spec.) | 2 |
| 01***23 | Plain Washer | 2 |
| 66***70 | Pipe,Exhaust (For Trimming Dozer) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Exhaust Pipe (Silver Exhaust Pipe? 1013mm)(#81510-)
| 01***11 | Nut,(Spark Arrester Spec.) | 2 |
| 01***23 | Plain Washer | 2 |
| 66***31 | Pipe,Exhaust (With Glasswool) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Fan Drive(#64065-)
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***40 | Bolt (Op) | 2 |
| 01***95 | Capscrew | 4 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Fan Pulley (Hardening Pulley) (Sandy And Dusty Spec.) (For 35a Alternator)(#64065-)
| 04***67 | V-Belt Set,(Tropical Sandy? Dusty Spec.) | 1 |
| 61***61 | Pulley? Hardening | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Fan Pulley (Non Hardening Pulley) (For 35a Alternator)(#64065-)
| 04***67 | V-Belt Set,(Tropical Sandy? Dusty Spec.) | 1 |
| 61***21 | Pulley?Non Hardening,Non Hardening | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Fan Pulley (Non Hardening Pulley) (Noise Suppression Spec.) (For 13a Alternator)(#64065-)
| 04***69 | V-Belt Set,Fan | 1 |
| 61***40 | Pulley?Non Hardening | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Flywheel Housing(#64065-)
| 01***65 | Bolt - Battery Box | 2 |
| 01***50 | Capscrew | 6 |
| 01***65 | Capscrew | 2 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Flywheel(#64065-)
| 01***65 | Bolt | 6 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 6 |
| 61***41 | Gear, Ring | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Front Cover Mounting(#75758-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***65 | Bolt - Return Line And Suction Linehose Clamps | 8 |
| 01***75 | Bolt (M10-1.50x75) | 4 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Front Cover(#64065-75757)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***65 | Bolt - Return Line And Suction Linehose Clamps | 8 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Front Cover(#75758-)
| 09***50 | Liquid Gasket, Lg-7, 150g | 0 |
| 61***30 | Seal? Front (K2) | 1 |
| 61***80 | Cover,Front | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Fuel Filter(#64065-)
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 2 |
| 01***16 | Washer,Radio Controlled Slag Handling | 2 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Fuel Injection Pump (Coupling) (Inner Parts)(#64065-)
| ND***10 | Flange,Coupling | 1 |
| ND***50 | Bolt | 1 |
| ND***40 | Bolt | 2 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Fuel Injection Pump (Feed Pump) (Inner Parts)(#64065-)
| ND***40 | Washer? 1mm,Plate | 1 |
| ND***70 | Washer,Union | 4 |
| ND***10 | Spring, Check Valve | 2 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Fuel Injection Pump (Governor) (1/2) (Inner Parts)(#64065-)
| ND***40 | Plate,Thrust | 1 |
| ND***40 | Plug,Screw | 1 |
| ND***10 | Adapter | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Fuel Injection Pump (Governor) (2/2) (Inner Parts)(#64065-)
| ND***20 | Washer? 1.0mm,Cover Plate | 2 |
| ND***90 | Seal,Oil | 1 |
| ND***40 | O-Ring | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Fuel Injection Pump (Pump) (1/2) (Inner Parts)(#64065-)
| 61***20 | Injection Pump Ass'Y | 1 |
| 61***21 | Injection Pump Ass'Y | 1 |
| ND***20 | Body Ass'Y | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Fuel Injection Pump (Pump) (2/2) (Inner Parts)(#64065-)
| ND***81 | Cover | 1 |
| ND***60 | Element,Pump | 6 |
| ND***11 | Shim? 1.7mm | 0 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Fuel Injection Pump Drive(#61582-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***14 | Nut (Itl) | 1 |
| 01***60 | Washer,(Without Rops Guard? Canopy) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Fuel Injection Pump Mounting(#64065-)
| 01***75 | Capscrew | 4 |
| 61***10 | Washer,Spring | 4 |
| (6***0) | Injection Pump Ass'Y,(See Fig.A4010-B3l1) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Fuel Injection Pump Piping(#61779-)
| 01***30 | Screw | 4 |
| 01***55 | Bolt,(See Service News) | 4 |
| 01***70 | Bolt - Bracket And Oil Inlet Tubemounting | 2 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Fuel Return(#64065-)
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Head Cover Related Parts(#75758-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***00 | Bolt,(For Front Brake Release) | 2 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Head Cover(#64065-75757)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***00 | Bolt,(For Front Brake Release) | 2 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Head Cover(#75758-)
| 01***16 | Washer,Radio Controlled Slag Handling | 24 |
| 61***11 | Cover,Head? No.2?3?4?5?6 | 5 |
| 61***41 | Head Cover Ass'Y,Head? No.1 | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Heater Signal(#64065-81509)
| 60***30 | Signal,Engine Pre Heater | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Heater Signal(#81510-)
| 60***30 | Signal,Engine Pre Heater | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Heater Switch(#64065-)
| 01***16 | Bolt - Box Mounting | 2 |
| 01***55 | Bolt,(See Service News) | 1 |
| 01***10 | Washer,(For 35a Alternator) | 2 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Idler Gear(#60863-)
| 01***60 | Screw | 1 |
| 01***60 | Capscrew | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Injection Nozzle(#64065-81733)
| 01***45 | Bolt, Mount Divider Valve | 12 |
| 07***65 | O-Ring,Cylinder Block | 6 |
| 07***12 | Gasket,(Without Air Compressor Type) (K2) | 12 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Injection Nozzle(#81734-)
| 01***45 | Bolt, Mount Divider Valve | 12 |
| 07***65 | O-Ring,Cylinder Block | 6 |
| 07***12 | Gasket,(Without Air Compressor Type) (K2) | 12 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Muffler (Exhaust Pipe? 502.9mm) (With Safety Cover)(#64065-81509)
| 01***12 | Bolt - Front Cover Mounting | 15 |
| 01***40 | Bolt (Op) | 4 |
| 01***25 | Bolt,Joint | 4 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Muffler (Exhaust Pipe? 502.9mm)(#64065-81509)
| 01***40 | Bolt (Op) | 4 |
| 01***25 | Bolt,Joint | 4 |
| 01***30 | Bolt | 2 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Muffler (Silver Exhaust Pipe? 1013mm) (With Rain Cap)(#64065-81509)
| 01***40 | Bolt (Op) | 4 |
| 01***25 | Bolt,Joint | 4 |
| 01***30 | Bolt | 2 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Muffler (Silver Exhaust Pipe? 1013mm) (With Safety Cover) (With Rain Cap)(#64065-81509)
| 01***12 | Bolt - Front Cover Mounting | 15 |
| 01***40 | Bolt (Op) | 4 |
| 01***25 | Bolt,Joint | 4 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Muffler (Silver Exhaust Pipe? 1013mm) (With Safety Cover)(#64065-81509)
| 01***12 | Bolt - Front Cover Mounting | 15 |
| 01***40 | Bolt (Op) | 4 |
| 01***25 | Bolt,Joint | 4 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Muffler (Silver Exhaust Pipe? 1013mm)(#64065-81509)
| 01***40 | Bolt (Op) | 4 |
| 01***25 | Bolt,Joint | 4 |
| 01***30 | Bolt | 2 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Muffler(#81510-) : Unit_01_of_02
| 01***40 | Bolt (Op) | 4 |
| 01***25 | Bolt,Joint | 4 |
| 01***30 | Bolt | 2 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Muffler(#81510-) : Unit_02_of_02
| 01***12 | Bolt - Front Cover Mounting | 15 |
| 01***40 | Bolt (Op) | 4 |
| 01***25 | Bolt,Joint | 4 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Name Plate And Air Cleaner Caution (Chinese)(#62922-81314)
| 09***61 | Plate? Instruction,(Chinese) (Not Shown) | 1 |
| 09***63 | Plate? Instruction,Air Cleaner Element Mainte | 1 |
| 61***20 | Plate? Name,Engine (Limited Supply) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Name Plate And Air Cleaner Caution (English)(#62922-81314)
| 09***61 | Plate? Instruction,Air Cleaner (Single Element) | 1 |
| 09***63 | Plate? Instruction,Air Cleaner (Single Element) | 1 |
| 61***20 | Plate? Name,Engine (Limited Supply) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Name Plate And Air Cleaner Caution (French)(#62922-81314)
| 09***61 | Plate? Instruction,Air Cleaner (French) | 1 |
| 61***20 | Plate? Name,Engine (Limited Supply) | 1 |
| 61***20 | Plate? Name,(French) (Limited Supply) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Name Plate And Air Cleaner Caution (German)(#62922-81314)
| 09***61 | Plate? Instruction,(German-English) (Not Shown) | 1 |
| 09***63 | Plate? Instruction,Air Cleaner Element Mainte | 1 |
| 61***20 | Plate? Name,Engine (Limited Supply) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Name Plate And Air Cleaner Caution (Indonesian)(#62922-81314)
| 09***61 | Plate? Instruction,(Indonesian-English)(Not Shown | 1 |
| 09***63 | Plate? Instruction,(For Indonesia) | 1 |
| 61***20 | Plate? Name,Engine (Limited Supply) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Name Plate And Air Cleaner Caution (Japanese-English)(#60863-81314)
| 09***61 | Plate? Instruction,(Japanese-English) (Not Shown) | 1 |
| 09***63 | Plate? Instruction,Air Cleaner (Double Element) | 1 |
| 61***20 | Plate? Name,Engine (Limited Supply) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Name Plate And Air Cleaner Caution (Spanish)(#62922-81314)
| 09***61 | Plate? Instruction,(Spanish-English) (Not Shown) | 1 |
| 09***63 | Plate? Instruction,(Spanish) (Not Shown) | 1 |
| 61***20 | Plate? Name,(Limited Supply) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Name Plate And Caution(#81315-)
| 60***40 | Plate? Name,Engine (Limited Supply) | 1 |
| 61***20 | Plate? Name,Engine (Limited Supply) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Nozzle Holder (Inner Parts)(#64065-81733)
| 07***12 | Gasket,Mechanical Pump Piping | 2 |
| 61***10 | Holder Ass'Y | 1 |
| ND***90 | Connector,Inlet | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Nozzle Holder (Inner Parts)(#81734-)
| 07***12 | Gasket,Mechanical Pump Piping | 2 |
| 61***10 | Holder Ass'Y | 1 |
| ND***90 | Connector,Inlet | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Oil Adapter(#64065-)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 2 |
| 01***50 | Bolt,(Spark Arrester Spec.) | 2 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Oil Cooler Mounting Parts(#76796-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 13 |
| 01***65 | Bolt - Return Line And Suction Linehose Clamps | 2 |
| 01***80 | Bolt,(With Corrosion Resistor) | 2 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Oil Cooler(#61779-76795)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 13 |
| 01***65 | Bolt - Return Line And Suction Linehose Clamps | 2 |
| 01***80 | Bolt,(With Corrosion Resistor) | 2 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Oil Cooler(#76796-)
| 01***25 | Bolt - Relay Mounting | 2 |
| 07***42 | O-Ring,(See Fig.A3310) | 1 |
| 61***11 | Element | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Oil Filter(#64065-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 2 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Oil Level Gauge(#64065-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 1 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Oil Pan And Suction Tube(#64065-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 29 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 7 |
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Oil Pump(#61779-)
| 01***25 | Bolt,(Rear Attachment Less) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Piston(#61779-)
| 02***13 | Pin, Dowel | 2 |
| 04***18 | Ring, Snap | 12 |
| 61***10 | Pin,Piston | 6 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Rocker Arm(#61582-75757)
| 01***75 | Screw | 40 |
| 01***08 | Nut,R.H. Thread | 12 |
| 01***32 | Washer,(With Auto Emergency Steering) | 40 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Rocker Arm(#75758-)
| 01***75 | Screw | 40 |
| 01***08 | Nut,R.H. Thread | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 40 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Safety Guard (For Fuel Injection Pump Drive)(#61589-)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 61***50 | Cover, Safety | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Spare Parts (For 35a Alternetor)(#64065-80914)
| 04***67 | V-Belt Set,(Tropical Sandy? Dusty Spec.) | 1 |
| 07***34 | O-Ring,Transmission And Steering Case | 1 |
| 07***12 | Gasket,Mechanical Pump Piping | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Spare Parts (Noise Suppression Spec.)(#64065-80914)
| 04***69 | V-Belt Set,Fan | 1 |
| 07***34 | O-Ring,Transmission And Steering Case | 1 |
| 07***12 | Gasket,Mechanical Pump Piping | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Spare Parts (Noise Suppression Spec.)(#80915-)
| 04***69 | V-Belt Set,Fan | 1 |
| 07***34 | O-Ring,Transmission And Steering Case | 1 |
| 07***12 | Gasket,Mechanical Pump Piping | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Starting Motor (11kw) (Inner Parts)(#61582-85685)
| 60***10 | Starting Motor Ass'Y,(11kw) | 1 |
| SD***X0 | Bearing,Ball | 1 |
| SD***X0 | Brush Holder Ass'Y | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Starting Motor (11kw) (Inner Parts)(#85686-)
| 60***11 | Starting Motor Ass'Y,(11kw) | 1 |
| KD***40 | Spring,Spring | 4 |
| KD***57 | Bearing, Ball, Front | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Starting Motor (7.5kw) (Inner Parts)(#61659-)
| 60***11 | Starting Motor Ass'Y,(7.5kw) | 1 |
| KD***60 | Shift Lever Assembly | 1 |
| KD***40 | Spring,Spring | 4 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Starting Motor Mounting (11kw)(#61582-85685)
| 01***40 | Bolt (Kit) | 3 |
| 08***19 | Band,(Without Air Conditioner) | 1 |
| 08***10 | Connector, Clip | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Starting Motor Mounting (11kw)(#85686-)
| 01***40 | Bolt (Kit) | 3 |
| 08***19 | Band,(Without Air Conditioner) | 1 |
| 08***10 | Connector, Clip | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Starting Motor Mounting (7.5kw) (Anti-Corrosive Type) (Trimming Spec.)(#64065-)
| 01***40 | Bolt,(With Center Guard) | 3 |
| 01***40 | Bolt (Kit) | 3 |
| 08***19 | Band,(Without Air Conditioner) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Starting Motor Mounting (7.5kw)(#61659-)
| 01***40 | Bolt (Kit) | 3 |
| 08***19 | Band,(Without Air Conditioner) | 1 |
| 08***10 | Connector, Clip | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Thermostat Housing(#61582-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***65 | Screw | 4 |
| 02***04 | Plug,(For Shipping) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Turbocharger (High Altitude Spec.) (Inner Parts)(#64065-)
| 61***00 | Turbocharger Ass'Y,(Tv7705) | 1 |
| GA***85 | V-Band Ass'Y | 1 |
| GA***07 | Rotor Ass'Y | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Turbocharger Oil Piping (High Altitude Spec.)(#64065-)
| 01***20 | Bolt,(For Mono Lever Steering) | 5 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***40 | Bolt (Op) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Water Drain Valve(#60863-)
| 61***12 | Valve,Water Drain | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Water Pump Gasket Kit(#64065-)
| 02***37 | O-Ring,(For Pc750?1800) (A5010) | 1 |
| 07***15 | O-Ring,Scavenge Pump | 1 |
| 07***15 | O-Ring,(F4320-57a0 -11 ) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Water Pump(#64065-75182)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 6 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Water Pump(#75183-)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 6 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
Komatsu : D53a-17(S/N 80001-Up) : 6d125e-2d-5 S/N 60721-Up : Water Separator(#64065-)
| 01***25 | Bolt,(Rear Attachment Less) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***16 | Washer,(For 35a Alternator) | 2 |
Accessory
Komatsu : D53a-17(S/N 80001-Up) : Accessory : Body Sheet
| 13***70 | Awning,(Not Shown) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : Accessory : Cap And Overall
| 09***50 | Overall,(Special Order) | 1 |
| 09***50 | Cap And Overall Kit,(Except Japan) | 1 |
| 09***50 | Cap And Overall Kit | 1 |
Komatsu : D53a-17(S/N 80001-Up) : Accessory : Spare Parts (Except Japan)
| 07***75 | O-Ring,Steering Oil Filter | 1 |
| 07***80 | O-Ring,Hydraulic Oil Filter | 1 |
| 07***32 | O-Ring,Drain Plug? Main Clutch | 1 |
Komatsu : D53a-17(S/N 80001-Up) : Accessory : Tool (Except Japan)
| 07***50 | Pump, (Bellows Type) | 1 |
| 07***03 | Cartridge - Grease | 1 |
| 07***45 | Nozzle, Grease Pump (Non-Flexible Type) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : Accessory : Tool (For Reversible Fan)
| 14***10 | Handle | 1 |
| 14***20 | Plate | 1 |
Cooling System
Komatsu : D53a-17(S/N 80001-Up) : Cooling System : Core Grid(For Sandy Dusty Terrain Spec.)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 6 |
| 01***32 | Washer,(With Auto Emergency Steering) | 6 |
Komatsu : D53a-17(S/N 80001-Up) : Cooling System : Radiator And Piping
| 01***20 | Bolt,(For Mono Lever Steering) | 60 |
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Cooling System : Radiator And Piping (For Trimming Dozer) (For Cuba)(#81349-)
| 01***20 | Bolt,(For Mono Lever Steering) | 60 |
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Cooling System : Radiator And Piping (Noise Suppression For Ec)
| 01***20 | Bolt,(For Mono Lever Steering) | 60 |
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Cooling System : Radiator Cover (For Timming Dozer) (For Cuba)(#81349-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 23 |
| 01***05 | Capscrew | 5 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 28 |
Komatsu : D53a-17(S/N 80001-Up) : Cooling System : Radiator Cover (Noise Supprission For Ec)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
| 01***30 | Bolt,(With Body Positioner) | 8 |
| 01***05 | Capscrew | 5 |
Komatsu : D53a-17(S/N 80001-Up) : Cooling System : Radiator Cover (Tbg Spec.)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 15 |
| 01***30 | Bolt,(With Body Positioner) | 8 |
| 01***05 | Capscrew | 5 |
Komatsu : D53a-17(S/N 80001-Up) : Cooling System : Radiator Cover(#80001-80183)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 23 |
| 01***30 | Bolt,(With Body Positioner) | 6 |
| 01***05 | Capscrew | 5 |
Komatsu : D53a-17(S/N 80001-Up) : Cooling System : Radiator Cover(#80184-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 23 |
| 01***05 | Capscrew | 6 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 6 |
Electrical System
Komatsu : D53a-17(S/N 80001-Up) : Electrical System : Back-Up Alarm(#80001-82113)
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 2 |
| 01***20 | Screw | 4 |
Komatsu : D53a-17(S/N 80001-Up) : Electrical System : Back-Up Alarm(#82114-)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***65 | Capscrew - M16 X 2.00 X 90 | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Electrical System : Battery
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 4 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 8 |
Komatsu : D53a-17(S/N 80001-Up) : Electrical System : Battery (Large Capacity)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 4 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 8 |
Komatsu : D53a-17(S/N 80001-Up) : Electrical System : Battery (Tbg Spec.)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***30 | Bolt - M8 X 30lg | 1 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 4 |
Komatsu : D53a-17(S/N 80001-Up) : Electrical System : Electrical System
| 01***16 | Bolt - Seat And Tether Belt Mounting | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 8 |
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
Engine Related Parts
Komatsu : D53a-17(S/N 80001-Up) : Engine Related Parts : Damper
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 18 |
| 01***40 | Bolt (Op) | 12 |
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 12 |
Komatsu : D53a-17(S/N 80001-Up) : Engine Related Parts : Damper (Noise Suppression For Ec)
| 01***12 | Bolt - M8 - 1.25 X 12 | 8 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 18 |
| 01***40 | Bolt (Op) | 12 |
Komatsu : D53a-17(S/N 80001-Up) : Engine Related Parts : Damper (Tbg Spec.)
| 01***12 | Bolt - M8 - 1.25 X 12 | 8 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 18 |
| 01***40 | Bolt (Op) | 12 |
Komatsu : D53a-17(S/N 80001-Up) : Engine Related Parts : Engine Mounting Parts
| 01***20 | Bolt | 1 |
| 01***50 | Bolt | 3 |
| 01***05 | Bolt | 2 |
Fuel Tank And Related Parts
Komatsu : D53a-17(S/N 80001-Up) : Fuel Tank And Related Parts : Fuel Tank And Piping (Noise Suppression For Ec)
| 01***12 | Bolt - M8 - 1.25 X 12 | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 3 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 10 |
Komatsu : D53a-17(S/N 80001-Up) : Fuel Tank And Related Parts : Fuel Tank And Piping (Tbg Spec.)
| 01***12 | Bolt - M8 - 1.25 X 12 | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 3 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 10 |
Komatsu : D53a-17(S/N 80001-Up) : Fuel Tank And Related Parts : Fuel Tank And Piping(#80001-82457)
| 01***12 | Bolt - M8 - 1.25 X 12 | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 3 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 10 |
Komatsu : D53a-17(S/N 80001-Up) : Fuel Tank And Related Parts : Fuel Tank And Piping(#82458-)
| 01***12 | Bolt - M8 - 1.25 X 12 | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 3 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 10 |
Guard
Komatsu : D53a-17(S/N 80001-Up) : Guard : Engine Hood (Noise Suppression For Ec)
| 01***20 | Bolt,(With Auto Emergency Steering) | 12 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 3 |
Komatsu : D53a-17(S/N 80001-Up) : Guard : Engine Hood And Side Cover
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 14 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 3 |
Komatsu : D53a-17(S/N 80001-Up) : Guard : Engine Hood And Side Cover (For Water Separator Mounting)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 14 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 3 |
Komatsu : D53a-17(S/N 80001-Up) : Guard : Engine Hood And Side Cover (Tbg Spec.)
| 01***20 | Bolt,(With Auto Emergency Steering) | 24 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 14 |
Komatsu : D53a-17(S/N 80001-Up) : Guard : Engine Hood And Side Cover (With Turbocharger And Water Separator) (For Pakistan)(#81801-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 14 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 3 |
Komatsu : D53a-17(S/N 80001-Up) : Guard : Engine Side Cover (Noise Suppression For Ec)
| 01***20 | Bolt,(With Auto Emergency Steering) | 12 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 14 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 12 |
Komatsu : D53a-17(S/N 80001-Up) : Guard : Fender (Tbg Spec.)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 12 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 8 |
| 01***40 | Bolt,R.H. Outside And L.H. Inside, Bolt | 20 |
Komatsu : D53a-17(S/N 80001-Up) : Guard : Fender And Rear Cover
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 27 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 8 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Guard : Fender And Rear Cover (Noise Suppression For Ec)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 12 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 8 |
| 01***40 | Bolt,R.H. Outside And L.H. Inside, Bolt | 24 |
Komatsu : D53a-17(S/N 80001-Up) : Guard : Radiator Guard And Cylinde Support (For Trimming)(#81349-)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 1 |
| 01***45 | Bolt,(For 60ton Dump Body) | 6 |
Komatsu : D53a-17(S/N 80001-Up) : Guard : Radiator Guard And Cylinde Support (Tbg Spec.)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 1 |
| 01***60 | Capscrew | 16 |
Komatsu : D53a-17(S/N 80001-Up) : Guard : Radiator Guard And Cylinder Support
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 6 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 1 |
| 01***60 | Capscrew | 8 |
Komatsu : D53a-17(S/N 80001-Up) : Guard : Radiator Guard And Cylinder Support (Dor Mechanical Angle Power Tilt Dozer)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 1 |
| 01***60 | Bolt,(Shim Thickness?More Than 8mm) | 8 |
Komatsu : D53a-17(S/N 80001-Up) : Guard : Radiator Shutter
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Guard : Rear Cover (Tbg Spec.)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 13 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Guard : Reinforced Under Guard
| 01***30 | Bolt,(Not Used With Emergency Str.) | 6 |
| 01***50 | Bolt,(For Tbg/Abe Spec.) | 14 |
| 01***55 | Bolt,(With Hook) | 4 |
Komatsu : D53a-17(S/N 80001-Up) : Guard : Rops Mount
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***40 | Bolt,(With Center Guard) | 12 |
| 01***60 | Bolt, Mount Pole | 12 |
Komatsu : D53a-17(S/N 80001-Up) : Guard : Under Guard
| 01***30 | Bolt,(Not Used With Emergency Str.) | 6 |
| 01***40 | Bolt,(With Center Guard) | 8 |
| 01***45 | Bolt,(For Travel Motor) (Not Show) | 6 |
Komatsu : D53a-17(S/N 80001-Up) : Guard : Under Guard (Noise Suppression For Ec)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 6 |
| 01***50 | Bolt,(For Tbg/Abe Spec.) | 14 |
| 01***40 | Bolt | 4 |
Komatsu : D53a-17(S/N 80001-Up) : Guard : Under Guard (Tbg Spec.)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 6 |
| 01***40 | Bolt,(With Center Guard) | 8 |
| 01***45 | Bolt,(For Travel Motor) (Not Show) | 6 |
Komatsu : D53a-17(S/N 80001-Up) : Guard : Under Guard (With Hook)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 6 |
| 01***40 | Bolt,(With Center Guard) | 8 |
| 01***45 | Bolt,(For Travel Motor) (Not Show) | 6 |
Komatsu : D53a-17(S/N 80001-Up) : Guard : Work Eouipment Hose Guard
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 18 |
| 01***36 | Wahser-Spring, Washer,Spring (Without Towing Winch) | 20 |
Hydraulic System
Komatsu : D53a-17(S/N 80001-Up) : Hydraulic System : Hydraulic Piping (Pump To Tank)
| 01***20 | Bolt,(Large Capacity Type) (Std) | 2 |
| 01***80 | Bolt, Mount Strainer Flange | 4 |
| 01***45 | Bolt,(Cold Terrain Spec.) | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Hydraulic System : Hydraulic Piping (Tank To Lift Cylinder)(#80001-81974)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***45 | Bolt,(For Power Tilt Mech Angle) | 8 |
Komatsu : D53a-17(S/N 80001-Up) : Hydraulic System : Hydraulic Piping (Tank To Lift Cylinder)(#81975-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***45 | Bolt,(For Power Tilt Mech Angle) | 4 |
Komatsu : D53a-17(S/N 80001-Up) : Hydraulic System : Hydraulic Piping? Tank To Lift Cylinder (Noise Suppression For Ec)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***45 | Bolt,(For Power Tilt Mech Angle) | 8 |
Komatsu : D53a-17(S/N 80001-Up) : Hydraulic System : Hydraulic Piping? Tank To Lift Cylinder (Tbg Spec.)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***45 | Bolt,(For Power Tilt Mech Angle) | 8 |
Main Frame And Related Parts
Komatsu : D53a-17(S/N 80001-Up) : Main Frame And Related Parts : Equalizer Bar
| 01***16 | Bolt,(Sandy And Dusty Spec.) | 1 |
| 01***35 | Bolt | 2 |
| 01***55 | Bolt, Fuel Tank Mounting | 4 |
Komatsu : D53a-17(S/N 80001-Up) : Main Frame And Related Parts : Steering Case And Main Frame
| 01***16 | Bolt,(For Slag Handling) | 2 |
| 01***25 | Bolt,(For Slag Handling) | 4 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
Marks And Plates
Komatsu : D53a-17(S/N 80001-Up) : Marks And Plates : Marks And Plates (Japanese And English)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 08***01 | Indicator,Dust Indicator | 1 |
| 09***00 | Plate? Safety,Inspection And Maintenance | 1 |
Komatsu : D53a-17(S/N 80001-Up) : Marks And Plates : Marks And Plates (Spanish) (For Trimming Dozer) (For Cuba)(#81349-)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 09***00 | Plate? Safety,Inspection And Maintenance | 1 |
| 09***35 | Plate? Name,Machine (Limited Supply) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : Marks And Plates : Marks And Plates (Tbg Spec.)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 08***01 | Indicator,Dust Indicator | 1 |
| 09***00 | Plate? Safety,Inspection And Maintenance | 1 |
Miscellaneous
Komatsu : D53a-17(S/N 80001-Up) : Miscellaneous : Vandalism Protection
| 07***00 | Cap,(For Vandalism Protection) | 1 |
| 07***00 | Cap, Locking - Hydraulic Tank Oil Filler Cap | 1 |
| 07***00 | Cap,(For Vandalism Protection) | 1 |
Operator'S Compartment And Control System
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Air Compressor And Related Parts (For Air Conditioner)
| 01***30 | Bolt,(For Mechanical Governor) | 4 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***25 | Bolt, Mount Filter To Bracket | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Air Conditioner (For Rops Cab) (1/2)
| 01***10 | Bolt,(With Auto Emergency Steering) | 4 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 8 |
| 01***30 | Bolt,(For Mechanical Governor) | 8 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Air Conditioner (For Rops Cab) (2/2)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***60 | Bolt, Mount Tube To Switch Pump | 18 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Air Conditioner Compressor
| 04***20 | Ring, Snap | 1 |
| 14***00 | Compressor Ass'Y | 1 |
| 14***10 | Compressor Ass'Y | 1 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Air Conditioner Condenser
| 01***65 | Bolt,R.H | 4 |
| 01***04 | Nut,(For Air Conditioner Less) | 3 |
| 01***05 | Nut,(For Air Conditioner Less), Nut | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Air Conditioner Grille
| 14***60 | Bushing | 3 |
| 14***60 | Wire | 1 |
| 14***50 | Cable | 1 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Air Conditioner Piping (1/2)
| 01***25 | Bolt,Without Revolution Sensor | 4 |
| 01***40 | Bolt,(With Air Conditioner) | 3 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Air Conditioner Piping (2/2)
| 01***25 | Bolt,Without Revolution Sensor | 6 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 6 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Air Conditioner Unit
| 14***40 | Grommet | 2 |
| 14***01 | Unit Ass'Y | 1 |
| 14***02 | Unit Ass'Y | 1 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Air Duct (For Rops Cab)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 11 |
| 01***12 | Screw,R.H | 4 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Blade Control Lever
| 01***55 | Bolt | 1 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 4 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Blade Control Lever (Tbg Spec.)
| 01***55 | Bolt | 1 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 4 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Box (Noise Suppression For Ec)
| 01***16 | Bolt,(For Slag Handling) | 2 |
| 01***25 | Bolt - Rear Guard Mounting | 12 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 3 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Box And Floor
| 01***16 | Bolt,(For Slag Handling) | 2 |
| 01***25 | Bolt - Rear Guard Mounting | 12 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 3 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Box And Floor (Tbg Spec.)
| 01***25 | Bolt - Rear Guard Mounting | 10 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 3 |
| 01***70 | Bolt, Heater Hose Clip | 4 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Brake Lock Lever
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 9 |
| 01***45 | Bolt, Mounting Bracket To Radiator (Top) | 2 |
| 01***16 | Screw | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Brake Lock Lever (Tbg Spec.)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 9 |
| 01***45 | Bolt, Mounting Bracket To Radiator (Top) | 2 |
| 01***16 | Screw | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Brake Pedal And Linkage
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***50 | Bolt,(For Strengthened Cover) | 4 |
| 01***08 | Nut,L.H. Thread | 3 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Brake Pedal And Linkage (Noise Suppression For Ec)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***50 | Bolt,(For Strengthened Cover) | 4 |
| 01***08 | Nut,L.H. Thread | 3 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Canopy
| 01***35 | Bolt,(For Pedal Steering) | 8 |
| 01***50 | Screw | 4 |
| 01***40 | Bolt,R.H. Outside And L.H. Inside, Bolt | 8 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Control Box (For Rops Cab)
| 01***10 | Screw,(For Lighter) | 4 |
| 01***12 | Screw,(For Side Lamp) (Not Shown) | 2 |
| 01***20 | Screw - Turn Signal And Parkinglight Mounting | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Decelerator Pedal
| 01***30 | Bolt,(For Mechanical Governor) | 1 |
| 01***35 | Bolt,(For Position Fixing) | 1 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Electrical System (For Rops Cab)
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 9 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 12 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Floor (Noise Suppression For Ec)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 11 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 11 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Fuel Control Lever
| 01***30 | Bolt,(For Mechanical Governor) | 1 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Head Guard
| 01***35 | Bolt, Hydraulic Tank Mounting | 24 |
| 01***45 | Bolt,(For Travel Motor) (Not Show) | 8 |
| 01***50 | Bolt,(For Tbg/Abe Spec.) | 8 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Hot Water Car Heater (Electrical)(#82269-)
| 01***16 | Screw,(P.O.C. Model) (Except Japan) | 2 |
| 01***05 | Nut,(For Air Conditioner Less), Nut | 2 |
| 01***19 | Washer,Spring (With Extinguisher) (D31p) | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Hot Water Car Heater (Heater And Air Duct)(#82269-)
| 01***25 | Bolt,Without Revolution Sensor | 1 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Hot Water Car Heater (Inner Parts)(#82269-)
| 20***30 | Heater Ass'Y,(See Fig.Y1977-01a1) | 1 |
| ND***40 | Motor Ass'Y | 1 |
| ND***70 | Case,Upper | 1 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Hot Water Car Heater (Piping)(#82269-)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***40 | Bolt,(With Service Valve R.H.) | 2 |
| 01***25 | Screw | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Hot Water Car Heater(#80001-82268)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 6 |
| 01***40 | Bolt,(With Service Valve R.H.) | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Instrument Panel
| 01***10 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***16 | Screw, Mount Parking Lights | 2 |
| 01***20 | Screw - Turn Signal And Parkinglight Mounting | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Instrument Panel (Tbg Spec.)
| 01***10 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***16 | Screw, Mount Parking Lights | 2 |
| 01***20 | Screw - Turn Signal And Parkinglight Mounting | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Instrument Panel (With Turbocharger And Water Separator) (For Pakistan)(#80801-)
| 01***10 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***16 | Screw, Mount Parking Lights | 2 |
| 01***20 | Screw - Turn Signal And Parkinglight Mounting | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Operator'S Seat (Noise Suppression For Ec)(#80001-82372)
| 01***16 | Bolt,(For Slag Handling) | 4 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 9 |
| 01***25 | Bolt - Rear Guard Mounting | 4 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Operator'S Seat (Noise Suppression For Ec)(#82373-)
| 01***16 | Bolt (With Air Heater & Conditioner) | 4 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 9 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 6 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Operator'S Seat (Tbg Spec.)
| 01***16 | Bolt,(For Slag Handling) | 4 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 9 |
| 01***25 | Bolt - Rear Guard Mounting | 4 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Operator'S Seat(#80001-82152)
| 01***16 | Bolt,(For Slag Handling) | 4 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 9 |
| 01***20 | Bolt,(Used When Towing Winch) | 4 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Operator'S Seat(#82153-)
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Operator'S Sheat (Fixed Type)
| 01***16 | Bolt,(For Slag Handling) | 4 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 8 |
| 01***20 | Bolt,(Used When Towing Winch) | 4 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Roof Lining (For Rops Cab)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 14 |
| 01***10 | Screw,(With Air Conditioner) | 4 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Rops Cab (1/3)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 4 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 22 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Rops Cab (2/3)
| 01***20 | Bolt,(Without Maintenance Monitor) | 4 |
| 01***40 | Bolt | 4 |
| 01***16 | Bolt (With Air Heater & Conditioner) | 8 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Rops Cab (3/3)
| 01***12 | Screw,(With Articulate Indicator) | 4 |
| 01***16 | Screw,(P.O.C. Model) (Except Japan) | 23 |
| 01***16 | Screw,(With Ashtray) | 28 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Rops Canopy
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 14 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 14 |
| 01***36 | Wahser-Spring, Washer,Spring (Without Towing Winch) | 14 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Safety Lock Lever And Cover
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 3 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 3 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Safety Lock Lever And Cover (Tbg Spec.)
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 3 |
| 01***36 | Wahser-Spring, Washer,Spring (Without Towing Winch) | 4 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Seat Suspension (With Oil Damper)(#82153-)
| 01***10 | Nut,(Without Air Conditioner) | 4 |
| 01***16 | Washer,(With Water Separator) | 2 |
| 01***26 | Washer,Plain | 4 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Steering Lever
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 13 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 10 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Steering Lever (Noise Suppression For Ec)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 13 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 10 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Steering Lever (Tbg Spec.)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 13 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 10 |
| 01***11 | Nut - Mounting | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Steering Lever Linkage
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 2 |
| 01***45 | Bolt, Mounting Bracket To Radiator (Top) | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Steering Lever Linkage (Noise Suppression For Ec)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 2 |
| 01***45 | Bolt, Mounting Bracket To Radiator (Top) | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Steering Oil Pump
| 04***18 | Ring, Snap | 1 |
| 07***60 | Seal,Oil | 1 |
| 07***03 | Pump Ass'Y,(Fal 028-203) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Tank Cover (Noise Suppression For Ec)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 13 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 2 |
| 01***30 | Bolt-Hex, Bolt,(With Center Guard) | 4 |
Komatsu : D53a-17(S/N 80001-Up) : Operator'S Compartment And Control System : Torqflow Transmission Change Lever
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***06 | Nut,L.H. Thread (For Russian) | 2 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 3 |
Power Train And Final Drive
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : 1st Clutch And Out-Put Shaft
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 8 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 8 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 10 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Bevel Gear Shaft
| 01***10 | Bolt, Mount Flasher | 4 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 6 |
| 01***20 | Bolt | 4 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Control And Relief Valve Piping
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 2 |
| 01***60 | Bolt, Mount Tube To Switch Pump | 3 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Final Drive Gear
| 01***30 | Bolt,(Not Used With Emergency Str.) | 12 |
| 01***30 | Bolt-Hex, Bolt,(With Center Guard) | 16 |
| 01***13 | Nut | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Final Drive Gear (For Trimming)
| 01***30 | Bolt,(Not Used When Towing Winch) | 12 |
| 01***30 | Bolt - M14 X 30lg | 16 |
| 01***13 | Nut | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Final Drive Housing And Sprocket
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 16 |
| 01***75 | Bolt,(For D65e) | 8 |
| 01***40 | Capscrew | 50 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Final Drive Housing And Sprocket (For Trimming)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 16 |
| 01***40 | Capscrew | 18 |
| 01***45 | Bolt, M14x2.0x45 | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Final Drive Shaft
| 01***40 | Bolt,R.H. Outside And L.H. Inside, Bolt | 12 |
| 01***70 | Bolt,Rear Carrier (With Gumpad) | 24 |
| 01***55 | Bolt,(With Hook) | 8 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Final Drive Shaft (For Trimming)
| 01***40 | Capscrew | 12 |
| 01***70 | Bolt,(With Wear Guard) | 24 |
| 01***55 | Bolt,(Without Rops) | 8 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Forward Clutch And Shaft
| 01***20 | Bolt,(Large Capacity Type) (Std) | 3 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 3 |
| 04***14 | Pin, Dowel | 1 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Relief Valve
| 01***16 | Bolt (With Air Heater & Conditioner) | 6 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 6 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Reverse? 2nd And 3rd Clutch
| 04***28 | Pin, Dowel - Transmission Case, Pin-Dowel | 4 |
| 04***10 | Ring, Snap | 1 |
| 04***70 | Ring, Snap | 1 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Steering Brake (1/2)
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 10 |
| 01***25 | Bolt - Rear Guard Mounting | 4 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 12 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Steering Brake (2/2)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Bolt | 2 |
| 01***08 | Nut, Regular Hexagon (M10-1.50) | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Steering Clutch
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Steering Control Booster
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***60 | Bolt, Tube To Oil Cooler | 4 |
| 01***65 | Bolt, Mount Radiator To Frame (Bottom) | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Steering Control Valve
| 01***16 | Bolt,(For Slag Handling) | 1 |
| 01***60 | Bolt,(Without Alternator Bracket) | 2 |
| 01***50 | Bolt | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Steering Oil Filter
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 4 |
| 07***10 | O-Ring,(F4350-62a0 -5 ), O-Ring; Komatsu S/N 22***01 & Abv - Was 07000-02010, O-Ring; Was 07000-02010 | 1 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Steering Oil Filter (Noise Suppression For Ec)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 4 |
| 07***10 | O-Ring,(F4350-62a0 -5 ), O-Ring; Komatsu S/N 22***01 & Abv - Was 07000-02010, O-Ring; Was 07000-02010 | 1 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Steering Oil Piping
| 01***20 | Bolt,(Large Capacity Type) (Std) | 2 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***30 | Bolt,(For France Noise Suppression) | 8 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Steering Oil Piping (Noise Suppression For Ec)
| 01***20 | Bolt,(Large Capacity Type) (Std) | 2 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***30 | Bolt,(For France Noise Suppression) | 8 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Torqflow Transmission Case
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 11 |
| 01***36 | Washer,Radio Controlled Slag Handling | 11 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Torqflow Transmission Case Cover And Lever
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 10 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 4 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Torqflow Transmission Control Valve (1/2)
| 01***20 | Bolt,(With Auto Emergency Steering) | 4 |
| 01***30 | Bolt,(For Mechanical Governor) | 2 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Torqflow Transmission Control Valve (2/2)(#80001-81637)
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 4 |
| 01***10 | Bolt,(With Joy Stick Steering) | 4 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Torqflow Transmission Control Valve (2/2)(#81638-)
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 4 |
| 01***10 | Bolt,(With Joy Stick Steering) | 4 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Torqflow Transmission Lubrication Valve
| 01***20 | Bolt,(With Auto Emergency Steering) | 2 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 4 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Torqflow Transmission Mounting And Filler
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***40 | Bolt,R.H. Outside And L.H. Inside, Bolt | 4 |
| 01***45 | Bolt,(For Travel Motor) (Not Show) | 8 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Torqflow Transmission Oil Filter
| 01***30 | Bolt,Radio Controlled Slag Handling | 4 |
| 01***36 | Washer,Radio Controlled Slag Handling | 4 |
| 04***12 | Ring, Snap | 1 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Torqflow Transmission Oil Piping (1/2) (Noise Suppression For Ec)(#80001-82280)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 10 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 4 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Torqflow Transmission Oil Piping (1/2)(#80001-82280)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 10 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 4 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Torqflow Transmission Oil Piping (1/2)(#82281-)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 10 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 7 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Torqflow Transmission Oil Piping (2/2)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 5 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 6 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Torqflow Transmission Oil Piping (2/2) (Noise Suppression For Ec)(#80001-82280)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 5 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***55 | Bolt, Mount Tube To Switch Pump | 6 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Torqflow Transmission Pump
| 04***18 | Ring,Snap (Itl) | 1 |
| 07***60 | Seal (Kit) | 1 |
| 07***03 | Pump Ass'Y,(Far040) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Torqflow Transmission Rear Cover
| 01***45 | Bolt,(For Suction? Reversible Fan) | 6 |
| 01***65 | Capscrew | 9 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 6 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Torque Converter Housing
| 01***20 | Bolt,(Large Capacity Type) (Std) | 6 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 14 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 14 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Turbine Stator And Torque Converter Valve(#80001-81637)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 32 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 6 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Turbine Stator And Torque Converter Valve(#81638-)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 32 |
| 01***35 | Bolt, Bolt, Mount Tubes To Switch And Work Pumps | 6 |
Komatsu : D53a-17(S/N 80001-Up) : Power Train And Final Drive : Universal Joint
| 01***29 | Washer,Spring (Cold Weather Spec.) | 4 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 8 |
| 02***95 | Bolt | 4 |
Service Kit And Component Parts
Komatsu : D53a-17(S/N 80001-Up) : Service Kit And Component Parts : Blade Lift Cylinder
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***35 | Bolt,(Without Auto Priming System) | 4 |
| 01***50 | Bolt,(For Trimming Dozer) | 4 |
Komatsu : D53a-17(S/N 80001-Up) : Service Kit And Component Parts : Hydraulic Pump
| 04***18 | Ring,Snap (Itl) | 1 |
| 07***62 | Seal,Oil (Itl) | 1 |
| 70***00 | Pump Ass'Y,(Kal080) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : Service Kit And Component Parts : Hydraulic Tank And Control Valve (1/4)
| 01***20 | Bolt,(Large Capacity Type) (Std) | 2 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 53 |
| 01***40 | Bolt,(Not Used With Cab) | 5 |
Komatsu : D53a-17(S/N 80001-Up) : Service Kit And Component Parts : Hydraulic Tank And Control Valve (2/4)
| 01***30 | Bolt,(Cold Terrain Spec.) | 1 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 16 |
| 01***30 | Bolt,(For France Noise Suppression) | 5 |
Komatsu : D53a-17(S/N 80001-Up) : Service Kit And Component Parts : Hydraulic Tank And Control Valve (3/4)
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 2 |
| 01***40 | Bolt,(Dust And Dirt Protection) | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Service Kit And Component Parts : Hydraulic Tank And Control Valve (4/4)
| 01***35 | Bolt, Mounting - Flywheel Housing End | 3 |
| 01***70 | Bolt, Spacer | 2 |
| 01***75 | Bolt,(For D57sr) | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Service Kit And Component Parts : Service Kit
| 01***30 | Bolt | 1 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 1 |
| 01***16 | Washer,(With Water Separator) | 1 |
Under Carriage
Komatsu : D53a-17(S/N 80001-Up) : Under Carriage : Carrier Roller
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***45 | Bolt,(For 60ton Dump Body) | 16 |
Komatsu : D53a-17(S/N 80001-Up) : Under Carriage : Front Idler
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 12 |
| 01***40 | Bolt,(For Slag Handling) (For Usa) | 4 |
| 01***60 | Capscrew | 4 |
Komatsu : D53a-17(S/N 80001-Up) : Under Carriage : Recoil Spring
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 8 |
Komatsu : D53a-17(S/N 80001-Up) : Under Carriage : Recoil Spring (For Reinforcer)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 8 |
Komatsu : D53a-17(S/N 80001-Up) : Under Carriage : Recoil Spring (For Timming Dozer) (For Cuba)(#81349-)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 8 |
Komatsu : D53a-17(S/N 80001-Up) : Under Carriage : Track Frame
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 8 |
| 01***30 | Bolt-Hex, Bolt,(With Center Guard) | 36 |
| 01***50 | Bolt,(Shim Thickness?Less Than 8mm) | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Under Carriage : Track Roller(#80001-82480)
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 12 |
| 01***65 | Bolt - Battery Box | 64 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 12 |
Komatsu : D53a-17(S/N 80001-Up) : Under Carriage : Track Roller(#82481-)
| 01***65 | Capscrew - M16 X 2.00 X 90 | 48 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 48 |
| 07***55 | O-Ring,Front Accessory Drive | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Under Carriage : Track Shoe (Lubricate Type)
| 01***22 | Nut? Shoe (Kit) | 312 |
| 07***30 | Plug,(Large) | 82 |
| 07***21 | Plug,(Small) | 82 |
Komatsu : D53a-17(S/N 80001-Up) : Under Carriage : Track Shoe (Master Pin Type)(#80001-82224)
| 01***22 | Nut? Shoe (Kit) | 328 |
| 13***10 | Track Shoe Ass'Y | 1 |
| 13***11 | Track Shoe Ass'Y | 1 |
Komatsu : D53a-17(S/N 80001-Up) : Under Carriage : Track Shoe (Master Pin Type)(#82225-)
| 13***13 | Track Shoe Ass'Y | 1 |
| 13***26 | Link,Track? L.H | 82 |
| 13***36 | Link,Track? R.H | 82 |
Work Equipment
Komatsu : D53a-17(S/N 80001-Up) : Work Equipment : Angle Blade
| 01***55 | Bolt - Mount Cage To Transmission Case | 4 |
| 01***14 | Nut | 4 |
| 02***70 | Bolt, Plow | 26 |
Komatsu : D53a-17(S/N 80001-Up) : Work Equipment : Angle Rake Blade
| 01***55 | Bolt - Mount Cage To Transmission Case | 4 |
| 01***14 | Nut | 4 |
| 01***42 | Washer,Spring (For Pedal Steering) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : Work Equipment : C-Frame
| 01***80 | Bolt, Mount Strainer Flange | 2 |
| 01***45 | Bolt | 16 |
| 01***45 | Screw | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Work Equipment : C-Frame (Tbg Psec.)
| 01***80 | Bolt, Mount Strainer Flange | 2 |
| 01***45 | Bolt | 16 |
| 01***40 | Screw | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Work Equipment : Drawbar (Lock Type)
| 01***80 | Bolt | 6 |
| 01***60 | Bolt (Itl) | 1 |
| 01***19 | Nut - M24 | 4 |
Komatsu : D53a-17(S/N 80001-Up) : Work Equipment : Drawbar (Lock Type) (Tbg Spec.)
| 01***80 | Bolt | 6 |
| 01***60 | Bolt (Itl) | 1 |
| 01***19 | Nut - M24 | 4 |
Komatsu : D53a-17(S/N 80001-Up) : Work Equipment : Drawbar (With Angle Lake)
| 01***90 | Bolt (Kit) | 6 |
| 01***19 | Nut - M24 | 2 |
| 01***60 | Washer,(Without Rops Guard? Canopy) | 8 |
Komatsu : D53a-17(S/N 80001-Up) : Work Equipment : Hitch
| 01***90 | Bolt (Kit) | 4 |
| 01***60 | Bolt (Itl) | 1 |
| 01***15 | Nut,(For Quick Shift) (Mitsubishi) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : Work Equipment : Hitch (Tbg Spec.)
| 01***90 | Bolt (Kit) | 4 |
| 01***60 | Bolt (Itl) | 1 |
| 01***15 | Nut,(For Quick Shift) (Mitsubishi) | 1 |
Komatsu : D53a-17(S/N 80001-Up) : Work Equipment : Reinforced Angle Blade
| 01***55 | Bolt - Mount Cage To Transmission Case | 4 |
| 01***14 | Nut | 4 |
| 01***42 | Washer,Spring (For Pedal Steering), Washer-Spring | 1 |
Komatsu : D53a-17(S/N 80001-Up) : Work Equipment : Snow Plow
| 01***60 | Bolt,(Except Pll) | 2 |
| 01***50 | Bolt,(For Tree Pusher) | 8 |
| 01***15 | Nut (Op) | 2 |
Komatsu : D53a-17(S/N 80001-Up) : Work Equipment : Straight Blade
| 01***80 | Bolt,(With Corrosion Resistor) | 2 |
| 01***65 | Bolt,(Used With Pin Puller) | 4 |
| 01***35 | Capscrew - M14 (1)/(2) | 4 |
Komatsu : D53a-17(S/N 80001-Up) : Work Equipment : Straight Frame
| 01***45 | Bolt | 16 |
| 01***40 | Screw | 2 |
| 01***60 | Flat Washer - M20 (Hardened) | 16 |
Komatsu : D53a-17(S/N 80001-Up) : Work Equipment : Swing Drawber
| 01***50 | Bolt,(For Large Size Tire) | 4 |
| 01***65 | Bolt,(Without Rops Guard? Canopy) | 6 |
| 01***30 | Capscrew | 4 |
D53A-17(S/N 80001-UP) serial number reference
The PIN plate is located on the front frame casting, typically on the operator's left side near the radiator support. Read the prefix as the model code (D53A-17) followed by the serial number starting at 80001.
| Prefix | Identifies | Notes |
|---|---|---|
| D53A-17 | Standard | Serial range 80001-UP. Factory shop manual SEBM01301707 covers this model. Engine: 6D125-1C (from 10001-Up) or 6D125E-2D (from 61779-Up). Steering system: Hydrostatic. Region: Domestic-Japan-market and export builds. Rough years: 1995-1997 (per shop manual SEBM01301707 issued 10-1995). |
Frequently asked questions
What engine does the Komatsu D53A-17 (S/N 80001-UP) use?
The Komatsu D53A-17 (S/N 80001-UP) uses the Komatsu 6D125-1 engine, a 6-cylinder diesel with 128 hp (95.4 kW) gross power at 1900 rpm.
What is the operating weight of the Komatsu D53A-17?
The operating weight of the Komatsu D53A-17 is 28,219.2 lb (12,800 kg).
What model replaced the Komatsu D53A-17?
The Komatsu D53A-17 was succeeded by the D53A-18 series, which features updated engine configurations and emissions compliance.
What D53A-17(S/N 80001-UP) owners discuss
What engine powers the D53A-17(S/N 80001-UP) and what are its key specifications?
The machine uses a Komatsu 6D125-1 engine. It has a displacement of 674 cu in (11,042 cu cm) and produces 128 hp (95 kw) gross power at 1900 rpm. It is a 6-cylinder unit. Note: The D53A-17(S/N 80001-UP) is distinct from the D53P-17(S/N 80001-UP) and D53S-17(S/N 80001-UP) which may use different engines or configurations. The D53A-17 is part of the 17-series generation starting at serial 80001.
What are the typical undercarriage wear patterns and specifications for this dozer?
The standard undercarriage features 41 shoes per side with a 18 in (46 cm) shoe size. There are 5 track rollers and 2 carrier rollers per side. The track gauge is 6.6 ft (2 m) with a 7 in (18 cm) pitch. Operators should monitor track tension and roller condition closely, as worn bushings and bearings can lead to premature track failure and noise. The length of track on ground is approximately 6.6 ft (2 m).
What are the common hydraulic behaviors and issues reported for this series?
Hydraulic weakness when hot is a common diagnostic pattern, often indicating internal leakage in pumps, control valves, or cylinders as viscosity decreases. Shared hydraulic supply issues can cause all functions to slow simultaneously. Komatsu hydraulic systems are generally smooth and fuel-efficient, but contamination and extended service intervals can accelerate wear. Leaks in hydraulic lines or cylinders are often caused by worn seals or over-pressurization. Always check oil level and filter condition before assuming pump failure.
What electrical or sensor issues are typical for this machine?
Komatsu machines rely heavily on electronic control systems. A single faulty sensor or unstable power supply can trigger multiple warning signals. Owners report intermittent starting, dashboard failure, or random shutdowns. Check battery state of charge, terminals, and chassis grounds first. If the machine stops starting after filter replacement, check recent work before assuming component failure. Verify sensor functionality and control panel operation to resolve electromechanical issues.
What are the known powertrain or transmission behaviors for the D53A-17?
The D53A-17 uses a TF transmission with 3 forward and 3 reverse gears. The drivetrain includes a planetary gear system. Operators should be aware that steering clutch issues can cause pulling or hard turning. If one side pulls or drags, check track tension, debris packing, and steering clutch pressure. The forward planetary carrier is a critical component; failure can result in sheared gears and ring gear damage. Ensure proper lubrication and monitor for unusual noises from final drives or travel motors.
What are the engine quirks or maintenance considerations for the 6D125-1 series?
Engine performance issues often dominate serious problems, including power loss, increased fuel usage, or overheating. Check air and fuel filters, fuel tank venting, and intake hoses for restrictions. Contamination, extended service intervals, and low-quality fuel accelerate wear. If the engine loses power under load, check for hydraulic system drag versus engine capability. Cooling system blockages in the radiator, hydraulic oil cooler, and charge-air cooler can cause overheating. Ensure coolant level is correct when cold.
What should be checked when buying a used D53A-17(S/N 80001-UP)?
Verify the serial number starts with 80001 to confirm it is the 17-series A-model. Check the engine model is 6D125-1. Inspect the undercarriage for wear on the 41 shoes per side and 5 track rollers per side. Test hydraulic functions cold and hot to identify internal leakage. Check for intermittent electrical faults, dashboard warnings, and starting issues. Verify steering clutch pressure on both sides. Ensure the transmission shifts smoothly through all 3 forward and 3 reverse gears. Have your dealer verify the exact serial range specifications and installed attachment package before purchase.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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