Komatsubulldozermedium (d40 - d75)
Komatsu D45A-1(S/N 1501-UP)
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu D45A-1 (S/N 1501-UP) is a mid-size crawler dozer built around Komatsu's naturally aspirated S4D105-1 four-cylinder diesel, rated at roughly 67 kW (90 hp) at 2400 rpm from a 3.98-liter displacement, driving a torque-converter powershift transmission. Operating weight for the standard-gauge A configuration runs about 9.55 t (21,050 lb); Komatsu also offered this chassis as the wide-gauge, lower-ground-pressure P version and the extra-wide swamp-spec S version, both of which carry more weight and different track widths than the A. Production dates to the late 1970s into the mid-1980s, part of Komatsu's D40/D45/D50 mid-size dozer lineup of that era. The D45A-1 shipped as a straight-blade dozer with a dry-type air cleaner, sealed-and-lubricated track, and mechanical fuel injection with no electronic engine controls.
Within the -1 generation, the A, P and S suffixes are gauge and undercarriage variants sharing the same engine and drivetrain architecture rather than separate model families, and Komatsu documented all three (plus the smaller D40A-1/D40P-1) in one shared operation and maintenance manual. Komatsu did not carry the D45 model number forward past this generation; its mid-size dozer numbering moved on to other designations in later decades, so parts seekers should treat the D45A-1 as a closed, non-continuing line rather than expect a same-name successor. That closed-line status is exactly why it still matters in the parts market today: surviving units are older, running gear and hydraulic components wear out faster than clean replacement parts appear, and buyers rely on aftermarket, rebuilt, and cross-reference parts sourced through the shared D40/D45 parts catalog rather than dealer new-stock.
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 D45A-1(S/N 1501-UP) specifications
Identification
| Model | Komatsu D45A-1, S/N 1501-UP |
| Configuration | Standard track-gauge crawler dozer, straight dozer blade. Built alongside D45P-1 (wide-track/LGP) and D45S-1 (swamp) siblings on a shared chassis family; specs below are for the A (standard) configuration only. |
| Production era | Late 1970s to mid-1980s series |
Engine
| Engine model | Komatsu S4D105-1 |
| Cylinders | 4, in-line, water-cooled diesel |
| Displacement | 3.98 L (242.9 cu in) |
| Gross power | 67.1 kW (90 hp) at 2,400 rpm |
| Emissions tier | Pre-emissions mechanical diesel, no aftertreatment or electronic engine controls |
Weights
| Operating weight, standard blade | 9,550 kg (21,054 lb) |
| Note | Weight is for the standard-track A configuration with dozer blade fitted. Wide-track P and S configurations run heavier and are not covered here to avoid mixing variants. |
Dimensions
| Overall length with blade | 4.27 m (14.0 ft) |
| Overall length without blade | 3.29 m (10.8 ft) |
| Width over tracks | 1.95 m (6.4 ft) |
| Height to top of cab/canopy | 2.62 m (8.6 ft) |
| Ground clearance | 0.37 m (1.2 ft) |
| Length of track on ground | 2.07 m (6.8 ft) |
| Track gauge | 1.55 m (5.1 ft) |
| Standard shoe width | 400 mm (15.8 in) |
| Track pitch | 175 mm (6.9 in) |
| Track rollers per side | 5 |
| Carrier rollers per side | 1 |
| Track shoes per side | 37 |
Performance
| Travel speed, forward (top gear) | 9.0 km/h (5.6 mph) |
| Travel speed, reverse (top gear) | 10.9 km/h (6.8 mph) |
| Gears | 3 forward, 3 reverse, torque-flow (TF) power-shift transmission |
| Ground pressure, standard shoe | Approx. 0.05 MPa / 0.51 kg/cm2 (7.2 psi) |
| Drawbar pull | Not documented in available factory spec sheets for this exact serial range. Verify with your dealer or the shop manual for this range if needed. |
| Gradeability | Not documented in available factory spec sheets for this exact serial range. |
Blade
| Blade type | Straight dozer blade (single standard blade offering; no S/SU/A/VPAT option lineup on this vintage series) |
| Blade width | 3.17 m (10.4 ft) |
| Blade height | 751 mm (29.6 in) |
| Cutting depth | Approx. 381 mm (15 in), single-source figure, treat as approximate |
| Blade capacity | Not documented in available factory spec sheets for this exact serial range. |
Service capacities
| Fuel tank | 210 L (55.5 gal) |
| Cooling system | 43.2 L (11.4 gal) |
| Engine oil | Not documented in available factory spec sheets for this exact serial range. |
| Hydraulic/work equipment tank | Not documented in available factory spec sheets for this exact serial range. |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
D45A-1(S/N 1501-UP) fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (w/ filter) | Not documented in available sources for this exact serial range — verify with your dealer or the shop manual refill table | Komatsu genuine diesel engine oil (EO series) at the SAE grade matched to ambient temperature per the OMM's engine oil viscosity chart; a naturally aspirated 105-series 4-cylinder diesel of this era typically specs SAE 10W, 30, or 10W-30/15W-40 across the seasonal range, but the exact grade breakpoints for this OMM are not confirmed |
| Cooling system | approx. 43 L (11.4 US gal) | Komatsu supercoolant / permanent-type antifreeze (ethylene-glycol base) mixed to the OMM's freeze-protection ratio for the operating climate |
| Fuel tank | approx. 210 L (55.5 US gal) | Diesel fuel, ASTM No. 2-D (or No. 1-D in cold climates) per the OMM's fuel spec |
| Transmission / powershift (powertrain) compartment | Not documented in available sources — the shared D40A-1/D40P-1/D45A-1/D45P-1/D45S-1 OMM is known to split powershift transmission and bevel gear/steering-clutch compartments into separate refill entries, but figures for each were not found | Komatsu genuine transmission/powertrain oil (TO series), grade per the OMM's ambient-temperature chart — not confirmed for this model |
| Bevel gear case / steering clutch compartment | Not documented in available sources for this exact serial range | Komatsu genuine transmission/powertrain oil (TO series) — same family as the powershift transmission fill per typical Komatsu practice of this era, not independently confirmed |
| Final drive (each side) | Not documented in available sources for this exact serial range | Komatsu genuine final-drive/axle oil (AXO series) — grade not confirmed for this model |
| Hydraulic system / tank | Not clearly separated from other capacities in available aggregator data — some published spec sheets list an approx. 43 L (11.4 US gal) fluid figure but attribute it inconsistently to either the cooling system or the hydraulic reservoir, so this number should be treated as unconfirmed for the hydraulic tank specifically | Komatsu genuine hydraulic oil (HO series), grade per ambient temperature — not confirmed for this model |
| Pivot shaft | Not listed as a separate fluid-fill point in available sources | If equipped, grease per the OMM's periodic lubrication (grease-fitting) schedule rather than an oil refill |
| Grease points (general) | Not quantified in available sources (grease fittings serviced by pump strokes, not volume, per typical Komatsu OMM practice) | Komatsu genuine multipurpose grease, NLGI 2 lithium-soap base, for standard temperatures; a lower-consistency (NLGI 1 or 0) grease for cold climates per the OMM's grease chart — exact Komatsu grade code not confirmed for this model |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Komatsu D45A-1(S/N 1501-UP) 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 D45A-1(S/N 1501-UP) beyond the schedule
Predictive Maintenance & Fluid Analysis
The D45A-1 has no ECM or fault-code readout, so condition monitoring depends on sampling, not telemetry. Pull regular oil samples from the S4D105-1 engine, torque converter/transmission case and final drives to trend wear metals before a powershift clutch or final drive gear set fails outright. Test coolant condition each service interval given the all-mechanical cooling system, and log track sag and roller/idler wear measurements over time to plan undercarriage replacement before it forces a shutdown.
Corrective & Common Repairs
Expect wear in the steering clutch and brake bands and in torque converter seals as running hours accumulate on this powershift drivetrain. Mechanical fuel injection pumps and injectors on the S4D105-1 drift out of calibration with age and need periodic bench testing. Hydraulic cylinder rod seals on the blade lift and tilt circuit are a common leak point, and radiator cores and hoses on a machine this old are frequent failure items worth proactive replacement rather than run-to-failure.
Overhaul & Rebuild Points
Final drives and the torque converter/transmission assembly are the major rebuild targets once oil sampling or clutch slippage flags internal wear. Track chain, bushings, rollers and idlers wear as a set on the sealed-and-lubricated undercarriage and are typically planned together rather than piecemeal. The naturally aspirated engine's mechanical simplicity makes a top-end rebuild (liner, piston, rings) straightforward, and the injection pump should be recalibrated or exchanged as part of any major engine overhaul.
Seasonal & Environment Servicing
Cold starts on the naturally aspirated S4D105-1 benefit from intake air preheating and a full-strength coolant/antifreeze check before winter; verify battery condition since there's no auxiliary electric start aid beyond the factory system. In wet or swampy ground, drain the fuel/water separator more often and clean packed mud from the track frame, sprockets and final drive seals to prevent premature undercarriage wear. In dusty conditions, service the dry-type air cleaner element more frequently than the standard interval and keep the radiator screen clear.
D45A-1(S/N 1501-UP) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 07281-00197 | Clamp,(With Pre-Fuel Filter) | Fuel system service | Check fitment → |
| 07000-02135 | O-Ring,Hydraulic Oil Filter | Hydraulic service | Check fitment → |
| 07000-02075 | O-Ring,Steering Oil Filter | Lubrication service | Check fitment → |
| 08036-01414 | Clip,(For Add.Filter)(Except Japan) | Scheduled service item | Check fitment → |
| 07002-03334 | O-Ring, At Transmission Filter | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
D45A-1(S/N 1501-UP) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| Charge lamp (red) | Charging circuit warning lamp lit with engine running | Alternator/generator not charging, drive belt slipping or broken, or wiring fault in charge circuit | Check belt tension and condition, check charge circuit wiring and connections, test alternator output |
| Engine oil pressure lamp (red) | Engine lubrication oil pressure warning lamp lit | Low engine oil level, clogged oil filter, worn oil pump, or failed oil pressure switch | Stop engine immediately, check oil level and top up, inspect filter, verify pressure switch before restarting |
| Coolant temperature gauge in red zone | Engine coolant temperature above normal operating range | Low coolant level, clogged radiator core, slipping or broken fan belt, or thermostat stuck closed | Idle engine to cool, check coolant level and radiator for debris, inspect fan belt and thermostat |
| Torque converter oil temperature gauge in red zone | Torque converter/transmission oil overheating | Low transmission oil level, overloaded operation (excessive stall), or clogged oil cooler | Reduce load and let oil cool, check transmission oil level, inspect oil cooler for blockage |
| Air cleaner restriction indicator | Air intake filter restriction beyond allowable limit | Clogged or dirty air filter element | Service or replace air filter element, reset restriction indicator |
| Fuel level low / no fuel warning | Fuel tank level at or near empty | Normal fuel consumption without refueling, or fuel leak | Refuel and check for leaks if consumption seems abnormal |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
D45A-1(S/N 1501-UP) attachments & work tools
Blades
Standard equipment is a straight dozer blade around 3.17 m (10 ft 5 in) wide by roughly 0.75 m (29.6 in) tall, giving a cutting depth near 380 mm (15 in) - consistent with Komatsu's S-type straight blade used across this size class. Sources for this vintage small-class machine do not spell out factory SU (semi-U) or A (angling) blade codes tied specifically to this serial range, so treat wider or angling blade options as unconfirmed for this exact configuration - verify against the dealer spec sheet or shop manual before ordering. VPAT (variable-angle/tilt) blades are a later-generation Komatsu feature and are not documented on this era of dozer; do not assume VPAT availability here.
Rippers
No ripper model, shank count, or weight is documented for this exact serial range in available sources. For dozers in this roughly 9.5-9.6 t operating-weight class, a single-shank parallelogram-type ripper is the typical rear attachment (multi-shank/multi-tooth rippers are more common on Komatsu's larger D65 and up dozers), but this is a class-level generalization, not a confirmed factory option for the D45A-1 - confirm ripper compatibility and shank count with a Komatsu dealer or the shop manual.
Winches
No factory winch class, drum capacity, or cable-pull rating is documented for this exact serial range in available sources. Dozers of this size and era commonly offered a PTO-driven towing/logging winch as a rear-mount option in place of the ripper, but no model-specific figures could be confirmed - verify winch fitment and capacity with the dealer or parts manual.
Drawbars/Counterweights
A rear drawbar (used when the ripper or winch is not fitted) is standard practice for this class of dozer, but no specific drawbar rating or counterweight option is documented for this exact serial range in available sources. Any counterweight fitted would typically pair with a rear-mounted attachment (ripper or winch) to balance the machine; exact weights are not confirmed - verify with dealer documentation.
Cab/ROPS guarding (forestry/waste)
No forestry-guard, brush-guard, or waste-handling cab/ROPS package is documented for this exact serial range in available sources. This is a 1970s/80s-era small-class dozer and heavy forestry guarding packages of the type seen on modern Komatsu dozers are not confirmed to have been offered on this model - verify with the dealer before assuming any such package exists.
Hydraulic arrangement (front/rear tools)
The machine uses an engine-driven hydraulic pump feeding the work-equipment control system for blade lift and (where fitted) blade angle/tilt functions; a separate or shared circuit would serve a rear ripper cylinder where one is fitted. Exact pump flow, cylinder bore, or dual-pump-vs-single-pump arrangement for this specific serial range is not confirmed in available sources - consult the shop manual's work-equipment hydraulic circuit section for exact routing.
All D45A-1(S/N 1501-UP) assemblies by section
Every catalogued assembly group for the Komatsu D45A-1(S/N 1501-UP). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Engine Related Parts And Electrical System
Komatsu : D45a-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Battery
| 01***16 | Bolt,(For Slag Handling) | 2 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 1 |
| 01***18 | Bolt | 1 |
Komatsu : D45a-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Compression Release Lever(#1501-1800)
Komatsu : D45a-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Decelerater Pedal(#1501-1800)
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 2 |
| 01***50 | Bolt - Torque Converter Totransmission Mounting | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Decelerater Pedal(#1801-)
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 2 |
| 01***12 | Screw | 1 |
| 01***10 | Nut,(Dust?Drip Proof? Trimming S.) | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Electrical System (For 800w Alternator)(#1801-)
| 08***14 | Clip,(Not Shown) | 2 |
| 12***40 | Wire | 1 |
| 12***10 | Wire Ass'Y | 1 |
Komatsu : D45a-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Electrical System(#1501-1800)
| 01***16 | Bolt,(For Slag Handling) | 2 |
| 01***16 | Bolt,(Sandy And Dusty Spec.) | 2 |
| 01***20 | Bolt,(Used When Towing Winch) | 10 |
Komatsu : D45a-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Electrical System(#1800-)
| 01***16 | Bolt (Welded) | 2 |
| 01***16 | Bolt,(For Slag Handling) | 4 |
| 01***16 | Bolt,(Sandy And Dusty Spec.) | 4 |
Komatsu : D45a-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Engine Mounting Parts(#1501-1800)
| 01***40 | Bolt,(Not Used With Cab) | 4 |
| 01***05 | Bolt | 4 |
| 01***42 | Washer,Spring (For Pedal Steering) | 8 |
Komatsu : D45a-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Engine Mounting Parts(#1801-)
| 01***50 | Bolt | 2 |
| 01***20 | Bolt,Front (Except Japan) | 2 |
| 01***50 | Bolt | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Fuel Control Lever(#1501-1800)
| 01***12 | Bolt,(Without R.P.C.U.) | 3 |
| 01***16 | Bolt (Welded) | 3 |
| 01***20 | Bolt | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Fuel Control Lever(#1801-)
Komatsu : D45a-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Fuel Control Linkage(#1501-1800)
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***25 | Bolt,(Without Auto Priming System) | 1 |
| 01***40 | Bolt | 1 |
Komatsu : D45a-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Fuel Tank (With Fuel Strainer) (Except Japan)(#1801-)
| 01***16 | Bolt,(Sandy And Dusty Spec.) | 2 |
| 01***25 | Bolt,(For Slag Handling) | 6 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Fuel Tank(#1501-1800)
| 01***16 | Bolt,(Sandy And Dusty Spec.) | 4 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 6 |
| 01***25 | Bolt,(For Slag Handling) | 6 |
Komatsu : D45a-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Fuel Tank(#1801-)
| 01***16 | Bolt,(Sandy And Dusty Spec.) | 2 |
| 01***25 | Bolt,(For Slag Handling) | 6 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Instrument Panel(#1501-1800)
| 01***10 | Bolt,(With Auto Emergency Steering) | 4 |
| 01***20 | Bolt,(Without Maintenance Monitor) | 2 |
| 01***20 | Screw | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Instrument Panel(#1801-)
| 01***20 | Bolt | 2 |
| 01***20 | Screw | 2 |
| 01***12 | Screw | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Radiator Cover And Piping(#1501-1800)
| 01***20 | Bolt,(Large Capacity Type) (Std) | 10 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***25 | Bolt - Rear Guard Mounting | 12 |
Komatsu : D45a-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Radiator Cover And Piping(#1801-)
| 01***20 | Bolt,(Large Capacity Type) (Std) | 10 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 1 |
| 01***25 | Bolt - Rear Guard Mounting | 12 |
Komatsu : D45a-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Radiator(#1501-1800)
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 44 |
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
| 01***40 | Bolt,(Dust And Dirt Protection) | 4 |
Komatsu : D45a-1(S/N 1501-Up) : Engine Related Parts And Electrical System : Radiator(#1801-)
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 44 |
| 01***40 | Bolt,(Dust And Dirt Protection) | 8 |
| 01***50 | Bolt - Torque Converter Totransmission Mounting | 12 |
Guard
Komatsu : D45a-1(S/N 1501-Up) : Guard : Bottom Guard
| 01***25 | Bolt - Rear Guard Mounting | 6 |
| 01***35 | Bolt,(For Pedal Steering) | 14 |
| 01***36 | Washer,Radio Controlled Slag Handling | 6 |
Komatsu : D45a-1(S/N 1501-Up) : Guard : Dashboard And Floor Plate(#1501-1800)
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 6 |
| 01***25 | Bolt - Rear Guard Mounting | 8 |
Komatsu : D45a-1(S/N 1501-Up) : Guard : Dashboard And Floor Plate(#1801-)
| 01***10 | Bolt, Mount Flasher | 2 |
| 01***30 | Bolt,(For France Noise Suppression) | 6 |
| 01***20 | Bolt,(Used When Towing Winch) | 6 |
Komatsu : D45a-1(S/N 1501-Up) : Guard : Engine Hood And Guard(#1501-1800)
| 01***20 | Bolt,(Large Capacity Type) (Std) | 2 |
| 01***25 | Bolt - Rear Guard Mounting | 17 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 4 |
Komatsu : D45a-1(S/N 1501-Up) : Guard : Engine Hood And Guard(#1801-)
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 3 |
| 01***25 | Bolt,(Without Auto Priming System) | 2 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Guard : Equalizer Bar(#1501-1800)
| 01***35 | Bolt | 2 |
| 01***42 | Washer,Spring (For Pedal Steering) | 2 |
| 04***50 | Pin,Cotter (Except D40pll) | 4 |
Komatsu : D45a-1(S/N 1501-Up) : Guard : Equalizer Bar(#1801-)
| 01***35 | Bolt,(For Pedal Steering) | 2 |
| 01***35 | Bolt | 2 |
| 01***42 | Washer,Spring (For Pedal Steering) | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Guard : Fender And Rear Cover(#1501-1800)
| 01***25 | Bolt - Rear Guard Mounting | 2 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 21 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 20 |
Komatsu : D45a-1(S/N 1501-Up) : Guard : Fender And Rear Cover(#1801-)
| 01***25 | Bolt - Rear Guard Mounting | 2 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 26 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 6 |
Komatsu : D45a-1(S/N 1501-Up) : Guard : Frame And Cover(#1501-1800)
| 01***16 | Bolt,(For Slag Handling) | 2 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 4 |
| 01***22 | Bolt | 4 |
Komatsu : D45a-1(S/N 1501-Up) : Guard : Frame And Cover(#1801-)
| 01***12 | Bolt (M8-1.25x12) | 2 |
| 01***16 | Bolt,(For Slag Handling) | 4 |
| 01***18 | Bolt | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Guard : Hitch
| 01***90 | Bolt (Kit) | 4 |
| 01***60 | Bolt (Ger) | 1 |
| 01***15 | Nut (Ger) | 1 |
Komatsu : D45a-1(S/N 1501-Up) : Guard : Mark And Plate(#1501-1800)
Komatsu : D45a-1(S/N 1501-Up) : Guard : Mark And Plate(#1801-)
| 04***60 | Screw, Serial Number Plate | 4 |
| 09***35 | Plate? Name,Machine (Limited Supply) | 1 |
| 09***01 | Plate? Instruction,Radiator Level | 1 |
Komatsu : D45a-1(S/N 1501-Up) : Guard : Operator'S Seat(#1501-1800)
| 01***30 | Bolt,(Cold Terrain Spec.) | 4 |
| 01***75 | Bolt,(See Fig.0142) | 1 |
| 01***16 | Bolt,(Sandy And Dusty Spec.) | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Guard : Operator'S Seat(#1801-)
| 01***30 | Bolt,(Cold Terrain Spec.) | 4 |
| 01***16 | Bolt,(Sandy And Dusty Spec.) | 2 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 8 |
Optional Parts
Komatsu : D45a-1(S/N 1501-Up) : Optional Parts : Back-Up Alarm And Wiring
| 01***12 | Bolt, Bolt,(No Need To Quick Shift) | 3 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 3 |
Komatsu : D45a-1(S/N 1501-Up) : Optional Parts : Canopy
| 01***35 | Bolt,(For Pedal Steering) | 8 |
| 01***42 | Washer,Spring (For Pedal Steering) | 8 |
| 12***10 | Canopy Ass'Y | 1 |
Komatsu : D45a-1(S/N 1501-Up) : Optional Parts : Electrical System (For Rops Cab)
| 01***16 | Bolt (Welded) | 12 |
| 01***16 | Bolt,(Sandy And Dusty Spec.) | 6 |
| 01***08 | Screw, Terminal | 1 |
Komatsu : D45a-1(S/N 1501-Up) : Optional Parts : Exhaust Pipe And Precleaner Extension Mounting(#1501-1800)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***40 | Bolt, Mount Master Brake Cylinder | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
Komatsu : D45a-1(S/N 1501-Up) : Optional Parts : Perforated Engine Side Cover(#1801-)
| 01***20 | Bolt,(With Auto Emergency Steering) | 6 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 6 |
Komatsu : D45a-1(S/N 1501-Up) : Optional Parts : Radiator Dust Proof Grid
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 6 |
| 12***73 | Support,R.H | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Optional Parts : Radiator Mask (For Cold Terrain Spec.) (Except Japan)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***16 | Screw,(Sandy And Dusty Terrain S.) | 4 |
| 01***10 | Washer,Spring (For Engine Room Lamp) | 4 |
Komatsu : D45a-1(S/N 1501-Up) : Optional Parts : Rops Cab (1/3)
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 8 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 16 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 18 |
Komatsu : D45a-1(S/N 1501-Up) : Optional Parts : Rops Cab (2/3)
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 12 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 20 |
| 01***08 | Screw, Terminal | 1 |
Komatsu : D45a-1(S/N 1501-Up) : Optional Parts : Rops Cab (3/3)
Komatsu : D45a-1(S/N 1501-Up) : Optional Parts : Rops Canopy
| 01***40 | Bolt,(With Center Guard) | 14 |
| 01***50 | Bolt,(For Tbg/Abe Spec.) | 6 |
| 01***70 | Bolt,Rear Carrier (With Gumpad) | 8 |
Komatsu : D45a-1(S/N 1501-Up) : Optional Parts : Screen Type Engine Side Cover (For Jungle) (Except Japan)(#1501-1800)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 10 |
Komatsu : D45a-1(S/N 1501-Up) : Optional Parts : Screen Type Engine Side Cover(#1501-1800)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 8 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 10 |
Komatsu : D45a-1(S/N 1501-Up) : Optional Parts : Strengthened Lower Guard
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 6 |
| 01***40 | Bolt,R.H. Outside And L.H. Inside, Bolt | 14 |
| 01***36 | Wahser-Spring, Washer,Spring (Without Towing Winch) | 6 |
Komatsu : D45a-1(S/N 1501-Up) : Optional Parts : Swing Drawber
| 01***50 | Bolt, Fuel Tank Mounting - Front Left | 4 |
| 01***65 | Bolt, Tank Mounting - Front | 6 |
| 01***30 | Bolt,(For 187kg And 155kg) | 4 |
Komatsu : D45a-1(S/N 1501-Up) : Optional Parts : Torque Convertor Oil Cooler? Additional(#1801-)
| 01***20 | Bolt,(Large Capacity Type) (Std) | 6 |
| 01***30 | Bolt,(For France Noise Suppression) | 4 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Optional Parts : Vandalism Protection
| 07***00 | Cap,(For Vandalism) (Not Shown) (Op) | 1 |
| 07***00 | Cap, Locking - Hydraulic Tank Oil Filler Cap | 1 |
| 07***00 | Cap,(For Vandalism Protection) | 1 |
S4d105-1c S/N 19078-Up
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Air Cleaner(#101262-151706)
| 04***10 | Ring,See Fig. K4010-65a0 | 1 |
| 09***60 | Plate? Instruction,(Japanese-English) (Not Shown) | 1 |
| 60***80 | Valve,Dust | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Air Intake Manifold And Connection
| 01***65 | Bolt,(For Alternator Bracket Mount) | 6 |
| 01***75 | Bolt,(See Fig.0142) | 4 |
| 01***80 | Bolt,(See Fig.0131) | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Alternator And Mounting
| 01***60 | Bolt,(Without Alternator Bracket) | 2 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 1 |
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Alternator(#101262-153564)
| 60***51 | Alternator A. (25a) | 1 |
| KD***52 | Bolt,Through | 3 |
| KD***70 | Rear Bracket Ass'Y | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Alternator(#153565-162069)
| 60***40 | Alternator A. (25a),(See Fig.0641) | 1 |
| KD***52 | Bolt,Through | 3 |
| KD***70 | Rear Bracket Ass'Y | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Alternator(#162070-)
| 60***30 | Alternator A. (25a),(With Non Hardening Pulley) | 1 |
| KD***57 | Bearing,Ball? Front | 1 |
| KD***70 | Bracket,Front | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Camshaft And Tappet
| 01***25 | Bolt,(Without Auto Priming System) | 2 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 2 |
| 01***16 | Washer,(For Shipping) | 2 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Corrosion Resistor (Except Japan)
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***29 | Washer,Spring (Cold Weather Spec.) | 4 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 4 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Crankshaft
| 61***11 | Bolt,Nylock (K2) | 1 |
| 61***00 | Metal Ass'Y | 1 |
| 61***50 | Thrust Metal Ass'Y | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Cylinder Block
| 01***20 | Bolt | 2 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***30 | Bolt,(For France Noise Suppression) | 4 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Cylinder Block(#101262-149999)
| 01***20 | Bolt | 2 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***30 | Bolt,(For France Noise Suppression) | 8 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Cylinder Head
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 1 |
| 01***30 | Bolt,(For France Noise Suppression) | 1 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 2 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Cylinder Head Cover
| 01***16 | Bolt,(For Slag Handling) | 1 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 1 |
| 07***23 | Clamp - Hose | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Engine Support
| 01***55 | Bolt,(For France Noise Suppression) | 8 |
| 01***45 | Bolt,(For Power Tilt Mech Angle) | 8 |
| 01***35 | Screw | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Exhaust Manifold And Turbocharger
| 01***60 | Bolt (M10-1.50x60) | 2 |
| 01***80 | Bolt, Mount Strainer Flange | 6 |
| 01***60 | Screw | 2 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Flywheel And Flywheel Housing
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 8 |
| 01***70 | Bolt, Spacer | 2 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 6 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Front Cover
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 6 |
| 01***22 | Bolt,(Cold Terrain Spec.) | 4 |
| 01***25 | Bolt,(Without Auto Priming System) | 5 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Fuel Filter
| 01***16 | Bolt (Welded) | 2 |
| 01***20 | Bolt | 2 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 2 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Fuel Injection Pump (Feed Pump)(#150007-)
| DK***20 | Bolt, Joint | 1 |
| DK***20 | Pump,Priming | 1 |
| DK***00 | Adapter | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Fuel Injection Pump (Governor) (1/2)(#150007-)
| DK***40 | Gasket,Air Compressor | 2 |
| DK***00 | Nut,Cap | 1 |
| DK***20 | Cover | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Fuel Injection Pump (Governor) (2/2)(#150007-)
| DK***00 | Adapter | 1 |
| DK***00 | Nut,Lock | 1 |
| DK***10 | Pin,Spring | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Fuel Injection Pump (Pump)(#150007-)
| 61***00 | Injection Pump Ass'Y | 1 |
| DK***20 | Plunger Ass'Y | 4 |
| DK***20 | Cover | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Fuel Injection Pump And Piping
| 01***20 | Bolt | 3 |
| 01***30 | Bolt | 1 |
| 01***35 | Bolt | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Fuel Injection Pump And Piping(#101262-103414)
| 01***30 | Bolt,(Cold Weather Spec.) | 1 |
| 01***55 | Bolt | 1 |
| 01***70 | Bolt | 3 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Gasket Kit
| 01***16 | Washer,Lock? Injection Gear | 1 |
| 07***65 | O-Ring,Injection Pump Case | 1 |
| 07***95 | O-Ring,Transmission Strainer | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Heater Signal And Relay Switch
| 60***70 | Switch,Air Intake Heater | 1 |
| 60***60 | Switch,Heater Relay | 1 |
| 60***71 | Signal,Signal | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Lubricating Oil Cooler
| 01***25 | Bolt,(Without Auto Priming System) | 5 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 3 |
| 01***35 | Bolt,(Without Auto Priming System) | 9 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Lubricating Oil Filter
| 01***90 | Bolt | 1 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 1 |
| 01***25 | Bolt (M10x1.50x25) | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Lubricating Oil Pump And Suction Pipe(#101262-149999)
| 01***25 | Bolt,(Without Auto Priming System) | 1 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 2 |
| 01***50 | Bolt,(For Trimming Dozer) | 4 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Lubricating Oil Pump And Suction Pipe(#150007-)
| 01***25 | Bolt,(Without Auto Priming System) | 1 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 3 |
| 01***40 | Bolt,(For Position Fixing) | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Muffler
| 01***30 | Bolt,(For France Noise Suppression) | 4 |
| 01***70 | Bolt, Spacer | 3 |
| 01***32 | Washer,(With Auto Emergency Steering) | 3 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Nozzle Holder
| 01***55 | Bolt,(For Trimming Dozer) | 8 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 8 |
| 07***12 | Gasket,Mechanical Pump Piping | 2 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Oil Pan
| 01***22 | Bolt,(Cold Terrain Spec.) | 20 |
| 01***25 | Bolt,(Without Auto Priming System) | 8 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 2 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Piston And Connecting Rod
| 04***18 | Ring, Retaining | 2 |
| 61***40 | Crank Pin Metal A | 4 |
| 61***00 | Connecting Rod Ass'Y | 4 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Rocker Arm
| 01***80 | Bolt,(Shim 5 Pieces Over) | 1 |
| 01***06 | Nut, Regular Hexagon (M8-1.25) | 8 |
| 01***36 | Washer,Radio Controlled Slag Handling | 4 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Starting Motor (1/2) (7.5kw) (Except Japan)
| 60***81 | Starting Motor Ass'Y,7.5kw | 1 |
| KD***01 | O-Ring | 1 |
| KD***70 | Center Bracket A | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Starting Motor (1/2)(#102089-162079)
| 60***43 | Starting Motor A.,(5.5kw) (See Fig.0661) | 1 |
| KD***10 | Clutch Ass'Y,Over Running | 1 |
| KD***01 | O-Ring | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Starting Motor (1/2)(#162080-)
| 60***80 | Starting Motor Ass'Y,(5.5kw) | 1 |
| KD***30 | Bracket,Center | 1 |
| KD***50 | O-Ring | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Starting Motor (2/2) (7.5kw) (Except Japan)
| KD***01 | Washer,Seal | 2 |
| KD***30 | Holder | 1 |
| KD***05 | Terminal Ass'Y | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Starting Motor (2/2)(#102089-162079)
| KD***01 | Washer,Seal | 2 |
| KD***80 | Shift Lever Ass'Y | 1 |
| KD***30 | Contactor,Moving | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Starting Motor (2/2)(#162080-)
| KD***50 | O-Ring | 1 |
| KD***30 | Cap, Gum | 1 |
| KD***10 | Ring,Clip | 2 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Starting Motor And Mounting
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 3 |
| 01***36 | Washer,Radio Controlled Slag Handling | 3 |
| 07***00 | O-Ring,(F4350-65a1 -5 ) | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Starting Motor(#101262-102088)
| 60***42 | Starting Motor A.,(5.5kw) (See Fig.2546) | 1 |
| KD***10 | Clutch Ass'Y,Over Running | 1 |
| KD***80 | Shift Lever Ass'Y | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Turbocharger (Except Japan)
| 61***00 | Turbocharger Ass'Y,(See Fig.2141) | 1 |
| 61***01 | Turbocharger Ass'Y,(See Fig.2141) | 1 |
| 61***02 | Turbocharger Ass'Y | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Turbocharger Lubricating Oil Piping
| 01***22 | Bolt,(Cold Terrain Spec.) | 2 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 2 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 2 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Water Pump And Cooling Fan (Tropical Sandy And Dusty Spec.) (Except Japan)(#150007-)
| 01***30 | Bolt,(Cold Terrain Spec.) | 3 |
| 01***50 | Bolt | 4 |
| 01***55 | Bolt,(For Suction? Reversible Fan) | 2 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Water Pump And Cooling Fan(#101262-149999)
| 01***18 | Bolt | 2 |
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 3 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Water Pump And Cooling Fan(#150007-)
| 01***30 | Bolt,(Cold Terrain Spec.) | 3 |
| 01***50 | Bolt | 4 |
| 01***55 | Bolt,(For Suction? Reversible Fan) | 2 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-1c S/N 19078-Up : Water Separator
| 07***60 | O-Ring,(For Pc750?800?1800) (A2610) | 1 |
| 60***00 | Water Separator A.,(4d105-5h? 4d105-5t) | 1 |
| 60***60 | Plug,Drain (4d105-5h? 4d105-5t) | 1 |
S4d105-2c S/N 19078-Up
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Air Intake Connection And Air Cleaner
| 01***22 | Bolt,(Cold Terrain Spec.) | 3 |
| 01***25 | Bolt,(Without Auto Priming System) | 4 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 3 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Alternator
| 60***50 | Alternator A. (13a),(With Non Hardening Pulley) | 1 |
| KD***30 | Holder,Brush | 1 |
| KD***80 | Packing | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Alternator (800w)
| 60***70 | Alternator A | 1 |
| KD***40 | Front Bracket A | 1 |
| KD***80 | Plate | 2 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Alternator And Mounting
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 1 |
| 01***40 | Bolt,(Dust And Dirt Protection) | 1 |
| 01***55 | Bolt,(For Suction? Reversible Fan) | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Balancer Shaft
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 4 |
| 04***19 | Key,(Dk025805-1910) | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Camshaft And Tappet
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 1 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 2 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Compression Release
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 1 |
| 01***25 | Bolt,(Without Auto Priming System) | 1 |
| 01***05 | Nut (Welded) | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Crankshaft And Timing Gear
| 01***30 | Bolt,(For France Noise Suppression) | 4 |
| 02***04 | Plug,(Not Shown) | 4 |
| 04***25 | Key | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Cylinder Block
| 01***55 | Bolt,(For Suction? Reversible Fan) | 4 |
| 01***65 | Bolt | 3 |
| 04***14 | Pin, Dowel | 2 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Cylinder Head
| 01***16 | Bolt,(For Slag Handling) | 6 |
| 01***35 | Stud | 8 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 6 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Cylinder Head Cover
| 01***22 | Bolt,(Cold Terrain Spec.) | 10 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 1 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Exhaust Manifold And Muffler
| 01***35 | Stud | 1 |
| 01***11 | Nut (M14-1.50 Thd), Nut; Was 01582-01411 | 2 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 2 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Flywheel And Flywheel Housing
| 01***14 | Bolt | 3 |
| 01***18 | Bolt | 6 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 17 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Front Cover And Support
| 01***12 | Bolt,(Without R.P.C.U.) | 2 |
| 01***22 | Bolt | 2 |
| 01***45 | Bolt,(For Suction? Reversible Fan) | 10 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Fuel Filter And Mounting
| 01***35 | Bolt, Mounting - Flywheel Housing End | 2 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 2 |
| 07***12 | Gasket,Mechanical Pump Piping | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Fuel Injection Pump (Feed Pump)
| 61***10 | Injection Pump A.,(See Fig.451) | 1 |
| 61***11 | Injection Pump A | 1 |
| DK***20 | Housing | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Fuel Injection Pump (Governor)
| 61***10 | Injection Pump A.,(See Fig.451) | 1 |
| DK***00 | Adapter | 1 |
| DK***20 | Capsule,Spring | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Fuel Injection Pump (Pump)
| 61***10 | Injection Pump A.,(See Fig.451) | 1 |
| 61***11 | Injection Pump A | 1 |
| DK***00 | Shim? 0.85mm | 0 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Fuel Injection Pump And Piping
| 01***16 | Bolt (Welded) | 1 |
| 01***18 | Bolt | 4 |
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 10 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Fuel Nozzle And Spill Pipe
| 01***65 | Bolt | 8 |
| 07***12 | Gasket,Mechanical Pump Piping | 6 |
| 07***37 | Clamp, Overflow Hose | 2 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Gasket Kit
| 01***12 | Washer,Lock (K2) | 1 |
| 01***08 | Washer,Lock (Kit) | 1 |
| 01***16 | Washer,Lock (K2) | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Lubricating Oil Cooler
| 01***35 | Bolt, Mounting - Flywheel Housing End | 8 |
| 01***08 | Screw | 4 |
| 01***08 | Nut,R.H. Thread | 4 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Lubricating Oil Filter
| 01***30 | Bolt,(For France Noise Suppression) | 1 |
| 01***80 | Bolt, Mount Strainer Flange | 2 |
| 01***04 | Nut | 2 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Lubricating Oil Pump
| 01***16 | Bolt,(For Slag Handling) | 2 |
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 1 |
| 01***25 | Bolt,(Without Auto Priming System) | 2 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Lubricating Oil Strainer
| 01***22 | Bolt | 2 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***55 | Bolt,(For Suction? Reversible Fan) | 3 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Oil Pan
| 01***16 | Bolt,(For Slag Handling) | 2 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 1 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 28 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Piston And Connecting Rod
| 61***15 | Bolt,(Service Parts) | 2 |
| 61***22 | Nut,(Service Parts) | 2 |
| 61***30 | Washer,(Service Parts) | 2 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Rocker Arm And Housing
| 01***12 | Bolt,(Without R.P.C.U.) | 1 |
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***85 | Bolt | 15 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Safety Relay And Resistor
| 60***30 | Resistor | 1 |
| 60***10 | Alternator A | 1 |
| 60***10 | Regulator Ass'Y,For 35a Alternator (Not Shown) | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Starting Motor And Mounting
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 3 |
| 01***36 | Washer,Radio Controlled Slag Handling | 3 |
| 60***70 | Starting Motor A.,(See Fig.545) | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Starting Motor(#.-)
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Starting Motor(#18273-.)
| 60***70 | Starting Motor A.,(See Fig.545) | 1 |
| KD***90 | Cover | 1 |
| KD***90 | Center Bracket A | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Thermostat And Piping(#18273-25354)
| 01***12 | Bolt (M8-1.25x12) | 3 |
| 01***22 | Bolt,(Cold Terrain Spec.) | 3 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 6 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Thermostat And Piping(#25355-)
| 01***25 | Bolt,(Without Auto Priming System) | 2 |
| 01***05 | Nut (Welded) | 2 |
| 01***19 | Washer,(Not Used With Ventilator) | 2 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Turbocharger (Except Japan)
| 61***01 | Turbocharger Ass'Y,(See Fig.141) | 1 |
| 61***02 | Turbocharger Ass'Y,(See Fig.141) | 1 |
| 61***03 | Turbocharger Ass'Y,(See Fig.141) | 1 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Turbocharger Lubricating Oil Piping
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***22 | Bolt,(Cold Terrain Spec.) | 2 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 4 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Water Pipe And Thermostat
| 01***18 | Bolt | 3 |
| 01***22 | Bolt,(Cold Terrain Spec.) | 9 |
| 01***35 | Bolt,(Without Auto Priming System) | 3 |
Komatsu : D45a-1(S/N 1501-Up) : S4d105-2c S/N 19078-Up : Water Pump And Cooling Fan
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***25 | Bolt,(Without Auto Priming System) | 8 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 6 |
Steering System And Final Drive
Komatsu : D45a-1(S/N 1501-Up) : Steering System And Final Drive : Bevel Gear And Shaft
| 01***10 | Bolt, Mount Flasher | 4 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 6 |
| 01***20 | Bolt | 4 |
Komatsu : D45a-1(S/N 1501-Up) : Steering System And Final Drive : Brake Band
| 01***40 | Bolt,(Not Used With Cab) | 8 |
| 01***08 | Nut, Regular Hexagon (M10-1.50) | 2 |
| 01***42 | Washer,Spring (For Pedal Steering) | 8 |
Komatsu : D45a-1(S/N 1501-Up) : Steering System And Final Drive : Brake Lock Lever(#1801-)
| 01***16 | Screw,(For Auto-Emergency Steering) | 1 |
| 01***08 | Washer,(For Mounting First Aid Kit) | 1 |
| 04***10 | Pin,Cotter (Without Towing Winch), Cotter Pin; Was 04050-11610 | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Steering System And Final Drive : Brake Pedal(#1501-1800)
| 01***40 | Bolt,(Dust And Dirt Protection) | 4 |
| 01***20 | Screw | 1 |
| 01***10 | Nut,(Dust?Drip Proof? Trimming S.) | 1 |
Komatsu : D45a-1(S/N 1501-Up) : Steering System And Final Drive : Brake Pedal(#1801-)
| 01***45 | Bolt,(Cold Terrain Spec.) | 3 |
| 01***12 | Screw | 1 |
| 01***10 | Nut,(Dust?Drip Proof? Trimming S.) | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Steering System And Final Drive : Final Drive Gear
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 24 |
| 01***20 | Bolt,(Used When Towing Winch) | 4 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 12 |
Komatsu : D45a-1(S/N 1501-Up) : Steering System And Final Drive : Final Drive Housing
| 01***18 | Bolt (Op) | 20 |
| 01***30 | Bolt,(For Center Guard) | 8 |
| 01***40 | Bolt,(Not Used With Cab) | 50 |
Komatsu : D45a-1(S/N 1501-Up) : Steering System And Final Drive : Sprocket And Shaft
| 01***25 | Bolt,(Without Auto Priming System) | 16 |
| 01***50 | Bolt - Torque Converter Totransmission Mounting | 12 |
| 01***40 | Bolt,(Not Used With Cab) | 8 |
Komatsu : D45a-1(S/N 1501-Up) : Steering System And Final Drive : Steering Case And Main Frame
| 01***16 | Bolt,(For Slag Handling) | 2 |
| 01***25 | Bolt,(For Slag Handling) | 4 |
| 01***40 | Bolt, Fuel Tank Mounting - Rear | 4 |
Komatsu : D45a-1(S/N 1501-Up) : Steering System And Final Drive : Steering Case Cover (1/2)
| 01***20 | Bolt,(Large Capacity Type) (Std) | 6 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 6 |
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Steering System And Final Drive : Steering Case Cover (2/2)
| 01***20 | Bolt,(Large Capacity Type) (Std) | 4 |
| 01***40 | Bolt,(Dust And Dirt Protection) | 4 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 4 |
Komatsu : D45a-1(S/N 1501-Up) : Steering System And Final Drive : Steering Clutch
| 01***10 | Nut (K10) | 2 |
| 04***30 | Ring,Snap? Sprocket | 2 |
| 06***15 | Bearing | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Steering System And Final Drive : Steering Control Lever(#1501-1800)
| 01***30 | Bolt,Radio Controlled Slag Handling | 7 |
| 01***45 | Bolt,(Cold Terrain Spec.) | 2 |
| 01***10 | Nut,(Dust?Drip Proof? Trimming S.) | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Steering System And Final Drive : Steering Control Lever(#1801-)
| 01***20 | Bolt,(Large Capacity Type) (Std) | 2 |
| 01***22 | Bolt | 2 |
| 01***25 | Bolt - Rear Guard Mounting | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Steering System And Final Drive : Steering Control Valve (1/2)
| 01***35 | Bolt,(Without Auto Priming System) | 2 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 1 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 4 |
Komatsu : D45a-1(S/N 1501-Up) : Steering System And Final Drive : Steering Control Valve (2/2)
| 01***18 | Bolt | 5 |
| 01***06 | Nut, Regular Hexagon (M8-1.25) | 2 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 5 |
Komatsu : D45a-1(S/N 1501-Up) : Steering System And Final Drive : Steering Filter
| 01***30 | Bolt,(For France Noise Suppression) | 4 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 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 : D45a-1(S/N 1501-Up) : Steering System And Final Drive : Steering Lever Linkage(#1501-1800)
| 01***30 | Bolt,(Cold Terrain Spec.) | 2 |
| 01***07 | Nut | 4 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Steering System And Final Drive : Steering Lever Linkage(#1801-.)
| 01***30 | Bolt,(Cold Terrain Spec.) | 2 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 2 |
| 01***10 | Nut,(Service Only) | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Steering System And Final Drive : Steering Piping(#1501-1800)
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***30 | Bolt,(For France Noise Suppression) | 8 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 4 |
Komatsu : D45a-1(S/N 1501-Up) : Steering System And Final Drive : Steering Piping(#1801-)
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***30 | Bolt,(For France Noise Suppression) | 8 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 4 |
Komatsu : D45a-1(S/N 1501-Up) : Steering System And Final Drive : Steering Pump
| 04***18 | Ring, Snap | 1 |
| 07***60 | Seal,Oil | 1 |
| 07***01 | Pump Ass'Y,(See Fig.341) | 1 |
Tool And Kit
Komatsu : D45a-1(S/N 1501-Up) : Tool And Kit : Service Kit
| 07***80 | O-Ring (Kit) | 1 |
| 07***14 | O-Ring | 1 |
| 07***70 | O-Ring,(For Slag Handling) | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Tool And Kit : Tool
| 07***00 | Pump,Grease | 1 |
| 07***00 | Pump,Grease | 1 |
| 07***00 | Cartridge,Grease | 1 |
Torque Convertor And Transmission
Komatsu : D45a-1(S/N 1501-Up) : Torque Convertor And Transmission : 1st Clutch
| 04***14 | Pin, Dowel | 1 |
| 04***28 | Pin, Dowel - Transmission Case, Pin-Dowel | 3 |
| 04***30 | Ring, Retaining | 1 |
Komatsu : D45a-1(S/N 1501-Up) : Torque Convertor And Transmission : 2nd Clutch And 3rd Clutch
| 01***60 | Bolt (M10-1.50x60) | 6 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 8 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 6 |
Komatsu : D45a-1(S/N 1501-Up) : Torque Convertor And Transmission : Damper(#1501-1800)
| 01***16 | Bolt,(For Slag Handling) | 2 |
| 01***18 | Bolt (Op) | 12 |
| 01***30 | Bolt,(For France Noise Suppression) | 12 |
Komatsu : D45a-1(S/N 1501-Up) : Torque Convertor And Transmission : Damper(#1801-)
| 01***16 | Bolt,(For Slag Handling) | 2 |
| 01***18 | Bolt (Op) | 12 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 12 |
Komatsu : D45a-1(S/N 1501-Up) : Torque Convertor And Transmission : Forward Clutch And Reverse Clutch
| 04***20 | Ring, Retaining | 1 |
| 04***20 | Ring, Retainer | 1 |
| 04***30 | Ring, Snap, Snap-Ring | 1 |
Komatsu : D45a-1(S/N 1501-Up) : Torque Convertor And Transmission : Torque Convertor Housing(#1501-1800)
| 01***16 | Bolt,(For Slag Handling) | 4 |
| 01***30 | Bolt,(For France Noise Suppression) | 11 |
| 01***30 | Bolt,Radio Controlled Slag Handling | 6 |
Komatsu : D45a-1(S/N 1501-Up) : Torque Convertor And Transmission : Torque Convertor Housing(#1801-)
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***30 | Bolt,(For France Noise Suppression) | 4 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 1 |
Komatsu : D45a-1(S/N 1501-Up) : Torque Convertor And Transmission : Torque Convertor Oil Pump And Filler(#1501-1800)
| 01***30 | Bolt,(Cold Terrain Spec.) | 4 |
| 01***30 | Bolt,(For France Noise Suppression) | 7 |
| 01***07 | Castle Nut | 1 |
Komatsu : D45a-1(S/N 1501-Up) : Torque Convertor And Transmission : Torque Convertor Valve(#1501-1800)
| 01***65 | Bolt,(For Suction Fan)(4d130-1d) | 4 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 4 |
| 07***22 | O-Ring,(For Slag Handling) | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Torque Convertor And Transmission : Torque Convertor Valve(#1801-)
| 01***65 | Bolt,(For Suction Fan)(4d130-1d) | 2 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 2 |
| 04***87 | Ball | 1 |
Komatsu : D45a-1(S/N 1501-Up) : Torque Convertor And Transmission : Transmission Case
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 3 |
| 01***30 | Bolt,(For France Noise Suppression) | 14 |
| 01***40 | Bolt,(Dust And Dirt Protection) | 16 |
Komatsu : D45a-1(S/N 1501-Up) : Torque Convertor And Transmission : Transmission Case Cover And Lever
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 15 |
| 01***08 | Nut, Regular Hexagon (M10-1.50) | 4 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 15 |
Komatsu : D45a-1(S/N 1501-Up) : Torque Convertor And Transmission : Transmission Control Lever
| 01***22 | Bolt,(Cold Terrain Spec.) | 3 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 3 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 3 |
Komatsu : D45a-1(S/N 1501-Up) : Torque Convertor And Transmission : Transmission Control Valve (1/2)
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 6 |
| 01***30 | Bolt,(Cold Terrain Spec.) | 2 |
| 01***06 | Nut, Regular Hexagon (M8-1.25) | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Torque Convertor And Transmission : Transmission Control Valve (2/2)
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***55 | Bolt,(For Suction? Reversible Fan) | 4 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Torque Convertor And Transmission : Transmission Lubrication Valve
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 2 |
| 01***55 | Bolt,(For Suction? Reversible Fan) | 4 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Torque Convertor And Transmission : Transmission Mounting
| 01***30 | Bolt,(For France Noise Suppression) | 2 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 2 |
| 01***40 | Bolt,(Not Used With Cab) | 12 |
Komatsu : D45a-1(S/N 1501-Up) : Torque Convertor And Transmission : Transmission Oil Filter
| 01***30 | Bolt,(For France Noise Suppression) | 5 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 5 |
| 07***75 | O-Ring,Steering Oil Filter | 1 |
Komatsu : D45a-1(S/N 1501-Up) : Torque Convertor And Transmission : Transmission Oil Piping
| 01***20 | Bolt,(Large Capacity Type) (Std) | 2 |
| 01***30 | Bolt,(For France Noise Suppression) | 8 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 4 |
Komatsu : D45a-1(S/N 1501-Up) : Torque Convertor And Transmission : Transmission Oil Pump
| 04***18 | Ring, Snap | 1 |
| 07***60 | Seal,Oil | 1 |
| 07***00 | Pump Ass'Y,(Far028) | 1 |
Komatsu : D45a-1(S/N 1501-Up) : Torque Convertor And Transmission : Turbine And Stator(#1501-1800)
| 01***30 | Bolt,(Cold Terrain Spec.) | 8 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 8 |
| 01***30 | Bolt,(For France Noise Suppression) | 12 |
Komatsu : D45a-1(S/N 1501-Up) : Torque Convertor And Transmission : Turbine And Stator(#1801-)
| 01***30 | Bolt,(Cold Terrain Spec.) | 8 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 8 |
| 01***30 | Bolt,(For France Noise Suppression) | 12 |
Komatsu : D45a-1(S/N 1501-Up) : Torque Convertor And Transmission : Universal Joint(#1501-1800)
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 16 |
| 07***45 | Bolt,(Tree Pusher Dozer) | 16 |
| 12***10 | Universal Joint A | 1 |
Track
Komatsu : D45a-1(S/N 1501-Up) : Track : Carrier Roller
| 01***20 | Bolt,(Large Capacity Type) (Std) | 2 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 3 |
| 01***45 | Bolt,(For Slag Handling) | 8 |
Komatsu : D45a-1(S/N 1501-Up) : Track : Idler
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 12 |
| 01***40 | Bolt,(Not Used With Cab) | 8 |
| 01***13 | Nut - Cylinder Mounting | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Track : Recoil Spring
| 01***16 | Bolt,(Sandy And Dusty Spec.) | 2 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 6 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 12 |
Komatsu : D45a-1(S/N 1501-Up) : Track : Track Frame
| 01***30 | Bolt,(For Center Guard) | 30 |
| 01***40 | Bolt,(Not Used With Cab) | 2 |
| 01***45 | Bolt, Mount Center Hinge Retainer (Lower) | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Track : Track Roller
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 12 |
| 01***55 | Bolt,(For Long Track) | 48 |
| 01***30 | Washer,Spring(Sandy?Dusty Terrain S.) | 12 |
Komatsu : D45a-1(S/N 1501-Up) : Track : Track Shoe (Lubricate Type)(#3201-)
| 01***22 | Nut? Shoe (Kit) | 280 |
| 12***00 | Track Shoe Ass'Y | 1 |
| 12***10 | Track Shoe Ass'Y | 1 |
Komatsu : D45a-1(S/N 1501-Up) : Track : Track Shoe (Master Pin Type)(#1501-3200)
| 01***22 | Nut? Shoe (Kit) | 296 |
| 12***10 | Track Link Ass'Y | 1 |
| 12***11 | Track Link Ass'Y | 1 |
Komatsu : D45a-1(S/N 1501-Up) : Track : Track Shoe (Master Pin Type)(#3201-)
| 01***22 | Nut? Shoe (Kit) | 296 |
| 12***03 | Track Shoe Ass'Y | 1 |
| 12***03 | Track Shoe Ass'Y | 1 |
Work Equipment
Komatsu : D45a-1(S/N 1501-Up) : Work Equipment : Angle Blade
| 01***42 | Washer,Spring (For Pedal Steering) | 1 |
| 02***60 | Bolt (Op) | 22 |
| 02***85 | Bolt | 4 |
Komatsu : D45a-1(S/N 1501-Up) : Work Equipment : C-Frame
| 01***55 | Bolt,(For France Noise Suppression) | 4 |
| 01***45 | Bolt, Fuel Tank Mounting - Front Right | 16 |
| 01***55 | Bolt, Strut Mounting - To Radiator And Rear Frame | 4 |
Work Equipment Control System
Komatsu : D45a-1(S/N 1501-Up) : Work Equipment Control System : Blade Control Lever(#1501-1800)
| 01***20 | Bolt,(Large Capacity Type) (Std) | 4 |
| 01***30 | Bolt,(For France Noise Suppression) | 3 |
| 01***06 | Nut? L.H. Thread,R.H. Thread | 1 |
Komatsu : D45a-1(S/N 1501-Up) : Work Equipment Control System : Blade Control Lever(#1801-)
| 01***18 | Bolt (Op) | 2 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 4 |
| 01***30 | Bolt,(For France Noise Suppression) | 3 |
Komatsu : D45a-1(S/N 1501-Up) : Work Equipment Control System : Blade Lift Cylinder
| 01***35 | Bolt,(Without Auto Priming System) | 4 |
| 01***45 | Bolt,(S6d155-4b) | 4 |
| 01***40 | Bolt,(Dust And Dirt Protection) | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Work Equipment Control System : Hydraulic Control Valve (1/2)
| 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 : D45a-1(S/N 1501-Up) : Work Equipment Control System : Hydraulic Control Valve (2/2)
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 3 |
| 01***35 | Bolt, Mounting - Flywheel Housing End | 3 |
| 01***70 | Bolt, Spacer | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Work Equipment Control System : Hydraulic Filter And Piping
| 01***30 | Bolt,(Cold Terrain Spec.) | 1 |
| 01***30 | Bolt,(For France Noise Suppression) | 4 |
| 01***35 | Bolt - Torque Converter Totransmission Mounting | 2 |
Komatsu : D45a-1(S/N 1501-Up) : Work Equipment Control System : Hydraulic Piping (Tank To Blade Lift Cylinder)
| 01***30 | Bolt,(Cold Terrain Spec.) | 8 |
| 01***35 | Bolt,(Without Auto Priming System) | 4 |
| 01***40 | Bolt,(For Position Fixing) | 4 |
Komatsu : D45a-1(S/N 1501-Up) : Work Equipment Control System : Hydraulic Piping (Tank To Pump)
| 01***65 | Bolt,(For Suction Fan)(4d130-1d) | 4 |
| 01***75 | Bolt,(For D57sr) | 4 |
| 01***40 | Bolt,(Dust And Dirt Protection) | 4 |
Komatsu : D45a-1(S/N 1501-Up) : Work Equipment Control System : Hydraulic Pump(#1501-1800)
| 04***20 | Ring, Snap | 1 |
| 07***62 | Seal,Oil | 1 |
| 07***01 | Pump Ass'Y,(Par056-101) | 1 |
Komatsu : D45a-1(S/N 1501-Up) : Work Equipment Control System : Hydraulic Pump(#1801-)
| 04***18 | Ring,Snap (Itl) | 1 |
| 07***62 | Seal,Oil (Itl) | 1 |
| 70***00 | Pump Ass'Y,(Kar 056) | 1 |
Komatsu : D45a-1(S/N 1501-Up) : Work Equipment Control System : Hydraulic Tank
| 01***16 | Bolt,(For Slag Handling) | 2 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 8 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 34 |
D45A-1(S/N 1501-UP) serial number reference
On the D45A-1, the serial/PIN plate is inside the cab, mounted on the frame behind or beside the operator's seat. On some units the number is also stamped into the rear of the frame on the left side near the final drive. This generation predates Komatsu's later 3-letter alphanumeric PIN prefixes, so the plate shows only a straight numeric serial (e.g. 1501, 1502...) - read that number directly against the parts/shop manual's serial-break table rather than looking for a letter code.
| Prefix | Identifies | Notes |
|---|---|---|
| 1501 | D45A-1 Standard-track dozer (JPN production run) | No alphanumeric PIN prefix on this generation - the plate shows a straight numeric serial run starting near 1501, with no stated upper end. Standard-track (A) configuration. Engine is the Komatsu S4D105-1, 4-cylinder diesel, about 67 kW (90 hp) gross at 2400 rpm; operating weight is about 9.5 t (21,000 lb / 9,550 kg). Undercarriage carries 5 track rollers and 1 carrier roller per side. A combined shop manual covering the D40A-1/D40P-1/D45A-1/D45P-1/D45S-1 series lists the D45A-1 cut-in serial as 1504 rather than 1501, while a standalone D45A-1 parts manual is titled for serial 1501-and-up; for a unit near that boundary, confirm the exact cut-in serial with a dealer. |
Frequently asked questions
What engine powers the Komatsu D45A-1 (S/N 1501-UP)?
It uses Komatsu's S4D105-1, a naturally aspirated four-cylinder diesel of about 3.98 liters displacement, rated near 67 kW (90 hp) at 2400 rpm, paired with a torque-converter powershift transmission.
What is the operating weight of the Komatsu D45A-1?
The standard-gauge A configuration weighs about 9.55 t (21,050 lb). Weight varies by configuration: the wide-gauge P and swamp-spec S versions on the same chassis run heavier due to their wider undercarriages.
What replaced the Komatsu D45A-1?
Komatsu did not continue the D45 model number as a distinct line after this -1 generation. There is no confirmed direct same-name successor; check with a Komatsu dealer for the closest current mid-size dozer equivalent.
What D45A-1(S/N 1501-UP) owners discuss
What do owners say about the D45A-1's engine and Torqflow transmission combination?
This machine pairs a naturally aspirated 4-cylinder S4D105-1 diesel (about 67 kW / 90 hp at 2400 rpm) with Komatsu's TF (Torqflow) torque-converter powershift, 3 speeds forward and 3 reverse. Owners of this generation of Torqflow-equipped Komatsu dozer say the converter itself is durable if the transmission oil is kept clean and changed on schedule, but it is unforgiving of neglect. Across the wider Torqflow family, the classic failure path is a worn or leaking forward-clutch piston seal that lets oil bypass the cooler and flood the converter housing, showing up as gradual overheating and loss of push under load. Periodic stall-speed checks and clean fluid catch this early. Varies by hour count and prior maintenance.
How well do the steering clutches and brakes hold up on this machine?
This series uses mechanical steering clutches with contracting brake bands per side rather than hydrostatic steering. Across dozers of this same clutch-and-brake design, the most common wear and adjustment item is the brake band: as the lining wears, the machine starts to pull toward one side or turns sluggishly until the band is re-adjusted. A quick field test is to bury the blade and load both tracks evenly, checking that each side digs in and turns at the same rate. Because steering and braking are safety-critical, have your dealer verify clutch and brake band adjustment and lining wear before returning the machine to regular service.
What undercarriage wear pattern should owners expect?
The D45A-1 runs a per-side configuration of 37 track shoes, 5 track rollers, and 1 carrier roller on roughly 1.55 m (5.1 ft) gauge, with ground pressure around 7.2 psi. Owners of this dozer weight class (about 9.5 t / 21,000 lb) consistently point to undercarriage as the largest wear-cost item over the life of the machine. General inspection guidance that applies here: sprocket teeth that have gone pointed are worn past service life, while flat-topped teeth are still serviceable; track rollers should show even wear, and a roller whose flange rubs the link rail is close to replacement. Running track tension too tight accelerates hub bearing wear, so tension and ground conditions explain most of the variance in undercarriage life between machines.
Are there known quirks with the S4D105-1 engine on this dozer?
The S4D105-1 is a mechanically injected, naturally aspirated diesel with no electronic engine controls, consistent with this machine's production era. Owners of the 105-series Komatsu engine family describe it as a simple, durable design for its class, tolerant of average fuel quality. In cold climates, starting performance depends on functioning glow plugs or an ether-start aid and a healthy battery bank, since there is no modern cold-start assist. Reported overheating on these engines traces more often to a clogged radiator core or a slipping/worn fan belt than to an internal engine fault. Confirm your specific engine suffix and any factory updates with your dealer using the machine's serial number.
What electrical or sensor issues come up on a machine this old?
There is no ECM or sensor network on this generation of dozer — just a conventional charging and starting circuit (alternator/generator, regulator, starter motor, and basic gauges). Reported complaints center on corroded battery terminals and ground straps, worn starter solenoids, and failed temperature or oil-pressure gauge senders, not anything resembling a modern fault code. On a machine this age, "electrical issues" almost always means basic charging-and-starting-circuit maintenance rather than diagnostic troubleshooting.
Is parts and service support still practical for this model?
This is a long-discontinued platform, and the SN 1501-UP designation marks a specific production run within the D45A-1 series. Owners say the serial number needs to be verified carefully when sourcing undercarriage, engine, or transmission parts, since early and late production runs within the same model line are not always interchangeable. Independent and aftermarket suppliers cover most routine wear items (undercarriage, filters, seals); OEM-only components can take longer lead time to source than on a current-production dozer. Confirm exact part interchange for your serial range with your dealer.
What should a buyer check before purchasing a used D45A-1 (S/N 1501-UP)?
Confirm the serial number falls within the 1501-up range so parts and spec references match. Run the engine to full operating temperature and watch for smoke or oil weeping from the torque converter housing under load, a sign of internal converter seal leakage. Bury the blade and verify both tracks pull and turn evenly to check steering clutch and brake condition. Inspect sprockets, rollers, and idlers for wear (pointed sprocket teeth indicate the limit has been reached). Pull a sample of transmission and final drive oil and check for metal or contamination. Confirm the charging system holds voltage under load and that temperature/pressure gauges read correctly. Because steering, braking, and transmission condition are safety- and cost-critical on a machine this age, have a dealer or qualified tech inspect the steering clutch/brake and transmission before finalizing the purchase.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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