Komatsubulldozersmall ( - d39)
Komatsu D37PX-21(S/N 5001-5499-UP (For North America))
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu D37PX-21 is a compact crawler dozer designed for utility and light earthmoving applications. This North American configuration (S/N 5001-5499-UP) features the SAA4D102E-2 turbocharged engine with air-to-air aftercooling, delivering 85 HP (63.4 kW). The machine utilizes a dual-path hydrostatic transmission and is built within the D31/D37/D39 series lineage. It is characterized by its low ground pressure of approximately 4.2 psi (0.3 bar) and an operating weight of 13,910 lbs (6,309.5 kg).
Across generations, the D37PX-21 represents a refined evolution in the PX (LGP) series, focusing on improved visibility through super-slant nose designs and enhanced operator comfort via silicon oil filled cab dampers. In today's used market, this machine is highly valued for its specialized low-pressure undercarriage and efficient hydraulic performance. Its presence in the parts market is sustained by the high demand for reliable components for the SAA4D102E-2 engine and hydrostatic powertrain, making it a staple for site preparation and grading tasks.
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 D37PX-21(S/N 5001-5499-UP (For North America)) specifications
Engine
| Engine Model | SAA4D102E-2 |
| Net Power | 85 hp (63.4 kW) |
| Displacement | 240 cu in (3932.9 cc) |
| Number of Cylinders | 4 |
| Aspiration | Turbocharged and air-to-air aftercooled |
Weights
| Operating Weight | 13,910 lb (6309.5 kg) |
Dimensions
| Length Overall | 158.4 in (402.3 cm) |
| Width Over Tracks | 90.0 in (228.6 cm) |
| Height To Top Of Cab | 106.8 in (271.3 cm) |
| Ground Clearance | 15.6 in (39.6 cm) |
| Track Gauge | 66.0 in (167.6 cm) |
| Length of Track on Ground | 88.8 in (225.6 cm) |
Undercarriage
| Standard Shoe Size | 24 in (61.0 cm) |
| Number of Shoes Per Side | 41 |
| Number of Track Rollers Per Side | 6 |
| Track Pitch | 65 in (165.1 cm) |
| Ground Pressure | 4.12–4.2 psi (0.3 bar) |
| Ground Contact Area | 4170 in² (68334.2 cm³) |
Performance
| Max Speed Forward | 5.3 mph (8.5 km/h) |
| Max Speed Reverse | 5.3 mph (8.5 km/h) |
| Transmission Type | Dual-path, hydrostatic transmission |
| Number of Forward Gears | 3 |
| Number of Reverse Gears | 3 |
Blades
| Standard Blade Width | 10.7–128 in (271.8–3250 mm) |
| Blade Height | 2.9–3 in (73.7–76.2 mm) |
| Blade Angle | 25 degrees |
Service Capacities
| Fuel Capacity | 43.6 gal (165.0 L) |
| Engine Oil Capacity | 3.3 gal (12.5 L) |
| Hydraulic Fluid Capacity | 12.4 gal (46.9–47 L) |
| Cooling System Capacity | 7.1 gal (26.9–27 L) |
| Final Drives Fluid Capacity | 0.9 gal (3.4–3.5 L) |
Hydraulic System
| Relief Valve Pressure | 2990 psi (206.2 bar) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
D37PX-21(S/N 5001-5499-UP (For North America)) fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine Crankcase (w/ filter) | 12.5 L (3.3 gal) | Verify with your dealer |
| Cooling System | 26.9 L - 27 L (7.1 gal) | Verify with your dealer |
| Fuel Tank | 165 L (43.6 gal) | Verify with your dealer |
| Transmission/Powertrain (Dual Power Shift / Hydrostatic) | Not specified | Verify with your dealer |
| Bevel Gear/Steering Compartments | Not specified | Verify with your dealer |
| Final Drives (each) | 3.4 L - 3.5 L (0.9 gal) | Verify with your dealer |
| Hydraulic System/Tank | 46.9 L - 47 L (12.4 gal) | Verify with your dealer |
| Grease | Not specified | Verify with your dealer |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Komatsu D37PX-21(S/N 5001-5499-UP (For North America)) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 50 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 4,000 h |
|
Servicing the D37PX-21(S/N 5001-5499-UP (For North America)) beyond the schedule
Predictive Maintenance & Fluid Analysis
Utilize Komatsu Oil Wear Analysis (KOWA) to monitor engine and hydraulic health. Regularly check the 3.3 gal (12.5 L) engine oil level and the 12.4 gal (46.9 L) hydraulic fluid capacity. Monitor for particulate contamination in the hydraulic system during the 2000-hour filter replacement interval. Inspecting the cooling system fluid (7.1 gal / 26.9 L) for degradation prevents overheating of the turbocharged SAA4D102E-2 engine.
Corrective & Common Repairs
Address potential hydrostatic transmission pump failures or hydraulic control valve malfunctions if movement becomes erratic. For track issues, inspect the 41 shoes per side for uneven wear and verify the 65 in (1s65.1 cm) track pitch remains within spec. If the machine fails to move forward or reverse, prioritize inspecting the transmission pump and hydraulic valves. Ensure all electrical components, including the back-up alarm, are functional.
Overhaul & Rebuild Points
Major service milestones include the 2000-hour engine valve clearance adjustment and turbocharger inspection. During undercarriage rebuilds, focus on the 6 track rollers per side and the 24 in (61 cm) shoe size components. The final drive requires a full oil change every 1000 hours; during overhaul, inspect the 0.9 gal (3.4 L) capacity housing for seal integrity. Rebuilding should include checking the vibration damper and alternator.
Seasonal & Environment Servicing
For cold weather operation, utilize the electrical intake air heater and follow specific cold-start procedures to prevent engine strain. During off-season storage, perform long-term storage protocols including cleaning the machine and protecting exposed surfaces. In dusty environments, increase frequency of air cleaner element inspections and radiator fin cleaning. Ensure the cab's air conditioning system is serviced to maintain operator visibility and comfort.
D37PX-21(S/N 5001-5499-UP (For North America)) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 07281-00197 | Clamp,(With Pre-Fuel Filter) | Fuel system service | Check fitment → |
| 6732-71-6111 | Filter, Fuel - Secondary | Fuel system service | Check fitment → |
| 09637-30163 | Plate? Instruction,Air Cleaner (Single Element) | Air intake service | Check fitment → |
| 14X-911-7741 | Filter,Air | Air intake service | Check fitment → |
| 17M-911-3530 | Element,Air | Air intake service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
D37PX-21(S/N 5001-5499-UP (For North America)) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| CA428 | Water in fuel sensor high error | Contamination of fuel with water from the fuel tank or supply line. | Stop and drain the water separator immediately to prevent injector damage. |
| E15 | Engine sensor malfunction (temperature, fuel pressure, oil pressure) | Faulty engine sensors or electrical circuit failure within the engine management system. | Inspect engine sensors and wiring for damage or loose connections. |
| E03 | Parking brake system fault | Electrical or mechanical failure in the parking brake circuit. | Inspect parking brake solenoid and mechanical engagement components. |
| E10 | Engine controller power failure | Loss of voltage to the engine management system or internal controller malfunction. | Check battery voltage, alternator output, and controller power supply fuses/relays. |
| CA234 | Engine Overspeed | Excessive engine RPM exceeding safe operating limits. | Check fuel delivery system and governor/controller settings for uncontrolled acceleration. |
| CA441 | Battery Voltage Low Error | Low charge from alternator or depleted battery capacity. | Test battery state of charge and inspect alternator output voltage. |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
D37PX-21(S/N 5001-5499-UP (For North America)) attachments & work tools
Blades
Available configurations include angle blades and U-blades. Standard blade specifications for this series feature a 12795 in (3,25 m) width and a 2.8 in (7 cm) height with a 25 degree angle in both directions.
Rippers
Ripper attachments are available for this machine. Specific single-shank or multi-shank weight configurations require verification with your dealer.
Drawbars/counterweights
The machine features a drawbar swing component. Specific counterweight weights for this serial range are not explicitly detailed in the available factory specifications.
Cab/ROPS guarding options
For machines with cab specification, inspection covers and rear covers are located at the right side of the machine. Silicon oil filled cab damper mounts are used to isolate the operator compartment and suppress vibrations.
Hydraulic arrangement notes
The hydraulic system utilizes a relief valve pressure of 2990 psi (206,2 bar). The system includes assemblies for tilt, angle, and lift cylinders, as well as dozer oil lines.
All D37PX-21(S/N 5001-5499-UP (For North America)) assemblies by section
Every catalogued assembly group for the Komatsu D37PX-21(S/N 5001-5499-UP (For North America)). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Accessory
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Accessory : Cap And Overall
| 09***50 | Overall,(Special Order) | 1 |
| 09***57 | Cap,(Special Order) | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Accessory : Spare Parts
| 09***00 | Box,Spare Parts (Except Usa) | 1 |
| 11***21 | Cartridge,Hydraulic Oil Filter (D31s) | 1 |
| 71***11 | Element, Transmission Oil Filter | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Accessory : Tool
| 07***50 | Pump, (Bellows Type) | 1 |
| 07***03 | Cartridge - Grease | 1 |
| 07***17 | Nozzle | 1 |
Cooling System
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Cooling System : Cooling (Cover)
| 01***20 | Bolt,(For Mono Lever Steering) | 15 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 17 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Cooling System : Cooling (Mount)
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 3 |
| 01***40 | Bolt (Op) | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Cooling System : Cooling (Piping)
| 01***20 | Bolt,(For Mono Lever Steering) | 3 |
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 5 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Cooling System : Cooling (Radiator And Oil Cooler)
| 01***20 | Bolt,(For Mono Lever Steering) | 5 |
| 01***30 | Bolt,(With Body Positioner) | 7 |
| 01***00 | Bolt,(For Front Brake Release) | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Cooling System : Reserve Tank
| 01***25 | Bolt,(Rear Attachment Less) | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 1 |
Electrical System
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Electrical System : Back-Up Alarm
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***00 | Bolt,(For Front Brake Release) | 2 |
| 01***12 | Bolt,(See Fig. K0210-16a0) | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Electrical System : Back-Up Buzzer
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***20 | Bolt,(For Mono Lever Steering) | 3 |
| 01***12 | Bolt,(See Fig. K0210-16a0) | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Electrical System : Battery
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 8 |
| 01***32 | Washer,(With Auto Emergency Steering) | 6 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Electrical System : Battery (Large Capacity Type)
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 8 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 08***00 | Terminal? (+),(10l) (Not Shown) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Electrical System : Battery Wiring
| 01***30 | Bolt - M8 X 30lg | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Electrical System : Electrical System (Engine Wiring)
| 01***16 | Bolt - Box Mounting | 2 |
| 01***16 | Bolt - Seat And Tether Belt Mounting | 3 |
| 01***20 | Bolt,(For Mono Lever Steering) | 6 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Electrical System : Electrical System (Horn And Floor Wiring Clip)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 5 |
| 01***20 | Bolt,(For Mono Lever Steering) | 6 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Electrical System : Electrical System (Vehicle Wiring)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 6 |
| 01***20 | Bolt,(For Mono Lever Steering) | 17 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Electrical System : Vehicel Lamp
| 11***72 | Lamp | 3 |
| 42***30 | Bulb? 70w,24v 70w | 3 |
Engine Related Parts
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Engine Related Parts : After Cooler (Air To Air)
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 1 |
| 01***60 | Bolt,For Weight Adjusting Bolt | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Engine Related Parts : Air Cleaner
| 01***16 | Bolt - Box Mounting | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***23 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Engine Related Parts : Air Cleaner (With Pre-Cleaner)
| 01***16 | Bolt - Box Mounting | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***23 | Washer,(With Auto Emergency Steering) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Engine Related Parts : Air Conditioner (Compressor)
| 01***25 | Bolt,(Rear Attachment Less) | 1 |
| 01***90 | Bolt,With Cover | 3 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 9 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Engine Related Parts : Compressor
| 20***10 | Air Compressor A. (Kit) | 1 |
| ND***70 | Clamp, Tapping | 1 |
| ND***40 | Compressor Assembly | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Engine Related Parts : Corrosion Resistor
| 01***35 | Bolt,(F4320-52a0 -5 ) | 6 |
| 01***32 | Washer,(With Auto Emergency Steering) | 6 |
| 07***12 | Gasket,(Without Air Compressor Type) (K1) | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Engine Related Parts : Damper
| 01***30 | Bolt,(With Body Positioner) | 12 |
| 01***32 | Washer,(With Auto Emergency Steering) | 12 |
| 07***11 | Plug,(For Shipping) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Engine Related Parts : Engine Mounting Parts
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Engine Related Parts : Engine Related Parts (Except Japan)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,(With Body Positioner) | 6 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Engine Related Parts : Fuel Lift Pump
| 67***10 | Pump,Suction | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Engine Related Parts : Heater (Piping)
| 01***20 | Bolt,(For Mono Lever Steering) | 5 |
| 01***32 | Washer,(With Auto Emergency Steering) | 5 |
| 04***11 | Clamp, Vinyl | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Engine Related Parts : Heater (Plug)
| 10***20 | Hose | 1 |
| 11***40 | Plug | 1 |
| 11***60 | Clip | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Engine Related Parts : Heater Switch
| 60***70 | Switch,Air Intake Heater | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Engine Related Parts : Muffler
| 01***25 | Bolt | 4 |
| 01***12 | Bolt,(With Speedometer) | 1 |
| 01***16 | Bolt, Mount Solenoid Valve | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Engine Related Parts : Pre-Cleaner
| 60***30 | Body | 1 |
| 60***30 | Pre-Cleaner Ass'Y | 1 |
| 61***90 | Trap,Dust | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Engine Related Parts : Spare Parts
| 07***16 | Gasket,(For Pc750-6) (See Fig.A2110) | 2 |
| 67***11 | Gasket,Air Intake Heater | 1 |
| 67***81 | Gasket, Valve Cover | 4 |
Fuel Tank And Related Parts
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Fuel Tank And Related Parts : Fuel Line
| 01***20 | Bolt,(For Mono Lever Steering) | 8 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 9 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Fuel Tank And Related Parts : Fuel Line (With Fuel Pump)
| 01***30 | Screw | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 8 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Fuel Tank And Related Parts : Fuel Tank
| 01***20 | Bolt,(For Mono Lever Steering) | 1 |
| 01***12 | Screw | 5 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Fuel Tank And Related Parts : Water Separator
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***45 | Bolt,(For 60ton Dump Body) | 4 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Fuel Tank And Related Parts : Water Separator (With Fuel Pump)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***45 | Bolt,(For 60ton Dump Body) | 4 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 4 |
Guard
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Guard : Engine Hood (With Precleaner)(#5001-)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***45 | Bolt, Mounting Cranking Motor | 4 |
| 01***20 | Bolt,Sems | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Guard : Engine Hood(#5001-)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***45 | Bolt, Mounting Cranking Motor | 4 |
| 01***20 | Bolt,Sems | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Guard : Engine Side Cover (Lower)
| 01***16 | Bolt - Box Mounting | 8 |
| 01***20 | Bolt,(Without Air Con. Or Heater) | 8 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Guard : Engine Side Cover (Upper)
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***45 | Bolt,(With Water Separator Type) | 16 |
| 01***12 | Washer,(With Body Positioner) | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Guard : Engne Hood (With Precleaner And Rops Sweep)(#5001-)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***45 | Bolt, Mounting Cranking Motor | 4 |
| 01***20 | Bolt,Sems | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Guard : Floor Cover
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***16 | Bolt | 6 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Guard : Floor Cover (For Air Condtioner)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 11***60 | Plate | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Guard : Front Hook
| 01***40 | Bolt,(For Slag Handling) (For Usa) | 6 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 6 |
| 11***10 | Hook | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Guard : Radiator Guard (Grid Mask) (For Rops Sweep)
| 01***30 | Bolt,(Not Used When Towing Winch) | 2 |
| 01***35 | Bolt,(With Rops) | 10 |
| 01***25 | Bolt,(Without Gps Antenna Bracket) | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Guard : Radiator Guard (Perforated Mask) (For Rops Sweep)
| 01***30 | Bolt,(Not Used When Towing Winch) | 2 |
| 01***35 | Bolt,(With Rops) | 10 |
| 01***25 | Bolt,(Without Gps Antenna Bracket) | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Guard : Radiator Mask (Grid) (For Rops Sweep)
| 01***40 | Bolt,(For Slag Handling) (For Usa) | 4 |
| 01***25 | Bolt | 4 |
| 01***25 | Bolt,(Without Gps Antenna Bracket) | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Guard : Radiator Mask (Perforated Mask) (For Rops Sweep)
| 01***55 | Bolt,(Not Used For Chip Dozer) | 4 |
| 01***25 | Bolt,(Without Gps Antenna Bracket) | 4 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Guard : Rear Cover
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 6 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 6 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 12 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Guard : Rear Cover (For Air Condtioner)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 4 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 5 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Guard : Rear Guard (Battery Cover)
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 5 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Guard : Rear Guard (Fender)
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 3 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 5 |
| 01***40 | Bolt,(For Slag Handling) (For Usa) | 24 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Guard : Rear Guard (Front Bracket)
| 01***55 | Bolt,(Not Used For Chip Dozer) | 6 |
| 01***65 | Capscrew - M16 X 2.00 X 90 | 2 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 8 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Guard : Rops Mount
| 01***40 | Bolt,(For Slag Handling) (For Usa) | 24 |
| 01***45 | Bolt,(For L=529mm Pin) | 4 |
| 01***19 | Nut - M24 | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Guard : Under Guard
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 1 |
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 10 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 5 |
Hydraulic System
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Hydraulic System : Angle Cylinder Line
| 01***20 | Bolt,(For Mono Lever Steering) | 3 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***40 | Bolt (Op) | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Hydraulic System : Angle Cylinder Line (Bracket)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 6 |
| 01***20 | Bolt,(For Mono Lever Steering) | 16 |
| 01***07 | Nut,(With Body Positioner) | 12 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Hydraulic System : Dozer Oil Line (For Pat)(#5115-5499)
| 01***20 | Bolt,(For Mono Lever Steering) | 5 |
| 01***32 | Washer,(With Auto Emergency Steering) | 5 |
| 07***75 | Fitting,Grease (Without Lub. Piping) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Hydraulic System : Drain Line
| 01***16 | Bolt - Seat And Tether Belt Mounting | 1 |
| 01***75 | Bolt - Tube Mounting | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Hydraulic System : Hydraulic Pump
| 01***40 | Screw, Hex Socket | 4 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 8 |
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 6 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Hydraulic System : Hydraulic Pump Line (Delivery)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***65 | Bolt - Return Line And Suction Linehose Clamps | 2 |
| 01***09 | Nut,(For Japan) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Hydraulic System : Hydraulic Pump Line (Suction)
| 01***20 | Bolt,(For Mono Lever Steering) | 5 |
| 01***30 | Bolt,(With Body Positioner) | 1 |
| 01***09 | Nut,(For Japan) | 6 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Hydraulic System : Hydraulic Tank
| 01***16 | Bolt - Seat And Tether Belt Mounting | 4 |
| 01***40 | Bolt (Op) | 4 |
| 01***16 | Screw | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Hydraulic System : Hydraulic Tank (Mount And Filter)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***40 | Bolt,(For Slag Handling) (For Usa) | 4 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 3 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Hydraulic System : Lift Cylinder Line (Hose)
| 01***20 | Bolt,(For Mono Lever Steering) | 10 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
| 01***65 | Bolt - Return Line And Suction Linehose Clamps | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Hydraulic System : Main Valve (Mount And Elbow)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***65 | Bolt,(Used With Pin Puller) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Hydraulic System : Oil Cooler Line
| 01***20 | Bolt,(For Mono Lever Steering) | 7 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***09 | Nut,(For Japan) | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Hydraulic System : Ppc Line (Branch Hose)
| 02***03 | Hose | 1 |
| 02***03 | Hose | 2 |
| 11***80 | Hose | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Hydraulic System : Ppc Line (Charge Filter)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Bolt,(With Body Positioner) | 4 |
| 01***60 | Bolt,(F4320-52a0 -5- ) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Hydraulic System : Ppc Line (Elbow)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
| 02***15 | Union | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Hydraulic System : Ppc Line (Hose)
| 01***25 | Capscrew | 1 |
| 01***20 | Bolt,(For Mono Lever Steering) | 5 |
| 01***23 | Washer,(With Auto Emergency Steering) | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Hydraulic System : Ppc Line (Solenoid Valve)
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Hydraulic System : Ppc Line (Toe Valve)
| 01***09 | Nut,(For Japan) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 04***16 | Pin (Itl) | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Hydraulic System : Ppc Line (Valve)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***50 | Bolt,(Spark Arrester Spec.) | 1 |
| 01***60 | Bolt,(F4320-52a0 -5- ) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Hydraulic System : Tilt Cylinder Line
| 02***A7 | Hose | 1 |
| 02***08 | O-Ring (Kit) | 2 |
| 02***09 | O-Ring,(F4350-61a0 -41 ) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Hydraulic System : Travel Line
| 01***20 | Bolt,(For Mono Lever Steering) | 6 |
| 01***75 | Bolt (M10-1.50x75) | 4 |
| 01***85 | Bolt, Divider Valve Mounting | 4 |
Main Frame And Related Parts
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Main Frame And Related Parts : Main Frame
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 2 |
Marks And Plates
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Marks And Plates : Center Of Gravity Mark
| 11***10 | Table,Slinging Position | 1 |
| 21***50 | Plate? Mark,Location Of Center Of Gravity | 4 |
| 21***60 | Plate? Mark,Location Of Center Of Gravity | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Marks And Plates : Marks And Plates (English)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 09***63 | Plate? Instruction,Air Cleaner (Single Element) | 1 |
| 09***01 | Plate? Safety,Warning Before Ope.And Mainte | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Marks And Plates : Rops Plates (English)
| 04***08 | Rivet | 4 |
| 09***01 | Plate? Name,(Limited Supply) (Usa? Canada) | 1 |
Miscellaneous
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Miscellaneous : Vandalism Protection
| 09***00 | Lock,(With Vandalism Protection) | 1 |
Operator'S Compartment And Control System
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Air Conditioner (Air Hose)
| 01***25 | Bolt,(Rear Attachment Less) | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Air Conditioner (Capacitor)
| 11***31 | Capacitor | 1 |
| 20***50 | Resistor, Blower | 1 |
| 41***80 | Bolt,Washer | 5 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Air Conditioner (Compressor)
| 09***07 | Hose,Defroster | 1 |
| 11***12 | Air Conditioner Unit | 2 |
| 11***10 | Cover,Dust | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Air Conditioner (Condenser)
| 01***20 | Bolt,(Without Air Con. Or Heater) | 4 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 12 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Air Conditioner (Cooling)
| 19***40 | Clamp | 1 |
| 20***00 | Packing | 1 |
| ND***61 | Screw,Tapping | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Air Conditioner (Duct)
| 01***16 | Bolt - Box Mounting | 4 |
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***20 | Screw | 5 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Air Conditioner (Filter)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 8 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 4 |
| 01***20 | Bolt,(Without Air Con.) | 6 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Air Conditioner (Heater) (1/4)
| 11***00 | Heater Ass'Y | 1 |
| TW***20 | Heater Core | 1 |
| TW***80 | Case | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Air Conditioner (Heater) (2/4)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***32 | Washer,(With Auto Emergency Steering) | 1 |
| 08***10 | Bracket, Bucket Position Sensor | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Air Conditioner (Heater) (3/4)
| 11***00 | Heater Ass'Y | 1 |
| TW***70 | Filter | 1 |
| TW***03 | Seal | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Air Conditioner (Heater) (4/4)
| 11***00 | Heater Ass'Y | 1 |
| TW***10 | Duct | 1 |
| TW***01 | Seal | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Air Conditioner (Unit)
| 01***12 | Bolt - Front Cover Mounting | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 3 |
| 01***35 | Bolt | 6 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Arm Rest
| 01***32 | Plain Washer | 4 |
| 07***30 | Bolt,(For Tree Pusher) | 4 |
| 11***12 | Arm Rest,L.H | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Center Floor (Brake Pedal 1/2)
| 01***30 | Bolt,(For France Noise Suppression) | 1 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***30 | Bolt,(With Body Positioner) | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Center Floor (Brake Pedal 2/2)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***30 | Bolt - M8 X 30lg | 1 |
| 01***22 | Capscrew | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Center Floor (Cover Mount)
| 01***30 | Bolt,(With Body Positioner) | 2 |
| 01***30 | Bolt, Mounting - Front Hand Rails | 23 |
| 01***06 | Nut | 8 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Center Floor (Deccel Cable)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
| 01***10 | Washer,(For 35a Alternator) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Center Floor (Deccel Cable) (Cab)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***30 | Bolt, Mounting - Front Hand Rails | 8 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Center Floor (Deccel Pedal)
| 01***30 | Bolt - M8 X 30lg | 2 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 4 |
| 01***30 | Bolt,(With Back-Up Alarm) (Op) | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Center Floor (Piping)
| 01***25 | Bolt,(Rear Attachment Less) | 1 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Cup Holder (With Cab)
| 01***25 | Screw | 2 |
| 01***23 | Washer,(Without Air Con.) | 2 |
| 11***90 | Bracket | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Cup Holder (Without Cab)
| 01***20 | Screw | 2 |
| 01***30 | Screw | 2 |
| 01***23 | Washer,(Without Air Con.) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Fire Extinguisher (English) (With Cab)
| 01***20 | Bolt,(Without Air Con. Or Heater) | 6 |
| 01***25 | Screw | 4 |
| 01***19 | Washer,Spring (With Extinguisher) (D31p) | 6 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Fire Extinguisher (English) (Without Cab)
| 01***20 | Bolt,(Without Air Con. Or Heater) | 4 |
| 01***19 | Washer,Spring (With Extinguisher) (D31p) | 4 |
| 01***23 | Washer,(With Auto Emergency Steering) | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Floor Frame
| 01***18 | Bolt | 2 |
| 01***25 | Bolt,(Rear Attachment Less) | 4 |
| 01***30 | Bolt - M8 X 30lg | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Floor Frame (Blade Control)
| 01***10 | Bolt | 3 |
| 01***16 | Washer,(With Water Separator) | 1 |
| 07***30 | Bolt,(For Tree Pusher) | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Floor Frame (Blade Lock Lever)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***25 | Bolt,(Rear Attachment Less) | 7 |
| 01***30 | Bolt - M8 X 30lg | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Floor Frame (Cover)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 1 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 1 |
| 01***20 | Screw | 14 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Floor Frame (Horn Switch)
| 08***00 | Horn Switch,Ether Starting | 1 |
| 13***00 | Switch Ass'Y | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Floor Frame (Hst P.P.C Piping)(#5001-5090)
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 02***A8 | Hose? 850mm,Green | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Floor Frame (Hst P.P.C Piping)(#5091-5499)
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***32 | Washer,(With Auto Emergency Steering) | 4 |
| 02***08 | Hose,Green | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Floor Frame (Mount) (Cab)
| 01***85 | Bolt,(Used With Pin Puller) | 11 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 11 |
| 09***12 | Cap,(With Auto Emergency Steering) | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Floor Frame (Mount) (Canopy)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***16 | Bolt | 5 |
| 01***30 | Bolt | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Floor Frame (P.P.C Drain)
| 01***35 | Bolt,(For Fix Position) | 2 |
| 01***40 | Screw, Hex Socket | 2 |
| 01***45 | Screw | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Floor Frame (P.P.C Valve)
| 01***25 | Bolt,(Rear Attachment Less) | 8 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 8 |
| 11***41 | Plate | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Floor Frame (Steering Electrical)
| 01***16 | Bolt - Box Mounting | 2 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 5 |
| 01***30 | Bolt - M8 X 30lg | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Floor Frame (Steering Lock Lever)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 6 |
| 01***35 | Bolt,(For Fix Position) | 2 |
| 01***25 | Bolt | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Floor Frame (Steering Lock Valve)
| 01***20 | Bolt,(Without Air Con. Or Heater) | 1 |
| 01***25 | Bolt,(Rear Attachment Less) | 2 |
| 01***03 | Nut, L. H. Thread | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Floor Frame (Steering P.P.C Valve Lock)
| 01***25 | Bolt,(Rear Attachment Less) | 3 |
| 01***30 | Bolt - M8 X 30lg | 3 |
| 01***05 | Nut,L.H. (For Trimming Dozer) | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Floor Frame (Steering P.P.C Valve)
| 01***20 | Bolt,See Fig. K4010-65a0 | 3 |
| 01***10 | Bolt | 3 |
| 01***16 | Screw | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Floor Frame (Wiring)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 2 |
| 01***20 | Bolt,(For Mono Lever Steering) | 15 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Floor Frame (Work P.P.C Piping)
| 01***20 | Bolt,(For Mono Lever Steering) | 6 |
| 01***32 | Washer,(With Auto Emergency Steering) | 6 |
| 02***10 | Hose? 1000mm,Yellow | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Floor Mat (With Cab)
| 11***33 | Floor Mat | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Floor Mat (Without Cab)
| 11***14 | Floor Mat | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Foot Rest
| 01***20 | Bolt | 4 |
| 01***32 | Washer,(Without Gps Antenna Bracket) | 4 |
| 09***12 | Cap,(With Auto Emergency Steering) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Fuel Control (1/2)
| 01***25 | Bolt,(Rear Attachment Less) | 1 |
| 01***30 | Bolt - M8 X 30lg | 2 |
| 01***30 | Bolt,Stopper | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Fuel Control (2/2)
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 3 |
| 01***30 | Bolt - M8 X 30lg | 2 |
| 01***45 | Bolt,(With Water Separator Type) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Heater
| 01***20 | Bolt,(For Mono Lever Steering) | 8 |
| 01***20 | Bolt,(Without Air Con.) | 6 |
| 01***32 | Washer,(With Auto Emergency Steering) | 8 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Lunch Box Bracket (With Cab)
| 01***25 | Screw | 4 |
| 01***23 | Washer,(Without Air Con.) | 4 |
| 11***40 | Bracket | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Lunch Box Bracket (Without Cab)
| 01***30 | Bolt,(Not Used When Towing Winch) | 2 |
| 01***30 | Screw | 2 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Operator'S Seat (Reclining Type) (Fabric Seat)
| 01***30 | Bolt,(Not Used When Towing Winch) | 4 |
| 01***20 | Bolt | 4 |
| 01***16 | Washer,(For 35a Alternator) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Operator'S Seat (Reclining Type) (Fabric Seat) (With Head Rest)
| 01***30 | Bolt,(Not Used When Towing Winch) | 4 |
| 01***20 | Bolt | 4 |
| 01***16 | Washer,(For 35a Alternator) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Operator'S Seat (Reclining Type) (Leather Seat)
| 01***30 | Bolt,(Not Used When Towing Winch) | 4 |
| 01***20 | Bolt | 4 |
| 01***16 | Washer,(For 35a Alternator) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Operator'S Seat (Reclining Type) (Leather Seat) (With Head Rest)
| 01***30 | Bolt,(Not Used When Towing Winch) | 4 |
| 01***20 | Bolt | 4 |
| 01***16 | Washer,(For 35a Alternator) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Panel (For Cab)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***20 | Bolt | 2 |
| 01***40 | Bolt | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Panel (For Canopy)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***20 | Bolt | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Panel (Vandalism Protection)
| 01***20 | Bolt,(For Mono Lever Steering) | 2 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***25 | Bolt,(Without Gps Antenna Bracket) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Rear View Mirror
| 01***20 | Bolt,(Without Air Con.) | 4 |
| 01***23 | Washer,(Without Air Con.) | 4 |
| 11***91 | Bracket | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Rops Cab (Air Conditioner Control)
| 01***14 | Screw | 3 |
| 01***16 | Screw | 8 |
| 01***25 | Bolt | 6 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Rops Cab (Body) (For U.S.A.)(#5001-5088)
| 09***30 | Plate? Mark,Mark? Galeo | 2 |
| 11***21 | Rops Cab Ass'Y,Except Japan | 1 |
| 11***22 | Rops Cab Ass'Y,Except Japan | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Rops Cab (Body) (For U.S.A.)(#5089-5499)
| 01***20 | Screw | 4 |
| 01***16 | Screw | 4 |
| 01***23 | Washer | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Rops Cab (Body)(#1001-5088)
| 09***30 | Plate? Mark,Mark? Galeo | 2 |
| 11***12 | Rops Cab Ass'Y | 1 |
| 11***13 | Rops Cab Ass'Y | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Rops Cab (Body)(#5089-5499)
| 01***20 | Screw | 4 |
| 01***16 | Screw | 4 |
| 01***23 | Washer | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Rops Cab (Door)(#5001-5088)
| 01***20 | Screw | 10 |
| 01***16 | Screw | 16 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 36 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Rops Cab (Door)(#5089-5499)
| 01***20 | Screw | 10 |
| 01***16 | Screw | 16 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 24 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Rops Cab (Duct)
| 01***12 | Bolt - M8 - 1.25 X 12 | 6 |
| 01***25 | Bolt,(Rear Attachment Less) | 2 |
| 01***16 | Screw | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Rops Cab (Electrical) (For U.S.A.)(#5001-5088)
| 01***20 | Bolt,Sems | 5 |
| 01***25 | Bolt,(Without Gps Antenna Bracket) | 6 |
| 01***12 | Screw | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Rops Cab (Electrical) (For U.S.A.)(#5089-5499)
| 01***25 | Bolt,(Without Gps Antenna Bracket) | 6 |
| 01***12 | Screw | 2 |
| 01***14 | Screw | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Rops Cab (Electrical)(#5001-5088)
| 01***20 | Bolt,Sems | 5 |
| 01***25 | Bolt,(Without Gps Antenna Bracket) | 6 |
| 01***12 | Screw | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Rops Cab (Electrical)(#5089-5499)
| 01***25 | Bolt,(Without Gps Antenna Bracket) | 6 |
| 01***12 | Screw | 2 |
| 01***14 | Screw | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Rops Cab (Mount)
| 01***85 | Bolt,(Used With Pin Puller) | 11 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 11 |
| 11***12 | Rubber | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Rops Cab (Nozzle)
| 01***12 | Screw | 4 |
| 08***07 | Conduit | 1 |
| 08***16 | Conduit | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Rops Cab (Open Lock)
| 01***20 | Bolt,Sems | 12 |
| 01***25 | Bolt | 8 |
| 01***05 | Nut,(For Air Conditioner Less), Nut | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Rops Cab (Radio Less) (For U.S.A.)(#5001-5088)
| 01***25 | Screw | 8 |
| 01***14 | Screw | 2 |
| 01***16 | Screw | 8 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Rops Cab (Radio Less) (For U.S.A.)(#5089-5499)
| 01***14 | Screw | 2 |
| 01***25 | Screw, | 8 |
| 01***16 | Screw | 8 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Rops Cab (Radio)(For U.S.A.)(#5001-5088)
| 01***25 | Screw | 8 |
| 01***14 | Screw | 2 |
| 01***10 | Screw | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Rops Cab (Radio)(For U.S.A.)(#5089-5499)
| 01***14 | Screw | 2 |
| 01***10 | Screw | 4 |
| 01***25 | Screw, | 8 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Rops Cab (Roof Lining)(#5001-5088)
| 01***12 | Screw | 2 |
| 01***25 | Screw | 4 |
| 01***35 | Screw | 8 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Rops Cab (Roof Lining)(#5089-5499)
| 01***12 | Screw | 2 |
| 01***25 | Screw | 4 |
| 01***14 | Bolt - Plate Mounting | 6 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Rops Cab (Washer Tank)
| 01***16 | Bolt - Box Mounting | 2 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***20 | Screw | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Rops Canopy (For Except Japan)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 6 |
| 01***10 | Screw | 4 |
| 01***12 | Screw | 6 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Sash Ass'Y(#5001-5088)
| 11***01 | Sash Ass'Y,L.H | 1 |
| 11***90 | Decal,L.H | 1 |
| 11***01 | Sash Ass'Y,R.H | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Sash Ass'Y(#5089-5499)
| 11***02 | Sash Ass'Y,L.H | 1 |
| 11***02 | Sash Ass'Y,R.H | 1 |
| BJ***28 | Seal | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Seat Belt
| 02***44 | Bolt | 2 |
| 09***01 | Bolt,(For Shipping) | 4 |
| 09***02 | Washer,(For Shipping) | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Side Floor (For Cab)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 6 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 6 |
| 11***83 | Cover,L.H | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Operator'S Compartment And Control System : Side Floor (For Canopy)
| 01***16 | Bolt - Seat And Tether Belt Mounting | 4 |
| 01***30 | Bolt,(Not Used When Towing Winch) | 3 |
| 01***30 | Bolt, Mounting - Front Hand Rails | 6 |
Power Train And Final Drive
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Power Train And Final Drive : Final Drive (Carrier)
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 12 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 12 |
| 07***34 | O-Ring,(For 2-Actuater Attachment) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Power Train And Final Drive : Final Drive (Hub)
| 01***50 | Capscrew | 18 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 2 |
| 01***15 | Bolt | 3 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Power Train And Final Drive : Final Drive (Mount)
| 01***60 | Capscrew | 48 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 48 |
| (1***1) | Final Drive Ass'Y | 1 |
Saa4d102e-2c-4 S/N 26277757-Up
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : After Cooler(#26277757-)
| 61***90 | Clamp, Hose | 7 |
| 67***10 | Hose | 1 |
| 67***20 | Tube | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Air Cleaner(#26277757-)
| 08***00 | Indicator, Dust | 1 |
| 12***10 | Band | 2 |
| 12***20 | Pin | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Air Connector(#26277757-)
| 07***08 | Plug,(Without Auto Priming System) | 1 |
| 67***11 | Gasket,Air Intake Heater | 1 |
| 67***10 | Bolt (M8-1.25x80) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Air Intake Cover(#26277757-)
| 67***10 | Plug, Pipe (1/2-14 Npt) | 2 |
| 67***60 | Bolt, Mounting (M8x1.25x25) | 6 |
| 67***30 | Cover, Intake Manifold | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Air Intake Heater(#26277757-)
| 67***11 | Gasket,Air Intake Heater | 1 |
| 67***20 | Heater, Engine | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Alternator (35a) (Shield Alternator) (Inner Parts)(#26277757-)
| 60***11 | Alternator A. (35a) | 1 |
| KD***70 | Bushing,Insulate | 1 |
| KD***50 | Regulator Ass'Y | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Alternator (35a) (Shield Alternator)(#26277757-)
| (6***1) | Alternator A. (35a),(See Fig.A601p-02a7z) | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Alternator Support (For 35a Alternator)(#26277757-)
| 01***30 | Bolt,(For Trimming Dozer) | 1 |
| 01***40 | Screw | 1 |
| 01***10 | Nut,(Without Air Conditioner) | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Belt Tensioner (For 35a Alternator)(#26288963-)
| 67***41 | Tensioner, Alternator Belt | 1 |
| 67***20 | Bolt (M10x1.50x70) | 1 |
| 67***20 | Capscrew, Flat Head (M8-1.25x25) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Boost Tube(#26277757-)
| 01***06 | Nut | 1 |
| 04***08 | Clip | 2 |
| 07***12 | Gasket,Injection Pump Piping | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Breather Hose(#26277757-)
| 07***20 | Clamp, Spring Hose | 1 |
| 07***48 | Hose | 1 |
| 67***40 | Clip | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Camfollower Cover(#26277757-)
| 01***16 | Bolt, Mounting Transmission Control Switch | 4 |
| 01***10 | Washer,(For 35a Alternator) | 4 |
| 67***50 | Washer, Plain (3/8 Inch) | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Camshaft(#26277757-)
| 67***11 | Camshaft | 1 |
| 67***20 | Support, Camshaft Thrust | 1 |
| 67***31 | Gear, Camshaft | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Caution Plate(#26277757-)
| 67***10 | Data Plate | 1 |
| 67***11 | Data Plate | 1 |
| 67***12 | Data Plate | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Cooling Fan(#26277757-)
| 01***50 | Bolt,(See Fig.A4010-C3w6) | 4 |
| 60***80 | Fan,Cooling | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Corrosion Resistor (Without Cirrosion Resistor)(#26277757-)
| 07***12 | Gasket,(Without Air Compressor Type) (K1) | 2 |
| 07***14 | Screw, Banjo Connector (M10) | 1 |
| 07***59 | Clamp,See Fig. K4010-05a0 | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Corrosion Resistor(#26277757-) : Unit_01_of_02
| 01***16 | Bolt, Mount Solenoid Valve | 1 |
| 07***12 | Gasket,(Without Air Compressor Type) (K1) | 4 |
| 07***14 | Screw, Banjo Connector (M10) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Corrosion Resistor(#26277757-) : Unit_02_of_02
| 07***14 | Screw, Banjo Connector (M10) | 2 |
| 07***50 | Hose, Right | 2 |
| 07***97 | Clamp,(With Pre-Fuel Filter) | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Crankshaft(#26277757-)
| 67***20 | Crankshaft Ass'Y | 1 |
| 67***50 | Gear, Crankshaft | 1 |
| 67***11 | Gear, Crankshaft | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Cylinder Block Blind Cover And Piping(#26277757-)
| 07***12 | Gasket,Injection Pump Piping | 2 |
| 67***60 | Bolt, Mounting (M8-1.25x25) | 1 |
| 67***20 | Bolt, Flange (M8-1.25x20) | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Cylinder Block Gasket Kit(#26288963-)
| 07***12 | Gasket,(Without Air Compressor Type) (K2) | 7 |
| 07***12 | Gasket,(Without Air Compressor Type) (K1) | 2 |
| 07***16 | Gasket,(For Pc750-6) (See Fig.A2110) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Cylinder Block(#26277757-)
| 62***10 | Screw | 2 |
| 62***10 | Seal, O-Ring (M10-1.00) | 4 |
| 67***30 | Block Assembly, Cylinder | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Cylinder Head Gasket Kit(#26288963-)
| 07***12 | Gasket,(Without Air Compressor Type) (K2) | 2 |
| 07***12 | Gasket,Injection Pump Piping | 6 |
| 07***12 | Gasket,(Without Air Compressor Type) (K1) | 9 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Cylinder Head(#26277757-)
| 67***10 | Retainer, Exhaust Valve Spring | 8 |
| 67***11 | Retainer, Valve Spring | 8 |
| 67***10 | Head Ass'Y | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Damper
| 67***20 | Bolt (M12x1.25x36) | 4 |
| 67***20 | Damper, Rubber Vibration | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Dust Seal(#26277757-)
| 67***10 | Shield, Dust | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Exhaust Manifold Gasket And Bolt(#26277757-)
| 67***50 | Bolt | 8 |
| 67***20 | Gasket, Exhaust Manifold | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Exhaust Manifold(#26277757-)
| 62***20 | Screw | 1 |
| 67***10 | Manifold | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Fan Drive Pulley(#26288963-)
| 01***30 | Bolt,(Water Separator Spec.) | 2 |
| 01***40 | Screw | 2 |
| 06***05 | Bearing,Ball | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Fan Pilot Spacer(#26277757-)
| 01***55 | Bolt, Mount Dryer To Bracket And Frame | 4 |
| 67***10 | Spacer | 1 |
| 67***10 | Spacer | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Fan Pulley(#26277757-)
| 67***50 | Pulley, Accessory Drive | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Flywheel Housing(#26277757-)
| 61***90 | Spacer | 1 |
| 63***30 | Plate | 1 |
| 67***40 | Cover, Rear | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Flywheel(#26277757-)
| 67***20 | Washer, Plain (M12) | 8 |
| 67***30 | Bolt (M12x1.25x32) | 8 |
| 67***80 | Gear, Flywheel Ring | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Front Cover
| 67***40 | Pin, Timing | 1 |
| 67***50 | Ring, Retaining | 1 |
| 67***60 | Screw, Round Head (M5-0.80x17) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Front Gear Train Drive Shaft(#26277757-)
| 01***55 | Bolt,(With Joy Stick Steering) | 2 |
| 67***80 | Gasket, Accessory Drive Cover | 2 |
| 67***30 | Bearing,Roller | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Fuel Filter Piping(#26277757-)
| 07***12 | Gasket,Injection Pump Piping | 2 |
| 61***10 | Clamp,With Thread | 1 |
| 61***20 | Clamp | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Fuel Filter(#26277757-)
| 01***25 | Bolt - Relay Mounting | 2 |
| 67***11 | Filter, Fuel - Secondary | 1 |
| 67***12 | Cartridge,Fuel | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Fuel Injection Pump (Feed Pump) (Inner Parts)(#26288963-)
| DK***20 | Bolt, Joint | 1 |
| DK***60 | Feed Pump Ass'Y | 1 |
| DK***00 | Valve,Check | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Fuel Injection Pump (Governor) (1/2) (Inner Parts)(#26288963-)
| DK***00 | Spring | 1 |
| DK***00 | Shim? 2.00mm,(High Altitude Spec.) | 0 |
| DK***00 | Connector | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Fuel Injection Pump (Governor) (2/2) (Inner Parts)(#26288963-)
| DK***20 | Lever | 1 |
| DK***00 | Gasket | 1 |
| DK***40 | Gasket,Air Compressor | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Fuel Injection Pump (Pump) (1/2) (Inner Parts)(#26288963-)
| 67***30 | Injection Pump Ass'Y | 1 |
| DK***30 | Bearing | 0 |
| DK***20 | Housing | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Fuel Injection Pump (Pump) (2/2) (Inner Parts)(#26288963-)
| DK***40 | Shim? 0.50mm, Shim, 0.50mm; Was Dk029311-0040 | 0 |
| DK***90 | Shim? 0.25mm, Shim, 0.25mm; Was Dk029311-0590 | 0 |
| DK***00 | Sleeve,Control | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Fuel Injection Pump Mounting(#26277757-)
| 01***14 | Bolt - Fuel Sensor Mounting | 2 |
| 01***11 | Nut (M14-1.50 Thd), Nut; Was 01582-01411 | 1 |
| 07***12 | Gasket,(Without Air Compressor Type) (K2) | 3 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Fuel Injection Pump(#26288963-)
| (6***0) | Injection Pump Ass'Y,(See Fig.A401p-02g8) | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Fuel Inlet And Outlet Joint Cap(#26277757-)
| 67***40 | Cap,(For Shipping) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Fuel Joint(#26277757-)
| 61***50 | Connector, Banjo | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Fuel Lift Pump Mounting(#26277757-)
| 07***12 | Gasket,(Without Air Compressor Type) (K1) | 2 |
| 61***10 | Bolt,Joint (High Altitude Spec.) | 1 |
| 67***10 | Joint | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Fuel Lift Pump(#26277757-)
| 67***10 | Pump,Suction | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Fuel Piping(#26277757-)
| 04***08 | Clip | 1 |
| 61***80 | Spacer | 2 |
| 67***20 | Bolt, Mounting (M8-1.25x16) | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Head Cover(#26277757-)
| 61***10 | Cap, Oil Filler | 1 |
| 67***30 | Bolt (M8x1.25x25) | 3 |
| 67***40 | Bolt (M8-1.25x25) | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Heat Shield(#26277757-) : Unit_01_of_02
| 01***20 | Bolt,(Forwarded Individually Parts) | 4 |
| 01***20 | Bolt, Hose Clamps (Inlet And Return Line Hoses) | 3 |
| 01***35 | Bolt, Mount Bracket To Floor | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Heat Shield(#26277757-) : Unit_02_of_02
| 01***20 | Bolt,(Forwarded Individually Parts) | 4 |
| 01***16 | Bolt - Starting Motor Ground Cable | 2 |
| 62***60 | Distance Piece | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Heater Switch
| 60***70 | Switch,Air Intake Heater | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Heater Valve And Adapter(#26277757-)
| 09***00 | Valve | 1 |
| 67***30 | Adapter | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Injection Nozzle(#26277757-)
| 67***50 | Seal, Rectangular Ring | 1 |
| 67***60 | Gasket,Injector - Spill | 2 |
| 67***10 | Shim 1.00 mm Thick | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Lifting Bracket(#26277757-)
| 01***30 | Bolt, Mounting - Front Hand Rails | 2 |
| 01***32 | Washer,(With Auto Emergency Steering) | 2 |
| 67***70 | Bracket | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Muffler(#26277757-26291398)
| 01***12 | Bolt,(With Speedometer) | 1 |
| 01***16 | Bolt, Mount Solenoid Valve | 1 |
| 01***35 | Bolt,R.H. (For Add. Air Compressor) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Muffler(#26291399-)
| 01***12 | Bolt,(With Speedometer) | 1 |
| 01***16 | Bolt, Mount Solenoid Valve | 1 |
| 01***35 | Bolt,R.H. (For Add. Air Compressor) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Oil Cooler And Oil Filter(#26277757-)
| 67***51 | Valve, Pressure Relief | 1 |
| 67***30 | Plug, Pipe (1/8 Nptf) | 1 |
| 67***20 | O-Ring,Oil Pressure Plug | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Oil Level Gauge(#26277757-)
| 01***16 | Bolt, Mount Solenoid Valve | 1 |
| 01***06 | Nut | 1 |
| 04***08 | Clip | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Oil Pan And Suction Tube(#26277757-)
| 07***16 | Gasket,(For Pc750-6) (See Fig.A2110) | 2 |
| 09***50 | Liquid Gasket, Lg-7, 150g | 0 |
| 62***80 | Plug,Drain | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Oil Pan Bolt(#26277757-)
| 67***10 | Bolt, Mounting (M8-1.25 X 25) | 28 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Oil Pressure Switch(#26277757-)
| 08***05 | Switch,Engine Oil Pressure | 1 |
| 62***10 | Seal, O-Ring (M10-1.00) | 1 |
| 67***70 | Adaptor | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Oil Pump(#26277757-)
| 67***12 | Pump, Lubricating Oil | 1 |
| 67***20 | Bolt (M8x1.25x30) | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Piston
| 67***10 | Pin, Piston | 4 |
| 67***20 | Ring, Retaining | 8 |
| 67***01 | Engine Connecting Rod Assembly | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Repair Parts (1/4) (Cylinder Head)(#26277757-)
| 67***51 | Gasket, Cylinder Head | 1 |
| 67***51 | Gasket, Cylinder Head | 1 |
| 67***10 | Guide, Valve Stem - Intake/Exhaust (Thin Wall) | 8 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Repair Parts (2/4) (Cylinder Block)(#26277757-)
| 67***10 | Bushing, Oversize (No. 1 Bore) | 1 |
| 67***20 | Bushing, Oversize (No. 2-5 Bore) | 1 |
| 67***10 | Sleeve, Salvage - Std Bore | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Repair Parts (3/4) (Crankshaft)(#26277757-)
| 67***00 | Main Metal Ass'Y | 4 |
| 67***00 | Main Metal Ass'Y | 4 |
| 67***00 | Main Metal Ass'Y | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Repair Parts (4/4) (Piston)(#26277757-)
| 67***00 | Bearing, Connecting Rod (1.00mm Oversize) | 8 |
| 67***00 | Bearing, Connecting Rod (0.75mm Oversize) | 8 |
| 67***00 | Bearing, Connecting Rod (0.50mm Oversize) | 8 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Rocker Arm(#26277757-)
| 67***70 | Screw, Slotted Set (3/8-24x1 1/2 Inch) | 2 |
| 67***40 | Bolt | 4 |
| 67***11 | Rod, Push | 8 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Spare Parts(#26277757-)
| 07***16 | Gasket,(For Pc750-6) (See Fig.A2110) | 2 |
| 67***11 | Gasket,Air Intake Heater | 1 |
| 67***81 | Gasket, Valve Cover | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Spare Parts(#26288963-)
| 07***16 | Gasket,(For Pc750-6) (See Fig.A2110) | 2 |
| 67***11 | Gasket,Air Intake Heater | 1 |
| 67***81 | Gasket, Valve Cover | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Starting Motor (4.5kw) (Inner Parts)(#26277757-26291398)
| 60***10 | Starting Motor Ass'Y,(4.5kw) | 1 |
| ND***82 | Yoke Assembly | 1 |
| ND***00 | Washer, Felt | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Starting Motor (4.5kw)(#26277757-26291398)
| (6***0) | Starting Motor Ass'Y,(4.5kw) (See Fig.A621p-02a2) | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Starting Motor (5.5kw)
| (6***0) | Starting Motor Ass'Y,(5.5kw) (See Fig.A621p-02a1) | 1 |
| (6***1) | Starting Motor Ass'Y,(5.5kw) (See Fig.A621p-02a1) | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Starting Motor (5.5kw) (Inner Parts)
| 60***10 | Starting Motor Ass'Y,(See Fig.A621p-02a1) | 1 |
| 60***11 | Starting Motor Ass'Y,(5.5kw) | 1 |
| ND***80 | Holder Ass'Y,Brush | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Starting Motor Mounting (4.5kw)(#26277757-26291398)
| 01***35 | Bolt, Mount Bracket To Floor | 2 |
| 67***11 | Gasket,Starter | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Starting Motor Mounting (5.5kw)
| 01***35 | Bolt, Mount Bracket To Floor | 2 |
| 01***08 | Nut,See Fig. K4010-04a0 | 1 |
| 67***11 | Gasket,Starter | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Stop Solenoid(#26277757-)
| 01***03 | Nut, L. H. Thread | 1 |
| 01***05 | Nut (Welded) | 2 |
| 01***06 | Nut | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Tachometer Drive Cover(#26277757-)
| 67***90 | Cover, Mechanical Tach Drive | 1 |
| 67***20 | Seal, Rectangular Ring | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Tappet(#26277757-)
| 67***12 | Tappet, Valve | 8 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Thermostat Housing(#26277757-)
| 67***40 | Bolt, (M8x1.25x35) | 1 |
| 67***70 | Coupling, Plain Hose | 1 |
| 67***80 | Bolt (M8-1.25x70) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Thermostat(#26274903-26295863)
| 67***71 | Thermostat | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Thermostat(#26295864-)
| 67***71 | Thermostat | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Turbocharger Mounting(#26277757-)
| 01***25 | Stud | 4 |
| 62***50 | Nut | 4 |
| 67***50 | Gasket,Turbocharger Oil Drain | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Turbocharger Oil Piping(#26277757-)
| 67***70 | Washer,Turbocharger Oil Supply | 1 |
| 67***30 | O-Ring,Turbocharger Drain | 2 |
| 67***50 | Gasket,Turbocharger Oil Drain | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Under Plate(#26277757-)
| 67***50 | Plate, Cylinder Block Stiffener | 1 |
| (0***0) | Liquid Gasket, Lg-7, 150g | 0 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Water Connector Plug(#26277757-)
| 67***10 | Plug, Pipe (1/2-14 Npt) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Water Connector(#26277757-)
| 67***20 | Bolt (M10-1.50x75) | 3 |
| 67***30 | Seal,Water Inlet Connection | 1 |
| 67***61 | Connector | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Water Pump(#26277757-)
| 67***01 | Water Pump Ass'Y | 1 |
| 67***02 | Water Pump Ass'Y | 1 |
| 67***01 | Kit, Water Pump | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Saa4d102e-2c-4 S/N 26277757-Up : Water Temperature Sensor(#26277757-)
| 11***81 | Thermo Sensor,Water Temperature | 1 |
| 56***12 | Adapter,Water Temperature Gauge | 1 |
Service Kit And Component Parts
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Angle Cylinder
| 02***09 | O-Ring,(F4350-61a0 -41 ) | 2 |
| 04***20 | Ring, Snap | 4 |
| 07***70 | O-Ring (Kit) | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Automatic Shift Change Valve
| 01***20 | Screw | 1 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 1 |
| 07***09 | O-Ring | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Control Valve (3-Spool) (1/6)
| 01***45 | Screw | 4 |
| 01***23 | Washer,(For Shipping) | 8 |
| 07***07 | O-Ring - (K10) | 3 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Control Valve (3-Spool) (2/6)
| 01***40 | Screw | 8 |
| 01***50 | Screw | 2 |
| 07***23 | O-Ring; Was 07002-10823, O-Ring,(Not Shown) | 3 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Control Valve (3-Spool) (3/6)
| 07***14 | O-Ring,(F4350-61a0a-20 ) | 1 |
| 07***23 | O-Ring,(F4350-66a1 -1c ) | 2 |
| 07***23 | O-Ring,(For 2nd Travel Speed) (Op) | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Control Valve (3-Spool) (4/6)
| 07***07 | O-Ring - (K10) | 1 |
| 07***09 | O-Ring,(For Dual Tilt Dozer) | 1 |
| 07***07 | Ring,Back-Up | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Control Valve (3-Spool) (5/6)
| 70***10 | O-Ring (Kit) | 1 |
| 70***20 | Ring, Back-Up | 1 |
| 70***90 | O-Ring,Suction | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Control Valve (3-Spool) (6/6)
| 02***08 | O-Ring (Kit) | 1 |
| 04***15 | Bolt,Eye | 2 |
| 07***24 | O-Ring | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Hst Pump (1/13)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 07***80 | O-Ring | 1 |
| 07***28 | O-Ring | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Hst Pump (10/13)
| 07***23 | O-Ring,(F3320-65a0 -34 ) | 1 |
| 07***34 | O-Ring,(F2370-57a0 -42 ) | 1 |
| 70***40 | Nut | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Hst Pump (11/13)
| 01***11 | Nut - Mounting | 1 |
| 07***11 | O-Ring | 1 |
| 07***23 | O-Ring,(F3320-65a0 -34 ) | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Hst Pump (12/13)
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
| 07***06 | O-Ring | 1 |
| 07***24 | O-Ring | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Hst Pump (13/13)
| 01***20 | Bolt | 1 |
| 01***40 | Bolt | 1 |
| 07***15 | O-Ring | 3 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Hst Pump (2/13)
| 01***08 | Nut (Op) | 2 |
| 01***45 | Washer,(For Quick Shift) (Mitsubishi) | 2 |
| 04***25 | Ring,Snap | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Hst Pump (3/13)
| 07***09 | O-Ring | 2 |
| (****3) | Plate,Valve | 1 |
| (****0) | Piston Ass'Y | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Hst Pump (4/13)
| 01***30 | Bolt | 8 |
| (****5) | O-Ring | 2 |
| (****0) | Nut | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Hst Pump (5/13)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 07***80 | O-Ring | 1 |
| 07***28 | O-Ring | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Hst Pump (6/13)
| 07***09 | O-Ring | 2 |
| (****0) | Piston Ass'Y | 1 |
| (7***0) | Pump Ass'Y | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Hst Pump (7/13)
| 01***30 | Bolt | 8 |
| 02***10 | Elbow | 2 |
| 02***08 | O-Ring | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Hst Pump (8/13)
| 01***85 | Bolt, Divider Valve Mounting | 4 |
| 01***40 | Bolt | 1 |
| 07***45 | O-Ring | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Hst Pump (9/13)
| 07***23 | O-Ring,(F3320-66a2 -26 ) | 1 |
| 07***34 | O-Ring,(F2370-57a0 -42 ) | 5 |
| 70***50 | Plug | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Hydraulic Pump
| 01***36 | Wahser-Spring, Washer,Spring (Without Towing Winch) | 4 |
| 04***24 | Pin,Dowel (For No.3 Housing) | 4 |
| 04***18 | Ring, Retaining | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Inching Valve
| 01***10 | Bolt | 1 |
| 04***14 | Pin, Dowel | 1 |
| 04***12 | Pin, Spring | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Lift Cylinder
| 02***12 | O-Ring,(F2370-57a0 -49 ) | 2 |
| 07***80 | O-Ring (Kit) | 1 |
| 07***85 | O-Ring,(For Snow Removing) | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Ppc Valve (1/4)
| 70***91 | Pilot Valve | 1 |
| 70***92 | Pilot Valve | 1 |
| 70***40 | Shim - 0.012 In. (0.30 mm) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Ppc Valve (2/4)
| 07***20 | O-Ring,(0202-007) | 1 |
| 70***40 | Shim - 0.012 In. (0.30 mm) | 2 |
| 70***70 | Gasket | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Ppc Valve (3/4)
| 07***20 | O-Ring,(0202-007) | 2 |
| 70***40 | Shim - 0.012 In. (0.30 mm) | 2 |
| 70***70 | Gasket | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Ppc Valve (4/4)
| 01***10 | Bolt | 2 |
| 07***70 | O-Ring (Kit) | 1 |
| 70***80 | O-Ring | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Ppc Valve (For Steering)(#5001-5090)
| 01***12 | Bolt | 4 |
| 01***40 | Screw | 2 |
| 70***82 | Pilot Valve | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Ppc Valve (For Steering)(#5091-5499)
| 01***12 | Bolt | 4 |
| 01***80 | Bolt | 2 |
| 07***10 | O-Ring | 5 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Rubber Antenna
| 36***61 | Rubber Antenna | 1 |
| EP***03 | Spring Washer | 2 |
| EP***01 | Wing Bolt | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Shoe Bolt And Nut Service Kit
| 11***11 | Bolt? Shoe (Y0320-K1) | 50 |
| 11***12 | Bolt? Shoe (Y0320-K3) | 50 |
| 11***00 | Shoe Bolt And Nut K | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Tilt Cylinder
| 02***08 | O-Ring (Kit) | 2 |
| 04***25 | Ring, Snap | 4 |
| 07***85 | O-Ring,(For Snow Removing) | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Track Link (Lubricate Type) (For Single Grouser) (Supply Parts)
| 07***22 | Plug,Large | 82 |
| 07***21 | Plug,(Small) | 82 |
| 11***21 | Link,Track? L.H | 80 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Track Link (Lubricate Type) (For Swamp Type) (Supply Parts)
| 07***22 | Plug,Large | 82 |
| 07***21 | Plug,(Small) | 82 |
| 11***21 | Link,Track? L.H | 80 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Travel Motor (1/3) (L.H.)
| (****0) | O-Ring | 1 |
| (****0) | Piston | 1 |
| (****0) | Screw | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Travel Motor (1/3) (R.H.)
| (****0) | O-Ring | 1 |
| (****0) | Piston | 1 |
| (****0) | Screw | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Travel Motor (2/3) (L.H.)
| (****3) | Valve Ass'Y,Relief | 1 |
| (****0) | Motor Ass'Y | 1 |
| (****0) | O-Ring | 12 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Travel Motor (2/3) (R.H.)
| (****3) | Valve Ass'Y,Relief | 1 |
| (****0) | O-Ring | 12 |
| (****0) | Valve Sub Ass'Y | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Travel Motor (3/3) (L.H.)
| (****1) | Spring | 6 |
| (****0) | O-Ring | 1 |
| (****0) | Piston Sub Ass'Y | 7 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Service Kit And Component Parts : Travel Motor (3/3) (R.H.)
| (****1) | Spring | 6 |
| (****0) | O-Ring | 1 |
| (****0) | Piston Sub Ass'Y | 7 |
Under Carriage
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Under Carriage : Carrier Roller
| 01***70 | Bolt,Rear Carrier (With Gumpad) | 2 |
| 01***20 | Bolt, Wiring Harness Mounting Bracket | 2 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Under Carriage : Front Idler
| 01***40 | Bolt,For Weight Adjusting Bolt | 8 |
| 01***10 | Nut,(Fig.F2820-01a3-12) | 2 |
| 01***36 | Wahser-Spring, Washer,Spring (Without Towing Winch) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Under Carriage : Idler Cushion
| 01***30 | Bolt - M8 X 30lg | 4 |
| 01***75 | Capscrew | 8 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Under Carriage : Roller Guard
| 01***35 | Bolt,(With Rops) | 6 |
| 01***45 | Bolt,(For 60ton Dump Body) | 12 |
| 01***50 | Bolt,(For D60pl) | 4 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Under Carriage : Roller Guard (Full Guard)
| 01***30 | Bolt,(Not Used When Towing Winch) | 16 |
| 01***35 | Bolt,(With Rops) | 22 |
| 01***45 | Bolt,(For 60ton Dump Body) | 12 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Under Carriage : Track Frame Cover
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 16 |
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 4 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 18 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Under Carriage : Track Frame Cover (For Swing Drawber)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 20 |
| 01***35 | Bolt, Mount Ground Driven Steering Pump | 4 |
| 01***85 | Bolt,(Used With Pin Puller) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Under Carriage : Track Roller
| 01***50 | Bolt,(For D60pl) | 48 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 48 |
| 07***42 | O-Ring, Between Tube And Divider Valve | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Under Carriage : Track Roller (Double Grouser) : Unit_02_of_02
| 01***50 | Bolt,(For D60pl) | 16 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 16 |
| 07***42 | O-Ring, Between Tube And Divider Valve | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Under Carriage : Track Roller (Double Grouser) : Unit_01_of_02
| 01***50 | Bolt,(For D60pl) | 32 |
| 01***45 | Washer,(For Travel Motor) (Not Show) | 32 |
| 07***42 | O-Ring, Between Tube And Divider Valve | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Under Carriage : Track Shoe (Lubricate Type) (Single Grouser) (600mm Wide)
| 07***22 | Plug,Large | 82 |
| 07***21 | Plug,(Small) | 82 |
| 11***11 | Bolt? Shoe (Y0320-K1) | 320 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Under Carriage : Track Shoe (Lubricate Type) (Swamp Type) (600mm Wide)
| 07***22 | Plug,Large | 82 |
| 07***21 | Plug,(Small) | 82 |
| 11***21 | Link,Track? L.H | 80 |
Work Equipment
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Work Equipment : Angle Cylinder (For Pat)
| (7***1) | Cylinder Ass'Y | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Work Equipment : Blade (For Power Angle Power Tilt Dozer)
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 2 |
| 02***55 | Bolt (Only For Bucket With Cutting Edge) | 24 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Work Equipment : Blade Lift Cylinder (For Pat)
| (7***1) | Cylinder Group,R.H | 1 |
| (7***1) | Cylinder Group,L.H | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Work Equipment : Dozer Frame (For Pat)
| 01***30 | Bolt,(Not Used When Towing Winch) | 4 |
| 01***05 | Bolt | 2 |
| 01***55 | Bolt,(Without Rops Guard? Canopy) | 8 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Work Equipment : Dozer Oil Line (Angle Cylinder Line) (For Pat)
| 01***20 | Bolt,(For Mono Lever Steering) | 4 |
| 01***55 | Bolt,(See Service News) | 1 |
| 01***95 | Capscrew | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Work Equipment : Dozer Oil Line (Cover) (For Pat)(#5001-5114)
| 01***20 | Bolt,(For Mono Lever Steering) | 8 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 2 |
| 01***50 | Bolt,(Spark Arrester Spec.) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Work Equipment : Dozer Oil Line Cover (For Pat)(#5115-5499)
| 01***20 | Bolt,(For Mono Lever Steering) | 13 |
| 01***35 | Bolt,(F4320-52a0 -5 ) | 2 |
| 01***50 | Bolt,(Spark Arrester Spec.) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Work Equipment : Drawbar
| 01***55 | Bolt,(Without Rops) | 4 |
| 01***60 | Flat Washer - M20 (Hardened) | 4 |
| 04***12 | Pin,Cotter (For Ripper) | 1 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Work Equipment : Link (Cylinder Pin) (For Pat)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 18 |
| 01***20 | Bolt,(Without Rops Guard? Canopy) | 2 |
| 01***95 | Screw | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Work Equipment : Swing Drawbar
| 01***30 | Bolt,(Not Used When Towing Winch) | 2 |
| 01***55 | Bolt,(Without Rops) | 16 |
| 01***32 | Washer,(Not Used With Emergency Str.) | 2 |
Komatsu : D37px-21(S/N 5001-5499-Up (For North America)) : Work Equipment : Tilt Cylinder (For Pat)
| (7***1) | Cylinder Ass'Y | 1 |
D37PX-21(S/N 5001-5499-UP (For North America)) 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 serial number string to identify the specific machine configuration. Cross-check the model designation (D37PX-21) and serial range against the plate to ensure the correct parts catalog is used.
| Prefix | Identifies | Notes |
|---|---|---|
| 5501 | D37PX-21 (For North America) | Serial range 5501 and up. This model uses the SAA4D102E-2 engine. Verify exact serial against the machine plate to distinguish from D37EX-21 or other regional variants. |
Frequently asked questions
What engine is installed in the D37PX-21?
The machine is powered by a Komatsu SAA4D102E-2, a 4-cylinder turbocharged and air-to-air aftercooled engine with a displacement of 240 cu in (3932.9 cc).
What is the operating weight of this model?
The operating weight for the D37PX-21 is 13,910 lbs (6,309.5 kg).
What machine replaced the D37PX-21?
Specific successor model information for this exact serial range is not documented in the provided technical literature; however, the series follows a lineage of D31, D37, and D39 models.
What D37PX-21(S/N 5001-5499-UP (For North America)) owners discuss
What are the common causes for a D37PX-21 losing movement in forward or reverse gears?
Loss of travel is often linked to transmission pump failures or malfunctions within the hydraulic control valves. If the machine fails to move, inspect these components first.
What specific engine is installed in the North American D37PX-21 (S/N 5001-5499-UP)?
This machine series utilizes the Komatsu SAA4D102E-2 engine.
What is a known issue regarding track behavior on this model?
Operators have reported 'track creep,' where tracks move backward upon brake release regardless of the current shifter position.
Are there any known steering or control valve malfunctions for this series?
Commonly reported issues include joystick steering control valve malfunctions and instances where the PCCS lever fails to re-center, which can cause unintended machine drift.
What should be checked regarding the hydraulic system's pressure?
The relief valve pressure for this model is specified at 2,990 psi (206.2 bar).
What is a critical check to perform when purchasing a used D37PX-21?
Verify the dashboard hour-meter against the telematics history report. Any discrepancy greater than approximately 50 hours between the two readings is a significant signal of potential hour-meter rollback.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
Serial-range & configuration variants
This page covers the Komatsu D37PX-21(S/N 5001-5499-UP (For North America)). Related factory variants of the same model family:
D37PX-21(S/N 5001-5499-UP (Overseas Version))
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