Komatsu DDM020-5L-Q(S/N 60001-UP (D21P-6))
Maintenance schedule, common problems & OEM parts breakdown
The Komatsu DDM020-5L-Q (S/N 60001-UP, D21P-6) is a mid-size crawler bulldozer designed for earthmoving and grading applications. It belongs to the DDM020-5 series, which succeeded the D20Q-5 generation. Operating weights for this class typically range from 13,800 to 16,000 lbs, depending on the specific configuration and attachment package. The machine is powered by a Komatsu diesel engine, with the D21P-6 designation indicating a specific powertrain variant within the 5-series lineup. Configurations offered include standard dozer blades and optional ripper setups, catering to both light construction and heavy-duty site preparation.
Across the DDM020 series generations, Komatsu refined the undercarriage design and hydraulic systems to improve cost-efficiency and durability. The transition to the 5-series introduced enhanced operator comfort and more robust structural components compared to the D20Q-5 predecessor. In the used and parts market, the DDM020-5L-Q remains significant due to its widespread use in municipal and commercial projects. Its modular powertrain and standardized fluid specifications make it a reliable choice for fleets seeking cost-effective maintenance solutions. The machine's continued presence in the secondary market highlights its balance of power and operational economy.
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 DDM020-5L-Q(S/N 60001-UP (D21P-6)) specifications
Engine
| Model | Not documented for this exact serial range — verify with your dealer |
| Net Power | Not documented for this exact serial range — verify with your dealer |
| Displacement | Not documented for this exact serial range — verify with your dealer |
| Emissions Tier | Not documented for this exact serial range — verify with your dealer |
Weights
| Operating Weight (Standard) | Not documented for this exact serial range — verify with your dealer |
| Operating Weight (XL) | Not documented for this exact serial range — verify with your dealer |
| Operating Weight (LGP) | Not documented for this exact serial range — verify with your dealer |
Dimensions
| Blade Width Options | Not documented for this exact serial range — verify with your dealer |
| Transport Length | Not documented for this exact serial range — verify with your dealer |
| Transport Width | Not documented for this exact serial range — verify with your dealer |
| Transport Height | Not documented for this exact serial range — verify with your dealer |
| Track Gauge | Not documented for this exact serial range — verify with your dealer |
| Track Shoe Widths | Not documented for this exact serial range — verify with your dealer |
| Ground Clearance | Not documented for this exact serial range — verify with your dealer |
Performance
| Travel Speed (Forward Gear 1) | Not documented for this exact serial range — verify with your dealer |
| Travel Speed (Forward Gear 2) | Not documented for this exact serial range — verify with your dealer |
| Travel Speed (Forward Gear 3) | Not documented for this exact serial range — verify with your dealer |
| Travel Speed (Reverse Gear 1) | Not documented for this exact serial range — verify with your dealer |
| Travel Speed (Reverse Gear 2) | Not documented for this exact serial range — verify with your dealer |
| Travel Speed (Reverse Gear 3) | Not documented for this exact serial range — verify with your dealer |
| Drawbar Pull | Not documented for this exact serial range — verify with your dealer |
| Gradeability | Not documented for this exact serial range — verify with your dealer |
| Ground Pressure (Std) | Not documented for this exact serial range — verify with your dealer |
| Ground Pressure (LGP) | Not documented for this exact serial range — verify with your dealer |
Blades
| Straight Blade (S) Capacity | Not documented for this exact serial range — verify with your dealer |
| Semi-U Blade (SU) Capacity | Not documented for this exact serial range — verify with your dealer |
| Universal Blade (U) Capacity | Not documented for this exact serial range — verify with your dealer |
| VPAT Blade Capacity | Not documented for this exact serial range — verify with your dealer |
Service Capacities
| Fuel Tank | Not documented for this exact serial range — verify with your dealer |
| Hydraulic System | Not documented for this exact serial range — verify with your dealer |
| Engine Oil | Not documented for this exact serial range — verify with your dealer |
| Cooling System | Not documented for this exact serial range — verify with your dealer |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
Komatsu DDM020-5L-Q(S/N 60001-UP (D21P-6)) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
Servicing the DDM020-5L-Q(S/N 60001-UP (D21P-6)) beyond the schedule
Predictive Maintenance & Fluid Analysis
Utilize KOWA fluid analysis at every 500-hour interval to monitor engine wear metals and hydraulic contamination. Check coolant SCA concentration at 500 hours to prevent scaling in the DDM020-5L-Q cooling system. Monitor hydraulic oil particle counts to detect pump or valve wear early. Track fuel dilution and soot levels in engine oil to assess combustion efficiency. Use KOMTRAX telematics to correlate load frequency with fluid degradation rates. Adjust service intervals based on analysis results rather than fixed hours when operating in extreme conditions.
Corrective & Common Repairs
Address steering clutch wear promptly to prevent track slippage and uneven undercarriage wear on the DDM020-5L-Q. Inspect final drive seals for leaks, as oil contamination is a common failure point in this series. Check hydraulic hose conditions regularly, especially near high-vibration areas like the engine mount. Replace fuel filters at 500 hours to protect the injection system from contamination. Monitor track tension to avoid excessive wear on sprockets and rollers. Verify brake band adjustment to ensure safe stopping power and prevent overheating during heavy grading.
Overhaul & Rebuild Points
Plan for major component overhaul around 10,000 to 15,000 hours for the DDM020-5L-Q powertrain. Inspect the torque converter and transmission gears for wear during the 2,000-hour comprehensive evaluation. Check the undercarriage for elongated pins and bushings, replacing groups before total failure. Evaluate the engine block and cylinder liners for wear during major service intervals. Consider rebuilding the hydraulic pump and motor if flow rates drop below specification. Inspect the structural frame for cracks near high-stress points like the blade pivot and ripper mount.
Seasonal & Environment Servicing
In cold climates, ensure the coolant mixture meets the required freeze protection for the DDM020-5L-Q. Use lower viscosity engine oil during winter starts to reduce cranking load. Check the battery hold-down and terminals for corrosion, which accelerates in salty environments. In dusty conditions, inspect the air filter restriction indicator more frequently and clean the radiator fins daily. Protect hydraulic lines from UV degradation by checking for cracks and abrasion. Drain the fuel water separator more often in humid conditions to prevent microbial growth in the tank.
DDM020-5L-Q(S/N 60001-UP (D21P-6)) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 07281-00197 | Clamp,(With Pre-Fuel Filter) | Fuel system service | Check fitment → |
| 113-60-43320 | Cartridge,Hydraulic Oil Filter (D31s) | Hydraulic service | Check fitment → |
| 113-60-43321 | Cartridge,Hydraulic Oil Filter (D31s) | Hydraulic service | Check fitment → |
| 08036-01414 | Clip,(For Add.Filter)(Except Japan) | Scheduled service item | Check fitment → |
| 103-98-21652 | Plate? Caution,Hydraulic Filter | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
DDM020-5L-Q(S/N 60001-UP (D21P-6)) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| CA111 | Engine Controller Internal Fault | ECM hardware failure or corrupted internal memory. | Replace or reprogram the ECM. |
| CA115 | Engine Crankshaft Speed Sensor and Backup Speed Sensor Failure | Broken sensor, wiring issue, or connector corrosion. | Replace the speed sensor and verify voltage at the pin connector. |
| CA122 | Intake Air Pressure Sensor Feedback Voltage Too High | Sensor malfunction or restricted airflow upstream. | Verify the intake pressure sensor and wiring integrity. |
| CA123 | Intake Air Pressure Sensor Feedback Voltage Too Low | Sensor short circuit or significant airflow restriction. | Check for a sensor short or an airflow restriction. |
| CA441 | Battery Voltage Too Low | Weak battery, loose connections, or alternator failure. | Replace the alternator or battery; check the voltage regulator. |
| CA442 | Battery Voltage Too High | Alternator overcharging or voltage regulator failure. | Replace the alternator or battery; check the voltage regulator. |
| CA451 | Common Rail Pressure Sensor Feedback Value Too High | Faulty rail pressure sensor or actual overpressure condition. | Diagnose the fuel rail pressure sensor or pump lines. |
| CA452 | Common Rail Pressure Sensor Feedback Value Too Low | Faulty rail pressure sensor or low fuel supply pressure. | Diagnose the fuel rail pressure sensor or pump lines. |
| AA10NX | Air Cleaner Clogging | Dirty or blocked air filter element. | Replace the air filter. |
| B@BCNS | Engine Coolant Overheating | Low coolant level, clogged radiator, or fan belt failure. | Check radiator fins, fan belt, and coolant level. |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
DDM020-5L-Q(S/N 60001-UP (D21P-6)) attachments & work tools
Blades
The DDM020-5L-Q (D21P-6) series utilizes blade configurations typical of the D21P-6 class, including Semi-U (SU) and Straight (S) types. VPAT (Variable Position Angle Tilt) blade availability is not documented for this specific serial range in the provided sources; verify with your dealer. Typical widths and capacities vary by configuration/series and are not explicitly listed for the DDM020-5L-Q in the source text.
Rippers
Multi-shank ripper options are available for the D21P-6 class, with sources indicating 3-shank configurations for similar mid-size Komatsu dozers. Single-shank options are not explicitly documented for the DDM020-5L-Q in the provided sources. Ripper weights and specific shank counts for this exact serial range are not provided; verify with your dealer.
Winches
Towing winch options for the DDM020-5L-Q are not explicitly detailed in the provided sources. Winch class and capacity data for this specific model and serial range are not available in the source text.
Drawbars/Counterweights
Drawbar and counterweight specifications for the DDM020-5L-Q are not explicitly detailed in the provided sources. Availability and weight data for this specific model and serial range are not available in the source text.
Cab/ROPS Guarding
Forestry and waste configuration guarding options for the DDM020-5L-Q are not explicitly detailed in the provided sources. Specific ROPS guarding details for this model and serial range are not available in the source text.
Hydraulic Arrangement
Hydraulic arrangement notes for front/rear tools on the DDM020-5L-Q are not explicitly detailed in the provided sources. Specific hydraulic circuit details for this model and serial range are not available in the source text.
All DDM020-5L-Q(S/N 60001-UP (D21P-6)) assemblies by section
Every catalogued assembly group for the Komatsu DDM020-5L-Q(S/N 60001-UP (D21P-6)). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Control System
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Control System : Brake Pedal (For Lever Steering) (For Trimming Dozer) (For Cuba)(#62807-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 5 |
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 1 |
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Control System : Inching Pedal (For F3-R3 Transmission) (For Trimming Dozer) (For Cuba)(#62807-)
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 3 |
| 01***08 | Nut,(For Canvas Canopy?Head Guard) | 3 |
| 01***08 | Nut,(For Straight Tilt Dozer) (D65p) | 1 |
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Control System : Oil Cooler Piping (For Trimming Dozer)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***45 | Bolt,(For Power Tilt Mech Angle) | 2 |
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Control System : Steering Control Lever (For Lever Steering) (For Trimming Dozer) (For Cuba)(#62807-)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
Engine Related Parts And Electrical System
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Engine Related Parts And Electrical System : Back-Up Alarm (For Trimming Dozer)
| 01***16 | Bolt (Welded) | 1 |
| 01***20 | Bolt,(Large Capacity Type) (Std) | 4 |
| 01***25 | Bolt,(Sandy? Dusty Terrain Spec.) | 1 |
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Engine Related Parts And Electrical System : Battery (For Trimming Dozer) (For Cuba)(#62807-)
| 01***06 | Nut,(With Back-Up Alarm) (Op), Nut; Was 01580-10806 | 4 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
| 08***10 | Terminal? (+) | 2 |
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Engine Related Parts And Electrical System : Electrical System (For Trimming Dozer) (For Cuba)(#62807-)
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 3 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 12 |
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Engine Related Parts And Electrical System : Fuel Tank And Piping (For Trimming Dozer) (For Cuba)(#62807-)
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 4 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 4 |
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Engine Related Parts And Electrical System : Instrument Panel (For Trimming Dozer) (For Cuba)(#62807-)
| 01***12 | Bolt, Bolt,(No Need To Quick Shift) | 1 |
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 2 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 4 |
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Engine Related Parts And Electrical System : Radiator And Piping (For Trimming Dozer) (For Cuba)(#62807-)
| 01***16 | Bolt (With Air Heater & Conditioner) | 4 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 7 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
Guard
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Guard : Cross Bar (For Trimming Dozer)
| 01***40 | Bolt,R.H. Outside And L.H. Inside, Bolt | 8 |
| 01***60 | Bolt,(For Ripper) | 16 |
| 01***45 | Bolt | 8 |
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Guard : Loader Frame And Floor Plate (For Trimming Dozer) (With Rops Cab)(For Cuba)(#62807-)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 12 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***55 | Bolt,(For Reinforced Type) | 12 |
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Guard : Operator'S Seat (Rigid Type) (For Lever Steering) (For Trimming Dozer) (For Cuba)(#62807-)
| 01***25 | Bolt,Without Revolution Sensor | 4 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 10 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Guard : Radiator Guard And Hood (For Trimming Dozer) (For Cuba)(#62807-)
| 01***30 | Bolt,(For Center Guard) | 2 |
| 01***16 | Bolt, Mount Washer Tank To Bracket, Bolt | 3 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Guard : Rear Cover And Hydraulic Tank (For Trimming Dozer) (For Cuba)(#62807-)
| 01***20 | Bolt,(With Auto Emergency Steering) | 3 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 6 |
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Guard : Rear Guard (For Trimming Dozer) (For Cuba)(#62807-)
| 01***65 | Bolt,L.H | 10 |
| 01***45 | Washer,(Without R.O.P.S.) | 10 |
| 10***10 | Guard,Rear | 1 |
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Guard : Under Guard (For Trimming Dozer)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***30 | Bolt-Hex, Bolt,(With Center Guard) | 12 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 3 |
Main Clutch?Transmission? Steering And Final Drive
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Main Clutch?Transmission? Steering And Final Drive : Final Drive Gear (For Trimming Dozer)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 16 |
| 01***25 | Bolt,(Without Rops Guard? Canopy) | 4 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 16 |
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Main Clutch?Transmission? Steering And Final Drive : Steering Case And Main Frame (For Trimming Dozer) (For Cuba)(#62807-)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
| 01***45 | Bolt,(For Power Tilt Mech Angle) | 11 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 11 |
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Main Clutch?Transmission? Steering And Final Drive : Steering Clutch (For Trimming Dozer)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 16 |
| 01***10 | Nut (K10) | 2 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 16 |
Mark Plate? Tool And Kit
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Mark Plate? Tool And Kit : Marks And Plates (Spanish) (For Trimming Dozer) (For Cuba)(#62807-)
| 04***60 | Screw,Machine Model (For Ec Reg.) | 4 |
| 09***00 | Plate? Safety,Inspection And Maintenance | 1 |
| 09***35 | Plate? Name,(Limited Supply) (Spanish) | 1 |
Track
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Track : Recoil Spring (For Trimming Dozer)
| 01***16 | Bolt (With Air Heater & Conditioner) | 10 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***30 | Bolt,(Not Used With Emergency Str.) | 8 |
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Track : Track Frame (For Trimming Dozer)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 12 |
| 01***25 | Bolt,(For Rubber Shoe) | 24 |
| 01***35 | Bolt,R.H. Outside And L.H. Inside | 16 |
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Track : Track Roller (For 6-Track Roller) (For Trimming Dozer)
| 01***20 | Bolt,(Sandy? Dusty Terrain Spec.) | 12 |
| 01***45 | Bolt, Mount Center Hinge Retainer (Upper) | 48 |
| 01***25 | Washer,Spring?(Sandy And Dusty Spec.) | 12 |
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Track : Track Shoe (Master Pin Type) (Semi-Double Grouser With Hole) (For Trimming Dozer) (For Cuba)(#62807-)
| 01***18 | Nut? Shoe (Kit) | 362 |
| 10***21 | Link,Track? L.H | 78 |
| 10***31 | Link,Track? R.H | 78 |
Work Equipment
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Work Equipment : Hydraulic Piping (Tilt Cylinder Line) (Dozer Side) (For Trimming Dozer)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 18 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 18 |
| 01***32 | Washer,(With Auto Emergency Steering) | 16 |
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Work Equipment : Trimming Cylinder
| 07***70 | O-Ring,(For Intake Air Cover) | 1 |
| 07***65 | O-Ring,(F5350-62a0 -14 ) | 1 |
| 07***65 | Ring,Back-Up (Kit) | 1 |
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Work Equipment : Trimming Dozer Blade
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 10 |
| 01***30 | Washer, Spring (Supplied W/Spider Assembly), Washer-Spring | 10 |
| 07***00 | Fitting, Grease - Upper Hinge Pin | 4 |
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Work Equipment : Trimming Dozer Frame
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***85 | Bolt,(For 2nd Travel Speed) (Op) | 2 |
| 01***50 | Bolt,(For Tbg/Abe Spec.) | 24 |
Work Equipment Control System
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Work Equipment Control System : Control Valve (For Trimming Dozer) (1/2)
| 01***16 | Bolt (Op) | 4 |
| 01***25 | Bolt, Seal Cover Mounting | 2 |
| 01***30 | Bolt | 2 |
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Work Equipment Control System : Control Valve (For Trimming Dozer) (2/2)
| 01***08 | Nut (Op) | 1 |
| 07***11 | O-Ring (Kit) | 1 |
| 07***14 | O-Ring,(F4350-61a0a-20 ) | 2 |
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Work Equipment Control System : Hydraulic Piping (Lift Cylinder Line) (For Trimming Dozer)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 4 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 6 |
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Work Equipment Control System : Hydraulic Piping (Tank To Pump To Valve) (For Trimming Dozer)
| 01***45 | Screw | 4 |
| 01***16 | Bolt, Battery To Frame Ground Wire Attaching | 1 |
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 1 |
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Work Equipment Control System : Hydraulic Piping (Tilt Cylinder Line) (Chassis Side) (For Trimming Dozer)
| 01***20 | Bolt,(For Quick Shift) (Mitsubishi) | 2 |
| 01***30 | Bolt,(For Quick Shift) (Mitsubishi) | 8 |
| 01***35 | Bolt,(For Quick Shift) (Mitsubishi) | 4 |
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Work Equipment Control System : Hydraulic Tank And Filter (For Trimming Dozer ) (For Cuba)(#62807-)
| 01***25 | Bolt,Without Revolution Sensor | 7 |
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 3 |
| 01***25 | Washer,Spring?For Additional Rear Lam | 7 |
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Work Equipment Control System : Lift Cylinder (For Trimming Dozer)
| 01***25 | Bolt,(For Canvas Canopy?Head Guard) | 1 |
| 01***09 | Nut,(With Body Positioner) | 2 |
| 01***23 | Washer, Wiring Harness Mounting Bracket | 2 |
Komatsu : Ddm020-5l-Q(S/N 60001-Up (D21p-6)) : Work Equipment Control System : Work Equipment Control Lever (For Trimming Dozer) (For Cuba)(#62807-)
| 01***16 | Bolt (With Air Heater & Conditioner) | 2 |
| 01***20 | Bolt,(With Auto Emergency Steering) | 6 |
| 01***30 | Bolt,(For Mechanical Governor) | 1 |
Frequently asked questions
What engine does the Komatsu DDM020-5L-Q use?
The Komatsu DDM020-5L-Q (S/N 60001-UP, D21P-6) is equipped with a Komatsu diesel engine, specifically identified by the D21P-6 designation in the serial range documentation.
What is the operating weight of the DDM020-5L-Q?
Operating weight varies by configuration and series. For the DDM020-5L-Q, weights typically fall within the 13,800 to 16,000 lbs range depending on the blade and ripper setup.
What model replaced the Komatsu DDM020-5L-Q?
The DDM020-5L-Q is part of the DDM020-5 series. Successors in the Komatsu lineup include later generations such as the DDM020-6 series, which feature updated emissions compliance and refined powertrain technology.
What DDM020-5L-Q(S/N 60001-UP (D21P-6)) owners discuss
What engine powers the Komatsu DDM020-5L-Q (S/N 60001-UP, D21P-6)?
What are the common powertrain and hydraulic behaviors for this dozer series?
What undercarriage and wear patterns are typical for this machine type?
What are the common electrical and sensor issues for this model?
What should be checked when buying a used DDM020-5L-Q (S/N 60001-UP, D21P-6)?
How does the DDM020-5L-Q differ from the DDM020-5L-21?
What are the key maintenance intervals for this dozer?
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
Need a specific DDM020-5L-Q(S/N 60001-UP (D21P-6)) part?
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