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Metric
Imperial (US)
Dozers
D39EX-24
Small dozers
- Horsepower (HP) 105 HP @ 2,200 rpm
- Horsepower (kW) 78 kW @ 2 200 rpm
- Operating weight (kg) 9 930
- Operating weight (lbs) 21,891
- Blade capacity (m^3) 2.21
- Blade capacity (yd^3) 2.89
Comfort and performance in one
Perform accurate fine dozing with exceptional blade visibility while sitting in a cab designed for comfort. Excellent maneuverability and full power to both tracks during turns make the D39EX-24 an ideal choice for grading or earth moving applications.
- Nimble size with quick response
- High blade visibility
- Quick steering and balance
Features and benefits
Parallel Link Undercarriage System (PLUS)
Designed to wear evenly so the machine provides close to 100% usage of undercarriage components, Komatsu PLUS undercarriage lowers undercarriage maintenance costs by up to 40% over a conventional undercarriage. Strengthened rollers and links increase wear life up to two times.
PAT dozer with adjustable pitch
Expand your productivity and gain more versatility in a variety of applications with a power angle tilt (PAT) dozer blade with adjustable blade pitch system.
Exceptional blade visibility
An innovative super-slant nose design provides excellent blade visibility for improved machine control and increased efficiency and productivity.
HST with electronic control
Fully electronic control provides complete automatic shifting and enables smooth control. Equipped with Komatsu-designed HST, this machine allows for Quick-Shift or variable speed selection.
Easy-access maintenance features
A swing-up fan with a gas strut-assisted lift system provides easy access to the radiator, oil cooler and charge air cooler. The hydraulic fan has a reversing fan for cleaning any objects that are restricting air flow.
Palm command control system lever
Designed for your operator’s comfort and ease of use, the ergonomic, low-effort palm command control system (PCCS) joystick controls all directional movements, including machine travel speed, as well as counter-rotation.
Specifications
- Full specs
- Standard equipment
- Optional equipment
Metric
Imperial (US)
Expand all
- Suspension: Rigid type
- Track roller frame: Monocoque, large section, durable construction
- Rollers and idlers: Lubricated track rollers
- Type of shoes (standard): Single grouser
- Number of track rollers (each side): 6
- Number of shoes (each side): 39
- Grouser height (mm): 47
- Grouser height (in): 1.9
- Shoe width (standard)(in): 20
- Shoe width (standard)(mm): 510
- Ground contact area (ft2): 25.75
- Ground contact area (cm^2): 23 919
- Ground pressure (with standard shoe)(ISO 16754)(psi): 5.24
- Ground pressure (with standard shoe)(ISO 16754)(kg/cm^2): 0.73
- Ground pressure (with standard shoe)(ISO 16754)(kpa): 36.1
- Track gauge (mm): 1 620
- Track gauge (ft): 5 ft. 4 in
- Length of track on ground (ft): 7 ft. 8 in
- Length of track on ground (mm): 2 345
- Engine Model: Komatsu SAA4D95LE-7*
- Dozers type: 4-cycle, water-cooled, direct injection
- Aspiration: Variable flow, turbocharged, air-to-air aftercooled
- Number of cylinders: 4
- Bore x stroke (in): 3.75 x 4.52
- Bore x stroke (mm): 95 x 115
- Piston displacement (L): 3.26
- Piston displacement (in^3): 199
- Governor: All-speed, electronic
- Footnote: *EPA Tier 4 Final emissions certified
-
Horsepower
- SAEJ1995 - Gross (kW): 79
- SAEJ1995 - Gross (HP): 107
- ISO 9249 / SAE J1349 - Net (HP): 105
- ISO 9249 / SAE J1349 - Gross (kW): 78
- Rated RPM: 2,200
- Fan drive type: Hydraulic
-
Lubrication system
- Filter: Full-flow
- Method: Gear pump, force lubrication
- Operator weight (approximate): Operating weight: Including power angle tilt dozer, ROPS cab, operator, standard equipment, rated capacity of lubricant, coolant, and full fuel tank.
-
Operating weight
- Operating weight (kg): 9 930
- Operating weight (lbs): 21,891
-
Tractor weight
- Tractor weight (kg): 8 790
- Tractor weight (lbs): 19,379
- Tractor weight inclusions: Including ROPS cab, U frame for power angle tilt dozer, rated capacity of lubricant, coolant, full fuel tank, operator, and standard equipment.
- Final drive features: In-shoe mounted, axial-piston-type travel motors, with integrated two-stage planetary gear reduction. Compact, in-shoe mount reduces risk of damage by debris. Bolt-on sprocket ring with triple labyrinth seal design.
- Hydrostatic transmission features: Dual-path, hydrostatic transmission provides infinite speed changes up to 8.5 mph. The variable capacity travel motors allow the operator to select the optimum speed to match specific jobs. Travel control lock lever and neutral switch.
- Hydrostatic transmission footnote: *Quick shift speeds are adjustable in the monitor.
-
Travel speed (quick shift mode)*
- 1st forward (kph): 0 - 3.4
- 1st forward (mph): 0 - 2.1
- 1st reverse (mph): 0 - 2.5
- 1st reverse (kph): 0 - 4.1
- 2nd forward (kph): 0 - 5.6
- 2nd forward (mph): 0 - 3.5
- 2nd reverse (mph): 0 - 4.0
- 2nd reverse (kph): 0 - 6.5
- 3rd forward (mph): 0 - 5.3
- 3rd forward (kph): 0 - 8.5
- 3rd reverse (mph): 0 - 5.3
- 3rd reverse (kph): 0 - 8.5
-
Forward
- Travel speed forward (variable mode) (kph): 0 - 8.5
- Travel speed forward (variable mode) (mph): 0 - 5.3
-
Reverse
- Travel speed reverse (variable mode) (mph): 0 - 5.3
- Travel speed reverse (variable mode) (kph): 0 - 8.5
- Fuel tank (US gal): 50.2
- Fuel tank (L): 190
- Diesel Exhaust Fluid (DEF) tank (L): 10
- Diesel Exhaust Fluid (DEF) tank (US gal): 2.6
- Coolant (US gal): 9
- Coolant (L): 34
- Engine oil (L): 11
- Engine oil (US gal): 2.9
- Final drive (US gal): 0.9
- Final drive (L): 3.5
- Hydraulic tank (L): 64
- Hydraulic tank (US gal): 17
- Steering system features: Palm Command Control System (PCCS) joystick control for all directional movements. Pushing the joystick forward results in forward machine travel, while pulling it back reverses the machine. Simply tilt the joystick to the left or right to make a turn. Tilting the joystick fully to the left or right activates counter-rotation. Hydrostatic Transmission (HST) provides smooth, powerful turns. Fully electronic control enables smooth control that can be adjusted in the monitor. The PCCS utilizes shift buttons to increase and decrease speed.
- Minimum turning radius (in): 87*
- Minimum turning radius (m): 2.2*
- Steering system footnote: *As measured by track marks on the ground at pivot turn.
Metric
Imperial (US)
- Accumulator for Electric Proportional Control (EPC)
- Air cleaner, dry, double element type with caution lamp on monitor
- Air conditioner (A/C)
- Air inlet
- Alternator, 24 V/85 A
- Auto idle shutdown
- Back-up alarm
- Batteries, large capacity 24 V/92 Ah
- Battery disconnect switch
- Cab accessories
--12 V × 2 power supply
--Cup holder
--Rear view mirror
--Rear view monitor system - Crankcase guard and underguard
- Decelerator/brake pedal (Single pedal)
- Electronically controlled Hydrostatic Transmission (HST) with quick-shift and variable speed settings
- Electronic high resolution LCD color monitor panel with on-board diagnostics
- Engine hood and side panels
- Engine, KOMATSU SAA4D95LE-7, NET output of 107 HP, direct injection, water-cooled turbocharged, air-to-air aftercooler, cooled EGR, EPA Tier 4 Final and EU Stage 4 emissions certified
- Engine shutdown secondary switch
- Fan, hydraulic driven, electronic control
- Filler cap locks and cover locks
- Foot rest, high mounted
- Grease gun holder
- High altitude arrangement (No fuel adjustment up to 2300 m)
- Horn
- Hydraulics for PAT dozer
- Intake pipe with precleaner
- Komatsu Diesel Oxidation Catalyst (KDOC)
- Komtrax® Level 5
- Lunch box holder
- Marks and plates, English
- New Operator Identification System
- Palm Command Control System (PCCS) with electronic control for travel control
- Palm Command Control System (PCCS) with EPC for blade control
- Power turn with counter rotation
- Pullhook, front
- Radiator guard grid
- Radiator reserve tank
- Real-time DEF monitoring
- Rear-hinged radiator guard
- Reverse travel speed presets
- ROPS Cab
- Seat belt, 3" retractable
- Seat belt indicator
- Seat, air suspension, fabric, heated, low back, headrest
- Sealed electical connections
- Shovel holder
- Starting motor, 24 V/4.5 kW
- Selective Catalytic Reduction (SCR)
- Self adjusting idler
- Sprockets, bolt-on
- Sprocket inner guard
- Steering System, hydrostatic
- Track roller guards, end section
- Track shoe assembly (PLUS)
- Sealed and lubricated
- D39EX-24: 20" single grouser shoe
- Triple labyrinth final drive
- Underguards, heavy duty
- Engine
- Transmission
- Water separator
- Wide core cooling package
- Worklamp (Front 3, rear 2)
* Dozer assembly and rear-mounted equipment are not included in base machine price.
** Cab meets OSHA/MSHA ROPS and FOPS Level 2 standards (ROPS standards ISO 3471, SAE J/ISO 3471; FOPS standards ISO 3449)
- Accumulator for Electric Proportional Control (EPC)
- Air cleaner, dry, double element type with caution lamp on monitor
- Air conditioner (A/C)
- Air inlet
- Alternator, 24 V/85 A
- Auto idle shutdown
- Back-up alarm
- Batteries, large capacity 24 V/92 Ah
- Battery disconnect switch
- Cab accessories
--12 V × 2 power supply
--Cup holder
--Rear view mirror
--Rear view monitor system - Crankcase guard and underguard
- Decelerator/brake pedal (Single pedal)
- Electronically controlled Hydrostatic Transmission (HST) with quick-shift and variable speed settings
- Electronic high resolution LCD color monitor panel with on-board diagnostics
- Engine hood and side panels
- Engine, KOMATSU SAA4D95LE-7, NET output of 80 kW, direct injection, water-cooled turbocharged, air-to-air aftercooler, cooled EGR, EPA Tier 4 Final and EU Stage 4 emissions certified
- Engine shutdown secondary switch
- Fan, hydraulic driven, electronic control
- Filler cap locks and cover locks
- Foot rest, high mounted
- Grease gun holder
- High altitude arrangement (No fuel adjustment up to 2300 m)
- Horn
- Hydraulics for PAT dozer
- Intake pipe with precleaner
- Komatsu Diesel Oxidation Catalyst (KDOC)
- Komtrax® Level 5
- Lunch box holder
- Marks and plates, English
- New Operator Identification System
- Palm Command Control System (PCCS) with electronic control for travel control
- Palm Command Control System (PCCS) with EPC for blade control
- Power turn with counter rotation
- Pullhook, front
- Radiator guard grid
- Radiator reserve tank
- Real-time DEF monitoring
- Rear-hinged radiator guard
- Reverse travel speed presets
- ROPS Cab
- Seat belt, 76 mm retractable
- Seat belt indicator
- Seat, air suspension, fabric, heated, low back, headrest
- Sealed electical connections
- Shovel holder
- Starting motor, 24 V/4.5 kW
- Selective Catalytic Reduction (SCR)
- Self adjusting idler
- Sprockets, bolt-on
- Sprocket inner guard
- Steering System, hydrostatic
- Track roller guards, end section
- Track shoe assembly (PLUS)
- Sealed and lubricated
- D39EX-24: 510 mm single grouser shoe
- Triple labyrinth final drive
- Underguards, heavy duty
- Engine
- Transmission
- Water separator
- Wide core cooling package
- Worklamp (Front 3, rear 2)
* Dozer assembly and rear-mounted equipment are not included in base machine price.
** Cab meets OSHA/MSHA ROPS and FOPS Level 2 standards (ROPS standards ISO 3471, SAE J/ISO 3471; FOPS standards ISO 3449)
Metric
Imperial (US)
- Dozer assembly
- Hitch
- Hydraulics for rear equipment
- Track roller guard, full length
Multi-shank ripper (for D39EX only)
- Weight: 1,036 lb
- Beam length: 62"
- Maximum lift above ground: 15"
- Maximum digging depth: 13"
- Number of shanks: 3
- Dozer assembly
- Hitch
- Hydraulics for rear equipment
- Track roller guard, full length
Multi-shank ripper (for D39EX only)
- Weight: 470 kg
- Beam length: 1569 mm
- Maximum lift above ground: 389 mm
- Maximum digging depth: 336 mm
- Number of shanks: 3
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Infographic
D39PX-24 Slant Nose Dozer Infographic
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