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Small dozer

D39EXi-24

  • Horsepower 78 kW @ 2 200 rpm 105 HP @ 2,200 rpm
  • Operating weight 10 010 kg 22,068 lbs.
  • Blade capacity 2.21 m³ 2.89 yd³

Powerful, versatile and yes, nimble

If you want a dozer that’s equally at home performing heavy site prep and accurate fine work, this model is an excellent choice. Powered by a fuel efficient, environmentally friendly EPA Tier 4 Final certified engine, it offers your operators a quiet, comfortable cab that provides unrivaled blade visibility. It’s engineered to get jobs done quickly and accurately with its outstanding blade response, fast work equipment speed, an additional “fast-blade mode” that boosts blade speed for high-speed grading, and surprising maneuverability via full power to both tracks during turns or counter rotation steering.

  • Get new operators up to speed quickly
  • Go from mass ex to finished grading faster than ever
  • Fully integrate 3D design data into your machines
  • Empower operators to work efficiently, pass after pass

Features and benefits

Learns as it works

With proactive dozing control, even your less experienced operators can automatically cut/strip from existing terrain. The dozer measures the terrain it tracks over and uses that data to plan the next pass. Can improve productivity by up to 60% versus previous generation.

Spreads fill material automatically

Lift layer control automatically lets your operators spread fill from existing terrain with the press of a button. The dozer measures the terrain it tracks over and uses the data it gathers to plan the next pass. Attain up to double your production and achieve consistent layers for compaction quality.

Levels material even during rough dozing

Tilt steering control automatically tilts the blade to maintain straight travel during rough dozing. Reduces operator steering input by up to 80%.

Quick surface creation

Operators can create a temporary design surface with the press of a button. Combined with other iMC 2.0 functions, your crew can begin stripping or spreading using automated input while waiting for the finish grade model.

Close the operator skill gap

Machine logic allows the dozer to continuously learn the terrain and make calculated decisions for the next pass. Intelligent Machine Control helps lessen the skill gap between new and experienced operators.

Advanced machine control

In select situations — auto stripping, rough dozing, spreading, advanced finish grading — operators can opt for nearly 100% machine control auto usage. They can even apply automatic control without having a 3D model.

A machine that learns from the operator

Automatic functions give the dozer the ability to learn from operator's blade input, resulting in more adaptability, easier operation and less reliance on operator input.

Outstanding blade response for finish grading

To deliver unparalleled grading performance, iMC enables the dozer to look ahead at grade transitions and alter the blade angle accordingly.

Specifications for D39EXi-24

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US system Metric
Engine
Model Komatsu SAA4D95LE-7*
Type 4-cycle, water-cooled, direct injection
Aspiration Variable flow turbocharged, air-to-air aftercooled
Number of cylinders 4
Bore x stroke 95 x 115 mm
Piston displacement 3.26 L
Governor All-speed, electronic
Horsepower:  
SAE J1995 - Gross 79 kW
ISO 9249 / SAE J1349 - Net 78 kW
Rated rpm 2 200 rpm
Fan drive type Hydraulic
Lubrication system:  
Method Gear pump, force lubrication
Filter Full-flow
*EPA Tier 4 Final emissions certified  
Model Komatsu SAA4D95LE-7*
Type 4-cycle, water-cooled, direct injection
Aspiration Variable flow turbocharged, air-to-air aftercooled
Number of cylinders 4
Bore x stroke 3.75 x 4.52 in
Piston displacement 199 in³
Governor All-speed, electronic
Horsepower:  
SAE J1995 - Gross 107 HP
ISO 9249 / SAE J1349 - Net 105 HP
Rated rpm 2,200 rpm
Fan drive type Hydraulic
Lubrication system:  
Method Gear pump, force lubrication
Filter Full-flow
*EPA Tier 4 Final emissions certified  
Hydrostatic transmission

Dual-path, hydrostatic transmission provides infinite speed changes up to 8.5 km/h. The variable capacity travel motors allow the operator to select the optimum speed to match specific jobs. Travel control lock lever and neutral switch.

Travel speed
(quick shift mode)*
Forward Reverse
1st 0–3.4 kph 0–4.1 kph
2nd 0–5.6 kph 0–6.5 kph
Travel speed
(variable mode)
0–8.5 kph 0–8.5 kph

*Quick shift speeds are adjustable in the monitor.

Dual-path, hydrostatic transmission provides infinite speed changes up to 5.3 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.

Travel speed
(quick shift mode)*
Forward Reverse
1st 0–2.1 mph 0–2.5 mph
2nd 0–3.5 mph 0–4.0 mph
Travel speed
(variable mode)
0–5.3 mph 0–5.3 mph

*Quick shift speeds are adjustable in the monitor.

Final drive

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.

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.

Steering system

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* 2.2 m

*As measured by track marks on the ground at pivot turn.

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* 87 in

*As measured by track marks on the ground at pivot turn.

Undercarriage
Suspension Rigid type
Track roller frame Monocoque, large section, durable construction
Rollers and idlers Lubricated track rollers
Sealed and lubricated track Track tension is easily adjusted with grease gun.
Number of track rollers (each side) 6
Type of shoes (standard) Single grouser
Number of shoes (each side) 39
Grouser height 47 mm
Shoe width (standard) 510 mm
Ground contact area 23 919 cm²
Ground pressure
(with dozer, ROPS cab)
36.1 kPa / 0.37 kgf/cm²
Track gauge 1 620 mm
Length of track on ground 2 345 mm
Suspension Rigid type
Track roller frame Monocoque, large section, durable construction
Rollers and idlers Lubricated track rollers
Sealed and lubricated track Track tension is easily adjusted with grease gun.
Number of track rollers (each side) 6
Type of shoes (standard) Single grouser
Number of shoes (each side) 39
Grouser height 1.9 in
Shoe width (standard) 20 in
Ground contact area 3,707 in²
Ground pressure
(with dozer, ROPS cab)
5.24 psi
Track gauge 5 ft. 4 in
Length of track on ground 7 ft. 8 in
Service refill capacities
Coolant 34 L
Fuel tank 190 L
Engine oil 11 L
Hydraulic tank 64 L
Final drive (each side) 3.5 L
Diesel Exhaust Fluid (DEF) tank 10 L
Coolant 9.0 US gal
Fuel tank 50.2 US gal
Engine oil 2.9 US gal
Hydraulic tank 17 US gal
Final drive (each side) 0.9 US gal
Diesel Exhaust Fluid (DEF) tank 2.6 US gal
Operating weight (approximate)
Tractor weight:
Including ROPS cab, U frame for power angle
tilt dozer, rated capacity of lubricant, coolant,
full fuel tank, operator, and standard equipment.
8 850 kg
Operating weight:
Operating weight: Including power angle tilt dozer,
ROPS cab, operator, standard equipment, rated
capacity of lubricant, coolant, and full fuel tank.
10 010 kg
Tractor weight:
Including ROPS cab, U frame for power angle
tilt dozer, rated capacity of lubricant, coolant,
full fuel tank, operator, and standard equipment.
19,510 lbs.
Operating weight:
Operating weight: Including power angle tilt dozer,
ROPS cab, operator, standard equipment, rated
capacity of lubricant, coolant, and full fuel tank.
22,068 lbs.
  • 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
  • Back-up alarm
  • Batteries, large capacity 24 V/92 Ah
  • Cab accessories
    • 12 V   2 power supply
    • Cup holder
    • Rear view mirror
    • Rear view monitor system
    • Bluetooth/USB compatible radio with remote AUX plug (3.5 mm)
  • Crankcase guard and underguard
  • Decelerator/brake pedal (Single pedal)
  • Electronically controlled Hydrostatic
    Transmission (HST) with quick-shift and variable speed settings
  • Electronic monitor panel with on-board diagnostics
  • Engine hood and side panels
  • Engine, KOMATSU SAA4D95LE-7, gross 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
  • Fan, hydraulic driven, electronic control
  • Filler cap locks and cover locks
  • Foot rest, high mounted
  • Fuel pre-filter (10 micron) and fuel filter (2 micron)
  • Grease gun holder
  • High altitude arrangement (No fuel adjustment up to 2300 m)
  • Horn
  • Hydraulics for PAT dozer
  • Intake pipe with precleaner
  • Large high-resolution LCD
  • LED worklights
  • 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
    Meets ISO 3471, SAE J/ISO 3471 ROPS standards, and ISO 3449 FOPS standard.
  • Seat belt, 76 mm retractable
  • Seat, air suspension, fabric, heated, low back, headrest
  • Starting motor, 24 V/4.5 kW
  • Self adjusting roller
  • Sprockets, bolt-on
  • Sprocket inner guard
  • Track roller guards, end section
  • Track shoe assembly (PLUS)
    —Heavy-Duty lubricated rotary bushing
    • D39EXi-24: 510 mm single grouser shoe
    • D39PXi-24: 635 mm single grouser shoe
  • Triple labyrinth final drive
  • Water separator
  • 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
  • Back-up alarm
  • Batteries, large capacity 24 V/92 Ah
  • Cab accessories
    • 12 V   2 power supply
    • Cup holder
    • Rear view mirror
    • Rear view monitor system
    • Bluetooth/USB compatible radio with remote AUX plug (3.5 mm)
  • Crankcase guard and underguard
  • Decelerator/brake pedal (Single pedal)
  • Electronically controlled Hydrostatic
    Transmission (HST) with quick-shift and variable speed settings
  • Electronic monitor panel with on-board diagnostics
  • Engine hood and side panels
  • Engine, KOMATSU SAA4D95LE-7, gross 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
  • Fan, hydraulic driven, electronic control
  • Filler cap locks and cover locks
  • Foot rest, high mounted
  • Fuel pre-filter (10 micron) and fuel filter (2 micron)
  • Grease gun holder
  • High altitude arrangement (No fuel adjustment up to 2300 m)
  • Horn
  • Hydraulics for PAT dozer
  • Intake pipe with precleaner
  • Large high-resolution LCD
  • LED worklights
  • 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
    Meets ISO 3471, SAE J/ISO 3471 ROPS standards, and ISO 3449 FOPS standard.
  • Seat belt, 3" retractable
  • Seat, air suspension, fabric, heated, low back, headrest
  • Starting motor, 24 V/4.5 kW
  • Self adjusting roller
  • Sprockets, bolt-on
  • Sprocket inner guard
  • Track roller guards, end section
  • Track shoe assembly (PLUS)
    —Heavy-Duty lubricated rotary bushing
    • D39EXi-24: 20" single grouser shoe
    • D39PXi-24: 25" single grouser shoe
  • Triple labyrinth final drive
  • Water separator
  • 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
  • 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
Support you can count on

Technology that works as hard as you do

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