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.
| 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 |
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 |
| 3rd | 0–8.5 kph | 0–8.5 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 |
| 3rd | 0–5.3 mph | 0–5.3 mph |
| Travel speed (variable mode) |
0–5.3 mph | 0–5.3 mph |
*Quick shift speeds are adjustable in the monitor.
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.
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.
| 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 / 0.73 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 | 3,708 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 |
| 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 |
| Tractor weight: Including ROPS cab, U frame for power angle tilt dozer, rated capacity of lubricant, coolant, full fuel tank, operator, and standard equipment. |
8 790 kg |
| Operating weight: Operating weight: Including power angle tilt dozer, ROPS cab, operator, standard equipment, rated capacity of lubricant, coolant, and full fuel tank. |
9 930 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. |
19,379 lbs. |
| Operating weight: Operating weight: Including power angle tilt dozer, ROPS cab, operator, standard equipment, rated capacity of lubricant, coolant, and full fuel tank. |
21,891 lbs. |
* 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)
* 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)