Efficient fuel consumption in a mid-size dozer with the updated D61PX-24. This mid-size dozer provides your operator exceptional blade visibility and comes with a parallel link undercarriage system for long undercarriage life.
| Model | Komatsu SAA6D107E-3* |
| Type | 4-cycle, water-cooled, direct injection |
| Aspiration | Komatsu Variable Geometry Turbocharged, air-to-air aftercooled, cooled EGR |
| Number of cylinders | 6 |
| Bore x stroke | 107 x 124 mm |
| Piston displacement | 6.69 L |
| Governor | All-speed and mid-range, electronic |
| Horsepower: | |
| SAE J1995 - Gross | 127 kW |
| ISO 9249 / SAE J1349 - Net | 125 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 SAA6D107E-3* |
| Type | 4-cycle, water-cooled, direct injection |
| Aspiration | Komatsu Variable Geometry Turbocharged, air-to-air aftercooled, cooled EGR |
| Number of cylinders | 6 |
| Bore x stroke | 4.21 x 4.88 in |
| Piston displacement | 408 in³ |
| Governor | All-speed and mid-range, electronic |
| Horsepower: | |
| SAE J1995 - Gross | 170 HP |
| ISO 9249 / SAE J1349 - Net | 168 HP |
| Rated rpm | 2,200 rpm |
| Fan drive type | Hydraulic |
| Lubrication system: | |
| Method | Gear pump, force lubricationn |
| Filter | Full-flow |
| *EPA Tier 4 Final emissions certified |
Dual-path, hydrostatic transmission provides infinite speed changes up to 9.0 km/h 5.6 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 | 0-3.4 kph | 0-4.1 kph |
| 2nd | 0-5.6 kph | 0-6.5 kph |
| 3rd | 0-9.0 kph | 0-9.0 kph |
| Travel speed (variable mode) | 0-9.0 kph | 0-9.0 kph |
*Quick shift speeds are adjustable in the monitor.
Dual-path, hydrostatic transmission provides infinite speed changes up to 9.0 km/h 5.6 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 | 0-5.6 mph | 0-5.6 mph |
| Travel speed (variable mode) | 0-5.6 mph | 0-5.6 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 damaged by debris. Bolt-on sprocket for easy displacement.
In-shoe mounted axial piston type travel motors with integrated two-stage planetary gear reduction. Compact in-shoe mount reduces risk of damaged by debris. Bolt-on sprocket for easy displacement.
PCCS joystick control for all directional movements. Pushing the joystick forward results in forward machine travel, while pulling it backward 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. HST eliminates steering clutches and brakes, providing smooth powerful turns. Fully electronic control enables smooth control. The PCCS utilizes shift buttons to increase and decrease speed.
| Minimum turning radius | 2.3 m |
PCCS joystick control for all directional movements. Pushing the joystick forward results in forward machine travel, while pulling it backward 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. HST eliminates steering clutches and brakes, providing smooth powerful turns. Fully electronic control enables smooth control. The PCCS utilizes shift buttons to increase and decrease speed.
| Minimum turning radius | 91 in |
Suspension: Oscillating-type with equalizer bar and pivot shafts
Track roller frame: Monocoque, large section, durable construction
Rollers and idlers: Lubricated track rollers
Lubricated tracks
Parallel Link Undercarriage System (PLUS) with lubricated rotating bushings for extended system wear life and lower maintenance costs. Track tension is easily adjusted with grease gun.
| Number of track rollers (each side) | 8 |
| Type of shoes (standard) | Single grouser |
| Number of shoes (each side) | 46 |
| Grouser height | 57.5 mm |
| Shoe width (standard) | 860 mm |
| Ground contact area | 54 440 cm² |
| Ground pressure (with dozer, ROPS canopy): |
31.7 kPa 0.32 kgf/cm² |
| Track gauge | 2 130 mm |
| Length of track on ground | 3 165 mm |
Suspension: Oscillating-type with equalizer bar and pivot shafts
Track roller frame: Monocoque, large section, durable construction
Rollers and idlers: Lubricated track rollers
Lubricated tracks
Parallel Link Undercarriage System (PLUS) with lubricated rotating bushings for extended system wear life and lower maintenance costs. Track tension is easily adjusted with grease gun.
| Number of track rollers (each side) | 8 |
| Type of shoes (standard) | Single grouser |
| Number of shoes (each side) | 46 |
| Grouser height | 2.3 in |
| Shoe width (standard) | 34 in |
| Ground contact area | 8,438 in² |
| Ground pressure (with dozer, ROPS canopy): |
4.60 psi |
| Track gauge | 7 ft. 0 in |
| Length of track on ground | 10 ft. 5 in |
| Coolant | 45 L |
| Fuel tank | 372 L |
| Engine oil | 27 L |
| Hydraulic tank | 101 L |
| Final drive (each side) | 8.1 L |
| DEF tank | 20.6 L |
| Coolant | 11.9 US gal |
| Fuel tank | 98.3 US gal |
| Engine oil | 7.2 US gal |
| Hydraulic tank | 26.7 US gal |
| Final drive (each side) | 2.2 US gal |
| DEF tank | 5.4 US gal |
| Tractor weight: Including ROPS (ISO 3471) cab, C frame for PAT dozer, rated capacity of lubricant, coolant, full fuel tank, operator and standard equipment. |
18 320 kg |
| Operating weight: Including PAT dozer, ROPS (ISO 3471) cab, operator, standard equipment, rated capacity of lubricant, coolant and full fuel tank. |
19 460 kg |
| Tractor weight: Including ROPS (ISO 3471) cab, C frame for PAT dozer, rated capacity of lubricant, coolant, full fuel tank, operator and standard equipment. |
40,389 lbs. |
| Operating weight: Including PAT dozer, ROPS (ISO 3471) cab, operator, standard equipment, rated capacity of lubricant, coolant and full fuel tank. |
42,902 lbs. |
Closed-center Load Sensing System (CLSS) designed for precise and responsive control, and for efficient simultaneous operation.
Hydraulic control unit:
All spool control valves externally mounted remote to the hydraulic tank. Piston-type hydraulic pump with capacity (discharge flow) of 171 L/min / 45 US gpm at rated engine rpm.
| Relief valve setting | 280 kg/cm² 27.4MPa |
| Hydraulic cylinders | Double-acting, piston type |
| Hydraulic cylinders / Number of cylinders | Bore |
| Blade lift / 2 | 100 mm |
| Blade tilt / 1 | 120 mm |
| Blade angle / 2 | 110 mm |
| Hydraulic oil capacity (refilling): | |
| Power angle tilt dozer | 101 L |
| Control valves: | |
| 3-spool control valve for Power Angle Tilt dozer | |
| Positions: | |
| Blade lift | Raise, hold, lower, and float |
| Blade tilt | Right, hold, and left |
| Blade angle | Right, hold, and left |
| Additional control valve required for ripper | |
| Positions: | |
| Ripper lift | Raise, hold, and lower |
Closed-center Load Sensing System (CLSS) designed for precise and responsive control, and for efficient simultaneous operation.
Hydraulic control unit:
All spool control valves externally mounted remote to the hydraulic tank. Piston-type hydraulic pump with capacity (discharge flow) of 171 L/min / 45 US gpm at rated engine rpm.
| Relief valve setting | 3,974 psi |
| Hydraulic cylinders | Double-acting, piston type |
| Hydraulic cylinders / Number of cylinders | Bore |
| Blade lift / 2 | 3.9 in |
| Blade tilt / 1 | 4.7 in |
| Blade angle / 2 | 4.3 in |
| Hydraulic oil capacity (refilling): | |
| Power angle tilt dozer | 26.7 US gal |
| Control valves: | |
| 3-spool control valve for Power Angle Tilt dozer | |
| Positions: | |
| Blade lift | Raise, hold, lower, and float |
| Blade tilt | Right, hold, and left |
| Blade angle | Right, hold, and left |
| Additional control valve required for ripper | |
| Positions: | |
| Ripper lift | Raise, hold, and lower |
* Dozer assembly and rear mounted equipment are not included in base machine standard equipment
** Cab meets ROPS and FOPS Level 2 standards
* Dozer assembly and rear mounted equipment are not included in base machine standard equipment
** Cab meets ROPS and FOPS Level 2 standards
