Move heavy loads in soft or wet conditions. The D65PX-18’s long track/low ground pressure offers outstanding flotation and extended wear life undercarriage with the 36” wide Parallel Link Undercarriage System (PLUS) rotating bushing track shoes. Fine tune it with a choice of blade options.
| Model | Komatsu SAA6D114E-6* |
| Type | 4-cycle, water-cooled, direct injection |
| Aspiration | Komatsu variable geometry turbocharged, air-to-air aftercooled |
| Number of cylinders | 6 |
| Bore x stroke | 114 x 144.5 mm |
| Piston displacement | 8.85 L |
| Governor | All-speed and mid-range, electronic |
| Horsepower: | |
| SAE J1995 - Gross | 164 kW |
| ISO 9249 / SAE J1349 - Net | 162 kW |
| Rated rpm | 1 950 rpm |
| Fan drive type | Hydraulic |
| Lubrication system: | |
| Method | Gear pump, force lubrication |
| Filter | Full-flow |
| *EPA Tier 4 Final emissions certified |
| Model | Komatsu SAA6D114E-6* |
| Type | 4-cycle, water-cooled, direct injection |
| Aspiration | Komatsu variable geometry turbocharged, air-to-air aftercooled |
| Number of cylinders | 6 |
| Bore x stroke | 4.49 x 5.69 in |
| Piston displacement | 540 in³ |
| Governor | All-speed and mid-range, electronic |
| Horsepower: | |
| SAE J1995 - Gross | 220 HP |
| ISO 9249 / SAE J1349 - Net | 217 HP |
| Rated rpm | 1,950 rpm |
| Fan drive type | Hydraulic |
| Lubrication system: | |
| Method | Gear pump, force lubrication |
| Filter | Full-flow |
| *EPA Tier 4 Final emissions certified |
Double-reduction planetary gear final drives increase drawbar pull and reduce stresses for longer life. Segmented sprocket teeth are bolt-on for easy replacement. Triple labyrinth housing protects the final drive seals.
Double-reduction planetary gear final drives increase drawbar pull and reduce stresses for longer life. Segmented sprocket teeth are bolt-on for easy replacement. Triple labyrinth housing protects the final drive seals.
Closed-center load sensing system (CLSS) designed for precise and responsive control, and for efficient simultaneous operation.
Hydraulic control units:
All spool valves externally mounted beside the hydraulic tank. Piston type hydraulic pump with capacity (discharge flow) of 248 L/min 65.5 US gpm at rated engine rpm.
| Relief valve setting | 27.9 MPa / 285 kg/cm² |
| Control valves: | |
| Spool control valves for SIGMADOZER® or straight tilt dozer | |
| Positions: | |
| Blade lift | Raise, hold, lower, and float |
| Blade tilt | Right, hold, and left |
| Rear attachment | Raise, hold, and lower |
Closed-center load sensing system (CLSS) designed for precise and responsive control, and for efficient simultaneous operation.
Hydraulic control units:
All spool valves externally mounted beside the hydraulic tank. Piston type hydraulic pump with capacity (discharge flow) of 65.5 US gpm at rated engine rpm.
| Relief valve setting | 4,050 psi |
| Control valves: | |
| Spool control valves for SIGMADOZER® or straight tilt dozer | |
| Positions: | |
| Blade lift | Raise, hold, lower, and float |
| Blade tilt | Right, hold, and left |
| Rear attachment | Raise, hold, and lower |
| Fuel tank | 415 L |
| DEF tank | 23.5 L |
| Coolant | 49 L |
| Engine | 30.5 L |
| Torque converter, transmission, bevel gear, and steering system |
48 L |
| Final drive (each side) |
27 L |
| Fuel tank | 109.6 US gal |
| DEF tank | 6.2 US gal |
| Coolant | 12.9 US gal |
| Engine | 8.1 US gal |
| Torque converter, transmission, bevel gear, and steering system |
12.7 US gal |
| Final drive (each side) |
7.1 US gal |
Palm Command Control System (PCCS) lever controls for all directional movements. Pushing the PCCS lever forward results in forward machine travel, while pulling it rearward
reverses the machine. Simply tilt the PCCS lever to the left for a left turns, tilt it right for right turns.
Hydrostatic Steering System (HSS) power has been increased 25% by a larger HSS motor, greater hydraulic pump flow, and more engine power while steering. The result is more powerful turns and quicker counter-rotation. Wet, multiple-disc, pedalcontrolled service brakes are spring-actuated and hydraulically released. Gear shift lock lever also applies parking brake.
| Minimum turning radius: | |
| D65EX-18 | 1.9 m |
| D65EXi-18 | 1.9 m |
| D65PX-18 | 2.2 m |
| D65PXi-18 | 2.2 m |
| D65WX-18 | 2.1 m |
Palm Command Control System (PCCS) lever controls for all directional movements. Pushing the PCCS lever forward results in forward machine travel, while pulling it rearward
reverses the machine. Simply tilt the PCCS lever to the left for a left turns, tilt it right for right turns.
Hydrostatic Steering System (HSS) power has been increased 25% by a larger HSS motor, greater hydraulic pump flow, and more engine power while steering. The result is more powerful turns and quicker counter-rotation. Wet, multiple-disc, pedalcontrolled service brakes are spring-actuated and hydraulically released. Gear shift lock lever also applies parking brake.
| Minimum turning radius: | |
| D65EX-18 | 6 ft. 3 in |
| D65EXi-18 | 6 ft. 3 in |
| D65PX-18 | 7 ft. 3 in |
| D65PXi-18 | 7 ft. 3 in |
| D65WX-18 | 6 ft. 11 in |
Komatsu TORQFLOW transmission consists of a water-cooled, 3-element, 1-stage, 2-phase, torque converter with lockup clutch, and a planetary gear, multiple-disc clutch transmission which is electronically controlled, hydraulically actuated and force-lubricated for optimum heat dissipation. Shift lock lever and neutral safety switch.
| Travel speed | Forward | Reverse |
| 1st | 3.7 kph | 4.5 kph |
| 2nd | 5.6 kph | 6.7 kph |
| 3rdL | 7.3 kph | 8.7 kph |
| 3rd | 11.3 kph | 13.6 kph |
Komatsu TORQFLOW transmission consists of a water-cooled, 3-element, 1-stage, 2-phase, torque converter with lockup clutch, and a planetary gear, multiple-disc clutch transmission which is electronically controlled, hydraulically actuated and force-lubricated for optimum heat dissipation. Shift lock lever and neutral safety switch.
| Travel speed | Forward | Reverse |
| 1st | 2.3 mph | 2.8 mph |
| 2nd | 3.5 mph | 4.2 mph |
| 3rdL | 4.5 mph | 5.4 mph |
| 3rd | 7.0 mph | 8.5 mph |
| Suspension | Oscillating equalizer bar and pivot shaft |
| Track roller frame | Monocoque, large section, durable construction |
| Rollers and idlers | Lubricated |
| Track shoes | 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. |
Tractor for inside mounted blade (Requires Waste Package)*
| D65PX-18 | |
| Number of track rollers (each side) |
8 |
| Type of shoes (standard) | ES PLUS clipped |
| Number of shoes (each side) | 45 |
| Grouser height | 65 mm |
| Shoe width (standard) | 760 mm |
| Ground contact area (ISO 16754) |
55 605 cm2 |
| Ground pressure (tractor) (ISO 16754) |
38 kPa 0.39 kgf/cm2 |
| Track gauge | 2 230 mm |
| Length of track on ground | 3 275 mm |
*See page 17 of spec sheet for tractor/blade combinations.
| Suspension | Oscillating equalizer bar and pivot shaft |
| Track roller frame | Monocoque, large section, durable construction |
| Rollers and idlers | Lubricated |
| Track shoes | 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. |
Tractor for inside mounted blade (Requires Waste Package)*
| D65PX-18 | |
| Number of track rollers (each side) |
8 |
| Type of shoes (standard) | ES PLUS clipped |
| Number of shoes (each side) | 45 |
| Grouser height | 2.6 in |
| Shoe width (standard) | 30 in |
| Ground contact area (ISO 16754) |
8,619 in2 |
| Ground pressure (tractor) (ISO 16754) |
5.51 psi |
| Track gauge | 7 ft. 4 in |
| Length of track on ground | 10 ft. 9 in |
*See page 17 of spec sheet for tractor/blade combinations.
* Dozer assembly and rear mounted equipment are not included in base machine standard equipment
** Cab meets OSHA/MSHA ROPS and FOPS Level 2 standards
* Dozer assembly and rear mounted equipment are not included in base machine standard equipment
** Cab meets OSHA/MSHA ROPS and FOPS Level 2 standards