Need a powerful, economical dozer with outstanding floatation? You’ll appreciate the D85PX-18’s 11-liter engine, 14’ 4” straight tilt blade, fuel-efficient automatic transmission and expansive footprint for soft ground conditions. Optional extended wear life undercarriage with 36” wide PLUS (Parallel Link Undercarriage System) rotating bushing track shoes is available.
| Model | Komatsu SAA6D125E-7* |
| Type | 4-cycle, water-cooled, direct injection |
| Aspiration | Komatsu variable geometry turbocharged, air-to-air aftercooled |
| No. of cylinders | 6 |
| Bore x stroke | 125 x 150 mm |
| Piston displacement | 11.04 L |
| Governor | All-speed and mid-range, electronic |
| Horsepower: | |
| SAE J1995 / Gross | 199 kW |
| ISO 9249 / SAE J1349* / Net | 197 kW |
| Rated rpm | 1 900 rpm |
| Fan drive type | Hydraulic |
| Lubrication system: | |
| Method | Gear pump, force lubrication |
| Filter | Full-flow |
| **EPA Tier 4 Final emissions certified |
| Model | Komatsu SAA6D125E-7* |
| Type | 4-cycle, water-cooled, direct injection |
| Aspiration | Komatsu variable geometry turbocharged, air-to-air aftercooled |
| No. of cylinders | 6 |
| Bore x stroke | 4.49 x 5.69 in |
| Piston displacement | 674 in³ |
| Governor | All-speed and mid-range, electronic |
| Horsepower: | |
| SAE J1995 / Gross | 267 HP |
| ISO 9249 / SAE J1349* / Net | 264 HP |
| Rated rpm | 1,900 rpm |
| Fan drive type | Hydraulic |
| Lubrication system: | |
| Method | Gear pump, force lubrication |
| Filter | Full-flow |
| **EPA Tier 4 Final emissions certified |
Double-reduction final drive of spur and planetary gear sets to increase tractive effort and reduce gear tooth stresses for long final drive life. Segmented sprocket teeth are bolt-on for easy replacement. Triple labyrinth protects seals and improves durability.
Double-reduction final drive of spur and planetary gear sets to increase tractive effort and reduce gear tooth stresses for long final drive life. Segmented sprocket teeth are bolt-on for easy replacement. Triple labyrinth protects seals and improves durability.
| 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 331 L/min at rated engine rpm. | |
| Relief valve setting | 22.6 MPa |
| Control valves: | |
| Spool control valves for SIGMADOZER®, semi-u tilt or straight tilt dozer | |
| 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 87.4 US gpm at rated engine rpm. | |
| Relief valve setting | 3,270 psi |
| Control valves: | |
| Spool control valves for SIGMADOZER®, semi-u tilt or straight tilt dozer | |
| Blade lift | Raise, hold, lower, and float |
| Blade tilt | Right, hold, and left |
| Rear attachment | Raise, hold, and lower |
| Tractor weight: | |
| Including ROPS cab, rated capacity of lubricant, hydraulic control unit, coolant, full fuel tank, operator, and standard equipment. | 25 700 kg |
| Operating weight: | |
| Including SIGMADOZER® and fixed multi-shank ripper (EX) or straight tilt dozer and long drawbar (PX) ROPS cab, operator, standard equipment, rated capacity of lubricant, hydraulic control unit, coolant, and full fuel tank. | 28 940 kg |
| Tractor weight: | ||
| Including ROPS cab, rated capacity of lubricant, hydraulic control unit, coolant, full fuel tank, operator, and standard equipment. | 56,660 lbs. | |
| Operating weight: | ||
| Including SIGMADOZER® and fixed multi-shank ripper (EX) or straight tilt dozer and long drawbar (PX) ROPS cab, operator, standard equipment, rated capacity of lubricant, hydraulic control unit, coolant, and full fuel tank. | 63,800 lbs. |
| Fuel tank | 470 L | |
| DEF tank | 23.5 L | |
| Coolant | 65 L | |
| Engine | 38 L | |
| Damper case | 1.6 L | |
| Torque converter, transmission, bevel gear, and steering system | 60 L | |
| Final drive (each side) | 36 L | |
| Hydraulic oil capacity (refill): | 69 L | |
| Ripper equipment (additional volume): | ||
| Multi-shank ripper | 11 L | |
| Fuel tank | 124.1 US gal |
| DEF tank | 6.2 US gal |
| Coolant | 17.2 US gal |
| Engine | 10.0 US gal |
| Damper case | 0.42 US gal |
| Torque converter, transmission, bevel gear, and steering system | 15.8 US gal |
| Final drive (each side) | 9.5 US gal |
| Hydraulic oil capacity (refill): | 18.2 US gal |
| Ripper equipment (additional volume): | |
| Multi-shank ripper | 2.9 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 left to make a left turn. Tilt it to the right for a right turn.
Hydrostatic Steering System (HSS) is powered by steering planetary units and an independent hydraulic pump and motor. Counterrotation turns are also available. Wet, multiple-disc, pedal-controlled service brakes are spring-actuated and hydraulically released. Gear shift lock lever also applies parking brake.
| Minimum turning radius | 2.2 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 left to make a left turn. Tilt it to the right for a right turn.
Hydrostatic Steering System (HSS) is powered by steering planetary units and an independent hydraulic pump and motor. Counterrotation turns are also available. Wet, multiple-disc, pedal-controlled service brakes are spring-actuated and hydraulically released. Gear shift lock lever also applies parking brake.
| Minimum turning radius | 7 ft. 3 in |
Komatsu TORQFLOW transmission consists of a water-cooled, 3-element, 1-stage, 1-phase and a planetary gear, multipledisc 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 | 3.3 kph | 4.4 kph |
| 2nd | 6.1 kph | 8.0 kph |
| 3rd L | 7.8 kph | 9.2 kph |
| 3rd | 10.1 kph | 13.0 kph |
Komatsu TORQFLOW transmission consists of a water-cooled, 3-element, 1-stage, 1-phase and a planetary gear, multipledisc 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 | 2.1 mph | 2.7 mph |
| 2nd | 3.8 mph | 5.0 mph |
| 3rd L | 4.8 mph | 5.7 mph |
| 3rd | 6.3 mph | 8.1 mph |
| Suspension | Oscillating equalizer bar and pivot shaft |
| Track roller frame | Monocoque, large section, durable construction |
| Rollers and idlers | Lubricated |
| Track shoes | Lubricated tracks. Unique seals prevent entry of foreign abrasive material into pin to bushing clearances to provide extended service life. 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) | 41 |
| Grouser height | 72 mm |
| Shoe width (standard) | 910 mm |
| Ground contact area (ISO 16754) |
70 780 cm² |
| Ground pressure (tractor) (ISO 16754) |
0.36 kg/cm² 36 kPa |
| Track gauge | 2 250 mm |
| Length of track on ground | 3 480 mm |
| Suspension | Oscillating equalizer bar and pivot shaft |
| Track roller frame | Monocoque, large section, durable construction |
| Rollers and idlers | Lubricated |
| Track shoes | Lubricated tracks. Unique seals prevent entry of foreign abrasive material into pin to bushing clearances to provide extended service life. 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) | 41 |
| Grouser height | 2.8 in |
| Shoe width (standard) | 36 in |
| Ground contact area (ISO 16754) |
10,970 in² |
| Ground pressure (tractor) (ISO 16754) |
5.2 psi |
| Track gauge | 7 ft. 5 in |
| Length of track on ground | 11.5 ft. |
* Dozer assembly and rear mounted equipment are not included in base machine standard equipment
** 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 standard equipment
** Cab meets OSHA/MSHA ROPS and FOPS Level 2 standards (ROPS standards ISO 3471, SAE J/ISO 3471; FOPS standards ISO 3449)