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Metric
Imperial (US)
Dozers
D155PX-8 LGP
Large dozers
- Horsepower (HP) 354 HP @ 1,900 rpm
- Horsepower (kW) 264 kW @ 1 900 rpm
- Operating weight (kg) 42 102
- Operating weight (lbs) 92,820
- Blade capacity (m^3) 7.3 - 12
- Blade capacity (yd^3) 9.6 - 15.7
Torque converter dozers for your heavy jobs
For pushing massive loads on soft ground, the D155PX-8 LGP (low ground pressure). An 8-roller undercarriage with track shoe size up to 38” (965 mm) wide for outstanding traction and balance with exceptional floatation. Optional extended wear life undercarriage with 34” wide PLUS (Parallel Link Undercarriage System) rotating bushing track shoes available.
- Engineered for powerful dozing
- Excellent blade capacity
- Quiet cab with smooth ride and great visibility
Features and benefits
Custom build the dozer you need
All the dozers in the D65/85/155 family offer you outstanding power, economy and reliability. Customize yours with the blade (straight, Semi-U, Sigmadozer and Full U (D155 only)), track shoe width and horsepower combo best suited to your particular application.
Helps minimize fuel use
An advanced Tier 4 engine offers you a potent combo of power and fuel efficiency. An auto idle shutdown, adjustable from 5-60 minutes, also helps cut fuel use and emissions.
Controls help fight operator fatigue
Operators will enjoy the palm command electronic control joysticks that fit the natural relaxed shape of their hands. Auto-shift or manual-shift modes are easily selected with one push of a button for precision with less fatigue over the course of a shift.
Smooth, powerful handling
Your operators can execute smooth powerful turns with the hydrostatic steering system. It transmits engine power to both tracks without power interruption and minimizes turning radius with counter-rotation while in neutral.
Long-lasting undercarriage
Get the most from your dozer. The Parallel Link Undercarriage System (PLUS) with rotating bushings delivers up to twice the life of our conventional undercarriage with no pin and bushing turn required. Parts wear evenly and last longer before needing replacement.
Work with fuel-efficient power
Seek maximum work efficiency with a lock-up torque converter. It determines the appropriate gear based on load and conditions. The lockup mechanism then automatically transfers engine power directly to the transmission, helping boost drive train efficiency.
Help operators stay focused
Your operators perform best when they’re comfortable. That’s why they’ll love the air suspension seat with lumbar support and tilt. It’s easy for them to adjust to suit their needs, and electric heat helps them stay comfortable in the cold.
Situational awareness
A standard rear camera monitoring system displays the view behind the dozer on the large color monitor in the cab.
No-hassle DPF regeneration
Tier 4 machines use diesel particulate filters to burn off engine soot via regeneration. To help make sure it rarely impacts your operation, all D65/D85/D155 models use continuous passive regeneration, and active regeneration that typically doesn’t require the dozer to stop.
Efficient blade pitch operation
Pressing the auto-pitch switch* lets the operator toggle blade pitch position from dig to dump with no lever movements. The blade pitch control can be set to automatically return to the digging position when reverse is selected. * Requires dual tilt dozer
Ergonomic ripper controls
Operators will love the ergonomic ripper control lever that incorporates an auto-return function. It automatically raises the ripper so they can stop grappling with levers and focus on other tasks. It kicks in when travel lever is moved to reverse.
Specifications
- Full specs
- Standard equipment
- Optional equipment
Metric
Imperial (US)
Expand all
-
Angle blade
- Capacity (yd^3): 9.6
- Capacity (m^3): 7.3
- Width at cutting width (ft): 19
- Width at cutting width (mm): 5 791
- Height (mm): 1 353
- Height (ft in): 4 ft. 5 in
- Tilt, max angle: 9.5 degrees
- Tilt, max dimension (in): 38
- Tilt, max dimension (mm): 965
- Weight (kg): 6 670
- Weight (lbs): 14,700
-
Semi-u blade
- Capacity (yd^3): 12.9 - 15.7
- Capacity (m^3): 9.8 - 12.0
- Width over end bits (ft in): 15 ft. 1 in
- Width over end bits (mm): 4 598
- Weight ‘AR” spec / non ‘AR” (lbs): 12,732 / 11,114
- Weight ‘AR” spec / non ‘AR” (kg): 5 775 / 5 055
- Suspension: Oscillation-type with equalizer bar and forward mounted pivot shafts
- Track roller frame: Monocoque, high-tensile strength steel construction
- Rollers and idlers: Lubricated track rollers are rigid mounted to the track frame.
- Number of track rollers (each side): 8
- Number of shoes (each side): 45
- Number of carrier rollers (each side): 2
- Grouser height (in): 3.1
- Grouser height (mm): 80
- Shoe width (standard)(in): 38
- Shoe width (standard)(mm): 965
- Ground contact area (cm^2): 78 037
- Ground contact area (ft2): 84
- Ground pressure (with standard shoe)(ISO 16754)(psi): 7.7
- Ground pressure (with standard shoe)(ISO 16754)(kpa): 52.9
- Hydraulic system features: Standard rear Closed-center load sensing system (CLSS) designed for precise and responsive control, and for efficient simultaneous operation. High flow hydraulics for towing winch is standard. Base machine is equipped with dual tilt and pitch dozer hydraulics for semi-u blade. Angle blade is equipped with dual tilt, no pitch.
- Hydraulic control unit (U.S. gal/min): All spool control valves externally mounted beside the hydraulic tank. Variable piston pump with capacity (discharge flow) of 85.9 US gal for steering and 47.6 US gal for implement at rated engine rpm.
- Hydraulic control unit (ltr/min): All spool control valves externally mounted beside the hydraulic tank. Variable piston pump with capacity (discharge flow) of 325 L/min for steering and 180 L/min for implement at rated engine rpm.
- Relief valve setting (kg/cm^2): 280 - 390
- Relief valve setting (psi): 3,980 - 5,550
- Relief valve setting (MPa): 27.5 - 38.2
- Control valve: Spool control valve for SIGMADOZER and Semi-U tilt dozer.
-
Number of cylinders
- Blade tilt /1 (mm): 160
- Blade tilt /1 (in): 6.3
- Blade lift / 2 (mm): 110
- Blade lift / 2 (in): 4.33
-
- Blade lift: Raise, hold, lower, and float
- Blade tilt: Right, hold, and left
Positions
- Engine Model: Komatsu SAA6D140E-7**
- Dozers 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 (in): 5.51 x 6.50
- Bore x stroke (mm): 140 x 165
- Piston displacement (L): 15.24
- Piston displacement (in^3): 930
- Governor: Mid-range, electronic
- Footnote: *EPA Tier 4 Final emissions certified
-
Horsepower
- SAEJ1995 - Gross (HP): 360
- SAEJ1995 - Gross (kW): 268
- ISO 9249 / SAE J1349 - Net (HP): 354
- ISO 9249 / SAE J1349 - Gross (kW): 264
- Rated RPM: 1,900
- Fan drive type: Hydraulic
-
Lubrication system
- Filter: Full-flow
- Method: Gear pump, force lubrication
- Transmission features: Komatsu's automatic TORQFLOW transmission consists of a water-cooled, 3-element, 1-stage, 1-phase, torque converter with lockup clutch, and a planetary gear, multipledisc clutch transmission which is hydraulically actuated and force-lubricated for optimum heat dissipation. Equipped with gearshift lock lever and neutral safety switch.
-
Reverse
- 1st torqflow reverse (kph): 4.6
- 1st torqflow reverse (mph): 2.9
- 2nd torqflow reverse (mph): 4.2
- 2nd torqflow reverse (kph): 6.8
- 3rd torqflow reverse (kph): 14
- 3rd torqflow reverse (mph): 8.7
- 3rdL torqflow reverse (mph): 5.7
- 3rdL torqflow reverse (kph): 9.2
-
Forward
- 1st torqflow forward (mph): 2.4
- 1st torqflow forward (kph): 3.8
- 2nd torqflow forward (mph): 3.5
- 2nd torqflow forward (kph): 5.6
- 3rd torqflow forward (mph): 7.2
- 3rd torqflow forward (kph): 11.6
- 3rdL torqflow forward (kph): 7.5
- 3rdL torqflow forward (mph): 4.7
- Fuel tank (L): 625
- Fuel tank (US gal): 165
- Diesel Exhaust Fluid (DEF) tank (US gal): 10.3
- Diesel Exhaust Fluid (DEF) tank (L): 39
- Coolant (US gal): 27.5
- Coolant (L): 104
- Engine oil (US gal): 9.8
- Engine oil (L): 37
- Damper case (L): 1.5
- Damper case (US gal): 0.4
- Torque converter, transmission, bevel gear, and steering system (L): 90
- Torque converter, transmission, bevel gear, and steering system (US gal): 23.8
- Final drive (US gal): 8.2
- Final drive (L): 31
- Hydraulic tank (L): 95
- Hydraulic tank (US gal): 25.1
- Hydraulic oil tank (US gal): 25.1
- Hydraulic oil tank (L): 95
-
Ripper equipment (additional volume)
- Grant ripper (US gal): 9.8
- Grant ripper (L): 37
- Multi-shank ripper (L): 37
- Multi-shank ripper (US gal): 9.8
- Ground pressure (kPa): 52.9
- Ground pressure (psi): 7.67
-
Tractor weight
- Tractor weight (lbs): 85,100
- Tractor weight (kg): 38 600
-
Operating weight
- Operating weight (kg): 42 100
- Operating weight (lbs): 92,820
- Final drive features: Double-reduction, spur and planetary final drives increase tractive effort. Segmented sprockets are bolt-on for easy in-the-field replacement.
Metric
Imperial (US)
- Air cleaner, double element with dust indicator
- Alternator, 140 ampere/24V
- Backup alarm
- Batteries, 200 Ah/2 x 12V
- Battery disconnect switch
- Blade lift cylinders with double dust seal
- Color monitor, LCD
- Decelerator pedal
- Engine hood
- Engine idle auto shutdown with adjustable timer
- Engine intake centrifugal precleaner
- Engine, gull-wing side covers
- Engine shutdown secondary switch
- Exhaust pipe with raincap
- Fast fuel provision
- Fenders
- Front pull hook
- Fuel pre-filter and primary filter
- Grid heater starting aid in cold weather
- High mount foot rests
- Horn, warning
- Hydraulic driven radiator cooling fan with manual reverse clean mode
- Hydraulics for dual tilt and pitch dozer
- Hydraulics for ripper VGR/MSR
- KOMTRAX® Level 5
- Komatsu Diesel Particulate Filter (KDPF)
- Komatsu Variable Geometry Turbocharger (KVGT)
- Komatsu Selective Catalytic Reduction (SCR)
- Locks, filler caps and covers
- Oil pressure check ports for power train
- PM service connector
- Radiator mask, double door, heavy-duty, hinged, perforated
- Radiator reserve tank
- Rear cover
- ROPS Cab (3,131 lb)**
- Air conditioner/heater/defroster
--Pressurized
--Condenser remote mounted - Cab accessories
- Work lights
--2 front, hood mounted
--2 front, Cab mounted
--2 rear, fender mounter
--2 rear, Cab mounted
--1 rear, for ripper point - Seat, air suspension, fabric, heated, low back, rotates 12.5° to right, headrest
- Seat belt, 3", retractable
- Seat belt indicator
- Sealed electrical connectors
- Starting motor, 24V
- Steering system: Hydrostatic Steering System (HSS)
- Torque converter with auto lock-up
- Track roller guards, end sections
- Track shoe assembly
- Sealed and lubricated
- Transmission with auto/manual shift modes
- Underguards, heavy duty
- Hinged belly pans
- Water separator, fuel
- Wide core cooling package, 6 fins per inch spacing
- Air cleaner, double element with dust indicator
- Alternator, 140 ampere/24V
- Backup alarm
- Batteries, 200 Ah/2 x 12V
- Battery disconnect switch
- Blade lift cylinders with double dust seal
- Color monitor, LCD
- Decelerator pedal
- Engine hood
- Engine idle auto shutdown with adjustable timer
- Engine intake centrifugal precleaner
- Engine, gull-wing side covers
- Engine shutdown secondary switch
- Exhaust pipe with raincap
- Fast fuel provision
- Fenders
- Front pull hook
- Fuel pre-filter and primary filter
- Grid heater starting aid in cold weather
- High mount foot rests
- Horn, warning
- Hydraulic driven radiator cooling fan with manual reverse clean mode
- Hydraulics for dual tilt and pitch dozer
- Hydraulics for ripper VGR/MSR
- KOMTRAX® Level 5
- Komatsu Diesel Particulate Filter (KDPF)
- Komatsu Variable Geometry Turbocharger (KVGT)
- Komatsu Selective Catalytic Reduction (SCR)
- Locks, filler caps and covers
- Oil pressure check ports for power train
- PM service connector
- Radiator mask, double door, heavy-duty, hinged, perforated
- Radiator reserve tank
- Rear cover
- ROPS Cab (1420 kg)**
- Air conditioner/heater/defroster
--Pressurized
--Condenser remote mounted - Cab accessories
- Work lights
--2 front, hood mounted
--2 front, Cab mounted
--2 rear, fender mounter
--2 rear, Cab mounted
--1 rear, for ripper point - Seat, air suspension, fabric, heated, low back, rotates 12.5° to right, headrest
- Seat belt, 76 mm, retractable
- Seat belt indicator
- Sealed electrical connectors
- Starting motor, 11.0 kW
- Steering system: Hydrostatic Steering System (HSS)
- Torque converter with auto lock-up
- Track roller guards, end sections
- Track shoe assembly
- Sealed and lubricated
- Transmission with auto/manual shift modes
- Underguards, heavy duty
- Hinged belly pans
- Water separator, fuel
- Wide core cooling package, 6 fins per inch spacing
Metric
Imperial (US)
Blades
- Manual Angle Power Tilt 9.6 yd3
- Semi-U dual tilt and pitch 12.9 yd3
- Semi-U AR dual tilt and pitch 15.7 yd3
Shoes
- 38" Extreme Service, SALT
- 34" Moderate Service, PLUS
Rear Attachment
- HD long drawbar 528 lb
- HD Counterweight 9-plate with rigid drawbar, 7,860 lb
Abrasion Resistant Package
- 34" 860mm PLUS tracks
- AR steel liner on semi-u blade
- Spill guard extension on semi-u
- Grading skid plates on semi-u
- Radiator mask reinforcement
- Cooling fan hard coated steel
- Radiator core guard
- LED work lamps
- Centralized grease zerks
- Air suspension seat heated/cooled no rotate
Blades
- Manual Angle Power Tilt 7.3 m3
- Semi-U dual tilt and pitch 9.9 m3
- Semi-U AR dual tilt and pitch 12.0 m3
Shoes
- 38" Extreme Service, SALT
- 34" Moderate Service, PLUS
Rear Attachment
- HD long drawbar 240 kg
- HD Counterweight 9-plate with rigid drawbar, 3568 kg
Abrasion Resistant Package
- 34" 860mm PLUS tracks
- AR steel liner on semi-u blade
- Spill guard extension on semi-u
- Grading skid plates on semi-u
- Radiator mask reinforcement
- Cooling fan hard coated steel
- Radiator core guard
- LED work lamps
- Centralized grease zerks
- Air suspension seat heated/cooled no rotate
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