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Large dozer

D85EX-18

  • Horsepower 197 kW @ 1 900 rpm 264 HP @ 1,900 rpm
  • Operating weight 30 919 kg 68,165 lbs.
  • Blade capacity 7.2 m³ 9.4 yd³

Torque converter dozers for your heavy jobs

Need a larger powerful dozer that’s still cost efficient? The D85EX-18 is a great choice. You’ll appreciate its 11-liter engine, large capacity power-pitch blade, fuel efficient automatic shift transmission and economical PLUS (Parallel Link Undercarriage System) rotating bushing undercarriage option.

  • Engineered for powerful dozing
  • Excellent blade capacity
  • Quiet cab with smooth ride and great visibility
  • Automated blade control with iMC

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.

intelligent Machine Control (iMC)

With automatic dozing, rough cut to finish grade, iMC-equipped machines make every pass count. Dozers “learn” operator blade input. In select situations, operators can opt for near-100% auto control. And, iMC helps new operators get up to speed quickly.

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.

Specifications for D85EX-18

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US system Metric
Engine
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
Final Drive

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.

Hydraulic System
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
Operating Weight
Tractor weight:
Including ROPS cab, rated capacity of lubricant, hydraulic control unit, coolant, full fuel tank, operator, and standard equipment. 24 390 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. 30 920 kg
Tractor weight:
Including ROPS cab, rated capacity of lubricant, hydraulic control unit, coolant, full fuel tank, operator, and standard equipment. 53,770 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. 68,165 lbs.
Service Refill Capacities
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
Steering System

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 2.0 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 6 ft. 6 in
TORQFLOW Transmission

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
Undercarriage
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) 7
Type of shoes (standard) Single grouser
Number of shoes (each side) 41
Grouser height 72 mm
Shoe width (standard) 660 mm
Ground contact area 40 260 cm²
Ground pressure
(with dozer, cab and ROPS)
0.61 kg/cm²
59.5 kPa
Track gauge 2 000 mm
Length of track on ground 3 050 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) 7
Type of shoes (standard) Single grouser
Number of shoes (each side) 41
Grouser height 2.8 in
Shoe width (standard) 26 in
Ground contact area 6,240 in²
Ground pressure
(with dozer, cab and ROPS)
8.62 psi
Track gauge 6 ft. 7 in
Length of track on ground 10 ft.
  • Air cleaner, double element with dust indicator
  • Alternator, 90 ampere/24V
  • Auto idle shutdown function
  • Backup alarm
  • Batteries, 200 Ah/2 x 12V
  • Battery disconnect switch
  • Blade lift cylinders
  • Color monitor, LCD
  • Decelerator pedal
  • Engine hood 
  • Engine intake centrifugal precleaner
  • Engine, gull-wing side covers
  • Exhaust pipe with raincap
  • Fenders
  • Front pull hook
  • High mount foot rests
  • Horn, warning
  • Hydraulic driven radiator cooling fan with reverse clean mode
  • Hydraulics for front attachment
    --Single tilt, power pitch (EX SIGMADOZER only)
    --Single tilt, manual pitch (non-SIGMADOZER)
  • KOMTRAX® Level 5
  • Komatsu Diesel Particulate Filter (KDPF)
  • Komatsu Variable Geometry Turbocharger (KVGT)
  • Locks, filler caps and covers
  • Oil pressure check ports for power train
  • Operator ID function
  • PM service connector
  • Radiator mask, heavy-duty, hinged, perorated
  • Radiator reserve tank
  • Rear cover
  • ROPS cab**
  • 75 dB operator ear noise level
  • Air conditioner
  • Cab accessories
    --12V power supply (2 ports)
    --Cup holder
    --Rearview mirror
    --Rear view monitoring (1 camera)
    --AM/FM Radio w/remote AUX plug (3.5 mm)
  • Work lights
    --2 front, hood mounted
    --2 front, cab mounted
    --1 rear, left fender mounted
    --2 rear, cab mounted
    --1 ripper point (EX only)
  • Seat, air suspension, fabric, heated low back, rotates 12.5° to right, headrest
  • Seat belt, 76mm, retractable
  • Seat belt indicator
  • Sealed electrical connectors
  • Starting motor, 11.0 kW/24V
  • Steering system: Hydrostatic Steering System (HSS)
  • Torque converter
  • Track roller guards, center and end sections
  • Track shoe assembly
  • Heavy-Duty sealed and lubricated track
  • 660mm extreme service single grouser shoe (EX)
  • Transmission with auto/manual shift modes
  • Underguards, heavy duty
  • Hinged belly pan
  • Transmission
  • Water separator
  • Wide core cooling package

* 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)

  • Air cleaner, double element with dust indicator
  • Alternator, 90 ampere/24V
  • Auto idle shutdown function
  • Backup alarm
  • Batteries, 200 Ah/2 x 12V
  • Battery disconnect switch
  • Blade lift cylinders
  • Color monitor, LCD
  • Decelerator pedal
  • Engine hood 
  • Engine intake centrifugal precleaner
  • Engine, gull-wing side covers
  • Exhaust pipe with raincap
  • Fenders
  • Front pull hook
  • High mount foot rests
  • Horn, warning
  • Hydraulic driven radiator cooling fan with reverse clean mode
  • Hydraulics for front attachment
    --Single tilt, power pitch (EX SIGMADOZER only)
    --Single tilt, manual pitch (non-SIGMADOZER)
  • KOMTRAX® Level 5
  • Komatsu Diesel Particulate Filter (KDPF)
  • Komatsu Variable Geometry Turbocharger (KVGT)
  • Locks, filler caps and covers
  • Oil pressure check ports for power train
  • Operator ID function
  • PM service connector
  • Radiator mask, heavy-duty, hinged, perorated
  • Radiator reserve tank
  • Rear cover
  • ROPS cab**
  • 75 dB operator ear noise level
  • Air conditioner
  • Cab accessories
    --12V power supply (2 ports)
    --Cup holder
    --Rearview mirror
    --Rear view monitoring (1 camera)
    --AM/FM Radio w/remote AUX plug (3.5 mm)
  • Work lights
    --2 front, hood mounted
    --2 front, cab mounted
    --1 rear, left fender mounted
    --2 rear, cab mounted
    --1 ripper point (EX only)
  • 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, 11.0 kW/24V
  • Steering system: Hydrostatic Steering System (HSS)
  • Torque converter
  • Track roller guards, center and end sections
  • Track shoe assembly
  • Heavy-Duty sealed and lubricated track
  • 26" extreme service single grouser shoe (EX)
  • Transmission with auto/manual shift modes
  • Underguards, heavy duty
  • Hinged belly pan
  • Transmission
  • Water separator
  • Wide core cooling package

* 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)

  • Drawbar, long type
  • Hitch
  • SIGMADOZER® (EX)
  • Semi-U (EX)
  • Straight tilt frame for use with allied blades
  • Trunnions for use with allied dozer assembly
  • Track roller guard, full length 

Multi-shank ripper (for D85EX)

  • Weight
    2500 kg
  • Beam length
    2246 mm
  • Maximum lift above ground
    565 mm
  • Maximum digging depth
    655 mm
  • Drawbar, long type
  • Hitch
  • SIGMADOZER® (EX)
  • Semi-U (EX)
  • Straight tilt frame for use with allied blades
  • Trunnions for use with allied dozer assembly
  • Track roller guard, full length 

Multi-shank ripper (for D85EX)

  • Weight
    5,520 lb
  • Beam length
    7'4"
  • Maximum lift above ground
    1'10"
  • Maximum digging depth
    2'2"
Support you can count on

Technology that works as hard as you do

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Komtrax for construction equipment is Komatsu’s state of the art remote monitoring system, helping you keep track of where your machines are and how much they are working. The system seamlessly gathers important data that can help you coach operators to improve efficiencies and productivity.

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