• 70,017 lbs Operating Weight
  • 264 @1900 rpm Horsepower
  • 18.4 yd³ Blade Capacity

D85EX-18 WH

The Powerful 264 HP D85EX-18 WH can be equipped with a complete waste handler guarding package. By protecting exposed components, reducing opportunity for debris to enter the engine compartment, and making it easier to clean and service, the Komatsu D85EX-18 dozer works longer in high debris applications for increased productivity compared to the standard arrangement. Maintaining a clean engine compartment is one of the challenges for dozers working in landfills. The waste handler package includes features to make the D85EX-18 easier to clean and service to maximize engine performance.


Additional Engine Hood Perforations

Additional perforated material increases air flow to the radiator and prevents large airborne materials from entering the engine compartment.

Additional Work Lights

The two hood-mounted lights are replaced with four LED work lights mounted high on the blade lift cylinders, casting light over the trash rack.

Cab Air Pre-cleaner

The optional, cab air-filtration system provides pre-cleaned, filtered air to the HVAC system. The cab is pressurized to minimize odors and dust.

Door Seal Guards

These sheet metal guards are welded to the perimeter of the engine compartment doors, providing an overlapping barrier against material intrusion into the engine compartment.

Engine Pre-cleaner with Screen

A protective screen is added to the standard centrifugal engine air pre-cleaner to remove large particles from the air before they reach the filter elements.

Engine Thermal Guard

The thermal guard covers the exhaust manifold, hot side of the turbocharger, KDPF, and SCR system, reducing the potential for combustible debris to come in contact with hot surfaces.

Front Striker Bars

Front striker bars are designed to prevent debris from riding up on the tracks and damaging the chassis or cab glass. The bolt-on design allows for easy servicing.

HD Counterweight with Rear Striker Bars

The 1682 kg 3,708 lb for the PX model and the 2000 kg 4,409 lb for the EX model counterweight optimizes machine balance for landfill applications.

Powered Engine Underguard

The electric winch located on the inside of the main frame lowers and raises the underguard, providing easy access to the engine compartment for cleaning accumulated trash.

Relocated Hydraulic Cooler

The hydraulic oil cooler is relocated to the rear to increase cooling efficiency. It features a flexible core heat exchanger for easier cleaning and maintenance.

Roof Mounted AC Condenser

The AC condenser is mounted to the roof to protect it from debris and to increase cooling efficiency.

Tank Guard

9.5 mm 0.375" thick guarding protects the sides and rear of the fuel tank and hydraulic tank from damage and debris.

Trash Rack

The see-through vertical bars of the trash rack are designed to ensure good operator visibility. The trash rack and blade are both painted matte black to reduce glare.

Two Piece Radiator Doors and Auto Reversing Fan

The two-piece radiator guard doors allow access to the standard wide-core radiator for cleaning. Adjustable fan reversing interval and duration allow the operator to concentrate on productivity, while helping to keep the radiator clean.



Komatsu SAA6D125E-7*
4-cycle, water-cooled, direct injection
Komatsu variable geometry turbocharged, air-to-air aftercooled
No. of cylinders
Bore x stroke 125 mm x 150 mm 4.49" x 5.69"
Piston displacement 11.04 ltr 674 in³
All-speed and mid-range, electronic

SAE J1995 / Gross 199 kW 267 HP
ISO 9249 / SAE J1349* / Net 197 kW 264HP
Rated rpm
1900 rpm
Fan drive type
Lubrication system:

Gear pump, force lubrication
**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.

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 ltr/min 87.4 U.S. gal/min at rated engine rpm.

Relief valve setting 22.6 MPa
3,270 psi
Control valves:

Spool control valves for 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. 24390 kg 53,770 lb
Operating weight:

Including SEMI-U (EX) or straight tilt dozer (PX), landfill counterweight, rear striker bars, standard waste handler equipment, ROPS cab, rated capacity of lubricant, hydraulic control unit, coolant, and full fuel tank. 31716 kg 69,922 lb

Service Refill Capacities

Fuel tank 470 ltr 124.1 U.S. gal
DEF tank 23.5 ltr 6.2 U.S. gal
Coolant 65 ltr 17.2 U.S. gal
Engine 38 ltr 10.0 U.S. gal
Damper case
1.6 ltr 0.42 U.S. gal
Torque converter, transmission, bevel gear, and steering system 60 ltr 15.8 U.S. gal
Final drive (each side) 26 ltr 6.9 U.S. 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. Counter rotation 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:

D85EX-18 2.0 m 6'6"
D85PX-18 2.2 m 7'3"

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 km/h
2.1 mph
4.4 km/h
2.7 mph
2nd 6.1 km/h
3.8 mph
8.0 km/h
5.0 mph
3rd L 7.8 km/h
4.8 mph
9.2 km/h
5.7 mph
3rd 10.1 km/h
6.3 mph
13.0 km/h
8.1 mph


Oscillating equalizer bar and pivot shaft
Track roller frame
Monocoque, large section, durable construction
Rollers and idlers
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)
Type of shoes (standard)
Single grouser
Number of shoes (each side)
Grouser height 72 mm 2.8"
Shoe width (standard) 660 mm 26"
Ground contact area 40260 cm² 6,240 in²
Ground pressure
(with dozer, cab and ROPS)
0.61 kg/cm²
59.5 kPa
8.62 psi
Track gauge 2000 mm 6'7"
Length of track on ground 3050 mm 10'



  • 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
  • Engine shutdown secondary switch
  • 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 rear attachment
  • 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, 76 mm 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
  • 660 mm 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)


  • Trash rack
  • Rear counterweight (with striker bars)
    • (PX) 1682 kg 3,708 lb
    • (EX) 2000 kg 4,409 lb
  • Deflector bars
  • Front striker bars
  • Rear striker bars
  • 140 Amp alternator/24 V
  • Engine air cleaner
  • Cab air cleaner
  • Tank guards
  • Roof mounted AC
  • Engine thermal wraps
  • KDPF cover
  • Relocated oil cooler
  • Additional work lights
    – 4 additional
    – cylinder hood mounted
  • Additional perforations
  • Auto reversing fan
  • 2 piece radiator door
  • Powered belly pan winch 


  • Alternator precleaner kit
  • Powered cab air precleaner
  • Track shoe hole