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Mid-size dozer

D65EXi-18

  • Horsepower 162 kW @ 1 950 rpm 217 HP @ 1,950 rpm
  • Operating weight 22 054 kg 45,780 lbs.
  • Blade capacity 5.6 m³ 7.3 yd³

A workhorse for your fleet

Need an all-around workhorse designed for years of high productivity? The D65EXi-18 is tough to beat. A large capacity outside push frame semi-U blade helps make it the backbone of your dozer fleet and includes extended wear life undercarriage 24” PLUS (Parallel Link Undercarriage System) rotating bushing tracks.

  • Get new operators up to speed quickly
  • Go from mass ex to finished grading faster than ever
  • Fully integrate 3D design data into your machines
  • Empower operators to work efficiently, pass after pass

Features and benefits

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Close the operator skill gap

Machine logic allows the dozer to continuously learn the terrain and make calculated decisions for the next pass. Intelligent Machine Control helps lessen the skill gap between new and experienced operators.
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Advanced machine control

In select situations — auto stripping, rough dozing, spreading, advanced finish grading — operators can opt for nearly 100% machine control auto usage. They can even apply automatic control without having a 3D model.
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A machine that learns from the operator

Automatic functions give the dozer the ability to learn from operator's blade input, resulting in more adaptability, easier operation and less reliance on operator input.
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Outstanding blade response for finish grading

To deliver unparalleled grading performance, iMC enables the dozer to look ahead at grade transitions and alter the blade angle accordingly.

Specifications for D65EXi-18

Close all Expand all
US system Metric
Engine
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
TORQFLOW Transmission

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
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 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
Undercarriage
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)*

  D65EX-18
Number of track rollers (each side)

7

Type of shoes (standard)  MS PLUS
Number of shoes (each side)  42
Grouser height  65 mm
Shoe width (standard)  610 mm
Ground contact area
(ISO 16754) 
40 910 cm2
Ground pressure (tractor)
(ISO 16754) 
44.1 kPa
0.45 kgf/cm2
Track gauge  1 880 mm
Length of track on ground  2 970 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)*

  D65EX-18
Number of track rollers (each side)

7

Type of shoes (standard)  MS PLUS
Number of shoes (each side)  42
Grouser height  2.6 in
Shoe width (standard)  34 in
Ground contact area
(ISO 16754) 
6,341 in2
Ground pressure (tractor)
(ISO 16754) 
6.4 psi
Track gauge  6 ft. 2 in
Length of track on ground  9 ft. 9 in

*See page 17 of spec sheet for tractor/blade combinations.

Final Drive

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.

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 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
Service Refill Capacities
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 
  • 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 with lockout/tagout
  • Blade lift cylinders
  • Color monitor, LCD 
  • Decelerator pedal
  • Engine hood
  • Engine intake centrifugal precleaner
  • Engine, gull-wing side covers
  • Engine shutdown secondary switch
  • Fenders
  • Front pull hook
  • High mount foot rests
  • Horn, warning
  • Hydraulic driven radiator cooling fan with reverse clean mode
  • Hydraulics for rear equipment
  • KOMTRAX® Level 5
  • Komatsu Diesel Particulate Filter (KDPF)
  • Komatsu Variable Geometry Turbocharger (KVGT)
  • Locks, filler caps and covers
  • Muffler with curved exhaust pipe
  • Oil pressure check ports for power train
  • Oil sampling ports for Engine, Trans, Hydraulics
  • 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 with fresh air pre-cleaner
    • Cab accessories
      12V power supply (2 ports)
      -Cup holder
      -Rearview mirror
      -Rear view monitoring (1 camera)
      -Radio, Bluetooth/USB compatible
    • Shovel holder
    • Work lights, LED type 
      -2 front, hood mounted
      -2 front, cab mounted
      -1 rear, left fender mounted
      -2 rear, cab mounted
  • Seat, air suspension, fabric, heated low back, rotates 12.5° to right, headrest
  • Seat belt, 76 mm, retractable
  • Seat belt indicator
  • Sealed electrical connectors
  • Secondary engine shutoff switch
  • Starting motor,11 kW
  • Steering system: Hydrostatic Steering System (HSS)
  • Tie-off points standard ISO 14567
  • Torque converter with auto lock-up
  • Track roller guards, center and end sections
  • Track shoe assembly
    - Heavy-Duty lubricated rotary bushing (PLUS) track
    • 610 mm MS shoe (EX with outside mount blade) 
    • 760 mm MS shoe (WX with outside mount blade)
    • 760 mm MS shoe (PX PAT requires WASTE PACKAGE)
    • 915 mm MS shoe (PX with outside mount blade)
  • 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

  • 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 with lockout/tagout
  • Blade lift cylinders
  • Color monitor, LCD 
  • Decelerator pedal
  • Engine hood
  • Engine intake centrifugal precleaner
  • Engine, gull-wing side covers
  • Engine shutdown secondary switch
  • Fenders
  • Front pull hook
  • High mount foot rests
  • Horn, warning
  • Hydraulic driven radiator cooling fan with reverse clean mode
  • Hydraulics for rear equipment
  • KOMTRAX® Level 5
  • Komatsu Diesel Particulate Filter (KDPF)
  • Komatsu Variable Geometry Turbocharger (KVGT)
  • Locks, filler caps and covers
  • Muffler with curved exhaust pipe
  • Oil pressure check ports for power train
  • Oil sampling ports for Engine, Trans, Hydraulics
  • 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 with fresh air pre-cleaner
    • Cab accessories
      12V power supply (2 ports)
      -Cup holder
      -Rearview mirror
      -Rear view monitoring (1 camera)
      -Radio, Bluetooth/USB compatible
    • Shovel holder
    • Work lights, LED type 
      -2 front, hood mounted
      -2 front, cab mounted
      -1 rear, left fender mounted
      -2 rear, cab mounted
  • Seat, air suspension, fabric, heated low back, rotates 12.5° to right, headrest
  • Seat belt, 3", retractable
  • Seat belt indicator
  • Sealed electrical connectors
  • Secondary engine shutoff switch
  • Starting motor, 24V
  • Steering system: Hydrostatic Steering System (HSS)
  • Tie-off points standard ISO 14567
  • Torque converter with auto lock-up
  • Track roller guards, center and end sections
  • Track shoe assembly
    - Heavy-Duty lubricated rotary bushing (PLUS) track
    • 24" MS shoe (EX with outside mount blade) 
    • 30" MS shoe (WX with outside mount blade)
    • 30" MS shoe (PX PAT requires WASTE PACKAGE)
    • 36" MS shoe (PX with outside mount blade)
  • 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

  • Dozer assembly
  • Drawbar, long type
  • Hitch
  • Rear counterweight 850 kg 
  • Straight tilt frame for use with allied blades
  • Track roller guard, full length
  • Waste Package, available with EX semi-u, PX straight, PX PAT 

Multi-shank ripper (for D65EXi)

  • Weight
    1 920 kg 
  • Beam length
    2 170 mm 
  • Maximum lift above ground
    640 mm 
  • Maximum digging depth
    590 mm 
  • Dozer assembly
  • Drawbar, long type
  • Hitch
  • Rear counterweight 1,870 lbs.
  • Straight tilt frame for use with allied blades
  • Track roller guard, full length
  • Waste Package, available with EX semi-u, PX straight, PX PAT 

Multi-shank ripper (for D65EXi)

  • Weight
    4,230 lbs.
  • Beam length
    7'1"
  • Maximum lift above ground
    2'1"
  • Maximum digging depth
    1'11"
Support you can count on

Technology that works as hard as you do

Dozer_D71PXi_Cartersville GA_Qube_201104_3K1A2001.psd
Productivity is the key to success on your job site, and the faster your crew can reach a state of maximum productivity, the better. Now you have a powerful tool to help make that happen with Komatsu’s intelligent Machine Control (iMC). Incorporating a host of advanced, proprietary machine technology, iMC gives you the opportunity to take advantage of sophisticated, productivity-enhancing automation and cutting-edge job site design.
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Improve accuracy on your job site with Smart Construction — a suite of tech solutions that helps you optimize your operations.
Intelligent Machine Control
The first contractor to use Komatsu's revolutionary intelligent Machine Control is more efficient, productive than ever.

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