KOMATSU D65EX-18
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2024
Komastu
D65EX-18
New
Ontario
Torque converter dozers for your heavy jobs
Need an all-around workhorse designed for years of high productivity? The D65EX-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.
- Engineered for powerful dozing
- Excellent blade capacity
- Quiet cab with smooth ride and great visibility
- Automated blade control with iMC
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 | 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 | 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 |
Final drive
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 | 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 | 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.
Service refill capacities
| 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 |
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 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 |
- 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 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"
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.