Komatsu D155AX-8 Crawler Dozer

Komatsu D155AX-8 Crawler Dozer

Komatsu D155AX-8 Crawler Dozer Information

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The new Tier 4 Final D155AX-8 dozer incorporates well proven Komatsu engine emissions technology that does not interfere with daily operation. Class leading engine horsepower, large capacity Sigmadozer blade and automatic lockup torque converter efficiently move massive amounts of material while using less fuel than prior model. The operator cab is loaded with features to help maintain operator comfort during the work day.

Standard Equipment

  • 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
  • K-bogie undercarriage
  • 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, 3,131 lb)**
  • Air conditioner/heater/defroster
    –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 3″, retractable
  • Seat belt indicator
  • Sealed electrical connectors
  • Starting motor, 11.0 kW/24V
  • Steering system: Hydrostatic Steering System (HSS)
  • Torque converter with auto lock-up
  • Track roller guards, end sections
  • Track shoe assembly
  • Sealed and lubricated
  • 610 mm 24″ extreme service shoes
  • Transmission with auto/manual shift modes
  • Underguards, heavy duty
  • Hinged belly pans
  • Water separator, fuel
  • Wide core cooling package, 6 fins per inch spacing

Optional Equipment

Shoes (optional) – Additional weight:

  • 660 mm 26″ extreme service shoes: +240 kg +530 lb
  • 710 mm 28″ single-grouser shoes: No additional

Shoes (optional) – Ground contact area:

  • 660 mm 26″ extreme service shoes: 43230 cm2 6,700 in2
  • 710 mm 28″ single-grouser shoes: 46505 cm2 7,208 in2

Variable Multi-Shank Ripper:

  • Additional weight (including hydraulic control unit): 3760 kg 8,290 lb
  • Beam length: 2320 mm 7’7″
  • Hydraulically-controlled parallelogram-type ripper with three shanks. Digging angle infinitely adjustable. Standard digging angle: 49°
  • Maximum digging depth: 900 mm 2’11”
  • Maximum lift above ground: 950 mm 3’1″

Variable Giant Ripper:

  • Additional weight (including hydraulic control unit): 2440 kg 5,380 lb
  • Beam length: 1400 mm 4’7″
  • Hydraulically-controlled parallelogram-type ripper with one shank. Digging angle infinitely adjustable. Standard digging angle: 49°
  • Maximum digging depth: 1240 mm 4’1″
  • Maximum lift above ground: 950 mm 3’1″


  • HD Counterweight 9-plate with rigid drawbar, 3568 kg 7,860 lb
  • Sigma push group (bladeless) for Allied blade

Dozer Equipment:

  • Full-U
  • Semi-U


HORSEPOWER354 @1900 rpm


BLADE CAPACITY12.3 - 15.6 yd³

List of Features

* Price, if shown, is Manufacturer's Suggested Retail Price (MSRP) and does not include government fees, taxes, dealer freight/preparation, dealer document preparation charges or any finance charges (if applicable). MSRP and/or final actual sales price will vary depending on options or accessories selected.
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Manufacturer Komatsu
Category Dozers
Subcategory Large
Model D155AX-8
Condition New
Year 2021
Hours 0
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