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Standard Features
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The D155AX-7 is a dozer that bridges the gap between contractor site prep dozers and large contractor production/mining dozers. The Tier 4 interim D155AX-7 has the precise and responsive hydraulic control and smooth turning of hydrostatic steering of smaller dozers for grading and big dozer features like a lock-up torque converter, Unique, high production Sigma dozer blade and K-bogie oscillating undercarriage. D155AX-7 Walkaround


Model Year
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31000 kg (68,350 lb) tractor
39500 kg (87,100 lb) operating
Fuel Tank Capacity
625 ltr (165 U.S. gal)


Engine Make
Engine Model
Engine Type
Direct injection
Gross Horsepower
268 kW (360 HP)
Net Horsepower
264 kW (354 HP)
Bore x Stroke
140 mm x 165 mm (5.51 in x 6.50 in)
15.24 ltr (930 in³)

Standard Features

 Air cleaner double element with dust indicator  
Standard Features  
 Alternator 90 ampere 24V  
 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  
 Fast fuel provision  
 Front pull hook  
 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 4  
 K bogie undercarriage  
 Komatsu Diesel Particulate Filter KDPF  
 Komatsu Variable Geometry Turbocharger KVGT  
 Locks filler caps and covers  
 Oil pressure check ports for power train  
 PM service connector  
 Radiator mask heavy duty hinged perforated  
 Radiator reserve tank  
 Rear cover  
 ROPS cab 700 kg 1,545 lb  
 Air conditioner Pressurized  
 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  
 Seat air suspension fabric heated low back rotates 15 to right headrest  
 Seat belt 76 mm 3 retractable  
 Seat belt indicator  
 Sealed electrical connectors  
 Secondary engine shutoff switch  
 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 pan  
 Water separator fuel  
 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  


 Shoes Additional weight  
 26 660 mm extreme service shoes 2,070 lb 940 kg  
 28 710 mm single grouser shoes 1,370 lb 620 kg  
 Shoes Ground contact area  
 26 660 mm extreme service shoes 6,700 in 43230 cm  
 28 710 mm single grouser shoes 7,208 in 46505 cm  
 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  
 Additional rear light for ripper point  
 Drawbar long type  
 Drawbar Dual tilt blade hydraulics  
 Guarding rear screen  
 HD Counterweight with rigid drawbar 3148 kg 6,940 lb  
 Single tilt blade hydraulics  
 Working light for ripper  
 Dozer Equipment  
 Full U  
 Semi U  

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*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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