On-Site Magazine

Komatsu introduced new crawler dozer

By On-Site Magazine   

Construction Equipment crawler crawler dozer dozer grading Komatsu


Komatsu America Corp., has introduced the D39EX/PX-24 crawler dozer, a smooth, powerful, quiet machine for grading across a wide range of applications.

Under The Hood

  • A 3.26 L, 105 HP, EPA Tier 4 Final certified, SAA4D95E-7 engine offers the same power, while increasing fuel efficiency with the addition of the Selective Catalytic Reduction (SCR) system and Diesel Exhaust Fluid (DEF).
  • A new water cooled, Variable Flow Turbocharger, provides added durability and excellent engine response.
  • The Komatsu Diesel Oxidation Catalyst provides 98% passive regeneration and does not interfere with machine operation.
  • New auto-idle shutdown and economy modes that help reduce idle time and save fuel.

Machine Performance Enhancements

  • New standard, operator-selectable, automatic reverse grading mode enables automatic blade control, per customer feedback.
  • New Triple Labyrinth final drive and cover design provide improved protection from mud and debris.


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