C9.3 ACERT Tier 4 Final/Stage IV Engine

Caterpillar introduces the Tier 4 Final/Stage IV version of its Cat C9.3 ACERT engine featuring a power rating of 300 to 400 hp.

C9 10058135
Caterpillarinc 10055176

Caterpillar Inc. introduces the next generation of the Cat C9.3 ACERT industrial engine which is designed to meet U.S. EPA Tier 4 Final/EU Stage IV emission standards. 

  • Six cylinder, 9.3 liter platform
  • Produces good power density with ratings from 300 to 400 hp (224 to 298 kW)
  • Includes robust, fully-integrated Clean Emission Module (CEM) featuring a diesel oxidation catalyst (DOC), diesel particulate filter (DPF) and selective catalytic reduction (SCR) technology
  • SCR technology reduces NOx
  • Cat common rail fuel system and new aftertreatment technology improves fuel consumption by up to 4% compared to Tier 4 Interim/Stage IIIB model 
  • CEM simplifies OEM aftertreatment installation with a flexible design that allows mounting in horizontal or vertical configurations for easy transition from Tier 4 Interim to Tier 4 Final 
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