C3.4B Industrial Power Unit

C3.4B, Less than 56 kW (75 hp)

C3.4B, Less than 56 kW (75 hp)

Features At A Glance

Reliable, Quiet and Durable Power
High Performance
Fuel Efficiency
Fuel & Oil
Broad Application Range
World-class Product Support Offered Through Global Cat Dealer Network

Product Specifications for C3.4B, Less than 56 kW (75 hp)

Power Rating

Emission Standards


Power Unit Dimensions

Aftertreatment Dimensions

Aftertreatment Dimensions*

C3.4B, Less than 56 kW (75 hp) Standard Equipment

Air Inlet System

  • Standard air cleaners

Control System

  • Full electronic control system
  • Fully integrated, engine-mounted electronic control unit
  • Waterproof connectors and wiring looms
  • Flexible and configurable software features and J1939 standard communications I/O

Flywheels and Flywheel Housing

  • SAE3 configuration

Fuel System

  • Engine-mounted fuel filters
  • Electronic high pressure common rail fuel pump and injectors

Lube System

  • Lubricating oil filters and breathers


  • Cold start capability to -20° C (-4° F)
  • Paint: Caterpillar yellow, with optional colors available at request

U.S. EPA Tier 4 Final, EU Stage IIIB Aftertreatment/Clean Emissions Control Equipment

  • Through Flow Diesel Particulate Filter (DPF)
  • Diesel Oxidation Catalyst (DOC)
  • Flex pipe connection kit with straight and 90° options for flexibility

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