• Banner
Industrial Diesel Power Units - Highly Regulated

Cat® industrial engines are ready for your application. These engines deliver the unsurpassed reliability, durability, fuel efficiency, and low cost of ownership you have come to expect from Caterpillar. And our world-class product support will never let you down. All this adds up to a powerful advantage for you. Every Cat industrial diesel and gas engine comes with 75 years of engine experience. Our world-class product line of high-speed and medium-speed industrial engines in a wide range of applications offer power solutions for the most demanding installations and the harshest environments. With power options from 8.2 to 6,100 bkW (11 to 8,180 bhp), Cat industrial diesel and gas engines offer the widest power range in the industry.

Cat® C3.4B Industrial Power Unit

The Cat® C3.4B Industrial Power Unit is offered at 55.4 bkW (74.3 bhp) @ 2200 rpm, which meets U.S. EPA Tier 4 Final, EU Stage IIIB nonroad emission standards. Conveniently pre-configured for a wide range of applications, the Cat Industrial Power Unit is a complete power package containing a radiator, flywheel, alternator and alternator wiring completely pre-assembled for fast, straightforward installation in a number of OEM, customer and packager applications. These fuel efficient units are ready made for irrigation, industrial, mining and other pump applications.

  • Specification Summary

  • Minimum Power 55.4 bkW
  • Maximum Power 55.4 bkW
  • Frequency 2200
  • Emissions Meets U.S. EPA Tier 4 Final, EU Stage IIIB nonroad standards

Product Details

Power Rating

Minimum Power 55.4 bkW
Maximum Power 55.4 bkW
Frequency 2200

Emission Standards

Emissions Meets U.S. EPA Tier 4 Final, EU Stage IIIB nonroad standards

General

Engine Configuration In-Line 4, 4-Stroke-Cycle Diesel
Bore 99 mm (3.9 in)
Stroke 110 mm (4.3 in)
Displacement 3.4 L (207.5 in³)
Aspiration Turbocharged
Compression Ratio 17:1
Rotation (from flywheel end) Counterclockwise

Power Unit Dimensions (Approximate. Final dimensions dependent on selected options)

Length 1242 mm (48.9 in)
Width 705 mm (27.7 in)
Height 957 mm (37.6 in)
Weight - Approximate, Net Dry (Standard configuration without oil, cooling, clutch, compressor, A/C) 359 kg (791.5 lb)

Aftertreatment Dimensions (Approximate. Final dimensions dependent on selected options)

Diameter 149 mm (5.8 in)
Weight 509 mm (20 in)
  • 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
  • General
    •  Cold start capability to -20° C (-4° F)
    •  Paint: Caterpillar yellow, with optional colors available at request
  • 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
      Built for it