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

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Overview

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.

Power Rating

Units:
Minimum Power 74.0 bhp 55.4 bkW Less
Maximum Power 74.0 bhp 55.4 bkW Less
Rated Speed 2200 2200 Less

Emission Standards

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

General

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

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

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

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

Diameter 149 mm (5.8 in) 149 mm (5.8 in) Less
Length 509 mm (20 in) 509 mm (20 in) Less
Weight 509 mm (20 in) 509 mm (20 in) Less

Emissions

Ratings less than 55 bkW/74 bhp meet U.S. EPA Tier 4 Final, EU Stage IIIB nonroad emission standards.

Reliable, Quiet and Durable Power

World-class manufacturing capability and processes coupled with proven core engine designs assure reliability, quiet operation, and many hours of productive life.

High Performance

Leading-edge technology provides significant improvements in power, torque, fuel consumption and response. Technology includes single smart wastegated turbo systems, durable high pressure common rail technology, and closed circuit breathing system.

Fuel Efficiency

Fuel consumption optimized to match operating cycles of a wide range of equipment and applications while maintaining low operating costs.

Fuel & Oil

Tier 4 Interim or Tier 4 Final, Stage IIIB or Stage IV engines require Ultra Low Sulfur Diesel (ULSD) fuel containing a maximum of 15 ppm sulfur, and new oil formulations to support the new technology. Cat engines are designed to accommodate B20 biofuel. Your Cat dealer can provide more information regarding fuel and oil.

Broad Application Range

Industry leading range of factory configurable ratings and options for agricultural, material handling, construction, mining, aircraft ground support, and other industrial applications.

Low Cost Maintenance

Worldwide service delivers ease of maintenance and simplifies the servicing routine. Capable of optimal oil change intervals of 500 hours. Service-free through-flow diesel particulate filter (DPF) for Tier 4 Final, Stage IIIB. The S·O·S℠ program is available from your Cat dealer to determine oil change intervals and provide optimal performance.

Quality

Every Cat engine is manufactured to stringent quality standards in order to assure customer satisfaction.

World-class Product Support Offered Through Global Cat Dealer Network

  • Scheduled maintenance, including S•O•S℠ sample
  • Customer Support Agreements (CSA)
  • Caterpillar Extended Service Coverage (ESC)
  • Superior dealer service network
  • Extended dealer service network through the Cat Industrial Service Distributor (ISD) program

Tier 4 Final, Stage IIIB Aftertreatment Features

Technology and Power. The Diesel Particulate Filter (DPF) technology chosen performs through the work cycle of the engine, allowing it to work efficiently. Engine performance has been optimized to provide maximum power, and the emissions module is invisible to the operator in most duty cycles. Mounting. Multiple off and on installation options provide customers with simple and flexible solutions for many applications. Service. Through-flow DPF is service-free for the emissions life of the engine.

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

General
  • 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

Cat® Dealer Service

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