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Cat® C3.4B Industrial Power Unit

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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.

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 informatio...

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.

World-class Product Support Offered Through Global Cat Dealer Network

Scheduled maintenance, including SOS℠ 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

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

Fuel Efficiency

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

Fuel & 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.

World-class Product Support Offered Through Global Cat Dealer Network

Scheduled maintenance, including SOS℠ 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

Power Rating

Minimum Power: 74bhp
Maximum Power: 74bhp
Rated Speed: 2200
Minimum Power: 74HP
Maximum Power: 74HP
Rated Speed: 2200
Maximum Torque: 234.5lb-ft @ 1600 rpm

Emission Standards

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

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
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: 17.0:1
Rotation from Flywheel End: Counterclockwise
Bore: 3.9in
Stroke: 4.3in
Displacement: 207.5in³
Aftertreatment: DOC+SCR

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

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

Power Unit Dimensions - Approximate

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

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

Power Unit Dimensions

Length: 48.9in
Width: 27.7in
Height: 37.6in
Weight: 792lb

Aftertreatment Dimensions

Length: 20in

Aftertreatment Dimensions*

Diameter: 5.8in

Standard/Optional Features

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

Optional Equipment:

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