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

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

The Cat® C3.4B Industrial Power Unit is offered at 75-86 bkW (100-115 bhp), which meets U.S. EPA Tier 4 Final, EU Stage IV 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.

Features At A Glance

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.

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

Full Specifications Standard Equipment

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

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US
Metric

Power Rating

Maximum Power	115 HP 86 kW
Maximum Torque	310 lb-ft @ 1400 rpm 420 Nm @ 1400 rpm
Rated Speed	2200 2200
Minimum Power	100 HP 74.5 kW

Emission Standards

Emissions

U.S. EPA Tier 4 Final U.S. EPA Tier 4 Final

General

Engine Configuration	In-Line 4, 4-Stroke-Cycle Diesel In-Line 4, 4-Stroke-Cycle Diesel
Bore	3.9 in 99 mm
Stroke	4.3 in 110 mm
Displacement	207.5 in³ 3.4 l
Compression Ratio	17.0:1 17.0:1
Aspiration	Turbocharged Aftercooled (TA) Turbocharged Aftercooled (TA)
Rotation from Flywheel End	Counterclockwise Counterclockwise
Aftertreatment	DOC+SCR DOC+SCR

Power Unit Dimensions

Length	40.7 in 1252 mm
Width	27.7 in 705 mm
Height	49.3 in 1033 mm
Weight	897 lb 407 kg

C3.4B, Greater 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 IV Aftertreatment/Clean Emissions Control Equipment

Diesel Oxidation Catalyst (DOC)

Selective Catalytic Reduction (SCR)

SCR Auxiliaries are available in a range of tanks and heated lines

See how C3.4B, Greater than 56 kW (75 hp) compares against frequently compared products.

US
Metric

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

Maximum Power: 115 HP; 86 kW
Maximum Torque: 310 lb-ft @ 1400 rpm; 420 Nm @ 1400 rpm
Emissions: U.S. EPA Tier 4 Final; U.S. EPA Tier 4 Final

Selected Model

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

Maximum Power: 74 HP; 55.4 kW
Maximum Torque: 234.5 lb-ft @ 1600 rpm; 318 Nm @ 1600 rpm
Emissions: U.S. EPA Tier 4 Final; U.S. EPA Tier 4 Final

Model Details

Industrial C4.4

Maximum Power: 173.5 HP; 129.4 kW
Maximum Torque: 553.2 lb-ft @ 1400 rpm; 750 Nm @ 1400 rpm
Emissions: U.S. EPA Tier 4 Final; U.S. EPA Tier 4 Final

Model Details

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

Overview

Features At A Glance