C3.4B Industrial Power Unit

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

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Maximum Power: 115.0 HP; 86.0 kW

Maximum Torque: 310.0 lb-ft @ 1400 rpm; 420.0 Nm @ 1400 rpm

Emissions: U.S. EPA Tier 4 Final, EU Stage IV nonroad emission standards. U.S. EPA Tier 4 Interim Equivalent or EU Stage IIIB Equivalent ratings also available using EPA or EU Flex Provisions.; U.S. EPA Tier 4 Final, EU Stage IV nonroad emission standards. U.S. EPA Tier 4 Interim Equivalent or EU Stage IIIB Equivalent ratings also available using EPA or EU Flex Provisions.

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.

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.
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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.
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Fuel Efficiency

Fuel consumption optimized to match operating cycles of a wide range of equipment and applications while maintaining low operating costs.
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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.
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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.
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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
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World-class manufacturing capability and processes coupled with proven core engine designs assure reliability, quiet operation, and many hours of productive life.

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

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.

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

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	115.0 HP 86.0 kW
Maximum Torque	310.0 lb-ft @ 1400 rpm 420.0 Nm @ 1400 rpm
Minimum Power	100.0 HP 74.5 kW
Rated Speed	2200 2200

Emission Standards

Emissions

U.S. EPA Tier 4 Final, EU Stage IV nonroad emission standards. U.S. EPA Tier 4 Interim Equivalent or EU Stage IIIB Equivalent ratings also available using EPA or EU Flex Provisions. U.S. EPA Tier 4 Final, EU Stage IV nonroad emission standards. U.S. EPA Tier 4 Interim Equivalent or EU Stage IIIB Equivalent ratings also available using EPA or EU Flex Provisions.

General

Engine Configuration	In-Line 4, 4-Stroke-Cycle Diesel In-Line 4, 4-Stroke-Cycle Diesel
Bore	3.9 in 99.0 mm
Stroke	4.3 in 110.0 mm
Displacement	207.5 in³ 3.4 l
Aspiration	Turbocharged Aftercooled (TA) Turbocharged Aftercooled (TA)
Compression Ratio	17.0:1 17.0:1
Rotation from Flywheel End	Counterclockwise Counterclockwise

Power Unit Dimensions

Weight	897.0 lb 407.0 kg
Width	27.7 in 705.0 mm
Height	49.3 in 1033.0 mm
Length	40.7 in 1252.0 mm

Aftertreatment Dimensions - Approximate

DOC Diameter	196 mm (7.7 in) 196 mm (7.7 in)
DOC Length	320 mm (12.6 in) 320 mm (12.6 in)
SCR Weight	20 kg (44 lb) 20 kg (44 lb)
DOC Weight	15 kg (33 lb) 15 kg (33 lb)
SRC Length	520 mm (20.47 in) 520 mm (20.47 in)
SCR Diameter	251 mm (9.88 in) 251 mm (9.88 in)

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

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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: 115.0 HP; 86.0 kW
Maximum Torque: 310.0 lb-ft @ 1400 rpm; 420.0 Nm @ 1400 rpm
Emissions: U.S. EPA Tier 4 Final, EU Stage IV nonroad emission standards. U.S. EPA Tier 4 Interim Equivalent or EU Stage IIIB Equivalent ratings also available using EPA or EU Flex Provisions.; U.S. EPA Tier 4 Final, EU Stage IV nonroad emission standards. U.S. EPA Tier 4 Interim Equivalent or EU Stage IIIB Equivalent ratings also available using EPA or EU Flex Provisions.

Selected Model

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

Maximum Power: 74.0 HP; 55.4 kW
Maximum Torque: 234.5 lb-ft @ 1600 rpm; 318.0 Nm @ 1600 rpm
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

Model Details

Industrial C4.4

Maximum Power: 173.5 HP; 129.4 kW
Maximum Torque: 553.2 lb-ft @ 1400 rpm; 750.0 Nm @ 1400 rpm
Emissions: U.S. EPA Tier 4 Final, EU Stage IV; U.S. EPA Tier 4 Final, EU Stage IV

Model Details

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