Industrial Diesel Power Units

  • Specification Summary

  • Maximum Power 140 kW
  • Maximum Torque 815 Nm @ 1400 rpm
  • Rated Speed 2000 - 2200 rpm
  • Minimum Power 102 kW
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product-C4.4 Tier 4 Industrial Power Units - Highly Regulated
The Cat® C4.4 ACERT™ Industrial Power Unit is offered in ratings ranging from 74.5-129.4 bkW (100-173.5 bhp) @ 2200 rpm, which meet U.S. EPA Tier 4 Final, EU Stage IV emission standards. Tier 4 Interim Equivalent and Stage IIIB Equivalent ratings are also available using Flex options. 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

Maximum Power 140 kW
Maximum Torque 815 Nm @ 1400 rpm
Rated Speed 2000 - 2200 rpm
Minimum Power 102 kW

Emission Standards

Emissions EU Stage V, U.S. EPA Tier 4 Final, Japan 2014 (Tier 4 Final)

General

Engine Configuration Inline 4, 4-Stroke-Cycle Diesel
Bore 105 mm
Stroke 127 mm
Displacement 4.4 l
Compression Ratio 16.0:2
Aspiration Turbocharged Aftercooled (TA) or Twin Turbocharged Aftercooled (TTA)
Rotation from Flywheel End Counterclockwise
Aftertreatment DOC+DPF+SCR

Power Unit Dimensions

Length 1532 mm
Width 869 mm
Height 1364 mm
Weight 707 kg

Air Inlet System

 Standard air cleaners

Standard air cleaners

Control System

 Full electronic control system, all connectors and wiring looms waterproof and designed to withstand harsh off-highway environments

 Flexible and configurable software features and well-supported SAE J1939 CAN bus enables highly integrated machines

Cooling System

 Top tank temperature 108° C (226° F) as standard to minimize cooling pack size

 50:50 water glycol mix

 Guidance on cooling system design available through your dealer to ensure equipment reliability

Top tank temperature 108° C (226° F) as standard to minimize cooling pack size

50:50 water glycol mix

Guidance on cooling system design available through your dealer to ensure equipment reliability

Flywheels and Flywheel Housing

 Wide choice of drivetrain interfaces, including SAE No. 2 and SAE No. 3 configurations

Fuel System

 Electronic high pressure common rail

 ACERT™ Technology

 Innovative filter design to ensure maximum protection of the engine

Lube System

 Wide choice of sumps for different applications

Wide choice of sumps for different applications

Power Take Off

 SAE A and SAE B flanges on left-hand side. Additional SAE A flange available on left-hand side. Engine power can also be taken from the front of the engine on some applications. Factory fitted compressors are also available.

General

 Available with or without a balancer

 Paint: Caterpillar yellow, with optional colors available at request

Available with or without a balancer

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)

 Diesel Particulate Filter (DPF) / Selective Catalytic Reduction (SCR)

U.S. EPA Tier 4 Interim, EU Stage IIIB Aftertreatment / Clean Emissions Control Equipment

 Clean Emissions Module (CEM), consisting of Diesel Particulate Filter (DPF) and Diesel Oxidation Catalyst (DOC)

 No ash service requirement

 Passive regeneration

Clean Emissions Module (CEM), consisting of Diesel Particulate Filter (DPF) and Diesel Oxidation Catalyst (DOC)

No ash service requirement

Passive regeneration