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Caterpillar

Cat?� C4.4 Industrial Power Unit

The C4.4 IPU engine is a common rail direct injection engine with either a single turbo or twin turbo chargecooled air system. It meets U.S. EPA Tier 4 Final, EU Stage V and Japan 2014 (Tier 4 Final) emission standards. For ease of installation, the IPU provides full aftertreatment mounting, an integrated cooling system and inlet air filter mounted to the IPU.

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Photos

C4.4 EU StageV Tier 4 Industrial Power Units – Highly Regulated
C4.4 EU StageV Tier 4 Industrial Power Units – Highly Regulated

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Exterior

360° Exterior view. Double click on the image to zoom in on any area of the product.

Documents

Features

Reliable, Quiet and Durable Power

Exhaust System

World-class Product Support Offered Through Global Cat Dealer Network

Low-Cost Maintenance

Details

Specifications

Spec Value
Maximum Power 188 hp 140 kW
Maximum Torque 601 lb-ft @ 1400 rpm 815 Nm @ 1400 rpm
Rated Speed 2000 - 2200 rpm 2000 - 2200 rpm
Minimum Power 137 hp 102 kW
Spec Value
Emissions EU Stage V, U.S. EPA Tier 4 Final, Japan 2014 (Tier 4 Final) EU Stage V, U.S. EPA Tier 4 Final, Japan 2014 (Tier 4 Final)
Spec Value
Engine Configuration Inline 4, 4-Stroke-Cycle Diesel Inline 4, 4-Stroke-Cycle Diesel
Bore 4.1 in 105 mm
Stroke 5 in 127 mm
Displacement 268.5 in³ 4.4 l
Compression Ratio 16.0:2 16.0:2
Aspiration Turbocharged Aftercooled (TA) or Twin Turbocharged Aftercooled (TTA) Turbocharged Aftercooled (TA) or Twin Turbocharged Aftercooled (TTA)
Rotation from Flywheel End Counterclockwise Counterclockwise
Aftertreatment DOC+DPF+SCR DOC+DPF+SCR
Spec Value
Length 60.3 in 1532 mm
Width 34.2 in 869 mm
Height 53.7 in 1364 mm
Weight 1559 lb 707 kg

Standard Equipment

Air Inlet System

  • 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

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
  • Innovative filter design to ensure maximum protection of the engine

Lube System

  • 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

U.S. EPA TIER 4 FINAL, EU STAGE V AFTERTREATMENT, JAPAN 2014 (TIER 4 FINAL) / CLEAN EMISSIONS CONTROL EQUIPMENT

  • Diesel Oxidation Catalyst (DOC) / Diesel Particulate Filter (DPF) / Selective Catalytic Reduction (SCR)
  • No ash service requirement
  • Passive regeneration

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