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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Power Rating
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- Maximum Power
- 188HP
- Maximum Torque
- 601lb-ft @ 1400 rpm
- Rated Speed
- 2000 - 2200 rpm
- Minimum Power
- 137HP
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Emission Standards
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- Emissions
- EU Stage V, U.S. EPA Tier 4 Final, Japan 2014 (Tier 4 Final)
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General
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- Engine Configuration
- Inline 4, 4-Stroke-Cycle Diesel
- Bore
- 4.1in
- Stroke
- 5in
- Displacement
- 268.5in³
- Compression Ratio
- 16.0:2
- Aspiration
- Turbocharged Aftercooled (TA) or Twin Turbocharged Aftercooled (TTA)
- Rotation from Flywheel End
- Counterclockwise
- Aftertreatment
- DOC+DPF+SCR
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Power Unit Dimensions
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- Length
- 60.3in
- Width
- 34.2in
- Height
- 53.7in
- Weight
- 1559lb
Standard Equipment:
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Air Inlet System
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- Standard air cleaners
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Control System
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- 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
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Cooling System
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- 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
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Flywheels And Flywheel Housing
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- Wide choice of drivetrain interfaces, including SAE No. 2 and SAE No. 3 configurations
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Fuel System
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- Electronic high pressure common rail
- Innovative filter design to ensure maximum protection of the engine
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Lube System
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- Wide choice of sumps for different applications
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Power Take Off
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- 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.
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General
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- Available with or without a balancer
- Paint: Caterpillar yellow, with optional colors available at request
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U.s. Epa Tier 4 Final, Eu Stage V Aftertreatment, Japan 2014 (tier 4 Final) / Clean Emissions Control Equipment
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- Diesel Oxidation Catalyst (DOC) / Diesel Particulate Filter (DPF) / Selective Catalytic Reduction (SCR)
- No ash service requirement
- Passive regeneration