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.

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

Cat® C4.4 Industrial Power Unit

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