Popular: Diesel Generators Natural Gas Gensets Switchgear Sizing Guide Compliance / NFPA 110 Spec Sheets Emergency Service
Power units

C4.4

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.

Have questions about this product?
Request a Quote
800.768.4200
Power Rating
Maximum Power 188 hp
Maximum Torque 601 lb-ft @ 1400 rpm
Rated Speed 2000 - 2200 rpm
Minimum Power 137 hp
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 4.1 in
Stroke 5 in
Displacement 268.5 in³
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 60.3 in
Width 34.2 in
Height 53.7 in
Weight 1559 lb

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
Need installed dimensions with enclosure and tank? See Model Configurations