Power units

C7.1

The C7.1 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.

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Reliable, Quiet and Durable Power

  • World-class manufacturing capability and processes coupled with proven core engine designs assure reliability, quiet operation, and many hours of productive life.

Fuel Efficiency

  • Fuel consumption optimized to match operating cycles of a wide range of equipment and applications while maintaining low operating costs.

Broad Application Range

  • Industry leading range of factory configurable ratings and options for agricultural, material handling, construction, mining, aircraft ground support, and other industrial applications.

Package Size

  • Exceptional power density enables standardization across numerous applications. Multiple installation options minimize total package size. Ideal for equipment with narrow engine compartments.
Power Rating
Maximum Power275 hp
Maximum Torque774 lb-ft @ 1400 rpm
Rated Speed116-205 bkW/156-275 bhp @ 2200 rpm, 129 bkW/173 bhp @ 2500 rpm
Minimum Power156 hp
Emission Standards
EmissionsChina Nonroad Stage III, Brazil MAR-1, UN ECE R96 Stage IIIA
General
Engine ConfigurationInline 6, 4-Stroke-Cycle Diesel
Bore4.1 in
Stroke5.3 in
Displacement427.7 in³
Compression Ratio16.8:1
AspirationTurbocharged Aftercooled (TA)
Rotation from Flywheel EndCounterclockwise
Aftertreatment-
Power Unit Dimensions
Length68 in
Width31 in
Height44.8 in
Weight1737 lb

Air Inlet

  • 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
  • Cooling system designed for operation in 48 C (118 F) ambient.

Flywheels and Flywheel Housing

  • Wide choice of drivetrain interfaces, including SAE No. 1, 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

Power Take Off

  • SAE A or SAE B flanges on left-hand side. Right-hand side twin PTO also available. Engine power can also be taken from the front of the engine on some applications.

General

  • Paint: Caterpillar yellow
  • C7.1 IPU Spec Sheet
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Need installed dimensions with enclosure and tank? See Model Configurations