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Industrial

Cat® C7.1 Industrial Power Unit

  • Minimum Rating
    156 bhp
  • Maximum Power
    275 HP
  • Maximum Rating
    275 bhp
  • Maximum Rating
    275 BHP
Power Rating
Minimum Rating
156 bhp
Maximum Power
275 HP
Maximum Rating
275 bhp
Maximum Rating
275 BHP
Maximum Torque
774 lb-ft @ 1400 rpm
Minimum Rating
156 BHP
Rated Speed
116-205 bkW/156-275 bhp @ 2200 rpm, 129 bkW/173 bhp @ 2500 rpm
Minimum Power
156 HP
Rated Speed
116-205 bkW/156-275 bhp @ 2200 rpm, 129 bkW/173 bhp @ 2500 rpm
Emission Standards
Emissions
China Stage II, U.S. EPA Tier 3 Equivalent, EU Stage IIIA Equivalent. Designed to meet China Stage III emission standards.
Emissions
China Nonroad Stage III, Brazil MAR-1, UN ECE R96 Stage IIIA
General
Engine Configuration
Inline 6, 4-Stroke-Cycle Diesel
Engine Configuration
Inline 6, 4-Stroke-Cycle Diesel
Bore
4.1 in
Bore
105 mm (4.1 in)
Bore
105 mm (4.1 in)
Stroke
5.3 in
Displacement
427.7 in³
Stroke
135 mm (5.3 in)
Stroke
135 mm (5.3 in)
Compression Ratio
16.8:1
Aspiration
Turbocharged Aftercooled (TA)
Displacement
7.01 L (427.7 in³)
Displacement
7.01 L (427.7 in³)
Combustion System
Direct Injection
Aspiration
Turbocharged Aftercooled (TA)
Rotation from Flywheel End
Counterclockwise
Compression Ratio
16.8:1
Aftertreatment
-
Combustion System
Direct Injection
Rotation
Counterclockwise
Power Unit Dimensions
Length
68 in
Width
31 in
Height
44.8 in
Weight
1737 lb
Power Unit Dimensions (Approximate. Final dimensions dependent on selected options)
Length
1728 mm (68 in)
Width
788 mm (31 in)
Height
1140 mm (44.8)
Power Unit Dimensions - Approximate
Weight
788 kg (1737 lbs)
Width
788 mm (31 in)
Height
1140 mm (44.8)
Length
1728 mm (68 in)
  • 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