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SPECS SUMMARY

Maximum Power217 HP (162 kW)
Maximum Torque663 lb-ft @ 1400 rpm (900 Nm @ 1400 rpm)
EmissionsChina Nonroad Stage III, UN ECE R96 Stage IIIA
Rated Speed1950-2200 rpm
The Cat® C7.1 Industrial Diesel Engine is offered in ratings ranging from 112-162 bkW (150-220 bhp) @ 1950-2200 rpm. These ratings meet China Stage II, U.S. EPA Tier 2 equivalent, and EU Stage II equivalent emission standards. Industries and applications powered by C7.1 engines include: Agriculture, Ag Tractors, Aircraft Ground Support, Bore/Drill Rigs, Chippers/Grinders, Combines/Harvesters, Compactors/Rollers, Compressors, Construction, Cranes, Crushers, Feller Bunchers, Forestry, Forklifts, General Industrial, Hydraulic Power Units, Irrigation Equipment, Loaders/Forwarders, Material Handling, Mining, Mobile Earthmoving Equipment, Mobile Sweepers, Paving Equipment, Pumps, Skidders, Specialty Ag Equipment, Sprayers, Trenchers and Underground Mining Equipment.

Specifications

Maximum Power217 HP (162 kW)
Maximum Torque663 lb-ft @ 1400 rpm (900 Nm @ 1400 rpm)
EmissionsChina Nonroad Stage III, UN ECE R96 Stage IIIA
Rated Speed1950-2200 rpm
Length44.9 in (1140 mm)
Minimum Power150 HP (112 kW)
Engine ConfigurationInline 6, 4-Stroke-Cycle
Bore4.1 in (105 mm)
Stroke5.3 in (135 mm)
Displacement427.7 in³ (7.01 l)
Compression Ratio18.2:1
AspirationTurbocharged Aftercooled (TA)
Combustion SystemDirect Injection
Rotation from Flywheel EndCounterclockwise
Aftertreatment-
Width28.4 in (720 mm)
Height32.3 in (820 mm)
Weight - Net Dry - Basic Operating Engine Without Optional Attachments1118 lb (507 kg)

Benefits and Features

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

Series turbocharging with smart wastegate available on specific ratings for fast response, high power, and increased torque.

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

Tier 4 Interim or Tier 4 Final, Stage IIIB or Stage IV engines require Ultra Low Sulfur Diesel (ULSD) fuel containing a maximum of 15 ppm sulfur, and new oil formulations to support the new technology. Cat® engines are designed to accommodate B20 biofuel. Your Cat dealer can provide more information regarding fuel and oil.

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

Exceptional power density enables standardization across numerous applications. Multiple installation options minimize total package size. Ideal for equipment with narrow engine compartments.

  • Scheduled maintenance, including SOSSM sample
  • Customer Support Agreements (CSA)
  • Caterpillar Extended Service Coverage (ESC)
  • Superior dealer service network
  • Extended dealer service network through the Cat Industrial Service Distributor (ISD) program

Standard Equipment

  • Standard air cleaners
  • Top tank temperature 108°C (226°F) as standard to minimize cooling pack size, 50:50 water glycol mix, detailed guidance on cooling system design and validation available to ensure machine reliability
  • Diesel particulate filter and regeneration system supplied, with a range of inlet and outlet options
  • Wide choice of drivetrain interfaces, including SAE1, SAE2 or SAE3 configurations
  • Wide choice of sumps for different applications
  • 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, factory fitted compressors are also available.
  • Paint: Caterpillar yellow, with optional colors available at request