New | Cat® C7.1 Diesel Engine

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.

Power Rating
Minimum Power150.0 bhp
Maximum Power220.0 bhp
Rated Speed1950-2200 rpm
Emission Standards
EmissionsChina Nonroad III, U.S. EPA Tier 2 Equivalent, EU Stage II Equivalent
Engine ConfigurationInline 6, 4-Stroke-Cycle
Bore105 mm (4.13 in)
Stroke135 mm (5.3 in)
Displacement7.01 L (427.7 in³)
AspirationTurbocharged Aftercooled (TA)
Rotation (from flywheel end)Counterclockwise
Engine Dimensions (Approximate. Final dimensions dependent on selected options)
Length929 mm (35.5 in)
Width668 mm (26.2 in)
Height797 mm (31.4 in)
Weight, Net Dry (Basic Operating Engine Without Optional Attachments)506 kg (1115 lb)

Designed To Meet China Nonroad Iii Emission Standards. Meets China Stage Ii, U.s. Epa Tier 2 Equivalent, Eu Stage Ii Equivalent Emission Standards.

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.

Every Cat Engine Is Manufactured To Stringent Standards In Order To Assure Customer Satisfaction.

  • scheduled Maintenance, Including S•o•ssm 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

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, detailed guidance on cooling system design and validation available to ensure machine reliability
Exhaust System
  • Diesel particulate filter and regeneration system supplied, with a range of inlet and outlet options
Flywheels and Flywheel Housing
  • Wide choice of drivetrain interfaces, including SAE1, SAE2 or SAE3 configurations
Fuel System
  • Electronic high pressure common rail, ACERTTM 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, factory fitted compressors are also available.
  • Paint: Caterpillar yellow, with optional colors available at request



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With only a few days notice, we were able to get the emergency system working properly. Hawthorne Cat provided great leadership and excellent field support.
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Helix Electric

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671.649.4241 office
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