Cat® C7.1 Diesel Engine

Cat® C7.1 Diesel Engine

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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 ...

Power Rating

Minimum Power
Maximum Power
Rated Speed
1950-2200 rpm

Emission Standards

China Nonroad III, U.S. EPA Tier 3 Equivalent, EU Stage III Equivalent


Engine Configuration
Inline 6, 4-Stroke-Cycle
105 mm (4.13 in)
135 mm (5.3 in)
7.01 L (427.7 in³)
Turbocharged Aftercooled (TA)
Rotation from Flywheel End

Engine Dimensions - Approximate

668 mm (26.2 in)
Weight - Net Dry - Basic Operating Engine Without Optional Attachments
506 kg (1115 lb)
929 mm (35.5 in)
797 mm (31.4 in)

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.

High Performance

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

Fuel Efficiency

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

Fuel & Oil

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.

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.

World-class Product Support Offered Through Global Cat Dealer Network

  • 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: