Cat® C7.1 Diesel Engine

Overview
Minimum Power
150 bhp
Maximum Power
220 bhp
Emissions
China Nonroad III, U.S. EPA Tier 3 Equivalent, EU Stage III Equivalent
  • Exterior View

Power Rating

Minimum Power
150 bhp
Maximum Power
220 bhp
Rated Speed
1950-2200 rpm
Minimum Power
150 HP
Maximum Power
217 HP
Rated Speed
1950-2200 rpm
Maximum Torque
663 lb-ft @ 1400 rpm
Maximum Power
217 HP
Maximum Torque
663 lb-ft @ 1400 rpm
Rated Speed
1950-2200 rpm
Minimum Power
150 HP

Emission Standards

Emissions
China Nonroad III, U.S. EPA Tier 3 Equivalent, EU Stage III Equivalent
Emissions
China Nonroad Stage III, UN ECE R96 Stage IIIA
Emissions
China Nonroad Stage III, UN ECE R96 Stage IIIA

General

Engine Configuration
Inline 6, 4-Stroke-Cycle
Bore
105 mm (4.13 in)
Stroke
135 mm (5.3 in)
Displacement
7.01 L (427.7 in³)
Aspiration
Turbocharged Aftercooled (TA)
Rotation (from flywheel end)
Counterclockwise
Engine Configuration
Inline 6, 4-Stroke-Cycle
Bore
105 mm (4.13 in)
Stroke
135 mm (5.3 in)
Aspiration
Turbocharged Aftercooled (TA)
Displacement
7.01 L (427.7 in³)
Rotation from Flywheel End
Counterclockwise
Bore
4 in
Stroke
5 in
Displacement
428 in³
Compression Ratio
18.2:1
Combustion System
Direct Injection
Aftertreatment
-
Engine Configuration
Inline 6, 4-Stroke-Cycle
Bore
4 in
Stroke
5 in
Displacement
428 in³
Compression Ratio
18.2:1
Aspiration
Turbocharged Aftercooled (TA)
Combustion System
Direct Injection
Rotation from Flywheel End
Counterclockwise
Aftertreatment
-

Engine Dimensions (Approximate. Final dimensions dependent on selected options)

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

Engine Dimensions - Approximate

Height
797 mm (31.4 in)
Length
929 mm (35.5 in)
Weight - Net Dry - Basic Operating Engine Without Optional Attachments
506 kg (1115 lb)
Width
668 mm (26.2 in)
Length
45 in
Height
32 in
Width
28 in
Weight - Net Dry - Basic Operating Engine Without Optional Attachments
1,118 lb
Length
45 in
Width
28 in
Height
32 in
Weight - Net Dry - Basic Operating Engine Without Optional Attachments
1,118 lb

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.

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.

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 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.

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.

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.

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
  • 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
  • Air Inlet
    • Standard air cleaners
  • 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
  • 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.
  • General
    • Paint: Caterpillar yellow, with optional colors available at request
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