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C7.1 Tier 4 Diesel Engines - Highly Regulated

C7.1

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C7.1

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Overview

The C7.1 Industrial Diesel Engine is offered in ratings from 129-225 bkW (172-302 bhp) @ 2200 rpm and meets U.S. EPA Tier 4 Final, EU Stage V emission standards. Industries and applications powered by C7.1 engines include: Agriculture, 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.

  • 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.
    Read More
    Reliable, Quiet and Durable Power

  • High Performance

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

  • Fuel Efficiency

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

  • Fuel & Oil

    Tier 4 Final, or Stage V 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.
    Read More
    Fuel & 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.
    Read More
    Broad Application Range

  • Package Size

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

  • Low Cost Maintenance

    Worldwide service delivers ease of maintenance and simplifies the servicing routine. Hydraulic tappets, multi-vee belts, minimum 5000-hour diesel particulate filter (DPF) ash service interval and 500-hour oil change intervals enable low-cost maintenance. Many service items have a choice of location on either side of the engine to enable choice of service access. The S·O·SSM program is available from your Cat dealer to determine oil change intervals and provide optimal performance.
    Read More
    Low Cost Maintenance

  • Quality

    Every Cat engine is manufactured to stringent standards in order to assure customer satisfaction.
    Read More
    Quality

  • 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
    Read More
    World-class Product Support Offered Through Global Cat Dealer Network

  • Tier 4 Final, Stage V Aftertreatment Features


    Regeneration. The DOC/SCR modular design offers a simple, compact package while providing high levels of performance. A DOC/DPF/SCR option is available for higher power machines. While in use, both DOC/SCR an DOC/DPF/SCR systems offer transparent operation to the user.
    Mounting. Extensive range of inlets and outlets, as well as remote and on-engine installations, provide flexibility for many installations.
    Service. Both DOC/SCR an DOC/DPF/SCR systems are service-free for the emissions life of the engine.
    Available in 12V or 24V systems
    Read More
    Tier 4 Final, Stage V Aftertreatment Features
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World-class manufacturing capability and processes coupled with proven core engine designs assure reliability, quiet operation, and many hours of productive life.
Read More
Reliable, Quiet and Durable Power
Series turbocharging with smart wastegate available on specific ratings for fast response, high power, and increased torque.
Read More
High Performance
Fuel consumption optimized to match operating cycles of a wide range of equipment and applications while maintaining low operating costs.
Read More
Fuel Efficiency
Tier 4 Final, or Stage V 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.
Read More
Fuel & Oil
Industry leading range of factory configurable ratings and options for agricultural, material handling, construction, mining, aircraft ground support, and other industrial applications.
Read More
Broad Application Range
Exceptional power density enables standardization across numerous applications. Multiple installation options minimize total package size. Ideal for equipment with narrow engine compartments.
Read More
Package Size
Worldwide service delivers ease of maintenance and simplifies the servicing routine. Hydraulic tappets, multi-vee belts, minimum 5000-hour diesel particulate filter (DPF) ash service interval and 500-hour oil change intervals enable low-cost maintenance. Many service items have a choice of location on either side of the engine to enable choice of service access. The S·O·SSM program is available from your Cat dealer to determine oil change intervals and provide optimal performance.
Read More
Low Cost Maintenance
Every Cat engine is manufactured to stringent standards in order to assure customer satisfaction.
Read More
Quality
  • 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
Read More
World-class Product Support Offered Through Global Cat Dealer Network

Regeneration. The DOC/SCR modular design offers a simple, compact package while providing high levels of performance. A DOC/DPF/SCR option is available for higher power machines. While in use, both DOC/SCR an DOC/DPF/SCR systems offer transparent operation to the user.
Mounting. Extensive range of inlets and outlets, as well as remote and on-engine installations, provide flexibility for many installations.
Service. Both DOC/SCR an DOC/DPF/SCR systems are service-free for the emissions life of the engine.
Available in 12V or 24V systems
Read More
Tier 4 Final, Stage V Aftertreatment Features
Full Specifications Standard Equipment

Product Specifications for C7.1

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Power Rating

Emission Standards

General

Engine Dimensions - Approximate

Aftertreatment Dimensions

C7.1 Standard Equipment

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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
  • Guidance on cooling system design available through your dealer to ensure equipment reliability

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
  • Innovative filter design to ensure maximum protection of the engine

Lube System

  • Wide choice of sumps for different applications

General

  • Paint: Caterpillar yellow, with optional colors available at request

U.S. EPA Tier 4 Final, EU Stage V Aftertreatment/ Clean Emissions Control Equipment

  • Clean Emissions Module (CEM), consisting of Diesel Particulate Filter (DPF) and Diesel Oxidation Catalyst (DOC)
  • NOx Reduction System (NRS)
  • Selective Catalytic Reduction (SCR)
  • 3" flex pipe connection with straight, 45°, and 90° options for flexibility

See how C7.1 compares against frequently compared products.

Industrial C7.1
C7.1
Maximum Power
320.0 HP
240.0 kW
Maximum Torque
935.0 lb-ft @ 1400 rpm
1268.0 Nm @ 1400 rpm
Emissions
U.S. EPA & CARB Tier 4 Final, EU Stage V
U.S. EPA & CARB Tier 4 Final, EU Stage V
Selected Model
Industrial C4.4
C4.4
Maximum Power
173.5 HP
129.4 kW
Maximum Torque
553.0 lb-ft @ 1400 rpm
750.0 Nm @ 1400 rpm
Emissions
U.S. EPA & CARB Tier 4 Final
U.S. EPA & CARB Tier 4 Final
Model Details
Industrial C9.3B
C9.3B
Maximum Power
456.0 HP
340.0 kW
Maximum Torque
1540.0 lb-ft @ 1400 rpm
2088.0 Nm @ 1400 rpm
Emissions
U.S. EPA Tier 4 Final, EU Stage V
U.S. EPA Tier 4 Final, EU Stage V
Model Details

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C7.1 Tier 4 Diesel Engines - Highly Regulated

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