The Cat C7.1 Industrial Diesel Engine is offered in ratings ranging from 116-205 bkW (156.2 bhp-275 bhp) @2200 rpm. These ratings meet China Stage II, U.S. EPA Tier 3 equivalent, EU Stage IIIA equivalent emission standards. Industries and applications powered by C7.1 ACERT 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.

C7.1 LRC Diesel Engines - Lesser Regulated & Non-Regulated

Features

  • 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

Specifications

Units for specifications

Power Rating

Maximum Power 275 hp 205 kW
Maximum Torque 774 lb-ft @ 1400 rpm 1050 Nm @ 1400 rpm
Rated Speed 2200-2500 rpm
Minimum Power 155.6 hp 116 kW

Emission Standards

Emissions China Nonroad Stage III, Brazil MAR-1, UN ECE R96 Stage IIIA

General

Engine Configuration In-Line 6, 4-Stroke-Cycle Diesel
Bore 4.1 in 105 mm
Stroke 5.3 in 135 mm
Displacement 427.7 in³ 7.01 l
Aspiration Turbocharged Aftercooled (TA)
Rotation from Flywheel End Counterclockwise
Aftertreatment -

Engine Dimensions - Approximate

Length 36.6 in 929 mm
Width 26.3 in 668 mm
Height 32.2 in 817 mm
Weight - Net Dry - Basic Operating Engine Without Optional Attachments 1115 lb 506 kg

Standard Equipment

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.

General

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