C7.1

Cat® C7.1 ACERT™ Diesel Engine

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.

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Installation

Boasting one of Caterpillar's most modular engine designs to date, the Cat C7.1 also features an engine-mounted aftertreatment that saves OEMs valuable time and space when installing into a wide variety of machines—especially industrial and construction applications. OEMs also enjoy a 20% length, 5% height and 40% weight reduction when downsizing from 9-liter platforms.

Advanced Features

The Cat C7.1 uses passive regeneration technology, so operators can continue to perform their toughest tasks, in the most severe environments, without having to wait on the engine.

Ideal Applications

Industrial, agricultural and construction applications such as: Pumps • Compressors • Chippers • Grinders • Asphalt paving equipment • Hydraulic power units • Bore rigs • Drill rigs • Tractors

Total Cost of Ownership

The benefits to downsizing are many, including an 18% decrease in overall fuel consumption when downsizing from a 6-cylinder engine. With an added 3-4% decrease in overall DEF consumption and EGR integration, the cost savings don't take long to add up.

Cat Dealer Product Support

Scheduled maintenance, included warranty, reliable dealer service and a comprehensive global dealer support network—it’s all standard with the Cat C7.1. See your Cat dealer for details.

Safety

Validated with thousands of hours of field testing, the Cat C7.1 is built to meet Caterpillar's strict safety standards and customers' most demanding work sites throughout the world.

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Documents & Brochures

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
  • 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 on request
U.S. EPA Tier 4 Final, EU Stage V, Japan 2014 (Tier 4 Final) 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

Additional information

Offering Type

Power Rating - Maximum Power

240 kW ( 320 HP )
Power Rating - Maximum Torque

1268 Nm @ 1400 rpm ( 935 lb-ft @ 1400 rpm )
Power Rating - Rated Speed

2200 rpm
Power Rating - Minimum Power

129 kW ( 172 HP )
Emission Standards - Emissions

U.S. EPA & CARB Tier 4 Final, EU Stage V
General - Engine Configuration

In-Line 6
General - Bore

105 mm ( 4.1 in )
General - Stroke

135 mm ( 5.3 in )
General - Displacement

7 l ( 427.7 in³ )
General - Compression Ratio

16.5:1
General - Aspiration

Turbocharged-Aftercooled (TA) or Series Turbocharged Aftercooled (TTA)
General - Combustion System

Direct Injection
General - Rotation from Flywheel End

Counterclockwise
General - Aftertreatment

DOC+DPF+SCR
Engine Dimensions - Approximate - Length

1064 mm ( 41.9 in )
Engine Dimensions - Approximate - Width

798 mm ( 31.4 in )
Engine Dimensions - Approximate - Height

912 mm ( 35.9 in )
Engine Dimensions - Approximate - Weight - Net Dry - Basic Operating Engine Without Optional Attachments

752 kg ( 1658 lb )
Aftertreatment Dimensions - Length

733 mm ( 29 in )
Aftertreatment Dimensions - Width

769 mm ( 30.3 in )
Aftertreatment Dimensions - Height

455 mm ( 18.1 in )
Aftertreatment Dimensions* - Diameter

338 mm ( 13.3 in )
Aftertreatment Dimensions - Weight

107 kg ( 236 lb )

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