C7.1

Industrial Diesel Engines C7.1

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Key Specs

Maximum Power
320 hp
240 kW
Maximum Torque
935 lb-ft @ 1400 rpm
1268 Nm @ 1400 rpm
Emissions
U.S. EPA & CARB Tier 4 Final, EU Stage V
U.S. EPA & CARB Tier 4 Final, EU Stage V

Overview

The C7.1 Industrial Diesel Engine is offered in ratings from 129-225 kW (172-302 hp) @ 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.

Features At A Glance

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Installation

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

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

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

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

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

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.
Specifications Standard Equipment

Product Specifications for C7.1

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Maximum Power 320 hp 240 kW
Maximum Torque 935 lb-ft @ 1400 rpm 1268 Nm @ 1400 rpm
Rated Speed 2200 rpm 2200 rpm
Minimum Power 172 hp 129 kW
Emissions U.S. EPA & CARB Tier 4 Final, EU Stage V U.S. EPA & CARB Tier 4 Final, EU Stage V
Engine Configuration In-Line 6 In-Line 6
Bore 4.1 in 105 mm
Stroke 5.3 in 135 mm
Displacement 427.7 in³ 7 l
Compression Ratio 16.5:1 16.5:1
Aspiration Turbocharged-Aftercooled (TA) or Series Turbocharged Aftercooled (TTA) Turbocharged-Aftercooled (TA) or Series Turbocharged Aftercooled (TTA)
Combustion System Direct Injection Direct Injection
Rotation from Flywheel End Counterclockwise Counterclockwise
Aftertreatment DOC+DPF+SCR DOC+DPF+SCR
Length 41.9 in 1064 mm
Width 31.4 in 798 mm
Height 35.9 in 912 mm
Weight - Net Dry - Basic Operating Engine Without Optional Attachments 1658 lb 752 kg
Length 29 in 733 mm
Width 30.3 in 769 mm
Height 18.1 in 455 mm
Weight 236 lb 107 kg
Diameter 13.3 in 338 mm

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 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

See how C7.1 compares against frequently compared products.

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C7.1
C7.1
Maximum Power
320 hp
240 kW
Maximum Torque
935 lb-ft @ 1400 rpm
1268 Nm @ 1400 rpm
Emissions
U.S. EPA & CARB Tier 4 Final, EU Stage V
U.S. EPA & CARB Tier 4 Final, EU Stage V
Industrial
C4.4
C4.4
Maximum Power
200 hp
150 kW
Maximum Torque
609 lb-ft @ 1400 rpm
825 Nm @ 1400 rpm
Emissions
U.S. EPA & CARB Tier 4 Final, EU Stage V
U.S. EPA & CARB Tier 4 Final, EU Stage V
View Details
Industrial
C9.3B
C9.3B
Maximum Power
456 hp
340 kW
Maximum Torque
1540 lb-ft @ 1400 rpm
2088 Nm @ 1400 rpm
Emissions
EU Stage V, U.S. EPA Tier 4 Final, Korea Stage V, Japan 2014, China NRIV
EU Stage V, U.S. EPA Tier 4 Final, Korea Stage V, Japan 2014, China NRIV
View Details

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C7.1 Tier 4 Diesel Engines - Highly Regulated

C7.1 Tier 4 Diesel Engines - Highly Regulated

C7.1 Tier 4 Diesel Engines - Highly Regulated

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