C7.1 China NR4
Cat?� C7.1 Diesel Engine
DESCRIPTION
The Cat?� C7.1 industrial diesel engine is offered in ratings from 130-205 kW (174-275 hp) and meets China Nonroad Stage IV emission standards. The C7.1 is designed to meet the needs of many industries and applications, including bore/drill rigs, chippers/grinders, material handling, mining, earthmoving equipment, paving equipment, pumps, fruit harvesters equipment, turf and underground mining equipment.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, five-year warranty, superior dealer service and a comprehensive global dealer support network—it’s all standard with the Cat C7.1.
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.
- Standard Equipment
- Specs
- Docs
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
- 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
Specs
Overview
Power Rating
Emission Standards
General
Engine Dimensions - Approximate
Aftertreatment Dimensions
Aftertreatment Dimensions*
Aftertreatment Dimensions
SEE HOW C7.1 China NR4 COMPARES AGAINST FREQUENTLY COMPARED PRODUCTS.
- Brand
- Caterpillar
- Status
- Current
- Maximum Power
- 275 hp / 205 kW
- Maximum Torque
- 927 lb-ft @ 1400 rpm / 1257 Nm @ 1400 rpm
- Rated Speed
- 2200 rpm
- Minimum Power
- 174 hp / 130 kW
- Emissions
- China Nonroad Stage IV
- Engine Configuration
- In-Line 6
- Bore
- 4.13 in / 105 mm
- Stroke
- 5.3 in / 135 mm
- Displacement
- 427.7 in³ / 7 l
- Compression Ratio
- 16.5:1
- Aspiration
- Turbocharged-Aftercooled (TA) or Series Turbocharged Aftercooled (TTA)
- Combustion System
- Direct Injection
- Rotation from Flywheel End
- Counterclockwise
- Aftertreatment
- DOC+DPF+SCR
- Length
- 29 in / 733 mm
- Width
- 30.3 in / 769 mm
- Height
- 18.1 in / 455 mm
- Weight - Net Dry - Basic Operating Engine Without Optional Attachments
- 1863 lb / 845 kg
- Brand
- Caterpillar
- Status
- Current
- Maximum Power
- 217 hp / 162 kW
- Maximum Torque
- 663 lb-ft @ 1400 rpm / 900 Nm @ 1400 rpm
- Rated Speed
- 1950-2200 rpm
- Minimum Power
- 150 hp / 112 kW
- Emissions
- China Nonroad Stage III, UN ECE R96 Stage IIIA
- Engine Configuration
- Inline 6, 4-Stroke-Cycle
- Bore
- 4.1 in / 105 mm
- Stroke
- 5.3 in / 135 mm
- Displacement
- 427.7 in³ / 7.01 l
- Compression Ratio
- 18.2:1
- Aspiration
- Turbocharged Aftercooled (TA)
- Combustion System
- Direct Injection
- Rotation from Flywheel End
- Counterclockwise
- Aftertreatment
- -
- Length
- 44.9 in / 1140 mm
- Width
- 28.4 in / 720 mm
- Height
- 32.3 in / 820 mm
- Weight - Net Dry - Basic Operating Engine Without Optional Attachments
- 1118 lb / 507 kg
- Brand
- Caterpillar
- Status
- Current
- Maximum Power
- 456 hp / 340 kW
- Maximum Torque
- 1540 lb-ft @ 1400 rpm / 2088 Nm @ 1400 rpm
- Rated Speed
- 1800-2200 rpm
- Minimum Power
- 335 hp / 250 kW
- Emissions
- EU Stage V, U.S. EPA Tier 4 Final, Korea Stage V, Japan 2014, China NRIV
- Engine Configuration
- In-Line 6
- Bore
- 4.5 in / 115 mm
- Stroke
- 5.9 in / 149 mm
- Displacement
- 567.5 in³ / 9.3 l
- Compression Ratio
- 17.0:1
- Aspiration
- Turbocharged-Aftercooled (TA)
- Combustion System
- Direct Injection
- Rotation from Flywheel End
- Counterclockwise
- Aftertreatment
- DOC+DPF+SCR
- Length
- 36 in / 925 mm
- Width
- 27 in / 694 mm
- Height
- 17 in / 432 mm
- Weight - Net Dry - Basic Operating Engine Without Optional Attachments
- 1907 lb / 865 kg