Power Rating
| Maximum Power | 275 HP 205 kW |
| Maximum Torque | 927 lb-ft @ 1400 rpm 1257 Nm @ 1400 rpm |
| Rated Speed | 2200 rpm 2200 rpm |
| Minimum Power | 174 HP 130 kW |
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Industrial Diesel Engines C7.1 China NR4
Request A Price Find DealerKey Specs
- Maximum Power
- 275 HP
- 205 kW
- Maximum Torque
- 927 lb-ft @ 1400 rpm
- 1257 Nm @ 1400 rpm
- Emissions
- China Nonroad Stage IV
- China Nonroad Stage IV
Overview
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.
Features At A Glance
Installation
Advanced Features
Ideal Applications
Total Cost of Ownership
Cat Dealer Product Support
Safety
Product Specifications for C7.1 China NR4
Emission Standards
| Emissions | China Nonroad Stage IV China Nonroad Stage IV |
General
| Engine Configuration | In-Line 6 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 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 |
Engine Dimensions - Approximate
| Length | 34.3 in 870 mm |
| Width | 31.4 in 798 mm |
| Height | 35.9 in 911 mm |
| Weight - Net Dry - Basic Operating Engine Without Optional Attachments | 1863 lb 845 kg |
Aftertreatment Dimensions
| Length | 29 in 733 mm |
| Width | 30.3 in 769 mm |
| Height | 18.1 in 455 mm |
| Weight | 236 lb 107 kg |
Aftertreatment Dimensions*
| Diameter | 13.3 in 338 mm |
C7.1 China NR4 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
See how C7.1 China NR4 compares against frequently compared products.
Industrial
C7.1 China NR4
Selected
- Maximum Power
- 275 HP
- 205 kW
- Maximum Torque
- 927 lb-ft @ 1400 rpm
- 1257 Nm @ 1400 rpm
- Emissions
- China Nonroad Stage IV
- China Nonroad Stage IV
Industrial
C4.4 China NR4
C4.4 China Nonroad IV
- Maximum Power
- 173.5 HP
- 129.4 kW
- Maximum Torque
- 553 lb-ft @ 1400 rpm
- 750 Nm @ 1400 rpm
- Emissions
- China Nonroad Stage IV
- China Nonroad Stage IV
Industrial
C9.3B China NR4
China Nonroad Stage IV
- Maximum Power
- 456 HP
- 340 kW
- Maximum Torque
- 1540 lb-ft @ 1400 rpm
- 2088 Nm @ 1400 rpm
- Emissions
- China Nonroad Stage IV
- China Nonroad Stage IV
