Overview
Demanding conditions, applications and environments make the Cat® C7.1 engines the perfect solution for your severe duty equipment. With decades of diesel engine innovation and expertise behind these engines, they deliver the low operating costs and legendary Cat reliability and durability that give you a powerful advantage. More importantly, they're backed by the world-class Cat dealer network ready to service and support every Cat industrial engine. Industries and applications powered by C7.1 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. Cat® C7.1 Industrial Diesel Engines, with ratings: 129-225 bkW (172-301.8 bhp) @ 2200 rpm, meet U.S. EPA Tier 4 Final, EU Stage V emission standards. This information about Emissions describes the particular rating's emissions technology. For more information about emissions certification, please contact your local Cat dealer.
Specifications
| Maximum Power | 320 HP |
| Maximum Torque | 935 lb-ft @ 1400 rpm |
| Rated Speed | 2200 rpm |
| Maximum Power | 240 kW |
| Maximum Torque | 1268 Nm @ 1400 rpm |
| Rated Speed | 2200 rpm |
Benefits & Features
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
See More
Specifications
| Maximum Power | 320 HP |
| Maximum Torque | 935 lb-ft @ 1400 rpm |
| Rated Speed | 2200 rpm |
| Minimum Power | 172 HP |
| Emissions | U.S. EPA & CARB Tier 4 Final, EU Stage V |
| Engine Configuration | In-Line 6 |
| Bore | 4.1 in |
| Stroke | 5.3 in |
| Displacement | 427.7 in³ |
| 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 | 41.9 in |
| Width | 31.4 in |
| Height | 35.9 in |
| Weight - Net Dry - Basic Operating Engine Without Optional Attachments | 1658 lb |
| Length | 29 in |
| Width | 30.3 in |
| Height | 18.1 in |
| Diameter | 13.3 in |
| Weight | 236 lb |
| Maximum Power | 240 kW |
| Maximum Torque | 1268 Nm @ 1400 rpm |
| Rated Speed | 2200 rpm |
| Minimum Power | 129 kW |
| Emissions | U.S. EPA & CARB Tier 4 Final, EU Stage V |
| Engine Configuration | In-Line 6 |
| Bore | 105 mm |
| Stroke | 135 mm |
| Displacement | 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 | 1064 mm |
| Width | 798 mm |
| Height | 912 mm |
| Weight - Net Dry - Basic Operating Engine Without Optional Attachments | 752 kg |
| Length | 733 mm |
| Width | 769 mm |
| Height | 455 mm |
| Diameter | 338 mm |
| Weight | 107 kg |
Benefits & Features
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
- 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 at request
- U.S. EPA Tier 4 Final, EU Stage V 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
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