The Cat™™C7.1 Industrial Diesel Engine is offered in ratings ranging from 112-162 bkW (150-220 bhp) @ 1950-2200 rpm. These ratings meet China Stage II, U.S. EPA Tier 2 equivalent, and EU Stage II equivalent emission standards. 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.
Features
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Reliable, Quiet and Durable Power
World-class manufacturing capability and processes coupled with proven core engine designs assure reliability, quiet operation, and many hours of productive life.
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High Performance
Series turbocharging with smart wastegate available on specific ratings for fast response, high power, and increased torque.
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Fuel Efficiency
Fuel consumption optimized to match operating cycles of a wide range of equipment and applications while maintaining low operating costs.
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Fuel & Oil
Tier 4 Interim or Tier 4 Final, Stage IIIB or Stage IV engines require Ultra Low Sulfur Diesel (ULSD) fuel containing a maximum of 15 ppm sulfur, and new oil formulations to support the new technology. Cat® engines are designed to accommodate B20 biofuel. Your Cat dealer can provide more information regarding fuel and oil.
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Broad Application Range
Industry leading range of factory configurable ratings and options for agricultural, material handling, construction, mining, aircraft ground support, and other industrial applications.
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Package Size
Exceptional power density enables standardization across numerous applications. Multiple installation options minimize total package size. Ideal for equipment with narrow engine compartments.
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World-class Product Support Offered Through Global Cat Dealer Network
- Scheduled maintenance, including SOSSM sample
- Customer Support Agreements (CSA)
- Caterpillar Extended Service Coverage (ESC)
- Superior dealer service network
- Extended dealer service network through the Cat Industrial Service Distributor (ISD) program
Specifications
Units for specifications
Power Rating
| Maximum Power | 217 hp 162 kW |
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| Maximum Torque | 663 lb-ft @ 1400 rpm 900 Nm @ 1400 rpm |
| Rated Speed | 1950-2200 rpm |
| Minimum Power | 150 hp 112 kW |
Emission Standards
| Emissions | China Nonroad Stage III, UN ECE R96 Stage IIIA |
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General
| Engine Configuration | Inline 6, 4-Stroke-Cycle |
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| 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 | - |
Engine Dimensions - Approximate
| Length | 44.9 in 1140 mm |
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| 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 |
Standard Equipment
Air Inlet
- Standard air cleaners
Cooling System
- Top tank temperature 108°C (226°F) as standard to minimize cooling pack size, 50:50 water glycol mix, detailed guidance on cooling system design and validation available to ensure machine reliability
Exhaust System
- Diesel particulate filter and regeneration system supplied, with a range of inlet and outlet options
Flywheels and Flywheel Housing
- Wide choice of drivetrain interfaces, including SAE1, SAE2 or SAE3 configurations
Lube System
- Wide choice of sumps for different applications
Power Take Off
- SAE A or SAE B flanges on left-hand side. Right- hand side twin PTO also available. Engine power can also be taken from the front of the engine on some applications, factory fitted compressors are also available.
General
- Paint: Caterpillar yellow, with optional colors available at request