The C7.1 ACERT™ Industrial Diesel Engine is offered in ratings from 116-225 bkW (156-302 bhp) @ 2200 rpm and meets U.S. EPA Tier 4 Final, EU Stage IV emission standards. Industries and applications powered by C7.1 ACERT 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.
Emissions | U.S. EPA Tier 4 Final Nonroad, EU Stage IV Nonroad, U.S. EPA Tier 4 Interim Nonroad Equivalent (Not Currently EPA Certified) and EU Stage IIIB Nonroad Equivalent (Non-Current for EU) Emission Standards U.S. EPA Tier 4 Final Nonroad, EU Stage IV Nonroad, U.S. EPA Tier 4 Interim Nonroad Equivalent (Not Currently EPA Certified) and EU Stage IIIB Nonroad Equivalent (Non-Current for EU) Emission Standards | More |
Engine Configuration | In-Line 6, 4-Stroke-Cycle Diesel In-Line 6, 4-Stroke-Cycle Diesel | More |
Bore | 105 mm (4.1 in) 105 mm (4.1 in) | More |
Stroke | 135 mm (5.3 in) 135 mm (5.3 in) | More |
Displacement | 7 L (427.7 in³) 7 L (427.7 in³) | More |
Aspiration | Turbocharged-Aftercooled (TA) or Series Turbocharged Aftercooled (TTA) Turbocharged-Aftercooled (TA) or Series Turbocharged Aftercooled (TTA) | More |
Compression Ratio | 16.5:1 16.5:1 | More |
Combustion System | Direct Injection Direct Injection | More |
Rotation from Flywheel End | Counterclockwise Counterclockwise | More |
Cooling System - Capacity | 15.2 L (16 qt) 15.2 L (16 qt) | More |
Lube System - Refill | 13-16 L (13.7-16.9 U.S. qts) 13-16 L (13.7-16.9 U.S. qts) | More |
Height | 907 mm (35.7 in) 907 mm (35.7 in) | More |
Length | 1063.7 mm (41.9 in) 1063.7 mm (41.9 in) | More |
Weight - Net Dry - Basic Operating Engine Without Optional Attachments | 715 kg (1576 lb) 715 kg (1576 lb) | More |
Width | 753-820.2 mm (29.6-32.3 in) 753-820.2 mm (29.6-32.3 in) | More |
Diameter | 287-337.8 mm (11.3-13.3 in) 287-337.8 mm (11.3-13.3 in) | More |
Height | 468-643.9 mm (18.4-25.3 in) 468-643.9 mm (18.4-25.3 in) | More |
Length | 771-918.7 mm (30.4-36.2 in) 771-918.7 mm (30.4-36.2 in) | More |
Weight | 90-134 kg (198-295.4 lb) 90-134 kg (198-295.4 lb) | More |
Width | 714.4-793 mm (28.1-31.2 in) 714.4-793 mm (28.1-31.2 in) | More |
World-class manufacturing capability and processes coupled with proven core engine designs assure reliability, quiet operation, and many hours of productive life.
Series turbocharging with smart wastegate available on specific ratings for fast response, high power, and increased torque.
Fuel consumption optimized to match operating cycles of a wide range of equipment and applications while maintaining low operating costs.
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.
Industry leading range of factory configurable ratings and options for agricultural, material handling, construction, mining, aircraft ground support, and other industrial applications.
Exceptional power density enables standardization across numerous applications. Multiple installation options minimize total package size. Ideal for equipment with narrow engine compartments.
Worldwide service delivers ease of maintenance and simplifies the servicing routine. Hydraulic tappets, multi-vee belts, minimum 5000-hour diesel particulate filter (DPF) ash service interval and 500-hour oil change intervals enable low-cost maintenance. Many service items have a choice of location on either side of the engine to enable choice of service access. The S·O·SSM program is available from your Cat dealer to determine oil change intervals and provide optimal performance.
Every Cat engine is manufactured to stringent standards in order to assure customer satisfaction.
Regeneration. Cat Regeneration System maximizes fuel efficiency during regeneration.
Regeneration. The DOC/SCR modular design offers a simple, compact package while providing high levels of performance. A DOC/DPF/SCR option is available for higher power machines. While in use, both DOC/SCR an DOC/DPF/SCR systems offer transparent operation to the user.