Cat® C7.1 Diesel Engine

Cat® C7.1 Diesel Engine

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.

  • Maximum Power 217 HP

  • Maximum Torque 663 lb-ft @ 1400 rpm

  • Emissions China Nonroad Stage III, UN ECE R96 Stage IIIA

  • Rated Speed 1950-2200 rpm

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Product Specifications


Power Rating

  • Maximum Power 217HP

  • Maximum Torque 663lb-ft @ 1400 rpm

  • Minimum Power 150HP

  • Rated Speed 1950-2200 rpm

Emission Standards

  • Emissions China Nonroad Stage III, UN ECE R96 Stage IIIA

Engine Dimensions - Approximate

  • Height 32.3in

  • Length 44.9in

  • Weight - Net Dry - Basic Operating Engine Without Optional Attachments 1118lb

  • Width 28.4in


  • Aftertreatment -

  • Aspiration Turbocharged Aftercooled (TA)

  • Bore 4.1in

  • Combustion System Direct Injection

  • Compression Ratio 18.2:1

  • Displacement 427.7in³

  • Engine Configuration Inline 6, 4-Stroke-Cycle

  • Rotation from Flywheel End Counterclockwise

  • Stroke 5.3in



Standard Equipment

  • Standard air cleaners

  • 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

  • Diesel particulate filter and regeneration system supplied, with a range of inlet and outlet options

  • Wide choice of drivetrain interfaces, including SAE1, SAE2 or SAE3 configurations

  • Wide choice of sumps for different applications

  • 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.

  • Paint: Caterpillar yellow, with optional colors available at request

Optional Equipment