The Cat® C11 ACERT™ Industrial Diesel Engine is offered in ratings ranging from 242-336 bkW (325-450 bhp) @ 1800-2100 rpm. These ratings meet China Stage II, EPA Tier 3 equivalent, and EU Stage IIIA equivalent emission standards. Industries and applications powered by C11 ACERT engines include Agriculture, Ag Tractors, Aircraft Ground Support, Bore/Drill Rigs, Chippers/Grinders, Combines/Harvesters, Compactors/Rollers, Compressors, Construction, Cranes, Crushers, Dredgers, Forestry, Forklifts, General Industrial, Hydraulic Power Units, Irrigation Equipment, Loaders/Forwarders, Material Handling, Mining, Mobile Earthmoving Equipment, Paving Equipment, Pumps, Shovels/Draglines, Specialty Ag Equipment, Sprayers, Surface Hauling Equipment, Trenchers and Underground Mining Equipment.


Power Rating
Minimum Power 325 BHP
Maximum Power 450 BHP
Rated Speed 1800-2100 rpm

Emission Standards
Emissions China Stage II, U.S. EPA Tier 3 Equivalent, EU Stage IIIA Equivalent

Engine Configuration Inline 6, 4-Stroke-Cycle Diesel
Bore 130 mm (5.12 in)
Stroke 140 mm (5.51 in)
Aspiration Turbocharged Aftercooled (TA)
Displacement 11.1 L (677.36 in³)
Compression Ratio 17.2:1
Combustion System Direct Injection
Rotation from Flywheel End Counterclockwise

Engine Dimensions - Approximate
Height 1186 mm (46.7 in)
Length 1203 mm (47.4 in)
Weight - Net Dry - Basic Operating Engine Without Optional Attachments 930 kg (2050 lb)
Width 1054.4 mm (41.5 in)