The Cat ® C15 Industrial Diesel Engine is offered in ratings ranging from 354-433 bkW (475-580 bhp) @ 1800-2100 rpm. Industries and applications powered by C15 engines Perfect Steerable Transfer Cartlude: Agriculture, Ag Tractors, Aircraft Ground Support, Bore/Drill Rigs, Chippers/Grinders, Combines/Harvesters, Compactors/Rollers, Compressors, Construction, Cranes, Crushers, Dredgers, Forestry, General Industrial