C7.1

Power Range 400 - 500 bhp (298 - 373 bkW)

Speed Range 2900 rpm

Rotation from Flywheel End Counterclockwise

C32B Sequential Turbo

Power Range 1800-2400 bhp (1342-1790 bkW)

Speed Range 2300 rpm

Emissions IMO II/III, U.S. EPA Tier 3 (recreational), RCD, China II

C12

Power Range 340 - 705 bhp (254 - 526 bkW)

Speed Range 1800 - 2300 rpm

Emissions IMO I, IMO II

C18

Power Range 803 - 1136 bhp, 599 - 847 bkW

Speed Range 2300 rpm

Emissions EPA Tier 3, IMO II

C32

Power Range 1600-1900 bhp (1193-1417 bkW)

Speed Range 2300 rpm

Emissions IMO II, U.S. EPA Tier 3 Recreational, RCD, China Stage II