The C18 ACERT marine propulsion engine has commercial application ratings of 475-725 mhp (469-715 bhp) at 1800-2100 rpm that meet U.S. EPA Tier 3, IMO II, and EU IW emissions regulations. In addition to meeting the stricter EPA Tier 3 emissions, this engine now offers a fresh water aftercooled option for the commercial propulsion and auxiliary engines and genset packages. From fishing to offshore and everything in between, you can be confident that we have the solution to fit your needs.
C18 ACERT commercial propulsion engines now incorporate a separate circuit aftercooling system (SCAC) for all configurations with A through D ratings
AIR INLET SYSTEM
Separate circuit after-cooled (SCAC)
Open Crankcase Ventilation (OCV) system
Turbocharger, jacket water cooled
Turbocharger inlet, 152 mm (6 in) OD straight connection
COOLING SYSTEM
Separate Circuit After-Cooling (SCAC) for both HEX and Keel cooled engines
Engine JW and SCAC Shell & Tube Heat Exchangers for HEX cooled engines
SCAC pump, gear driven, for HEX cooled engines only
Jacket water pump, gear driven
Sea water pump, bronze impeller, gear driven
SCAC and JW shunt tanks for maintaining proper pump inlet pressures
EXHAUST SYSTEM
Water-cooled exhaust manifold & turbocharger
152 mm (6 in) round flanged outlet
FLYWHEELS & FLYWHEEL HOUSINGS
Flywheel Housing, SAE No. 0
Flywheel, 18 inch, 136 teeth
SAE standard rotation
SAE No. 1, Flywheel: 14 inch, 113 teeth