CAT C18 ACERT PROPULSION ENGINE (IMO II)
The C18 ACERT marine propulsion engine has commercial application ratings of 454-715 bhp that meet IMO II & EU Stage IIA emissions regulations, and 469-715 bhp that meet EPA Tier 3, IMO II and EU Stage IIIA emissions regulations. In addition to the benefits the C18 ACERT’s advanced marine engine technology brings, you welcome aboard legendary Cat product support. No matter where your spirit of adventure takes you, rest assured the Cat Dealer Network is close by.
SPECIFICATIONS
Power Range454-715 bhp (339-533 bkW)
Speed Range1800-2100 rpm
ConfigurationIn-line 6, 4-Stroke-Cycle Diesel
power rating
Power Range454-715 bhp (339-533 bkW)
engine specifications
Speed Range1800-2100 rpm
ConfigurationIn-line 6, 4-Stroke-Cycle Diesel
AspirationTA, TTA
Bore145.0 mm
Stroke183.0 mm
Displacement18.1 L
Rotation (from flywheel end)Counterclockwise
EmissionsIMO II, EU IIIA
dimensions
WeightsMinimum Length
18540 mm
Dimensions Weights
maximum length
19312.0 mmDimensions
weights
Minimum Width1134.0 mm
dimensions
WeightsMaximum Width
12040 mm
Dimensions Weights
minimum height
1198.0 mmDimensions
weights
Maximum Height1300.0 mm
dimensions
WeightsMaximum Dry Weight
1950 kg
Dimensions Weights
minimum dry weight
1814.0 kg
C18 ACERT IMO II STANDARD EQUIPMENT
- 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 - watercooled 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
Fuel System - front service simplex fuel system###fuel transfer pump gear driven###manual fuel priming pump###hybrid fuel line design
Lube System - front service simplex oil system###center sump oil pan deep 500 hour oil change interval shallow 250 hour oil change interval###front and top service oil filler locations###front service dipstick###oil pump gear driven
Mounting System - front support adjustable
Power Take-Offs - polyv groove for alternator drive###note there are no standard power takeoffs available
General - front damper guard###front service engine###common electrical bonding point###engine does not ship with zinc components###engine is certified to d2e2 emissions cycles###certified to imo ii marine commercial propulsion e3 cycle emission standards###certified to eu stage iiia and ccnr stage ii e3 cycle emissions standards###note ratings listed below can also be used in recreational pleasure craft applications
Control System - programmable low idle###wosr wide operating speed range available for epa tier 3 b and c ratings###adjustable high idle tel epa tier 3 wosr ratings only###electronic diagnostics and fault logging###engine and transmission monitoring speed temperature pressure###electronic fuelair ratio contro###engine protection mode for extended ambient conditions epa tier 3 ratings only###torque limiting functionality for wosr ratings only###70pin customer connector###three types of throttle inputs primary secondary pwm 05v 420ma +
C18 ACERT IMO II OPTIONS
- exhaust system
Dry Elbows
Water-Cooled Elbows
Flexible Fitting
Flange
Muffler
Muffler Spark Arresting - air inlet system
Air Inlet Adapter - charging system
Battery Chargers
Charging Alternators
Alternator Mounting Group
Ammeter - control system
MECP I
Caterpillar Alarm System and Protection - cooling system
AUX Expansion Tank Flange Kit - fuel system
Duplex Fuel Filters
Flexible Fuel Lines
Fuel Cooler
Primary Fuel Filters - instrumentation
Instrument Panels: Marine Power Display, Color Marine Power Display, Color MPD Dual Display Harness, MPD Wiring Connection Kit
OEM Wiring Harness
Engine to Engine Harness
Gauges
Transmission Sensors
Oil Level Sensor - lube system
Duplex Oil Filters
Transmission Oil Cooler
Sump Pump - mounting system
Vibration Isolators
Front Support
Rear Support - power takeoffs
Note: PTO Options Require Torsional Vibration Analysis
Crankshaft Pulleys
Front Stub Shaft
Hydraulic Pump Drive Adapter
Front Enclosed Clutch - protection system
Marine Classification Society and SOLAS
Marine Classification Society and Fire Resistance - starting system
Electric Starting Motors - Single 24 Volt
Air Starting Motor
Air Start Accessories
Starting Aids - JW Heaters
Battery Sets - 24 Volt - Dry