CAT C18 AUXILIARY/GENERATOR SET ENGINE (IMO II)
C18 ACERT auxiliary/generator set engines incorporate a separate circuit aftercooling system (SCAC) for all configurations. The primary advantage of the SCAC systsem is reduced aftercooler corrosion since no sea water circulates through the aftercooler. Many other improvements on these engines also contribute to minimizing owning and operating costs. The IMO II compliant ratings are available with heat exchanger or keel cooled options. All major MCS type approvals are available from the factory.
SPECIFICATIONS
Minimum Rating301.0 bkW
Maximum Rating492.0 bkW
ConfigurationIn-Line 6, 4-Stroke-Cycle Diesel
power rating
Minimum Rating301.0 bkW
Maximum Rating492.0 bkW
engine specifications
ConfigurationIn-Line 6, 4-Stroke-Cycle Diesel
AspirationTA, TTA
Bore145.0 mm
Stroke183.0 mm
Displacement18.1 L
Rotation (from flywheel end)Counterclockwise
dimensions
WeightsLength
18540 mm
Dimensions Weights
width
1134.0 mmDimensions
weights
Height1300.0 mm
dimensions
WeightsDry Weight
42990 kg
C18 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 - control system
Programmable low idle
Electronic diagnostics and fault logging
Electronic fuel/air ratio control
Engine Protection Mode for extended ambient conditions - EPA Tier 3 Ratings Only
70-pin customer connector
Three types of throttle inputs (primary/ secondary PWM, 0-5V, 4-20mA - 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###auxiliary water pump gear driven###sea water pump bronze impeller gear driven###scac and jw shunt tanks for maintaining proper pump inlet pressures
EXHAUST SYSTEM - 152 mm 6 in round flanged outlet###watercooled exhaust manifold
turbocharger - flywheels
FLYWHEEL HOUSINGS - flywheel housing sae no 0###flywheel 18 inch 136 teeth###sae standard rotation
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###front and top service oil filler locations###front service dipstick###oil pump gear driven
MOUNTING SYSTEM - front support adjustable
POWER TAKE-OFFS - hydraulic pump drive###crankshaft pulleys###front stub shaft###front enclosed clutch
GENERAL - front damper guard###front service engine###common electrical bonding point###engine does not ship with zinc components###note these engines are for constant speed generator set applications only and not to be used for variable speed applications
C18 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 - Marine Engine Control Panel
Caterpillar Alarm and Protection
Load Sharing Attachment - cooling system
Aux Expansion Tank Flange Kit - fuel system
Duplex Fuel Filters
Fuel Cooler
Primary Fuel Filters
Flexible Fuel Lines - instrumentation
Instrument Panels
OEM Wiring Harness
Gauges
Oil Level Sensor - lube system
Duplex Oil Filters
Sump Pump - power takeoffs
Crankshaft Pulleys
Front Stub Shaft
Hydraulic Pump Drive Adapter
Front Enclosed Clutch - protection system
Marine Classification Society and SOLAS - starting system
Electric Starting Motors - Single 24 Volt
Air Starting Motor
Air Start Accessories
Starting Aids - JW Heaters
Battery Sets - 24 Volt - Dry - mounting system
Front Support
REAR ENGINE SUPPORT - packing
Engine Protective Cover
Storage Preservation
Export Packing