C18
Cat C18 Auxiliary/Generator Set Engine
DESCRIPTION
C18 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 EPA Tier 3, IMO II/III, EU IWW, and China II compliant ratings are available with heat exchanger or keel cooled options. All major MCS type approvals are available from the factory.Separate circuit aftercooling system
The primary advantage of the separate circuit aftercooling system (SCAC) is that no sea water circulates through the aftercooler
Emissions
EPA Tier 3 compliant, IMO II and EU IWW compliant
Cooling system
Heat exchanger and Keel cooled options for all ratings
Turbo Configurations
Single turbo configurations for all ratings
Competitive size and weight
Marine Certifications
All major MCS type approvals available from factory
- Standard Equipment
- Optional Equipment
- Specs
- Docs
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)
- Programmable ECM Shutdowns for: High Jacket Water Coolant Temp Low Engine Oil Pressure Engine Overspeed
- 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
- Water-cooled 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: 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
- Poly-V groove for alternator drive
- 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
Optional Equipment
- 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 24 Volt 70/105 AMP
- Alternator Mounting Group
- Ammeter
- CONTROL SYSTEM
- MECP I - Marine Engine Control Panel
- Caterpillar Alarm and Protection
- Load Sharing Attachment
- COOLING SYSTEM
- Aux Expansion Flange Kit
- FUEL SYSTEM
- Duplex Fuel Filters
- Fuel Cooler
- Fuel Water Separator
- Flexible Fuel Lines
- INSTRUMENTATION
- Instrument Panels
- OEM Wiring Harness
- Exhaust Temp Sensor
- Oil Level Sensor
- LUBE SYSTEM
- Duplex Oil Filters
- Sump Pump
- POWER TAKE-OFFS
- Crankshaft Pulleys
- Front Stub Shaft
- Hydraulic Pump Drive Adapter
- Front Enclosed Clutch
- PROTECTION SYSTEM
- Marine Classification Society and SOLAS
- STARTING SYSTEM
- Electric Starting Motor - Single 24 Volt
- Air Starting Motor
- Air Start Accessories
- Starting Aids - JW Heaters 120/240V
- Battery Sets - 24 Volt - Dry
- MOUNTING SYSTEM
- Front Support
- Rear Support
- PACKING
- Engine Protective Cover
- Storage Preservation
- Export Packing
Specs
Overview
Long Name:
Cat C18 Auxiliary/Generator Set Engine
Name:
C18
Brand:
Caterpillar
Status:
Current
Power Rating
Power Range
404 - 803 hp
Generator Set Specifications
Frequency
50 / 60
Engine Specifications
Emissions
IMO II/III, EPA T 3, EU IWW, EU Stage V, China II
Power Rating
Minimum Rating
404 BHP / 465 bkW
Maximum Rating
803 BHP / 599 bkW
Engine Specifications
Aspiration
TA, TTA
Bore
5.7 in / 145 mm
Displacement
1106 in³ / 18.1 l
Configuration
In-Line 6, 4-Stroke-Cycle Diesel
Stroke
7.2 in / 183 mm
Rotation from Flywheel End
Counterclockwise
Dimensions & Weights
Length
73 in / 1854 mm
Height
51.2 in / 1300 mm
Dry Weight
1950 lb / 4299 kg
Width
44.6 in / 1134 mm
SEE HOW C18 COMPARES AGAINST FREQUENTLY COMPARED PRODUCTS.
Auxiliary Engines
C18
- Brand
- Caterpillar
- Status
- Current
- Power Range
- 404 - 803 hp
- Frequency
- 50 / 60
- Emissions
- IMO II/III, EPA T 3, EU IWW, EU Stage V, China II
- Aspiration
- TA, TTA
- Bore
- 5.7 in / 145 mm
- Configuration
- In-Line 6, 4-Stroke-Cycle Diesel
- Stroke
- 7.2 in / 183 mm
Selected Model
Auxiliary Engines
3516E
- Brand
- Caterpillar
- Status
- Current
- Power Range
- 1921 - 2368 bkW
- Frequency
- 50 / 60
- Emissions
- U.S. EPA Tier 4, IMO II/III
- Aspiration
- Turbocharged - Aspirator
- Bore
- 6.69 in / 170 mm
- Configuration
- V 16, 4-Stroke-Cycle Diesel
- Stroke
- 8.46 in / 215 mm
Auxiliary Engines
C280
- Brand
- Caterpillar
- Status
- Current
- Power Range
- 1730 - 5420 bkW
- Frequency
- 50 / 60
- Emissions
- U.S. EPA Tier 4
- Aspiration
- Turbocharged - Aspirator
- Bore
- 11 in / 280 mm
- Configuration
- In-Line 6, V 8, V 12, V 16, 4-Stroke-Cycle Diesel
- Stroke
- 11.8 in / 300 mm