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Caterpillar
Cat C18 ACERT Propulsion Engine (Tier 3)
The C18 ACERT marine propulsion engine has commercial application ratings of 454 – 803 bhp at 1800 – 2100 rpm that meet U.S. EPA Tier 3, IMO II, EU IWW, and China II 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.
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Specifications
Power Rating
| Spec | Value |
|---|---|
| Power Range | 454 - 1136 bhp (339 - 847 bkW) 454 - 1136 bhp (339 - 847 bkW) |
Engine Specifications
| Spec | Value |
|---|---|
| Speed Range | 1500 - 2100 rpm 1500 - 2100 rpm |
| Emissions | U.S. EPA Tier 3 Commercial, IMO II, EU IWW, EU Stage V, China II U.S. EPA Tier 3 Commercial, IMO II, EU IWW, EU Stage V, China II |
| Aspiration | Turbocharged - Aftercooled Turbocharged - Aftercooled |
| Bore | 5.7 in 145 mm |
| Stroke | 7.2 in 183 mm |
| Displacement | 1106 in³ 18.1 l |
| Rotation from Flywheel End | Counterclockwise Counterclockwise |
| Oil Change Interval | 250 / 500 250 / 500 |
| Refill Capacity | 49 / 68 l 49 / 68 l |
| Configuration | In-line 6, 4-Stroke-Cycle Diesel In-line 6, 4-Stroke-Cycle Diesel |
| Cooling | Heat Exchanger or Keel Cooled Heat Exchanger or Keel Cooled |
| Governor | Electroinc Electroinc |
| Flywheel Housing | SAE No. 0 (136 teeth) or SAE No. 1 (113 teeth) SAE No. 0 (136 teeth) or SAE No. 1 (113 teeth) |
Dimensions & Weights
| Spec | Value |
|---|---|
| Minimum Dry Weight | 4000 lb 1814 kg |
| Minimum Length | 73 in 1854 mm |
| Minimum Height | 47.2 in 1198 mm |
| Maximum Height | 51.2 in 1300 mm |
| Minimum Width | 44.6 in 1134 mm |
| Maximum Width | 47.4 in 1204 mm |
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
Air Start Accessories
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
- SAE No. 0, Flywheel SAE. 18, 136 teeth
- 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
- Poly-V groove for alternator drive
- NOTE: There are no standard power take-offs available
GENERAL
- Front damper guard
- Front service engine
- Common electrical bonding point
- Engine does not ship with zinc components
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 fuel/air ratio control
- Engine Protection Mode for extended ambient conditions – EPA Tier 3 Ratings Only
- Torque Limiting functionality for WOSR ratings only
- 70-pin customer connector
- Three types of throttle inputs (primary/ secondary PWM, 0-5V, 4-20mA +/-
Optional Equipment
EXHAUST SYSTEM
- Dry Elbows
- Water-Cooled Elbows
- Flexible Fitting
- Outlet 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
- CAT Alarm and Protection
COOLING SYSTEM
- Aux expansion tank flange kit
Exhaust Temp Sensor
Heat Exchanger Pressure Sensor
FUEL SYSTEM
- Duplex Fuel Filters
- Flexible Fuel Lines
- Fuel Cooler
- Fuel/Water Separator
INSTRUMENTATION
- Instrument Panels
- OEM Wiring Harness
- Engine to Engine Harness
- Transmission Sensors
- Oil Level Sensor
Instrumentation
- Digital Tachometer
LUBE SYSTEM
- Duplex Oil Filters
- Transmission Oil Cooler
- Sump Pump
MOUNTING SYSTEM
- Vibration Isolators
- Front Support
- Rear Support
POWER TAKE-OFFS
- NOTE: PTO options require torsional vibrations analysis
- 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
- Single Air Starting Motor
- Starting Aids – JW Heater 120 / 240V
Single Electric 24V Starter
Battery Sets - 24 Volt - Dry
Single Air Starting Motor
PACKING
- Engine Protective Cover
- Storage Preservation
- Export Packing