Cat and MaK marine propulsion engines, generator sets, controls, parts and repower programs.
Caterpillar Marine Equipment Enhanced
Cat C18 Auxiliary/Generator Set Engine
Cat C18 in-line 6 marine auxiliary/generator set engine, 465–599 bkW, with separate circuit aftercooling, heat exchanger or keel cooling, and IMO II/III, EPA Tier 3, EU IWW/Stage V, China II ratings.
Description
The Cat C18 Auxiliary/Generator Set Engine is an 18.1 l in-line six-cylinder diesel for constant-speed marine generator set applications. All configurations use a separate circuit aftercooling (SCAC) system, so no sea water circulates through the aftercooler, reducing aftercooler corrosion.
Technical data
- Power: 465–599 bkW (404–803 hp); 50/60 Hz
- Configuration: in-line 6, 4-stroke-cycle diesel; TA or TTA aspiration
- Bore × stroke: 145 mm × 183 mm
- Displacement: 18.1 l (1106 in³)
- Dimensions (L × W × H): 1854 × 1134 × 1300 mm
- Emissions: IMO II/III, EPA Tier 3, EU IWW, EU Stage V, China II
- For constant-speed generator set use only, not variable-speed applications
Key features
- Heat exchanger or keel cooled options for all ratings; single-turbo configurations
- Gear-driven jacket water, auxiliary water, SCAC and bronze-impeller sea water pumps
- Water-cooled exhaust manifold and turbocharger; 152 mm (6 in) flanged exhaust outlet
- Electronic diagnostics, fault logging and fuel/air ratio control; 70-pin customer connector
- Throttle inputs: PWM, 0–5 V, 4–20 mA
- Programmable ECM shutdowns for high coolant temperature, low oil pressure and overspeed
- Front-service fuel and oil systems; deep (500 h) or shallow (250 h) oil change sump
- SAE No. 0 flywheel housing, 18 in flywheel
- All major marine classification society type approvals available from the factory
Options
- Dry or water-cooled elbows, mufflers (incl. spark arresting)
- 24 V charging alternators, marine engine control panel, Cat alarm and protection, load sharing
- Duplex fuel and oil filters, fuel cooler, fuel water separator
- Front stub shaft, hydraulic pump drive adapter, front enclosed clutch
- Electric or air starting, jacket water heaters
- Classification society and SOLAS packages
Specifications
| Power Range | 404 - 803 hp 404 - 803 hp |
|---|---|
| Minimum Rating | 404 BHP 465 bkW |
| Maximum Rating | 803 BHP 599 bkW |
| Emissions | IMO II/III, EPA T 3, EU IWW, EU Stage V, China II IMO II/III, EPA T 3, EU IWW, EU Stage V, China II |
| Aspiration | TA, TTA TA, TTA |
| Bore | 5.7 in 145 mm |
| Displacement | 1106 in³ 18.1 l |
| Configuration | In-Line 6, 4-Stroke-Cycle Diesel In-Line 6, 4-Stroke-Cycle Diesel |
| Stroke | 7.2 in 183 mm |
| Rotation from Flywheel End | Counterclockwise Counterclockwise |
| Length | 73 in 1854 mm |
| Height | 51.2 in 1300 mm |
| Dry Weight | 1950 lb 4299 kg |
| Width | 44.6 in 1134 mm |
| Frequency | 50 / 60 |
| Programmable ECM Shutdowns for | High Jacket Water Coolant Temp Low Engine Oil Pressure Engine Overspeed |
| Center sump oil pan | Deep 500 hour oil change interval, Shallow 250 hour oil change interval |
| NOTE | These engines are for constant speed generator set applications only, and NOT to be used for variable speed applications |
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