C18
- Bore
- 5.7 in / 145 mm
- Stroke
- 7.2 in / 183 mm
- Displacement
- 1106 in³ / 18.1 l
The Cat® C18 commercial propulsion engine is built to deliver reliable, high-output power for workboats operating in demanding marine environments. Its inline 6-cylinder, four-stroke diesel design provides the durability and performance needed for long hours, heavy-duty duty cycles and consistent propulsion. Supported by the global Cat dealer network, the C18 helps keep vessels productive, serviceable and ready for the next job.
| Power Rating | |
|---|---|
| Power Range | 454 - 1136 bhp (339 - 847 bkW) |
| Engine Specifications | |
|---|---|
| Application | Workboat |
| Speed Range | 1500 - 2100 rpm |
| Emissions | U.S. EPA Tier 3 Commercial, IMO II, EU IWW, EU Stage V, China II |
| Aspiration | 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 |
| Oil Change Interval | 250 / 500 |
| Refill Capacity | 49 / 68 l |
| Configuration | In-line 6, 4-Stroke-Cycle Diesel |
| Cooling | Heat Exchanger or Keel Cooled |
| Governor | Electronic |
| Flywheel Housing | SAE No. 0 (136 teeth) or SAE No. 1 (113 teeth) |
| Dimensions & Weights | |
|---|---|
| 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 |