Caterpillar C18 industrial diesel engine
| Engine Type: | 6 – Cylinder; In – line; 4 – Cycle |
| Displacement: | 18.1 l |
| Aspiration: | Turbocharged and Aftercooled (TA) |
| Bore: | 145 mm |
| Stroke: | 183 mm |
| Combustion System: | Direct Injection |
| Compression Ratio: | 16.0:1 |
| Rotation (Viewed from Flywheel): | Counterclockwise |
Caterpillar
Caterpillar C18 industrial diesel engine application scenarios
The Cat C18 industrial diesel engine offers power ratings ranging from 429-522 bkW (575-700 bhp) at 1800-1900 rpm. Industries and applications powered by the C18 engine include agriculture, agricultural tractors, aircraft ground support, drillers/borers, crushers/grinders, compactors/rollers, compressors, construction, cranes, dredges, forestry, general industry, hydraulic power units, irrigation equipment, material handling, mining, mobile earthmoving equipment, paving equipment, pumps, hydraulic shovels/draglines, surface transport equipment, and trenchers.
| Engine Model | MAX power | Maximum torque | MIN power |
| C18 China NR4 (<560kW) | 470 KW | 2953 Nm @ 1300 rpm | 429 KW |
| C18-1 | 597 kW | 3655 Nm @ 1400 rpm | 429 KW |
| C18-2 | 597 KW | 3710 Nm @ 1300 rpm | 563 KW |
| C18-3 | 597 KW | 3710 Nm @ 1300 rpm | 429 KW |
