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The 8CM34DF is based on the successful CM32C medium speed engine, Caterpillar Motoren designed the CM34DF to meet and exceed the CM32C reliability and lifetime expectations, while maintaining its class leading position regarding operational efficiency and reliability. The CM34DF is an ideal solution as main power for offshore production platforms and top sides. The CM34DF clean design allows fast and easy access to system and components, supporting the operation, service and maintenance simplicity. Designed to operate on gaseous fuel with methane numbers down to MN 50 and liquid fuels as MGO, MDO, heavy fuels and crude oil. The CM34DF is certified to IMO Tier II standards and meets proposed IMO Tier III emissions levels while operating in gas mode. Care and attention was paid to customers demand for a safe and reliable operation at varying engine loads and gas qualities.
| Minimum Rating | 4800 kV·A 3840 ekW |
| Maximum Rating | 4800 kV·A 3840 ekW |
| Emissions | IMO Tier II IMO Tier II |
| Displacement | 20382 in³ 334 l |
| Bore | 13.4 in 340 mm |
| Aspiration | Turbocharged Aftercooler Turbocharged Aftercooler |
| Stroke | 18.1 in 460 mm |
| Weight | 187000 lb 93.5 ton (US) |
| Engine Control | Electronic Electronic |
| Width | 102.4 in 2600 mm |
| Height | 213.1 in 5413 mm |
| Length | 425 in³ 10784 mm |
