The Cummins Onan G 18 generator is listed with standby output of 286 kW, 50 Hz operation, and 24 V output.
Generator • 50 Hz
Key specifications
Useful generator charts
Charts are shown only when this model has enough usable source data.
125.8 kW
45.1 kW
286 kW
260 kW
How the Cummins Onan G 18 compares
This compares the supplied numeric specification with Cummins Onan generators in the same broad standby-power class where enough comparable data exists.
About 23% above the similar-output Cummins Onan average. Around the 72nd percentile for this field.
About 62% below the similar-output Cummins Onan average. Around the 4th percentile for this field.
About 5% below the similar-output Cummins Onan average. Around the 52nd percentile for this field.
Generator information
| Manufacturer | Cummins Onan |
|---|---|
| Model | G 18 |
| Generator type | Generator |
| Frequency | 50 Hz |
Electrical output
| Standby power | 286 kW |
|---|---|
| Prime power | 260 kW |
| Voltage options | 24 V |
Engine, cooling and controls
| Engine model | Cummins/Onan L9-G18 |
|---|---|
| Engine displacement | 543 cu in (8.9 L) |
| Aspiration / cooling | Turbocharged & Charge Air Cooled |
| Rated engine speed | 1500 rpm |
| Engine oil capacity | 7.26 gal (27.5 L) |
| Engine coolant capacity | 5.4 gal (20.5 L) |
| Oil capacity | 7.26 gal (27.5 L) |
| Coolant capacity | 5.4 gal (20.5 L) |
| Maximum ambient | 71.2 / 67.9 °C |
Physical specifications
| Dry weight | 2, 273 lb (1, 031 kg) |
|---|---|
| Dimensions (L × W × H) | 70.4 × 50.8 × 62.5 in (1787 × 1290 × 1588 mm) |
Fuel consumption
| Standby | 18.4 gal/h (70 L/h) @ 100% |
|---|---|
| Prime | 19.9 gal/h (75 L/h) @ 100% |
Disclaimer: Specifications should be verified against the official owner’s or service manual and confirmed on the Cummins North America generator website.