The Cummins Onan C65D6 generator is listed with standby output of 74 kW, 50 Hz operation, 7 available voltage configurations, A (U) / B (V) / C (W), and sound level of 901.0 dBA.
Generator • 50 Hz • A (U) / B (V) / C (W)
Key specifications
Useful generator charts
Charts are shown only when this model has enough usable source data.
26.5 kW
31.8 kW
74 kW
67 kW
How the Cummins Onan C65D6 compares
This compares the supplied numeric specification with Cummins Onan generators in the same broad standby-power class where enough comparable data exists.
About 20% below the similar-output Cummins Onan average. Around the 29th percentile for this field.
About 22% below the similar-output Cummins Onan average. Around the 56th percentile for this field.
About 1100% above the similar-output Cummins Onan average. Around the 99th percentile for this field.
About 31% below the similar-output Cummins Onan average. Around the 21st percentile for this field.
Generator information
| Manufacturer | Cummins Onan |
|---|---|
| Model | C65D6 |
| Generator type | Generator |
| Frequency | 50 Hz |
Electrical output
| Standby power | 74 kW |
|---|---|
| Prime power | 67 kW |
| Standby kVA | 81.0 |
| Voltage options | 480/277 V, 380/220 V, 220/127 V, 440/254 V, 416/240 V, 240/139 V, 208/120 V |
| Phase | A (U) / B (V) / C (W) |
| Power factor | 0.8 |
Engine, cooling and controls
| Engine model | Cummins/Onan 4BT3.9-G4 |
|---|---|
| Engine displacement | 239 cu in (3.92 L) |
| Aspiration / cooling | Turbocharged |
| Rated engine speed | 1500 rpm |
| Engine oil capacity | 2.88 gal (10.9 L) |
| Engine coolant capacity | 5.6 gal (21.2 L) |
| Oil capacity | 2.88 gal (10.9 L) |
| Coolant capacity | 1.9 gal (7.2 L) |
| Maximum ambient | 86 °F (30 °C) |
| Controller | PowerCommand |
| Emissions | TIER 1 |
Physical specifications
| Dry weight | 2, 791 lb (1, 266 kg) |
|---|---|
| Wet weight | 2, 857 lb (1, 296 kg) |
| Dimensions (L × W × H) | 64.6 × 36.7 × 59.5 in (1642 × 932 × 1512 mm) |
| Sound level | 901.0 dBA |
Battery
| Battery group | 76 |
|---|
Fuel system and runtime
| Fuel tank | 52.8 gal (200 L) |
|---|
Fuel consumption
| Standby | 19 L/h |
|---|---|
| Prime | 17 L/h |
Maintenance and service parts
| Engine oil | Specification: Lubrication system oil capacity; Capacity: 10.9 l |
|---|---|
| Oil filter | Specification: Oil and fuel filter fitted, water separator |
| Air filter | Specification: Normal duty air filter |
| Coolant | Specification: Coolant capacity (only engine); Capacity: 7.2 l |
Disclaimer: Specifications should be verified against the official owner’s or service manual and confirmed on the Cummins North America generator website.