Specifications
| Fuel | Natural gas/Propane |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 70 kW |
| Standby kVA | 88 |
| Emissions | EPA |
| Controller | Enovations 4G LDI, PC 1.1, PC 2.3, PowerCommand 1.1 |
| Oil capacity | 15.1 L |
| Voltage options | 120/240 V, 120/208 V, 277/480 V, 347/600 V, 127/220 V |
| Phase | 1-phase,3-phase |
| Battery group | 34 |
| Battery cranking | 850 CCA |
| Battery voltage | 12 V |
| Coolant capacity | 16 L |
| Max ambient | 50 °C |
| Dimensions (L×W×H) | 2489×1016×1473 mm |
| Dry weight | 1111 kg |
Engine
| Oil capacity | 15.1 L |
|---|---|
| Coolant capacity | 16.0 L |
| Displacement | 5.9 L |
| Aspiration | Naturally aspirated or turbocharged |
| Rated speed | 1800 rpm |
Maintenance & consumables
for the Cummins/Onan QSJ5.9G| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | 250 hr | find | ||
| Fuel filter | Check fuel lines and hoses: Visually check for leaks, worn or damaged hoses. To replace, contact your authorized distributor. | — | 24 hr | find | |
| Oil filter | Replace engine oil and filters. Refer to the Engine Oil section for the procedure. | — | 250 hr | find | |
| Belt | Checking drive belt condition and tension: Visually check belt for evidence of wear or slippage. To replace, contact your authorized distributor. | — | 24 hr | find | |
| Coolant | Starts to open within 2 °F (1 °C) of 180 °F (82 °C); Fully open within 2 °F (1 °C) of 203 °F (95 °C); Flow valve and flange clearance (minimum): 0.26 in (6.6 mm) | — | 500 hr | ||
| Oil | Replace engine oil and filters. Refer to the Engine Oil section for the procedure. | — | 250 hr |
Common questions
What is the power rating of the Cummins/Onan C70 N6?
The Cummins/Onan C70 N6 is rated 70 kW standby (88.0 kVA).
What engine does the Cummins/Onan C70 N6 use?
The Cummins/Onan C70 N6 is powered by the Cummins/Onan QSJ5.9G engine.
What fuel does the Cummins/Onan C70 N6 use?
The Cummins/Onan C70 N6 runs on Natural gas/Propane.
What is the oil capacity of the Cummins/Onan C70 N6?
The Cummins/Onan QSJ5.9G engine in the Cummins/Onan C70 N6 has an oil capacity of 15.1 liters.
Troubleshooting
8Fault codes
| Code | Meaning |
|---|---|
| Code 141 | - Oil pressure sensor output out of range low |
| Code 143 | - Engine oil pressure low (warning) |
| Code 144 | - Engine coolant temperature out of range low (warning) |
| 2972 | Field Overload (Shutdown) |
| 5134 | Unknown Shutdown at Idle |
| 5365 | Fault Code on Secondary Source (Information that the Fueling Has Been Shifted to Secondary Source) |
| 5669 | Engine Combustion (Shutdown) |
| 6518 | Cold Start Idle Active (Event) |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
4| Part # | Description | Qty | System | |
|---|---|---|---|---|
| A026M166 | accessory seal kit | Seal | PartsGeek | |
| B180313494 | Onan C50N6 March Inspection | 1 | Service type | PartsGeek |
| 3824510 | electronic cleaner | Service part / kit | PartsGeek | |
| A047A982 | EControls GCP E-Com USB interface cable | Service part / kit | PartsGeek |
Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Prime | 100% | 7.77 |
Available documents
Spec sheet — Cummins-C100N6 QSJ5.9G (Cummins/Onan)Spec sheet — NAS-6092-EN (Cummins/Onan)Owner's manual — Generator with QSJ5.9 Install (Cummins/Onan)Service manual — C60N6 Installation Manual (Cummins/Onan)Service manual — C80N6 Service Manual (Cummins/Onan)