Specifications
| Fuel | Diesel |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 125 kW |
| Standby kVA | 156 |
| Prime power | 113 kW |
| Emissions | EPA Tier 3 |
| Controller | 2.3, PowerCommand 1.1 |
| Oil capacity | 18.9 L |
| Voltage options | 120/240 V, 120/208 V |
| Phase | 1 / 3 |
| Rated current | 800 A |
| Circuit breaker | 600 A |
| Battery cranking | 850 CCA |
| Battery voltage | 12 V |
| Battery quantity | 2 |
| Max ambient | 122 °C |
| Dimensions (L×W×H) | 1415×56×2867 mm |
| Dry weight | 1470 kg |
Engine
| Oil capacity | 18.9 L |
|---|---|
| Displacement | 6.69 L |
| Aspiration | direct injection |
| Rated speed | 1500 rpm |
Maintenance & consumables
for the Cummins/Onan QSB7 series| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Filter, Air − Normal Duty | A047M180 | Amazon eBay $236.52 PartsGeek | ||
| Fuel filter | Strata pore fuel filter | — | 500 hr | find | |
| Oil filter | — | 1000 hr | find | ||
| Belt | — | 1000 hr | find | ||
| Coolant | 26.95 | — | |||
| Oil | 18.9 | — |
Common questions
What is the power rating of the Cummins/Onan C125 D6D?
The Cummins/Onan C125 D6D is rated 125 kW standby (156.0 kVA).
What engine does the Cummins/Onan C125 D6D use?
The Cummins/Onan C125 D6D is powered by the Cummins/Onan QSB7 series engine.
What fuel does the Cummins/Onan C125 D6D use?
The Cummins/Onan C125 D6D runs on Diesel.
What is the oil capacity of the Cummins/Onan C125 D6D?
The Cummins/Onan QSB7 series engine in the Cummins/Onan C125 D6D has an oil capacity of 18.9 liters.
What air filter does the Cummins/Onan C125 D6D use?
The Cummins/Onan C125 D6D uses air filter part number A047M180.
Parts
9| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 4915973 | Alternator Manual | Alternator | PartsGeek | |
| A047M180 | Filter, Air − Normal Duty | 1 | Air filter | Amazon eBay $236.52 PartsGeek |
| A054E584 | Filter, Air − Heavy Duty | 1 | Air filter | Amazon eBay PartsGeek |
| A055Z870 | Filter, Air − Replacement − Heavy Duty | 1 | Air filter | Amazon eBay $251.32 PartsGeek |
| PI144D1 | Alternator Model | 1 | Alternator | PartsGeek |
| UC274C | Alternator Model | 1 | Alternator | PartsGeek |
| UC274K | Alternator Model | 1 | Alternator | PartsGeek |
| 518-0601 | Sealant, Thread (6 ml Tube) | 1 | Service part / kit | PartsGeek |
| V2403-M-E3BG | Engine Model | 1 | 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 | 9.0 | ||
| Standby | 4.2 |
Available documents
Spec sheet — 0058677 (Cummins/Onan)Spec sheet — 0069812Spec sheet — NAS-6370-EN (Cummins/Onan)Spec sheet — cummins ag diesel spec sheet (Cummins/Onan)Spec sheet — eds-3043 (Cummins/Onan)Reference — 51070-01Parts manual — C175D6D Parts Manual (Cummins/Onan)