Specifications
| Fuel | diesel |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 278 kW |
| Standby kVA | 348 |
| Prime power | 256 kW |
| Emissions | Tier III |
| Controller | Microprocessor-based controller |
| Voltage options | 120/208 V, 277/480 V |
| Phase | 3 |
| Circuit breaker | 1200 A |
| Battery cranking | 1000 CCA |
| Battery quantity | 2 |
| Max ambient | 48.89 °C |
| Dimensions (L×W×H) | 3960×1520×2290 mm |
| Dry weight | 3646 kg |
| Sound level | 68.0 dBA @ 7.01 m |
| Fuel tank | 1737.3 L |
| Tank runtime | 24 hr |
Engine
| Coolant capacity | 70.9 L |
|---|---|
| Displacement | 9.0 L |
| Aspiration | Turbocharged |
| Rated speed | 1800 rpm |
Same engine, other brands
1 brandThe John Deere RG6090HF485 in this set also powers 2 generator sets sold under 1 other brand. Service parts and maintenance intervals for the engine are shared; enclosure, alternator, controller and ratings are not.
| Brand | Models |
|---|---|
| Magnum | MMG320, MMG320 Super Start |
Maintenance & consumables
for the John Deere RG6090HF485| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | paper element | — | |||
| Battery | 1000 CCA | — | |||
| Coolant | Consult the engine operation and maintenance manual for coolant recommendations and proper mixture | — | |||
| Oil | John Deere PLUS-50 or equivalent | — |
Common questions
What size generator is the Generac MMG320?
The Generac MMG320 is rated 278 kW standby (348.0 kVA).
Which engine powers the Generac MMG320?
The Generac MMG320 is powered by the John Deere RG6090HF485 engine.
Is the Generac MMG320 diesel or gas?
The Generac MMG320 runs on diesel.
What is the cooling system capacity of the Generac MMG320?
The Generac MMG320 cooling system holds 70.9 liters (18.7 US gallons) for the engine, per the manufacturer specification sheet.
What is the continuous rating of the Generac MMG320?
The Generac MMG320 is rated 256 kW prime (320 kVA), against 278 kW standby.
How loud is the Generac MMG320?
The Generac MMG320 is rated at 68.0 dBA at 7.01 m, per the manufacturer specification sheet.
How much does the Generac MMG320 weigh?
The Generac MMG320 has a dry weight of 3646 kg (8038 lb).
How big is the fuel tank on the Generac MMG320?
The Generac MMG320 has a 1737.3 liter (459 US gallon) fuel tank, giving about 24 hours of runtime.
What voltages is the Generac MMG320 available in?
The Generac MMG320 is offered in 120/208 V, 277/480 V, 3-phase.
What battery does the Generac MMG320 use?
The Generac MMG320 uses 2 batteryies, 1000 CCA, per the manufacturer specification sheet.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Prime | 50% | 34.1 | 9.0 |
| Prime | 75% | 50.7 | 13.4 |
| Prime | 100% | 67.8 | 17.9 |