Specifications
| Fuel | Natural Gas / LP Liquid |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 259 kW |
| Standby kVA | 323 |
| Controller | ComAp digital controller |
| Oil capacity | 11.1 L |
| Alternator | Stamford/AvK HCI434C-311, HCI434D-311 |
| Voltage options | 480/277 V |
| Phase | 3 |
| Rated current | 338 A |
| Power factor | 0.8 |
| Circuit breaker | 600 A |
| Battery group | 8D |
| Battery cranking | min. 900 CCA CCA |
| Battery voltage | 12V (2), 24V series connection V |
| Battery quantity | 2 |
| Coolant capacity | 44 (50.0) L |
| Dry weight | 12195 kg |
Engine
| Oil capacity | 11.1 L |
|---|---|
| Coolant capacity | 44.0 L |
| Displacement | 18.27 L |
| Aspiration | Turbo CAC |
| Rated speed | 1800 rpm |
Maintenance & consumables
for the Power Solutions International D183TIC| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Coolant | 50/50 mix of coolant and water | — | |||
| Oil | SAE 15W-40 low ash, API CD/CF or higher | — | 250 hr | ||
| Spark plug | Gap 0.015 in (0.4 mm) | — |
Service intervals
1| Item | Action | Hours | Months | Notes |
|---|---|---|---|---|
| Engine Oil and Filter (initial) | Change | 50 hr | First service — Initial oil and filter change after first 50 hours or first 3 months |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Service specifications
1| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Gap | Spark plug gap | 0.015 | in (0.4 mm) |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Recommended fluids
| Fluid | Grade | Standard | Ambient | Capacity | Notes |
|---|---|---|---|---|---|
| Coolant | 50/50 mix of coolant and water | MGG280N2 38 qt (43.2 L) incl. engine; MGG350N2 44 qt (50.0 L) incl. engine | |||
| Engine oil | SAE 15W-40 low ash | API CD/CF or higher | MGG280N2 10.1 qt (38.1 L) incl. filter; MGG350N2 11.1 qt (42.1 L) incl. filter |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Common questions
What is the power rating of the Generac MGG350N2?
The Generac MGG350N2 is rated 259 kW standby (323.0 kVA).
What engine is in the Generac MGG350N2?
The Generac MGG350N2 is powered by the Power Solutions International D183TIC engine.
What kind of fuel does the Generac MGG350N2 run on?
The Generac MGG350N2 runs on Natural Gas / LP Liquid.
What's the oil capacity on a Generac MGG350N2?
The Power Solutions International D183TIC engine in the Generac MGG350N2 has an oil capacity of 11.1 liters.
What alternator comes on the Generac MGG350N2?
The Generac MGG350N2 uses a Stamford/AvK HCI434C-311, HCI434D-311 alternator.
Troubleshooting
6Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Engine Cranks But Will Not Start | No fuel. Low oil level. Restricted air flow. No spark. | Check that fuel valves are open. Low Oil Pressure Shutdown activated. Replenish oil to full. Check/replace air filter. Check/replace spark plug(s). |
| Engine Will Not Crank (Electric Start) | Dead battery. Emergency stop is acti-activated. | Remove batteries and trickle charge. Never jump start. Even if only one battery is bad, it is recommended that both batteries be replaced at the same time. Reset controller after an emergency stop. |
| Engine Starts But Will Not Run Smoothly | Fuel or ignition problem. | Refer to engine manual. Contact Generac Mobile Products Technical Service. |
| Engine Overheats | Excessive load. Debris or dirt buildup on engine/radiator. | Remove one or more electrical loads. Remove debris. Clean engine surfaces to allow cooling. |
| No Output Voltage | Circuit breaker tripped or failed. Internal failure of alternator. | Reset circuit breaker or replace if required. Check electrical connections. Contact Generac Mobile Products Technical Service. |
| High Output Voltage | Excessive speed (fixed speed mode). | Check engine for malfunction. Verify engine RPM. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Generac MGG350N2 troubleshooting guide (17 entries) →
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Prime | 50% | 196.08 | 51.8 |
| Prime | 75% | 279.36 | 73.8 |
| Prime | 100% | 358.1 | 94.6 |
| Standby | 100% | 94.64 | 25.0 |