Specifications
| Frequency | 60.0 Hz |
|---|---|
| Standby power | 86 kW |
| Standby kVA | 107 |
| Prime power | 77 kW |
| Emissions | 4i |
| Controller | Power Zone |
| Oil capacity | 15.5 L |
| Alternator | Marathon 361PSL1602 |
| Voltage options | 120 V, 139 V, 208 V, 220 V, 240 V, 277 V |
| Phase | 3Ø |
| Rated current | 297 A |
| Power factor | 1 (1Ø), 0.8 (3Ø) |
| Circuit breaker | 300 A |
| Battery group | 24 |
| Battery cranking | 720 CCA |
| Battery voltage | 12 V |
| Battery quantity | 1 |
| Max ambient | 120 °C |
| Dimensions (L×W×H) | 3020×1020×1570 mm |
| Dry weight | 1600 kg |
| Sound level | 68.0 dBA @ 23 m |
| Fuel tank | 625.0 L |
| Tank runtime | 31 hr |
Engine
| Oil capacity | 14.7 L |
|---|---|
| Coolant capacity | 4.5 L |
| Displacement | 4.5 L |
| Aspiration | turbocharged |
| Rated speed | 1800 rpm |
Same engine, other brands
1 brandThe John Deere PE4045HFG92 in this set also powers 1 generator set 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 | MMG75 |
Maintenance & consumables
for the John Deere PE4045HFG92| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | 300 hr | |||
| Fuel filter | — | 1000 hr | |||
| Oil filter | — | 300 hr | |||
| Battery | — | 250 hr | |||
| Belt | — | 500 hr | |||
| Coolant | 20.8 | — | 1000 hr | ||
| Coolant filter | — | ||||
| Oil | 15.5 | — | 300 hr | ||
| Spark plug | — | 1000 hr |
Common questions
What size generator is the Generac MMG75?
The Generac MMG75 is rated 86 kW standby (107.0 kVA).
What engine does the Generac MMG75 use?
The Generac MMG75 is powered by the John Deere PE4045HFG92 engine.
How much oil does the Generac MMG75 take?
The John Deere PE4045HFG92 engine in the Generac MMG75 has an oil capacity of 14.7 liters.
What is the coolant capacity of the Generac MMG75?
The Generac MMG75 cooling system holds 4.5 liters (1.2 US gallons) for the engine, per the manufacturer specification sheet.
What is the prime power rating of the Generac MMG75?
The Generac MMG75 is rated 77 kW prime (97 kVA), against 86 kW standby.
How loud is the Generac MMG75?
The Generac MMG75 is rated at 68.0 dBA at 23 m, per the manufacturer specification sheet.
What is the dry weight of the Generac MMG75?
The Generac MMG75 has a dry weight of 1600 kg (3527 lb).
What size fuel tank does the Generac MMG75 have?
The Generac MMG75 has a 625 liter (165 US gallon) fuel tank, giving about 31 hours of runtime.
What voltages is the Generac MMG75 available in?
The Generac MMG75 is offered in 120 V, 139 V, 208 V, 220 V, 240 V, 277 V, 3Ø-phase.
How many cold cranking amps does the Generac MMG75 require?
The Generac MMG75 uses 1 battery, 12 V each, 720 CCA, group 24, per the manufacturer specification sheet.
What alternator does the Generac MMG75 use?
The Generac MMG75 uses a Marathon 361PSL1602 alternator.
Troubleshooting
3Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Low Fuel Level | Shutdown, Low fuel level, Unit not level, Fuel tank leaking, Damaged fuel sender or wiring | Check fuel level in LCD window of controller. Confirm that unit is sitting level to ensure an accurate reading. Check tank for leaks. Check for continuity between sender and engine controller. |
| Low Oil Pressure | Shutdown, Low oil level, Oil leaking from engine, Oil pressure sender | Check oil level on dipstick. Add oil, if needed. Visually inspect the engine for leaks. Restart unit and verify loss of pressure. Shut down immediately if pressure does not reach 5 psi (34 kPa) within five seconds. See engine operator’s manual to identify corrective action. |
| Low Coolant Level | Shutdown, Low coolant level, Coolant hoses leaking, Engine block or water pump leaking | Allow engine to cool, then check coolant level in radiator. Add coolant, if needed. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
11| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 100-025 | Air Filter | 1 | Air filter | Amazon eBay |
| 100-030 | Oil Filter | 1 | Oil filter | Amazon eBay |
| 100-045 | Fuel Filter | 1 | Fuel filter | Amazon eBay FridayParts $20.19 |
| 100-060 | Coolant Filter | 1 | Coolant filter | Amazon eBay |
| 100-085 | Belt | 2 | Belt | Amazon eBay |
| 100-100 | Spark Plug | 1 | Spark plug | Amazon eBay |
| 25-1476 | Air Filter Minders | 1 | Air filter | Amazon eBay |
| 25-1483 | Primary Air Cleaners | 1 | Air filter | Amazon eBay |
| 25-1639 | Fuel Filters | 1 | Fuel filter | Amazon eBay |
| 25-1648 | Oil Filters | 1 | Oil filter | Amazon eBay |
| AN500T0106 | STARTER SWITCH | Starter | Amazon eBay |
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 | 50% | 2.6 | 9.8 |
| Prime | 75% | 3.74 | 14.2 |
| Prime | 100% | 6.4 | 1.6 |
| Standby | 25% | 3.8 | 0.97 |
Available documents
This page was generated from the 4 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.