Service parts for the MMG75
Grouped by system, with how many of each the parts manual calls for.
Air intake
1 requiredFuel system
1 requiredOil system
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
| Fuel | diesel |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 60 kW |
| Standby kVA | 60 |
| Prime power | 56 kW |
| Emissions | Interim Tier IV |
| Controller | Magnum Digital (MDC), Power Zone |
| Oil capacity | 15.5 L |
| Alternator | Marathon 363PSL1607 (1661) (Class H insulation) |
| Voltage options | 120/240 V, 120/208 V, 277/480 V |
| Phase | single/three |
| Circuit breaker | 300 A |
| Battery cranking | 720 CCA |
| Battery quantity | 1 |
| Max ambient | 48.9 °C |
| Dimensions (L×W×H) | 2565×1016×1727 mm |
| Dry weight | 1600 kg |
| Wet weight | 2131 kg |
| Sound level | 68.0 dBA @ 7.01 m |
| Fuel tank | 624.1 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 |
Maintenance & consumables
for the John Deere PE4045HFG92| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Air Filter Minders | 25-1476 | Amazon eBay | ||
| Fuel filter | Fuel Filters | 25-1639 | Amazon eBay | ||
| Oil filter | Oil Filters | 25-1648 | Amazon eBay | ||
| Battery | — | 250 hr | |||
| Belt | — | 500 hr | |||
| Coolant | 20.8 | — | 1000 hr | ||
| Coolant filter | — | ||||
| Oil | 15.5 | — | 300 hr | ||
| Spark plug | — | 1000 hr |
Service specifications
6| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Pressure | Oil pressure | 20 | psi | shutdown threshold |
| Pressure | Oil pressure | 25 | psi | warning threshold |
| Temperature | Coolant temperature | 220 | °F | warning threshold |
| Temperature | Coolant temperature | 230 | °F | shutdown threshold |
| Voltage | Battery voltage | 11 | VDC | under warning |
| Voltage | Battery voltage | 15 | VDC | over warning |
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
How many kW is the Magnum MMG75?
The Magnum MMG75 is rated 60 kW standby (60.0 kVA).
Which engine powers the Magnum MMG75?
The Magnum MMG75 is powered by the John Deere PE4045HFG92 engine.
What fuel does the Magnum MMG75 use?
The Magnum MMG75 runs on diesel.
What is the oil capacity of the Magnum MMG75?
The John Deere PE4045HFG92 engine in the Magnum MMG75 has an oil capacity of 14.7 liters.
What alternator comes on the Magnum MMG75?
The Magnum MMG75 uses a Marathon 363PSL1607 (1661) alternator. Insulation class H.
What oil filter fits the Magnum MMG75?
The Magnum MMG75 uses oil filter part number 25-1648.
What fuel filter fits the Magnum MMG75?
The Magnum MMG75 uses fuel filter part number 25-1639.
What air filter does the Magnum MMG75 use?
The Magnum MMG75 uses air filter part number 25-1476.
Troubleshooting
5Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| LOW FUEL LEVEL SHUTDOWN | Fuel level is low, fuel tank has leaks, or fuel level sender and wiring are damaged. | Check the fuel level on the Home screen. Confirm that the generator is sitting level to ensure an accurate reading. Check for leaks in the fuel tank. If the fuel level is good and no leaks are found, check the fuel level sender and the connecting wiring for damage. |
| LOW OIL PRESSURE SHUTDOWN | Oil pressure is less than 20 psi (138 kPa), engine has oil leaks, or oil pressure sender is faulty. | Check the level of the engine oil with the dipstick. Visually inspect the engine for oil leaks. If the oil level is good, restart the unit and verify the loss of oil pressure. Check the oil pressure sender. |
| LOW COOLANT LEVEL SHUTDOWN | Coolant level in the radiator is low. | Allow the engine to cool. Check the coolant level in the radiator. |
| Engine shutdown | Fuel tank running dry, oil pressure less than 20 psi, coolant level low, high coolant temperature | Check fuel level and add if necessary; check for leaks; inspect engine for damage; check oil level and add if necessary; visually inspect engine for leaks; check coolant level and add if necessary; check radiator hoses, engine block, water pump for leaks; check oil to ensure no coolant mixed in; allow engine to cool before checking |
| HIGH COOLANT TEMPERATURE SHUTDOWN | Coolant temperature is 230°F (110°C) or more | Check coolant level in overflow jug, restart engine and read coolant temperature, add coolant if low |
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 | 23.5 | 6.2 | |
| Prime | 50% | 9.8 | 2.6 |
| Prime | 75% | 14.2 | 3.74 |
| Prime | 100% | 18.1 | 4.78 |
| Standby | 18.1 | 4.78 | |
| Standby | 100% | 18.1 | 4.78 |