Service parts for the MMG130
Grouped by system, with how many of each the parts manual calls for.
Air intake
1 requiredFuel system
1 requiredOil system
1 requiredBelts
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 | 96 kW |
| Prime power | 90 kW |
| Emissions | Interim Tier IV |
| Controller | Power Zone |
| Oil capacity | 31.2 L |
| Voltage options | 480/277 V, 208/120 V, 240/120 V |
| Phase | 3 |
| Battery cranking | 720 CCA |
| Max ambient | 49 °C |
| Dry weight | 2469 kg |
| Fuel tank | 1295.0 L |
| Tank runtime | 44 hr |
Engine
| Oil capacity | 31.2 L |
|---|---|
| Coolant capacity | 29.8 L |
| Displacement | 4.5 L |
| Aspiration | turbocharged |
| Rated speed | 1800 rpm |
Same engine, other brands
2 brandsThe John Deere PE4045HFG93 in this set also powers 3 generator sets sold under 2 other brands. Service parts and maintenance intervals for the engine are shared; enclosure, alternator, controller and ratings are not.
| Brand | Models |
|---|---|
| Magnum | MMG130, MMG130D Super Start |
| John Deere | MMG130 |
Maintenance & consumables
for the John Deere PE4045HFG93| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | paper element | 30561 | Amazon eBay | ||
| Fuel filter | 33024 | Amazon eBay FridayParts $142.39 | |||
| Oil filter | 32912 | Amazon eBay $15.28 | |||
| Battery | — | 500 hr | |||
| Belt | 33005 | KuduParts $27.00 FridayParts $27.09 | |||
| Coolant | — | 250 hr | |||
| Oil | 31.2 | — | 500 hr | ||
| Spark plug | — | 250 hr |
Service intervals
17| Item | Action | Hours | Months | Notes |
|---|---|---|---|---|
| Engine mounts | Check | 250 hr | ||
| Oil vapor recirculation system/non-return valve | Check | 250 hr | ||
| Air intake hoses, connections, and system | Check | 500 hr | ||
| Automatic belt tensioner and belt wear | Check | 500 hr | 12 mo | Belt removed and checked for wear at 500 hour/12 month service interval |
| Battery | Check | 500 hr | Service battery | |
| Cooling system | Check | 500 hr | ||
| Engine electrical ground connection | Check | 500 hr | ||
| Engine oil and oil filter | Change | 500 hr | First service — Also 100 hrs break-in period; interval reduced to every 250 hours if not using John Deere Plus 50 II engine oil | |
| Fuel filter elements | Replace | 500 hr | 12 mo | |
| Leveling jack(s) | Lubricate | 500 hr | ||
| Oil vapor recirculation filter | Replace | 500 hr | ||
| Generator drive plate torque | Check | 1000 hr | See Checking Generator Drive Plate Torque | |
| Air cleaner elements | Replace | 3000 hr | 36 mo | |
| Alternator and fan belts | Replace | 3000 hr | 36 mo | |
| Diesel Particulate Filter (DPF) ash removal | Replace | 3000 hr | Expected service interval at least 3,000 or 4,500 hours; by OEM authorized dealer only | |
| Fuses | Check | 3000 hr | 36 mo | |
| Thermostats | Test | 3000 hr | 36 mo |
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
15| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Pressure | Engine oil pressure (minimum on start) | 5 | psi (34 kPa) | within five seconds |
| Pressure | Engine oil pressure (normal operating) | 35-80 | psi (241-552 kPa) | |
| Speed | Engine governed operating speed | 1800 | rpm | |
| Speed | Output frequency (no load) | 60 | Hz | no loads connected |
| Temperature | Coolant temperature (normal operating) | 180-200 | °F (82-93°C) | average ambient 70°F (21°C) |
| Temperature | Coolant temperature gauge range | 150-250 | °F (66-121°C) | |
| Temperature | High coolant temperature shutdown | 210 | °F (99°C) | |
| Torque | Generator drive plate bolt | 36 (49) | ft-lbs (Nm) | |
| Torque | Generator drive plate bolt | 46 (63) | ft-lbs (Nm) | |
| Torque | Generator drive plate bolt | 47 (64) | ft-lbs (Nm) | |
| Torque | Wheel lug nuts - first pass | 20-25 | ft-lbs (Nm) | |
| Torque | Wheel lug nuts - second pass | 50-60 | ft-lbs (Nm) | |
| Torque | Wheel lug nuts - third pass | 90-120 | ft-lbs (Nm) | |
| Voltage | Battery voltage (normal, engine running) | 12-14 | V | 12 volt systems |
| Voltage | Battery voltage (normal, engine running) | 24-26 | V | 24 volt systems |
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 | Propylene glycol base antifreeze | Do not use chromate base rust inhibitor with propylene glycol base antifreeze, boosters or additives | above -24°C | Mixtures (antifreeze/water by volume -> freezing point): 40/60 = -12°F (-24°C); 50/50 = -34°F (-36°C); 60/40 = -54°F (-48°C); 70/30 = -90°F (-67°C) (maximum freeze protection is at 70%) | |
| Engine oil | John Deere Plus 50 II | High quality detergent oil, appropriate classification and viscosity for engine type/ambient temperature | Factory filled with engine oil of a grade recommended by the engine supplier; consult IASD or engine service manual |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Procedures
12Fine Voltage Adjustment adjustment
- With the unit running, press the Generator button.
- Press Enter; the voltages displayed begin flashing.
- Use ▲ and ▼ to adjust the voltage.
- Press Enter to confirm the new voltage; voltages stop flashing.
To Achieve 240V in 208V Configuration adjustment
⚠ Equipment Damage. Verify voltage application before making changes to factory settings.
- Shut down unit, move Control Power switch to ON (I).
- Press a directional arrow to enter the maintenance screens.
- Press ► until the Status tab shows the Power Zone™ application version (must be V4 or higher).
- Press any directional arrow to enter maintenance screens.
- Press Enter and O simultaneously to display the Configuration menu.
- Navigate to Config Selection, then Config to Edit, then Selected Configuration.
- Select Alternative Configuration 1.
- Enter Password Entry and enter password 4444 if applicable.
- Highlight Generator, then Generator voltage, then Over Voltage Alarms.
- Set Alarm Trip to 153V.
- Set Pre-alarm Trip to 151V.
- Press and hold Enter for five seconds until the Saving screen appears.
Checking Generator Drive Plate Torque maintenance
- Disconnect battery.
- Remove generator fan guard.
- Torque each of the drive plate bolts to the specification shown in the table.
- Install generator fan guard.
- Connect battery.
Force a Manual Exhaust Filter Cleaning maintenance
⚠ Check for adequate fuel level before beginning exhaust filter cleaning.
- Open the control door and locate the switch labeled EXHAUST FILTER CLEANING.
- Move and hold the switch in ON/FORCED (I) for five seconds.
- On the DPF Status screen verify the Regeneration indicator shows DPF Lamp - Solid.
Resetting the Maintenance Alarms maintenance
- With unit shut down, move Control Power switch to CONTROL ON (I).
- Press any directional arrow to enter the maintenance screens.
- Press Enter and O simultaneously to display the Configuration menu.
- Press ▼ to move to the Maintenance group.
- Press ► to access sections; highlight the Maintenance section.
- Press ► to access parameters and highlight the alarm to reset.
- Press Enter to select editable parameters; highlight Reset.
- Press Enter to reset the selected maintenance alarm.
- To save changes, press and hold Enter for five seconds.
Trailer Wheel Bearing Lubrication maintenance
⚠ Use only a high quality grease made specifically for lubrication of wheel bearings.
Tools: Grease gun
- Remove the small rubber plug on the grease cap.
- Attach a standard grease gun fitting to the grease fitting.
- Pump grease into the fitting until new grease is visible around the nozzle.
- Wipe any excess grease from the hub with a clean cloth.
- Replace the rubber plug when finished.
AUTO (Remote) Starting the Unit operation
⚠ Verify contacts on any remote switch are open before entering AUTO mode.
Tools: Jumper wire (minimum 16 gauge)
- Perform a manual start at least once to verify correct operation.
- To check remote start circuit, remove wires from remote start terminal block.
- Press AUTO/MANUAL Mode button so LCD shows Auto Mode.
- Attach a minimum 16 gauge jumper wire across the two remote start terminals.
- Engine should crank, start and run; remove jumper to stop.
- Reconnect remote start switch (transfer switch) wires.
- Verify unit is in AUTO mode.
- Close the main circuit breaker (ON/I) and lock all access doors.
Disabling Automatic (AUTO) Exhaust Filter Cleaning operation
⚠ Risk of Burn. Stay clear of the exhaust system during operation and exhaust filter cleaning.
- Open the control door and locate the switch labeled EXHAUST FILTER CLEANING.
- Move the switch to DISABLED (O).
- On the DPF Status screen verify the Disabled Regeneration indicator shows DPF Inhib - Solid.
Enable Exhaust Filter Cleaning operation
- Open the control door and locate the switch labeled EXHAUST FILTER CLEANING.
- Move the switch to ON/AUTO (I/O).
- On the DPF Status screen verify the Regeneration indicator shows DPF Lamp - Solid.
Lifting the Unit operation
⚠ Always remain aware of people and objects around when moving or lifting the unit.
- Attach a sling or hook directly to the central lift point only if devices are in good condition.
- Verify the equipment used to raise the unit has sufficient capacity.
- Keep doors and hood closed and locked while moving or lifting.
Manually Starting the Unit operation
⚠ Asphyxiation. Running engines produce carbon monoxide.
- Move the Control Power switch to ON (I).
- Press the AUTO/MANUAL Mode button to enter MANUAL mode.
- Press the green Engine Start (I) button to initiate startup.
- If engine does not start, it pauses 15 seconds; up to three crank cycles.
- If Fail to Start alarm, wait two minutes then press Enter to clear.
- Verify AC output voltage is correct (see Fine Voltage Adjustment).
- Check frequency (Hz) reads approximately 60 Hz with no load.
- Switch main circuit breaker ON (I) and add loads via receptacle breakers.
Set the Controller Clock operation
- Navigate to the Maintenance group and press ► to access it.
- Press ► to select the Time section.
- Set the time and date to the correct local time.
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Voltage reconnection
| Voltage | Phase | Connection | Leads | Notes |
|---|---|---|---|---|
| 120V | 3 | Low Delta | T1-T12 (dedicated 12 lead generator) | Dedicated 12 lead generators option |
| 208/120V | 3 | Low Wye | T1-T12 (dedicated 12 lead generator) | Dedicated 12 lead generators option |
| 240/120V | 1 | Low Zig Zag | T1-T12 (dedicated 12 lead generator) | Dedicated 12 lead generators option |
| 240/120V | 3 | High Delta | T1-T12 (dedicated 12 lead generator) | Dedicated 12 lead generators option |
| 480/240V | 1 | High Zig Zag | T1-T12 (dedicated 12 lead generator) | Dedicated 12 lead generators option |
| 480/277V | 3 | High Wye | T1-T12 (dedicated 12 lead generator) | Dedicated 12 lead generators option |
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 Generac MMG130?
The Generac MMG130 is rated 96 kW standby.
What engine does the Generac MMG130 use?
The Generac MMG130 is powered by the John Deere PE4045HFG93 engine.
What fuel does the Generac MMG130 use?
The Generac MMG130 runs on diesel.
What's the oil capacity on a Generac MMG130?
The John Deere PE4045HFG93 engine in the Generac MMG130 has an oil capacity of 31.2 liters.
What is the cooling system capacity of the Generac MMG130?
The Generac MMG130 cooling system holds 29.8 liters (7.9 US gallons) for the engine, per the manufacturer specification sheet.
What is the continuous rating of the Generac MMG130?
The Generac MMG130 is rated 90 kW prime, against 96 kW standby.
What is the dry weight of the Generac MMG130?
The Generac MMG130 has a dry weight of 2469 kg (5443 lb).
How big is the fuel tank on the Generac MMG130?
The Generac MMG130 has a 1295 liter (342 US gallon) fuel tank, giving about 44 hours of runtime.
What voltages is the Generac MMG130 available in?
The Generac MMG130 is offered in 480/277 V, 208/120 V, 240/120 V, 3-phase.
What battery does the Generac MMG130 use?
The Generac MMG130 uses 720 CCA, per the manufacturer specification sheet.
What oil filter does the Generac MMG130 use?
The Generac MMG130 uses oil filter part number 32912.
Which fuel filter part number does the Generac MMG130 take?
The Generac MMG130 uses fuel filter part number 33024.
What air filter does the Generac MMG130 use?
The Generac MMG130 uses air filter part number 30561.
Troubleshooting
15Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Low Fuel Level Shutdown | Low fuel level | Check fuel level in LCD window of controller. |
| Low Fuel Level Shutdown | Unit not level | Verify unit is sitting level to ensure an accurate reading. |
| Low Fuel Level Shutdown | Fuel tank leaking | Check tank for leaks. |
| Low Fuel Level Shutdown | Damaged fuel sender or wiring | Check for continuity between sender and engine controller (see DC Wiring). |
| Low Oil Pressure Shutdown | Low oil level | Check oil level on dipstick. Add oil, if needed. |
| Low Oil Pressure Shutdown | Oil leaking from engine | 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. |
| Low Oil Pressure Shutdown | Oil pressure sender | See the OEM engine operator's manual to identify corrective action. |
| Low Coolant Level Shutdown | Low coolant level | Allow engine to cool, then check coolant level in radiator. Add coolant if needed. |
| Low Coolant Level Shutdown | Coolant hoses leaking | Inspect hoses for leaks. Repair or replace as necessary. |
| Low Coolant Level Shutdown | Engine block or water pump leaking | Visually inspect for leaks. Verify no coolant has mixed with the engine oil (oil will appear milky). See the OEM engine operator's manual for additional information. |
| High Coolant Temperature Shutdown | Low coolant level | Add coolant if needed. Allow engine to cool, then check coolant level in radiator. Restart engine and check coolant temperature (on controller). Stop engine immediately if coolant temperature is 210°F (99°C) or more. |
| High Coolant Temperature Shutdown | Blockage in radiator | Check radiator shroud and ducting for blockage and remove any foreign matter. |
| High Coolant Temperature Shutdown | Leakage in coolant hoses, engine block, or water pump | Inspect for visible leaks. Check tension of water pump serpentine drive belt. Remove load on generator and restart engine. Check coolant temperature and shut engine down immediately if it starts to overheat. See the OEM engine operator's manual for additional information on engine overheating. |
| Overcrank Shutdown | Fuel level low | Check fuel level in tank. Check fuel pump operation. Check air filter for blockage. See the OEM engine operator's manual for additional information. |
| Overspeed or Underspeed Shutdown | Frequency setting incorrect | Disconnect all loads and restart unit. Read frequency (Hz) in the LCD window on controller. Frequency should read 60 Hz. If frequency is above 60 Hz, engine speed will need to be adjusted. Contact Generac Mobile Products to adjust. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Repair guides
9- Checking Generator Drive Plate Torque
- Disabling Automatic (AUTO) Exhaust Filter Cleaning
- Enable Exhaust Filter Cleaning
- Fine Voltage Adjustment
- Force a Manual Exhaust Filter Cleaning
- Set the Controller Clock
- Setting Up a Daily Scheduled Run
- To Achieve 240V in 208V Configuration
- Trailer Wheel Bearing Lubrication
Step-by-step procedures compiled from the Generac service manual for this model.
Parts
3| Part # | Description | Qty | System | |
|---|---|---|---|---|
| P-130D-001 | Air Filter | 1 | Air filter | Amazon eBay |
| P-175-002 | Oil Filter | 1 | Oil filter | Amazon eBay |
| P-205-003 | Fuel Filter | 1 | Fuel filter | 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% | 14.0 | 3.7 |
| Prime | 75% | 20.8 | 5.5 |
| Prime | 100% | 28.0 | 7.4 |
Available documents
This page was generated from the 3 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.