HomeMagnumMagnum MMG100D

Magnum MMG100D Generator Set

The Magnum MMG100D is a 88 kW (110 kVA) standby generator set powered by a John Deere PE4045HFG92 engine. It operates at 60 Hz. It holds about 15.5 L (4.1 gal) of oil and 22 L (5.8 gal) of coolant. The same PE4045HFG92 engine also powers generator sets from Generac and John Deere.

88 kW
Standby
4.5 L
Displacement
15.5 L
Oil capacity
1
Document types

Specifications

Frequency60.0 Hz
Standby power88 kW
Standby kVA110
Prime power80 kW
Oil capacity15.5 L
AlternatorMarathon 363PSL1607 (1661) (Class H insulation)

Engine

John Deere PE4045HFG92
Oil capacity14.7 L
Coolant capacity22.0 L
Displacement4.5 L
Aspirationturbocharged
Rated speed1800 rpm

Maintenance & consumables

for the John Deere PE4045HFG92
ItemSpecCapacityPart #Interval
Air filter300 hr find
Fuel filter1000 hr find
Oil filter300 hr find
Belt500 hr find
Coolant20.81000 hr
Coolant filter find
Oil15.5300 hr

Common questions

What is the power rating of the Magnum MMG100D?

The Magnum MMG100D is rated 88 kW standby (110.0 kVA).

What engine does the Magnum MMG100D use?

The Magnum MMG100D is powered by the John Deere PE4045HFG92 engine.

What is the oil capacity of the Magnum MMG100D?

The John Deere PE4045HFG92 engine in the Magnum MMG100D has an oil capacity of 14.7 liters.

What alternator does the Magnum MMG100D use?

The Magnum MMG100D uses a Marathon 363PSL1607 (1661) alternator. Insulation class H.

Troubleshooting

4

Symptoms & remedies

SymptomCauseRemedy
LOW FUEL LEVEL SHUTDOWNFuel 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 SHUTDOWNOil 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 SHUTDOWNCoolant level in the radiator is low.Allow the engine to cool. Check the coolant level in the radiator.
Engine shutdownFuel tank running dry, oil pressure less than 20 psi, coolant level low, high coolant temperatureCheck 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

Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.

Parts

14
Part #DescriptionQtySystem
00087Twist-Lock Receptacles1Receptacle PartsGeek
00452120V GFCI Receptacles1Receptacle PartsGeek
0045320A Circuit Breakers1Breaker PartsGeek
100-025Air Filter1Air filter PartsGeek
100-030Oil Filter1Oil filter PartsGeek
100-045Fuel Filter1Fuel filter PartsGeek FridayParts $20.19
100-060Coolant Filter1Coolant filter PartsGeek dieselpartscenter $39.84
100-085Belt2Belt PartsGeek
100-100Spark Plug1Spark plug PartsGeek
25-1476Air Filter Minders1Air filter PartsGeek
25-1483Primary Air Cleaners1Air filter PartsGeek
25-1639Fuel Filters1Fuel filter PartsGeek
25-1648Oil Filters1Oil filter PartsGeek
12142Roof assembly1Service part / kit PartsGeek

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

RatingLoadL/hgal/h
Prime23.56.2
Prime100%23.5
Standby18.14.78
Standby100%18.1

Available documents

Service manual — 32668 (Magnum)