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Magnum MMG25FHICAN6 Generator Set

The Magnum MMG25FHICAN6 is a 26 kW (35.3 kVA) standby generator set powered by a Isuzu 4LE1NYGV-03 engine. It is available at 600 V, 480 V, 208 V and 240 V, 3-phase and 60 Hz. It holds about 3.5 L (0.9 gal) of oil and 4.5 L (1.2 gal) of coolant. Starting uses 1 group-24 battery rated 720 CCA at 12 V. The set weighs about 929 kg (2048 lb) and produces 66 dBA at 23 m. An integrated tank holds 401 L (105.9 gal), roughly 45.4 hours of runtime. The same 4LE1NYGV-03 engine also powers generator sets from Generac.

26 kW
Standby
2.2 L
Displacement
3.5 L
Oil capacity
1
Document types

Service parts for the MMG25FHICAN6

Grouped by system, with how many of each the parts manual calls for.

Air intake

1 required
12969Air filtersee priceAmazon

Fuel system

1 required

Oil system

1 required

Belts

1 required

Prices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.

Specifications

Frequency60.0 Hz
Standby power26 kW
Standby kVA35
Prime power24 kW
ControllerMagnum Digital (MDC)
Oil capacity3.5 L
AlternatorMarathon 282PSL5255
Voltage options600 V, 480 V, 208 V, 240 V
Phase3
Power factor{'1': 1, '3': 0.8}
Circuit breaker90 A
Battery group24
Battery cranking720 CCA
Battery voltage12 V
Battery quantity1
Dry weight929 kg
Sound level66.0 dBA @ 23 m
Fuel tank401.0 L
Tank runtime45.4 hr

Engine

Isuzu 4LE1NYGV-03
Oil capacity3.5 L
Coolant capacity4.5 L
Displacement2.2 L
AspirationN/A
Rated speed1800 rpm

Same engine, other brands

1 brand

The Isuzu 4LE1NYGV-03 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.

BrandModels
GeneracMLT4200

Maintenance & consumables

for the Isuzu 4LE1NYGV-03
ItemSpecCapacityPart #Interval
Air filterFilter, air - metallic12969 Amazon eBay
Fuel filterAPI SL or better8944015310500 hr Amazon eBay $86.33 NAPA $16.78
Oil filterAPI SL or better58761000801000 hr Amazon eBay $16.89 PartsGeek $7.98 NAPA $14.75
BatteryGroup 24×1—500 hr
BeltBelt, fan22258 Amazon eBay
Coolant—1000 hr
Coolant filterN/A—
Oil—500 hr
Spark plugN/A—1000 hr

Common questions

What is the power rating of the Magnum MMG25FHICAN6?

The Magnum MMG25FHICAN6 is rated 26 kW standby (35.3 kVA).

Which engine powers the Magnum MMG25FHICAN6?

The Magnum MMG25FHICAN6 is powered by the Isuzu 4LE1NYGV-03 engine.

What is the oil capacity of the Magnum MMG25FHICAN6?

The Isuzu 4LE1NYGV-03 engine in the Magnum MMG25FHICAN6 has an oil capacity of 3.5 liters.

How much coolant does the Magnum MMG25FHICAN6 hold?

The Magnum MMG25FHICAN6 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 Magnum MMG25FHICAN6?

The Magnum MMG25FHICAN6 is rated 24 kW prime (32 kVA), against 26 kW standby.

What is the sound level of the Magnum MMG25FHICAN6?

The Magnum MMG25FHICAN6 is rated at 66.0 dBA at 23 m, per the manufacturer specification sheet.

How much does the Magnum MMG25FHICAN6 weigh?

The Magnum MMG25FHICAN6 has a dry weight of 929 kg (2048 lb).

How big is the fuel tank on the Magnum MMG25FHICAN6?

The Magnum MMG25FHICAN6 has a 401 liter (106 US gallon) fuel tank, giving about 45.4 hours of runtime.

What voltages is the Magnum MMG25FHICAN6 available in?

The Magnum MMG25FHICAN6 is offered in 600 V, 480 V, 208 V, 240 V, 3-phase.

What battery does the Magnum MMG25FHICAN6 use?

The Magnum MMG25FHICAN6 uses 1 battery, 12 V each, 720 CCA, group 24, per the manufacturer specification sheet.

What alternator comes on the Magnum MMG25FHICAN6?

The Magnum MMG25FHICAN6 uses a Marathon 282PSL5255 alternator.

Which oil filter part number does the Magnum MMG25FHICAN6 take?

The Magnum MMG25FHICAN6 uses oil filter part number 5876100080.

Which fuel filter part number does the Magnum MMG25FHICAN6 take?

The Magnum MMG25FHICAN6 uses fuel filter part number 8944015310.

What air filter does the Magnum MMG25FHICAN6 use?

The Magnum MMG25FHICAN6 uses air filter part number 12969.

Troubleshooting

6

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, check for leaks, inspect the fuel level sender and wiring.
LOW OIL PRESSURE SHUTDOWNOil level is low or engine has oil leaks.Check the oil level, visually inspect the engine for leaks, check the oil pressure sender.
LOW COOLANT LEVEL SHUTDOWNCoolant level is low or coolant has mixed with oil.Check the coolant level, inspect hoses and engine for leaks, check the engine oil.
HIGH COOLANT TEMPERATURE SHUTDOWNCoolant temperature is too high.Check the coolant level, add coolant if necessary, inspect hoses and engine for leaks, check serpentine drive belt tension.
OVERCRANK SHUTDOWNEngine will not start.Check fuel level, check fuel pump operation, clean air filter.
OVERSPEED OR UNDERSPEED SHUTDOWNEngine speed is above or below 60.0 Hz.Disconnect all loads and check engine speed with no load, adjust throttle as needed.

Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Magnum MMG25FHICAN6 troubleshooting guide (9 entries) →

Parts

30
Part #DescriptionQtySystem
12969Condenser (magneto)1Air filter Amazon eBay
12973Element, air filter1Air filter Amazon eBay
13378Gasket, silicone2Gasket Amazon eBay
15006Cable, .188 in. x 27 ft. w/ball swedge1Cable Amazon eBay FridayParts $629.99
15183Filter, oil - Isuzu1Oil filter Amazon eBay
15331Fuel filter element1Fuel filter Amazon eBay
15612Cable, 16-7 cold mast drape1Hose Amazon eBay
22258Belt, fan1Belt Amazon eBay
26049Alternator, Isuzu1Alternator Amazon eBay
285PSL5260Generator Model 285PSL52601Generator Amazon eBay
50018Hose, fuel - .312 ID, 50 psi, SAE 30R73Hose Amazon eBay
PE4024HF285Engine Model PE4024HF2851Engine Amazon eBay
12142Decal, ground1Service part / kit Amazon eBay NAPA $74.66
13370Assembly, tether1Service part / kit Amazon eBay FridayParts $99.99
13660Radiator, 20kW wide1Service part / kit Amazon eBay
14262Sheave, 3 in.2Service part / kit Amazon eBay
15002Clamp, cable - .1882Service part / kit Amazon eBay
15003Thimble, cable1Service part / kit Amazon eBay
16600Winch, manual1Service part / kit Amazon eBay FridayParts $199.89
19258VALVE LAPPER1Service part / kit Amazon eBay
22419BBracket, overflow jug .5 gal-black1Service part / kit Amazon eBay
24942Decal, Patented 7,642,665,B2Service part / kit Amazon eBay
26286Decal, Hood Service1Service part / kit Amazon eBay FridayParts $229.95
26386Decal, Pinch Point1Service part / kit Amazon eBay NAPA $45.89
26387Decal Set, Rear Hood Latch1Service part / kit Amazon eBay FridayParts $18.23
30093GSC Alarm StatusService part / kit Amazon eBay
30175Decal, UN31A tank caution1Service part / kit Amazon eBay NAPA $12.21 FridayParts $85.00
34275Decal, Caution - 120V & 240V Outlets1Service part / kit Amazon eBay
34424Decal Set, Voltage Selector Switch NEUTRAL BONDED TO FRAME1Service part / kit Amazon eBay
34425Decal, Terminal Connections - 600V1Service part / kit 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

RatingLoadL/hgal/h
Prime3.613.6
Prime100%6.81.8
Standby100%4.53.6

Available documents

Service manual — 34423 (Magnum)

This page was generated from the 1 manufacturer document above by automated extraction; every figure shown is copied from one of them. How the data is compiled.

Full service, cheapest listings

Priced items from this model's own parts manual.

Fuel filter 8944015310$16.78
Oil filter 5876100080$7.98
2 priced items$24.76