Service parts for the MMG25FHI
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 | 20 kW |
| Standby kVA | 25 |
| Prime power | 18 kW |
| Emissions | Tier IV Interim |
| Controller | Microprocessor-based controller |
| Oil capacity | 3.5 L |
| Voltage options | 120/240 V, 120/208 V, 277/480 V |
| Phase | single/three |
| Circuit breaker | 90 A |
| Battery cranking | 720 CCA |
| Max ambient | 48.89 °C |
| Dimensions (L×W×H) | 2410×890×1320 mm |
| Dry weight | 1038 kg |
| Sound level | 68.0 dBA @ 7 m |
| Fuel tank | 401.2 L |
| Tank runtime | 45.4 hr |
Engine
| Oil capacity | 3.5 L |
|---|---|
| Coolant capacity | 4.5 L |
| Displacement | 2.2 L |
| Aspiration | N/A |
| Rated speed | 1800 rpm |
Same engine, other brands
1 brandThe 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.
| Brand | Models |
|---|---|
| Generac | MLT4200 |
Maintenance & consumables
for the Isuzu 4LE1NYGV-03| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Filter, air - metallic | 12969 | Amazon eBay | ||
| Fuel filter | API SL or better | 8944015310 | 500 hr | Amazon eBay $86.33 NAPA $16.78 | |
| Oil filter | API SL or better | 5876100080 | 1000 hr | Amazon eBay $16.89 PartsGeek $7.98 NAPA $14.75 | |
| Battery | Group 24 | ×1 | — | 500 hr | |
| Belt | Belt, fan | 22258 | Amazon eBay | ||
| Coolant | — | 1000 hr | |||
| Coolant filter | N/A | — | |||
| Oil | — | 500 hr | |||
| Spark plug | N/A | — | 1000 hr |
Common questions
How many kW is the Magnum MMG25FHI?
The Magnum MMG25FHI is rated 20 kW standby (25.0 kVA).
What engine is in the Magnum MMG25FHI?
The Magnum MMG25FHI is powered by the Isuzu 4LE1NYGV-03 engine.
What kind of fuel does the Magnum MMG25FHI run on?
The Magnum MMG25FHI runs on diesel.
How much oil does the Magnum MMG25FHI take?
The Isuzu 4LE1NYGV-03 engine in the Magnum MMG25FHI has an oil capacity of 3.5 liters.
What is the coolant capacity of the Magnum MMG25FHI?
The Magnum MMG25FHI 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 MMG25FHI?
The Magnum MMG25FHI is rated 18 kW prime (23 kVA), against 20 kW standby.
How loud is the Magnum MMG25FHI?
The Magnum MMG25FHI is rated at 68.0 dBA at 7 m, per the manufacturer specification sheet.
What is the dry weight of the Magnum MMG25FHI?
The Magnum MMG25FHI has a dry weight of 1038 kg (2288 lb).
How big is the fuel tank on the Magnum MMG25FHI?
The Magnum MMG25FHI has a 401.2 liter (106 US gallon) fuel tank, giving about 45.4 hours of runtime.
What voltages is the Magnum MMG25FHI available in?
The Magnum MMG25FHI is offered in 120/240 V, 120/208 V, 277/480 V, single/three-phase.
How many cold cranking amps does the Magnum MMG25FHI require?
The Magnum MMG25FHI uses 720 CCA, per the manufacturer specification sheet.
Which oil filter part number does the Magnum MMG25FHI take?
The Magnum MMG25FHI uses oil filter part number 5876100080.
Which fuel filter part number does the Magnum MMG25FHI take?
The Magnum MMG25FHI uses fuel filter part number 8944015310.
What air filter does the Magnum MMG25FHI use?
The Magnum MMG25FHI uses air filter part number 12969.
Parts
30| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 12969 | Condenser (magneto) | 1 | Air filter | Amazon eBay |
| 12973 | Element, air filter | 1 | Air filter | Amazon eBay |
| 13378 | Gasket, silicone | 2 | Gasket | Amazon eBay |
| 15006 | Cable, .188 in. x 27 ft. w/ball swedge | 1 | Cable | Amazon eBay FridayParts $629.99 |
| 15183 | Filter, oil - Isuzu | 1 | Oil filter | Amazon eBay |
| 15331 | Fuel filter element | 1 | Fuel filter | Amazon eBay $16.74 |
| 15612 | Cable, 16-7 cold mast drape | 1 | Hose | Amazon eBay |
| 22258 | Belt, fan | 1 | Belt | Amazon eBay |
| 26049 | Alternator, Isuzu | 1 | Alternator | Amazon eBay |
| 285PSL5260 | Generator Model 285PSL5260 | 1 | Generator | Amazon eBay |
| 50018 | Hose, fuel - .312 ID, 50 psi, SAE 30R7 | 3 | Hose | Amazon eBay |
| PE4024HF285 | Engine Model PE4024HF285 | 1 | Engine | Amazon eBay |
| 12142 | Decal, ground | 1 | Service part / kit | Amazon eBay NAPA $74.66 |
| 13370 | Assembly, tether | 1 | Service part / kit | Amazon eBay FridayParts $99.99 |
| 13660 | Radiator, 20kW wide | 1 | Service part / kit | Amazon eBay |
| 14262 | Sheave, 3 in. | 2 | Service part / kit | Amazon eBay |
| 15002 | Clamp, cable - .188 | 2 | Service part / kit | Amazon eBay |
| 15003 | Thimble, cable | 1 | Service part / kit | Amazon eBay |
| 16600 | Winch, manual | 1 | Service part / kit | Amazon eBay FridayParts $199.89 |
| 19258 | VALVE LAPPER | 1 | Service part / kit | Amazon eBay |
| 22419B | Bracket, overflow jug .5 gal-black | 1 | Service part / kit | Amazon eBay |
| 24942 | Decal, Patented 7,642,665,B2 | Service part / kit | Amazon eBay | |
| 26286 | Decal, Hood Service | 1 | Service part / kit | Amazon eBay FridayParts $229.95 |
| 26386 | Decal, Pinch Point | 1 | Service part / kit | Amazon eBay NAPA $45.89 |
| 26387 | Decal Set, Rear Hood Latch | 1 | Service part / kit | Amazon eBay FridayParts $18.23 |
| 30093 | GSC Alarm Status | Service part / kit | Amazon eBay | |
| 30175 | Decal, UN31A tank caution | 1 | Service part / kit | Amazon eBay NAPA $12.21 FridayParts $85.00 |
| 34275 | Decal, Caution - 120V & 240V Outlets | 1 | Service part / kit | Amazon eBay |
| 34424 | Decal Set, Voltage Selector Switch NEUTRAL BONDED TO FRAME | 1 | Service part / kit | Amazon eBay |
| 34425 | Decal, Terminal Connections - 600V | 1 | Service 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
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Prime | 50% | 3.4 | 0.9 |
| Prime | 75% | 5.3 | 1.4 |
| Prime | 100% | 6.8 | 1.8 |
Available documents
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.