Service parts for the MMG45IF4
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
| Frequency | 60.0 Hz |
|---|---|
| Standby power | 44 kW |
| Standby kVA | 55 |
| Prime power | 38 kW |
| Emissions | 4f |
| Controller | Power Zone |
| Oil capacity | 10.4 L (11.0 US qt) |
| Alternator | Marathon 283PSL1707,285PSL1700 |
Engine
| Oil capacity | 10.4 L (11.0 US qt) |
|---|---|
| Coolant capacity | 17.0 L |
| Displacement | 2.2 L |
| Aspiration | Turbocharged, aftercooled |
| Rated speed | 1800 rpm |
Same engine, other brands
1 brandThe Isuzu 4LE2XAGV01 in this set also powers 2 generator sets 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 | MMG45IF4, MMG50ITM |
Maintenance & consumables
for the Isuzu 4LE2XAGV01| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Replace when the yellow center bar of the filter minder gauge reaches the red section (20 in. H2O) | 8972319000 | Amazon eBay $95.00 NAPA $51.65 | ||
| Fuel filter | 8981527372 | Amazon eBay $30.00 PartsGeek $14.97 NAPA $58.82 | |||
| Oil filter | X13201002 | Amazon eBay $23.95 PartsGeek $11.97 NAPA $14.63 | |||
| Battery | Group 35/55, 12V (1 per unit), 720 CCA | — | 250 hr | ||
| Belt | Remove and check for wear at the 500 hour/12 month service interval; inspect pulleys and bearings | — | 500 hr | ||
| Coolant | 17.0 L | — | |||
| Coolant filter | Clean Water Sedimenter Element | — | 250 hr | ||
| Fuel | Maintenance | — | 250 hr | ||
| Oil | 10.4 L (11.0 US qt) | — | 250 hr | ||
| Spark plug | — |
Common questions
What size generator is the Magnum MMG45IF4?
The Magnum MMG45IF4 is rated 44 kW standby (55.0 kVA).
What engine does the Magnum MMG45IF4 use?
The Magnum MMG45IF4 is powered by the Isuzu 4LE2XAGV01 engine.
What's the oil capacity on a Magnum MMG45IF4?
The Magnum MMG45IF4 takes 10.4 L (11.0 US qt) of engine oil (Isuzu 4LE2XAGV01 engine specification).
What is the cooling system capacity of the Magnum MMG45IF4?
The Magnum MMG45IF4 cooling system holds 17 liters (4.5 US gallons) for the engine, per the manufacturer specification sheet.
What is the prime power rating of the Magnum MMG45IF4?
The Magnum MMG45IF4 is rated 38 kW prime (47 kVA), against 44 kW standby.
Which alternator is fitted to the Magnum MMG45IF4?
The Magnum MMG45IF4 uses a Marathon 283PSL1707,285PSL1700 alternator.
What oil filter fits the Magnum MMG45IF4?
The Magnum MMG45IF4 uses oil filter part number X13201002. Equivalents: DONALDSON P557780, BALDWIN B118, NAPA 1452.
What fuel filter does the Magnum MMG45IF4 use?
The Magnum MMG45IF4 uses fuel filter part number 8981527372.
Which air filter part number does the Magnum MMG45IF4 take?
The Magnum MMG45IF4 uses air filter part number 8972319000.
Troubleshooting
6Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Low fuel level shutdown | Fuel level low; fuel tank leak; fuel level sender or connecting wiring damaged | Check the fuel level on the LCD window and confirm the unit is sitting level; check for leaks in the fuel tank; check the fuel level sender and the connecting wiring for damage and check for continuity between the sender and the engine controller |
| Low oil pressure shutdown | Low engine oil level; oil leaks; oil pressure sender fault | Check the level of the engine oil with the dipstick and add oil if required; visually inspect the engine for oil leaks; restart the unit and verify the loss of oil pressure, shutting the engine down immediately if the oil pressure value does not read 5 psi (34 kPa) within five seconds; check the oil pressure sender and refer to the troubleshooting section of the engine operator's manual |
| Low coolant level shutdown | Low coolant level; coolant leaks; coolant mixed with engine oil | Allow the engine to cool; check the coolant level in the radiator and add coolant until it is 3/4 in. (1.9 cm) below the filler neck; inspect coolant hoses, engine block and water pump for visible leaks; check engine oil to verify no coolant has mixed with it |
| High coolant temperature shutdown | Low coolant level; radiator shroud and ducting blockage; coolant leaks; loose serpentine drive belt; engine overheating | Check the coolant level in the overflow jug; restart the engine and read the coolant temperature, stopping the engine immediately if the coolant temperature is 210°F (99°C) or more; allow the engine to cool, add coolant to the overflow jug if low and check the radiator level, adding coolant until it is 3/4 in. (1.9 cm) below the filler neck; check the radiator shroud and ducting for blockage and remove any foreign matter; inspect coolant hoses, engine block and water pump for visible leaks; check the tension of the serpentine drive belt for the water pump; remove the load on the generator and restart the engine, checking the coolant temperature and shutting the engine down immediately if it starts to overheat |
| Overcrank shutdown | Low fuel level; fuel pump not operating properly; air filter blockage; starting problem | Check the fuel level in the tank; check for proper operation of the fuel pump; check the air filter for blockage; refer to the engine operator's manual for additional information on troubleshooting starting problems |
| Overspeed or underspeed shutdown | Disconnect all loads and restart the generator; read the frequency (Hz) on the LCD window (with no loads the frequency should read 60.0 Hz) |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
13| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 01035 | Central Lift Point | Central lift point | Amazon eBay | |
| 010418 | Fuel filter | 1 | Controller screen | Amazon eBay $22.46 |
| 010419 | Air filter | 1 | Air filter | Amazon eBay |
| 010420 | Coolant and filter | 1 | Coolant | Amazon eBay FridayParts $151.60 |
| 010421 | Belt | 1 | Belt | Amazon eBay |
| 010422 | Battery service | 1 | Battery service | Amazon eBay $50.00 |
| 010423 | Spark plugs | 1 | Alarm mute and lamp test button | Amazon eBay |
| 01144 | Controller | Controller | Amazon eBay | |
| 35/55 | Battery Type - 12V (1) | 1 | Battery | buy |
| 01031 | GEN V + | 1 | Service part / kit | Amazon eBay |
| 01032 | Bonding Plate | 1 | Service part / kit | Amazon eBay |
| 01033 | Generator Cam Lock Connection Option | 1 | Service part / kit | Amazon eBay |
| 209649 | Form: SFC626B | 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 | 47.32 | 12.5 |
Source — consumption: 48972.
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.