Service parts for the MLG 15
Grouped by system, with how many of each the parts manual calls for.
Air intake
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 | 14 kW |
| Standby kVA | 14 |
| Prime power | 13 kW |
| Emissions | Interim Tier IV |
| Oil capacity | 6.0 L |
| Alternator | Marathon 333CSA3024 |
| Voltage options | 120 V, 240 V |
| Phase | single |
| Rated current | 54 A |
| Power factor | 1.0 |
| Circuit breaker | 70 A |
| Battery cranking | 440 CCA |
| Coolant capacity | 10.98 L |
| Max ambient | 48.89 °C |
| Dimensions (L×W×H) | 2667×1727×1422 mm |
| Dry weight | 646 kg |
| Sound level | 70.0 dBA @ 7.01 m |
| Fuel tank | 211.98 L |
| Tank runtime | 43 hr |
Maintenance & consumables
for the Mitsubishi S4L2-Y461ML| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Air filter, Control box, Radiator, Document holder, Coolant overflow jug, Battery (behind panel), Starter (below muffler—on engine), Oil level indicator (dipstick), Muffler, Fuel filter | 010005 | Amazon eBay | ||
| Fuel filter | check fuel level | — | |||
| Oil filter | check oil level on dipstick and add if needed | — | |||
| Battery | — | ||||
| Belt | inspect/adjust belt | — | |||
| Coolant | — | ||||
| Coolant filter | check coolant level in overflow jug and add if needed | — | |||
| Oil | — | ||||
| Spark plug | inspect/adjust valve clearance | — |
Common questions
What size generator is the Generac MLG 15?
The Generac MLG 15 is rated 14 kW standby (14.0 kVA).
What engine does the Generac MLG 15 use?
The Generac MLG 15 is powered by the Mitsubishi S4L2-Y461ML engine.
What fuel does the Generac MLG 15 use?
The Generac MLG 15 runs on diesel.
What alternator comes on the Generac MLG 15?
The Generac MLG 15 uses a Marathon 333CSA3024 alternator.
Which air filter part number does the Generac MLG 15 take?
The Generac MLG 15 uses air filter part number 010005.
Troubleshooting
2Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Low Oil Pressure Shutdown | Low oil level, Oil leaking from engine, Oil pressure sender | Check oil level on dipstick. Add oil if needed. 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. See engine operator’s manual to identify corrective action. |
| High Coolant Temperature Shutdown | Low coolant level, Blockage in radiator, Leakage in coolant hoses, engine block, or water pump | Add coolant if needed. Allow engine to cool, then check coolant level in radiator. Check radiator shroud and ducting for blockage and remove any foreign matter. 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 (230 degrees or higher). See the engine operator’s manual for additional information on engine overheating. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
5| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 010005 | Air filter, Control box, Radiator, Document holder, Coolant overflow jug, Battery (behind panel), Starter (below muffler—on engine), Oil level indicator (dipstick), Muffler, Fuel filter | Air filter | Amazon eBay | |
| 010052 | 1 | Emergency stop switch | Amazon eBay | |
| 010053 | Warning: Hot surface, moving parts | Warning label | Amazon eBay | |
| 010054 | Operator’s manual must be stored on machine | Operator manual | Amazon eBay | |
| 010056 | Main circuit breaker, Engine ignition switch (key activated), Circuit breaker indicator light, Engine hours meter | Main circuit breaker | 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 | 4.92 | 1.3 | |
| Prime | 25% | 2.46 | 0.65 |
| Prime | 50% | 2.46 | 0.65 |
| Prime | 75% | 3.71 | 0.98 |
| Prime | 100% | 4.92 | 1.3 |