Specifications
| Frequency | 60.0 Hz |
|---|---|
| Standby power | 30 kW |
| Standby kVA | 40 |
| Prime power | 27 kW |
| Controller | Power Zone–DLA |
| Oil capacity | 8.0 L |
| Alternator | Marathon 334CSA3028 |
| Voltage options | 120 V, 240 V |
| Phase | single phase |
| Rated current | 167 A |
| Power factor | 1 |
| Circuit breaker | 100 A |
| Battery group | 24 |
| Battery cranking | 720 CCA |
| Battery voltage | 12.0 V |
| Battery quantity | 1 |
| Dimensions (L×W×H) | 2920×2590×2130 mm |
| Dry weight | 991 kg |
| Sound level | 70.0 dBA @ 23.0 m |
| Tank runtime | 24.5 hr |
Engine
| Oil capacity | 10.4 L |
|---|---|
| Coolant capacity | 16.6 L |
| Displacement | 2.2 L |
| Aspiration | Turbocharged |
| Rated speed | 1800 rpm |
Maintenance & consumables
for the Isuzu 4LE2TAGV08| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Inspect and replace air filter element as required. | — | find | ||
| Fuel filter | 69858 | Amazon eBay $42.74 PartsGeek | |||
| Oil filter | 670570304 | 500 hr | PartsGeek FridayParts $20.19 | ||
| Belt | Inspect and replace fan belt as required. | — | find | ||
| Coolant | Check coolant level daily; add coolant if needed. | — | 1000 hr | ||
| Oil | Change oil and oil filter every 500 hours after initial break-in. | 4.7 L | — | 500 hr |
Compatible filters for the Isuzu 4LE2TAGV08 — cross-referenced via Donaldson. Options to verify against your serial number, not confirmed for this exact unit.
- Air filter: Generac OE3557 Generac OE3656 Isuzu 8972319000 Isuzu 5864014350 Isuzu 8972599390
Common questions
What is the power rating of the Generac MLT4200IV?
The Generac MLT4200IV is rated 30 kW standby (40.2 kVA).
What engine does the Generac MLT4200IV use?
The Generac MLT4200IV is powered by the Isuzu 4LE2TAGV08 engine.
What is the oil capacity of the Generac MLT4200IV?
The Isuzu 4LE2TAGV08 engine in the Generac MLT4200IV has an oil capacity of 10.4 liters.
What alternator does the Generac MLT4200IV use?
The Generac MLT4200IV uses a Marathon 334CSA3028 alternator.
Troubleshooting
7Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Unit cranks but does not start | Low fuel level, Restricted air filter, Fuel flow obstructed, Air in fuel system, Glow plug(s) inoperable | Verify fuel level in tank., Inspect air filter for blockage., Inspect fuel supply hose from tank to fuel filter for cracks and abrasion., Check fuel pump operation., Purge air from fuel system., See the OEM engine manual for more information. |
| Unit starts but stumbles and dies | Low ambient temperature, Intake heat inoperable, Air in fuel lines, High coolant temperature shutdown | Verify if ambient temperature is within unit limits., Inspect engine air inlet heater function., Purge air from fuel lines., Allow engine to cool. Check coolant level in radiator. Add coolant level if needed., Inspect radiator shroud and ducting for blockage and remove any foreign matter., Inspect for visible leaks. Check tension of water pump drive belt., Contact a GMASD to replace., Remove load on generator and restart engine. Check coolant temperature and shut engine down immediately if it starts to overheat. |
| Mast lights off, checking inside control box | Loose lighting connections | Inspect the connections inside the control box. |
| Loose mast cable connector | Verify outside connector is connected properly to inside control box. | |
| Generator output incorrect | Check the incoming voltage to the ballast driver by checking the available voltage on the GFCI receptacle. Incoming voltage should be 120V ± 5V. If voltage is incorrect, the generator may require service. | |
| One or more lights do not turn on | Light breaker tripped. | Inspect light breakers. |
| Lights not turned on | Inspect electronic control to see if lights are on. Turn lights on. | Turn lights on. If problems continue, contact Generac Mobile at 1-800-926-9768 for assistance. |
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 | |
|---|---|---|---|---|
| 002306 | grease fitting and pump grease into the fitting until new grease is visible around the nozzle of the grease gun. Use only a high quality grease made specifically for lubrication of wheel bearings. | B | Injector | PartsGeek |
| 000265 | Film of grease on the coupler will extend coupler life and eliminate squeaking. | 1 | Service part / kit | PartsGeek |
| 000393a | Generator Serial No. | Service part / kit | PartsGeek | |
| 000394 | WARNING | Service part / kit | PartsGeek | |
| 002832 | Film of grease on the coupler will extend coupler life and eliminate squeaking. | 1 | Service 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
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Prime | 2.1 | ||
| Standby | 7.8 |
Available documents
Owner's manual — A0003354601 (Generac)