Service parts for the 4LE2TAGV-03
Grouped by system, with how many of each the parts manual calls for.
Fuel 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 | 20 kW |
| Standby kVA | 20 |
| Prime power | 19 kW |
| Emissions | 4f |
| Controller | L401 |
| Oil capacity | 10.4 L |
| Alternator | Marathon 334CSA3028 |
| Voltage options | 120 V, 240 V |
| Phase | 1Ø |
| Rated current | 83 A |
| Power factor | 1.0 |
| Circuit breaker | 100 A |
| Battery group | 24 |
| Battery cranking | 720 CCA |
| Battery voltage | 12 V |
| Battery quantity | 1 |
| Dry weight | 2350 kg |
| Fuel tank | 931.0 L |
| Tank runtime | 109 hr |
Engine
| Oil capacity | 10.4 L |
|---|---|
| Coolant capacity | 17.0 L |
| Displacement | 2.18 L |
| Aspiration | Liquid cooled |
| Rated speed | 1800 rpm |
Same engine, other brands
3 brandsThe Isuzu 4LE2TAGV-03 in this set also powers 7 generator sets sold under 3 other brands. Service parts and maintenance intervals for the engine are shared; enclosure, alternator, controller and ratings are not.
| Brand | Models |
|---|---|
| Generac | MDG20IF4-MLG20IF4, MLG20IF4, MLT4200IF4, MMG25IF4 |
| Magnum | MLT4200IF4, MMG25IF4 |
| John Deere | MLG20IF4 |
Maintenance & consumables
for the Isuzu 4LE2TAGV-03| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Dry type cartridge air filter | — | 250 hr | ||
| Fuel filter | 69858 | 500 hr | Amazon eBay $21.83 NAPA $15.34 FridayParts $36.28 | ||
| Oil filter | 670570304 | 1000 hr | Amazon eBay $16.89 PartsGeek $7.98 NAPA $9.09 FridayParts $20.19 | ||
| Battery | Clean Battery | — | 1000 hr | ||
| Belt | Check Fan Belt Tension (Replace If Necessary) | — | 1000 hr | ||
| Coolant | Check Coolant Level | — | 250 hr | ||
| Oil | Check Oil Level | — | 250 hr | ||
| Spark plug | Replace Air Filter Element | — | 1000 hr |
Compatible filters for the Isuzu 4LE2TAGV-03 — 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 Isuzu 4LE2TAGV-03?
The Isuzu 4LE2TAGV-03 is rated 20 kW standby (20.0 kVA).
What engine does the Isuzu 4LE2TAGV-03 use?
The Isuzu 4LE2TAGV-03 is powered by the Isuzu 4LE2TAGV-03 engine.
How much oil does the Isuzu 4LE2TAGV-03 take?
The Isuzu 4LE2TAGV-03 engine in the Isuzu 4LE2TAGV-03 has an oil capacity of 10.4 liters.
What is the cooling system capacity of the Isuzu 4LE2TAGV-03?
The Isuzu 4LE2TAGV-03 cooling system holds 17 liters (4.5 US gallons) for the engine, per the manufacturer specification sheet.
What is the continuous rating of the Isuzu 4LE2TAGV-03?
The Isuzu 4LE2TAGV-03 is rated 19 kW prime (19 kVA), against 20 kW standby.
How much does the Isuzu 4LE2TAGV-03 weigh?
The Isuzu 4LE2TAGV-03 has a dry weight of 2350 kg (5180 lb).
How big is the fuel tank on the Isuzu 4LE2TAGV-03?
The Isuzu 4LE2TAGV-03 has a 931 liter (246 US gallon) fuel tank, giving about 109 hours of runtime.
What voltages is the Isuzu 4LE2TAGV-03 available in?
The Isuzu 4LE2TAGV-03 is offered in 120 V, 240 V, 1Ø-phase.
What size battery does the Isuzu 4LE2TAGV-03 need?
The Isuzu 4LE2TAGV-03 uses 1 battery, 12 V each, 720 CCA, group 24, per the manufacturer specification sheet.
What alternator does the Isuzu 4LE2TAGV-03 use?
The Isuzu 4LE2TAGV-03 uses a Marathon 334CSA3028 alternator.
What oil filter does the Isuzu 4LE2TAGV-03 use?
The Isuzu 4LE2TAGV-03 uses oil filter part number 670570304.
Which fuel filter part number does the Isuzu 4LE2TAGV-03 take?
The Isuzu 4LE2TAGV-03 uses fuel filter part number 69858.
What air filter fits the Isuzu 4LE2TAGV-03?
The Isuzu 4LE2TAGV-03 uses air filter part numbers GENERAC OE3557, GENERAC OE3656.
Troubleshooting
12Fault codes
| Code | Meaning | Remedy |
|---|---|---|
| 0 | In case of an emergency, always press the emergency stop switch located on the side of the unit to stop the engine immediately. The Stop/Reset (O) button may delay the engine shutdown if stop faults exist. | To prevent damage to the generator and connected equipment, remove all loads from the generator by opening all circuit breakers (turn to the OFF (O) position) before pressing the Stop/Reset (O) button. |
Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Mast lights on but the light output is low | Fixture and/or lens is dirty | Clean reflective surface inside fixture and both inside and outside surface of glass lens. Use mild soap and water to clean lens. Other chemicals may have an adverse effect on the glass. |
| Mast lights on but the light output is low | Bulb worn due to normal use | Replace bulb. |
| Mast lights on but the light output is low | Mast coil cord, mast junction box and mast light connections | Check the mast coil cord, mast junction box and mast light connections. |
| Mast lights on but the light output is low | Generator output incorrect | Check the incoming voltage. Incoming voltage should be 120V +/- 5V. If the voltage is incorrect, adjust the voltage regulator. |
| Mast lights on but the light output is low | Low transformer output | The voltage from the transformer should read approximately 400VAC as the light "strikes" (induces an arc), then drop and slowly rise back up to stabilize at 240-260VAC. On quick disconnect models, measure across the junction box terminals when the light is unplugged. On hard wired models, remove the mast junction box cover and insert the wire probes into the connector blocks for the light and ground. If proper voltage is not achieved, perform capacitor check to determine if the capacitor or coil needs to be replaced. |
| Low oil pressure shutdown | Low engine oil level | Check the level of the engine oil with the dipstick. The engine controller will shut the engine down when the oil pressure is less than 15 psi (103 kPa). Add oil if required. |
| Low oil pressure shutdown | Oil leaks | Visually inspect the engine for oil leaks. |
| Low oil pressure shutdown | Loss of oil pressure | If the oil level is good, restart the unit and verify the loss of oil pressure. Shut the engine down immediately if the oil pressure value does not read 5 psi (34 kPa) within five seconds. |
| Low oil pressure shutdown | Oil pressure sender | Check the oil pressure sender. To identify corrective action, refer to the troubleshooting section of the engine operator's manual provided with the unit. |
| High coolant temperature shutdown | Low coolant level | Check the coolant level in the overflow jug. |
| High coolant temperature shutdown | High coolant temperature | Restart the engine and read the coolant temperature to verify a high coolant temperature shutdown. Stop the engine immediately if the coolant temperature is 210°F (99°C) or more. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
4| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 01035 | Central Lift Point | Central lift point | Amazon eBay | |
| 01144 | Controller | Controller | Amazon eBay | |
| 90243 | Air Filter Element | Air filter | 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 | 29.53 | 7.8 | |
| Standby | 7.95 | 2.1 |