The Isuzu 4LE1NYGV-03G is a 2.2 L 4-cylinder engine rated at 1800 rpm, producing up to 31.5 kW. It powers generator sets from Isuzu.
Also known as: Isuzu 4LE1NYGV-03G
Part of the Isuzu 4LE1NYGV engine family — 7 variants share parts & fitment.
| Displacement | 2.2 L |
|---|---|
| Cylinders | 4 |
| Rated speed | 1800 rpm |
| Gross power | 31 kW |
| Symptom | Remedy |
|---|---|
| Mast light is too hot | Allow light to cool 10-15 minutes before restarting. |
| Faulty bulb connection | Check that the bulb is tight in the socket. |
| Bulb broken | Check for broken arc tube or outer bulb jacket, broken or loose components in bulb envelope or blackening/deposits inside tube. |
| Mast lights off but ballast indicators on control panel are on | 1. Mast light is too hot. Allow light to cool 10-15 minutes before restarting. 2. Faulty bulb connection. Check that the bulb is tight in the socket. 3. Bulb broken. Check for broken arc tube or outer bulb jacket, broken or loose components in bulb envelope or blackening/deposits inside tube. 4. Check the connections inside the mast junction box and each mast light housing/socket. 5. Check the mast electrical cord for damage and check the cord connections inside the control box. |
| Mast lights off and ballast indicators on control panel are off | 1. Check the connections inside the control box and inside each ballast box. 2. Generator output incorrect. Check the incoming voltage to the ballast by checking the available voltage on the duplex receptacle. Incoming voltage should be 120V +/- 5V. If voltage is incorrect, the engine speed may need to be adjusted or generator may require service. 3. Low transformer output. The voltage from the transformer should read approximately 400 VAC as the light “strikes” (induces an arc), then drop and slowly rise back up to stabilize at 240-260 VAC. 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. |
| Mast lights on but the light output is low | 1. Fixture or lens are 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. 2. Bulb worn due to normal use. Replace bulb. 3. Check the mast coil cord, mast junction box and mast light connections. 4. Generator output incorrect. Check the incoming voltage to the ballast. Incoming voltage should be 120V +/- 5V. If voltage is incorrect, engine speed may need to be adjusted or generator may require service. 5. Low transformer output. The voltage from the transformer should read approximately 400 VAC as the light “strikes” (induces an arc), then drop and slowly rise back up to stabilize at 240-260 VAC. 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. |
Fault codes and symptom→remedy steps extracted from this engine’s service/owner documentation; verify against the official manual before servicing.
| Part # | Description | Category |
|---|---|---|
| 12969 | Filter, air - metallic | air_filter |
| 12973 | Element, air filter | air_filter |
| 100A | Alternator | alternator |
| 26049 | Alternator, Isuzu | alternator |
| 22258 | Belt, fan | belt |
| 15006 | Cable, .188 in. x 27 ft. w/ball swedge | cable |
| PE4024HF285 | Engine Model PE4024HF285 | engine |
| 00130 | Fine Voltage Adjustment Screw | fine voltage adjustment screw |
| 15331 | Fuel filter element | fuel_filter |
| 13378 | Gasket, silicone | gasket |
| 285PSL5260 | Generator Model 285PSL5260 | generator |
| 002823a | Grease | grease |
| 004527 | Optional Lower Radiator Hose Heater Use and Maintenance Manual | hose |
| 15612 | Cable, 16-7 cold mast drape | hose |
| 50018 | Hose, fuel - .312 ID, 50 psi, SAE 30R7 | hose |
| 002824a | Oil | oil |
| 002825a | Oil | oil |
| 15183 | Filter, oil - Isuzu | oil_filter |
| 002806 | Phase rotation must be compatible | other_service |
| 00305 | OPERATING MANUAL | other_service |
| 004526 | other_service | |
| 004528 | other_service | |
| 004542 | Control Power switch | other_service |
| 004544 | Main Circuit Breaker | other_service |
| 004551 | Equipment Damage. Failure to perform a daily inspection could result in damage to the unit. | other_service |
| 004647 | Unit Dimensions | other_service |
| 004650 | Component Locations | other_service |
| 004664 | Wiring and connections to unit | other_service |
| 004678 | Main Control Panel | other_service |
| 004680 | other_service | |
| 004681 | other_service | |
| 01203 | Combination Light Tower Generator & Water Trailer | other_service |
| 12142 | DECAL, GROUND | other_service |
| 13370 | Assembly, tether | other_service |
| 13660 | Radiator, 20kW wide | other_service |
| 14262 | Sheave, 3 in. | other_service |
| 15002 | Clamp, cable - .188 | other_service |
| 15003 | Thimble, cable | other_service |
| 16600 | Winch, manual | other_service |
| 19258 | VALVE LAPPER | other_service |
| 1NYGV-03G | other_service | |
| 22419B | BRACKET, Support | other_service |
| 22870 | Decal, Caution for 480V CSA | other_service |
| 23827 | Decal, Controller Switches | other_service |
| 23846 | Decal, Controller Instructions | other_service |
| 24942 | Decal, Patented 7,642,665,B2 | other_service |
| 26286 | Decal, Hood Service | other_service |
| 26386 | Decal, Pinch Point | other_service |
| 26387 | Decal Set, Rear Hood Latch | other_service |
| 27733 | Decal, Interior Light Switch Option | other_service |
| 30093 | GSC Alarm Status | other_service |
| 30175 | Decal, UN31A tank caution Located on tank. | other_service |
| 30496 | Decal, 3 Pos Phase Switch Located on Manual Holder. | other_service |
| 34275 | Decal, Caution - 120V & 240V Outlets | other_service |
| 34424 | Decal Set, Voltage Selector Switch (x2) | other_service |
| 34425 | Decal, Terminal Connections - 600V | other_service |
| MIT4150 | 240 VAC 50 Amp Twistlock Outlets | other_service |
| MIT4200 | 240 VAC 30 Amp Twistlock Outlets | other_service |
| 00087 | Twist-Lock Receptacles | receptacle |
| 12398 | Receptacle Panel (2x5-20R, 2xL6-30R, 2x50A) | receptacle_panel |
| 00174 | Engine exhaust system components | seal |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
Other equipment known to use this engine, via filter-application cross-reference — useful for sourcing parts even when your exact machine isn't listed elsewhere on this page.
The Isuzu 4LE1NYGV-03G has a displacement of 2.2 liters with 4 cylinders.
The Isuzu 4LE1NYGV-03G powers 1 generator set(s), including Isuzu 4LE1NYGV-03G.