The Isuzu 4LE1NYGV-03 or 4LE1NYGV-03E is a 2.2 L engine rated at 1800 rpm. It powers generator sets from Magnum, including the MLT5200IV. It holds 8.1 L (2.1 gal) of oil and 11 L (2.9 gal) of coolant.
Also known as: Isuzu 4LE1NYGV-03 or 4LE1NYGV-03E
| Oil capacity | 8.1 L |
|---|---|
| Coolant capacity | 11.0 L |
| Displacement | 2.2 L |
| Rated speed | 1800 rpm |
Compiled from service & troubleshooting documentation across every generator set that uses the Isuzu 4LE1NYGV-03 or 4LE1NYGV-03E.
| Item | Action | Hours | Months | Notes |
|---|---|---|---|---|
| Engine Oil And Oil Filter | Replace | 50 hr | First service — Mitsubishi engine schedule; after initial 50 hours, then regularly scheduled interval | |
| Bolts And Nuts On The Engine | Adjust | First service — Retighten; after initial 50 hours, then regularly scheduled interval; Mitsubishi engine schedule | ||
| Jacks | Lubricate | 12 mo | Jack maintenance to be performed at least annually | |
| Trailer Wheel Bearings | Lubricate | 12 mo | Minimum recommended lubrication every 12 months or 12,000 miles (19,312 km) |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Speed | Engine operating speed | 1800 | rpm | |
| Temperature | Maximum ambient operating temperature | 120 | °F | shut down if above; 49°C |
| Torque | Wheel lug nuts, first pass | 20-25 | ft-lbs | first pass |
| Torque | Wheel lug nuts, second pass | 50-60 | ft-lbs | second pass |
| Torque | Wheel lug nuts, third pass | 90-120 | ft-lbs | third pass |
| Voltage | Incoming voltage to ballast | 120 | V | +/- 5V |
| Voltage | Transformer output at light strike | approximately 400 | VAC | as light strikes |
| Voltage | Transformer output stabilized | 240-260 | VAC | stabilized |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
| Fluid | Grade | Standard | Ambient | Capacity | Notes |
|---|---|---|---|---|---|
| Fuel | diesel | 212.0 L | Use clean diesel fuel only; fuel tank volume |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
⚠ The mast extends up to 25 ft (7.6 m). Make sure area above the unit is open and clear of overhead wires and obstructions.
⚠ Consult local codes for proper grounding requirements.
⚠ Improper use of the lower radiator hose heater could result in damage to the engine or personal injury. Do not modify the location of the lower radiator hose heater.
Tools: grease gun
⚠ Failure to replace a damaged cable could result in breakage.
⚠ NEVER OPERATE THE LIGHTS WITHOUT THE PROTECTIVE LENS COVER, OR WITH A LENS COVER THAT IS CRACKED OR DAMAGED.
⚠ Bulbs become extremely hot when in use. Allow bulb fixture to cool 10-15 minutes before handling or lowering the mast.
⚠ STOP IMMEDIATELY if the mast hangs up, or the winch cable begins to develop slack.
⚠ The unit must be leveled with the outriggers extended before raising the mast. The outriggers must remain extended while the mast is up.
⚠ Do not start the unit if insulation on the electrical cord is cut or worn through.
⚠ Never raise or lower the mast while the unit is operating.
⚠ Do not crank the engine longer than 10 seconds at a time. If the engine will not start, wait 30 seconds to allow the starter motor to cool and then repeat the starting procedure.
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
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-03 or 4LE1NYGV-03E engine has an oil capacity of 8.1 liters.
The Isuzu 4LE1NYGV-03 or 4LE1NYGV-03E has a displacement of 2.2 liters.
The Isuzu 4LE1NYGV-03 or 4LE1NYGV-03E powers 1 generator set(s), including Magnum MLT5200IV.
A commonly reported issue on generators using the Isuzu 4LE1NYGV-03 or 4LE1NYGV-03E is: Mast lights on but the light output is low. Fix: 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..