Isuzu 4LE2X vs SDEC 4ZT3.2-G12
Compare Isuzu 4LE2X and SDEC 4ZT3.2-G12 by catalog output, operating duty, frequency and engine specifications. Their listed displacements are 2.179 L and 3.2 L, respectively. Start with the same duty and frequency, then check each model’s source and package conditions. These records alone do not establish interchangeability.
| Specification | Isuzu 4LE2X | SDEC 4ZT3.2-G12 |
|---|---|---|
| Standby electrical (50 Hz) | 40.6 kWe | 41 kWe |
| Prime electrical (50 Hz) | 36.9 kWe | 38 kWe |
| Standby electrical (60 Hz) | 48.5 kWe | 41 kWe |
| Prime electrical (60 Hz) | 44.1 kWe | 38 kWe |
| Displacement | 2.179 L | 3.2 L |
| Configuration | L4 | L4 |
| Cylinders | 4 | 4 |
| Recorded engine speed | 1,800 RPM | 1,500 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Recorded emissions classification | U.S. EPA Final Tier 4 | China National Stage II / Unregulated |
| Dry weight | Not listed | Not listed |
| Origin | Japan | China |
Isuzu 4LE2X: Electrical output includes catalog estimates. Check the calculation basis and source document on the model page; these are not verified complete-generator ratings. Rating details
Compare matching ratings
Read across a row to compare the same operating duty and frequency. kWe is electrical output; mechanical kW is power at the engine shaft. kVA is apparent electrical power and is shown only when kWe is missing, without converting it. “Not listed” means the record lacks that rating, not zero output. Continuous and prime duties are kept separate. Check source documents, units and site conditions before comparing values.
An emissions classification in the catalog is not proof of certification for your engine or installation. Confirm the exact model, applicable documents and generator configuration.
Isuzu 4LE2X: Review the model record and available supporting documents
SDEC 4ZT3.2-G12: Review the model record and available supporting documents
Choosing between Isuzu 4LE2X and SDEC 4ZT3.2-G12
Use this comparison as an engineering shortlist, then confirm the complete generator package against load profile, voltage, 50/60 Hz frequency, duty class, emissions rules, cooling margin, altitude, ambient temperature, enclosure design, controller features, and alternator sizing.