Caterpillar C13 vs Isuzu 6WG1X
Compare Caterpillar C13 and Isuzu 6WG1X by recorded output, operating duty, frequency and engine specifications. Their listed displacements are 12.5 L and 15.681 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 | Caterpillar C13 | Isuzu 6WG1X |
|---|---|---|
| Standby electrical (50 Hz) | 350 kWe | 349.5 kWe |
| Prime electrical (50 Hz) | 320 kWe | 317.7 kWe |
| Standby electrical (60 Hz) | 400 kWe | 378.2 kWe |
| Prime electrical (60 Hz) | 365 kWe | 343.8 kWe |
| Displacement | 12.5 L | 15.681 L |
| Configuration | L6 | L6 |
| Cylinders | 6 | 6 |
| Recorded engine speed | 1,500 RPM | 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Recorded emissions classification | U.S. EPA Tier 3 | U.S. EPA Final Tier 4 |
| Dry weight | Not listed | Not listed |
| Origin | United States | Japan |
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.
Caterpillar C13: Review the model record and available supporting documents
Isuzu 6WG1X: Review the model record and available supporting documents
Choosing between Caterpillar C13 and Isuzu 6WG1X
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.