FPT NEF67 TM1X vs SDEC 6HTAA6.5-G21
Compare FPT NEF67 TM1X and SDEC 6HTAA6.5-G21 by recorded output, operating duty, frequency and engine specifications. Their listed displacements are 6.7 L and 6.5 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 | FPT NEF67 TM1X | SDEC 6HTAA6.5-G21 |
|---|---|---|
| Standby electrical (50 Hz) | Not listed | 127 kWe |
| Prime electrical (50 Hz) | Not listed | 115 kWe |
| Standby electrical (60 Hz) | 129 kWe | 135 kWe |
| Prime electrical (60 Hz) | 117 kWe | 122 kWe |
| Other recorded mechanical power (duty unspecified) | 141 kW | Not listed |
| Displacement | 6.7 L | 6.5 L |
| Configuration | L6 | L6 |
| Cylinders | 6 | 6 |
| Recorded engine speed | 1,800 RPM | 1,500 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Recorded emissions classification | U.S. EPA Tier 3 | China National Stage III / Unregulated |
| Dry weight | Not listed | Not listed |
| Origin | Italy | China |
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.
FPT NEF67 TM1X: Review the model record and available supporting documents
SDEC 6HTAA6.5-G21: Review the model record and available supporting documents
Choosing between FPT NEF67 TM1X and SDEC 6HTAA6.5-G21
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.