Caterpillar C7.1 vs SDEC 6HTAA7.2-G5E1
The Caterpillar C7.1 and SDEC 6HTAA7.2-G5E1 are both diesel generator engines in a similar power class. Both are rated at roughly 165 kVA. Displacement is 7 L versus 7.2 L. The table below compares their full specifications side by side.
| Specification | Caterpillar C7.1 | SDEC 6HTAA7.2-G5E1 |
|---|---|---|
| Headline rating | 165 kVA | 165 kVA |
| Standby (50 Hz) | 132 kWe | 132 kWe |
| Prime (50 Hz) | 120 kWe | 120 kWe |
| Standby (60 Hz) | 150 kWe | — |
| Prime (60 Hz) | 135 kWe | — |
| Displacement | 7 L | 7.2 L |
| Configuration | L4 | L6 |
| Cylinders | 4 | 6 |
| Rated speed | 1,500 / 1,800 RPM | 1,500 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | U.S. EPA Tier 3 | Euro Stage V |
| Dry weight | — | — |
| Origin | United States | China |
Choosing between Caterpillar C7.1 and SDEC 6HTAA7.2-G5E1
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.