Cummins 4BTA3.9-G13 vs SDEC 4HTAA4.3-G21
The Cummins 4BTA3.9-G13 and SDEC 4HTAA4.3-G21 are both diesel generator engines in a similar power class. Both are rated at roughly 119 kVA. Displacement is 3.9 L versus 4.3 L. The table below compares their full specifications side by side.
| Specification | Cummins 4BTA3.9-G13 | SDEC 4HTAA4.3-G21 |
|---|---|---|
| Headline rating | 119 kVA | 118 kVA |
| Standby (50 Hz) | 95 kWe | 94 kWe |
| Prime (50 Hz) | 76 kWe | 86 kWe |
| Standby (60 Hz) | — | 104 kWe |
| Prime (60 Hz) | — | 94 kWe |
| Displacement | 3.9 L | 4.3 L |
| Configuration | L4 | L4 |
| Cylinders | 4 | 4 |
| Rated speed | 1,500 RPM | 1,500 / 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Unregulated | China National Stage III / Unregulated |
| Dry weight | — | — |
| Origin | China | China |