Cummins 6BTA5.9-G2 vs Yunnei DEF47CZAB5
The Cummins 6BTA5.9-G2 and Yunnei DEF47CZAB5 are both diesel generator engines in a similar power class. Both are rated at roughly 145 kVA. Displacement is 5.9 L versus 4.7 L. The table below compares their full specifications side by side.
| Specification | Cummins 6BTA5.9-G2 | Yunnei DEF47CZAB5 |
|---|---|---|
| Headline rating | 144 kVA | 145 kVA |
| Standby (50 Hz) | 115 kWe | — |
| Prime (50 Hz) | 92 kWe | — |
| Standby (60 Hz) | 131 kWe | — |
| Prime (60 Hz) | 105 kWe | 116 kWe |
| Displacement | 5.9 L | 4.7 L |
| Configuration | L6 | L4 |
| Cylinders | 6 | 4 |
| Rated speed | 1,500 / 1,800 RPM | 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Unregulated | Euro Stage V |
| Dry weight | — | — |
| Origin | China | China |
Choosing between Cummins 6BTA5.9-G2 and Yunnei DEF47CZAB5
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. The Yunnei DEF47CZAB5 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.