Cummins 6BT5.9-G2 vs Xinchai 4K41RD
The Cummins 6BT5.9-G2 and Xinchai 4K41RD are both diesel generator engines in a similar power class. Both are rated at roughly 119 kVA. Displacement is 5.9 L versus 4.1 L. The table below compares their full specifications side by side.
| Specification | Cummins 6BT5.9-G2 | Xinchai 4K41RD |
|---|---|---|
| Headline rating | 118 kVA | 119 kVA |
| Standby (50 Hz) | 94 kWe | 95 kWe |
| Prime (50 Hz) | 75 kWe | 86 kWe |
| Standby (60 Hz) | 105 kWe | 104 kWe |
| Prime (60 Hz) | 84 kWe | 95 kWe |
| Displacement | 5.9 L | 4.1 L |
| Configuration | L6 | L4 |
| Cylinders | 6 | 4 |
| Rated speed | 1,500 / 1,800 RPM | 1,500 / 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Unregulated | Unregulated |
| Dry weight | — | — |
| Origin | China | China |
Choosing between Cummins 6BT5.9-G2 and Xinchai 4K41RD
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 Xinchai 4K41RD has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.