Cummins B6.7G18 vs Yuchai YC6A305-D32
The Cummins B6.7G18 and Yuchai YC6A305-D32 are both diesel generator engines in a similar power class. Both are rated at roughly 237 kVA. Displacement is 6.7 L versus 7.252 L. The table below compares their full specifications side by side.
| Specification | Cummins B6.7G18 | Yuchai YC6A305-D32 |
|---|---|---|
| Headline rating | 235 kVA | 238 kVA |
| Standby (50 Hz) | 188 kWe | — |
| Prime (50 Hz) | 172 kWe | — |
| Standby (60 Hz) | 205 kWe | 190 kWe |
| Prime (60 Hz) | 188 kWe | 176 kWe |
| Displacement | 6.7 L | 7.252 L |
| Configuration | L6 | L6 |
| Cylinders | 6 | 6 |
| Rated speed | 1,500 / 1,800 RPM | 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | U.S. EPA Final Tier 4 / EU Stage V | China National Stage III / Unregulated |
| Dry weight | — | — |
| Origin | United States / United Kingdom | China |
Choosing between Cummins B6.7G18 and Yuchai YC6A305-D32
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 Yuchai YC6A305-D32 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.