Kubota D722-E3B-CHN-2 vs Yanmar 3TNM68-HGE
The Kubota D722-E3B-CHN-2 and Yanmar 3TNM68-HGE are both diesel generator engines in a similar power class. Both are rated at roughly 14 kVA. Displacement is 0.722 L versus 0.668 L. The table below compares their full specifications side by side.
| Specification | Kubota D722-E3B-CHN-2 | Yanmar 3TNM68-HGE |
|---|---|---|
| Headline rating | 14 kVA | 14 kVA |
| Standby (50 Hz) | — | 10.8 kWe |
| Prime (50 Hz) | — | — |
| Standby (60 Hz) | 11 kWe | 12.8 kWe |
| Prime (60 Hz) | 10 kWe | — |
| Displacement | 0.722 L | 0.668 L |
| Configuration | L3 | L3 |
| Cylinders | 3 | 3 |
| Rated speed | 3,600 RPM | 3,000 / 3,600 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Unregulated | U.S. EPA Tier 2 |
| Dry weight | — | — |
| Origin | Japan | Japan |
Choosing between Kubota D722-E3B-CHN-2 and Yanmar 3TNM68-HGE
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.