Yanmar 4TNV98T-ZGGES vs Yunnei DEF30CDA5
The Yanmar 4TNV98T-ZGGES and Yunnei DEF30CDA5 are both diesel generator engines in a similar power class. Both are rated at roughly 48 kVA. Displacement is 3.119 L versus 3 L. The table below compares their full specifications side by side.
| Specification | Yanmar 4TNV98T-ZGGES | Yunnei DEF30CDA5 |
|---|---|---|
| Headline rating | 47 kVA | 48 kVA |
| Standby (50 Hz) | 37.7 kWe | — |
| Prime (50 Hz) | — | 38 kWe |
| Standby (60 Hz) | 45.4 kWe | — |
| Prime (60 Hz) | — | — |
| Displacement | 3.119 L | 3 L |
| Configuration | L4 | L4 |
| Cylinders | 4 | 4 |
| Rated speed | 1,500 / 1,800 RPM | 1,500 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | U.S. EPA Tier 3 | Euro Stage V |
| Dry weight | — | — |
| Origin | Japan | China |
Choosing between Yanmar 4TNV98T-ZGGES and Yunnei DEF30CDA5
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 DEF30CDA5 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.