SDEC 4Z3.2-G12 vs Yanmar 4TNV98C-GGE
The SDEC 4Z3.2-G12 and Yanmar 4TNV98C-GGE are both diesel generator engines in a similar power class. Both are rated at roughly 48 kVA. Displacement is 3.2 L versus 3.319 L. The table below compares their full specifications side by side.
| Specification | SDEC 4Z3.2-G12 | Yanmar 4TNV98C-GGE |
|---|---|---|
| Headline rating | 48 kVA | 47 kVA |
| Standby (50 Hz) | 38 kWe | — |
| Prime (50 Hz) | 34 kWe | — |
| Standby (60 Hz) | 38 kWe | 37.5 kWe |
| Prime (60 Hz) | 34 kWe | 34.1 kWe |
| Displacement | 3.2 L | 3.319 L |
| Configuration | L4 | L4 |
| Cylinders | 4 | 4 |
| Rated speed | 1,500 / 1,800 RPM | 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | China National Stage II / Unregulated | Euro Stage V / U.S. EPA Final Tier 4 |
| Dry weight | — | — |
| Origin | China | Japan |
Choosing between SDEC 4Z3.2-G12 and Yanmar 4TNV98C-GGE
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 SDEC 4Z3.2-G12 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.