Kohler KDI3404TM vs SDEC 4HT4.3-G22
The Kohler KDI3404TM and SDEC 4HT4.3-G22 are both diesel/hvo generator engines in a similar power class. Both are rated at roughly 76 kVA. Displacement is 3.4 L versus 4.3 L. The table below compares their full specifications side by side.
| Specification | Kohler KDI3404TM | SDEC 4HT4.3-G22 |
|---|---|---|
| Headline rating | 75 kVA | 76 kVA |
| Standby (50 Hz) | — | 61 kWe |
| Prime (50 Hz) | — | 56 kWe |
| Standby (60 Hz) | 60 kWe | 67 kWe |
| Prime (60 Hz) | 54 kWe | 60 kWe |
| Displacement | 3.4 L | 4.3 L |
| Configuration | L4 | L4 |
| Cylinders | 4 | 4 |
| Rated speed | 1,800 RPM | 1,500 / 1,800 RPM |
| Fuel | Diesel/HVO | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | U.S. EPA Tier 3 | China National Stage III / Unregulated |
| Dry weight | — | — |
| Origin | Italy | China |
Choosing between Kohler KDI3404TM and SDEC 4HT4.3-G22
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 4HT4.3-G22 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.