Perkins 1004TG1 vs Yunnei DEF30CZJB5
The Perkins 1004TG1 and Yunnei DEF30CZJB5 are both diesel generator engines in a similar power class. Both are rated at roughly 73 kVA. Displacement is 3.99 L versus 3 L. The table below compares their full specifications side by side.
| Specification | Perkins 1004TG1 | Yunnei DEF30CZJB5 |
|---|---|---|
| Headline rating | 72 kVA | 73 kVA |
| Standby (50 Hz) | 57.5 kWe | — |
| Prime (50 Hz) | 52 kWe | — |
| Standby (60 Hz) | 62 kWe | — |
| Prime (60 Hz) | 56.5 kWe | 58 kWe |
| Displacement | 3.99 L | 3 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 | Unregulated | Euro Stage V |
| Dry weight | 433 kg | — |
| Origin | United Kingdom | China |
Choosing between Perkins 1004TG1 and Yunnei DEF30CZJB5
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 DEF30CZJB5 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.