Isuzu 6WG1X vs Weichai WP13D385E200
The Isuzu 6WG1X and Weichai WP13D385E200 are both diesel generator engines in a similar power class. Both are rated at roughly 435 kVA. Displacement is 15.681 L versus 13 L. The table below compares their full specifications side by side.
| Specification | Isuzu 6WG1X | Weichai WP13D385E200 |
|---|---|---|
| Headline rating | 437 kVA | 433 kVA |
| Standby (50 Hz) | 349.5 kWe | 346 kWe |
| Prime (50 Hz) | 317.7 kWe | 315 kWe |
| Standby (60 Hz) | 378.2 kWe | 346 kWe |
| Prime (60 Hz) | 343.8 kWe | 315 kWe |
| Displacement | 15.681 L | 13 L |
| Configuration | L6 | L6 |
| Cylinders | 6 | 6 |
| Rated speed | 1,500 / 1,800 RPM | 1,500 / 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | U.S. EPA Final Tier 4 | China National Stage II / Unregulated |
| Dry weight | — | — |
| Origin | Japan | China |
Choosing between Isuzu 6WG1X and Weichai WP13D385E200
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 Isuzu 6WG1X has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.