Caterpillar 3408 vs Weichai WP13D405E200
The Caterpillar 3408 and Weichai WP13D405E200 are both diesel generator engines in a similar power class. Both are rated at roughly 456 kVA. Displacement is 18 L versus 13 L. The table below compares their full specifications side by side.
| Specification | Caterpillar 3408 | Weichai WP13D405E200 |
|---|---|---|
| Headline rating | 456 kVA | 455 kVA |
| Standby (50 Hz) | 365 kWe | 364 kWe |
| Prime (50 Hz) | 330 kWe | — |
| Standby (60 Hz) | 440 kWe | 403 kWe |
| Prime (60 Hz) | 400 kWe | — |
| Displacement | 18 L | 13 L |
| Configuration | V8 | L6 |
| Cylinders | 8 | 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 Tier 2 | China National Stage II / Unregulated |
| Dry weight | — | — |
| Origin | United States | China |
Choosing between Caterpillar 3408 and Weichai WP13D405E200
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 Caterpillar 3408 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.