Caterpillar C18 vs Volvo Penta TWD1673GE
The Caterpillar C18 and Volvo Penta TWD1673GE are both diesel generator engines in a similar power class. Both are rated at roughly 781 kVA. Displacement is 18.13 L versus 16.1 L. The table below compares their full specifications side by side.
| Specification | Caterpillar C18 | Volvo Penta TWD1673GE |
|---|---|---|
| Headline rating | 780 kVA | 781 kVA |
| Standby (50 Hz) | 624 kWe | — |
| Prime (50 Hz) | 564 kWe | — |
| Standby (60 Hz) | 750 kWe | 625 kWe |
| Prime (60 Hz) | 680 kWe | 570 kWe |
| Displacement | 18.13 L | 16.1 L |
| Configuration | L6 | L6 |
| Cylinders | 6 | 6 |
| Rated speed | 1,500 / 1,800 RPM | 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | U.S. EPA Tier 2 | U.S. EPA Final Tier 4 |
| Dry weight | — | — |
| Origin | United States | Sweden |
Choosing between Caterpillar C18 and Volvo Penta TWD1673GE
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 Volvo Penta TWD1673GE has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.