Caterpillar 3612 vs Jichai 12V26/32-D
The Caterpillar 3612 and Jichai 12V26/32-D are both diesel generator engines in a similar power class. The Caterpillar 3612 is the higher-output unit (5,375 kVA vs 5,000 kVA). Displacement is 221.6 L versus 203.9 L. The table below compares their full specifications side by side.
| Specification | Caterpillar 3612 | Jichai 12V26/32-D |
|---|---|---|
| Headline rating | 5,375 kVA | 5,000 kVA |
| Standby (50 Hz) | 4,300 kWe | — |
| Prime (50 Hz) | 3,880 kWe | 4,000 kWe |
| Standby (60 Hz) | 4,000 kWe | — |
| Prime (60 Hz) | 3,640 kWe | 3,600 kWe |
| Displacement | 221.6 L | 203.9 L |
| Configuration | V12 | V12 |
| Cylinders | 12 | 12 |
| Rated speed | 1,000 / 1,200 RPM | 1,000 / 1,200 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | U.S. EPA Tier 2 | IMO Tier II |
| Dry weight | — | — |
| Origin | United States | China |
Choosing between Caterpillar 3612 and Jichai 12V26/32-D
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 3612 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.