Isuzu 4JJ1X vs Perkins 1104D-44TG1
The Isuzu 4JJ1X and Perkins 1104D-44TG1 are both diesel generator engines in a similar power class. Both are rated at roughly 71 kVA. Displacement is 2.999 L versus 4.4 L. The table below compares their full specifications side by side.
| Specification | Isuzu 4JJ1X | Perkins 1104D-44TG1 |
|---|---|---|
| Headline rating | 71 kVA | 71 kVA |
| Standby (50 Hz) | 56.4 kWe | — |
| Prime (50 Hz) | 51.3 kWe | — |
| Standby (60 Hz) | 70.3 kWe | 57 kWe |
| Prime (60 Hz) | 63.9 kWe | — |
| Displacement | 2.999 L | 4.4 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 | U.S. EPA Final Tier 4 | U.S. EPA Tier 3 |
| Dry weight | — | — |
| Origin | Japan | China |