Cummins M15-G8 vs John Deere 6136CG440
The Cummins M15-G8 and John Deere 6136CG440 are both diesel generator engines in a similar power class. Both are rated at roughly 564 kVA. Displacement is 15 L versus 13.6 L. The table below compares their full specifications side by side.
| Specification | Cummins M15-G8 | John Deere 6136CG440 |
|---|---|---|
| Headline rating | 563 kVA | 564 kVA |
| Standby (50 Hz) | 450 kWe | 451 kWe |
| Prime (50 Hz) | 410 kWe | 406 kWe |
| Standby (60 Hz) | 450 kWe | 444 kWe |
| Prime (60 Hz) | 410 kWe | 400 kWe |
| Displacement | 15 L | 13.6 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 | Unregulated | U.S. EPA Final Tier 4 |
| Dry weight | — | — |
| Origin | China | United States |
Choosing between Cummins M15-G8 and John Deere 6136CG440
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 John Deere 6136CG440 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.