19 1250–1255 kw diesel generator models side by side — power, phase, sound level, weight and fuel tank capacity, compiled from manufacturer specification sheets.
| Model | Standby | Phase | Sound | Weight | Fuel tank |
|---|---|---|---|---|---|
| Kohler KD1250-4 | 1250.0 kW | 3 | 97.0 dBA | 11914.0 kg | 5863.0 L |
| Caterpillar 3512B TA | 1250.0 kW | 3-phase | — | 14325.0 kg | — |
| MTU 16V2000 DS1250 | 1250.0 kW | 3 | 96.3 dBA | 7100.0 kg | — |
| MTU 18V2000 DS1250 | 1250.0 kW | 3 | 88.4 dBA | 9525.0 kg | — |
| MTU 12V4000 DS1250 | 1250.0 kW | 3 | 91.9 dBA | 16413.0 kg | — |
| Cummins/Onan DFLC | 1250.0 kW | Three Phase | — | 10864.0 kg | — |
| Cummins/Onan KTA-50G3 | 1250.0 kW | 3 | — | — | — |
| Cummins/Onan DQGAA | 1250.0 kW | 3 | — | 10989.0 kg | — |
| Katolight D1250FRZ4 | 1250.0 kW | 3 | 87.5 dBA | 8558.0 kg | — |
| Katolight D1250FNZ4 | 1250.0 kW | 3 | 87.5 dBA | 8558.0 kg | — |
| Katolight D1250FSZ4 | 1250.0 kW | 3 | 87.5 dBA | 8558.0 kg | — |
| Cummins/Onan C1250D6E | 1250.0 kW | 3 | — | 9197.0 kg | — |
| Cummins/Onan 1250DFLC | 1250.0 kW | 1 or 3 | — | — | — |
| AKSA AD1250 | 1250.0 kW | 3 | 65.0 dBA | 2200.0 kg | 100.0 L |
| SDMO XS 1250 UC | 1250.0 kW | Three Phase | 79.0 dBA | 20202.0 kg | 1000.0 L |
| SDMO EXEL 2 X 1250 UC | 1250.0 kW | Three phase | — | — | — |
| Generac IDLC1250 | 1250.0 kW | 3 | — | 11814.0 kg | — |
| Igsa GSMI21250L-UL | 1250.0 kW | 3 | 110.0 dBA | — | — |
| SDMO X1250UC | 1250.0 kW | 3 | — | 9162.0 kg | — |
Among 1250–1255 kW Diesel generators in this comparison, the AKSA AD1250 is quietest at 65.0 dBA.
Among 1250–1255 kW Diesel generators in this comparison, the AKSA AD1250 is lightest at 2200.0 kg dry weight.
Among 1250–1255 kW Diesel generators in this comparison, the Kohler KD1250-4 has the largest fuel tank at 5863.0 L.
Not every model reports every spec — blanks mean the source document didn't state that figure, not that the value is zero.