28 45–50 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 |
|---|---|---|---|---|---|
| Cummins/Onan 45.0 DEF-15R | 45.0 kW | 3 | — | — | — |
| Perkins 1104C-44G2 | 45.0 kW | — | — | 401.0 kg | — |
| Kohler 45EFOZDJ | 45.0 kW | 1 and 3 | — | 934.0 kg | — |
| Kohler 45EFOZ CJ | 45.0 kW | 3 | — | 934.0 kg | — |
| Laborde Products LPI-Y-45 | 45.0 kW | 3 Phase | — | — | — |
| Laborde Products LPI-Y-45KC | 45.0 kW | 3 Phase | — | — | — |
| FG Wilson P50-3 | 45.0 kW | 3 | 56.4 dBA | 1025.0 kg | 145.0 L |
| MTU 20V4000 DS3300 | 45.0 kW | three-phase | — | 15819.0 kg | — |
| GS Pack GS Pack + 45 | 45.0 kW | — | — | — | — |
| MTU 16V4000 | 45.0 kW | — | — | — | — |
| MTU 12V 4000 | 45.0 kW | — | — | — | — |
| MTU 20V 4000 | 45.0 kW | — | — | — | — |
| Yanmar LPI-Y-40kW | 45.0 kW | 3 | — | 1600.0 kg | — |
| Deutz D 2011 L4 i | 46.0 kW | — | — | 270.0 kg | — |
| Simson-Maxwell SKW30 T6-T3 | 46.3 kW | 3 | — | 583.8 kg | 710.4 L |
| Olympian GEP50 | 46.4 kW | 3 Phase | — | 840.0 kg | 176.0 L |
| Kohler 55REOZT4 | 47.0 kW | 3 | 69.0 dBA | 1989.0 kg | 386.0 L |
| Kohler 48REOZK4 | 47.0 kW | — | 69.0 dBA | 1989.0 kg | 386.0 L |
| Kohler KDI 2504 TCR | 47.1 kW | — | — | 267.0 kg | — |
| Doosan G60-SIIIA | 48.0 kW | Single | 92.0 dBA | 1734.0 kg | 177.0 L |
| FG Wilson P65 | 48.0 kW | 3 | 66.6 dBA | 463.0 kg | 245.0 L |
| MQ Power DCA-60SSI2 | 48.0 kW | single | — | — | — |
| Generac MMG55DF4 | 48.0 kW | 1 or 3 | 68.0 dBA | 1499.0 kg | 379.0 L |
| Generac RD048 | 48.0 kW | 1Ø, 3Ø | 70.0 dBA | 886.0 kg | 234.7 L |
| Cummins/Onan 4BTAA3.3-G15 | 48.0 kW | — | — | 332.0 kg | — |
| Generac SD060 | 48.0 kW | 1,3 | — | 1100.0 kg | 300.0 L |
| Olympian GEP65-9 | 48.0 kW | 3 | — | 874.0 kg | 219.0 L |
| Simson-Maxwell SDAC50 T6-T3 | 49.0 kW | 3 | — | 829.5 kg | 508.8 L |
Among 45–50 kW Diesel generators in this comparison, the FG Wilson P50-3 is quietest at 56.4 dBA.
Among 45–50 kW Diesel generators in this comparison, the Kohler KDI 2504 TCR is lightest at 267.0 kg dry weight.
Among 45–50 kW Diesel generators in this comparison, the Simson-Maxwell SKW30 T6-T3 has the largest fuel tank at 710.4 L.
Not every model reports every spec — blanks mean the source document didn't state that figure, not that the value is zero.