58 20–25 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 20EKOZD | 20.0 kW | — | — | — | — |
| Kohler 20EOZD | 20.0 kW | — | — | — | — |
| Kohler 20EFOZD | 20.0 kW | — | — | — | — |
| Kohler 20REOZK | 20.0 kW | 3 | — | 520.0 kg | — |
| Generac RD020 | 20.0 kW | Single Phase,Three Phase | 70.0 dBA | 555.0 kg | 170.3 L |
| Generac MLG 25 | 20.0 kW | — | 68.0 dBA | 744.0 kg | 211.98 L |
| Generac RA02022 | 20.0 kW | 1Ø,3Ø | 65.0 dBA | 690.0 kg | 204.0 L |
| Generac SDC020 | 20.0 kW | — | — | 664.0 kg | — |
| Magnum MMG25FHI | 20.0 kW | single/three | 68.0 dBA | 1038.0 kg | 401.2 L |
| Magnum MLG 20 | 20.0 kW | single | 70.0 dBA | 660.0 kg | 211.98 L |
| Generac MLG20IF4 | 20.0 kW | Single phase | 70.0 dBA | 667.0 kg | 165.4 L |
| Doosan L20 | 20.0 kW | Single phase | — | — | — |
| Northern Lights M844L | 20.0 kW | 1 | — | 440.0 kg | — |
| AKSA APD-ULP20 | 20.0 kW | 3PH | — | — | — |
| Rivera Diesel S.A 1106C-E66TAG4 | 20.0 kW | — | 69.3 dBA | 454.0 kg | — |
| Cummins/Onan DGAB | 20.0 kW | I,3 | — | — | — |
| Cummins/Onan MDKAE 20 | 20.0 kW | — | — | — | — |
| Cummins/Onan MDKAF 20 | 20.0 kW | — | — | — | — |
| Magnum MLG20ICAN | 20.0 kW | 1 | 68.0 dBA | 660.0 kg | 212.0 L |
| Cummins/Onan DSKBA | 20.0 kW | — | — | 568.0 kg | — |
| Generac SD020NA | 20.0 kW | 3 | — | 437.0 kg | — |
| Cummins/Onan MDKAE | 20.0 kW | Single/Three | — | 365.2 kg | — |
| Cummins/Onan 20QSA4 | 20.0 kW | — | — | — | — |
| Cummins/Onan 20QSA | 20.0 kW | — | — | — | — |
| Cummins/Onan 20.0 DL6 | 20.0 kW | — | — | — | — |
| SDMO T20UC | 20.0 kW | 3 | 67.0 dBA | 560.0 kg | — |
| Simson-Maxwell SKW20 T6-T4 | 20.0 kW | — | — | — | — |
| Stadco CP20 | 20.0 kW | 1 | 78.0 dBA | — | — |
| Olympian D20L2 | 20.0 kW | — | — | — | — |
| Olympian D20P1 | 20.0 kW | — | — | — | — |
| Olympian D20P2 | 20.0 kW | — | — | — | — |
| SDMO J20U | 20.0 kW | 1 | 78.0 dBA | 750.0 kg | 100.0 L |
| Kubota 4318 | 20.6 kW | 3/4,3/4 | 82.0 dBA | 380.0 kg | 79.0 L |
| Kohler 21EKOZD | 21.0 kW | 1 | — | 422.0 kg | — |
| Kohler 20.5EFKOZD | 21.0 kW | 1 | — | 431.0 kg | — |
| Lister Petter GS20DE-LN | 21.3 kW | — | 75.8 dBA | — | — |
| Hipower HRIW-25 T4F | 22.0 kW | 1,3 | 63.0 dBA | — | 312.3 L |
| AKSA AD22 | 22.0 kW | — | — | 600.0 kg | 100.0 L |
| Cummins/Onan C28D5 | 22.0 kW | 3-phase | — | 1415.0 kg | 150.0 L |
| Westquip WQ25LT | 22.0 kW | 3 | — | 1315.0 kg | 250.0 L |
| kWiet Power DGK70F | 22.0 kW | Single- and three-phase | 58.0 dBA | 625.0 kg | — |
| IEL MDG22 | 22.0 kW | — | — | — | 110.0 L |
| Cummins/Onan BCC 28-50 E3A | 22.4 kW | 3 | — | — | 100.0 L |
| Lister Petter GS20DE-LM | 22.4 kW | — | 75.8 dBA | — | — |
| Atlas Copco PTS 800 | 22.5 kW | 3 | 72.0 dBA | 4990.0 kg | 400.0 L |
| Cummins/Onan 22.5MDKBT | 22.5 kW | 1 | 67.0 dBA | 601.0 kg | — |
| Kohler 20REOZT | 23.0 kW | Single | 65.0 dBA | 1724.0 kg | — |
| Kohler 23EOZD | 23.0 kW | — | — | — | — |
| Mitsubishi 20REOZT | 23.0 kW | — | — | — | — |
| Isuzu ML23INKD | 23.0 kW | — | — | — | — |
| Simson-Maxwell SDAC20 | 23.8 kW | 3 | — | — | — |
| Kohler 24EKOZD | 24.0 kW | 1 | — | 431.0 kg | — |
| aurora AGi24Y-E | 24.0 kW | — | 76.0 dBA | 180.0 kg | 45.0 L |
| Kubota KJ-T300 | 24.0 kW | 3 | 73.0 dBA | 710.0 kg | 60.0 L |
| John Deere BCJD 30-50 | 24.0 kW | 3 | — | — | 100.0 L |
| Kohler K25 | 24.2 kW | — | 81.0 dBA | 510.0 kg | 66.5 L |
| Perkins 1100 | 24.2 kW | — | — | — | — |
| Magnum MLT 5150 | 24.7 kW | single | — | 977000.0 kg | 212.0 L |
Among 20–25 kW Diesel generators in this comparison, the kWiet Power DGK70F is quietest at 58.0 dBA.
Among 20–25 kW Diesel generators in this comparison, the aurora AGi24Y-E is lightest at 180.0 kg dry weight.
Among 20–25 kW Diesel generators in this comparison, the Magnum MMG25FHI has the largest fuel tank at 401.2 L.
Not every model reports every spec — blanks mean the source document didn't state that figure, not that the value is zero.