HomeCompare45–50 kW Diesel

45–50 kW Diesel Generators Compared

28 45–50 kw diesel generator models side by side — power, phase, sound level, weight and fuel tank capacity, compiled from manufacturer specification sheets.

ModelStandbyPhaseSoundWeightFuel tank
Kohler 45EFOZDJ45.0 kW3934.0 kg
Kohler 45EFOZCJ45.0 kW3934.0 kg
MTU 4R0080 DS5545.0 kWthree phase62.0 dBA868.0 kg145.0 L
Yanmar LPI-Y-40kW45.0 kW31600.0 kg
Laborde Products LPI-Y-4545.0 kW3 Phase725.7 kg
Laborde Products 4TNV98T-ZGGM45.0 kW3 Phase725.7 kg
Cummins/Onan DYJ-9XR45.0 kW3
Cummins/Onan DYJ-15R45.0 kW3
Generac MMG45K45.0 kW416.0 L
Cummins/Onan DEF45.0 kW3985.2 kg
Olympian XQ45P245.0 kW
MTU 20V 400045.0 kW
MTU 12V 400045.0 kW
MTU 16V400045.0 kW
Westquip WQ40-STAT45.0 kW78.0 dBA646.0 kg355.0 L
FG Wilson P50-345.0 kW67.5 dBA810.0 kg145.0 L
Atlas Copco PTS 160045.7 kW386.0 dBA8565.0 kg600.0 L
Simson-Maxwell SKW30 T6-T346.3 kW3583.8 kg710.4 L
Caterpillar XQ60 Tier 4 Final47.5 kW3-phase,1-phase63.0 dBA
Kohler 48REOZK448.0 kW69.0 dBA1989.0 kg386.0 L
Generac RD04848.0 kWSingle70.0 dBA886.0 kg257.4 L
Generac MMG55DF448.0 kWthree phase68.0 dBA1499.0 kg379.0 L
Olympian GEP65-948.0 kW3874.0 kg219.0 L
Doosan G60-SIIIA48.0 kWSingle92.0 dBA1734.0 kg177.0 L
John Deere HJW 55 M648.0 kWL-N | L-L69.0 dBA645.0 kg145.0 L
Westquip WQ45T4Y48.0 kW646.0 kg355.0 L
Simson-Maxwell SDAC50 T6-T349.0 kW3829.5 kg508.8 L
Kohler KDI 3404 TCR49.3 kW394.0 kg

Common questions

Which 45–50 kW Diesel generator is quietest?

Among 45–50 kW Diesel generators in this comparison, the MTU 4R0080 DS55 is quietest at 62.0 dBA.

Which 45–50 kW Diesel generator is lightest?

Among 45–50 kW Diesel generators in this comparison, the Kohler KDI 3404 TCR is lightest at 394.0 kg dry weight.

Which 45–50 kW Diesel generator has the largest fuel tank?

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.