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John Deere 4045HG551 vs SDEC 4ZTAA4.1-G22

The John Deere 4045HG551 and SDEC 4ZTAA4.1-G22 are both diesel generator engines in a similar power class. Both are rated at roughly 91 kVA. Displacement is 4.5 L versus 4.1 L. The table below compares their full specifications side by side.

SpecificationJohn Deere 4045HG551SDEC 4ZTAA4.1-G22
Headline rating91 kVA91 kVA
Standby (50 Hz)73 kWe73 kWe
Prime (50 Hz)66 kWe67 kWe
Standby (60 Hz)75 kWe79 kWe
Prime (60 Hz)68 kWe72 kWe
Displacement4.5 L4.1 L
ConfigurationL4L4
Cylinders44
Rated speed1,500 / 1,800 RPM1,500 / 1,800 RPM
FuelDieselDiesel
CoolingLiquid-CooledLiquid-Cooled
EmissionsEuro Stage V / U.S. EPA Final Tier 4China National Stage II / Unregulated
Dry weight——
OriginUnited StatesChina
John Deere 4045HG551 full specs →SDEC 4ZTAA4.1-G22 full specs →

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