Haifeng Machinery

John Deere 4045HFG20 vs Yunnei DEF47CZDA5

The John Deere 4045HFG20 and Yunnei DEF47CZDA5 are both diesel generator engines in a similar power class. Both are rated at roughly 135 kVA. Displacement is 4.5 L versus 4.7 L. The table below compares their full specifications side by side.

SpecificationJohn Deere 4045HFG20Yunnei DEF47CZDA5
Headline rating134 kVA135 kVA
Standby (50 Hz)107 kWe
Prime (50 Hz)97 kWe108 kWe
Standby (60 Hz)116 kWe
Prime (60 Hz)105 kWe
Displacement4.5 L4.7 L
ConfigurationL4L4
Cylinders44
Rated speed1,500 / 1,800 RPM1,500 RPM
FuelDieselDiesel
CoolingLiquid-CooledLiquid-Cooled
EmissionsUnregulatedEuro Stage V
Dry weight
OriginUnited StatesChina

Choosing between John Deere 4045HFG20 and Yunnei DEF47CZDA5

Use this comparison as an engineering shortlist, then confirm the complete generator package against load profile, voltage, 50/60 Hz frequency, duty class, emissions rules, cooling margin, altitude, ambient temperature, enclosure design, controller features, and alternator sizing. The Yunnei DEF47CZDA5 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.