Haifeng Machinery

Weichai WP4.1D84E310 vs Yunnei DEF47CZSB5

The Weichai WP4.1D84E310 and Yunnei DEF47CZSB5 are both diesel generator engines in a similar power class. Both are rated at roughly 95 kVA. Displacement is 4.1 L versus 4.7 L. The table below compares their full specifications side by side.

SpecificationWeichai WP4.1D84E310Yunnei DEF47CZSB5
Headline rating95 kVA95 kVA
Standby (50 Hz)76 kWe
Prime (50 Hz)68 kWe
Standby (60 Hz)
Prime (60 Hz)76 kWe
Displacement4.1 L4.7 L
ConfigurationL4L4
Cylinders44
Rated speed1,500 RPM1,800 RPM
FuelDieselDiesel
CoolingLiquid-CooledLiquid-Cooled
EmissionsChina National Stage III / UnregulatedEuro Stage V
Dry weight
OriginChinaChina

Choosing between Weichai WP4.1D84E310 and Yunnei DEF47CZSB5

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.