Haifeng Machinery

Sida Power 4FWZL vs Weichai WP4.1D84E310

The Sida Power 4FWZL and Weichai WP4.1D84E310 are both diesel generator engines in a similar power class. Both are rated at roughly 95 kVA. Displacement is 3.6 L versus 4.1 L. The table below compares their full specifications side by side.

SpecificationSida Power 4FWZLWeichai WP4.1D84E310
Headline rating95 kVA95 kVA
Standby (50 Hz)76 kWe76 kWe
Prime (50 Hz)70 kWe68 kWe
Standby (60 Hz)90 kWe—
Prime (60 Hz)80 kWe—
Displacement3.6 L4.1 L
ConfigurationL4L4
Cylinders44
Rated speed1,500 / 1,800 RPM1,500 RPM
FuelDieselDiesel
CoolingLiquid-CooledLiquid-Cooled
EmissionsApplication-dependentChina National Stage III / Unregulated
Dry weight370 kg—
OriginChinaChina

Choosing between Sida Power 4FWZL and Weichai WP4.1D84E310

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.