Haifeng Machinery

Cummins QSK50G14 vs Weichai 16M33D1580E310

The Cummins QSK50G14 and Weichai 16M33D1580E310 are both diesel generator engines in a similar power class. Both are rated at roughly 1,769 kVA. Displacement is 50 L versus 52.8 L. The table below compares their full specifications side by side.

SpecificationCummins QSK50G14Weichai 16M33D1580E310
Headline rating1,760 kVA1,778 kVA
Standby (50 Hz)1,408 kWe1,422 kWe
Prime (50 Hz)1,300 kWe1,287 kWe
Standby (60 Hz)1,512 kWe
Prime (60 Hz)1,377 kWe
Displacement50 L52.8 L
ConfigurationV16V16
Cylinders1616
Rated speed1,500 RPM1,500 / 1,800 RPM
FuelDieselDiesel
CoolingLiquid-CooledLiquid-Cooled
EmissionsChina III / U.S. EPA Tier 2China National Stage III / Unregulated
Dry weight
OriginUnited KingdomChina

Choosing between Cummins QSK50G14 and Weichai 16M33D1580E310

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 Weichai 16M33D1580E310 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.