Haifeng Machinery

Cummins B6.7G18 vs Hyundai DP086CAK

The Cummins B6.7G18 and Hyundai DP086CAK are both diesel generator engines in a similar power class. Both are rated at roughly 237 kVA. Displacement is 6.7 L versus 7.5 L. The table below compares their full specifications side by side.

SpecificationCummins B6.7G18Hyundai DP086CAK
Headline rating235 kVA239 kVA
Standby (50 Hz)188 kWe191 kWe
Prime (50 Hz)172 kWe173 kWe
Standby (60 Hz)205 kWe209 kWe
Prime (60 Hz)188 kWe190 kWe
Displacement6.7 L7.5 L
ConfigurationL6L6
Cylinders66
Rated speed1,500 / 1,800 RPM1,500 / 1,800 RPM
FuelDieselDiesel
CoolingLiquid-CooledLiquid-Cooled
EmissionsU.S. EPA Final Tier 4 / EU Stage VU.S. EPA Tier 3
Dry weight
OriginUnited States / United KingdomSouth Korea

Choosing between Cummins B6.7G18 and Hyundai DP086CAK

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 Hyundai DP086CAK has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.