Haifeng Machinery

Baudouin 4M10G70/5 vs Isuzu 4JJ1X

The Baudouin 4M10G70/5 and Isuzu 4JJ1X are both diesel generator engines in a similar power class. Both are rated at roughly 71 kVA. Displacement is 4 L versus 2.999 L. The table below compares their full specifications side by side.

SpecificationBaudouin 4M10G70/5Isuzu 4JJ1X
Headline rating70 kVA71 kVA
Standby (50 Hz)56 kWe56.4 kWe
Prime (50 Hz)50 kWe51.3 kWe
Standby (60 Hz)63 kWe70.3 kWe
Prime (60 Hz)57 kWe63.9 kWe
Displacement4 L2.999 L
ConfigurationL4L4
Cylinders44
Rated speed1,500 / 1,800 RPM1,500 / 1,800 RPM
FuelDieselDiesel
CoolingLiquid-CooledLiquid-Cooled
EmissionsUnregulatedU.S. EPA Final Tier 4
Dry weight
OriginFranceJapan

Choosing between Baudouin 4M10G70/5 and Isuzu 4JJ1X

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 Isuzu 4JJ1X has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.