Diesel EngineEncyclopedia

Cummins

4B3.9-G12

B3.9 Series

In Production

Power Ratings

kWm = mechanical power · kWe = electrical power (kWm × gen. eff.) · kVA = kWe ÷ 0.8 power factor

50 Hz1500 RPM

kWmkWekVA
Prime Power272527
Standby Power303034

60 Hz1800 RPM

kWmkWekVA
Prime Power332830
Standby Power363538

Technical Specifications

BrandCummins
Model4B3.9-G12
SeriesB3.9 Series
ConfigurationInline 4
Cylinders4
Displacement3.9 L
Fuel TypeDiesel
Ignition TypeCompression Ignition
Cooling MethodLiquid-Cooled
Country of OriginChina

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