Cummins/Onan 4B3.9-G (Spec D, E) Engine
The Cummins/Onan 4B3.9-G (Spec D, E) is an engine. It powers generator sets from Cummins/Onan, including the 28DGBB* and 35DGBB*.
The Cummins/Onan 4B3.9-G (Spec D, E) is an engine. It powers generator sets from Cummins/Onan, including the 28DGBB* and 35DGBB*.