Replacement Generator Control Board for ONAN® 300-3056, 300-3687, 300-3950
Direct replacement for the main control board used in several models of Onan Emerald and Marquis Series Gen Sets.
Features include improved circuit and harness design, heavy duty relays, added ignition circuit voltage protection and heavy conformal coating (to protect against corrosion - a major enemy of any RV generator control).
It is built in the USA and backed by a 2-year Warranty.
This board replaces the following ONAN part numbers: 300-3056, 300-3056-01, 300-3687, 300-3687-01, 300-3950
These control boards were used in the following Onan Emerald RV Gen Set Models:
• BGE: Spec F,G
• BGEL: Spec E,F,G
• NHE: Spec D,E,F,G
• NHEL: Spec D,E,G
They were also used in the following Marquis Gen Set Models:
• BGM: Spec A
• NHM: Spec A