Onan Replacement 300-4155 Control Board
By Flight Systems

An exact replacement for Onan  300-4155, the 56-4155-00 control fits Microlite Model KY Spec A is built in the USA with top-quality materials. The module is environmentally sealed by encapsulation in automotive-grade urethane, is 100% repairable Features a two-year warranty. Our replacement circuit board features a hard plastic case improving its durability and longevity far beyond that of the original unit, which was protected only by a thin coating of rubber.