98056-54757 S/Plg (U14FSR-UB) - Overview. The 98056-54757 S/Plg (U14FSR-UB) is a critical component within Honda marine engine systems, responsible for igniting the fuel-air mixture to enable efficient engine starting and operation. Specifically designed for Honda Outboard Engines, this spark plug ensures reliable ignition performance, contributing to smooth engine functionality and overall power output. Manufactured to match Honda's factory specifications, it integrates seamlessly with existing