1、OE Number: The referencing OE number of this ignition switch are 393301, 388173, 390129, 390133, which is molded and designed depend on the original data. 2、Wide Adaptability: The ignition starter switch is widely compatible with most OMC inboard and outboard powered boats for motor control. 3、Good Replacement: Push to choke ignition switch is used to replace and refurbish the original ignition switch to improve the ignition performance. 4、Premium Material: Made of premium quality ABS and metal material, good water resistance, professional manufacturing, high reliability. 5、Installation: Small and light in weight, compact structure, easy to install and use, direct replacement, push to choke with no wire splicing.