1,Compatibility: This boat motor CDI unit assy is compatible with 20HP 4 stroke outboard engines, ensuring a perfect match with the original mechanical ignition system. 2,High Performance Ignition: With a reliable ignition system, the outboard motor CDI unit assembly delivers powerful and consistent power output. It ensures reliable start ups. 3,Reliable Plastic Material: This CDI unit is made of premium plastic to guarantee long lifespan, crafted with accuracy to ensure optimal functionality and durability. 4,Stable Power Support: By optimizing ignition efficiency, this CDI unit enhances the power output of the boat's outboard engine, providing stable power support for your navigation. 5,Convenient Installation: The boat motor CDI unit is easy to install and replace, simply remove old parts and put this new one in its place, convenient for maintenance. Item Type: Boat CDI Unit Assembly Material: Plastic Weight: Approx. 131g or 4.6oz 1 x CDI Unit Assembly Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.