Motorcycle Starter Relay compatible with Doo Jet-SKI Boats models including CHALLENGER, EXPLORER, ISLANDIA, SPEEDSTER, SPORTSTER, and UTOPIA.This starter relay is designed to engine startup performance.It connects the to the starter motor when the ignition is activated, supporting proper electrical function within the starting system.The unit is built for and consistent in marine environments.Installation is straightforward, replacing the existing relay without modification.Designed to meet specifications for fit and function.Compatibility Disclaimer: This is an part.Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.