This starter solenoid relay is a high-quality aftermarket replacement compatible with Polaris ATV Sport 400 1994 to 1999. It controls the starting circuit connection to ensure fast and stable engine cranking. Built with premium raw materials and fully sealed housing, it withstands mud, humidity, high temperature and strong vibration in harsh outdoor environments. It perfectly fixes common issues like intermittent starting, relay clicking and startup failure, serving as a reliable spare part for ATV daily repair and maintenance.