ESC387 is a high quality replacement stator for the Yamaha YZ450 between the years 2006 and 2009. ElectroSport uses high quality lamination cores and winds these with the highest quality copper winding wire that is available. The temperature rating of these windings is much higher than the OEM stator offers which increases reliability dramatically. ESC387 is supplied as the OEM Yamaha stator on a base plate with high quality rubber seal and connectors, ready to plug in. Like all other stators manufactured by ElectroSport this ESC387 stator also comes with a full one year warranty.