ESC140 is a high quality replacement stator for the Yamaha YZ250 from 1990-1995 and for the WR250 between 1990 and 1997. Our ESC140 comes on an aluminum baseplate with high quality OEM connectors, rubber seals and ignition pickup coil, making it a direct plug-in for the Yamaha OEM stator. It is wound with the highest specification of copper wire which provides for high efficiency and a lower winding temperature. These changes drastically improve reliability compared to the OEM stator. Like all stators manufactured by ElectroSport our ESC140 is also covered with a full one year warranty