Order Includes: 1x Regulator Rectifier. Compatible with Yamaha models: SRV SR540 1983-1986, SS440 1980-1985. Part Numbers: 82F-81910-A0-00, 898-81910-12-00, 7XE-81910-00-00. We strongly suggest comparing the posted picture to the unit(s) that needs to be replaced..
