NEW STARTER FITS YAMAHA ATV YFM66 YFM660 YFM45FG GRIZZLY 660 4WV-81800-00-00 4WV-81890-00-00, 5KM-81890-00-00 4WV818000000 4WV818900000 5KM818900000 100% NEW and Made with the Highest Quality Components Available Full One Year Warranty Computer tested for consistent Quality and unsurpassed reliability Starter - Voltage: 12V Rotation: Counterclockwise Teeth On Drive / Splines: 9 Source: Aftermarket