NEW STARTER SOLENOID FITS YAMAHA ATV YFM400 YFM450 TFM660 YXR450 YXR660 31800-21E20 4SV-81940-00-00 4SV-81940-12-00 100% NEW and Made with the Highest Quality Components Available Full One Year Warranty Computer tested for consistent Quality and unsurpassed reliability Solenoid - Voltage: 12V Source: Aftermarket