Rick's Motorsport Electrics Regulator / Rectifier Yamaha Revitalize your vehicle's electrical system with Rick's Motorsport Electrics Regulator/Rectifier. These brand-new parts come with a one-year replacement warranty for peace of mind. Most come with factory connectors, installation is a breeze - simply unplug your old part and plug in the Rick's unit. Features: Built to OEM specifications 1-year warranty High-quality cost effective replacement for OEM parts Most models with OEM plug-and-play style plug end Replacement for Yamaha OE# 4Kb-81960-02-00 & 4Kb-81960-01-00 Note: Image is for reference only.