Made of metal, this regulator rectifier is durable and reliable, providing excellent performances for your motorcycles engine. Upgrade your motorcycles electrical system with this regulator rectifier, and experience enhanced power and efficiency like never before. Fit for Yanmar RS5121 Manufacturer Part Number:119653-7771011 119640-77711 This regulator rectifier will ensure a smooth and safe ride every time., Manufacturer: Woedpez