Number: 31750-Z0A-821 R2021.23 Description: Motorcycle 12v Voltage Regulator Rectifier Input Voltage: DC 12V Prevent over-charging and improve charging capability, Easy to install, no installation instruction included with heat sink fins for better cooling Color: Silver Gray Material: metal Fitment: for Honda GCV520U CEE9 for Honda GCV530U PEE9 for Honda GXV390RT1 DCST Check the AC output of the stator. Replace any burned or corroded connectors on stator and regulator/rectifier Check and repair any melted wiring. Use hi-temp dielectric grease on all connectors. Package Contents: 1x Regulator Rectifier Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.