Feature:Dimensions: 82mm Long x 30mm tall x 80mm wideMounting Hole spacing - 66mm (measured center to center)Interchange Part NumberRectifier: 31700-333-008Regulator: 31400-300-035CompatibilityPlease make sure the interchange part number matches the part you are replacing.Please check our photos and make sure the part shown looks identical to your stock one.Fits Honda:CB350F - 1972-1974CB400F Super Sport - 1975-1977CB500K - 1971-1973CB550F Super Sport - 1975-1977CB550K - 1974-1978CB750F Super Sport - 1975-1978CB750K - 1969-1978Note:The white 5 wire connector plugs into the stock wiring harness, replacing the old rectifier. The 3 male spade connectors plug in where the old regulator connected. Corroded / loose / damaged wiring is a very common cause for charging system issues, make sure all connections are clean and secure.This unit will not just bolt on where the old rectifier was, you must find a place to secure it after removing the stock regulator and rectifier. The body of the unit does not need to be grounded.You must have a fully charged battery in perfect working order before installing a new regulator rectifier.includes:1 x Regulator Rectifier Voltage