Direct replacement to your old unit. Plug-and-play, direct fit, easy installation. This latest rectifier-regulator, has a ground lug and built-in over-voltage protection that is self-resetting. The over-voltage protection prevents possible damage to other electrical components if an engine is jump-started. All products shipped are tested. Installation instruction is not included. Condition: Aftermarket Type: Regulator Power Source: Gas Voltage: 12V Power Capability: 15 Amp Horsepower: 10 HP Terminals: B+ - AC - AC Interchange Part Number: 41 403 06C-33 41 403 06-S 41 403 22-S Fitment: There different type of regulator of those part number, please make sure this shape of regulator is what you want!!! For Kohler K181 K241 K301 K321 K482 K532 Fit for Kohler Engine KB46 Fit for J & D Lawn Tractor. KB46 Please make sure this fits by model, type and part number of your engine. Colour:Silver&Gray Material:Metal Package Contents: 1 x Regulator 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.