GENUINE OEM KOHLER PART # 25 403 23-S; REGULATOR/RECTIFIER. PART # 25 403 23-S. We are a Toro Master Service Dealer.Kohler Expert Dealer and a. Briggs & Stratton Diamond Dealer. Listing and template services provided by inkFrog. This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Lawn Mowers, Parts & Accessories\Lawn Mower Parts". The seller is "outdoorpowerequipment" and is located in this country: US. This item can be shipped to United States.