The OEM Kohler MDI Module Conversion Kit 25-707-03S is a high-quality ignition module designed specifically for Kohler engines models CH20, CH23, and CH640. This conversion kit includes 1 module and is part of the MDI Module Conversion Kit series, providing reliable performance and efficiency. It is important to note that this product carries a California Prop 65 warning, indicating that it may contain chemicals that could be harmful if not handled properly. With the trusted brand of Kohler and the specific compatibility with these engine models, this conversion kit is a valuable addition for maintaining and repairing lawn mowers and other outdoor power equipment.