DOP12-755-111-S Kohler Voltage Regulator. This is an OEM part, Used on commercial walk behind mowers with Kohler engine electric clutch, rope starter and no battery. Used on CV11, CV12.5, CV13, CV14, CV15 & CV18 model engines. Replaces # 12-403-01, 1240301, 12 403 01, 12 755 111-S, 12755111, 12-755-111.