NEW REGULATOR FITS MERCRUISER STERNDRIVE ENGINE 260 3.0 LX 320 350 370 4.3L 4.3LX 78402 78403 78403A1 78403A2 18-5951 18-5957 60109 5-193 5-214 5-240 8RG2015 8RG2016 8RG2018 8RG2027 8RG2046 5193