NEW Premium Quality Marine Replacement Alternator with 3 Wire System Complies with SAEJ1171 and ISO standards for Ignition Protection Front and Rear Arrestor Screens Designed for Sustained Hi-Rev Operation Internally Regulated Full One Year Warranty Meets or Exceeds exact OEM Specifications 65-amp MARINE Alternator Replacement for Mando / Motorola Marine Hi Speed Sealed Bearings Used on Mercruiser, OMC, Volvo Penta Marine APPLICATIONS Mercruiser Engine - Marine 198 MIE GM 5.0L - 305ci - 8cyl 1977 228 MIE GM 5.0L - 305ci - 8cyl 1977-1980 255 MIE GM 5.7L - 350ci - 8cyl 1975-1980 330 MIE GM 7.4L - 454ci - 8cyl 1977-1980 Mercruiser Stern Drive 120 GM 2.5L - 153ci - 4cyl 1973-1982 140 GM 3.0L - 181ci - 4cyl 1973-1982 165 GM 4.1L - 250ci - 6cyl 1970-1982 228 GM 5.0L - 305ci - 8cyl 1977-1981 260 GM 5.7L - 350ci - 8cyl 1978-1981 330 GM 7.4L - 454ci - 8cyl 1977-1981 370 TRS GM 7.4L - 454ci - 8cyl 1978-1987 400 TRS (Cyclone) GM 7.4L - 454ci - 8cyl 1980-1986 440 TRS (Cyclone) GM 7.4L - 454ci - 8cyl 1983-1986 460 TRS (Cyclone) GM 7.5L - 482ci - 8cyl 1983-1986 898 GM 5.0L - 305ci - 8cyl 1977-1982 Replaces these numbers Delco: 1100186, 1102938, 1102939, 1103113, 1103114, 1103193, 1105064, 1105065, 1105078, 1105088, 1105097, Hyster: 3042505, 341675, Mercury Marine: 78402, 78403, 78403A1, 78403A2, 78477, 12700 Motorola: 10-224, 8MR2023F, 8MR2023FA, 8MR2024F OMC: 982364 Prestolite: 110-224, 110-292, 110-686, 20115005TBA 18-5951 18-5957 Notes: 2 inch Mounting Foot and top threaded ear. Comes with standard V groove single pulley Please be sure Battery is fully charged and all connections are clean and tight This is a very common problem in marine electrical systems. Corrosion, or bad connections will cause low voltage to the electrical components. Red Wire Connector is Sense or Live Connection Purple/Black Wire Connector is Switched Connection Includes Tab for Ground Wire Connection