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Sierra 18-5966-1 Alternator$242.43
Sierra Marine 18-5966-1: Marine Alternator, 55 Amp, 12V, Internal Regulator, V-Belt, Black, Mercruiser, Each - Sierra Marine alternators are designed to OEM specifications. All models meet or exceed USCG and SAE J1171 safety requirements and are 100 percent load-tested for assured reliability. Order the replacement alternator recommended for your watercraft application.