Home Engine Systems Engine Parts Alternators Mercruiser 55 Amp Alternator (300-19439) EMP Mercruiser 55 Amp Alternator (300-19439) $254.99 Mercruiser 55 Amp Alternator (300-19439) quantity Add to cart Product Details Product Details Fits: 120-135 HP (3.0L), 150-155 HP (4.3L), 215-385 HP (5.7L – 7.4L) (1987-98). 12 volt, 55 amp. Single groove. Bi-directional. Replaces: Mercruiser 12449, 19685, 817119, 817119-1, -2; OMC 3854809, 3860769; Volvo 3853853-4, 3854809-5, 3850927-9.
