Home Engine Systems Engine Parts Alternators Mercruiser 7SI/70 Amp Alternator (300-91618) EMP Mercruiser 7SI/70 Amp Alternator (300-91618) $237.99 Mercruiser 7SI/70 Amp Alternator (300-91618) quantity Add to cart Product Details Product Details Fits: Mercruiser 4.3L (V6) and 5.0L – 8.2L (V8). 7SI/70 amp. Hinge mount, 2.44″ diameter serpentine pulley. Replaces: Mercruiser 862031.
