DB Electrical ADR0317 Marine Alternator For Mercruiser 3.0  4.0 5.0 6.0 7.0 8.0 9.0L 1998 - On, Mercruiser Engine 9.0 Model 900SC 99 00 01 02 and 3.0L 3.0LX 1999-2015 100% New aftermarket unit built to meet OEM specifications 1-year warranty protects you after your purchase Factory direct pricing with no middleman markup delivers exceptional value