New Alternator Replacement SAEJ1171 For Mercruiser Volvo Penta OMC 5.7 4.3 Ski & Stern AC155616, 807652, 807652T, 20130179, 3857813, AMN0010, 40046005, 40046005R, 40046024SPECIFICATIONS: 55 Amp 12 Volt, Bi directional, 6 Groove Pulley DESIGN: IR EF VOLTAGE: 12 AMPERAGE: 55 ROTATION: BI PULLEY CLASS: S6 NOTE 1: SAE J1171 Marine Certified NOTE 2: Red lead Battery Sense NOTE 3: Purple or Black lead Ignition FEATURE 1: 100% Top rated COMPATIBLE WITH or REPLACEMENT FOR MERCRUISER: Model 5. 7LX (4 BBL) 97 97 Model 5. 7L Ski (Gen +) multiple years Model 5. 7L MIE multiple years Model 5. 7L EFI (Gen +) multiple years Model 5.