Premium Replacement Alternator with 50mm Multi-Groove PulleyReplacement alternator that will fit Mercruiser 4.3L-6.2L, 12 Volt, 70 AMP, Internal Fan, 50-mm multi-groove serpentine pulley included.Features:All alternators are engineered for performance and reliabilityAll alternators are engineered and manufactured with precision and qualityAll alternators must meet or exceed OEM performance before being boxedReplaces:DELCO Alternator 19020611DELCO Alternator 19020612MERCURY Alternator 863077TPLEASURECRAFT Alternator RA097007SIERRA Alternator Alternator 18-6298PROTORQUE Alternator PH300-0035MPPARTS Alternator ADR0298*ARCO Assurance 12-month part and labor warranty protection