Premium Replacement Inboard Alternator with Single Groove Pulley - 12V 55AReplacement alternator that will fit O.M.C. Cobra., Prestolite/Motorola, 12 Volt, 55 Amp, Internal regulator, Negative ground, 2-inch mounting foot, Single groove 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:BRP-OMC Alternator 983424BRP-OMC Alternator 984565BRP-OMC Alternator 985465BRP-OMC Alternator 985466BRP-OMC Alternator 986008BRP-OMC Alternator 988247BRP-OMC Alternator 3853853BRP-OMC Alternator 3854182BRP-OMC Alternator 3854809BRP-OMC Alternator 3857298BRP-OMC Alternator 3860769VOLVO Alternator 3850927-9VOLVO Alternator 3853853-4VOLVO Alternator 3854182-7VOLVO Alternator 3854809-5VOLVO Alternator 3857298VOLVO Alternator 3860173VOLVO Alternator 857298SIERRA Alternator 18-6260SIERRA Alternator 18-6842*ARCO Assurance 12-month part and labor warranty protection