Description:

New Aftermarket Part (Not Rebuilt/Refurbished/Repurposed). Specs: Alternator, Voltage: 12, Amps: 50, Regulator Clock: 3:00, Fan Location: Internal, Regulator Location: Internal, B+ Terminal: M6x1.00, Polarity: Negative, Pulley Grooves: 1, Pulley Type: Solid. Replaces OEM Part Numbers: Mercury Marine: 821663, 821663-1, 821663-A1, Nippondenso: 101211-3020, 101211-3021, Sierra Marine: 18-6449.