NEW ALTERNATOR FORD TRACTOR 545C 550 A62 A64 A66 D5NN-BA 110-497 D5NN-10300-BA 100% NEW and Made with the Highest Quality Components Available Full One Year Warranty Computer tested for consistent Quality and unsurpassed reliability Alternator - Voltage: 12V Amperage: 51 Amps Pulley: V Belt Grooves: 1 Source: Aftermarket