ALTERNATOR FITS FORD TRACTOR 3610 3900 3910 4100 4110 4600 D5NN-10300-A 8AL2056K D5NN-A 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