NEW ALTERNATOR FITS RIGMASTER GENERATOR APU PERKINS ENGINE 101211-8810 18504-6470 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: 60 Amps Fan: Internal Regulator: Internal Pulley: V Belt Grooves: 1 Source: Aftermarket