12 Volt 63 Amp Alternator With Pulley John Deere Ford Case IH Farmall Massey63 Amp 12 Volt Alternator With Pulley. For sale is a brand new aftermarket 63 Amp 12 Volt Alternator w/Pulley. This alternator is used to convert 6 Volt systems to 12 volt. The 12 Volt Alternator is used to convert the 6 […]