Description: 100% Brand New Items, Never Used Or Installed Professional Installation is Highly Recommended No Instruction Included Alternator New 120 Amp upgrade replacement alternator for GM 10SI applications. This aluminum alternator has an internal voltage regulator. It can be wired with a one-wire or three-wire set-up. 3 wire hookup with a main post for battery connection and flat blade terminals for field wire and voltage sensing wire. Comes with a one groove bolt on V-belt pulley. .
