Quick view Mechman 320 Amp 320 Amp Alternator for Left Mount CS-130 Now: $519.00 MSRP: $619.00 Was: Installation Notes: This unit comes equipped with a smaller 1.75 inch diameter alternator pulley, and will require a slightly shorter drive belt for proper belt tension. Not recommended for sustained use above 5,000 RPM engi… Choose Options Add To Compare