Quick view Mechman E Series Billet 370A alt - Fits 6/12 CS144 - Black finish Now: $629.00 MSRP: $729.00 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… Add to Cart The item has been added Add To Compare