530419 Jackshaft kit, starter motor for 66t ring gear

When you are upgrading your starting system to a 66-tooth ring gear, you need a specific jackshaft to match. This MCS kit features a 9-tooth pinion gear designed specifically for conversion to a 66-tooth starter ring gear setup. It includes all the parts required between the OEM-style starter motor and the new ring gear. This kit fits 1994 to 2006 Big Twin models, with the exception of the 2006 Dyna. Converting to a 66-tooth gear is a common way to improve starting reliability on high-compression engines, and this jackshaft kit makes that transition possible. It is a direct replacement for OEM part number 530419. Sold as a kit, it provides a professional-grade solution for your high-performance starting needs.