Feuling 1091 Crankshaft Cam Chain Drive Sprocket For M8 & Twin Cam 06-21

FEULING machined steel, stock replacement roller chain drive sprockets fit 07-17 Twin Cam engines as direct replacements also used on early 99-06 engines when converting from spring tensioners to the hydraulic cam chain tensioners using the roller chain. FEULING crank sprockets are designed with a tighter tolerance on the ID for better fit to the pinionshaft which aids in eliminating cam timing variance due to poor crank sprocket fit. Our testing has shown as much as 4 degree timing variance with the loose fit factory sprockets. 17 tooth crankshaft sprocket (OEM # 25673-06) Fits: 2007 - 2017 Twin cam engines, including 2006 Dyna Conversion camshafts when upgrading to hydraulic tensioner setup on 99-06 engines Milwaukee Eight engines 17-21 FITS: T/C 07-17 Includes 06 Dyna models, M-Eight 17-22, + Hydraulic Tensioner conversion kits for T/C 99-06