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)
NoteBig Twin 07-later & 99-06 when Upgrading To Hydraulic Tensoiner.