Machined steel, stock replacement roller chain drive sprockets fit 07-17 Twin Cam engines as direct replacements and work on early 99-06 engines when upgrading to the hydraulic cam chain tensioners using the roller chain Made in the U.S.A. .
I used this part in my 117 Milwaukee 8 build. The factory timing sprocket on the Milwaukee 8 has a lot of rotational slop in it for ease of installation on the assembly line. Correct cam timing is hard to pin point with the factory gear. The feuling 1091 gear fits the crankshaft tight so accurate cam timing can be achieved.