25 Tooth Transmission Sprocket. Fits 4spd Big Twin 1936-1979.

Features & Benefits:-

* CNC machined from high grade steel.

* Maximum spline-to-shaft contact.

* Heat-treated for long life and extended wear.

* Nickel plated for corrosion & wear resistance

* Manufactured in USA.

* Sprocket includes a late style lock plate (note: lock plate will not fit Big Twins 1965 thru 1969, lock plate bolts will hit outer case)

* Lock plate bolts not included. 1/4"-20 pitch x 1/4" long Allen Head are needed.

Use with O-Ring Chain # BC-19-7286 & Clip Link # BC-19-7303