Part: Honda CL350 / CB350 / CL360 / CB360 / CB400 / CB450 / CB500T Gas Cap Seal
Why You Need This: You might not have even realized that there was a seal there. It usually has more cracks and wrinkles than a plumbers convention. Finish the tank off right and protect the paint with a new seal. This gas cap seal fits a wide range of the late 60's and early 70's Honda CB and CL motorcycles see fitment chart below. In addition to those models it also fits the CB500F and CB550F.
Installation Tip: The seal is more than just a flat rubber ring, it is actually fits over the tank stopper like the rings of Saturn. Make sure to install the ring so that when the gas cap is closed, the thicker side of the ring faces the opening of the gas tank. Takes a little work to get it in place, be patient.