Honda 17910-733-013 Cable Throttle.
Fits the following:
F401K2 A - FZBL 1000001-1099999 - HANDLEBAR,
F401K2 A2 - FZBL 1000001-1099999 - HANDLEBAR,
F401K2 AC - FZBL 1000001-1059999 - HANDLEBAR,
F401K2 AC/A - FZBL 1060001-9999999 - HANDLEBAR,
F401K2 AC2 - FZBL 1000001-1099999 - HANDLEBAR,
F501K2 A1 - FZAZ 1000001-1099999 - HANDLEBAR,
F501K2 A2 - FZAZ 1000001-1099999 - HANDLEBAR,
F501K2 AC1 - FZAZ 1000001-1049999 - HANDLEBAR,
F501K2 AC1/A - FZAZ 1050001-1053188 - HANDLEBAR,
F501K2 AC1/B - FZAZ 1053189-1199999 - HANDLEBAR,
F501K2 AC2 - FZAZ 1000001-1099999 - HANDLEBAR,
FC600 A - FAMJ 1000001-9999999 - HANDLEBAR,
FC600 A - FAMJ 1000001-9999999 - HANDLEBAR,
FC600 AC - FAMJ 1000001-9999999 - HANDLEBAR,
FC600 AC - FAMJ 1000001-9999999 - HANDLEBAR,
FC600 AN - FAMJ 1000001-9999999 - HANDLEBAR,
FC600 AN - FAMJ 1000001-9999999 - HANDLEBAR,
FC600K1 A - FAMJ 1100001-9999999 - HANDLEBAR,
FC600K1 A - FAMJ 1100001-9999999 - HANDLEBAR.
This is a OEM Honda part.
Thanks for looking!