I have a very old electrolux canister vacuum that needs the cord winder mecanism with cord replaced. Where can I locate this part?

\015 This canister vacuum is at least more than 30-35 years old. The insulation on the electric cord has harden with age and has many, many cracks making it extremely dangerous. The vacuum still works and I would like to replace the winder assembly so it is usable. Can you advise?\015 – Electrolux Vacuums