We may have found other answers which could help you.
Click here for Vacuum Cleaner Belt
Eureka 4870 vacuum?
How to fix idler clamp assembly (hardwood/carpet switch) on Eureka SmartVac?
Older Eureka Boss Possilbe short?
How do I remove the canister motor 116.21514?
Eureka Model 4870 Motor Replacement?
need diragram for a Eureka The Boss Pro?