We may have found other answers which could help you.
Click here for Vacuum Cleaner Suckneed diragram for a Eureka The Boss Pro?
How do I remove the canister motor 116.21514?
Eureka "boss" #5893 stops sucking after 10mins?
Eureka Model 4870 Motor Replacement?
Eureka Boss Smart Vac Thermal Cutoff ?
Older Eureka Boss Possilbe short?