Cable Rewind Assy to fit ALL DC05 models. Complete with mains flex, fitted plug and auto-rewind spool.
Genuine Dyson Replacement DC40 Vacuum Cleaner Yoke Cable Assembly 923188-01
Your DC40 vacuum cleaner has a problem with the wire breaking in the ball, this will result in no power to the hoovers cleaning head. If you just re join the wires after you have found the break this will only be a temporary repair because it will fail again.
Correct way to repair is by using this yoke cable assembly.