Early Kenmore Power mate

[davidmichaelraw]

Hello, I have an early 70's green Kenmore Magicord canister vac. The power nozzle is in need of a new motor cooling fan. Would appreciate any assistance, or direction on where I may find one. The pulley is not grooved like the newer ones!
Thank you for any info shared.
This is my machine:

 

[ds3760]

Do you know if there are any part numbers or markings on the fan that you are looking for? Would you be able to upload a picture?