OEM mirror part

[casualkid]

Noticed this was off after driving home the other day. Anyone know where I can get/order this little part? I don’t need replacement mirrors. Thanks.

 

[cruiserdan]

The missing piece is not serviced separately. You buy a mirror to get it.

 

[3_puppies]

might post up in the classifieds a wanted thread, someone may have a broken mirror with that part available.
I'm thinking that either side would work for you.