The grommet for the "other side" (for PCV) is readily available:

http://www.oreillyauto.com/site/c/de...2182&ppt=C0023

Where can I source the "air breather" side in the ~$5 range?

OPGI has them for $22:

https://www.opgi.com/cutlass/C240750/

OPGI also sells the PCV-style, also for $22...

 

https://www.ebay.com/sch/i.html?_fro...ommet&_sacat=0

 

I am looking for something I can buy locally - like on a retail card, like the O'Reilly link I provided.

Fusick is better @ "only" $9.50: http://www.fusickautomotiveproducts....p?number=VC104

Supercars Unlimited is similar: http://www.supercarsunlimited.com/Ai...ubes-i371.aspx

This is more like the info that I was looking for:

https://classicoldsmobile.com/forums...-napa-pns.html

The RockAuto P/N mentioned is "Out of Stock". The NAPA part mentioned may or may not actually be available in this universe:

https://www.napaonline.com/p/NDP6301074

 

Also, be aware that there are two versions, large and small hole. Be sure you get the one you need.

 

that would be easier to countenance if more information was available about the quality/manufacturer of the seemingly identical parts being offered for sale

like the guy who said he bought some grommets from Fusick that didn't last a day - that must mean there is another manufacturer with higher quality, right? who is that manufacturer? what retail brand is that manufacturer available under?

i think its insane that an outfit like O'Reilly carries grommets for one side - but not the other