cant find part needed

Take a look at grote.com or Peterson Lighting at pmlights.com and browse through their catalogs. Odds are there will be one there. And if you see what you want in shown in red click on it, likely one will be shown in amber too.

You might check here: Trekwood.

I have gone local and nothing. It is the round cover. Tried at camping world in a live chat and nothing.
Did have pics but changed phones and lost the pic. Will get a new pic.
Should be a very generic thing but no luck

Clearence lights are cheap. Go to any RV parts store and look. Replace the whole thing.

Need more info. Do you have a picture of what you are looking for?