cant find part needed

Auto parts stores and RV parts often have little overlap. The one exception might be a really big truck stop.

I do not know about others, but I would be trying to match the rest of the lights.

Do a search for Clearance lights on WalMart, I didn't see the Lens, but there's no shortage of the lights.

Replace the light.
I bought an older trailer with faded lenses. Even the standard oblong light lenses were not available in any catalogue I could find. I contacted the manuf and they said they were wholesale only. I convinced them to sell me the lenses so I would not have to replace every light on my rig.

Try Colaw RV Salvage

Try any auto parts store.

Thanks all. trailer is in storage but will get needed info this week

Good point what BUD says... These are regulated by DOT as safety lights and MUST be approved type lens which have a DOT NUMBER stamped on them. If you search AMAZON for the stamped-on DOT number you should find exact lens right away...

Roy Ken

Look closely at another lens. Locate the numbers and post them