Hello Marshal,
If your RV is a THOR there is a owner portal on their website where you can order parts specific to your RV. I was able to order a OEM range vent for my THOR Majestic directly from them. Once you get setup on their site and supply the vin to your RV they can provide you spec sheets, manuals and parts for your RV.
Here is the link I used.
https://www.thormotorcoach.com/owners/need-parts-help/
They were very friendly and reached out to me directly that the part they had was the exact part I needed. May be worth a shot for the part you are looking for.
Hope this helps!
