I might first to to the parts catalog here:
https://catalog3d.winnebagoind.com/menu/Parts.htm
Choose the correct year, make, model and floor plan then drop down to about page 54-55 in the electrical parts section to look at the diagram for the exact one of the right color, etc.
This will give you the part number!
Then I do a search for that part number and often find it at different places, so I can choose the best price/shipping that fits what I'm wanting.
I did a search for one of the lights and note a "dealer service bulletin"?
That bulletin may be something to know? Possible recall info or maybe nothing?
Once you have the right part number, I shop online for the best choices before talking to and seller. I go shopping rather than going to some of the places who are so proud of what they sell!
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Richard
Why no RV year, make and floorplan on MY signature as we suggest for others?
I currently DO NOT have one!