03 yukon rear windshield wiper motor replacement

[andydrew39219]

Long story short, I replaced my rear windshield wiper motor. It works now. But I did not realize it doesn't come with the plastic nut that threads onto the outside of the rear access. I cannot seem to find a part number to order it. Can anyone lead me in the right direction?

 

[Shadow711]

I'm trying to picture what nut you mean. I shaved my rear wiper and have all the part still, I may have what you need laying around...