No part number but I did say what tank it has to be for. The right side fat bob is vented while the left isn't so on the kick stand it doesn't leak. So you want the one for the right tank not the left and with right handed threads since they make left handed threaded ones too.

Fits 83 and later XL,FXR,Dyna,Softail,& Roadking.

I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!