3rd/4th pressure switch leaking

[fast400]

While doing a pressure check, I noticed some trans fluid blowby around the connector part of the pressure switch. As a precaution I'm going to replace it. Seems there are several part numbers. I went with AC Delco
8683502

Is this the right part number? There's so many switches...just spent 2hrs searching.

 

[Ttype6]

This is the correct part.

 

[fast400]

Thanks!