If you need a new connector, pigtail, or repair harness for your GM vehicle, you can check this official listing from AC Delco.
http://www.acdelcotechconnect.com/pi...s/gm/pigtails/
It is arranged by number of "cavities" or "pins". So, determined the number of cavities in your connector, then scroll down until you find that grouping, then match up your connector with the pictures shown. Both AC Delco and GM part numbers are shown, so you can search both part numbers on the internet until you find a good price.