It was many years ago now, but I do remember that there was no specific part number in the system for this connector w/pigtails kit. The parts guy (at Bob's Buick-GMC-Pontiac in Milford, CT) spoke with someone at some sort of GM parts help desk for about 15 minutes before they got the part ordered for me. But I have not seen that guy there for a few years now. Sorry I can't help more. I'll take a look for the receipt in case I was wrong about the lack of part number. I'll post if I find anything.