Sadly, it is most assuredly an aftermarket one that I put in there. I was able to get it through inspection with a little jury rigging, but do not wish to keep it that way. I will order and OEM to replace and hope for the best. Luckily, the new one has a long head on it and I am able to get a normal wrench on it without sacrificing a child to the car gods. Thanks for the tip, fingers crossed!