no Dave I bought their coil(s). I realize you were asking about the bolt, but I was just giving you a heads up. They sent me a replacement unit, which was an entirely different design. The original had a magnetic ring, while the replacement picks up the high spots on the cam. It has been sitting in the box for 2 years, I am afraid to try it, the truck runs so good I don't want to "FIX" it again.