Yes it is. Got my parts from NAPA. Parts Plus can cross match,but it comes up as the same parts. What I have done. Is grind down the electrode on the rotor. So now it will clear all four post. Works on the bench anyway.
Been doing tune ups since I was ten. Never had this kind of problem. Going out in the morning early when it is not so hot.To put it back together.
My fat little 63 year old body. Got a little bit to hot the other day. Been sick since then. But feeling better after two days under the AC.