> Tom and Martin,
> Thanks for the replies. Actually I have a TR3A, 4cyl. I believe that the
> NAPA guy looked it up in the book before I went to the NGK plug, but its
> possible he just did a cross reference from whatever plug the PO had in
> there, I don't remember. In either event it could well be the wrong plug,
> so please let me know how this changes for the TR3 if you know.
NGK has a good, informative website you might want to check out: