I recently discovered some disturbing info with my 2007 expy limited. I was expecting to have the long plugs that everyone has breaking off, however when I removed a plug it was a 5507 or NGK PZNAR6A11H. That seems awesome however everything I can find says these plugs are for a 2008 expy with brown boots. However, I have a 2007 with black boots?????? I have called ford and they have no record of my motor being swapped. So now what?? Thanks for any advice.
I will look into the manufactured date, however i thought there was not a change until late in 08. I need to relearn myself on the vin code and get back to you. As for the plugs. They were moto sp509 plugs that came out and they had the NGK number on the bottom of them. That is what came out and what I put in.