I'm doing the research to purchase a remanufactured cylinder head for my 2004 PT Cruiser (normally aspirated). The numbers cast onto the end of the head are "04667086AG-B". from what I've been able to ascertain, the actual casting number is "7086AG" with the revision of B. All cyclinder heads I've found online for the 04 have the number "7086AG-D". I'm assuming this is simply a revision of the casting and would still be compatible. All sites I've been to indicate that it is compatible, but I am trying to get some other opinions. They are heads with no EGR port, which does match the heads on my PT.