I've read about the 2-part plug breakage problem on 04-05 or 07 model years....Anyone know if I would have this plug type in an 04 Heritage 4.6L? I'm thinking no since it's basically an 03 but want to be sure so I'm not surprised during the tune-up. (Don't have records of when or if the plugs have ever been replaced, I would hope so but you never know....125k mi)

 

No, the 4.6L doesn't have that particular issue.