ICP's different sizes?

[BadMotherTrucker]

Hey ya'll,

If anyone can answer this Id appreciate it. I just bought an ICP and pigtail from someone for my 04. It needs a size 27mm socket. The one on my truck currently needs a 24mm socket. Any ideas? Possibly I got the wrong ICP, or is an aftermarket ICP possibly smaller size? Will the larger one still work on my truck? I'd like to know before I tear it appart. Thanks.

[sinner6.0L]

There are two 2004 model year ICP sensors. One is on the high pressure pump cover and the other is on the right side valve cover. Depending on where your ICP is dictates which size sensor you need.

Early 04, located on the pump cover - 1 1/16"
Late 04, located on the valve cover - 15/16"

[BadMotherTrucker]

Yeah, I have the late 04 on the valve cover. What I'm wondering is are they interchangable on the late 04? I have waited for 2 weeks for this ICP only to find its the wrong one. I clearly told the guy it was a late 04. Oh well. Thanks for your reply, Im going to just assume they are not interchangeable.

[lenzhotrod]

They are somewhat interchangeable. If your ICP is under the turbo, you can use either. If your ICP is on the valve cover I believe you have to use only the one meant for it. If you were to try the earlier type it may not seal at the valve cover.

[87mustang]

No matter where your icp is, put the newer model in no matter what!!!!!

[BadMotherTrucker]

thanks, will do. I already sent the guy a message for the correct one.