mchan68 Posted October 7, 2009 Share Posted October 7, 2009 Can anybody help me identify the correct engine harness to order for this piece of turd on wheels? Vehicle is a 2005 E-450 VIN# 1FDXE45P05HA22159. It lists either 4C2Z-12B637-LA or 5C2Z-12B637-SA as possible choices, dependent on the Navistar ID tag#. I can't seem to locate an ID tag on this vehicle anywhere, at least not anywhere that would make sense. Quote Link to comment Share on other sites More sharing options...
joshbuys Posted October 8, 2009 Share Posted October 8, 2009 Hope this helps. Looks like a 4C2Z-12B637-AAA was the original part Quote Link to comment Share on other sites More sharing options...
joshbuys Posted October 8, 2009 Share Posted October 8, 2009 Here's the superceded number. Not sure why they changed the base?!?! 4C2Z-9F759-AA Quote Link to comment Share on other sites More sharing options...
LARRY BRUDZYNSKI Posted October 8, 2009 Share Posted October 8, 2009 Welcome to the Blue Diamond way of things. They have done that alot on parts base numbers. Doesn't make any sense why they would do that. Quote Link to comment Share on other sites More sharing options...
mchan68 Posted October 8, 2009 Author Share Posted October 8, 2009 Well, we ordered the 4C2Z-LA harness that arrived this afternoon. It was wrong This harness appears to have wiring for the EGR throttle plate (which no 2005 to 2007 model year 6.0L has). I guess that leaves 5C2Z-SA as the correct one by default. Just as a brainfart, the only two variations that come to my mind, are the EGR throttle plate (or lack of) and the main B+ junction behind the GPCM which 2006 and newer E-Series no longer have, if I remember right. Aaron, you ran into this issue awhile back if I remembered, correct? Quote Link to comment Share on other sites More sharing options...
Aaron Posted October 8, 2009 Share Posted October 8, 2009 Yeah, but I'll be damned if I can remember which one was the right fit, or what the specific difference was, aside from the two things you have already mentioned. I try to block all Econoline repairs from my mind. Quote Link to comment Share on other sites More sharing options...
mchan68 Posted October 9, 2009 Author Share Posted October 9, 2009 I try to block all Econoline repairs from my mind. Unfortunately I don't have that luxury for the moment, seeing as how I have this pig tying up my bay minus a harness while all the other "shit" that's in for me is beginning to pile up outside. Quote Link to comment Share on other sites More sharing options...
Aaron Posted October 10, 2009 Share Posted October 10, 2009 So what did you figure out? Quote Link to comment Share on other sites More sharing options...
mchan68 Posted October 10, 2009 Author Share Posted October 10, 2009 So what did you figure out?5C2Z-12B637-SA IS the correct number for this application (no EGR throttle plate wiring). Quote Link to comment Share on other sites More sharing options...
Aaron Posted October 11, 2009 Share Posted October 11, 2009 Other than the throttle plate wiring, any difference? I've been seeing a lot of trucks lately with the EGR plate body with two dummy sensors on it. Quote Link to comment Share on other sites More sharing options...
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