2000 Expedition Tow harness question

[TKull]

Background: I have a 2000 Expedition Eddie Bauer eddition, 5.4l. It came with the factory light duty tow package. It has the brake controler plug in under the dash. The rear harness has the 7 wires plug, but came with the 4 wire adapter. I am wanting to add a brake controler and upgrade the 4 pin rear harness to a 7 pin rear harness. I also want to avoid having to splice wires together.

Questions:

The Ford parts list shows that the factory 7 pin harness for the 2000 F-150 and the 2000 Expedition are the identical part number. Why then do all the aftermarket 7 pin adapters that fit the F-150 say they won't fit the Expedition? What is different?

Will the "Tow Ready 118242 7-Way Replacement OEM Tow Package Wiring Harness" work on my Expedition?

Any advice on the best way to get my end results would be appreciated.

Thanks for the help.

 

[TKull]

As an update, Itried the 118242 harness and it was the right plug, but the wires didn't match, so i guess Ford parts is wrong. The 7-pin harness from a F-150 is not the same for the Expedition. Was able to use the original 4-pin harness and splice the brake contriler wires in.

 

[catmandu]

Did the same thing recently to my rig. Glad I found a 7-pin plug on an Expy at the junk yard right off the bat, would have been pissed when I got home if I pulled one off an F-150! As it was I was pissed that I did not have the 12v power relay for the breakaway battery, had to spend money at NAPA for something that would have been free at the junk yard, dammit.

I did pull a tranny cooler off an F-150 (no Super Duty ones to be found), at least that was plug and play.

I went ahead an soldered in the four wire plug to the seven, since I really hate not having an adapter when I need one. Made a mounting plate out of some sheet metal, now both plugs sit side by side for easy use!