Factory Trailer Harness?

[CaptainBuilt]

I've been searching for a trailer harness for a 2014 Ford E-350. One that has the 7 and 4 pin connectors.

I found the plug for it:

Is there still a factory option? Or a good aftermarket option? I would like to add a OEM brake controller (if possible), if not some kind of brake controller.

 

[malcolmzilla]

I just tore into the rear trailer harness on mine to troubleshoot a lack of trailer brakes, OEM as far as I know with a 7pin, and it had those connectors. So you should be able to get the sub harness from the dealer. The factory controller was not an option on mine, 2006, but believe Dorman and others sell the in dash oem one, not sure on the wiring for that being there if it didn't have it from the factory. Mine has the under dash 6 pin Ford plug (4 circuit) so any aftermarket controller is a plug in with that adapter harness, if you have that plug you should have a fairly straight forward install. For the 4 pin you can run a 7 to 4 adapter.

 

[CaptainBuilt]

I just tore into the rear trailer harness on mine to troubleshoot a lack of trailer brakes, OEM as far as I know with a 7pin, and it had those connectors. So you should be able to get the sub harness from the dealer. The factory controller was not an option on mine, 2006, but believe Dorman and others sell the in dash oem one, not sure on the wiring for that being there if it didn't have it from the factory. Mine has the under dash 6 pin Ford plug (4 circuit) so any aftermarket controller is a plug in with that adapter harness, if you have that plug you should have a fairly straight forward install. For the 4 pin you can run a 7 to 4 adapter.

Thanks! Just from pictures it looks like a F-250 harness might work too. Dunno, might give it a go. I have to go to Ford anyway, so I'll ask them for sure.

 

[NatersXJ6]

So many F250/350 in salvage yards. I would start there, pull an entire harness and brake controller, then get a full wiring diagram for your van and start piecing it together.