4 pin trailer 7 pin truck

[Patatoe1]

Hey all have a couple questions. Both of my trailers have four pin connectors.
My '02 F-150 has the four pin connection
My '07 F-150 has both the four pin and seven pin connection
But my '03 F-550 only has the seven pin connection

How do I go about setting either the trailers up to be able to hook up to both four and seven pin connections? Or how do I go about setting the F-550 to accept four pin connectors?

Hope that made sense.

[cet]

You can buy a 7 pin to 4 pin connector. Plug the connecter into the truck and then the trailer into that.

http://shop.easternmarine.com/index....categoryID=284

[bigshoe]

In the past I have used an adaptor from 7 pin to 4. I did not have brakes on that trailer so I do not know if it will effect them or not. Here is a picture of one. And where I got the picture from. I have never bought anything from this site, but I believe I have heard of others mention it before.
http://www.etrailer.com/mm5/merchant...ategory_Code=A
]
http://www.etrailer.com/c-A.htm

[FearThisDeere]

A 7 to 4 adapter for the F550 only is what you need. No big deal. They are cheap and work well. A 4 pin plug does not have brakes.

[Patatoe1]

I love sites like these. I knew what I needed, but the places that I had called around to had no idea what I was talking about. Thanks guys.

One more question. I am correct when saying seven pin right? Is there something called a six pin too?

[bigshoe]

Originally Posted by Patatoe1

I love sites like these. I knew what I needed, but the places that I had called around to had no idea what I was talking about. Thanks guys.

One more question. I am correct when saying seven pin right? Is there something called a six pin too?

Yes there is a six pin also look on the link I provided earlier it shows it.

Mike.

[beano]

There is a 6 pin but most trucks and trailers have 7 pins. You can go to any trailer store and buy an adapter. Not a big deal at all. You might be able to find one at wal mart even!

[corey4671]

any place like autozone will have em but check EBAY! i have a seven pin on my truck and my trailer is six pin.

[Lynden-Jeff]

I just got a 7 pin trailer. The guy at the place gave me a good idea. He gave me a 7 pin plug and gave me the wiring diagram. Im pretty sure its a universal thing so i will post it here, if some one wants to correct me that would be good.

Wire: Terminal:
Green >>> Brown
Brown >>> Green
Yellow >>> Red
White >>> White


I have not tried it but im pretty sure it will work. Now I have 7 pin on both my trailers. WAY better then crappy old 4 pin.

Cheers
Jeff

[grandview (2006)]

If you have to go to Walls-Mart.