Easy DIY 7-pin tow package complete

[Midlife Crisis]

I am sorry for not following. If the 4 pin is spliced into the 7 pin, how does the 7 pin get the signal to activate the trailer brakes?

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[Haelous]

Can you please provide a parts list with part numbers?

Using the Ford factory 7-pin/4-pin is an excellent end result and looks very good. I haven't seen anyone else do that and I don't know what the part number for it is.

 

[SnowshoeBronco]

I am sorry for not following. If the 4 pin is spliced into the 7 pin, how does the 7 pin get the signal to activate the trailer brakes?

The 4 Pin Harness has 4 wires - White, Green, Yellow, Brown
The 7 Pin Harness has 7 wires - White, Green, Yellow, Brown, Black, Blue, Red

Curt Wires to 7 pin wires:

Yellow to Red
Green to Brown
Brown to Green
White to White

You add the blue, black (the reverse light wire too if you want, I didn't)

Blue is the signal from the trailer brake controller (connected via pigtail as mentioned)
Black is 12v+

 

[SnowshoeBronco]

Can you please provide a parts list with part numbers?

Using the Ford factory 7-pin/4-pin is an excellent end result and looks very good. I haven't seen anyone else do that and I don't know what the part number for it is.

I don't have the part numbers handy, but I linked the controller and harness in a previous reply above.

The other parts I used were:

Ford Hitch Receiver (Comes with the bolts and the plug holder) - I bought this on ebay a year before I got my bronco
Ford 7/4 pin socket - from my parts desk
7 Pin harness (I got this from amazon)
40' of Black Wire
20' of Blue Wire
Double sided 3M heavy duty tape (for mounting the controller under the steering column)

 

[JBlanco]

Great writeup. I only need the reverse center wiring for my boat.

 

[SnowshoeBronco]

Great writeup. I only need the reverse center wiring for my boat.

I was debating adding it to be 100% complete, but I am not sure the best place to pull a signal from. I guess the logical place would be the reverse lights in the tail lights but didn't want to start cutting and not being sure... If you do it, let me know!

 

[MNBigfoot]

Here are some pics of what I was describing:

The pics took this from "cool I'm sure it will help a lot of people", to "I can do that". Any idea if it will work with Bronco's without the LED tail-lights? I know the Curt 4-pins have a different harness for each.

 

[SnowshoeBronco]

The pics took this from "cool I'm sure it will help a lot of people", to "I can do that". Any idea if it will work with Bronco's without the LED tail-lights? I know the Curt 4-pins have a different harness for each.

I can's see why it wouldn't work... I gotta imagine the curt harness, whether its LED or not, delivers the same signal to the 4 pin wires making the install the same as what I did.

 

[351W-Bronco]

This is awesome info, thank you. One of my biggest concerns is getting 12V back to my trailer to keep the trailer battery charged.

Herb

 

[SnowshoeBronco]

This is awesome info, thank you. One of my biggest concerns is getting 12V back to my trailer to keep the trailer battery charged.

Herb

Yep, piece of cake! Get yourself some fish tape and itll make life much easier. I fished from front to back

 

[guzie]

Here are some pics of what I was describing:

Where did you find the 7 pin connector metal mount plate? I had to add the ford hitch myself as well and it only came with a 4 pin plate. My dealer sold me the hitch and the 4 pin wiring that I would need to tap in. I went on etrailer and got their 7 pin plug n play wire harness and bought the 4/7 ford connector like you show. I tried to buy that connector plate from ford but couldn’t find a part number. I just grabbed sheet metal scrap from work and made my own. Would prefer the oem one. Oh, bye the way, ford brake controller is the redarc like you have and their location for it is to install it in the arm rest near where the window and mirror controls are. On that same face but closer to the driver.

 

[Nick72]

I have already installed the Curt hitch receiver.
Does the Ford 7/4 pin plug attach to the Ford hitch or the frame?

 

[SnowshoeBronco]

Where did you find the 7 pin connector metal mount plate? I had to add the ford hitch myself as well and it only came with a 4 pin plate. My dealer sold me the hitch and the 4 pin wiring that I would need to tap in. I went on etrailer and got their 7 pin plug n play wire harness and bought the 4/7 ford connector like you show. I tried to buy that connector plate from ford but couldn’t find a part number. I just grabbed sheet metal scrap from work and made my own. Would prefer the oem one. Oh, bye the way, ford brake controller is the redarc like you have and their location for it is to install it in the arm rest near where the window and mirror controls are. On that same face but closer to the driver.

The bracket for the 7 pin came in the box with my hitch receiver. It had a 4 pin and 7 pin bracket. @flip could probably get you a part number if you ask nicely… good to know about the knob, I kinda like my location better though, just personal preference I guess

 

[SnowshoeBronco]

I have already installed the Curt hitch receiver.
Does the Ford 7/4 pin plug attach to the Ford hitch or the frame?

There is a mounting point on the hitch receiver for the electrics

 

[etmccaus86]

3. Add a pigtail to the blue wire from the harness and run through the firewall plug

What kind of pigtail? Can you show specifically what you used?

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